| /******************************************************************************* |
| * Copyright (c) 2000, 2016 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.*; |
| import org.eclipse.swt.events.*; |
| import org.eclipse.swt.graphics.*; |
| import org.eclipse.swt.internal.*; |
| import org.eclipse.swt.internal.win32.*; |
| |
| /** |
| * Instances of this class support the layout of selectable |
| * expand bar items. |
| * <p> |
| * The item children that may be added to instances of this class |
| * must be of type <code>ExpandItem</code>. |
| * </p><p> |
| * <dl> |
| * <dt><b>Styles:</b></dt> |
| * <dd>V_SCROLL</dd> |
| * <dt><b>Events:</b></dt> |
| * <dd>Expand, Collapse</dd> |
| * </dl> |
| * </p><p> |
| * IMPORTANT: This class is <em>not</em> intended to be subclassed. |
| * </p> |
| * |
| * @see ExpandItem |
| * @see ExpandEvent |
| * @see ExpandListener |
| * @see ExpandAdapter |
| * @see <a href="http://www.eclipse.org/swt/snippets/#expandbar">ExpandBar snippets</a> |
| * @see <a href="http://www.eclipse.org/swt/examples.php">SWT Example: ControlExample</a> |
| * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> |
| * |
| * @since 3.2 |
| * @noextend This class is not intended to be subclassed by clients. |
| */ |
| public class ExpandBar extends Composite { |
| ExpandItem[] items; |
| int itemCount; |
| ExpandItem focusItem; |
| int spacing = 4; |
| int yCurrentScroll; |
| long /*int*/ hFont; |
| |
| |
| /** |
| * 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#V_SCROLL |
| * @see Widget#checkSubclass |
| * @see Widget#getStyle |
| */ |
| public ExpandBar (Composite parent, int style) { |
| super (parent, checkStyle (style)); |
| } |
| |
| /** |
| * 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>ExpandListener</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 ExpandListener |
| * @see #removeExpandListener |
| */ |
| public void addExpandListener (ExpandListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| TypedListener typedListener = new TypedListener (listener); |
| addListener (SWT.Expand, typedListener); |
| addListener (SWT.Collapse, typedListener); |
| } |
| |
| @Override |
| long /*int*/ callWindowProc (long /*int*/ hwnd, int msg, long /*int*/ wParam, long /*int*/ lParam) { |
| if (handle == 0) return 0; |
| return OS.DefWindowProc (hwnd, msg, wParam, lParam); |
| } |
| |
| @Override |
| protected void checkSubclass () { |
| if (!isValidSubclass ()) error (SWT.ERROR_INVALID_SUBCLASS); |
| } |
| |
| static int checkStyle (int style) { |
| style &= ~SWT.H_SCROLL; |
| return style | SWT.NO_BACKGROUND; |
| } |
| |
| @Override Point computeSizeInPixels (int wHint, int hHint, boolean changed) { |
| int height = 0, width = 0; |
| if (wHint == SWT.DEFAULT || hHint == SWT.DEFAULT) { |
| if (itemCount > 0) { |
| long /*int*/ hDC = OS.GetDC (handle); |
| long /*int*/ hTheme = 0; |
| if (isAppThemed ()) { |
| hTheme = display.hExplorerBarTheme (); |
| } |
| long /*int*/ hCurrentFont = 0, oldFont = 0; |
| if (hTheme == 0) { |
| if (hFont != 0) { |
| hCurrentFont = hFont; |
| } else { |
| if (!OS.IsWinCE) { |
| NONCLIENTMETRICS info = OS.IsUnicode ? (NONCLIENTMETRICS) new NONCLIENTMETRICSW () : new NONCLIENTMETRICSA (); |
| info.cbSize = NONCLIENTMETRICS.sizeof; |
| if (OS.SystemParametersInfo (OS.SPI_GETNONCLIENTMETRICS, 0, info, 0)) { |
| LOGFONT logFont = OS.IsUnicode ? (LOGFONT) ((NONCLIENTMETRICSW)info).lfCaptionFont : ((NONCLIENTMETRICSA)info).lfCaptionFont; |
| hCurrentFont = OS.CreateFontIndirect (logFont); |
| } |
| } |
| } |
| if (hCurrentFont != 0) { |
| oldFont = OS.SelectObject (hDC, hCurrentFont); |
| } |
| } |
| height += spacing; |
| for (int i = 0; i < itemCount; i++) { |
| ExpandItem item = items [i]; |
| height += item.getHeaderHeightInPixels (); |
| if (item.expanded) height += item.height; |
| height += spacing; |
| width = Math.max (width, item.getPreferredWidth (hTheme, hDC)); |
| } |
| if (hCurrentFont != 0) { |
| OS.SelectObject (hDC, oldFont); |
| if (hCurrentFont != hFont) OS.DeleteObject (hCurrentFont); |
| } |
| OS.ReleaseDC (handle, hDC); |
| } |
| } |
| if (width == 0) width = DEFAULT_WIDTH; |
| if (height == 0) height = DEFAULT_HEIGHT; |
| if (wHint != SWT.DEFAULT) width = wHint; |
| if (hHint != SWT.DEFAULT) height = hHint; |
| Rectangle trim = computeTrimInPixels (0, 0, width, height); |
| return new Point (trim.width, trim.height); |
| } |
| |
| @Override |
| void createHandle () { |
| super.createHandle (); |
| state &= ~CANVAS; |
| state |= TRACK_MOUSE; |
| } |
| |
| void createItem (ExpandItem item, int style, int index) { |
| if (!(0 <= index && index <= itemCount)) error (SWT.ERROR_INVALID_RANGE); |
| if (itemCount == items.length) { |
| ExpandItem [] newItems = new ExpandItem [itemCount + 4]; |
| System.arraycopy (items, 0, newItems, 0, items.length); |
| items = newItems; |
| } |
| System.arraycopy (items, index, items, index + 1, itemCount - index); |
| items [index] = item; |
| itemCount++; |
| if (focusItem == null) focusItem = item; |
| |
| RECT rect = new RECT (); |
| OS.GetWindowRect (handle, rect); |
| item.width = Math.max (0, rect.right - rect.left - spacing * 2); |
| layoutItems (index, true); |
| } |
| |
| @Override |
| void createWidget () { |
| super.createWidget (); |
| items = new ExpandItem [4]; |
| if (!isAppThemed ()) { |
| backgroundMode = SWT.INHERIT_DEFAULT; |
| } |
| } |
| |
| @Override |
| int defaultBackground() { |
| if (!isAppThemed ()) { |
| return OS.GetSysColor (OS.COLOR_WINDOW); |
| } |
| return super.defaultBackground(); |
| } |
| |
| void destroyItem (ExpandItem item) { |
| int index = 0; |
| while (index < itemCount) { |
| if (items [index] == item) break; |
| index++; |
| } |
| if (index == itemCount) return; |
| if (item == focusItem) { |
| int focusIndex = index > 0 ? index - 1 : 1; |
| if (focusIndex < itemCount) { |
| focusItem = items [focusIndex]; |
| focusItem.redraw (true); |
| } else { |
| focusItem = null; |
| } |
| } |
| System.arraycopy (items, index + 1, items, index, --itemCount - index); |
| items [itemCount] = null; |
| item.redraw (true); |
| layoutItems (index, true); |
| } |
| |
| @Override |
| void drawThemeBackground (long /*int*/ hDC, long /*int*/ hwnd, RECT rect) { |
| RECT rect2 = new RECT (); |
| OS.GetClientRect (handle, rect2); |
| OS.MapWindowPoints (handle, hwnd, rect2, 2); |
| OS.DrawThemeBackground (display.hExplorerBarTheme (), hDC, OS.EBP_NORMALGROUPBACKGROUND, 0, rect2, null); |
| } |
| |
| void drawWidget (GC gc, RECT clipRect) { |
| long /*int*/ hTheme = 0; |
| if (isAppThemed ()) { |
| hTheme = display.hExplorerBarTheme (); |
| } |
| if (hTheme != 0) { |
| RECT rect = new RECT (); |
| OS.GetClientRect (handle, rect); |
| OS.DrawThemeBackground (hTheme, gc.handle, OS.EBP_HEADERBACKGROUND, 0, rect, clipRect); |
| } else { |
| drawBackground (gc.handle); |
| } |
| boolean drawFocus = false; |
| if (handle == OS.GetFocus ()) { |
| int uiState = (int)/*64*/OS.SendMessage (handle, OS.WM_QUERYUISTATE, 0, 0); |
| drawFocus = (uiState & OS.UISF_HIDEFOCUS) == 0; |
| } |
| long /*int*/ hCurrentFont = 0, oldFont = 0; |
| if (hTheme == 0) { |
| if (hFont != 0) { |
| hCurrentFont = hFont; |
| } else { |
| if (!OS.IsWinCE) { |
| NONCLIENTMETRICS info = OS.IsUnicode ? (NONCLIENTMETRICS) new NONCLIENTMETRICSW () : new NONCLIENTMETRICSA (); |
| info.cbSize = NONCLIENTMETRICS.sizeof; |
| if (OS.SystemParametersInfo (OS.SPI_GETNONCLIENTMETRICS, 0, info, 0)) { |
| LOGFONT logFont = OS.IsUnicode ? (LOGFONT) ((NONCLIENTMETRICSW)info).lfCaptionFont : ((NONCLIENTMETRICSA)info).lfCaptionFont; |
| hCurrentFont = OS.CreateFontIndirect (logFont); |
| } |
| } |
| } |
| if (hCurrentFont != 0) { |
| oldFont = OS.SelectObject (gc.handle, hCurrentFont); |
| } |
| if (foreground != -1) { |
| OS.SetTextColor (gc.handle, foreground); |
| } |
| } |
| for (int i = 0; i < itemCount; i++) { |
| ExpandItem item = items[i]; |
| item.drawItem (gc, hTheme, clipRect, item == focusItem && drawFocus); |
| } |
| if (hCurrentFont != 0) { |
| OS.SelectObject (gc.handle, oldFont); |
| if (hCurrentFont != hFont) OS.DeleteObject (hCurrentFont); |
| } |
| } |
| |
| @Override |
| Control findBackgroundControl () { |
| Control control = super.findBackgroundControl (); |
| if (!isAppThemed ()) { |
| if (control == null) control = this; |
| } |
| return control; |
| } |
| |
| @Override |
| Control findThemeControl () { |
| return isAppThemed () ? this : super.findThemeControl (); |
| } |
| |
| int getBandHeight () { |
| long /*int*/ hDC = OS.GetDC (handle); |
| long /*int*/ oldHFont = OS.SelectObject (hDC, hFont == 0 ? defaultFont () : hFont); |
| TEXTMETRIC lptm = OS.IsUnicode ? (TEXTMETRIC)new TEXTMETRICW() : new TEXTMETRICA(); |
| OS.GetTextMetrics (hDC, lptm); |
| OS.SelectObject (hDC, oldHFont); |
| OS.ReleaseDC (handle, hDC); |
| return Math.max (ExpandItem.CHEVRON_SIZE, lptm.tmHeight + 4); |
| } |
| |
| /** |
| * 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> |
| */ |
| public ExpandItem getItem (int index) { |
| checkWidget (); |
| if (!(0 <= index && index < itemCount)) error (SWT.ERROR_INVALID_RANGE); |
| return items [index]; |
| } |
| |
| /** |
| * Returns the number of items contained in the receiver. |
| * |
| * @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 (); |
| return itemCount; |
| } |
| |
| /** |
| * Returns an array of <code>ExpandItem</code>s which are the items |
| * in the receiver. |
| * <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> |
| */ |
| public ExpandItem [] getItems () { |
| checkWidget (); |
| ExpandItem [] result = new ExpandItem [itemCount]; |
| System.arraycopy (items, 0, result, 0, itemCount); |
| return result; |
| } |
| |
| /** |
| * Returns the receiver's spacing. |
| * |
| * @return the spacing |
| * |
| * @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 getSpacing () { |
| checkWidget (); |
| return DPIUtil.autoScaleDown(getSpacingInPixels ()); |
| } |
| |
| int getSpacingInPixels () { |
| return spacing; |
| } |
| |
| /** |
| * 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 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> |
| */ |
| public int indexOf (ExpandItem item) { |
| checkWidget (); |
| if (item == null) error (SWT.ERROR_NULL_ARGUMENT); |
| for (int i = 0; i < itemCount; i++) { |
| if (items [i] == item) return i; |
| } |
| return -1; |
| } |
| |
| boolean isAppThemed () { |
| if (background != -1) return false; |
| if (foreground != -1) return false; |
| if (hFont != 0) return false; |
| return OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed (); |
| } |
| |
| void layoutItems (int index, boolean setScrollbar) { |
| if (index < itemCount) { |
| int y = spacing - yCurrentScroll; |
| for (int i = 0; i < index; i++) { |
| ExpandItem item = items [i]; |
| if (item.expanded) y += item.height; |
| y += item.getHeaderHeightInPixels () + spacing; |
| } |
| for (int i = index; i < itemCount; i++) { |
| ExpandItem item = items [i]; |
| item.setBoundsInPixels (spacing, y, 0, 0, true, false); |
| if (item.expanded) y += item.height; |
| y += item.getHeaderHeightInPixels () + spacing; |
| } |
| } |
| if (setScrollbar) setScrollbar (); |
| } |
| |
| @Override |
| void releaseChildren (boolean destroy) { |
| if (items != null) { |
| for (int i=0; i<items.length; i++) { |
| ExpandItem item = items [i]; |
| if (item != null && !item.isDisposed ()) { |
| item.release (false); |
| } |
| } |
| items = null; |
| } |
| focusItem = null; |
| super.releaseChildren (destroy); |
| } |
| |
| /** |
| * 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 ExpandListener |
| * @see #addExpandListener |
| */ |
| public void removeExpandListener (ExpandListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (eventTable == null) return; |
| eventTable.unhook (SWT.Expand, listener); |
| eventTable.unhook (SWT.Collapse, listener); |
| } |
| |
| @Override |
| void reskinChildren (int flags) { |
| if (items != null) { |
| for (int i=0; i<items.length; i++) { |
| ExpandItem item = items [i]; |
| if (item != null ) item.reskin (flags); |
| } |
| } |
| super.reskinChildren (flags); |
| } |
| |
| @Override |
| void setBackgroundPixel (int pixel) { |
| super.setBackgroundPixel (pixel); |
| if (!OS.IsWinCE) { |
| int flags = OS.RDW_ERASE | OS.RDW_FRAME | OS.RDW_INVALIDATE | OS.RDW_ALLCHILDREN; |
| OS.RedrawWindow (handle, null, 0, flags); |
| } |
| } |
| |
| @Override |
| public void setFont (Font font) { |
| super.setFont (font); |
| hFont = font != null ? font.handle : 0; |
| layoutItems (0, true); |
| } |
| |
| @Override |
| void setForegroundPixel (int pixel) { |
| super.setForegroundPixel (pixel); |
| if (!OS.IsWinCE) { |
| int flags = OS.RDW_ERASE | OS.RDW_FRAME | OS.RDW_INVALIDATE | OS.RDW_ALLCHILDREN; |
| OS.RedrawWindow (handle, null, 0, flags); |
| } |
| } |
| |
| void setScrollbar () { |
| if (itemCount == 0) return; |
| if ((style & SWT.V_SCROLL) == 0) return; |
| RECT rect = new RECT(); |
| OS.GetClientRect (handle, rect); |
| int height = rect.bottom - rect.top; |
| ExpandItem item = items [itemCount - 1]; |
| int maxHeight = item.y + getBandHeight () + spacing; |
| if (item.expanded) maxHeight += item.height; |
| |
| //claim bottom free space |
| if (yCurrentScroll > 0 && height > maxHeight) { |
| yCurrentScroll = Math.max (0, yCurrentScroll + maxHeight - height); |
| layoutItems (0, false); |
| } |
| maxHeight += yCurrentScroll; |
| |
| SCROLLINFO info = new SCROLLINFO (); |
| info.cbSize = SCROLLINFO.sizeof; |
| info.fMask = OS.SIF_RANGE | OS.SIF_PAGE | OS.SIF_POS; |
| info.nMin = 0; |
| info.nMax = maxHeight; |
| info.nPage = height; |
| info.nPos = Math.min (yCurrentScroll, info.nMax); |
| if (info.nPage != 0) info.nPage++; |
| OS.SetScrollInfo (handle, OS.SB_VERT, info, true); |
| } |
| |
| /** |
| * Sets the receiver's spacing. Spacing specifies the number of pixels allocated around |
| * each item. |
| * |
| * @param spacing the spacing around each 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 void setSpacing (int spacing) { |
| checkWidget (); |
| setSpacingInPixels(DPIUtil.autoScaleUp(spacing)); |
| } |
| |
| void setSpacingInPixels (int spacing) { |
| if (spacing < 0) return; |
| if (spacing == this.spacing) return; |
| this.spacing = spacing; |
| RECT rect = new RECT (); |
| OS.GetClientRect (handle, rect); |
| int width = Math.max (0, (rect.right - rect.left) - spacing * 2); |
| for (int i = 0; i < itemCount; i++) { |
| ExpandItem item = items[i]; |
| if (item.width != width) item.setBoundsInPixels (0, 0, width, item.height, false, true); |
| } |
| layoutItems (0, true); |
| OS.InvalidateRect (handle, null, true); |
| } |
| |
| @Override |
| boolean updateTextDirection(int textDirection) { |
| if (super.updateTextDirection(textDirection)) { |
| for (int i = 0, n = items.length; i < n; i++) { |
| if (items[i] != null) { |
| items[i].updateTextDirection(textDirection == AUTO_TEXT_DIRECTION ? AUTO_TEXT_DIRECTION : style & SWT.FLIP_TEXT_DIRECTION); |
| } |
| } |
| return true; |
| } |
| return false; |
| } |
| |
| void showItem (ExpandItem item) { |
| Control control = item.control; |
| if (control != null && !control.isDisposed ()) { |
| control.setVisible (item.expanded); |
| } |
| item.redraw (true); |
| int index = indexOf (item); |
| layoutItems (index + 1, true); |
| } |
| |
| void showFocus (boolean up) { |
| RECT rect = new RECT(); |
| OS.GetClientRect (handle, rect); |
| int height = rect.bottom - rect.top; |
| int updateY = 0; |
| if (up) { |
| if (focusItem.y < 0) { |
| updateY = Math.min (yCurrentScroll, -focusItem.y); |
| } |
| } else { |
| int itemHeight = focusItem.y + getBandHeight (); |
| if (focusItem.expanded) { |
| if (height >= getBandHeight () + focusItem.height) { |
| itemHeight += focusItem.height; |
| } |
| } |
| if (itemHeight > height) { |
| updateY = height - itemHeight; |
| } |
| } |
| if (updateY != 0) { |
| yCurrentScroll = Math.max (0, yCurrentScroll - updateY); |
| if ((style & SWT.V_SCROLL) != 0) { |
| SCROLLINFO info = new SCROLLINFO (); |
| info.cbSize = SCROLLINFO.sizeof; |
| info.fMask = OS.SIF_POS; |
| info.nPos = yCurrentScroll; |
| OS.SetScrollInfo (handle, OS.SB_VERT, info, true); |
| } |
| OS.ScrollWindowEx (handle, 0, updateY, null, null, 0, null, OS.SW_SCROLLCHILDREN | OS.SW_INVALIDATE); |
| for (int i = 0; i < itemCount; i++) { |
| items [i].y += updateY; |
| } |
| } |
| } |
| |
| @Override |
| TCHAR windowClass () { |
| return display.windowClass; |
| } |
| |
| @Override |
| long /*int*/ windowProc () { |
| return display.windowProc; |
| } |
| |
| @Override |
| LRESULT WM_KEYDOWN (long /*int*/ wParam, long /*int*/ lParam) { |
| LRESULT result = super.WM_KEYDOWN (wParam, lParam); |
| if (result != null) return result; |
| if (focusItem == null) return result; |
| switch ((int)/*64*/wParam) { |
| case OS.VK_SPACE: |
| case OS.VK_RETURN: |
| Event event = new Event (); |
| event.item = focusItem; |
| sendEvent (focusItem.expanded ? SWT.Collapse : SWT.Expand, event); |
| focusItem.expanded = !focusItem.expanded; |
| showItem (focusItem); |
| return LRESULT.ZERO; |
| case OS.VK_UP: { |
| int focusIndex = indexOf (focusItem); |
| if (focusIndex > 0) { |
| focusItem.redraw (true); |
| focusItem = items [focusIndex - 1]; |
| focusItem.redraw (true); |
| showFocus (true); |
| return LRESULT.ZERO; |
| } |
| break; |
| } |
| case OS.VK_DOWN: { |
| int focusIndex = indexOf (focusItem); |
| if (focusIndex < itemCount - 1) { |
| focusItem.redraw (true); |
| focusItem = items [focusIndex + 1]; |
| focusItem.redraw (true); |
| showFocus (false); |
| return LRESULT.ZERO; |
| } |
| break; |
| } |
| } |
| return result; |
| } |
| |
| @Override |
| LRESULT WM_KILLFOCUS (long /*int*/ wParam, long /*int*/ lParam) { |
| LRESULT result = super.WM_KILLFOCUS (wParam, lParam); |
| if (focusItem != null) focusItem.redraw (true); |
| return result; |
| } |
| |
| @Override |
| LRESULT WM_LBUTTONDOWN (long /*int*/ wParam, long /*int*/ lParam) { |
| LRESULT result = super.WM_LBUTTONDOWN (wParam, lParam); |
| if (result == LRESULT.ZERO) return result; |
| int x = OS.GET_X_LPARAM (lParam); |
| int y = OS.GET_Y_LPARAM (lParam); |
| for (int i = 0; i < itemCount; i++) { |
| ExpandItem item = items[i]; |
| boolean hover = item.isHover (x, y); |
| if (hover && focusItem != item) { |
| focusItem.redraw (true); |
| focusItem = item; |
| focusItem.redraw (true); |
| forceFocus (); |
| break; |
| } |
| } |
| return result; |
| } |
| |
| @Override |
| LRESULT WM_LBUTTONUP (long /*int*/ wParam, long /*int*/ lParam) { |
| LRESULT result = super.WM_LBUTTONUP (wParam, lParam); |
| if (result == LRESULT.ZERO) return result; |
| if (focusItem == null) return result; |
| int x = OS.GET_X_LPARAM (lParam); |
| int y = OS.GET_Y_LPARAM (lParam); |
| boolean hover = focusItem.isHover (x, y); |
| if (hover) { |
| Event event = new Event (); |
| event.item = focusItem; |
| sendEvent (focusItem.expanded ? SWT.Collapse : SWT.Expand, event); |
| focusItem.expanded = !focusItem.expanded; |
| showItem (focusItem); |
| } |
| return result; |
| } |
| |
| @Override |
| LRESULT WM_MOUSELEAVE (long /*int*/ wParam, long /*int*/ lParam) { |
| LRESULT result = super.WM_MOUSELEAVE (wParam, lParam); |
| if (result != null) return result; |
| for (int i = 0; i < itemCount; i++) { |
| ExpandItem item = items [i]; |
| if (item.hover) { |
| item.hover = false; |
| item.redraw (false); |
| break; |
| } |
| } |
| return result; |
| } |
| |
| @Override |
| LRESULT WM_MOUSEMOVE (long /*int*/ wParam, long /*int*/ lParam) { |
| LRESULT result = super.WM_MOUSEMOVE (wParam, lParam); |
| if (result == LRESULT.ZERO) return result; |
| int x = OS.GET_X_LPARAM (lParam); |
| int y = OS.GET_Y_LPARAM (lParam); |
| for (int i = 0; i < itemCount; i++) { |
| ExpandItem item = items [i]; |
| boolean hover = item.isHover (x, y); |
| if (item.hover != hover) { |
| item.hover = hover; |
| item.redraw (false); |
| } |
| } |
| return result; |
| } |
| |
| @Override |
| LRESULT WM_MOUSEWHEEL (long /*int*/ wParam, long /*int*/ lParam) { |
| return wmScrollWheel (true, wParam, lParam); |
| } |
| |
| @Override |
| LRESULT WM_PAINT (long /*int*/ wParam, long /*int*/ lParam) { |
| if ((state & DISPOSE_SENT) != 0) return LRESULT.ZERO; |
| |
| PAINTSTRUCT ps = new PAINTSTRUCT (); |
| GCData data = new GCData (); |
| data.ps = ps; |
| data.hwnd = handle; |
| GC gc = new_GC (data); |
| if (gc != null) { |
| int width = ps.right - ps.left; |
| int height = ps.bottom - ps.top; |
| if (width != 0 && height != 0) { |
| RECT rect = new RECT (); |
| OS.SetRect (rect, ps.left, ps.top, ps.right, ps.bottom); |
| drawWidget (gc, rect); |
| if (hooks (SWT.Paint) || filters (SWT.Paint)) { |
| Event event = new Event (); |
| event.gc = gc; |
| event.setBoundsInPixels(new Rectangle(rect.left, rect.top, width, height)); |
| sendEvent (SWT.Paint, event); |
| event.gc = null; |
| } |
| } |
| gc.dispose (); |
| } |
| return LRESULT.ZERO; |
| } |
| |
| @Override |
| LRESULT WM_PRINTCLIENT (long /*int*/ wParam, long /*int*/ lParam) { |
| LRESULT result = super.WM_PRINTCLIENT (wParam, lParam); |
| RECT rect = new RECT (); |
| OS.GetClientRect (handle, rect); |
| GCData data = new GCData (); |
| data.device = display; |
| data.foreground = getForegroundPixel (); |
| GC gc = GC.win32_new (wParam, data); |
| drawWidget (gc, rect); |
| gc.dispose (); |
| return result; |
| } |
| |
| @Override |
| LRESULT WM_SETCURSOR (long /*int*/ wParam, long /*int*/ lParam) { |
| LRESULT result = super.WM_SETCURSOR (wParam, lParam); |
| if (result != null) return result; |
| int hitTest = (short) OS.LOWORD (lParam); |
| if (hitTest == OS.HTCLIENT) { |
| for (int i = 0; i < itemCount; i++) { |
| ExpandItem item = items [i]; |
| if (item.hover) { |
| long /*int*/ hCursor = OS.LoadCursor (0, OS.IDC_HAND); |
| OS.SetCursor (hCursor); |
| return LRESULT.ONE; |
| } |
| } |
| } |
| return result; |
| } |
| |
| @Override |
| LRESULT WM_SETFOCUS (long /*int*/ wParam, long /*int*/ lParam) { |
| LRESULT result = super.WM_SETFOCUS (wParam, lParam); |
| if (focusItem != null) focusItem.redraw (true); |
| return result; |
| } |
| |
| @Override |
| LRESULT WM_SIZE (long /*int*/ wParam, long /*int*/ lParam) { |
| LRESULT result = super.WM_SIZE (wParam, lParam); |
| RECT rect = new RECT (); |
| OS.GetClientRect (handle, rect); |
| int width = Math.max (0, (rect.right - rect.left) - spacing * 2); |
| for (int i = 0; i < itemCount; i++) { |
| ExpandItem item = items[i]; |
| if (item.width != width) item.setBoundsInPixels (0, 0, width, item.height, false, true); |
| } |
| setScrollbar (); |
| OS.InvalidateRect (handle, null, true); |
| return result; |
| } |
| |
| @Override |
| LRESULT wmScroll (ScrollBar bar, boolean update, long /*int*/ hwnd, int msg, long /*int*/ wParam, long /*int*/ lParam) { |
| LRESULT result = super.wmScroll (bar, true, hwnd, msg, wParam, lParam); |
| SCROLLINFO info = new SCROLLINFO (); |
| info.cbSize = SCROLLINFO.sizeof; |
| info.fMask = OS.SIF_POS; |
| OS.GetScrollInfo (handle, OS.SB_VERT, info); |
| int updateY = yCurrentScroll - info.nPos; |
| OS.ScrollWindowEx (handle, 0, updateY, null, null, 0, null, OS.SW_SCROLLCHILDREN | OS.SW_INVALIDATE); |
| yCurrentScroll = info.nPos; |
| if (updateY != 0) { |
| for (int i = 0; i < itemCount; i++) { |
| items [i].y += updateY; |
| } |
| } |
| return result; |
| } |
| } |