| /******************************************************************************* |
| * Copyright (c) 2000, 2005 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.swt.widgets; |
| |
| |
| import org.eclipse.swt.internal.win32.*; |
| import org.eclipse.swt.*; |
| import org.eclipse.swt.graphics.*; |
| import org.eclipse.swt.events.*; |
| |
| /** |
| * Instances of this class provide a selectable user interface object |
| * that displays a hierarchy of items and issue notification when an |
| * item in the hierarchy is selected. |
| * <p> |
| * The item children that may be added to instances of this class |
| * must be of type <code>TreeItem</code>. |
| * </p><p> |
| * Note that although this class is a subclass of <code>Composite</code>, |
| * it does not make sense to add <code>Control</code> children to it, |
| * or set a layout on it. |
| * </p><p> |
| * <dl> |
| * <dt><b>Styles:</b></dt> |
| * <dd>SINGLE, MULTI, CHECK, FULL_SELECTION</dd> |
| * <dt><b>Events:</b></dt> |
| * <dd>Selection, DefaultSelection, Collapse, Expand</dd> |
| * </dl> |
| * <p> |
| * Note: Only one of the styles SINGLE and MULTI may be specified. |
| * </p><p> |
| * IMPORTANT: This class is <em>not</em> intended to be subclassed. |
| * </p> |
| */ |
| public class Tree extends Composite { |
| TreeItem [] items; |
| TreeColumn [] columns; |
| ImageList imageList, headerImageList; |
| TreeItem currentItem; |
| TreeColumn sortColumn; |
| int hwndParent, hwndHeader, hAnchor, hInsert, lastID; |
| int hFirstIndexOf, hLastIndexOf, lastIndexOf, sortDirection; |
| boolean dragStarted, gestureCompleted, insertAfter, shrink; |
| boolean ignoreSelect, ignoreExpand, ignoreDeselect, ignoreResize; |
| boolean lockSelection, oldSelected, newSelected, ignoreColumnMove; |
| boolean linesVisible, customDraw, printClient; |
| int headerToolTipHandle; |
| static final int INSET = 3; |
| static final int GRID_WIDTH = 1; |
| static final int SORT_WIDTH = 10; |
| static final int HEADER_MARGIN = 12; |
| static final int HEADER_EXTRA = 3; |
| static final int TreeProc; |
| static final TCHAR TreeClass = new TCHAR (0, OS.WC_TREEVIEW, true); |
| static final int HeaderProc; |
| static final TCHAR HeaderClass = new TCHAR (0, OS.WC_HEADER, true); |
| static final char [] BUTTON = new char [] {'B', 'U', 'T', 'T', 'O', 'N', 0}; |
| static { |
| WNDCLASS lpWndClass = new WNDCLASS (); |
| OS.GetClassInfo (0, TreeClass, lpWndClass); |
| TreeProc = lpWndClass.lpfnWndProc; |
| OS.GetClassInfo (0, HeaderClass, lpWndClass); |
| HeaderProc = lpWndClass.lpfnWndProc; |
| } |
| |
| /** |
| * Constructs a new instance of this class given its parent |
| * and a style value describing its behavior and appearance. |
| * <p> |
| * The style value is either one of the style constants defined in |
| * class <code>SWT</code> which is applicable to instances of this |
| * class, or must be built by <em>bitwise OR</em>'ing together |
| * (that is, using the <code>int</code> "|" operator) two or more |
| * of those <code>SWT</code> style constants. The class description |
| * lists the style constants that are applicable to the class. |
| * Style bits are also inherited from superclasses. |
| * </p> |
| * |
| * @param parent a composite control which will be the parent of the new instance (cannot be null) |
| * @param style the style of control to construct |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> |
| * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> |
| * </ul> |
| * |
| * @see SWT#SINGLE |
| * @see SWT#MULTI |
| * @see SWT#CHECK |
| * @see Widget#checkSubclass |
| * @see Widget#getStyle |
| */ |
| public Tree (Composite parent, int style) { |
| super (parent, checkStyle (style)); |
| } |
| |
| static int checkStyle (int style) { |
| /* |
| * Feature in Windows. It is not possible to create |
| * a tree that scrolls and does not have scroll bars. |
| * The TVS_NOSCROLL style will remove the scroll bars |
| * but the tree will never scroll. Therefore, no matter |
| * what style bits are specified, set the H_SCROLL and |
| * V_SCROLL bits so that the SWT style will match the |
| * widget that Windows creates. |
| */ |
| style |= SWT.H_SCROLL | SWT.V_SCROLL; |
| return checkBits (style, SWT.SINGLE, SWT.MULTI, 0, 0, 0, 0); |
| } |
| |
| int _getBackgroundPixel () { |
| if (OS.IsWinCE) return OS.GetSysColor (OS.COLOR_WINDOW); |
| int pixel = OS.SendMessage (handle, OS.TVM_GETBKCOLOR, 0, 0); |
| if (pixel == -1) return OS.GetSysColor (OS.COLOR_WINDOW); |
| return pixel; |
| } |
| |
| TreeItem _getItem (int hItem, int id) { |
| if ((style & SWT.VIRTUAL) == 0) return items [id]; |
| return id != -1 ? items [id] : new TreeItem (this, SWT.NONE, -1, -1, hItem); |
| } |
| |
| void _setBackgroundImage (Image image) { |
| super._setBackgroundImage (image); |
| |
| /* |
| * Feature in Windows. If TVM_SETBKCOLOR is never |
| * used to set the background color of a tree, the |
| * background color of the lines and the plus/minus |
| * will not be drawn using the default background |
| * color, not the HBRUSH returned from WM_CTLCOLOR. |
| * The fix is to set the background color to the |
| * default (when it is already the default) to make |
| * Windows use the brush. |
| */ |
| if (OS.COMCTL32_MAJOR < 6) { |
| if (OS.SendMessage (handle, OS.TVM_GETBKCOLOR, 0, 0) == -1) { |
| OS.SendMessage (handle, OS.TVM_SETBKCOLOR, 0, -1); |
| } |
| } |
| |
| //FIXME - images do not draw properly with TVS_FULLROWSELECT |
| if ((style & SWT.FULL_SELECTION) != 0) { |
| int newBits = OS.GetWindowLong (handle, OS.GWL_STYLE), oldBits = newBits; |
| if (image == null) { |
| newBits |= OS.TVS_FULLROWSELECT; |
| } else { |
| newBits &= ~OS.TVS_FULLROWSELECT; |
| } |
| if (newBits != oldBits) { |
| OS.SetWindowLong (handle, OS.GWL_STYLE, newBits); |
| OS.InvalidateRect (handle, null, true); |
| } |
| } |
| } |
| |
| void _setBackgroundPixel (int pixel) { |
| /* |
| * Bug in Windows. When TVM_SETBKCOLOR is used more |
| * than once to set the background color of a tree, |
| * the background color of the lines and the plus/minus |
| * does not change to the new color. The fix is to set |
| * the background color to the default before setting |
| * the new color. |
| */ |
| int oldPixel = OS.SendMessage (handle, OS.TVM_GETBKCOLOR, 0, 0); |
| if (oldPixel != -1) OS.SendMessage (handle, OS.TVM_SETBKCOLOR, 0, -1); |
| OS.SendMessage (handle, OS.TVM_SETBKCOLOR, 0, pixel); |
| if ((style & SWT.CHECK) != 0) setCheckboxImageList (); |
| } |
| |
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notified when the receiver's selection changes, by sending |
| * it one of the messages defined in the <code>SelectionListener</code> |
| * interface. |
| * <p> |
| * When <code>widgetSelected</code> is called, the item field of the event object is valid. |
| * If the reciever has <code>SWT.CHECK</code> style set and the check selection changes, |
| * the event object detail field contains the value <code>SWT.CHECK</code>. |
| * <code>widgetDefaultSelected</code> is typically called when an item is double-clicked. |
| * The item field of the event object is valid for default selection, but the detail field is not used. |
| * </p> |
| * |
| * @param listener the listener which should be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see SelectionListener |
| * @see #removeSelectionListener |
| * @see SelectionEvent |
| */ |
| public void addSelectionListener(SelectionListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| TypedListener typedListener = new TypedListener (listener); |
| addListener (SWT.Selection, typedListener); |
| addListener (SWT.DefaultSelection, typedListener); |
| } |
| |
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notified when an item in the receiver is expanded or collapsed |
| * by sending it one of the messages defined in the <code>TreeListener</code> |
| * interface. |
| * |
| * @param listener the listener which should be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see TreeListener |
| * @see #removeTreeListener |
| */ |
| public void addTreeListener(TreeListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| TypedListener typedListener = new TypedListener (listener); |
| addListener (SWT.Expand, typedListener); |
| addListener (SWT.Collapse, typedListener); |
| } |
| |
| int borderHandle () { |
| return hwndParent != 0 ? hwndParent : handle; |
| } |
| |
| int callWindowProc (int hwnd, int msg, int wParam, int lParam) { |
| if (handle == 0) return 0; |
| if (hwndParent != 0 && hwnd == hwndParent) { |
| return OS.DefWindowProc (hwnd, msg, wParam, lParam); |
| } |
| if (hwndHeader != 0 && hwnd == hwndHeader) { |
| return OS.CallWindowProc (HeaderProc, hwnd, msg, wParam, lParam); |
| } |
| switch (msg) { |
| case OS.WM_SETFOCUS: { |
| /* |
| * Feature in Windows. When a tree control processes WM_SETFOCUS, |
| * if no item is selected, the first item in the tree is selected. |
| * This is unexpected and might clear the previous selection. |
| * The fix is to detect that there is no selection and set it to |
| * the first item in the tree. If the item was not selected, |
| * only the focus is assigned. |
| */ |
| if ((style & SWT.SINGLE) != 0) break; |
| int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0); |
| if (hItem == 0) { |
| hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_ROOT, 0); |
| if (hItem != 0) { |
| TVITEM tvItem = new TVITEM (); |
| tvItem.mask = OS.TVIF_PARAM | OS.TVIF_STATE; |
| tvItem.hItem = hItem; |
| OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); |
| ignoreDeselect = ignoreSelect = lockSelection = true; |
| OS.SendMessage (handle, OS.TVM_SELECTITEM, OS.TVGN_CARET, hItem); |
| if ((tvItem.state & OS.TVIS_SELECTED) == 0) { |
| OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); |
| } |
| ignoreDeselect = ignoreSelect = lockSelection = false; |
| } |
| } |
| break; |
| } |
| } |
| int hItem = 0; |
| switch (msg) { |
| /* Keyboard messages */ |
| case OS.WM_KEYDOWN: |
| if (wParam == OS.VK_CONTROL || wParam == OS.VK_SHIFT) break; |
| //FALL THROUGH |
| case OS.WM_CHAR: |
| case OS.WM_IME_CHAR: |
| case OS.WM_KEYUP: |
| case OS.WM_SYSCHAR: |
| case OS.WM_SYSKEYDOWN: |
| case OS.WM_SYSKEYUP: |
| |
| /* Scroll messages */ |
| case OS.WM_HSCROLL: |
| case OS.WM_VSCROLL: |
| |
| /* Resize messages */ |
| case OS.WM_SIZE: |
| if (backgroundImage != null && drawCount == 0) { |
| OS.DefWindowProc (handle, OS.WM_SETREDRAW, 0, 0); |
| } |
| //FALL THROUGH |
| |
| /* Mouse messages */ |
| case OS.WM_LBUTTONDBLCLK: |
| case OS.WM_LBUTTONDOWN: |
| case OS.WM_LBUTTONUP: |
| case OS.WM_MBUTTONDBLCLK: |
| case OS.WM_MBUTTONDOWN: |
| case OS.WM_MBUTTONUP: |
| case OS.WM_MOUSEHOVER: |
| case OS.WM_MOUSELEAVE: |
| case OS.WM_MOUSEMOVE: |
| case OS.WM_MOUSEWHEEL: |
| case OS.WM_RBUTTONDBLCLK: |
| case OS.WM_RBUTTONDOWN: |
| case OS.WM_RBUTTONUP: |
| case OS.WM_XBUTTONDBLCLK: |
| case OS.WM_XBUTTONDOWN: |
| case OS.WM_XBUTTONUP: |
| |
| /* Other messages */ |
| case OS.WM_SETFONT: |
| case OS.WM_TIMER: { |
| if (backgroundImage != null) { |
| hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_FIRSTVISIBLE, 0); |
| } |
| } |
| } |
| int code = OS.CallWindowProc (TreeProc, hwnd, msg, wParam, lParam); |
| switch (msg) { |
| /* Keyboard messages */ |
| case OS.WM_KEYDOWN: |
| if (wParam == OS.VK_CONTROL || wParam == OS.VK_SHIFT) break; |
| //FALL THROUGH |
| case OS.WM_CHAR: |
| case OS.WM_IME_CHAR: |
| case OS.WM_KEYUP: |
| case OS.WM_SYSCHAR: |
| case OS.WM_SYSKEYDOWN: |
| case OS.WM_SYSKEYUP: |
| |
| /* Scroll messages */ |
| case OS.WM_HSCROLL: |
| case OS.WM_VSCROLL: |
| |
| /* Resize messages */ |
| case OS.WM_SIZE: |
| if (backgroundImage != null && drawCount == 0) { |
| OS.DefWindowProc (handle, OS.WM_SETREDRAW, 1, 0); |
| OS.InvalidateRect (handle, null, true); |
| if (hwndHeader != 0) OS.InvalidateRect (hwndHeader, null, true); |
| } |
| //FALL THROUGH |
| |
| /* Mouse messages */ |
| case OS.WM_LBUTTONDBLCLK: |
| case OS.WM_LBUTTONDOWN: |
| case OS.WM_LBUTTONUP: |
| case OS.WM_MBUTTONDBLCLK: |
| case OS.WM_MBUTTONDOWN: |
| case OS.WM_MBUTTONUP: |
| case OS.WM_MOUSEHOVER: |
| case OS.WM_MOUSELEAVE: |
| case OS.WM_MOUSEMOVE: |
| case OS.WM_MOUSEWHEEL: |
| case OS.WM_RBUTTONDBLCLK: |
| case OS.WM_RBUTTONDOWN: |
| case OS.WM_RBUTTONUP: |
| case OS.WM_XBUTTONDBLCLK: |
| case OS.WM_XBUTTONDOWN: |
| case OS.WM_XBUTTONUP: |
| |
| /* Other messages */ |
| case OS.WM_SETFONT: |
| case OS.WM_TIMER: { |
| if (backgroundImage != null) { |
| if (hItem != OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_FIRSTVISIBLE, 0)) { |
| OS.InvalidateRect (handle, null, true); |
| } |
| } |
| updateScrollBar (); |
| } |
| } |
| return code; |
| } |
| |
| boolean checkData (TreeItem item, boolean redraw) { |
| if (item.cached) return true; |
| if ((style & SWT.VIRTUAL) != 0) { |
| item.cached = true; |
| Event event = new Event (); |
| event.item = item; |
| currentItem = item; |
| sendEvent (SWT.SetData, event); |
| //widget could be disposed at this point |
| currentItem = null; |
| if (isDisposed () || item.isDisposed ()) return false; |
| if (redraw) item.redraw (); |
| } |
| return true; |
| } |
| |
| boolean checkHandle (int hwnd) { |
| return hwnd == handle || (hwndParent != 0 && hwnd == hwndParent) || (hwndHeader != 0 && hwnd == hwndHeader); |
| } |
| |
| boolean checkScroll (int hItem) { |
| /* |
| * Feature in Windows. If redraw is turned off using WM_SETREDRAW |
| * and a tree item that is not a child of the first root is selected or |
| * scrolled using TVM_SELECTITEM or TVM_ENSUREVISIBLE, then scrolling |
| * does not occur. The fix is to detect this case, and make sure |
| * that redraw is temporarly enabled. To avoid flashing, DefWindowProc() |
| * is called to disable redrawing. |
| * |
| * NOTE: The code that actually works around the problem is in the |
| * callers of this method. |
| */ |
| if (drawCount == 0) return false; |
| int hRoot = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_ROOT, 0); |
| int hParent = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_PARENT, hItem); |
| while (hParent != hRoot && hParent != 0) { |
| hParent = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_PARENT, hParent); |
| } |
| return hParent == 0; |
| } |
| |
| protected void checkSubclass () { |
| if (!isValidSubclass ()) error (SWT.ERROR_INVALID_SUBCLASS); |
| } |
| |
| /** |
| * Clears the item at the given zero-relative index in the receiver. |
| * The text, icon and other attributes of the item are set to the default |
| * value. If the tree was created with the SWT.VIRTUAL style, these |
| * attributes are requested again as needed. |
| * |
| * @param index the index of the item to clear |
| * @param all <code>true</code>if all child items should be cleared, and <code>false</code> otherwise |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see SWT#VIRTUAL |
| * @see SWT#SetData |
| * |
| * @since 3.2 |
| */ |
| public void clear (int index, boolean all) { |
| checkWidget (); |
| int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_ROOT, 0); |
| if (hItem == 0) error (SWT.ERROR_INVALID_RANGE); |
| hItem = findItem (hItem, index); |
| if (hItem == 0) error (SWT.ERROR_INVALID_RANGE); |
| TVITEM tvItem = new TVITEM (); |
| tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_PARAM; |
| clear (hItem, tvItem); |
| if (all) { |
| hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CHILD, hItem); |
| clearAll (hItem, tvItem, all); |
| } |
| } |
| |
| void clear (int hItem, TVITEM tvItem) { |
| tvItem.hItem = hItem; |
| TreeItem item = null; |
| if (OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem) != 0) { |
| item = tvItem.lParam != -1 ? items [tvItem.lParam] : null; |
| } |
| if (item != null) { |
| item.clear (); |
| item.redraw (); |
| } |
| } |
| |
| /** |
| * Clears all the items in the receiver. The text, icon and other |
| * attribues of the items are set to their default values. If the |
| * tree was created with the SWT.VIRTUAL style, these attributes |
| * are requested again as needed. |
| * |
| * @param all <code>true</code>if all child items should be cleared, and <code>false</code> otherwise |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see SWT#VIRTUAL |
| * @see SWT#SetData |
| * |
| * @since 3.2 |
| */ |
| public void clearAll (boolean all) { |
| checkWidget (); |
| int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_ROOT, 0); |
| if (hItem == 0) return; |
| TVITEM tvItem = new TVITEM (); |
| tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_PARAM; |
| clearAll (hItem, tvItem, all); |
| } |
| |
| void clearAll (int hItem, TVITEM tvItem, boolean all) { |
| while (hItem != 0) { |
| clear (hItem, tvItem); |
| int hFirstItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CHILD, hItem); |
| if (all) clearAll (hFirstItem, tvItem, all); |
| hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXT, hItem); |
| } |
| } |
| |
| public Point computeSize (int wHint, int hHint, boolean changed) { |
| checkWidget (); |
| int width = 0, height = 0; |
| if (hwndHeader != 0) { |
| HDITEM hdItem = new HDITEM (); |
| hdItem.mask = OS.HDI_WIDTH; |
| int count = OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); |
| for (int i=0; i<count; i++) { |
| OS.SendMessage (hwndHeader, OS.HDM_GETITEM, i, hdItem); |
| width += hdItem.cxy; |
| } |
| RECT rect = new RECT (); |
| OS.GetWindowRect (hwndHeader, rect); |
| height += rect.bottom - rect.top; |
| } |
| RECT rect = new RECT (); |
| int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_ROOT, 0); |
| while (hItem != 0) { |
| rect.left = hItem; |
| if (OS.SendMessage (handle, OS.TVM_GETITEMRECT, 1, rect) != 0) { |
| width = Math.max (width, rect.right); |
| height += rect.bottom - rect.top; |
| } |
| hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXT, hItem); |
| } |
| if (width == 0) width = DEFAULT_WIDTH; |
| if (height == 0) height = DEFAULT_HEIGHT; |
| if (wHint != SWT.DEFAULT) width = wHint; |
| if (hHint != SWT.DEFAULT) height = hHint; |
| int border = getBorderWidth (); |
| width += border * 2; |
| height += border * 2; |
| if ((style & SWT.V_SCROLL) != 0) { |
| width += OS.GetSystemMetrics (OS.SM_CXVSCROLL); |
| } |
| if ((style & SWT.H_SCROLL) != 0) { |
| height += OS.GetSystemMetrics (OS.SM_CYHSCROLL); |
| } |
| return new Point (width, height); |
| } |
| |
| void createHandle () { |
| super.createHandle (); |
| state &= ~(CANVAS | TRANSPARENT); |
| |
| /* |
| * Feature in Windows. In version 5.8 of COMCTL32.DLL, |
| * if the font is changed for an item, the bounds for the |
| * item are not updated, causing the text to be clipped. |
| * The fix is to detect the version of COMCTL32.DLL, and |
| * if it is one of the versions with the problem, then |
| * use version 5.00 of the control (a version that does |
| * not have the problem). This is the recomended work |
| * around from the MSDN. |
| */ |
| if (!OS.IsWinCE) { |
| if (OS.COMCTL32_MAJOR < 6) { |
| OS.SendMessage (handle, OS.CCM_SETVERSION, 5, 0); |
| } |
| } |
| |
| /* Set the checkbox image list */ |
| if ((style & SWT.CHECK) != 0) setCheckboxImageList (); |
| |
| /* |
| * Feature in Windows. When the control is created, |
| * it does not use the default system font. A new HFONT |
| * is created and destroyed when the control is destroyed. |
| * This means that a program that queries the font from |
| * this control, uses the font in another control and then |
| * destroys this control will have the font unexpectedly |
| * destroyed in the other control. The fix is to assign |
| * the font ourselves each time the control is created. |
| * The control will not destroy a font that it did not |
| * create. |
| */ |
| int hFont = OS.GetStockObject (OS.SYSTEM_FONT); |
| OS.SendMessage (handle, OS.WM_SETFONT, hFont, 0); |
| } |
| |
| void createHeaderToolTips () { |
| if (OS.IsWinCE) return; |
| if (headerToolTipHandle != 0) return; |
| headerToolTipHandle = OS.CreateWindowEx ( |
| 0, |
| new TCHAR (0, OS.TOOLTIPS_CLASS, true), |
| null, |
| OS.TTS_ALWAYSTIP, |
| OS.CW_USEDEFAULT, 0, OS.CW_USEDEFAULT, 0, |
| 0, |
| 0, |
| OS.GetModuleHandle (null), |
| null); |
| if (headerToolTipHandle == 0) error (SWT.ERROR_NO_HANDLES); |
| /* |
| * Feature in Windows. Despite the fact that the |
| * tool tip text contains \r\n, the tooltip will |
| * not honour the new line unless TTM_SETMAXTIPWIDTH |
| * is set. The fix is to set TTM_SETMAXTIPWIDTH to |
| * a large value. |
| */ |
| OS.SendMessage (headerToolTipHandle, OS.TTM_SETMAXTIPWIDTH, 0, 0x7FFF); |
| } |
| |
| void createItem (TreeColumn column, int index) { |
| if (hwndHeader == 0) createParent (); |
| int columnCount = OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); |
| if (!(0 <= index && index <= columnCount)) error (SWT.ERROR_INVALID_RANGE); |
| if (columnCount == columns.length) { |
| TreeColumn [] newColumns = new TreeColumn [columns.length + 4]; |
| System.arraycopy (columns, 0, newColumns, 0, columns.length); |
| columns = newColumns; |
| } |
| for (int i=0; i<items.length; i++) { |
| TreeItem item = items [i]; |
| if (item != null) { |
| String [] strings = item.strings; |
| if (strings != null) { |
| String [] temp = new String [columnCount + 1]; |
| System.arraycopy (strings, 0, temp, 0, index); |
| System.arraycopy (strings, index, temp, index + 1, columnCount - index); |
| item.strings = temp; |
| } |
| Image [] images = item.images; |
| if (images != null) { |
| Image [] temp = new Image [columnCount + 1]; |
| System.arraycopy (images, 0, temp, 0, index); |
| System.arraycopy (images, index, temp, index + 1, columnCount - index); |
| item.images = temp; |
| } |
| if (index == 0) { |
| if (columnCount != 0) { |
| if (strings == null) { |
| item.strings = new String [columnCount + 1]; |
| item.strings [1] = item.text; |
| } |
| item.text = ""; |
| if (images == null) { |
| item.images = new Image [columnCount + 1]; |
| item.images [1] = item.image; |
| } |
| item.image = null; |
| } |
| } |
| if (item.cellBackground != null) { |
| int [] cellBackground = item.cellBackground; |
| int [] temp = new int [columnCount + 1]; |
| System.arraycopy (cellBackground, 0, temp, 0, index); |
| System.arraycopy (cellBackground, index, temp, index + 1, columnCount - index); |
| temp [index] = -1; |
| item.cellBackground = temp; |
| } |
| if (item.cellForeground != null) { |
| int [] cellForeground = item.cellForeground; |
| int [] temp = new int [columnCount + 1]; |
| System.arraycopy (cellForeground, 0, temp, 0, index); |
| System.arraycopy (cellForeground, index, temp, index + 1, columnCount - index); |
| temp [index] = -1; |
| item.cellForeground = temp; |
| } |
| if (item.cellFont != null) { |
| int [] cellFont = item.cellFont; |
| int [] temp = new int [columnCount + 1]; |
| System.arraycopy (cellFont, 0, temp, 0, index); |
| System.arraycopy (cellFont, index, temp, index + 1, columnCount- index); |
| temp [index] = -1; |
| item.cellFont = temp; |
| } |
| } |
| } |
| System.arraycopy (columns, index, columns, index + 1, columnCount - index); |
| columns [index] = column; |
| |
| /* |
| * Bug in Windows. For some reason, when HDM_INSERTITEM |
| * is used to insert an item into a header without text, |
| * if is not possible to set the text at a later time. |
| * The fix is to insert the item with an empty string. |
| */ |
| int hHeap = OS.GetProcessHeap (); |
| int pszText = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, TCHAR.sizeof); |
| HDITEM hdItem = new HDITEM (); |
| hdItem.mask = OS.HDI_TEXT | OS.HDI_FORMAT; |
| hdItem.pszText = pszText; |
| if ((column.style & SWT.LEFT) == SWT.LEFT) hdItem.fmt = OS.HDF_LEFT; |
| if ((column.style & SWT.CENTER) == SWT.CENTER) hdItem.fmt = OS.HDF_CENTER; |
| if ((column.style & SWT.RIGHT) == SWT.RIGHT) hdItem.fmt = OS.HDF_RIGHT; |
| OS.SendMessage (hwndHeader, OS.HDM_INSERTITEM, index, hdItem); |
| if (pszText != 0) OS.HeapFree (hHeap, 0, pszText); |
| |
| /* When the first column is created, hide the horizontal scroll bar */ |
| if (columnCount == 0) { |
| int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); |
| bits |= OS.TVS_NOHSCROLL; |
| OS.SetWindowLong (handle, OS.GWL_STYLE, bits); |
| /* |
| * Bug in Windows. When TVS_NOHSCROLL is set after items |
| * have been inserted into the tree, Windows shows the |
| * scroll bar. The fix is to check for this case and |
| * explicilty hide the scroll bar explicitly. |
| */ |
| int count = OS.SendMessage (handle, OS.TVM_GETCOUNT, 0, 0); |
| if (count != 0) { |
| if (!OS.IsWinCE) OS.ShowScrollBar (handle, OS.SB_HORZ, false); |
| } |
| } |
| setScrollWidth (); |
| updateImageList (); |
| updateScrollBar (); |
| |
| /* Redraw to hide the items when the first column is created */ |
| if (columnCount == 0 && OS.SendMessage (handle, OS.TVM_GETCOUNT, 0, 0) != 0) { |
| OS.InvalidateRect (handle, null, true); |
| } |
| |
| /* Add the tool tip item for the header */ |
| if (headerToolTipHandle != 0) { |
| RECT rect = new RECT (); |
| if (OS.SendMessage (hwndHeader, OS.HDM_GETITEMRECT, index, rect) != 0) { |
| TOOLINFO lpti = new TOOLINFO (); |
| lpti.cbSize = TOOLINFO.sizeof; |
| lpti.uFlags = OS.TTF_SUBCLASS; |
| lpti.hwnd = hwndHeader; |
| lpti.uId = column.id = display.nextToolTipId++; |
| lpti.left = rect.left; |
| lpti.top = rect.top; |
| lpti.right = rect.right; |
| lpti.bottom = rect.bottom; |
| lpti.lpszText = OS.LPSTR_TEXTCALLBACK; |
| OS.SendMessage (headerToolTipHandle, OS.TTM_ADDTOOL, 0, lpti); |
| } |
| } |
| } |
| |
| void createItem (TreeItem item, int hParent, int hInsertAfter, int hItem) { |
| int id = -1; |
| if (item != null) { |
| id = lastID < items.length ? lastID : 0; |
| while (id < items.length && items [id] != null) id++; |
| if (id == items.length) { |
| /* |
| * Grow the array faster when redraw is off or the |
| * table is not visible. When the table is painted, |
| * the items array is resized to be smaller to reduce |
| * memory usage. |
| */ |
| int length = 0; |
| if (drawCount == 0 && OS.IsWindowVisible (handle)) { |
| length = items.length + 4; |
| } else { |
| shrink = true; |
| length = Math.max (4, items.length * 3 / 2); |
| } |
| TreeItem [] newItems = new TreeItem [length]; |
| System.arraycopy (items, 0, newItems, 0, items.length); |
| items = newItems; |
| } |
| lastID = id + 1; |
| } |
| int hNewItem = 0; |
| if (hItem == 0) { |
| TVINSERTSTRUCT tvInsert = new TVINSERTSTRUCT (); |
| tvInsert.hParent = hParent; |
| tvInsert.hInsertAfter = hInsertAfter; |
| tvInsert.lParam = id; |
| tvInsert.pszText = OS.LPSTR_TEXTCALLBACK; |
| tvInsert.iImage = tvInsert.iSelectedImage = OS.I_IMAGECALLBACK; |
| tvInsert.mask = OS.TVIF_TEXT | OS.TVIF_IMAGE | OS.TVIF_SELECTEDIMAGE | OS.TVIF_HANDLE | OS.TVIF_PARAM; |
| if ((style & SWT.CHECK) != 0) { |
| tvInsert.mask = tvInsert.mask | OS.TVIF_STATE; |
| tvInsert.state = 1 << 12; |
| tvInsert.stateMask = OS.TVIS_STATEIMAGEMASK; |
| } |
| hNewItem = OS.SendMessage (handle, OS.TVM_INSERTITEM, 0, tvInsert); |
| if (hNewItem == 0) error (SWT.ERROR_ITEM_NOT_ADDED); |
| /* |
| * This code is intentionally commented. |
| */ |
| // if (hParent != 0) { |
| // int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); |
| // bits |= OS.TVS_LINESATROOT; |
| // OS.SetWindowLong (handle, OS.GWL_STYLE, bits); |
| // } |
| } else { |
| TVITEM tvItem = new TVITEM (); |
| tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_PARAM; |
| tvItem.hItem = hNewItem = hItem; |
| tvItem.lParam = id; |
| OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); |
| } |
| if (item != null) { |
| item.handle = hNewItem; |
| items [id] = item; |
| } |
| if (hItem == 0) { |
| /* |
| * Bug in Windows. When a child item is added to a parent item |
| * that has no children outside of WM_NOTIFY with control code |
| * TVN_ITEMEXPANDED, the tree widget does not redraw the +/- |
| * indicator. The fix is to detect the case when the first |
| * child is added to a visible parent item and redraw the parent. |
| */ |
| if (drawCount == 0 && OS.IsWindowVisible (handle)) { |
| int hChild = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CHILD, hParent); |
| if (hChild != 0 && OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXT, hChild) == 0) { |
| RECT rect = new RECT (); |
| rect.left = hParent; |
| if (OS.SendMessage (handle, OS.TVM_GETITEMRECT, 0, rect) != 0) { |
| OS.InvalidateRect (handle, rect, true); |
| } |
| } |
| } |
| updateScrollBar (); |
| } |
| } |
| |
| void createParent () { |
| forceResize (); |
| RECT rect = new RECT (); |
| OS.GetWindowRect (handle, rect); |
| OS.MapWindowPoints (0, parent.handle, rect, 2); |
| int oldStyle = OS.GetWindowLong (handle, OS.GWL_STYLE); |
| int newStyle = super.widgetStyle () & ~OS.WS_VISIBLE; |
| if ((oldStyle & OS.WS_DISABLED) != 0) newStyle |= OS.WS_DISABLED; |
| // if ((oldStyle & OS.WS_VISIBLE) != 0) newStyle |= OS.WS_VISIBLE; |
| hwndParent = OS.CreateWindowEx ( |
| super.widgetExtStyle (), |
| super.windowClass (), |
| null, |
| newStyle, |
| rect.left, |
| rect.top, |
| rect.right - rect.left, |
| rect.bottom - rect.top, |
| parent.handle, |
| 0, |
| OS.GetModuleHandle (null), |
| null); |
| if (hwndParent == 0) error (SWT.ERROR_NO_HANDLES); |
| OS.SetWindowLong (hwndParent, OS.GWL_ID, hwndParent); |
| int bits = 0; |
| if (OS.WIN32_VERSION >= OS.VERSION (4, 10)) { |
| bits |= OS.WS_EX_NOINHERITLAYOUT; |
| if ((style & SWT.RIGHT_TO_LEFT) != 0) bits |= OS.WS_EX_LAYOUTRTL; |
| } |
| hwndHeader = OS.CreateWindowEx ( |
| bits, |
| HeaderClass, |
| null, |
| OS.HDS_BUTTONS | OS.HDS_FULLDRAG | OS.HDS_DRAGDROP | OS.HDS_HIDDEN | OS.WS_CHILD | OS.WS_CLIPSIBLINGS, |
| 0, 0, 0, 0, |
| hwndParent, |
| 0, |
| OS.GetModuleHandle (null), |
| null); |
| if (hwndHeader == 0) error (SWT.ERROR_NO_HANDLES); |
| OS.SetWindowLong (hwndHeader, OS.GWL_ID, hwndHeader); |
| if (OS.IsDBLocale) { |
| int hIMC = OS.ImmGetContext (handle); |
| OS.ImmAssociateContext (hwndParent, hIMC); |
| OS.ImmAssociateContext (hwndHeader, hIMC); |
| OS.ImmReleaseContext (handle, hIMC); |
| } |
| if (!OS.IsPPC) { |
| if ((style & SWT.BORDER) != 0) { |
| int oldExStyle = OS.GetWindowLong (handle, OS.GWL_EXSTYLE); |
| oldExStyle &= ~OS.WS_EX_CLIENTEDGE; |
| OS.SetWindowLong (handle, OS.GWL_EXSTYLE, oldExStyle); |
| } |
| } |
| int hFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0); |
| if (hFont != 0) OS.SendMessage (hwndHeader, OS.WM_SETFONT, hFont, 0); |
| int hwndInsertAfter = OS.GetWindow (handle, OS.GW_HWNDPREV); |
| int flags = OS.SWP_NOSIZE | OS.SWP_NOMOVE | OS.SWP_NOACTIVATE; |
| SetWindowPos (hwndParent, hwndInsertAfter, 0, 0, 0, 0, flags); |
| SCROLLINFO info = new SCROLLINFO (); |
| info.cbSize = SCROLLINFO.sizeof; |
| info.fMask = OS.SIF_RANGE | OS.SIF_PAGE; |
| OS.GetScrollInfo (hwndParent, OS.SB_HORZ, info); |
| info.nPage = info.nMax + 1; |
| OS.SetScrollInfo (hwndParent, OS.SB_HORZ, info, true); |
| OS.GetScrollInfo (hwndParent, OS.SB_VERT, info); |
| info.nPage = info.nMax + 1; |
| OS.SetScrollInfo (hwndParent, OS.SB_VERT, info, true); |
| customDraw = true; |
| deregister (); |
| if ((oldStyle & OS.WS_VISIBLE) != 0) { |
| OS.ShowWindow (hwndParent, OS.SW_SHOW); |
| } |
| int hwndFocus = OS.GetFocus (); |
| if (hwndFocus == handle) OS.SetFocus (hwndParent); |
| OS.SetParent (handle, hwndParent); |
| if (hwndFocus == handle) OS.SetFocus (handle); |
| register (); |
| subclass (); |
| } |
| |
| void createWidget () { |
| super.createWidget (); |
| items = new TreeItem [4]; |
| columns = new TreeColumn [4]; |
| } |
| |
| int defaultBackground () { |
| return OS.GetSysColor (OS.COLOR_WINDOW); |
| } |
| |
| void deregister () { |
| super.deregister (); |
| if (hwndParent != 0) display.removeControl (hwndParent); |
| if (hwndHeader != 0) display.removeControl (hwndHeader); |
| } |
| |
| void deselect (int hItem, TVITEM tvItem, int hIgnoreItem) { |
| while (hItem != 0) { |
| if (hItem != hIgnoreItem) { |
| tvItem.hItem = hItem; |
| OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); |
| } |
| int hFirstItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CHILD, hItem); |
| deselect (hFirstItem, tvItem, hIgnoreItem); |
| hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXT, hItem); |
| } |
| } |
| |
| /** |
| * Deselects all selected items in the receiver. |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void deselectAll () { |
| checkWidget (); |
| TVITEM tvItem = new TVITEM (); |
| tvItem.mask = OS.TVIF_STATE; |
| tvItem.stateMask = OS.TVIS_SELECTED; |
| if ((style & SWT.SINGLE) != 0) { |
| int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0); |
| if (hItem != 0) { |
| tvItem.hItem = hItem; |
| OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); |
| } |
| } else { |
| int oldProc = OS.GetWindowLong (handle, OS.GWL_WNDPROC); |
| OS.SetWindowLong (handle, OS.GWL_WNDPROC, TreeProc); |
| if ((style & SWT.VIRTUAL) != 0) { |
| int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_ROOT, 0); |
| deselect (hItem, tvItem, 0); |
| } else { |
| for (int i=0; i<items.length; i++) { |
| TreeItem item = items [i]; |
| if (item != null) { |
| tvItem.hItem = item.handle; |
| OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); |
| } |
| } |
| } |
| OS.SetWindowLong (handle, OS.GWL_WNDPROC, oldProc); |
| } |
| } |
| |
| void destroyItem (TreeColumn column) { |
| if (hwndHeader == 0) error (SWT.ERROR_ITEM_NOT_REMOVED); |
| int columnCount = OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); |
| int index = 0; |
| while (index < columnCount) { |
| if (columns [index] == column) break; |
| index++; |
| } |
| int [] oldOrder = new int [columnCount]; |
| OS.SendMessage (hwndHeader, OS.HDM_GETORDERARRAY, columnCount, oldOrder); |
| int orderIndex = 0; |
| while (orderIndex < columnCount) { |
| if (oldOrder [orderIndex] == index) break; |
| orderIndex++; |
| } |
| RECT itemRect = new RECT (); |
| OS.SendMessage (hwndHeader, OS.HDM_GETITEMRECT, index, itemRect); |
| if (OS.SendMessage (hwndHeader, OS.HDM_DELETEITEM, index, 0) == 0) { |
| error (SWT.ERROR_ITEM_NOT_REMOVED); |
| } |
| System.arraycopy (columns, index + 1, columns, index, --columnCount - index); |
| columns [columnCount] = null; |
| for (int i=0; i<items.length; i++) { |
| TreeItem item = items [i]; |
| if (item != null) { |
| if (columnCount == 0) { |
| item.strings = null; |
| item.images = null; |
| item.cellBackground = null; |
| item.cellForeground = null; |
| item.cellFont = null; |
| } else { |
| if (item.strings != null) { |
| String [] strings = item.strings; |
| if (index == 0) { |
| item.text = strings [1] != null ? strings [1] : ""; |
| } |
| String [] temp = new String [columnCount]; |
| System.arraycopy (strings, 0, temp, 0, index); |
| System.arraycopy (strings, index + 1, temp, index, columnCount - index); |
| item.strings = temp; |
| } else { |
| if (index == 0) item.text = ""; |
| } |
| if (item.images != null) { |
| Image [] images = item.images; |
| if (index == 0) item.image = images [1]; |
| Image [] temp = new Image [columnCount]; |
| System.arraycopy (images, 0, temp, 0, index); |
| System.arraycopy (images, index + 1, temp, index, columnCount - index); |
| item.images = temp; |
| } else { |
| if (index == 0) item.image = null; |
| } |
| if (item.cellBackground != null) { |
| int [] cellBackground = item.cellBackground; |
| int [] temp = new int [columnCount]; |
| System.arraycopy (cellBackground, 0, temp, 0, index); |
| System.arraycopy (cellBackground, index + 1, temp, index, columnCount - index); |
| item.cellBackground = temp; |
| } |
| if (item.cellForeground != null) { |
| int [] cellForeground = item.cellForeground; |
| int [] temp = new int [columnCount]; |
| System.arraycopy (cellForeground, 0, temp, 0, index); |
| System.arraycopy (cellForeground, index + 1, temp, index, columnCount - index); |
| item.cellForeground = temp; |
| } |
| if (item.cellFont != null) { |
| int [] cellFont = item.cellFont; |
| int [] temp = new int [columnCount]; |
| System.arraycopy (cellFont, 0, temp, 0, index); |
| System.arraycopy (cellFont, index + 1, temp, index, columnCount - index); |
| item.cellFont = temp; |
| } |
| } |
| } |
| } |
| |
| /* |
| * When the last column is deleted, show the horizontal |
| * scroll bar. Otherwise, left align the first column |
| * and redraw the columns to the right. |
| */ |
| if (columnCount == 0) { |
| int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); |
| bits &= ~OS.TVS_NOHSCROLL; |
| OS.SetWindowLong (handle, OS.GWL_STYLE, bits); |
| OS.InvalidateRect (handle, null, true); |
| } else { |
| if (index == 0) { |
| columns [0].style &= ~(SWT.LEFT | SWT.RIGHT | SWT.CENTER); |
| columns [0].style |= SWT.LEFT; |
| HDITEM hdItem = new HDITEM (); |
| hdItem.mask = OS.HDI_FORMAT | OS.HDI_IMAGE; |
| OS.SendMessage (hwndHeader, OS.HDM_GETITEM, index, hdItem); |
| hdItem.fmt &= ~OS.HDF_JUSTIFYMASK; |
| hdItem.fmt |= OS.HDF_LEFT; |
| OS.SendMessage (hwndHeader, OS.HDM_SETITEM, index, hdItem); |
| } |
| RECT rect = new RECT (); |
| OS.GetClientRect (handle, rect); |
| rect.left = itemRect.left; |
| OS.InvalidateRect (handle, rect, true); |
| } |
| setScrollWidth (); |
| updateImageList (); |
| if (columnCount != 0) { |
| int [] newOrder = new int [columnCount]; |
| OS.SendMessage (hwndHeader, OS.HDM_GETORDERARRAY, columnCount, newOrder); |
| TreeColumn [] newColumns = new TreeColumn [columnCount - orderIndex]; |
| for (int i=orderIndex; i<newOrder.length; i++) { |
| newColumns [i - orderIndex] = columns [newOrder [i]]; |
| newColumns [i - orderIndex].updateToolTip (newOrder [i]); |
| } |
| for (int i=0; i<newColumns.length; i++) { |
| if (!newColumns [i].isDisposed ()) { |
| newColumns [i].sendEvent (SWT.Move); |
| } |
| } |
| } |
| |
| /* Remove the tool tip item for the header */ |
| if (headerToolTipHandle != 0) { |
| TOOLINFO lpti = new TOOLINFO (); |
| lpti.cbSize = TOOLINFO.sizeof; |
| lpti.uId = column.id; |
| lpti.hwnd = hwndHeader; |
| OS.SendMessage (headerToolTipHandle, OS.TTM_DELTOOL, 0, lpti); |
| } |
| } |
| |
| void destroyItem (TreeItem item, int hItem) { |
| hFirstIndexOf = hLastIndexOf = 0; |
| /* |
| * Feature in Windows. When an item is removed that is not |
| * visible in the tree because it belongs to a collapsed branch, |
| * Windows redraws the tree causing a flash for each item that |
| * is removed. The fix is to detect whether the item is visible, |
| * force the widget to be fully painted, turn off redraw, remove |
| * the item and validate the damage caused by the removing of |
| * the item. |
| */ |
| int hParent = 0; |
| boolean fixRedraw = false; |
| if (drawCount == 0 && OS.IsWindowVisible (handle)) { |
| RECT rect = new RECT (); |
| rect.left = hItem; |
| fixRedraw = OS.SendMessage (handle, OS.TVM_GETITEMRECT, 0, rect) == 0; |
| } |
| if (fixRedraw) { |
| hParent = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_PARENT, hItem); |
| OS.UpdateWindow (handle); |
| OS.DefWindowProc (handle, OS.WM_SETREDRAW, 0, 0); |
| /* |
| * This code is intentionally commented. |
| */ |
| // OS.SendMessage (handle, OS.WM_SETREDRAW, 0, 0); |
| } |
| if ((style & SWT.MULTI) != 0) { |
| ignoreDeselect = ignoreSelect = lockSelection = true; |
| } |
| OS.SendMessage (handle, OS.TVM_DELETEITEM, 0, hItem); |
| if ((style & SWT.MULTI) != 0) { |
| ignoreDeselect = ignoreSelect = lockSelection = false; |
| } |
| if (fixRedraw) { |
| OS.DefWindowProc (handle, OS.WM_SETREDRAW, 1, 0); |
| /* |
| * This code is intentionally commented. |
| */ |
| // OS.SendMessage (handle, OS.WM_SETREDRAW, 1, 0); |
| OS.ValidateRect (handle, null); |
| /* |
| * If the item that was deleted was the last child of a tree item that |
| * is visible, redraw the parent item to force the +/- to be updated. |
| */ |
| if (OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CHILD, hParent) == 0) { |
| RECT rect = new RECT (); |
| rect.left = hParent; |
| if (OS.SendMessage (handle, OS.TVM_GETITEMRECT, 0, rect) != 0) { |
| OS.InvalidateRect (handle, rect, true); |
| } |
| } |
| } |
| int count = OS.SendMessage (handle, OS.TVM_GETCOUNT, 0, 0); |
| if (count == 0) { |
| if (imageList != null) { |
| OS.SendMessage (handle, OS.TVM_SETIMAGELIST, 0, 0); |
| display.releaseImageList (imageList); |
| } |
| imageList = null; |
| if (hwndParent == 0 && !linesVisible) customDraw = false; |
| items = new TreeItem [4]; |
| } |
| updateScrollBar (); |
| } |
| |
| void enableWidget (boolean enabled) { |
| super.enableWidget (enabled); |
| /* |
| * Feature in Windows. When a tree is given a background color |
| * using TVM_SETBKCOLOR and the tree is disabled, Windows draws |
| * the tree using the background color rather than the disabled |
| * colors. This is different from the table which draws grayed. |
| * The fix is to set the default background color while the tree |
| * is disabled and restore it when enabled. |
| */ |
| if (background != -1) { |
| _setBackgroundPixel (enabled ? background : -1); |
| } |
| if (hwndParent != 0) OS.EnableWindow (hwndParent, enabled); |
| } |
| |
| int findIndex (int hFirstItem, int hItem) { |
| if (hFirstItem == 0) return -1; |
| if (hFirstItem == hFirstIndexOf) { |
| if (hLastIndexOf == hItem) return lastIndexOf; |
| if (hFirstIndexOf == hItem) { |
| hLastIndexOf = hFirstIndexOf; |
| return lastIndexOf = 0; |
| } |
| int hPrevItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_PREVIOUS, hLastIndexOf); |
| if (hPrevItem == hItem) { |
| hLastIndexOf = hPrevItem; |
| return --lastIndexOf; |
| } |
| int hNextItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXT, hLastIndexOf); |
| if (hNextItem == hItem) { |
| hLastIndexOf = hNextItem; |
| return ++lastIndexOf; |
| } |
| int previousIndex = lastIndexOf - 1; |
| while (hPrevItem != 0 && hPrevItem != hItem) { |
| hPrevItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_PREVIOUS, hPrevItem); |
| --previousIndex; |
| } |
| if (hPrevItem == hItem) { |
| hLastIndexOf = hPrevItem; |
| return lastIndexOf = previousIndex; |
| } |
| int nextIndex = lastIndexOf + 1; |
| while (hNextItem != 0 && hNextItem != hItem) { |
| hNextItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXT, hNextItem); |
| nextIndex++; |
| } |
| if (hNextItem == hItem) { |
| hLastIndexOf = hNextItem; |
| return lastIndexOf = nextIndex; |
| } |
| return -1; |
| } |
| int index = 0, hNextItem = hFirstItem; |
| while (hNextItem != 0 && hNextItem != hItem) { |
| hNextItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXT, hNextItem); |
| index++; |
| } |
| if (hNextItem == hItem) { |
| hFirstIndexOf = hFirstItem; |
| hLastIndexOf = hNextItem; |
| return lastIndexOf = index; |
| } |
| return -1; |
| } |
| |
| Widget findItem (int id) { |
| TVITEM tvItem = new TVITEM (); |
| tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_PARAM; |
| tvItem.hItem = id; |
| if (OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem) != 0) { |
| return _getItem (tvItem.hItem, tvItem.lParam); |
| } |
| return null; |
| } |
| |
| int findItem (int hFirstItem, int index) { |
| if (hFirstItem == 0) return 0; |
| if (hFirstItem == hFirstIndexOf) { |
| if (lastIndexOf == index) return hLastIndexOf; |
| if (index == 0) { |
| lastIndexOf = 0; |
| return hLastIndexOf = hFirstIndexOf; |
| } |
| if (lastIndexOf - 1 == index) { |
| --lastIndexOf; |
| return hLastIndexOf = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_PREVIOUS, hLastIndexOf); |
| } |
| if (lastIndexOf + 1 == index) { |
| lastIndexOf++; |
| return hLastIndexOf = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXT, hLastIndexOf); |
| } |
| if (index < lastIndexOf) { |
| int previousIndex = lastIndexOf - 1; |
| int hPrevItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_PREVIOUS, hLastIndexOf); |
| while (hPrevItem != 0 && index < previousIndex) { |
| hPrevItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_PREVIOUS, hPrevItem); |
| --previousIndex; |
| } |
| if (index == previousIndex) { |
| lastIndexOf = previousIndex; |
| return hLastIndexOf = hPrevItem; |
| } |
| } else { |
| int nextIndex = lastIndexOf + 1; |
| int hNextItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXT, hLastIndexOf); |
| while (hNextItem != 0 && nextIndex < index) { |
| hNextItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXT, hNextItem); |
| nextIndex++; |
| } |
| if (index == nextIndex) { |
| lastIndexOf = nextIndex; |
| return hLastIndexOf = hNextItem; |
| } |
| } |
| return 0; |
| } |
| int nextIndex = 0, hNextItem = hFirstItem; |
| while (hNextItem != 0 && nextIndex < index) { |
| hNextItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXT, hNextItem); |
| nextIndex++; |
| } |
| if (index == nextIndex) { |
| lastIndexOf = nextIndex; |
| hFirstIndexOf = hFirstItem; |
| return hLastIndexOf = hNextItem; |
| } |
| return 0; |
| } |
| |
| int getBackgroundPixel () { |
| if (!OS.IsWinCE) return _getBackgroundPixel (); |
| /* |
| * Feature in Windows. When a tree is given a background color |
| * using TVM_SETBKCOLOR and the tree is disabled, Windows draws |
| * the tree using the background color rather than the disabled |
| * colors. This is different from the table which draws grayed. |
| * The fix is to set the default background color while the tree |
| * is disabled and restore it when enabled. |
| */ |
| if (!OS.IsWindowEnabled (handle) && background != -1) return background; |
| return _getBackgroundPixel (); |
| } |
| |
| /* |
| * Not currently used. |
| */ |
| TreeItem getFocusItem () { |
| // checkWidget (); |
| int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0); |
| if (hItem == 0) return null; |
| TVITEM tvItem = new TVITEM (); |
| tvItem.mask = OS.TVIF_PARAM | OS.TVIF_STATE; |
| tvItem.hItem = hItem; |
| OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); |
| return _getItem (tvItem.hItem, tvItem.lParam); |
| } |
| |
| int getForegroundPixel () { |
| if (OS.IsWinCE) return OS.GetSysColor (OS.COLOR_WINDOWTEXT); |
| int pixel = OS.SendMessage (handle, OS.TVM_GETTEXTCOLOR, 0, 0); |
| if (pixel == -1) return OS.GetSysColor (OS.COLOR_WINDOWTEXT); |
| return pixel; |
| } |
| |
| /** |
| * Returns the width in pixels of a grid line. |
| * |
| * @return the width of a grid line in pixels |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.1 |
| */ |
| public int getGridLineWidth () { |
| checkWidget (); |
| return GRID_WIDTH; |
| } |
| |
| /** |
| * Returns the height of the receiver's header |
| * |
| * @return the height of the header or zero if the header is not visible |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.1 |
| */ |
| public int getHeaderHeight () { |
| checkWidget (); |
| if (hwndHeader == 0) return 0; |
| RECT rect = new RECT (); |
| OS.GetWindowRect (hwndHeader, rect); |
| return rect.bottom - rect.top; |
| } |
| |
| /** |
| * Returns <code>true</code> if the receiver's header is visible, |
| * and <code>false</code> otherwise. |
| * <p> |
| * If one of the receiver's ancestors is not visible or some |
| * other condition makes the receiver not visible, this method |
| * may still indicate that it is considered visible even though |
| * it may not actually be showing. |
| * </p> |
| * |
| * @return the receiver's header's visibility state |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.1 |
| */ |
| public boolean getHeaderVisible () { |
| checkWidget (); |
| if (hwndHeader == 0) return false; |
| int bits = OS.GetWindowLong (hwndHeader, OS.GWL_STYLE); |
| return (bits & OS.WS_VISIBLE) != 0; |
| } |
| |
| Point getImageSize () { |
| if (imageList != null) return imageList.getImageSize (); |
| return new Point (0, getItemHeight ()); |
| } |
| |
| /** |
| * Returns the column at the given, zero-relative index in the |
| * receiver. Throws an exception if the index is out of range. |
| * If no <code>TreeColumn</code>s were created by the programmer, |
| * this method will throw <code>ERROR_INVALID_RANGE</code> despite |
| * the fact that a single column of data may be visible in the tree. |
| * This occurs when the programmer uses the tree like a list, adding |
| * items but never creating a column. |
| * |
| * @param index the index of the column to return |
| * @return the column at the given index |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.1 |
| */ |
| public TreeColumn getColumn (int index) { |
| checkWidget (); |
| if (hwndHeader == 0) error (SWT.ERROR_INVALID_RANGE); |
| int count = OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); |
| if (!(0 <= index && index < count)) error (SWT.ERROR_INVALID_RANGE); |
| return columns [index]; |
| } |
| |
| /** |
| * Returns the number of columns contained in the receiver. |
| * If no <code>TreeColumn</code>s were created by the programmer, |
| * this value is zero, despite the fact that visually, one column |
| * of items may be visible. This occurs when the programmer uses |
| * the tree like a list, adding items but never creating a column. |
| * |
| * @return the number of columns |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.1 |
| */ |
| public int getColumnCount () { |
| checkWidget (); |
| if (hwndHeader == 0) return 0; |
| return OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); |
| } |
| |
| /** |
| * Returns an array of zero-relative integers that map |
| * the creation order of the receiver's items to the |
| * order in which they are currently being displayed. |
| * <p> |
| * Specifically, the indices of the returned array represent |
| * the current visual order of the items, and the contents |
| * of the array represent the creation order of the items. |
| * </p><p> |
| * Note: This is not the actual structure used by the receiver |
| * to maintain its list of items, so modifying the array will |
| * not affect the receiver. |
| * </p> |
| * |
| * @return the current visual order of the receiver's items |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see Tree#setColumnOrder(int[]) |
| * @see TreeColumn#getMoveable() |
| * @see TreeColumn#setMoveable(boolean) |
| * @see SWT#Move |
| * |
| * @since 3.2 |
| */ |
| public int[] getColumnOrder () { |
| checkWidget (); |
| if (hwndHeader == 0) return new int [0]; |
| int count = OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0 ); |
| int [] order = new int [count]; |
| OS.SendMessage (hwndHeader, OS.HDM_GETORDERARRAY, count, order); |
| return order; |
| } |
| |
| /** |
| * Returns an array of <code>TreeColumn</code>s which are the |
| * columns in the receiver. If no <code>TreeColumn</code>s were |
| * created by the programmer, the array is empty, despite the fact |
| * that visually, one column of items may be visible. This occurs |
| * when the programmer uses the tree like a list, adding items but |
| * never creating a column. |
| * <p> |
| * Note: This is not the actual structure used by the receiver |
| * to maintain its list of items, so modifying the array will |
| * not affect the receiver. |
| * </p> |
| * |
| * @return the items in the receiver |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.1 |
| */ |
| public TreeColumn [] getColumns () { |
| checkWidget (); |
| if (hwndHeader == 0) return new TreeColumn [0]; |
| int count = OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); |
| TreeColumn [] result = new TreeColumn [count]; |
| System.arraycopy (columns, 0, result, 0, count); |
| return result; |
| } |
| |
| /** |
| * Returns the item at the given, zero-relative index in the |
| * receiver. Throws an exception if the index is out of range. |
| * |
| * @param index the index of the item to return |
| * @return the item at the given index |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.1 |
| */ |
| public TreeItem getItem (int index) { |
| checkWidget (); |
| if (index < 0) error (SWT.ERROR_INVALID_RANGE); |
| int hFirstItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_ROOT, 0); |
| if (hFirstItem == 0) error (SWT.ERROR_INVALID_RANGE); |
| int hItem = findItem (hFirstItem, index); |
| if (hItem == 0) error (SWT.ERROR_INVALID_RANGE); |
| TVITEM tvItem = new TVITEM (); |
| tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_PARAM; |
| tvItem.hItem = hItem; |
| OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); |
| return _getItem (hItem, tvItem.lParam); |
| } |
| |
| /** |
| * Returns the item at the given point in the receiver |
| * or null if no such item exists. The point is in the |
| * coordinate system of the receiver. |
| * |
| * @param point the point used to locate the item |
| * @return the item at the given point |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the point is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public TreeItem getItem (Point point) { |
| checkWidget (); |
| if (point == null) error (SWT.ERROR_NULL_ARGUMENT); |
| TVHITTESTINFO lpht = new TVHITTESTINFO (); |
| lpht.x = point.x; |
| lpht.y = point.y; |
| OS.SendMessage (handle, OS.TVM_HITTEST, 0, lpht); |
| if (lpht.hItem != 0) { |
| int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); |
| if ((bits & OS.TVS_FULLROWSELECT) != 0 || (lpht.flags & OS.TVHT_ONITEM) != 0) { |
| TVITEM tvItem = new TVITEM (); |
| tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_PARAM; |
| tvItem.hItem = lpht.hItem; |
| OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); |
| return _getItem (lpht.hItem, tvItem.lParam); |
| } |
| } |
| return null; |
| } |
| |
| /** |
| * Returns the number of items contained in the receiver |
| * that are direct item children of the receiver. The |
| * number that is returned is the number of roots in the |
| * tree. |
| * |
| * @return the number of items |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public int getItemCount () { |
| checkWidget (); |
| int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_ROOT, 0); |
| if (hItem == 0) return 0; |
| return getItemCount (hItem); |
| } |
| |
| int getItemCount (int hItem) { |
| int count = 0; |
| if (hItem == hFirstIndexOf) { |
| hItem = hLastIndexOf; |
| count = lastIndexOf; |
| } |
| while (hItem != 0) { |
| hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXT, hItem); |
| count++; |
| } |
| return count; |
| } |
| |
| /** |
| * Returns the height of the area which would be used to |
| * display <em>one</em> of the items in the tree. |
| * |
| * @return the height of one item |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public int getItemHeight () { |
| checkWidget (); |
| return OS.SendMessage (handle, OS.TVM_GETITEMHEIGHT, 0, 0); |
| } |
| |
| /** |
| * Returns a (possibly empty) array of items contained in the |
| * receiver that are direct item children of the receiver. These |
| * are the roots of the tree. |
| * <p> |
| * Note: This is not the actual structure used by the receiver |
| * to maintain its list of items, so modifying the array will |
| * not affect the receiver. |
| * </p> |
| * |
| * @return the items |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public TreeItem [] getItems () { |
| checkWidget (); |
| int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_ROOT, 0); |
| if (hItem == 0) return new TreeItem [0]; |
| return getItems (hItem); |
| } |
| |
| TreeItem [] getItems (int hTreeItem) { |
| int count = 0, hItem = hTreeItem; |
| while (hItem != 0) { |
| hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXT, hItem); |
| count++; |
| } |
| int index = 0; |
| TreeItem [] result = new TreeItem [count]; |
| TVITEM tvItem = new TVITEM (); |
| tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_PARAM; |
| tvItem.hItem = hTreeItem; |
| /* |
| * Feature in Windows. In some cases an expand or collapse message |
| * can occurs from within TVM_DELETEITEM. When this happens, the item |
| * being destroyed has been removed from the list of items but has not |
| * been deleted from the tree. The fix is to check for null items and |
| * remove them from the list. |
| */ |
| while (tvItem.hItem != 0) { |
| OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); |
| TreeItem item = _getItem (tvItem.hItem, tvItem.lParam); |
| if (item != null) result [index++] = item; |
| tvItem.hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXT, tvItem.hItem); |
| } |
| if (index != count) { |
| TreeItem [] newResult = new TreeItem [index]; |
| System.arraycopy (result, 0, newResult, 0, index); |
| result = newResult; |
| } |
| return result; |
| } |
| |
| /** |
| * Returns <code>true</code> if the receiver's lines are visible, |
| * and <code>false</code> otherwise. |
| * <p> |
| * If one of the receiver's ancestors is not visible or some |
| * other condition makes the receiver not visible, this method |
| * may still indicate that it is considered visible even though |
| * it may not actually be showing. |
| * </p> |
| * |
| * @return the visibility state of the lines |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.1 |
| */ |
| public boolean getLinesVisible () { |
| checkWidget (); |
| return linesVisible; |
| } |
| |
| int getNextSelection (int hItem) { |
| while (hItem != 0) { |
| int state = OS.SendMessage (handle, OS.TVM_GETITEMSTATE, hItem, OS.TVIS_SELECTED); |
| if ((state & OS.TVIS_SELECTED) != 0) return hItem; |
| int hFirstItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CHILD, hItem); |
| int hSelected = getNextSelection (hFirstItem); |
| if (hSelected != 0) return hSelected; |
| hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXT, hItem); |
| } |
| return 0; |
| } |
| |
| /** |
| * Returns the receiver's parent item, which must be a |
| * <code>TreeItem</code> or null when the receiver is a |
| * root. |
| * |
| * @return the receiver's parent item |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public TreeItem getParentItem () { |
| checkWidget (); |
| return null; |
| } |
| |
| int getSelection (int hItem, TVITEM tvItem, TreeItem [] selection, int count) { |
| int result = 0; |
| while (hItem != 0) { |
| if (tvItem != null && selection != null && count < selection.length) { |
| tvItem.hItem = hItem; |
| OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); |
| if ((tvItem.state & OS.TVIS_SELECTED) != 0) { |
| selection [count++] = _getItem (hItem, tvItem.lParam); |
| result++; |
| } |
| } else { |
| int state = OS.SendMessage (handle, OS.TVM_GETITEMSTATE, hItem, OS.TVIS_SELECTED); |
| if ((state & OS.TVIS_SELECTED) != 0) result++; |
| } |
| int hFirstItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CHILD, hItem); |
| result += getSelection (hFirstItem, tvItem, selection, count); |
| hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXT, hItem); |
| } |
| return result; |
| } |
| |
| /** |
| * Returns an array of <code>TreeItem</code>s that are currently |
| * selected in the receiver. The order of the items is unspecified. |
| * An empty array indicates that no items are selected. |
| * <p> |
| * Note: This is not the actual structure used by the receiver |
| * to maintain its selection, so modifying the array will |
| * not affect the receiver. |
| * </p> |
| * @return an array representing the selection |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public TreeItem [] getSelection () { |
| checkWidget (); |
| if ((style & SWT.SINGLE) != 0) { |
| int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0); |
| if (hItem == 0) return new TreeItem [0]; |
| TVITEM tvItem = new TVITEM (); |
| tvItem.mask = OS.TVIF_PARAM | OS.TVIF_STATE; |
| tvItem.hItem = hItem; |
| OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); |
| if ((tvItem.state & OS.TVIS_SELECTED) == 0) return new TreeItem [0]; |
| return new TreeItem [] {_getItem (tvItem.hItem, tvItem.lParam)}; |
| } |
| int count = 0; |
| TreeItem [] guess = new TreeItem [8]; |
| TVITEM tvItem = new TVITEM (); |
| tvItem.mask = OS.TVIF_PARAM | OS.TVIF_STATE; |
| int oldProc = OS.GetWindowLong (handle, OS.GWL_WNDPROC); |
| OS.SetWindowLong (handle, OS.GWL_WNDPROC, TreeProc); |
| if ((style & SWT.VIRTUAL) != 0) { |
| int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_ROOT, 0); |
| count = getSelection (hItem, tvItem, guess, 0); |
| } else { |
| for (int i=0; i<items.length; i++) { |
| TreeItem item = items [i]; |
| if (item != null) { |
| tvItem.hItem = item.handle; |
| OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); |
| if ((tvItem.state & OS.TVIS_SELECTED) != 0) { |
| if (count < guess.length) guess [count] = item; |
| count++; |
| } |
| } |
| } |
| } |
| OS.SetWindowLong (handle, OS.GWL_WNDPROC, oldProc); |
| if (count == 0) return new TreeItem [0]; |
| if (count == guess.length) return guess; |
| TreeItem [] result = new TreeItem [count]; |
| if (count < guess.length) { |
| System.arraycopy (guess, 0, result, 0, count); |
| return result; |
| } |
| OS.SetWindowLong (handle, OS.GWL_WNDPROC, TreeProc); |
| if ((style & SWT.VIRTUAL) != 0) { |
| int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_ROOT, 0); |
| getSelection (hItem, tvItem, result, 0); |
| } else { |
| int index = 0; |
| for (int i=0; i<items.length; i++) { |
| TreeItem item = items [i]; |
| if (item != null) { |
| tvItem.hItem = item.handle; |
| OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); |
| if ((tvItem.state & OS.TVIS_SELECTED) != 0) { |
| result [index++] = item; |
| } |
| } |
| } |
| } |
| OS.SetWindowLong (handle, OS.GWL_WNDPROC, oldProc); |
| return result; |
| } |
| |
| /** |
| * Returns the number of selected items contained in the receiver. |
| * |
| * @return the number of selected items |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public int getSelectionCount () { |
| checkWidget (); |
| if ((style & SWT.SINGLE) != 0) { |
| int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0); |
| if (hItem == 0) return 0; |
| TVITEM tvItem = new TVITEM (); |
| tvItem.mask = OS.TVIF_STATE; |
| tvItem.hItem = hItem; |
| OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); |
| if ((tvItem.state & OS.TVIS_SELECTED) == 0) return 0; |
| return 1; |
| } |
| int count = 0; |
| TVITEM tvItem = new TVITEM (); |
| tvItem.mask = OS.TVIF_PARAM | OS.TVIF_STATE; |
| int oldProc = OS.GetWindowLong (handle, OS.GWL_WNDPROC); |
| OS.SetWindowLong (handle, OS.GWL_WNDPROC, TreeProc); |
| if ((style & SWT.VIRTUAL) != 0) { |
| int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_ROOT, 0); |
| count = getSelection (hItem, tvItem, null, 0); |
| } else { |
| for (int i=0; i<items.length; i++) { |
| TreeItem item = items [i]; |
| if (item != null) { |
| tvItem.hItem = item.handle; |
| OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); |
| if ((tvItem.state & OS.TVIS_SELECTED) != 0) count++; |
| } |
| } |
| } |
| OS.SetWindowLong (handle, OS.GWL_WNDPROC, oldProc); |
| return count; |
| } |
| |
| /** |
| * Returns the column which shows the sort indicator for |
| * the receiver. The value may be null if no column shows |
| * the sort indicator. |
| * |
| * @return the sort indicator |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see #setSortColumn(TreeColumn) |
| * |
| * @since 3.2 |
| */ |
| public TreeColumn getSortColumn () { |
| checkWidget (); |
| return sortColumn; |
| } |
| |
| /** |
| * Returns the direction of the sort indicator for the receiver. |
| * The value will be one of <code>UP</code>, <code>DOWN</code> |
| * or <code>NONE</code>. |
| * |
| * @return the sort direction |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see #setSortDirection(int) |
| * |
| * @since 3.2 |
| */ |
| public int getSortDirection () { |
| checkWidget (); |
| return sortDirection; |
| } |
| |
| /** |
| * Returns the item which is currently at the top of the receiver. |
| * This item can change when items are expanded, collapsed, scrolled |
| * or new items are added or removed. |
| * |
| * @return the item at the top of the receiver |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 2.1 |
| */ |
| public TreeItem getTopItem () { |
| checkWidget (); |
| int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_FIRSTVISIBLE, 0); |
| if (hItem == 0) return null; |
| TVITEM tvItem = new TVITEM (); |
| tvItem.mask = OS.TVIF_PARAM; |
| tvItem.hItem = hItem; |
| if (OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem) != 0) { |
| return _getItem (hItem, tvItem.lParam); |
| } |
| return null; |
| } |
| |
| int imageIndex (Image image, int index) { |
| if (image == null) return OS.I_IMAGENONE; |
| if (imageList == null) { |
| Rectangle bounds = image.getBounds (); |
| imageList = display.getImageList (style & SWT.RIGHT_TO_LEFT, bounds.width, bounds.height); |
| } |
| int imageIndex = imageList.indexOf (image); |
| if (imageIndex == -1) imageIndex = imageList.add (image); |
| if (hwndHeader == 0 || OS.SendMessage (hwndHeader, OS.HDM_ORDERTOINDEX, 0, 0) == index) { |
| int hImageList = imageList.getHandle (); |
| int hOldImageList = OS.SendMessage (handle, OS.TVM_GETIMAGELIST, OS.TVSIL_NORMAL, 0); |
| if (hOldImageList != hImageList) { |
| OS.SendMessage (handle, OS.TVM_SETIMAGELIST, OS.TVSIL_NORMAL, hImageList); |
| updateScrollBar (); |
| } |
| } |
| return imageIndex; |
| } |
| |
| int imageIndexHeader (Image image) { |
| if (image == null) return OS.I_IMAGENONE; |
| if (headerImageList == null) { |
| Rectangle bounds = image.getBounds (); |
| headerImageList = display.getImageList (style & SWT.RIGHT_TO_LEFT, bounds.width, bounds.height); |
| int index = headerImageList.indexOf (image); |
| if (index == -1) index = headerImageList.add (image); |
| int hImageList = headerImageList.getHandle (); |
| if (hwndHeader != 0) { |
| OS.SendMessage (hwndHeader, OS.HDM_SETIMAGELIST, 0, hImageList); |
| } |
| updateScrollBar (); |
| return index; |
| } |
| int index = headerImageList.indexOf (image); |
| if (index != -1) return index; |
| return headerImageList.add (image); |
| } |
| |
| /** |
| * Searches the receiver's list starting at the first column |
| * (index 0) until a column is found that is equal to the |
| * argument, and returns the index of that column. If no column |
| * is found, returns -1. |
| * |
| * @param column the search column |
| * @return the index of the column |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the string is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.1 |
| */ |
| public int indexOf (TreeColumn column) { |
| checkWidget (); |
| if (column == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (column.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT); |
| if (hwndHeader == 0) return -1; |
| int count = OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); |
| for (int i=0; i<count; i++) { |
| if (columns [i] == column) return i; |
| } |
| return -1; |
| } |
| |
| /** |
| * Searches the receiver's list starting at the first item |
| * (index 0) until an item is found that is equal to the |
| * argument, and returns the index of that item. If no item |
| * is found, returns -1. |
| * |
| * @param item the search item |
| * @return the index of the item |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the tool item is null</li> |
| * <li>ERROR_INVALID_ARGUMENT - if the tool item has been disposed</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.1 |
| */ |
| public int indexOf (TreeItem item) { |
| checkWidget (); |
| if (item == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (item.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT); |
| int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_ROOT, 0); |
| return hItem == 0 ? -1 : findIndex (hItem, item.handle); |
| } |
| |
| void register () { |
| super.register (); |
| if (hwndParent != 0) display.addControl (hwndParent, this); |
| if (hwndHeader != 0) display.addControl (hwndHeader, this); |
| } |
| |
| void releaseItem (int hItem, TVITEM tvItem, boolean release) { |
| if (hItem == hAnchor) hAnchor = 0; |
| if (hItem == hInsert) hInsert = 0; |
| tvItem.hItem = hItem; |
| if (OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem) != 0) { |
| if (tvItem.lParam != -1) { |
| if (tvItem.lParam < lastID) lastID = tvItem.lParam; |
| if (release) { |
| TreeItem item = items [tvItem.lParam]; |
| if (item != null) item.release (false); |
| } |
| items [tvItem.lParam] = null; |
| } |
| } |
| } |
| |
| void releaseItems (int hItem, TVITEM tvItem) { |
| hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CHILD, hItem); |
| while (hItem != 0) { |
| releaseItems (hItem, tvItem); |
| releaseItem (hItem, tvItem, true); |
| hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXT, hItem); |
| } |
| } |
| |
| void releaseHandle () { |
| super.releaseHandle (); |
| hwndParent = hwndHeader = 0; |
| } |
| |
| void releaseChildren (boolean destroy) { |
| if (items != null) { |
| for (int i=0; i<items.length; i++) { |
| TreeItem item = items [i]; |
| if (item != null && !item.isDisposed ()) { |
| item.release (false); |
| } |
| } |
| items = null; |
| } |
| if (columns != null) { |
| for (int i=0; i<columns.length; i++) { |
| TreeColumn column = columns [i]; |
| if (column != null && !column.isDisposed ()) { |
| column.release (false); |
| } |
| } |
| columns = null; |
| } |
| super.releaseChildren (destroy); |
| } |
| |
| void releaseWidget () { |
| super.releaseWidget (); |
| /* |
| * Feature in Windows. For some reason, when TVM_GETIMAGELIST |
| * or TVM_SETIMAGELIST is sent, the tree issues NM_CUSTOMDRAW |
| * messages. This behavior is unwanted when the tree is being |
| * disposed. The fix is to ingore NM_CUSTOMDRAW messages by |
| * clearing the custom draw flag. |
| * |
| * NOTE: This only happens on Windows XP. |
| */ |
| customDraw = false; |
| if (imageList != null) { |
| OS.SendMessage (handle, OS.TVM_SETIMAGELIST, OS.TVSIL_NORMAL, 0); |
| display.releaseImageList (imageList); |
| } |
| if (headerImageList != null) { |
| if (hwndHeader != 0) { |
| OS.SendMessage (hwndHeader, OS.HDM_SETIMAGELIST, 0, 0); |
| } |
| display.releaseImageList (headerImageList); |
| } |
| imageList = headerImageList = null; |
| int hStateList = OS.SendMessage (handle, OS.TVM_GETIMAGELIST, OS.TVSIL_STATE, 0); |
| OS.SendMessage (handle, OS.TVM_SETIMAGELIST, OS.TVSIL_STATE, 0); |
| if (hStateList != 0) OS.ImageList_Destroy (hStateList); |
| if (headerToolTipHandle != 0) OS.DestroyWindow (headerToolTipHandle); |
| headerToolTipHandle = 0; |
| } |
| |
| /** |
| * Removes all of the items from the receiver. |
| * <p> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void removeAll () { |
| checkWidget (); |
| for (int i=0; i<items.length; i++) { |
| TreeItem item = items [i]; |
| if (item != null && !item.isDisposed ()) { |
| item.release (false); |
| } |
| } |
| ignoreDeselect = ignoreSelect = true; |
| boolean redraw = drawCount == 0 && OS.IsWindowVisible (handle); |
| if (redraw) { |
| OS.DefWindowProc (handle, OS.WM_SETREDRAW, 0, 0); |
| /* |
| * This code is intentionally commented. |
| */ |
| // OS.SendMessage (handle, OS.WM_SETREDRAW, 0, 0); |
| } |
| int result = OS.SendMessage (handle, OS.TVM_DELETEITEM, 0, OS.TVI_ROOT); |
| if (redraw) { |
| OS.DefWindowProc (handle, OS.WM_SETREDRAW, 1, 0); |
| /* |
| * This code is intentionally commented. |
| */ |
| // OS.SendMessage (handle, OS.WM_SETREDRAW, 1, 0); |
| OS.InvalidateRect (handle, null, true); |
| } |
| ignoreDeselect = ignoreSelect = false; |
| if (result == 0) error (SWT.ERROR_ITEM_NOT_REMOVED); |
| if (imageList != null) { |
| OS.SendMessage (handle, OS.TVM_SETIMAGELIST, 0, 0); |
| display.releaseImageList (imageList); |
| } |
| imageList = null; |
| if (hwndParent == 0 && !linesVisible) customDraw = false; |
| hAnchor = hInsert = hFirstIndexOf = hLastIndexOf = 0; |
| items = new TreeItem [4]; |
| updateScrollBar (); |
| } |
| |
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when the receiver's selection changes. |
| * |
| * @param listener the listener which should no longer be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see SelectionListener |
| * @see #addSelectionListener |
| */ |
| public void removeSelectionListener (SelectionListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| eventTable.unhook (SWT.Selection, listener); |
| eventTable.unhook (SWT.DefaultSelection, listener); |
| } |
| |
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when items in the receiver are expanded or collapsed.. |
| * |
| * @param listener the listener which should no longer be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see TreeListener |
| * @see #addTreeListener |
| */ |
| public void removeTreeListener(TreeListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (eventTable == null) return; |
| eventTable.unhook (SWT.Expand, listener); |
| eventTable.unhook (SWT.Collapse, listener); |
| } |
| |
| /** |
| * Display a mark indicating the point at which an item will be inserted. |
| * The drop insert item has a visual hint to show where a dragged item |
| * will be inserted when dropped on the tree. |
| * |
| * @param item the insert item. Null will clear the insertion mark. |
| * @param before true places the insert mark above 'item'. false places |
| * the insert mark below 'item'. |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the item has been disposed</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setInsertMark (TreeItem item, boolean before) { |
| checkWidget (); |
| int hItem = 0; |
| if (item != null) { |
| if (item.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT); |
| hItem = item.handle; |
| } |
| hInsert = hItem; |
| insertAfter = !before; |
| OS.SendMessage (handle, OS.TVM_SETINSERTMARK, insertAfter ? 1 : 0, hInsert); |
| } |
| |
| /** |
| * Sets the number of items contained in the receiver. |
| * |
| * @param count the number of items |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.2 |
| */ |
| public void setItemCount (int count) { |
| checkWidget (); |
| count = Math.max (0, count); |
| int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_ROOT, 0); |
| setItemCount (count, OS.TVGN_ROOT, hItem); |
| } |
| |
| void setItemCount (int count, int hParent, int hItem) { |
| boolean redraw = false; |
| if (OS.SendMessage (handle, OS.TVM_GETCOUNT, 0, 0) == 0) { |
| redraw = drawCount == 0 && OS.IsWindowVisible (handle); |
| if (redraw) OS.SendMessage (handle, OS.WM_SETREDRAW, 0, 0); |
| } |
| int itemCount = 0; |
| while (hItem != 0 && itemCount < count) { |
| hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXT, hItem); |
| itemCount++; |
| } |
| if (hItem != 0) { |
| TVITEM tvItem = new TVITEM (); |
| tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_PARAM; |
| hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_PREVIOUS, hItem); |
| tvItem.hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXT, hItem); |
| while (tvItem.hItem != 0) { |
| OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); |
| TreeItem item = tvItem.lParam != -1 ? items [tvItem.lParam] : null; |
| if (item != null && !item.isDisposed ()) { |
| item.dispose (); |
| } else { |
| releaseItem (tvItem.hItem, tvItem, false); |
| destroyItem (null, tvItem.hItem); |
| } |
| tvItem.hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXT, hItem); |
| } |
| } |
| if ((style & SWT.VIRTUAL) != 0) { |
| for (int i=itemCount; i<count; i++) { |
| createItem (null, hParent, OS.TVI_LAST, 0); |
| } |
| } else { |
| shrink = true; |
| int extra = Math.max (4, (count + 3) / 4 * 4); |
| TreeItem [] newItems = new TreeItem [items.length + extra]; |
| System.arraycopy (items, 0, newItems, 0, items.length); |
| items = newItems; |
| for (int i=itemCount; i<count; i++) { |
| new TreeItem (this, SWT.NONE, hParent, OS.TVI_LAST, 0); |
| } |
| } |
| if (redraw) { |
| OS.SendMessage (handle, OS.WM_SETREDRAW, 1, 0); |
| OS.InvalidateRect (handle, null, true); |
| } |
| } |
| |
| /** |
| * Marks the receiver's lines as visible if the argument is <code>true</code>, |
| * and marks it invisible otherwise. |
| * <p> |
| * If one of the receiver's ancestors is not visible or some |
| * other condition makes the receiver not visible, marking |
| * it visible may not actually cause it to be displayed. |
| * </p> |
| * |
| * @param show the new visibility state |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.1 |
| */ |
| public void setLinesVisible (boolean show) { |
| checkWidget (); |
| if (linesVisible == show) return; |
| linesVisible = show; |
| if (hwndParent == 0 && linesVisible) customDraw = true; |
| OS.InvalidateRect (handle, null, true); |
| } |
| |
| int scrolledHandle () { |
| if (hwndHeader == 0) return handle; |
| int count = OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); |
| return count == 0 ? handle : hwndParent; |
| } |
| |
| void select (int hItem, TVITEM tvItem) { |
| while (hItem != 0) { |
| tvItem.hItem = hItem; |
| OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); |
| int hFirstItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CHILD, hItem); |
| select (hFirstItem, tvItem); |
| hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXT, hItem); |
| } |
| } |
| |
| /** |
| * Selects all of the items in the receiver. |
| * <p> |
| * If the receiver is single-select, do nothing. |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void selectAll () { |
| checkWidget (); |
| if ((style & SWT.SINGLE) != 0) return; |
| TVITEM tvItem = new TVITEM (); |
| tvItem.mask = OS.TVIF_STATE; |
| tvItem.state = OS.TVIS_SELECTED; |
| tvItem.stateMask = OS.TVIS_SELECTED; |
| int oldProc = OS.GetWindowLong (handle, OS.GWL_WNDPROC); |
| OS.SetWindowLong (handle, OS.GWL_WNDPROC, TreeProc); |
| if ((style & SWT.VIRTUAL) != 0) { |
| int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_ROOT, 0); |
| select (hItem, tvItem); |
| } else { |
| for (int i=0; i<items.length; i++) { |
| TreeItem item = items [i]; |
| if (item != null) { |
| tvItem.hItem = item.handle; |
| OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); |
| } |
| } |
| } |
| OS.SetWindowLong (handle, OS.GWL_WNDPROC, oldProc); |
| } |
| |
| void setBackgroundPixel (int pixel) { |
| if (background == pixel) return; |
| background = pixel; |
| /* |
| * Feature in Windows. When a tree is given a background color |
| * using TVM_SETBKCOLOR and the tree is disabled, Windows draws |
| * the tree using the background color rather than the disabled |
| * colors. This is different from the table which draws grayed. |
| * The fix is to set the default background color while the tree |
| * is disabled and restore it when enabled. |
| */ |
| if (OS.IsWindowEnabled (handle)) _setBackgroundPixel (pixel); |
| } |
| |
| void setBounds (int x, int y, int width, int height, int flags) { |
| /* |
| * Ensure that the selection is visible when the tree is resized |
| * from a zero size to a size that can show the selection. |
| */ |
| boolean fixSelection = false; |
| if ((flags & OS.SWP_NOSIZE) == 0 && (width != 0 || height != 0)) { |
| if (OS.SendMessage (handle, OS.TVM_GETVISIBLECOUNT, 0, 0) == 0) { |
| fixSelection = true; |
| } |
| } |
| super.setBounds (x, y, width, height, flags); |
| if (fixSelection) { |
| int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0); |
| if (hItem != 0) showItem (hItem); |
| } |
| } |
| |
| void setCursor () { |
| /* |
| * Bug in Windows. Under certain circumstances, when WM_SETCURSOR |
| * is sent from SendMessage(), Windows GP's in the window proc for |
| * the tree. The fix is to avoid calling the tree window proc and |
| * set the cursor for the tree outside of WM_SETCURSOR. |
| * |
| * NOTE: This code assumes that the default cursor for the tree |
| * is IDC_ARROW. |
| */ |
| Cursor cursor = findCursor (); |
| int hCursor = cursor == null ? OS.LoadCursor (0, OS.IDC_ARROW) : cursor.handle; |
| OS.SetCursor (hCursor); |
| } |
| |
| /** |
| * Sets the order that the items in the receiver should |
| * be displayed in to the given argument which is described |
| * in terms of the zero-relative ordering of when the items |
| * were added. |
| * |
| * @param order the new order to display the items |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the item order is null</li> |
| * <li>ERROR_INVALID_ARGUMENT - if the item order is not the same length as the number of items</li> |
| * </ul> |
| * |
| * @see Tree#getColumnOrder() |
| * @see TreeColumn#getMoveable() |
| * @see TreeColumn#setMoveable(boolean) |
| * @see SWT#Move |
| * |
| * @since 3.2 |
| */ |
| public void setColumnOrder (int [] order) { |
| checkWidget (); |
| if (order == null) error (SWT.ERROR_NULL_ARGUMENT); |
| int count = 0; |
| if (hwndHeader != 0) { |
| count = OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); |
| } |
| if (count == 0) { |
| if (order.length != 0) error (SWT.ERROR_INVALID_ARGUMENT); |
| return; |
| } |
| if (order.length != count) error (SWT.ERROR_INVALID_ARGUMENT); |
| int [] oldOrder = new int [count]; |
| OS.SendMessage (hwndHeader, OS.HDM_GETORDERARRAY, count, oldOrder); |
| boolean reorder = false; |
| boolean [] seen = new boolean [count]; |
| for (int i=0; i<order.length; i++) { |
| int index = order [i]; |
| if (index < 0 || index >= count) error (SWT.ERROR_INVALID_RANGE); |
| if (seen [index]) error (SWT.ERROR_INVALID_ARGUMENT); |
| seen [index] = true; |
| if (index != oldOrder [i]) reorder = true; |
| } |
| if (reorder) { |
| RECT [] oldRects = new RECT [count]; |
| for (int i=0; i<count; i++) { |
| oldRects [i] = new RECT (); |
| OS.SendMessage (hwndHeader, OS.HDM_GETITEMRECT, i, oldRects [i]); |
| } |
| OS.SendMessage (hwndHeader, OS.HDM_SETORDERARRAY, order.length, order); |
| OS.InvalidateRect (handle, null, true); |
| updateImageList (); |
| TreeColumn [] newColumns = new TreeColumn [count]; |
| System.arraycopy (columns, 0, newColumns, 0, count); |
| RECT newRect = new RECT (); |
| for (int i=0; i<count; i++) { |
| TreeColumn column = newColumns [i]; |
| if (!column.isDisposed ()) { |
| OS.SendMessage (hwndHeader, OS.HDM_GETITEMRECT, i, newRect); |
| if (newRect.left != oldRects [i].left) { |
| column.updateToolTip (i); |
| column.sendEvent (SWT.Move); |
| } |
| } |
| } |
| } |
| } |
| |
| void setCheckboxImageList () { |
| if ((style & SWT.CHECK) == 0) return; |
| int count = 5; |
| int height = OS.SendMessage (handle, OS.TVM_GETITEMHEIGHT, 0, 0), width = height; |
| int flags = ImageList.COLOR_FLAGS; |
| if ((style & SWT.RIGHT_TO_LEFT) != 0) flags |= OS.ILC_MIRROR; |
| if (OS.COMCTL32_MAJOR < 6 || !OS.IsAppThemed ()) flags |= OS.ILC_MASK; |
| int hStateList = OS.ImageList_Create (width, height, flags, count, count); |
| int hDC = OS.GetDC (handle); |
| int memDC = OS.CreateCompatibleDC (hDC); |
| int hBitmap = OS.CreateCompatibleBitmap (hDC, width * count, height); |
| int hOldBitmap = OS.SelectObject (memDC, hBitmap); |
| RECT rect = new RECT (); |
| OS.SetRect (rect, 0, 0, width * count, height); |
| int clrBackground = _getBackgroundPixel (); |
| int hBrush = OS.CreateSolidBrush (clrBackground); |
| OS.FillRect (memDC, rect, hBrush); |
| OS.DeleteObject (hBrush); |
| int oldFont = OS.SelectObject (hDC, defaultFont ()); |
| TEXTMETRIC tm = OS.IsUnicode ? (TEXTMETRIC) new TEXTMETRICW () : new TEXTMETRICA (); |
| OS.GetTextMetrics (hDC, tm); |
| OS.SelectObject (hDC, oldFont); |
| int itemWidth = Math.min (tm.tmHeight, width); |
| int itemHeight = Math.min (tm.tmHeight, height); |
| int left = (width - itemWidth) / 2, top = (height - itemHeight) / 2 + 1; |
| OS.SetRect (rect, left + width, top, left + width + itemWidth, top + itemHeight); |
| if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) { |
| int hTheme = OS.OpenThemeData (handle, BUTTON); |
| OS.DrawThemeBackground (hTheme, memDC, OS.BP_CHECKBOX, OS.CBS_UNCHECKEDNORMAL, rect, null); |
| rect.left += width; rect.right += width; |
| OS.DrawThemeBackground (hTheme, memDC, OS.BP_CHECKBOX, OS.CBS_CHECKEDNORMAL, rect, null); |
| rect.left += width; rect.right += width; |
| OS.DrawThemeBackground (hTheme, memDC, OS.BP_CHECKBOX, OS.CBS_UNCHECKEDNORMAL, rect, null); |
| rect.left += width; rect.right += width; |
| OS.DrawThemeBackground (hTheme, memDC, OS.BP_CHECKBOX, OS.CBS_MIXEDNORMAL, rect, null); |
| OS.CloseThemeData (hTheme); |
| } else { |
| OS.DrawFrameControl (memDC, rect, OS.DFC_BUTTON, OS.DFCS_BUTTONCHECK | OS.DFCS_FLAT); |
| rect.left += width; rect.right += width; |
| OS.DrawFrameControl (memDC, rect, OS.DFC_BUTTON, OS.DFCS_BUTTONCHECK | OS.DFCS_CHECKED | OS.DFCS_FLAT); |
| rect.left += width; rect.right += width; |
| OS.DrawFrameControl (memDC, rect, OS.DFC_BUTTON, OS.DFCS_BUTTONCHECK | OS.DFCS_INACTIVE | OS.DFCS_FLAT); |
| rect.left += width; rect.right += width; |
| OS.DrawFrameControl (memDC, rect, OS.DFC_BUTTON, OS.DFCS_BUTTONCHECK | OS.DFCS_CHECKED | OS.DFCS_INACTIVE | OS.DFCS_FLAT); |
| } |
| OS.SelectObject (memDC, hOldBitmap); |
| OS.DeleteDC (memDC); |
| OS.ReleaseDC (handle, hDC); |
| if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) { |
| OS.ImageList_Add (hStateList, hBitmap, 0); |
| } else { |
| OS.ImageList_AddMasked (hStateList, hBitmap, clrBackground); |
| } |
| OS.DeleteObject (hBitmap); |
| int hOldStateList = OS.SendMessage (handle, OS.TVM_GETIMAGELIST, OS.TVSIL_STATE, 0); |
| OS.SendMessage (handle, OS.TVM_SETIMAGELIST, OS.TVSIL_STATE, hStateList); |
| if (hOldStateList != 0) OS.ImageList_Destroy (hOldStateList); |
| } |
| |
| void setForegroundPixel (int pixel) { |
| if (foreground == pixel) return; |
| foreground = pixel; |
| OS.SendMessage (handle, OS.TVM_SETTEXTCOLOR, 0, pixel); |
| } |
| |
| /** |
| * Marks the receiver's header as visible if the argument is <code>true</code>, |
| * and marks it invisible otherwise. |
| * <p> |
| * If one of the receiver's ancestors is not visible or some |
| * other condition makes the receiver not visible, marking |
| * it visible may not actually cause it to be displayed. |
| * </p> |
| * |
| * @param show the new visibility state |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.1 |
| */ |
| public void setHeaderVisible (boolean show) { |
| checkWidget (); |
| if (hwndHeader == 0) { |
| if (!show) return; |
| createParent (); |
| } |
| int bits = OS.GetWindowLong (hwndHeader, OS.GWL_STYLE); |
| if (show) { |
| if ((bits & OS.HDS_HIDDEN) == 0) return; |
| bits &= ~OS.HDS_HIDDEN; |
| OS.SetWindowLong (hwndHeader, OS.GWL_STYLE, bits); |
| OS.ShowWindow (hwndHeader, OS.SW_SHOW); |
| } else { |
| if ((bits & OS.HDS_HIDDEN) != 0) return; |
| bits |= OS.HDS_HIDDEN; |
| OS.SetWindowLong (hwndHeader, OS.GWL_STYLE, bits); |
| OS.ShowWindow (hwndHeader, OS.SW_HIDE); |
| } |
| setScrollWidth (); |
| updateHeaderToolTips (); |
| updateScrollBar (); |
| } |
| |
| public void setRedraw (boolean redraw) { |
| checkWidget (); |
| /* |
| * Bug in Windows. For some reason, when WM_SETREDRAW |
| * is used to turn redraw on for a tree and the tree |
| * contains no items, the last item in the tree does |
| * not redraw properly. If the tree has only one item, |
| * that item is not drawn. If another window is dragged |
| * on top of the item, parts of the item are redrawn |
| * and erased at random. The fix is to ensure that this |
| * case doesn't happen by inserting and deleting an item |
| * when redraw is turned on and there are no items in |
| * the tree. |
| */ |
| int hItem = 0; |
| if (redraw && drawCount == 1) { |
| int count = OS.SendMessage (handle, OS.TVM_GETCOUNT, 0, 0); |
| if (count == 0) { |
| TVINSERTSTRUCT tvInsert = new TVINSERTSTRUCT (); |
| tvInsert.hInsertAfter = OS.TVI_FIRST; |
| hItem = OS.SendMessage (handle, OS.TVM_INSERTITEM, 0, tvInsert); |
| } |
| } |
| super.setRedraw (redraw); |
| if (hItem != 0) { |
| OS.SendMessage (handle, OS.TVM_DELETEITEM, 0, hItem); |
| } |
| } |
| |
| void setScrollWidth () { |
| if (hwndHeader == 0 || hwndParent == 0) return; |
| int width = 0; |
| HDITEM hdItem = new HDITEM (); |
| int count = OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); |
| for (int i=0; i<count; i++) { |
| hdItem.mask = OS.HDI_WIDTH; |
| OS.SendMessage (hwndHeader, OS.HDM_GETITEM, i, hdItem); |
| width += hdItem.cxy; |
| } |
| int left = 0; |
| RECT rect = new RECT (); |
| SCROLLINFO info = new SCROLLINFO (); |
| info.cbSize = SCROLLINFO.sizeof; |
| info.fMask = OS.SIF_RANGE | OS.SIF_PAGE; |
| if (count == 0) { |
| OS.GetScrollInfo (hwndParent, OS.SB_HORZ, info); |
| info.nPage = info.nMax + 1; |
| OS.SetScrollInfo (hwndParent, OS.SB_HORZ, info, true); |
| OS.GetScrollInfo (hwndParent, OS.SB_VERT, info); |
| info.nPage = info.nMax + 1; |
| OS.SetScrollInfo (hwndParent, OS.SB_VERT, info, true); |
| } else { |
| OS.GetClientRect (hwndParent, rect); |
| OS.GetScrollInfo (hwndParent, OS.SB_HORZ, info); |
| info.nMax = width; |
| info.nPage = rect.right - rect.left; |
| OS.SetScrollInfo (hwndParent, OS.SB_HORZ, info, true); |
| info.fMask = OS.SIF_POS; |
| OS.GetScrollInfo (hwndParent, OS.SB_HORZ, info); |
| left = info.nPos; |
| } |
| OS.GetClientRect (hwndParent, rect); |
| int hHeap = OS.GetProcessHeap (); |
| HDLAYOUT playout = new HDLAYOUT (); |
| playout.prc = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, RECT.sizeof); |
| playout.pwpos = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, WINDOWPOS.sizeof); |
| OS.MoveMemory (playout.prc, rect, RECT.sizeof); |
| OS.SendMessage (hwndHeader, OS.HDM_LAYOUT, 0, playout); |
| WINDOWPOS pos = new WINDOWPOS (); |
| OS.MoveMemory (pos, playout.pwpos, WINDOWPOS.sizeof); |
| if (playout.prc != 0) OS.HeapFree (hHeap, 0, playout.prc); |
| if (playout.pwpos != 0) OS.HeapFree (hHeap, 0, playout.pwpos); |
| SetWindowPos (hwndHeader, OS.HWND_TOP, pos.x - left, pos.y, pos.cx + left, pos.cy, OS.SWP_NOACTIVATE); |
| int w = pos.cx + (count == 0 ? 0 : OS.GetSystemMetrics (OS.SM_CXVSCROLL)); |
| int h = rect.bottom - rect.top - pos.cy; |
| boolean oldIgnore = ignoreResize; |
| ignoreResize = true; |
| SetWindowPos (handle, 0, pos.x - left, pos.y + pos.cy, w + left, h, OS.SWP_NOACTIVATE | OS.SWP_NOZORDER); |
| ignoreResize = oldIgnore; |
| } |
| |
| void setSelection (int hItem, TVITEM tvItem, TreeItem [] selection) { |
| while (hItem != 0) { |
| int index = 0; |
| while (index < selection.length) { |
| TreeItem item = selection [index]; |
| if (item != null && item.handle == hItem) break; |
| index++; |
| } |
| tvItem.hItem = hItem; |
| OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); |
| if ((tvItem.state & OS.TVIS_SELECTED) != 0) { |
| if (index == selection.length) { |
| tvItem.state = 0; |
| OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); |
| } |
| } else { |
| if (index != selection.length) { |
| tvItem.state = OS.TVIS_SELECTED; |
| OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); |
| } |
| } |
| int hFirstItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CHILD, hItem); |
| setSelection (hFirstItem, tvItem, selection); |
| hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXT, hItem); |
| } |
| } |
| |
| /** |
| * Sets the receiver's selection to be the given array of items. |
| * The current selection is cleared before the new items are selected. |
| * <p> |
| * Items that are not in the receiver are ignored. |
| * If the receiver is single-select and multiple items are specified, |
| * then all items are ignored. |
| * |
| * @param items the array of items |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the array of items is null</li> |
| * <li>ERROR_INVALID_ARGUMENT - if one of the items has been disposed</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see Tree#deselectAll() |
| */ |
| public void setSelection (TreeItem [] items) { |
| checkWidget (); |
| if (items == null) error (SWT.ERROR_NULL_ARGUMENT); |
| int length = items.length; |
| if (length == 0 || ((style & SWT.SINGLE) != 0 && length > 1)) { |
| deselectAll(); |
| return; |
| } |
| |
| /* Select/deselect the first item */ |
| TreeItem item = items [0]; |
| if (item != null) { |
| if (item.isDisposed ()) error (SWT.ERROR_INVALID_ARGUMENT); |
| int hOldItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0); |
| int hNewItem = hAnchor = item.handle; |
| |
| /* |
| * Bug in Windows. When TVM_SELECTITEM is used to select and |
| * scroll an item to be visible and the client area of the tree |
| * is smaller that the size of one item, TVM_SELECTITEM makes |
| * the next item in the tree visible by making it the top item |
| * instead of making the desired item visible. The fix is to |
| * detect the case when the client area is too small and make |
| * the desired visible item be the top item in the tree. |
| * |
| * Note that TVM_SELECTITEM when called with TVGN_FIRSTVISIBLE |
| * also requires the work around for scrolling. |
| */ |
| boolean fixScroll = checkScroll (hNewItem); |
| if (fixScroll) { |
| OS.SendMessage (handle, OS.WM_SETREDRAW, 1, 0); |
| OS.DefWindowProc (handle, OS.WM_SETREDRAW, 0, 0); |
| } |
| ignoreSelect = true; |
| OS.SendMessage (handle, OS.TVM_SELECTITEM, OS.TVGN_CARET, hNewItem); |
| ignoreSelect = false; |
| if (OS.SendMessage (handle, OS.TVM_GETVISIBLECOUNT, 0, 0) == 0) { |
| OS.SendMessage (handle, OS.TVM_SELECTITEM, OS.TVGN_FIRSTVISIBLE, hNewItem); |
| } |
| if (fixScroll) { |
| OS.DefWindowProc (handle, OS.WM_SETREDRAW, 1, 0); |
| OS.SendMessage (handle, OS.WM_SETREDRAW, 0, 0); |
| } |
| |
| /* |
| * Feature in Windows. When the old and new focused item |
| * are the same, Windows does not check to make sure that |
| * the item is actually selected, not just focused. The |
| * fix is to force the item to draw selected by setting |
| * the state mask, and to ensure that it is visible. |
| */ |
| if (hOldItem == hNewItem) { |
| TVITEM tvItem = new TVITEM (); |
| tvItem.mask = OS.TVIF_STATE; |
| tvItem.state = OS.TVIS_SELECTED; |
| tvItem.stateMask = OS.TVIS_SELECTED; |
| tvItem.hItem = hNewItem; |
| OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); |
| showItem (hNewItem); |
| } |
| } |
| if ((style & SWT.SINGLE) != 0) return; |
| |
| /* Select/deselect the rest of the items */ |
| TVITEM tvItem = new TVITEM (); |
| tvItem.mask = OS.TVIF_STATE; |
| tvItem.stateMask = OS.TVIS_SELECTED; |
| int oldProc = OS.GetWindowLong (handle, OS.GWL_WNDPROC); |
| OS.SetWindowLong (handle, OS.GWL_WNDPROC, TreeProc); |
| if ((style & SWT.VIRTUAL) != 0) { |
| int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_ROOT, 0); |
| setSelection (hItem, tvItem, items); |
| } else { |
| for (int i=0; i<this.items.length; i++) { |
| item = this.items [i]; |
| if (item != null) { |
| int index = 0; |
| while (index < length) { |
| if (items [index] == item) break; |
| index++; |
| } |
| tvItem.hItem = item.handle; |
| OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); |
| if ((tvItem.state & OS.TVIS_SELECTED) != 0) { |
| if (index == length) { |
| tvItem.state = 0; |
| OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); |
| } |
| } else { |
| if (index != length) { |
| tvItem.state = OS.TVIS_SELECTED; |
| OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); |
| } |
| } |
| } |
| } |
| } |
| OS.SetWindowLong (handle, OS.GWL_WNDPROC, oldProc); |
| } |
| |
| /** |
| * Sets the column used by the sort indicator for the receiver. A null |
| * value will clear the sort indicator. The current sort column is cleared |
| * before the new column is set. |
| * |
| * @param column the column used by the sort indicator or <code>null</code> |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the column is disposed</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.2 |
| */ |
| public void setSortColumn (TreeColumn column) { |
| checkWidget (); |
| if (column != null && column.isDisposed ()) error (SWT.ERROR_INVALID_ARGUMENT); |
| if (sortColumn != null && !sortColumn.isDisposed ()) { |
| sortColumn.setSortDirection (SWT.NONE); |
| } |
| sortColumn = column; |
| if (sortColumn != null && sortDirection != SWT.NONE) { |
| sortColumn.setSortDirection (sortDirection); |
| } |
| } |
| |
| /** |
| * Sets the direction of the sort indicator for the receiver. The value |
| * can be one of <code>UP</code>, <code>DOWN</code> or <code>NONE</code>. |
| * |
| * @param direction the direction of the sort indicator |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.2 |
| */ |
| public void setSortDirection (int direction) { |
| checkWidget (); |
| if ((direction & (SWT.UP | SWT.DOWN)) == 0 && direction != SWT.NONE) return; |
| sortDirection = direction; |
| if (sortColumn != null && !sortColumn.isDisposed ()) { |
| sortColumn.setSortDirection (direction); |
| } |
| } |
| |
| /** |
| * Sets the item which is currently at the top of the receiver. |
| * This item can change when items are expanded, collapsed, scrolled |
| * or new items are added or removed. |
| * |
| * @param item the item to be shown |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the item is null</li> |
| * <li>ERROR_INVALID_ARGUMENT - if the item has been disposed</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see Tree#getTopItem() |
| * |
| * @since 2.1 |
| */ |
| public void setTopItem (TreeItem item) { |
| checkWidget (); |
| if (item == null) SWT.error (SWT.ERROR_NULL_ARGUMENT); |
| if (item.isDisposed ()) SWT.error (SWT.ERROR_INVALID_ARGUMENT); |
| int hItem = item.handle; |
| boolean fixScroll = checkScroll (hItem); |
| if (fixScroll) { |
| OS.SendMessage (handle, OS.WM_SETREDRAW, 1, 0); |
| OS.DefWindowProc (handle, OS.WM_SETREDRAW, 0, 0); |
| } |
| OS.SendMessage (handle, OS.TVM_SELECTITEM, OS.TVGN_FIRSTVISIBLE, hItem); |
| if (fixScroll) { |
| OS.DefWindowProc (handle, OS.WM_SETREDRAW, 1, 0); |
| OS.SendMessage (handle, OS.WM_SETREDRAW, 0, 0); |
| } |
| updateScrollBar (); |
| } |
| |
| void showItem (int hItem) { |
| /* |
| * Bug in Windows. When TVM_ENSUREVISIBLE is used to ensure |
| * that an item is visible and the client area of the tree is |
| * smaller that the size of one item, TVM_ENSUREVISIBLE makes |
| * the next item in the tree visible by making it the top item |
| * instead of making the desired item visible. The fix is to |
| * detect the case when the client area is too small and make |
| * the desired visible item be the top item in the tree. |
| */ |
| if (OS.SendMessage (handle, OS.TVM_GETVISIBLECOUNT, 0, 0) == 0) { |
| boolean fixScroll = checkScroll (hItem); |
| if (fixScroll) { |
| OS.SendMessage (handle, OS.WM_SETREDRAW, 1, 0); |
| OS.DefWindowProc (handle, OS.WM_SETREDRAW, 0, 0); |
| } |
| OS.SendMessage (handle, OS.TVM_SELECTITEM, OS.TVGN_FIRSTVISIBLE, hItem); |
| OS.SendMessage (handle, OS.WM_HSCROLL, OS.SB_TOP, 0); |
| if (fixScroll) { |
| OS.DefWindowProc (handle, OS.WM_SETREDRAW, 1, 0); |
| OS.SendMessage (handle, OS.WM_SETREDRAW, 0, 0); |
| } |
| } else { |
| boolean scroll = true; |
| RECT itemRect = new RECT (); |
| itemRect.left = hItem; |
| if (OS.SendMessage (handle, OS.TVM_GETITEMRECT, 1, itemRect) != 0) { |
| forceResize (); |
| RECT rect = new RECT (); |
| OS.GetClientRect (handle, rect); |
| POINT pt = new POINT (); |
| pt.x = itemRect.left; |
| pt.y = itemRect.top; |
| if (OS.PtInRect (rect, pt)) { |
| pt.y = itemRect.bottom; |
| if (OS.PtInRect (rect, pt)) scroll = false; |
| } |
| } |
| if (scroll) { |
| boolean fixScroll = checkScroll (hItem); |
| if (fixScroll) { |
| OS.SendMessage (handle, OS.WM_SETREDRAW, 1, 0); |
| OS.DefWindowProc (handle, OS.WM_SETREDRAW, 0, 0); |
| } |
| OS.SendMessage (handle, OS.TVM_ENSUREVISIBLE, 0, hItem); |
| if (fixScroll) { |
| OS.DefWindowProc (handle, OS.WM_SETREDRAW, 1, 0); |
| OS.SendMessage (handle, OS.WM_SETREDRAW, 0, 0); |
| } |
| } |
| } |
| if (hwndParent != 0) { |
| RECT itemRect = new RECT (); |
| itemRect.left = hItem; |
| if (OS.SendMessage (handle, OS.TVM_GETITEMRECT, 1, itemRect) != 0) { |
| forceResize (); |
| RECT rect = new RECT (); |
| OS.GetClientRect (hwndParent, rect); |
| OS.MapWindowPoints (hwndParent, handle, rect, 2); |
| POINT pt = new POINT (); |
| pt.x = itemRect.left; |
| pt.y = itemRect.top; |
| if (!OS.PtInRect (rect, pt)) { |
| pt.y = itemRect.bottom; |
| if (!OS.PtInRect (rect, pt)) { |
| SCROLLINFO info = new SCROLLINFO (); |
| info.cbSize = SCROLLINFO.sizeof; |
| info.fMask = OS.SIF_POS; |
| info.nPos = Math.max (0, pt.x - Tree.INSET / 2); |
| OS.SetScrollInfo (hwndParent, OS.SB_HORZ, info, true); |
| setScrollWidth (); |
| } |
| } |
| } |
| } |
| updateScrollBar (); |
| } |
| |
| /** |
| * Shows the column. If the column is already showing in the receiver, |
| * this method simply returns. Otherwise, the columns are scrolled until |
| * the column is visible. |
| * |
| * @param column the column to be shown |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the item is null</li> |
| * <li>ERROR_INVALID_ARGUMENT - if the item has been disposed</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.1 |
| */ |
| public void showColumn (TreeColumn column) { |
| checkWidget (); |
| if (column == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (column.isDisposed ()) error(SWT.ERROR_INVALID_ARGUMENT); |
| if (column.parent != this) return; |
| int index = indexOf (column); |
| if (index == -1) return; |
| int count = OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); |
| if (0 <= index && index < count) { |
| if (hwndParent != 0) { |
| forceResize (); |
| RECT rect = new RECT (); |
| OS.GetClientRect (hwndParent, rect); |
| OS.MapWindowPoints (hwndParent, handle, rect, 2); |
| RECT itemRect = new RECT (); |
| OS.SendMessage (hwndHeader, OS.HDM_GETITEMRECT, index, itemRect); |
| POINT pt = new POINT (); |
| pt.x = itemRect.right; |
| pt.y = rect.top; |
| if (!OS.PtInRect (rect, pt)) { |
| SCROLLINFO info = new SCROLLINFO (); |
| info.cbSize = SCROLLINFO.sizeof; |
| info.fMask = OS.SIF_POS; |
| info.nPos = Math.max (0, itemRect.left - Tree.INSET / 2); |
| OS.SetScrollInfo (hwndParent, OS.SB_HORZ, info, true); |
| setScrollWidth (); |
| } |
| } |
| } |
| } |
| |
| /** |
| * Shows the item. If the item is already showing in the receiver, |
| * this method simply returns. Otherwise, the items are scrolled |
| * and expanded until the item is visible. |
| * |
| * @param item the item to be shown |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the item is null</li> |
| * <li>ERROR_INVALID_ARGUMENT - if the item has been disposed</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see Tree#showSelection() |
| */ |
| public void showItem (TreeItem item) { |
| checkWidget (); |
| if (item == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (item.isDisposed ()) error(SWT.ERROR_INVALID_ARGUMENT); |
| showItem (item.handle); |
| } |
| |
| /** |
| * Shows the selection. If the selection is already showing in the receiver, |
| * this method simply returns. Otherwise, the items are scrolled until |
| * the selection is visible. |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see Tree#showItem(TreeItem) |
| */ |
| public void showSelection () { |
| checkWidget (); |
| int hItem = 0; |
| if ((style & SWT.SINGLE) != 0) { |
| hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0); |
| if (hItem == 0) return; |
| TVITEM tvItem = new TVITEM (); |
| tvItem.mask = OS.TVIF_STATE; |
| tvItem.hItem = hItem; |
| OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); |
| if ((tvItem.state & OS.TVIS_SELECTED) == 0) return; |
| } else { |
| int oldProc = OS.GetWindowLong (handle, OS.GWL_WNDPROC); |
| OS.SetWindowLong (handle, OS.GWL_WNDPROC, TreeProc); |
| if ((style & SWT.VIRTUAL) != 0) { |
| int hRoot = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_ROOT, 0); |
| hItem = getNextSelection (hRoot); |
| } else { |
| //FIXME - this code expands first selected item it finds |
| TVITEM tvItem = new TVITEM (); |
| tvItem.mask = OS.TVIF_STATE; |
| int index = 0; |
| while (index <items.length) { |
| TreeItem item = items [index]; |
| if (item != null) { |
| tvItem.hItem = item.handle; |
| OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); |
| if ((tvItem.state & OS.TVIS_SELECTED) != 0) { |
| hItem = tvItem.hItem; |
| break; |
| } |
| } |
| index++; |
| } |
| } |
| OS.SetWindowLong (handle, OS.GWL_WNDPROC, oldProc); |
| } |
| if (hItem != 0) showItem (hItem); |
| } |
| |
| void showWidget (boolean visible) { |
| super.showWidget (visible); |
| if (hwndParent != 0) { |
| OS.ShowWindow (hwndParent, visible ? OS.SW_SHOW : OS.SW_HIDE); |
| } |
| } |
| |
| void subclass () { |
| super.subclass (); |
| if (hwndHeader != 0) { |
| OS.SetWindowLong (hwndHeader, OS.GWL_WNDPROC, display.windowProc); |
| } |
| } |
| |
| String toolTipText (NMTTDISPINFO hdr) { |
| int hwndToolTip = OS.SendMessage (handle, OS.TVM_GETTOOLTIPS, 0, 0); |
| if (hwndToolTip == hdr.hwndFrom && toolTipText != null) return ""; //$NON-NLS-1$ |
| if (headerToolTipHandle == hdr.hwndFrom) { |
| int count = OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); |
| for (int i=0; i<count; i++) { |
| TreeColumn column = columns [i]; |
| if (column.id == hdr.idFrom) return column.toolTipText; |
| } |
| } |
| return super.toolTipText (hdr); |
| } |
| |
| int topHandle () { |
| return hwndParent != 0 ? hwndParent : handle; |
| } |
| |
| void updateHeaderToolTips () { |
| if (headerToolTipHandle == 0) return; |
| RECT rect = new RECT (); |
| TOOLINFO lpti = new TOOLINFO (); |
| lpti.cbSize = TOOLINFO.sizeof; |
| lpti.uFlags = OS.TTF_SUBCLASS; |
| lpti.hwnd = hwndHeader; |
| lpti.lpszText = OS.LPSTR_TEXTCALLBACK; |
| int count = OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); |
| for (int i=0; i<count; i++) { |
| TreeColumn column = columns [i]; |
| if (OS.SendMessage (hwndHeader, OS.HDM_GETITEMRECT, i, rect) != 0) { |
| lpti.uId = column.id = display.nextToolTipId++; |
| lpti.left = rect.left; |
| lpti.top = rect.top; |
| lpti.right = rect.right; |
| lpti.bottom = rect.bottom; |
| OS.SendMessage (headerToolTipHandle, OS.TTM_ADDTOOL, 0, lpti); |
| } |
| } |
| } |
| |
| void updateImageList () { |
| if (imageList == null) return; |
| if (hwndHeader == 0) return; |
| int i = 0, index = OS.SendMessage (hwndHeader, OS.HDM_ORDERTOINDEX, 0, 0); |
| while (i < items.length) { |
| TreeItem item = items [i]; |
| if (item != null) { |
| Image image = null; |
| if (index == 0) { |
| image = item.image; |
| } else { |
| Image [] images = item.images; |
| if (images != null) image = images [index]; |
| } |
| if (image != null) break; |
| } |
| i++; |
| } |
| /* |
| * Feature in Windows. When setting the same image list multiple |
| * times, Windows does work making this operation slow. The fix |
| * is to test for the same image list before setting the new one. |
| */ |
| int hImageList = i == items.length ? 0 : imageList.getHandle (); |
| int hOldImageList = OS.SendMessage (handle, OS.TVM_GETIMAGELIST, OS.TVSIL_NORMAL, 0); |
| if (hImageList != hOldImageList) { |
| OS.SendMessage (handle, OS.TVM_SETIMAGELIST, OS.TVSIL_NORMAL, hImageList); |
| } |
| } |
| |
| void updateImages () { |
| if (sortColumn != null && !sortColumn.isDisposed ()) { |
| if (OS.COMCTL32_MAJOR < 6) { |
| switch (sortDirection) { |
| case SWT.UP: |
| case SWT.DOWN: |
| sortColumn.setImage (display.getSortImage (sortDirection), true, true); |
| break; |
| } |
| } |
| } |
| } |
| |
| void updateScrollBar () { |
| if (hwndParent != 0) { |
| int columnCount = OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); |
| if (columnCount != 0) { |
| SCROLLINFO info = new SCROLLINFO (); |
| info.cbSize = SCROLLINFO.sizeof; |
| info.fMask = OS.SIF_ALL; |
| int itemCount = OS.SendMessage (handle, OS.TVM_GETCOUNT, 0, 0); |
| if (itemCount == 0) { |
| OS.GetScrollInfo (hwndParent, OS.SB_VERT, info); |
| info.nPage = info.nMax + 1; |
| OS.SetScrollInfo (hwndParent, OS.SB_VERT, info, true); |
| } else { |
| OS.GetScrollInfo (handle, OS.SB_VERT, info); |
| OS.SetScrollInfo (hwndParent, OS.SB_VERT, info, true); |
| } |
| } |
| } |
| } |
| |
| void unsubclass () { |
| super.unsubclass (); |
| if (hwndHeader != 0) { |
| OS.SetWindowLong (hwndHeader, OS.GWL_WNDPROC, HeaderProc); |
| } |
| } |
| |
| int widgetStyle () { |
| int bits = super.widgetStyle () | OS.TVS_SHOWSELALWAYS | OS.TVS_LINESATROOT | OS.TVS_HASBUTTONS; |
| if ((style & SWT.FULL_SELECTION) != 0) { |
| bits |= OS.TVS_FULLROWSELECT; |
| } else { |
| bits |= OS.TVS_HASLINES; |
| } |
| // bits |= OS.TVS_NOTOOLTIPS; |
| return bits; |
| } |
| |
| TCHAR windowClass () { |
| return TreeClass; |
| } |
| |
| int windowProc () { |
| return TreeProc; |
| } |
| |
| int windowProc (int hwnd, int msg, int wParam, int lParam) { |
| if (hwndHeader != 0 && hwnd == hwndHeader) { |
| switch (msg) { |
| /* This code is intentionally commented */ |
| // case OS.WM_CONTEXTMENU: { |
| // LRESULT result = wmContextMenu (hwnd, wParam, lParam); |
| // if (result != null) return result.value; |
| // break; |
| // } |
| case OS.WM_NOTIFY: { |
| NMHDR hdr = new NMHDR (); |
| OS.MoveMemory (hdr, lParam, NMHDR.sizeof); |
| switch (hdr.code) { |
| case OS.TTN_SHOW: |
| case OS.TTN_POP: |
| case OS.TTN_GETDISPINFOA: |
| case OS.TTN_GETDISPINFOW: |
| return OS.SendMessage (handle, msg, wParam, lParam); |
| } |
| } |
| } |
| return callWindowProc (hwnd, msg, wParam, lParam); |
| } |
| if (hwndParent != 0 && hwnd == hwndParent) { |
| switch (msg) { |
| case OS.WM_MOVE: { |
| sendEvent (SWT.Move); |
| return 0; |
| } |
| case OS.WM_SIZE: { |
| setScrollWidth (); |
| if (ignoreResize) return 0; |
| setResizeChildren (false); |
| int code = callWindowProc (hwnd, OS.WM_SIZE, wParam, lParam); |
| sendEvent (SWT.Resize); |
| if (isDisposed ()) return 0; |
| if (layout != null) { |
| markLayout (false, false); |
| updateLayout (false, false); |
| } |
| setResizeChildren (true); |
| return code; |
| } |
| case OS.WM_NCPAINT: { |
| LRESULT result = wmNCPaint (hwnd, wParam, lParam); |
| if (result != null) return result.value; |
| break; |
| } |
| case OS.WM_COMMAND: |
| case OS.WM_NOTIFY: |
| case OS.WM_SYSCOLORCHANGE: { |
| return OS.SendMessage (handle, msg, wParam, lParam); |
| } |
| case OS.WM_VSCROLL: { |
| SCROLLINFO info = new SCROLLINFO (); |
| info.cbSize = SCROLLINFO.sizeof; |
| info.fMask = OS.SIF_ALL; |
| OS.GetScrollInfo (hwndParent, OS.SB_VERT, info); |
| OS.SetScrollInfo (handle, OS.SB_VERT, info, true); |
| int code = OS.SendMessage (handle, OS.WM_VSCROLL, wParam, lParam); |
| OS.GetScrollInfo (handle, OS.SB_VERT, info); |
| OS.SetScrollInfo (hwndParent, OS.SB_VERT, info, true); |
| return code; |
| } |
| case OS.WM_HSCROLL: { |
| /* |
| * Bug on WinCE. lParam should be NULL when the message is not sent |
| * by a scroll bar control, but it contains the handle to the window. |
| * When the message is sent by a scroll bar control, it correctly |
| * contains the handle to the scroll bar. The fix is to check for |
| * both. |
| */ |
| if (horizontalBar != null && (lParam == 0 || lParam == hwndParent)) { |
| wmScroll (horizontalBar, true, hwndParent, OS.WM_HSCROLL, wParam, lParam); |
| } |
| setScrollWidth (); |
| break; |
| } |
| } |
| return callWindowProc (hwnd, msg, wParam, lParam); |
| } |
| return super.windowProc (hwnd, msg, wParam, lParam); |
| } |
| |
| LRESULT WM_CHAR (int wParam, int lParam) { |
| LRESULT result = super.WM_CHAR (wParam, lParam); |
| if (result != null) return result; |
| /* |
| * Feature in Windows. The tree control beeps |
| * in WM_CHAR when the search for the item that |
| * matches the key stroke fails. This is the |
| * standard tree behavior but is unexpected when |
| * the key that was typed was ESC, CR or SPACE. |
| * The fix is to avoid calling the tree window |
| * proc in these cases. |
| */ |
| switch (wParam) { |
| case ' ': { |
| int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0); |
| if (hItem != 0) { |
| hAnchor = hItem; |
| OS.SendMessage (handle, OS.TVM_ENSUREVISIBLE, 0, hItem); |
| TVITEM tvItem = new TVITEM (); |
| tvItem.mask = OS.TVIF_STATE | OS.TVIF_PARAM; |
| tvItem.hItem = hItem; |
| if ((style & SWT.CHECK) != 0) { |
| tvItem.stateMask = OS.TVIS_STATEIMAGEMASK; |
| OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); |
| int state = tvItem.state >> 12; |
| if ((state & 0x1) != 0) { |
| state++; |
| } else { |
| --state; |
| } |
| tvItem.state = state << 12; |
| OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); |
| if (!OS.IsWinCE) { |
| int id = hItem; |
| if (OS.COMCTL32_MAJOR >= 6) { |
| id = OS.SendMessage (handle, OS.TVM_MAPHTREEITEMTOACCID, hItem, 0); |
| } |
| OS.NotifyWinEvent (OS.EVENT_OBJECT_FOCUS, handle, OS.OBJID_CLIENT, id); |
| } |
| } |
| tvItem.stateMask = OS.TVIS_SELECTED; |
| OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); |
| if ((style & SWT.MULTI) != 0 && OS.GetKeyState (OS.VK_CONTROL) < 0) { |
| if ((tvItem.state & OS.TVIS_SELECTED) != 0) { |
| tvItem.state &= ~OS.TVIS_SELECTED; |
| } else { |
| tvItem.state |= OS.TVIS_SELECTED; |
| } |
| } else { |
| tvItem.state |= OS.TVIS_SELECTED; |
| } |
| OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); |
| TreeItem item = _getItem (hItem, tvItem.lParam); |
| Event event = new Event (); |
| event.item = item; |
| postEvent (SWT.Selection, event); |
| if ((style & SWT.CHECK) != 0) { |
| event = new Event (); |
| event.item = item; |
| event.detail = SWT.CHECK; |
| postEvent (SWT.Selection, event); |
| } |
| } |
| return LRESULT.ZERO; |
| } |
| case SWT.CR: { |
| /* |
| * Feature in Windows. Windows sends NM_RETURN from WM_KEYDOWN |
| * instead of using WM_CHAR. This means that application code |
| * that expects to consume the key press and therefore avoid a |
| * SWT.DefaultSelection event from WM_CHAR will fail. The fix |
| * is to implement SWT.DefaultSelection in WM_CHAR instead of |
| * using NM_RETURN. |
| */ |
| Event event = new Event (); |
| int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0); |
| if (hItem != 0) { |
| TVITEM tvItem = new TVITEM (); |
| tvItem.hItem = hItem; |
| tvItem.mask = OS.TVIF_PARAM; |
| OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); |
| event.item = _getItem (hItem, tvItem.lParam); |
| } |
| postEvent (SWT.DefaultSelection, event); |
| return LRESULT.ZERO; |
| } |
| case SWT.ESC: |
| return LRESULT.ZERO; |
| } |
| return result; |
| } |
| |
| LRESULT WM_ERASEBKGND (int wParam, int lParam) { |
| LRESULT result = super.WM_ERASEBKGND (wParam, lParam); |
| if (backgroundImage != null) return LRESULT.ONE; |
| return result; |
| } |
| |
| LRESULT WM_GETOBJECT (int wParam, int lParam) { |
| /* |
| * Ensure that there is an accessible object created for this |
| * control because support for checked item and tree column |
| * accessibility is temporarily implemented in the accessibility |
| * package. |
| */ |
| if ((style & SWT.CHECK) != 0 || hwndParent != 0) { |
| if (accessible == null) accessible = new_Accessible (this); |
| } |
| return super.WM_GETOBJECT (wParam, lParam); |
| } |
| |
| LRESULT WM_KEYDOWN (int wParam, int lParam) { |
| LRESULT result = super.WM_KEYDOWN (wParam, lParam); |
| if (result != null) return result; |
| switch (wParam) { |
| case OS.VK_SPACE: |
| /* |
| * Ensure that the window proc does not process VK_SPACE |
| * so that it can be handled in WM_CHAR. This allows the |
| * application to cancel an operation that is normally |
| * performed in WM_KEYDOWN from WM_CHAR. |
| */ |
| return LRESULT.ZERO; |
| case OS.VK_UP: |
| case OS.VK_DOWN: |
| case OS.VK_PRIOR: |
| case OS.VK_NEXT: |
| case OS.VK_HOME: |
| case OS.VK_END: { |
| OS.SendMessage (handle, OS.WM_CHANGEUISTATE, OS.UIS_INITIALIZE, 0); |
| if ((style & SWT.SINGLE) != 0) break; |
| if (OS.GetKeyState (OS.VK_SHIFT) < 0) { |
| int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0); |
| if (hItem != 0) { |
| if (hAnchor == 0) hAnchor = hItem; |
| ignoreSelect = ignoreDeselect = true; |
| int code = callWindowProc (handle, OS.WM_KEYDOWN, wParam, lParam); |
| ignoreSelect = ignoreDeselect = false; |
| int hNewItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0); |
| TVITEM tvItem = new TVITEM (); |
| tvItem.mask = OS.TVIF_STATE; |
| tvItem.stateMask = OS.TVIS_SELECTED; |
| int hDeselectItem = hItem; |
| RECT rect1 = new RECT (); |
| rect1.left = hAnchor; |
| OS.SendMessage (handle, OS.TVM_GETITEMRECT, 1, rect1); |
| RECT rect2 = rect2 = new RECT (); |
| rect2.left = hDeselectItem; |
| OS.SendMessage (handle, OS.TVM_GETITEMRECT, 1, rect2); |
| int flags = rect1.top < rect2.top ? OS.TVGN_PREVIOUSVISIBLE : OS.TVGN_NEXTVISIBLE; |
| while (hDeselectItem != hAnchor) { |
| tvItem.hItem = hDeselectItem; |
| OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); |
| hDeselectItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, flags, hDeselectItem); |
| } |
| int hSelectItem = hAnchor; |
| rect1.left = hNewItem; |
| OS.SendMessage (handle, OS.TVM_GETITEMRECT, 1, rect1); |
| rect2.left = hSelectItem; |
| OS.SendMessage (handle, OS.TVM_GETITEMRECT, 1, rect2); |
| tvItem.state = OS.TVIS_SELECTED; |
| flags = rect1.top < rect2.top ? OS.TVGN_PREVIOUSVISIBLE : OS.TVGN_NEXTVISIBLE; |
| while (hSelectItem != hNewItem) { |
| tvItem.hItem = hSelectItem; |
| OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); |
| hSelectItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, flags, hSelectItem); |
| } |
| tvItem.hItem = hNewItem; |
| OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); |
| tvItem.mask = OS.TVIF_PARAM; |
| tvItem.hItem = hNewItem; |
| OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); |
| Event event = new Event (); |
| event.item = _getItem (hNewItem, tvItem.lParam); |
| postEvent (SWT.Selection, event); |
| return new LRESULT (code); |
| } |
| } |
| if (OS.GetKeyState (OS.VK_CONTROL) < 0) { |
| int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0); |
| if (hItem != 0) { |
| TVITEM tvItem = new TVITEM (); |
| tvItem.mask = OS.TVIF_STATE; |
| tvItem.stateMask = OS.TVIS_SELECTED; |
| tvItem.hItem = hItem; |
| OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); |
| boolean oldSelected = (tvItem.state & OS.TVIS_SELECTED) != 0; |
| int hNewItem = 0; |
| switch (wParam) { |
| case OS.VK_UP: |
| hNewItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_PREVIOUSVISIBLE, hItem); |
| break; |
| case OS.VK_DOWN: |
| hNewItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXTVISIBLE, hItem); |
| break; |
| case OS.VK_HOME: |
| hNewItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_ROOT, 0); |
| break; |
| case OS.VK_PRIOR: |
| hNewItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_FIRSTVISIBLE, 0); |
| if (hNewItem == hItem) { |
| OS.SendMessage (handle, OS.WM_VSCROLL, OS.SB_PAGEUP, 0); |
| hNewItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_FIRSTVISIBLE, 0); |
| } |
| break; |
| case OS.VK_NEXT: |
| RECT rect = new RECT (), clientRect = new RECT (); |
| OS.GetClientRect (handle, clientRect); |
| hNewItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_FIRSTVISIBLE, 0); |
| do { |
| int hVisible = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXTVISIBLE, hNewItem); |
| if (hVisible == 0) break; |
| rect.left = hVisible; |
| OS.SendMessage (handle, OS.TVM_GETITEMRECT, 1, rect); |
| if (rect.bottom > clientRect.bottom) break; |
| if ((hNewItem = hVisible) == hItem) { |
| OS.SendMessage (handle, OS.WM_VSCROLL, OS.SB_PAGEDOWN, 0); |
| } |
| } while (hNewItem != 0); |
| break; |
| case OS.VK_END: |
| hNewItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_LASTVISIBLE, 0); |
| break; |
| } |
| if (hNewItem != 0) { |
| OS.SendMessage (handle, OS.TVM_ENSUREVISIBLE, 0, hNewItem); |
| tvItem.hItem = hNewItem; |
| OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); |
| boolean newSelected = (tvItem.state & OS.TVIS_SELECTED) != 0; |
| if (!newSelected && drawCount == 0) { |
| OS.UpdateWindow (handle); |
| OS.DefWindowProc (handle, OS.WM_SETREDRAW, 0, 0); |
| /* |
| * This code is intentionally commented. |
| */ |
| // OS.SendMessage (handle, OS.WM_SETREDRAW, 0, 0); |
| } |
| ignoreSelect = true; |
| OS.SendMessage (handle, OS.TVM_SELECTITEM, OS.TVGN_CARET, hNewItem); |
| ignoreSelect = false; |
| if (oldSelected) { |
| tvItem.state = OS.TVIS_SELECTED; |
| tvItem.hItem = hItem; |
| OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); |
| } |
| if (!newSelected) { |
| tvItem.state = 0; |
| tvItem.hItem = hNewItem; |
| OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); |
| } |
| if (!newSelected && drawCount == 0) { |
| RECT rect1 = new RECT (), rect2 = new RECT (); |
| rect1.left = hItem; rect2.left = hNewItem; |
| int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); |
| int fItemRect = (bits & OS.TVS_FULLROWSELECT) != 0 ? 0 : 1; |
| OS.SendMessage (handle, OS.TVM_GETITEMRECT, fItemRect, rect1); |
| OS.SendMessage (handle, OS.TVM_GETITEMRECT, fItemRect, rect2); |
| /* |
| * This code is intentionally commented. |
| */ |
| // OS.SendMessage (handle, OS.WM_SETREDRAW, 1, 0); |
| OS.DefWindowProc (handle, OS.WM_SETREDRAW, 1, 0); |
| if (OS.IsWinCE) { |
| OS.InvalidateRect (handle, rect1, false); |
| OS.InvalidateRect (handle, rect2, false); |
| OS.UpdateWindow (handle); |
| } else { |
| int flags = OS.RDW_UPDATENOW | OS.RDW_INVALIDATE; |
| OS.RedrawWindow (handle, rect1, 0, flags); |
| OS.RedrawWindow (handle, rect2, 0, flags); |
| } |
| } |
| return LRESULT.ZERO; |
| } |
| } |
| } |
| int code = callWindowProc (handle, OS.WM_KEYDOWN, wParam, lParam); |
| hAnchor = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0); |
| return new LRESULT (code); |
| } |
| } |
| return result; |
| } |
| |
| LRESULT WM_KILLFOCUS (int wParam, int lParam) { |
| LRESULT result = super.WM_KILLFOCUS (wParam, lParam); |
| if ((style & SWT.SINGLE) != 0) return result; |
| /* |
| * Feature in Windows. When multiple item have |
| * the TVIS_SELECTED state, Windows redraws only |
| * the focused item in the color used to show the |
| * selection when the tree loses or gains focus. |
| * The fix is to force Windows to redraw all the |
| * visible items when focus is gained or lost. |
| */ |
| OS.InvalidateRect (handle, null, false); |
| return result; |
| } |
| |
| LRESULT WM_LBUTTONDBLCLK (int wParam, int lParam) { |
| TVHITTESTINFO lpht = new TVHITTESTINFO (); |
| lpht.x = (short) (lParam & 0xFFFF); |
| lpht.y = (short) (lParam >> 16); |
| OS.SendMessage (handle, OS.TVM_HITTEST, 0, lpht); |
| if (lpht.hItem != 0) { |
| if ((style & SWT.CHECK) != 0) { |
| if ((lpht.flags & OS.TVHT_ONITEMSTATEICON) != 0) { |
| sendMouseEvent (SWT.MouseDown, 1, handle, OS.WM_LBUTTONDOWN, wParam, lParam); |
| sendMouseEvent (SWT.MouseDoubleClick, 1, handle, OS.WM_LBUTTONDBLCLK, wParam, lParam); |
| if (OS.GetCapture () != handle) OS.SetCapture (handle); |
| TVITEM tvItem = new TVITEM (); |
| tvItem.hItem = lpht.hItem; |
| tvItem.mask = OS.TVIF_PARAM | OS.TVIF_STATE; |
| tvItem.stateMask = OS.TVIS_STATEIMAGEMASK; |
| OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); |
| int state = tvItem.state >> 12; |
| if ((state & 0x1) != 0) { |
| state++; |
| } else { |
| --state; |
| } |
| tvItem.state = state << 12; |
| OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); |
| if (!OS.IsWinCE) { |
| int id = tvItem.hItem; |
| if (OS.COMCTL32_MAJOR >= 6) { |
| id = OS.SendMessage (handle, OS.TVM_MAPHTREEITEMTOACCID, tvItem.hItem, 0); |
| } |
| OS.NotifyWinEvent (OS.EVENT_OBJECT_FOCUS, handle, OS.OBJID_CLIENT, id); |
| } |
| Event event = new Event (); |
| event.item = _getItem (tvItem.hItem, tvItem.lParam); |
| event.detail = SWT.CHECK; |
| postEvent (SWT.Selection, event); |
| return LRESULT.ZERO; |
| } |
| } |
| } |
| LRESULT result = super.WM_LBUTTONDBLCLK (wParam, lParam); |
| if (lpht.hItem != 0) { |
| int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); |
| if ((bits & OS.TVS_FULLROWSELECT) != 0 || (lpht.flags & OS.TVHT_ONITEM) != 0) { |
| Event event = new Event (); |
| TVITEM tvItem = new TVITEM (); |
| tvItem.hItem = lpht.hItem; |
| tvItem.mask = OS.TVIF_PARAM; |
| OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); |
| event.item = _getItem (tvItem.hItem, tvItem.lParam); |
| postEvent (SWT.DefaultSelection, event); |
| } |
| } |
| return result; |
| } |
| |
| LRESULT WM_LBUTTONDOWN (int wParam, int lParam) { |
| /* |
| * In a multi-select tree, if the user is collapsing a subtree that |
| * contains selected items, clear the selection from these items and |
| * issue a selection event. Only items that are selected and visible |
| * are cleared. This code also runs in the case when no item is selected. |
| */ |
| TVHITTESTINFO lpht = new TVHITTESTINFO (); |
| lpht.x = (short) (lParam & 0xFFFF); |
| lpht.y = (short) (lParam >> 16); |
| OS.SendMessage (handle, OS.TVM_HITTEST, 0, lpht); |
| if (lpht.hItem == 0 || (lpht.flags & OS.TVHT_ONITEMBUTTON) != 0) { |
| sendMouseEvent (SWT.MouseDown, 1, handle, OS.WM_LBUTTONDOWN, wParam, lParam); |
| boolean fixSelection = false, deselected = false; |
| if (lpht.hItem != 0 && (style & SWT.MULTI) != 0) { |
| int hSelection = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0); |
| if (hSelection != 0) { |
| TVITEM tvItem = new TVITEM (); |
| tvItem.mask = OS.TVIF_STATE | OS.TVIF_PARAM; |
| tvItem.hItem = lpht.hItem; |
| OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); |
| if ((tvItem.state & OS.TVIS_EXPANDED) != 0) { |
| fixSelection = true; |
| tvItem.stateMask = OS.TVIS_SELECTED; |
| int hParent = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_PARENT, lpht.hItem); |
| int hNext = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXTVISIBLE, lpht.hItem); |
| while (hNext != 0) { |
| tvItem.hItem = hNext; |
| OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); |
| if ((tvItem.state & OS.TVIS_SELECTED) != 0) deselected = true; |
| tvItem.state = 0; |
| OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); |
| if ((hNext = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXTVISIBLE, hNext)) == 0) break; |
| if (hParent == OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_PARENT, hNext)) break; |
| } |
| } |
| } |
| } |
| dragStarted = gestureCompleted = false; |
| if (fixSelection) ignoreDeselect = ignoreSelect = lockSelection = true; |
| int code = callWindowProc (handle, OS.WM_LBUTTONDOWN, wParam, lParam); |
| if (fixSelection) ignoreDeselect = ignoreSelect = lockSelection = false; |
| if (dragStarted && OS.GetCapture () != handle) OS.SetCapture (handle); |
| if (deselected) { |
| TVITEM tvItem = new TVITEM (); |
| tvItem.mask = OS.TVIF_PARAM; |
| tvItem.hItem = lpht.hItem; |
| OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); |
| Event event = new Event (); |
| event.item = _getItem (tvItem.hItem, tvItem.lParam); |
| postEvent (SWT.Selection, event); |
| } |
| return new LRESULT (code); |
| } |
| |
| /* Look for check/uncheck */ |
| if ((style & SWT.CHECK) != 0) { |
| if ((lpht.flags & OS.TVHT_ONITEMSTATEICON) != 0) { |
| sendMouseEvent (SWT.MouseDown, 1, handle, OS.WM_LBUTTONDOWN, wParam, lParam); |
| if (OS.GetCapture () != handle) OS.SetCapture (handle); |
| TVITEM tvItem = new TVITEM (); |
| tvItem.hItem = lpht.hItem; |
| tvItem.mask = OS.TVIF_PARAM | OS.TVIF_STATE; |
| tvItem.stateMask = OS.TVIS_STATEIMAGEMASK; |
| OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); |
| int state = tvItem.state >> 12; |
| if ((state & 0x1) != 0) { |
| state++; |
| } else { |
| --state; |
| } |
| tvItem.state = state << 12; |
| OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); |
| if (!OS.IsWinCE) { |
| int id = tvItem.hItem; |
| if (OS.COMCTL32_MAJOR >= 6) { |
| id = OS.SendMessage (handle, OS.TVM_MAPHTREEITEMTOACCID, tvItem.hItem, 0); |
| } |
| OS.NotifyWinEvent (OS.EVENT_OBJECT_FOCUS, handle, OS.OBJID_CLIENT, id); |
| } |
| Event event = new Event (); |
| event.item = _getItem (tvItem.hItem, tvItem.lParam); |
| event.detail = SWT.CHECK; |
| postEvent (SWT.Selection, event); |
| return LRESULT.ZERO; |
| } |
| } |
| |
| /* Get the selected state of the item under the mouse */ |
| TVITEM tvItem = new TVITEM (); |
| tvItem.mask = OS.TVIF_STATE; |
| tvItem.stateMask = OS.TVIS_SELECTED; |
| boolean hittestSelected = false; |
| if ((style & SWT.MULTI) != 0) { |
| tvItem.hItem = lpht.hItem; |
| OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); |
| hittestSelected = (tvItem.state & OS.TVIS_SELECTED) != 0; |
| } |
| |
| /* Get the selected state of the last selected item */ |
| int hOldItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0); |
| if ((style & SWT.MULTI) != 0) { |
| tvItem.hItem = hOldItem; |
| OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); |
| |
| /* Check for CONTROL or drag selection */ |
| if (hittestSelected || (wParam & OS.MK_CONTROL) != 0) { |
| if (drawCount == 0) { |
| OS.UpdateWindow (handle); |
| OS.DefWindowProc (handle, OS.WM_SETREDRAW, 0, 0); |
| /* |
| * This code is intentionally commented. |
| */ |
| // OS.SendMessage (handle, OS.WM_SETREDRAW, 0, 0); |
| } |
| } else { |
| deselectAll (); |
| } |
| } |
| |
| /* Do the selection */ |
| sendMouseEvent (SWT.MouseDown, 1, handle, OS.WM_LBUTTONDOWN, wParam, lParam); |
| dragStarted = gestureCompleted = false; |
| ignoreDeselect = ignoreSelect = true; |
| int code = callWindowProc (handle, OS.WM_LBUTTONDOWN, wParam, lParam); |
| ignoreDeselect = ignoreSelect = false; |
| if (dragStarted && OS.GetCapture () != handle) OS.SetCapture (handle); |
| int hNewItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0); |
| |
| /* |
| * Feature in Windows. When the old and new focused item |
| * are the same, Windows does not check to make sure that |
| * the item is actually selected, not just focused. The |
| * fix is to force the item to draw selected by setting |
| * the state mask. This is only necessary when the tree |
| * is single select. |
| */ |
| if ((style & SWT.SINGLE) != 0) { |
| if (hOldItem == hNewItem) { |
| tvItem.mask = OS.TVIF_STATE; |
| tvItem.state = OS.TVIS_SELECTED; |
| tvItem.stateMask = OS.TVIS_SELECTED; |
| tvItem.hItem = hNewItem; |
| OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); |
| } |
| } |
| |
| /* Reselect the last item that was unselected */ |
| if ((style & SWT.MULTI) != 0) { |
| |
| /* Check for CONTROL and reselect the last item */ |
| if (hittestSelected || (wParam & OS.MK_CONTROL) != 0) { |
| if (hOldItem == hNewItem && hOldItem == lpht.hItem) { |
| if ((wParam & OS.MK_CONTROL) != 0) { |
| tvItem.state ^= OS.TVIS_SELECTED; |
| if (dragStarted) tvItem.state = OS.TVIS_SELECTED; |
| OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); |
| } |
| } else { |
| if ((tvItem.state & OS.TVIS_SELECTED) != 0) { |
| tvItem.state = OS.TVIS_SELECTED; |
| OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); |
| } |
| if ((wParam & OS.MK_CONTROL) != 0 && !dragStarted) { |
| if (hittestSelected) { |
| tvItem.state = 0; |
| tvItem.hItem = lpht.hItem; |
| OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); |
| } |
| } |
| } |
| if (drawCount == 0) { |
| RECT rect1 = new RECT (), rect2 = new RECT (); |
| rect1.left = hOldItem; rect2.left = hNewItem; |
| int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); |
| int fItemRect = (bits & OS.TVS_FULLROWSELECT) != 0 ? 0 : 1; |
| OS.SendMessage (handle, OS.TVM_GETITEMRECT, fItemRect, rect1); |
| OS.SendMessage (handle, OS.TVM_GETITEMRECT, fItemRect, rect2); |
| /* |
| * This code is intentionally commented. |
| */ |
| // OS.SendMessage (handle, OS.WM_SETREDRAW, 1, 0); |
| OS.DefWindowProc (handle, OS.WM_SETREDRAW, 1, 0); |
| if (OS.IsWinCE) { |
| OS.InvalidateRect (handle, rect1, false); |
| OS.InvalidateRect (handle, rect2, false); |
| OS.UpdateWindow (handle); |
| } else { |
| int flags = OS.RDW_UPDATENOW | OS.RDW_INVALIDATE; |
| OS.RedrawWindow (handle, rect1, 0, flags); |
| OS.RedrawWindow (handle, rect2, 0, flags); |
| } |
| } |
| } |
| |
| /* Check for SHIFT or normal select and delect/reselect items */ |
| if ((wParam & OS.MK_CONTROL) == 0) { |
| if (!hittestSelected || !dragStarted) { |
| tvItem.state = 0; |
| int oldProc = OS.GetWindowLong (handle, OS.GWL_WNDPROC); |
| OS.SetWindowLong (handle, OS.GWL_WNDPROC, TreeProc); |
| if ((style & SWT.VIRTUAL) != 0) { |
| int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_ROOT, 0); |
| deselect (hItem, tvItem, hNewItem); |
| } else { |
| for (int i=0; i<items.length; i++) { |
| TreeItem item = items [i]; |
| if (item != null && item.handle != hNewItem) { |
| tvItem.hItem = item.handle; |
| OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); |
| } |
| } |
| } |
| tvItem.hItem = hNewItem; |
| tvItem.state = OS.TVIS_SELECTED; |
| OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); |
| OS.SetWindowLong (handle, OS.GWL_WNDPROC, oldProc); |
| if ((wParam & OS.MK_SHIFT) != 0) { |
| RECT rect1 = new RECT (); |
| if (hAnchor == 0) hAnchor = hNewItem; |
| rect1.left = hAnchor; |
| if (OS.SendMessage (handle, OS.TVM_GETITEMRECT, 1, rect1) != 0) { |
| RECT rect2 = rect2 = new RECT (); |
| rect2.left = hNewItem; |
| OS.SendMessage (handle, OS.TVM_GETITEMRECT, 1, rect2); |
| int flags = rect1.top < rect2.top ? OS.TVGN_NEXTVISIBLE : OS.TVGN_PREVIOUSVISIBLE; |
| tvItem.state = OS.TVIS_SELECTED; |
| int hItem = tvItem.hItem = hAnchor; |
| OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); |
| while (hItem != hNewItem) { |
| tvItem.hItem = hItem; |
| OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); |
| hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, flags, hItem); |
| } |
| } |
| } |
| } |
| } |
| } |
| if ((wParam & OS.MK_SHIFT) == 0) hAnchor = hNewItem; |
| |
| /* Issue notification */ |
| if (!gestureCompleted) { |
| tvItem.hItem = hNewItem; |
| tvItem.mask = OS.TVIF_PARAM; |
| OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); |
| Event event = new Event (); |
| event.item = _getItem (tvItem.hItem, tvItem.lParam); |
| postEvent (SWT.Selection, event); |
| } |
| gestureCompleted = false; |
| |
| /* |
| * Feature in Windows. Inside WM_LBUTTONDOWN and WM_RBUTTONDOWN, |
| * the widget starts a modal loop to determine if the user wants |
| * to begin a drag/drop operation or marque select. Unfortunately, |
| * this modal loop eats the corresponding mouse up. The fix is to |
| * detect the cases when the modal loop has eaten the mouse up and |
| * issue a fake mouse up. |
| */ |
| if (dragStarted) { |
| Event event = new Event (); |
| event.x = (short) (lParam & 0xFFFF); |
| event.y = (short) (lParam >> 16); |
| postEvent (SWT.DragDetect, event); |
| } else { |
| sendMouseEvent (SWT.MouseUp, 1, handle, OS.WM_LBUTTONUP, wParam, lParam); |
| } |
| dragStarted = false; |
| return new LRESULT (code); |
| } |
| |
| LRESULT WM_MOVE (int wParam, int lParam) { |
| if (ignoreResize) return null; |
| return super.WM_MOVE (wParam, lParam); |
| } |
| |
| LRESULT WM_NOTIFY (int wParam, int lParam) { |
| NMHDR hdr = new NMHDR (); |
| OS.MoveMemory (hdr, lParam, NMHDR.sizeof); |
| if (hwndHeader != 0 && hdr.hwndFrom == hwndHeader) { |
| /* |
| * Feature in Windows. On NT, the automatically created |
| * header control is created as a UNICODE window, not an |
| * ANSI window despite the fact that the parent is created |
| * as an ANSI window. This means that it sends UNICODE |
| * notification messages to the parent window on NT for |
| * no good reason. The data and size in the NMHEADER and |
| * HDITEM structs is identical between the platforms so no |
| * different message is actually necessary. Despite this, |
| * Windows sends different messages. The fix is to look |
| * for both messages, despite the platform. This works |
| * because only one will be sent on either platform, never |
| * both. |
| */ |
| switch (hdr.code) { |
| case OS.HDN_BEGINTRACKW: |
| case OS.HDN_BEGINTRACKA: |
| case OS.HDN_DIVIDERDBLCLICKW: |
| case OS.HDN_DIVIDERDBLCLICKA: { |
| NMHEADER phdn = new NMHEADER (); |
| OS.MoveMemory (phdn, lParam, NMHEADER.sizeof); |
| TreeColumn column = columns [phdn.iItem]; |
| if (column != null && !column.getResizable ()) { |
| return LRESULT.ONE; |
| } |
| ignoreColumnMove = true; |
| break; |
| } |
| case OS.NM_RELEASEDCAPTURE: { |
| if (!ignoreColumnMove) { |
| int count = OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); |
| for (int i=0; i<count; i++) { |
| TreeColumn column = columns [i]; |
| column.updateToolTip (i); |
| } |
| updateImageList (); |
| } |
| ignoreColumnMove = false; |
| break; |
| } |
| case OS.HDN_BEGINDRAG: { |
| if (ignoreColumnMove) return LRESULT.ONE; |
| NMHEADER phdn = new NMHEADER (); |
| OS.MoveMemory (phdn, lParam, NMHEADER.sizeof); |
| if (phdn.iItem != -1) { |
| TreeColumn column = columns [phdn.iItem]; |
| if (column != null && !column.getMoveable ()) { |
| ignoreColumnMove = true; |
| return LRESULT.ONE; |
| } |
| } |
| break; |
| } |
| case OS.HDN_ENDDRAG: { |
| NMHEADER phdn = new NMHEADER (); |
| OS.MoveMemory (phdn, lParam, NMHEADER.sizeof); |
| if (phdn.iItem != -1 && phdn.pitem != 0) { |
| HDITEM pitem = new HDITEM (); |
| OS.MoveMemory (pitem, phdn.pitem, HDITEM.sizeof); |
| if ((pitem.mask & OS.HDI_ORDER) != 0 && pitem.iOrder != -1) { |
| int count = OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); |
| int [] order = new int [count]; |
| OS.SendMessage (hwndHeader, OS.HDM_GETORDERARRAY, count, order); |
| int index = 0; |
| while (index < order.length) { |
| if (order [index] == phdn.iItem) break; |
| index++; |
| } |
| if (index == order.length) index = 0; |
| if (index == pitem.iOrder) break; |
| int start = Math.min (index, pitem.iOrder); |
| int end = Math.max (index, pitem.iOrder); |
| RECT rect = new RECT (), itemRect = new RECT (); |
| OS.GetClientRect (handle, rect); |
| OS.SendMessage (hwndHeader, OS.HDM_GETITEMRECT, order [start], itemRect); |
| rect.left = Math.max (rect.left, itemRect.left); |
| OS.SendMessage (hwndHeader, OS.HDM_GETITEMRECT, order [end], itemRect); |
| rect.right = Math.min (rect.right, itemRect.right); |
| OS.InvalidateRect (handle, rect, true); |
| ignoreColumnMove = false; |
| for (int i=start; i<=end; i++) { |
| TreeColumn column = columns [order [i]]; |
| if (!column.isDisposed ()) { |
| column.postEvent (SWT.Move); |
| } |
| } |
| } |
| } |
| break; |
| } |
| case OS.HDN_ITEMCHANGINGW: |
| case OS.HDN_ITEMCHANGINGA: { |
| NMHEADER phdn = new NMHEADER (); |
| OS.MoveMemory (phdn, lParam, NMHEADER.sizeof); |
| if (phdn.pitem != 0) { |
| HDITEM newItem = new HDITEM (); |
| OS.MoveMemory (newItem, phdn.pitem, HDITEM.sizeof); |
| if ((newItem.mask & OS.HDI_WIDTH) != 0) { |
| RECT rect = new RECT (); |
| OS.GetClientRect (handle, rect); |
| RECT itemRect = new RECT (); |
| int count = OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); |
| int index = OS.SendMessage (hwndHeader, OS.HDM_ORDERTOINDEX, count - 1, 0); |
| OS.SendMessage (hwndHeader, OS.HDM_GETITEMRECT, index, itemRect); |
| rect.right = itemRect.right; |
| OS.SendMessage (hwndHeader, OS.HDM_GETITEMRECT, phdn.iItem, itemRect); |
| int gridWidth = getLinesVisible () ? GRID_WIDTH : 0; |
| rect.left = itemRect.right - gridWidth; |
| if (backgroundImage != null) { |
| OS.InvalidateRect (handle, rect, true); |
| } else { |
| HDITEM oldItem = new HDITEM (); |
| oldItem.mask = OS.HDI_WIDTH; |
| OS.SendMessage (hwndHeader, OS.HDM_GETITEM, phdn.iItem, oldItem); |
| int deltaX = newItem.cxy - oldItem.cxy; |
| int flags = OS.SW_INVALIDATE | OS.SW_ERASE; |
| OS.ScrollWindowEx (handle, deltaX, 0, rect, null, 0, null, flags); |
| } |
| //TODO - column flashes when resized and not double buffered |
| if (phdn.iItem != 0) { |
| rect.left = itemRect.left; |
| rect.right = itemRect.right; |
| OS.InvalidateRect (handle, rect, true); |
| } |
| setScrollWidth (); |
| } |
| } |
| break; |
| } |
| case OS.HDN_ITEMCHANGEDW: |
| case OS.HDN_ITEMCHANGEDA: { |
| NMHEADER phdn = new NMHEADER (); |
| OS.MoveMemory (phdn, lParam, NMHEADER.sizeof); |
| if (phdn.pitem != 0) { |
| HDITEM pitem = new HDITEM (); |
| OS.MoveMemory (pitem, phdn.pitem, HDITEM.sizeof); |
| if ((pitem.mask & OS.HDI_WIDTH) != 0) { |
| TreeColumn column = columns [phdn.iItem]; |
| if (column != null) { |
| column.updateToolTip (phdn.iItem); |
| column.sendEvent (SWT.Resize); |
| if (isDisposed ()) return LRESULT.ZERO; |
| int count = OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); |
| TreeColumn [] newColumns = new TreeColumn [count]; |
| System.arraycopy (columns, 0, newColumns, 0, count); |
| int [] order = new int [count]; |
| OS.SendMessage (hwndHeader, OS.HDM_GETORDERARRAY, count, order); |
| boolean moved = false; |
| for (int i=0; i<count; i++) { |
| TreeColumn nextColumn = newColumns [order [i]]; |
| if (moved && !nextColumn.isDisposed ()) { |
| nextColumn.updateToolTip (order [i]); |
| nextColumn.sendEvent (SWT.Move); |
| } |
| if (nextColumn == column) moved = true; |
| } |
| } |
| } |
| setScrollWidth (); |
| } |
| break; |
| } |
| case OS.HDN_ITEMCLICKW: |
| case OS.HDN_ITEMCLICKA: { |
| NMHEADER phdn = new NMHEADER (); |
| OS.MoveMemory (phdn, lParam, NMHEADER.sizeof); |
| TreeColumn column = columns [phdn.iItem]; |
| if (column != null) { |
| column.postEvent (SWT.Selection); |
| } |
| break; |
| } |
| case OS.HDN_ITEMDBLCLICKW: |
| case OS.HDN_ITEMDBLCLICKA: { |
| NMHEADER phdn = new NMHEADER (); |
| OS.MoveMemory (phdn, lParam, NMHEADER.sizeof); |
| TreeColumn column = columns [phdn.iItem]; |
| if (column != null) { |
| column.postEvent (SWT.DefaultSelection); |
| } |
| break; |
| } |
| } |
| } |
| return super.WM_NOTIFY (wParam, lParam); |
| } |
| |
| LRESULT WM_RBUTTONDOWN (int wParam, int lParam) { |
| /* |
| * Feature in Windows. The receiver uses WM_RBUTTONDOWN |
| * to initiate a drag/drop operation depending on how the |
| * user moves the mouse. If the user clicks the right button, |
| * without moving the mouse, the tree consumes the corresponding |
| * WM_RBUTTONUP. The fix is to avoid calling the window proc for |
| * the tree. |
| */ |
| sendMouseEvent (SWT.MouseDown, 3, handle, OS.WM_RBUTTONDOWN, wParam, lParam); |
| /* |
| * This code is intentionally commented. |
| */ |
| // if (OS.GetCapture () != handle) OS.SetCapture (handle); |
| setFocus (); |
| |
| /* |
| * Feature in Windows. When the user selects a tree item |
| * with the right mouse button, the item remains selected |
| * only as long as the user does not release or move the |
| * mouse. As soon as this happens, the selection snaps |
| * back to the previous selection. This behavior can be |
| * observed in the Explorer but is not instantly apparent |
| * because the Explorer explicity sets the selection when |
| * the user chooses a menu item. If the user cancels the |
| * menu, the selection snaps back. The fix is to avoid |
| * calling the window proc and do the selection ourselves. |
| * This behavior is consistent with the table. |
| */ |
| TVHITTESTINFO lpht = new TVHITTESTINFO (); |
| lpht.x = (short) (lParam & 0xFFFF); |
| lpht.y = (short) (lParam >> 16); |
| OS.SendMessage (handle, OS.TVM_HITTEST, 0, lpht); |
| if (lpht.hItem != 0) { |
| int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); |
| int flags = OS.TVHT_ONITEMICON | OS.TVHT_ONITEMLABEL; |
| if ((bits & OS.TVS_FULLROWSELECT) != 0 || (lpht.flags & flags) != 0) { |
| if ((wParam & (OS.MK_CONTROL | OS.MK_SHIFT)) == 0) { |
| TVITEM tvItem = new TVITEM (); |
| tvItem.mask = OS.TVIF_STATE; |
| tvItem.stateMask = OS.TVIS_SELECTED; |
| tvItem.hItem = lpht.hItem; |
| OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); |
| if ((tvItem.state & OS.TVIS_SELECTED) == 0) { |
| ignoreSelect = true; |
| OS.SendMessage (handle, OS.TVM_SELECTITEM, OS.TVGN_CARET, 0); |
| ignoreSelect = false; |
| OS.SendMessage (handle, OS.TVM_SELECTITEM, OS.TVGN_CARET, lpht.hItem); |
| } |
| } |
| } |
| } |
| return LRESULT.ZERO; |
| } |
| |
| LRESULT WM_PAINT (int wParam, int lParam) { |
| if (shrink) { |
| /* Resize the item array to fit the last item */ |
| int count = items.length - 1; |
| while (count >= 0) { |
| if (items [count] != null) break; |
| --count; |
| } |
| count++; |
| if (items.length > 4 && items.length - count > 3) { |
| int length = Math.max (4, (count + 3) / 4 * 4); |
| TreeItem [] newItems = new TreeItem [length]; |
| System.arraycopy (items, 0, newItems, 0, count); |
| items = newItems; |
| } |
| shrink = false; |
| } |
| if (backgroundImage != null) { |
| GC gc = null; |
| int paintDC = 0; |
| PAINTSTRUCT ps = new PAINTSTRUCT (); |
| if (hooks (SWT.Paint)) { |
| GCData data = new GCData (); |
| data.ps = ps; |
| data.hwnd = handle; |
| gc = GC.win32_new (this, data); |
| paintDC = gc.handle; |
| } else { |
| paintDC = OS.BeginPaint (handle, ps); |
| } |
| |
| //TODO - only double buffer the damage |
| // int x = ps.left, y = ps.top; |
| // int width = ps.right - ps.left; |
| // int height = ps.bottom - ps.top; |
| RECT rect = new RECT (); |
| OS.GetClientRect (handle, rect); |
| int x = rect.left, y = rect.top; |
| int width = rect.right - rect.left; |
| int height = rect.bottom - rect.top; |
| |
| int hDC = OS.CreateCompatibleDC (paintDC); |
| int hBitmap = OS.CreateCompatibleBitmap (paintDC, width, height); |
| int hOldBitmap = OS.SelectObject (hDC, hBitmap); |
| fillBackground (hDC, backgroundImage, rect); |
| int code = callWindowProc (handle, OS.WM_PAINT, hDC, 0); |
| OS.BitBlt (paintDC, x, y, width, height, hDC, 0, 0, OS.SRCCOPY); |
| OS.SelectObject (hDC, hOldBitmap); |
| OS.DeleteObject (hBitmap); |
| OS.DeleteObject (hDC); |
| if (hooks (SWT.Paint)) { |
| Event event = new Event (); |
| event.gc = gc; |
| event.x = ps.left; |
| event.y = ps.top; |
| event.width = ps.right - ps.left; |
| event.height = ps.bottom - ps.top; |
| sendEvent (SWT.Paint, event); |
| // widget could be disposed at this point |
| event.gc = null; |
| gc.dispose (); |
| } else { |
| OS.EndPaint (handle, ps); |
| } |
| return new LRESULT (code); |
| } |
| return super.WM_PAINT (wParam, lParam); |
| } |
| |
| LRESULT WM_PRINTCLIENT (int wParam, int lParam) { |
| LRESULT result = super.WM_PRINTCLIENT (wParam, lParam); |
| if (result != null) return result; |
| /* |
| * Feature in Windows. For some reason, when WM_PRINT is used |
| * to capture an image of a hierarchy that contains a tree with |
| * columns, the clipping that is used to stop the first column |
| * from drawing on top of subsequent columns stops the first |
| * column and the tree lines from drawing. This does not happen |
| * during WM_PAINT. The fix is to draw without clipping and |
| * then draw the rest of the columns on top. Since the drawing |
| * is happening in WM_PRINTCLIENT, the redrawing is not visible. |
| */ |
| printClient = true; |
| int code = callWindowProc (handle, OS.WM_PRINTCLIENT, wParam, lParam); |
| printClient = false; |
| return new LRESULT (code); |
| } |
| |
| LRESULT WM_SETFOCUS (int wParam, int lParam) { |
| LRESULT result = super.WM_SETFOCUS (wParam, lParam); |
| if ((style & SWT.SINGLE) != 0) return result; |
| /* |
| * Feature in Windows. When multiple item have |
| * the TVIS_SELECTED state, Windows redraws only |
| * the focused item in the color used to show the |
| * selection when the tree loses or gains focus. |
| * The fix is to force Windows to redraw all the |
| * visible items when focus is gained or lost. |
| */ |
| OS.InvalidateRect (handle, null, false); |
| return result; |
| } |
| |
| LRESULT WM_SETFONT (int wParam, int lParam) { |
| LRESULT result = super.WM_SETFONT (wParam, lParam); |
| if (result != null) return result; |
| if (hwndHeader != 0) { |
| OS.SendMessage (hwndHeader, OS.WM_SETFONT, wParam, lParam); |
| } |
| return result; |
| } |
| |
| LRESULT WM_SIZE (int wParam, int lParam) { |
| if (ignoreResize) return null; |
| return super.WM_SIZE (wParam, lParam); |
| } |
| |
| LRESULT WM_SYSCOLORCHANGE (int wParam, int lParam) { |
| LRESULT result = super.WM_SYSCOLORCHANGE (wParam, lParam); |
| if (result != null) return result; |
| if ((style & SWT.CHECK) != 0) setCheckboxImageList (); |
| return result; |
| } |
| |
| LRESULT wmColorChild (int wParam, int lParam) { |
| if (backgroundImage != null) { |
| if (OS.COMCTL32_MAJOR < 6) { |
| //FIXME - TEMPORARY CODE |
| state |= TRANSPARENT; |
| LRESULT result = super.wmColorChild (wParam, lParam); |
| state &= ~TRANSPARENT; |
| return result; |
| } |
| return new LRESULT (OS.GetStockObject (OS.NULL_BRUSH)); |
| } |
| /* |
| * Feature in Windows. Tree controls send WM_CTLCOLOREDIT |
| * to allow application code to change the default colors. |
| * This is undocumented and conflicts with TVM_SETTEXTCOLOR |
| * and TVM_SETBKCOLOR, the documented way to do this. The |
| * fix is to ignore WM_CTLCOLOREDIT messages from trees. |
| */ |
| return null; |
| } |
| |
| LRESULT wmNotifyChild (int wParam, int lParam) { |
| NMHDR hdr = new NMHDR (); |
| OS.MoveMemory (hdr, lParam, NMHDR.sizeof); |
| switch (hdr.code) { |
| case OS.TVN_GETDISPINFOA: |
| case OS.TVN_GETDISPINFOW: { |
| NMTVDISPINFO lptvdi = new NMTVDISPINFO (); |
| OS.MoveMemory (lptvdi, lParam, NMTVDISPINFO.sizeof); |
| if ((style & SWT.VIRTUAL) != 0) { |
| if (lptvdi.lParam == -1) { |
| if (drawCount != 0 || !OS.IsWindowVisible (handle)) break; |
| RECT itemRect = new RECT (); |
| itemRect.left = lptvdi.hItem; |
| if (OS.SendMessage (handle, OS.TVM_GETITEMRECT, 0, itemRect) == 0) { |
| break; |
| } |
| RECT rect = new RECT (); |
| OS.GetClientRect (handle, rect); |
| if (!OS.IntersectRect (rect, rect, itemRect)) break; |
| } |
| } |
| /* |
| * Feature in Windows. When a new tree item is inserted |
| * using TVM_INSERTITEM, a TVN_GETDISPINFO is sent before |
| * TVM_INSERTITEM returns and before the item is added to |
| * the items array. The fix is to check for null. |
| * |
| * NOTE: This only happens on XP with the version 6.00 of |
| * COMCTL32.DLL. |
| * |
| * Feature in Windows. When TVM_DELETEITEM is called with |
| * TVI_ROOT to remove all items from a tree, under certain |
| * circumstances, the tree sends TVN_GETDISPINFO for items |
| * that are about to be disposed. The fix is to check for |
| * disposed items. |
| */ |
| if (items == null) break; |
| TreeItem item = _getItem (lptvdi.hItem, lptvdi.lParam); |
| if (item == null) break; |
| if (item.isDisposed ()) break; |
| if ((style & SWT.VIRTUAL) != 0) { |
| if (!item.cached) { |
| if (!checkData (item, false)) break; |
| } |
| } |
| int index = 0; |
| if (hwndHeader != 0) { |
| index = OS.SendMessage (hwndHeader, OS.HDM_ORDERTOINDEX, 0, 0); |
| } |
| if ((lptvdi.mask & OS.TVIF_TEXT) != 0) { |
| String string = null; |
| if (index == 0) { |
| string = item.text; |
| } else { |
| String [] strings = item.strings; |
| if (strings != null) string = strings [index]; |
| } |
| if (string != null) { |
| TCHAR buffer = new TCHAR (getCodePage (), string, false); |
| int byteCount = Math.min (buffer.length (), lptvdi.cchTextMax - 1) * TCHAR.sizeof; |
| OS.MoveMemory (lptvdi.pszText, buffer, byteCount); |
| OS.MoveMemory (lptvdi.pszText + byteCount, new byte [TCHAR.sizeof], TCHAR.sizeof); |
| lptvdi.cchTextMax = Math.min (lptvdi.cchTextMax, string.length () + 1); |
| } |
| } |
| if ((lptvdi.mask & (OS.TVIF_IMAGE | OS.TVIF_SELECTEDIMAGE)) != 0) { |
| Image image = null; |
| if (index == 0) { |
| image = item.image; |
| } else { |
| Image [] images = item.images; |
| if (images != null) image = images [index]; |
| } |
| lptvdi.iImage = lptvdi.iSelectedImage = OS.I_IMAGENONE; |
| if (image != null) { |
| lptvdi.iImage = lptvdi.iSelectedImage = imageIndex (image, index); |
| } |
| } |
| OS.MoveMemory (lParam, lptvdi, NMTVDISPINFO.sizeof); |
| break; |
| } |
| case OS.NM_CUSTOMDRAW: { |
| if (hdr.hwndFrom == hwndHeader) break; |
| if (!customDraw) { |
| if (backgroundImage == null) break; |
| } |
| NMTVCUSTOMDRAW nmcd = new NMTVCUSTOMDRAW (); |
| OS.MoveMemory (nmcd, lParam, NMTVCUSTOMDRAW.sizeof); |
| switch (nmcd.dwDrawStage) { |
| case OS.CDDS_PREPAINT: { |
| // if (drawCount != 0 || !OS.IsWindowVisible (handle)) { |
| // if (!OS.IsWinCE && OS.WindowFromDC (nmcd.hdc) == handle) break; |
| // } |
| return new LRESULT (OS.CDRF_NOTIFYITEMDRAW | OS.CDRF_NOTIFYPOSTPAINT); |
| } |
| case OS.CDDS_POSTPAINT: { |
| if (linesVisible) { |
| int hDC = nmcd.hdc; |
| if (hwndHeader != 0) { |
| int x = 0; |
| RECT rect = new RECT (); |
| HDITEM hdItem = new HDITEM (); |
| hdItem.mask = OS.HDI_WIDTH; |
| int count = OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); |
| for (int i=0; i<count; i++) { |
| int index = OS.SendMessage (hwndHeader, OS.HDM_ORDERTOINDEX, i, 0); |
| OS.SendMessage (hwndHeader, OS.HDM_GETITEM, index, hdItem); |
| OS.SetRect (rect, x, nmcd.top, x + hdItem.cxy, nmcd.bottom); |
| OS.DrawEdge (hDC, rect, OS.BDR_SUNKENINNER, OS.BF_RIGHT); |
| x += hdItem.cxy; |
| } |
| } |
| int height = 0; |
| RECT rect = new RECT (); |
| int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_LASTVISIBLE, 0); |
| if (hItem != 0) { |
| rect.left = hItem; |
| if (OS.SendMessage (handle, OS.TVM_GETITEMRECT, 0, rect) != 0) { |
| height = rect.bottom - rect.top; |
| } |
| } |
| if (height == 0) { |
| height = OS.SendMessage (handle, OS.TVM_GETITEMHEIGHT, 0, 0); |
| OS.GetClientRect (handle, rect); |
| OS.SetRect (rect, rect.left, rect.top, rect.right, rect.top + height); |
| OS.DrawEdge (hDC, rect, OS.BDR_SUNKENINNER, OS.BF_BOTTOM); |
| } |
| while (rect.bottom < nmcd.bottom) { |
| int top = rect.top + height; |
| OS.SetRect (rect, rect.left, top, rect.right, top + height); |
| OS.DrawEdge (hDC, rect, OS.BDR_SUNKENINNER, OS.BF_BOTTOM); |
| } |
| } |
| return new LRESULT (OS.CDRF_DODEFAULT); |
| } |
| case OS.CDDS_ITEMPREPAINT: { |
| /* |
| * Feature in Windows. When a new tree item is inserted |
| * using TVM_INSERTITEM and the tree is using custom draw, |
| * a NM_CUSTOMDRAW is sent before TVM_INSERTITEM returns |
| * and before the item is added to the items array. The |
| * fix is to check for null. |
| * |
| * NOTE: This only happens on XP with the version 6.00 of |
| * COMCTL32.DLL, |
| */ |
| TreeItem item = _getItem (nmcd.dwItemSpec, nmcd.lItemlParam); |
| if (item == null) break; |
| if (nmcd.left >= nmcd.right || nmcd.top >= nmcd.bottom) { |
| break; |
| } |
| int hDC = nmcd.hdc; |
| OS.SaveDC (hDC); |
| if (linesVisible) { |
| RECT rect = new RECT (); |
| OS.SetRect (rect, nmcd.left, nmcd.top, nmcd.right, nmcd.bottom); |
| OS.DrawEdge (hDC, rect, OS.BDR_SUNKENINNER, OS.BF_BOTTOM); |
| } |
| int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); |
| if (!printClient && (bits & OS.TVS_FULLROWSELECT) == 0) { |
| if (hwndHeader != 0) { |
| int count = OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); |
| if (count != 0) { |
| HDITEM hdItem = new HDITEM (); |
| hdItem.mask = OS.HDI_WIDTH; |
| int index = OS.SendMessage (hwndHeader, OS.HDM_ORDERTOINDEX, 0, 0); |
| OS.SendMessage (hwndHeader, OS.HDM_GETITEM, index, hdItem); |
| int hRgn = OS.CreateRectRgn (nmcd.left, nmcd.top, nmcd.left + hdItem.cxy, nmcd.bottom); |
| OS.SelectClipRgn (hDC, hRgn); |
| OS.DeleteObject (hRgn); |
| } |
| } |
| } |
| if (item.font == -1 && item.foreground == -1 && item.background == -1) { |
| if (item.cellForeground == null && item.cellBackground == null && item.cellFont == null) { |
| return new LRESULT (OS.CDRF_DODEFAULT | OS.CDRF_NOTIFYPOSTPAINT); |
| } |
| } |
| int hFont = item.cellFont != null ? item.cellFont [0] : -1; |
| if (hFont == -1) hFont = item.font; |
| if (hFont != -1) OS.SelectObject (hDC, hFont); |
| if (OS.IsWindowEnabled (handle)) { |
| boolean useColor = true; |
| TVITEM tvItem = new TVITEM (); |
| tvItem.mask = OS.TVIF_STATE; |
| tvItem.hItem = item.handle; |
| OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); |
| if ((tvItem.state & (OS.TVIS_SELECTED | OS.TVIS_DROPHILITED)) != 0) { |
| useColor = false; |
| /* |
| * Feature in Windows. When the mouse is pressed and the |
| * selection is first drawn for a tree, the previously |
| * selected item is redrawn but the the TVIS_SELECTED bits |
| * are not cleared. When the user moves the mouse slightly |
| * and a drag and drop operation is not started, the item is |
| * drawn again and this time with TVIS_SELECTED is cleared. |
| * This means that an item that contains colored cells will |
| * not draw with the correct background until the mouse is |
| * moved. The fix is to test for the selection colors and |
| * guess that the item is not selected. |
| * |
| * NOTE: This code does not work when the foreground and |
| * background of the tree are set to the selection colors |
| * but this does not happen in a regular application. |
| */ |
| if (handle == OS.GetFocus ()) { |
| if (OS.GetTextColor (hDC) != OS.GetSysColor (OS.COLOR_HIGHLIGHTTEXT)) { |
| useColor = true; |
| } else { |
| if (OS.GetBkColor (hDC) != OS.GetSysColor (OS.COLOR_HIGHLIGHT)) { |
| useColor = true; |
| } |
| } |
| } |
| } |
| if (useColor) { |
| int clrText = item.cellForeground != null ? item.cellForeground [0] : -1; |
| if (clrText == -1) clrText = item.foreground; |
| nmcd.clrText = clrText == -1 ? getForegroundPixel () : clrText; |
| int clrTextBk = item.cellBackground != null ? item.cellBackground [0] : -1; |
| if (clrTextBk == -1) clrTextBk = item.background; |
| nmcd.clrTextBk = clrTextBk == -1 ? getBackgroundPixel () : clrTextBk; |
| OS.MoveMemory (lParam, nmcd, NMTVCUSTOMDRAW.sizeof); |
| } |
| } |
| return new LRESULT (OS.CDRF_NEWFONT | OS.CDRF_NOTIFYPOSTPAINT); |
| } |
| case OS.CDDS_ITEMPOSTPAINT: { |
| TreeItem item = _getItem (nmcd.dwItemSpec, nmcd.lItemlParam); |
| if (item == null) break; |
| /* |
| * Feature in Windows. Under certain circumstances, Windows |
| * sends CDDS_ITEMPOSTPAINT for an empty rectangle. This is |
| * not a problem providing that graphics do not occur outside |
| * the rectangle. The fix is to test for the rectangle and |
| * draw nothing. |
| * |
| * NOTE: This seems to happen when both I_IMAGECALLBACK |
| * and LPSTR_TEXTCALLBACK are used at the same time with |
| * TVM_SETITEM. |
| */ |
| if (nmcd.left >= nmcd.right || nmcd.top >= nmcd.bottom) { |
| break; |
| } |
| int hDC = nmcd.hdc; |
| OS.RestoreDC (hDC, -1); |
| int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); |
| if (backgroundImage != null) OS.SetBkMode (hDC, OS.TRANSPARENT); |
| boolean useColor = OS.IsWindowEnabled (handle); |
| if (useColor) { |
| if ((bits & OS.TVS_FULLROWSELECT) != 0) { |
| TVITEM tvItem = new TVITEM (); |
| tvItem.mask = OS.TVIF_STATE; |
| tvItem.hItem = item.handle; |
| OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); |
| if ((tvItem.state & (OS.TVIS_SELECTED | OS.TVIS_DROPHILITED)) != 0) { |
| useColor = false; |
| /* |
| * Feature in Windows. When the mouse is pressed and the |
| * selection is first drawn for a tree, the previously |
| * selected item is redrawn but the the TVIS_SELECTED bits |
| * are not cleared. When the user moves the mouse slightly |
| * and a drag and drop operation is not started, the item is |
| * drawn again and this time with TVIS_SELECTED is cleared. |
| * This means that an item that contains colored cells will |
| * not draw with the correct background until the mouse is |
| * moved. The fix is to test for the selection colors and |
| * guess that the item is not selected. |
| * |
| * NOTE: This code does not work when the foreground and |
| * background of the tree are set to the selection colors |
| * but this does not happen in a regular application. |
| */ |
| if (handle == OS.GetFocus ()) { |
| if (OS.GetTextColor (hDC) != OS.GetSysColor (OS.COLOR_HIGHLIGHTTEXT)) { |
| useColor = true; |
| } else { |
| if (OS.GetBkColor (hDC) != OS.GetSysColor (OS.COLOR_HIGHLIGHT)) { |
| useColor = true; |
| } |
| } |
| } |
| } else { |
| /* |
| * Feature in Windows. When the mouse is pressed and the |
| * selection is first drawn for a tree, the item is drawn |
| * selected, but the TVIS_SELECTED bits for the item are |
| * not set. When the user moves the mouse slightly and |
| * a drag and drop operation is not started, the item is |
| * drawn again and this time TVIS_SELECTED is set. This |
| * means that an item that is in a tree that has the style |
| * TVS_FULLROWSELECT and that also contains colored cells |
| * will not draw the entire row selected until the user |
| * moves the mouse. The fix is to test for the selection |
| * colors and guess that the item is selected. |
| * |
| * NOTE: This code does not work when the foreground and |
| * background of the tree are set to the selection colors |
| * but this does not happen in a regular application. |
| */ |
| if (OS.GetTextColor (hDC) == OS.GetSysColor (OS.COLOR_HIGHLIGHTTEXT)) { |
| if (OS.GetBkColor (hDC) == OS.GetSysColor (OS.COLOR_HIGHLIGHT)) { |
| useColor = false; |
| } |
| } |
| } |
| } |
| } |
| GCData data = new GCData(); |
| data.device = display; |
| GC gc = GC.win32_new (hDC, data); |
| int x = 0, gridWidth = linesVisible ? GRID_WIDTH : 0; |
| Point size = null; |
| int count = hwndHeader != 0 ? OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0) : 0; |
| for (int i=0; i<Math.max (1, count); i++) { |
| boolean drawItem = true; |
| int index = i, width = nmcd.right - nmcd.left; |
| if (count > 0 && hwndHeader != 0) { |
| HDITEM hdItem = new HDITEM (); |
| hdItem.mask = OS.HDI_WIDTH; |
| index = OS.SendMessage (hwndHeader, OS.HDM_ORDERTOINDEX, i, 0); |
| OS.SendMessage (hwndHeader, OS.HDM_GETITEM, index, hdItem); |
| width = hdItem.cxy; |
| } |
| RECT rect = new RECT (); |
| if (i == 0) { |
| drawItem = false; |
| if (useColor) { |
| if (backgroundImage != null) { |
| /* |
| * Feature in Windows. When the mouse is pressed in a |
| * single select tree, the previous item is no longer |
| * selected, but the TVIS_SELECTED bits for that item |
| * are not set. The fix is to test for the selection |
| * colors and guess that the item is selected. |
| * |
| * NOTE: This code does not work when the foreground and |
| * background of the tree are set to the selection colors |
| * but this does not happen in a regular application. |
| */ |
| boolean selected = false; |
| if ((style & SWT.SINGLE) != 0) { |
| if (OS.GetTextColor (hDC) == OS.GetSysColor (OS.COLOR_HIGHLIGHTTEXT)) { |
| if (OS.GetBkColor (hDC) == OS.GetSysColor (OS.COLOR_HIGHLIGHT)) { |
| selected = true; |
| } |
| } |
| } else { |
| TVITEM tvItem = new TVITEM (); |
| tvItem.mask = OS.TVIF_STATE; |
| tvItem.hItem = item.handle; |
| OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); |
| selected = (tvItem.state & (OS.TVIS_SELECTED | OS.TVIS_DROPHILITED)) != 0; |
| } |
| if (!selected) { |
| rect.left = item.handle; |
| if (OS.SendMessage (handle, OS.TVM_GETITEMRECT, 1, rect) != 0) { |
| drawItem = true; |
| int right = Math.min (rect.right, width); |
| OS.SetRect (rect, rect.left, rect.top, right, rect.bottom); |
| fillBackground (hDC, backgroundImage, rect); |
| if (handle == OS.GetFocus ()) { |
| int uiState = OS.SendMessage (handle, OS.WM_QUERYUISTATE, 0, 0); |
| if ((uiState & OS.UISF_HIDEFOCUS) == 0) { |
| int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0); |
| if (hItem == item.handle) OS.DrawFocusRect (hDC, rect); |
| } |
| } |
| rect.left = Math.min (rect.right, rect.left + 2); |
| } |
| } |
| } |
| OS.SetTextColor (hDC, getForegroundPixel ()); |
| OS.SetBkColor (hDC, getBackgroundPixel ()); |
| } |
| } else { |
| OS.SetRect (rect, x, nmcd.top, x + width, nmcd.bottom - gridWidth); |
| } |
| if (drawItem) { |
| int clrTextBk = -1; |
| if (useColor) { |
| clrTextBk = item.cellBackground != null ? item.cellBackground [index] : -1; |
| if (clrTextBk == -1) clrTextBk = item.background; |
| } |
| if (clrTextBk == -1) { |
| if (printClient || (bits & OS.TVS_FULLROWSELECT) != 0) { |
| clrTextBk = OS.GetBkColor (hDC); |
| } |
| } |
| if (clrTextBk != -1) { |
| if (backgroundImage != null) { |
| fillBackground (hDC, backgroundImage, rect); |
| } else { |
| fillBackground (hDC, clrTextBk, rect); |
| } |
| } |
| if (i > 0) { |
| Image image = null; |
| if (index == 0) { |
| image = item.image; |
| } else { |
| Image [] images = item.images; |
| if (images != null) image = images [index]; |
| } |
| if (image != null) { |
| Rectangle bounds = image.getBounds (); |
| if (size == null) size = getImageSize (); |
| gc.drawImage (image, 0, 0, bounds.width, bounds.height, rect.left, rect.top, size.x, size.y); |
| OS.SetRect (rect, rect.left + size.x + INSET, rect.top, rect.right - INSET, rect.bottom); |
| } else { |
| OS.SetRect (rect, rect.left + INSET, rect.top, rect.right - INSET, rect.bottom); |
| } |
| } |
| /* |
| * Bug in Windows. When DrawText() is used with DT_VCENTER |
| * and DT_ENDELLIPSIS, the ellipsis can draw outside of the |
| * rectangle when the rectangle is empty. The fix is avoid |
| * all text drawing for empty rectangles. |
| */ |
| if (rect.left < rect.right) { |
| String string = null; |
| if (index == 0) { |
| string = item.text; |
| } else { |
| String [] strings = item.strings; |
| if (strings != null) string = strings [index]; |
| } |
| if (string != null) { |
| int hFont = item.cellFont != null ? item.cellFont [index] : -1; |
| if (hFont == -1) hFont = item.font; |
| hFont = hFont != -1 ? OS.SelectObject (hDC, hFont) : -1; |
| int clrText = -1; |
| if (useColor) { |
| clrText = item.cellForeground != null ? item.cellForeground [index] : -1; |
| if (clrText == -1) clrText = item.foreground; |
| clrText = clrText != -1 ? OS.SetTextColor (hDC, clrText) : -1; |
| } |
| int oldMode = clrTextBk != -1 ? OS.SetBkMode (hDC, OS.TRANSPARENT) : -1; |
| int flags = OS.DT_NOPREFIX | OS.DT_SINGLELINE | OS.DT_VCENTER; |
| if (i != 0) flags |= OS.DT_ENDELLIPSIS; |
| flags |= OS.DT_LEFT; |
| TreeColumn column = columns != null ? columns [index] : null; |
| if (column != null) { |
| if ((column.style & SWT.LEFT) != 0) flags |= OS.DT_LEFT; |
| if ((column.style & SWT.CENTER) != 0) flags |= OS.DT_CENTER; |
| if ((column.style & SWT.RIGHT) != 0) flags |= OS.DT_RIGHT; |
| } |
| TCHAR buffer = new TCHAR (getCodePage (), string, false); |
| OS.DrawText (hDC, buffer, buffer.length (), rect, flags); |
| if (hFont != -1) OS.SelectObject (hDC, hFont); |
| if (clrText != -1) OS.SetTextColor (hDC, clrText); |
| if (oldMode != -1) OS.SetBkMode (hDC, oldMode); |
| } |
| } |
| } |
| x += width; |
| } |
| if (count > 0) { |
| if (printClient || (bits & OS.TVS_FULLROWSELECT) != 0) { |
| RECT rect = new RECT (); |
| OS.SetRect (rect, x, nmcd.top, nmcd.right, nmcd.bottom - gridWidth); |
| fillBackground (hDC, OS.GetBkColor (hDC), rect); |
| /* This code is intentionally commented */ |
| //drawBackground (hDC, rect); |
| } |
| } |
| gc.dispose (); |
| if (linesVisible) { |
| if (printClient && (bits & OS.TVS_FULLROWSELECT) != 0) { |
| if (hwndHeader != 0) { |
| if (OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0) != 0 && printClient) { |
| HDITEM hdItem = new HDITEM (); |
| hdItem.mask = OS.HDI_WIDTH; |
| OS.SendMessage (hwndHeader, OS.HDM_GETITEM, 0, hdItem); |
| RECT rect = new RECT (); |
| OS.SetRect (rect, nmcd.left + hdItem.cxy, nmcd.top, nmcd.right, nmcd.bottom); |
| OS.DrawEdge (hDC, rect, OS.BDR_SUNKENINNER, OS.BF_BOTTOM); |
| } |
| } |
| } |
| RECT rect = new RECT (); |
| if (OS.COMCTL32_MAJOR < 6 || (bits & OS.TVS_FULLROWSELECT) != 0) { |
| OS.SetRect (rect, nmcd.left, nmcd.top, nmcd.right, nmcd.bottom); |
| } else { |
| rect.left = item.handle; |
| if (OS.SendMessage (handle, OS.TVM_GETITEMRECT, 1, rect) != 0) { |
| int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0); |
| if (hItem == item.handle) { |
| OS.SetRect (rect, rect.right, nmcd.top, nmcd.right, nmcd.bottom); |
| } else { |
| TVITEM tvItem = new TVITEM (); |
| tvItem.mask = OS.TVIF_STATE; |
| tvItem.hItem = item.handle; |
| OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); |
| if ((tvItem.state & OS.TVIS_SELECTED) != 0) { |
| OS.SetRect (rect, rect.right, nmcd.top, nmcd.right, nmcd.bottom); |
| } else { |
| OS.SetRect (rect, rect.left, nmcd.top, nmcd.right, nmcd.bottom); |
| } |
| } |
| } else { |
| rect.left = 0; |
| } |
| } |
| OS.DrawEdge (hDC, rect, OS.BDR_SUNKENINNER, OS.BF_BOTTOM); |
| } |
| return new LRESULT (OS.CDRF_DODEFAULT); |
| } |
| } |
| break; |
| } |
| case OS.NM_DBLCLK: { |
| if (hooks (SWT.DefaultSelection)) return LRESULT.ONE; |
| break; |
| } |
| case OS.TVN_SELCHANGEDA: |
| case OS.TVN_SELCHANGEDW: { |
| if ((style & SWT.MULTI) != 0) { |
| if (lockSelection) { |
| /* Restore the old selection state of both items */ |
| if (oldSelected) { |
| TVITEM tvItem = new TVITEM (); |
| int offset = NMHDR.sizeof + 4; |
| OS.MoveMemory (tvItem, lParam + offset, TVITEM.sizeof); |
| tvItem.mask = OS.TVIF_STATE; |
| tvItem.stateMask = OS.TVIS_SELECTED; |
| tvItem.state = OS.TVIS_SELECTED; |
| OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); |
| } |
| if (!newSelected && ignoreSelect) { |
| TVITEM tvItem = new TVITEM (); |
| int offset = NMHDR.sizeof + 4 + TVITEM.sizeof; |
| OS.MoveMemory (tvItem, lParam + offset, TVITEM.sizeof); |
| tvItem.mask = OS.TVIF_STATE; |
| tvItem.stateMask = OS.TVIS_SELECTED; |
| tvItem.state = 0; |
| OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); |
| } |
| } |
| } |
| if (!ignoreSelect) { |
| TVITEM tvItem = new TVITEM (); |
| int offset = NMHDR.sizeof + 4 + TVITEM.sizeof; |
| OS.MoveMemory (tvItem, lParam + offset, TVITEM.sizeof); |
| hAnchor = tvItem.hItem; |
| Event event = new Event (); |
| event.item = _getItem (tvItem.hItem, tvItem.lParam); |
| postEvent (SWT.Selection, event); |
| } |
| updateScrollBar (); |
| break; |
| } |
| case OS.TVN_SELCHANGINGA: |
| case OS.TVN_SELCHANGINGW: { |
| if ((style & SWT.MULTI) != 0) { |
| if (lockSelection) { |
| /* Save the old selection state for both items */ |
| TVITEM tvItem = new TVITEM (); |
| int offset1 = NMHDR.sizeof + 4; |
| OS.MoveMemory (tvItem, lParam + offset1, TVITEM.sizeof); |
| oldSelected = (tvItem.state & OS.TVIS_SELECTED) != 0; |
| int offset2 = NMHDR.sizeof + 4 + TVITEM.sizeof; |
| OS.MoveMemory (tvItem, lParam + offset2, TVITEM.sizeof); |
| newSelected = (tvItem.state & OS.TVIS_SELECTED) != 0; |
| } |
| } |
| if (!ignoreSelect && !ignoreDeselect) { |
| hAnchor = 0; |
| if ((style & SWT.MULTI) != 0) deselectAll (); |
| } |
| break; |
| } |
| case OS.TVN_ITEMEXPANDEDA: |
| case OS.TVN_ITEMEXPANDEDW: { |
| if (backgroundImage != null && drawCount == 0) { |
| OS.DefWindowProc (handle, OS.WM_SETREDRAW, 1, 0); |
| OS.InvalidateRect (handle, null, true); |
| } |
| /* |
| * Bug in Windows. When TVM_SETINSERTMARK is used to set |
| * an insert mark for a tree and an item is expanded or |
| * collapsed near the insert mark, the tree does not redraw |
| * the insert mark properly. The fix is to hide and show |
| * the insert mark whenever an item is expanded or collapsed. |
| */ |
| if (hInsert != 0) { |
| OS.SendMessage (handle, OS.TVM_SETINSERTMARK, insertAfter ? 1 : 0, hInsert); |
| } |
| updateScrollBar (); |
| break; |
| } |
| case OS.TVN_ITEMEXPANDINGA: |
| case OS.TVN_ITEMEXPANDINGW: { |
| if (backgroundImage != null && drawCount == 0) { |
| OS.DefWindowProc (handle, OS.WM_SETREDRAW, 0, 0); |
| } |
| /* |
| * Bug in Windows. When TVM_SETINSERTMARK is used to set |
| * an insert mark for a tree and an item is expanded or |
| * collapsed near the insert mark, the tree does not redraw |
| * the insert mark properly. The fix is to hide and show |
| * the insert mark whenever an item is expanded or collapsed. |
| */ |
| if (hInsert != 0) { |
| OS.SendMessage (handle, OS.TVM_SETINSERTMARK, 0, 0); |
| } |
| if (!ignoreExpand) { |
| TVITEM tvItem = new TVITEM (); |
| int offset = NMHDR.sizeof + 4 + TVITEM.sizeof; |
| OS.MoveMemory (tvItem, lParam + offset, TVITEM.sizeof); |
| /* |
| * Feature in Windows. In some cases, TVM_ITEMEXPANDING |
| * is sent from within TVM_DELETEITEM for the tree item |
| * being destroyed. By the time the message is sent, |
| * the item has already been removed from the list of |
| * items. The fix is to check for null. |
| */ |
| if (items == null) break; |
| TreeItem item = _getItem (tvItem.hItem, tvItem.lParam); |
| if (item == null) break; |
| Event event = new Event (); |
| event.item = item; |
| int [] action = new int [1]; |
| OS.MoveMemory (action, lParam + NMHDR.sizeof, 4); |
| switch (action [0]) { |
| case OS.TVE_EXPAND: |
| /* |
| * Bug in Windows. When the numeric keypad asterisk |
| * key is used to expand every item in the tree, Windows |
| * sends TVN_ITEMEXPANDING to items in the tree that |
| * have already been expanded. The fix is to detect |
| * that the item is already expanded and ignore the |
| * notification. |
| */ |
| if ((tvItem.state & OS.TVIS_EXPANDED) == 0) { |
| sendEvent (SWT.Expand, event); |
| if (isDisposed ()) return LRESULT.ZERO; |
| } |
| break; |
| case OS.TVE_COLLAPSE: |
| sendEvent (SWT.Collapse, event); |
| if (isDisposed ()) return LRESULT.ZERO; |
| break; |
| } |
| } |
| break; |
| } |
| case OS.TVN_BEGINDRAGA: |
| case OS.TVN_BEGINDRAGW: |
| case OS.TVN_BEGINRDRAGA: |
| case OS.TVN_BEGINRDRAGW: { |
| TVITEM tvItem = new TVITEM (); |
| int offset = NMHDR.sizeof + 4 + TVITEM.sizeof; |
| OS.MoveMemory (tvItem, lParam + offset, TVITEM.sizeof); |
| if (tvItem.hItem != 0 && (tvItem.state & OS.TVIS_SELECTED) == 0) { |
| ignoreSelect = ignoreDeselect = true; |
| OS.SendMessage (handle, OS.TVM_SELECTITEM, OS.TVGN_CARET, tvItem.hItem); |
| ignoreSelect = ignoreDeselect = false; |
| } |
| dragStarted = true; |
| break; |
| } |
| case OS.NM_RECOGNIZEGESTURE: { |
| /* |
| * Feature in Pocket PC. The tree and table controls detect the tap |
| * and hold gesture by default. They send a GN_CONTEXTMENU message to show |
| * the popup menu. This default behaviour is unwanted on Pocket PC 2002 |
| * when no menu has been set, as it still draws a red circle. The fix |
| * is to disable this default behaviour when no menu is set by returning |
| * TRUE when receiving the Pocket PC 2002 specific NM_RECOGNIZEGESTURE |
| * message. |
| */ |
| if (OS.IsPPC) { |
| boolean hasMenu = menu != null && !menu.isDisposed (); |
| if (!hasMenu && !hooks (SWT.MenuDetect)) return LRESULT.ONE; |
| } |
| break; |
| } |
| case OS.GN_CONTEXTMENU: { |
| if (OS.IsPPC) { |
| boolean hasMenu = menu != null && !menu.isDisposed (); |
| if (hasMenu || hooks (SWT.MenuDetect)) { |
| NMRGINFO nmrg = new NMRGINFO (); |
| OS.MoveMemory (nmrg, lParam, NMRGINFO.sizeof); |
| showMenu (nmrg.x, nmrg.y); |
| gestureCompleted = true; |
| return LRESULT.ONE; |
| } |
| } |
| break; |
| } |
| } |
| return super.wmNotifyChild (wParam, lParam); |
| } |
| |
| } |