| /******************************************************************************* |
| * Copyright (c) 2000, 2015 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.graphics.*; |
| import org.eclipse.swt.internal.*; |
| import org.eclipse.swt.internal.win32.*; |
| |
| /** |
| * Instances of this class represent a selectable user interface object |
| * that represents a hierarchy of tree items in a tree widget. |
| * |
| * <dl> |
| * <dt><b>Styles:</b></dt> |
| * <dd>(none)</dd> |
| * <dt><b>Events:</b></dt> |
| * <dd>(none)</dd> |
| * </dl> |
| * <p> |
| * IMPORTANT: This class is <em>not</em> intended to be subclassed. |
| * </p> |
| * |
| * @see <a href="http://www.eclipse.org/swt/snippets/#tree">Tree, TreeItem, TreeColumn snippets</a> |
| * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> |
| * @noextend This class is not intended to be subclassed by clients. |
| */ |
| public class TreeItem extends Item { |
| /** |
| * the handle to the OS resource |
| * (Warning: This field is platform dependent) |
| * <p> |
| * <b>IMPORTANT:</b> This field is <em>not</em> part of the SWT |
| * public API. It is marked public only so that it can be shared |
| * within the packages provided by SWT. It is not available on all |
| * platforms and should never be accessed from application code. |
| * </p> |
| * |
| * @noreference This field is not intended to be referenced by clients. |
| */ |
| public long /*int*/ handle; |
| Tree parent; |
| String [] strings; |
| Image [] images; |
| Font font; |
| Font [] cellFont; |
| boolean cached; |
| int background = -1, foreground = -1; |
| int [] cellBackground, cellForeground; |
| |
| /** |
| * Constructs a new instance of this class given its parent |
| * (which must be a <code>Tree</code> or a <code>TreeItem</code>) |
| * and a style value describing its behavior and appearance. |
| * The item is added to the end of the items maintained by its parent. |
| * <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 tree 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 |
| * @see Widget#checkSubclass |
| * @see Widget#getStyle |
| */ |
| public TreeItem (Tree parent, int style) { |
| this (parent, style, OS.TVGN_ROOT, OS.TVI_LAST, 0); |
| } |
| |
| /** |
| * Constructs a new instance of this class given its parent |
| * (which must be a <code>Tree</code> or a <code>TreeItem</code>), |
| * a style value describing its behavior and appearance, and the index |
| * at which to place it in the items maintained by its parent. |
| * <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 tree control which will be the parent of the new instance (cannot be null) |
| * @param style the style of control to construct |
| * @param index the zero-relative index to store the receiver in its parent |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> |
| * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the parent (inclusive)</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 |
| * @see Widget#checkSubclass |
| * @see Widget#getStyle |
| */ |
| public TreeItem (Tree parent, int style, int index) { |
| this (parent, style, OS.TVGN_ROOT, findPrevious (parent, index), 0); |
| } |
| |
| /** |
| * Constructs a new instance of this class given its parent |
| * (which must be a <code>Tree</code> or a <code>TreeItem</code>) |
| * and a style value describing its behavior and appearance. |
| * The item is added to the end of the items maintained by its parent. |
| * <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 parentItem a tree 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 |
| * @see Widget#checkSubclass |
| * @see Widget#getStyle |
| */ |
| public TreeItem (TreeItem parentItem, int style) { |
| this (checkNull (parentItem).parent, style, parentItem.handle, OS.TVI_LAST, 0); |
| } |
| |
| /** |
| * Constructs a new instance of this class given its parent |
| * (which must be a <code>Tree</code> or a <code>TreeItem</code>), |
| * a style value describing its behavior and appearance, and the index |
| * at which to place it in the items maintained by its parent. |
| * <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 parentItem a tree control which will be the parent of the new instance (cannot be null) |
| * @param style the style of control to construct |
| * @param index the zero-relative index to store the receiver in its parent |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> |
| * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the parent (inclusive)</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 |
| * @see Widget#checkSubclass |
| * @see Widget#getStyle |
| */ |
| public TreeItem (TreeItem parentItem, int style, int index) { |
| this (checkNull (parentItem).parent, style, parentItem.handle, findPrevious (parentItem, index), 0); |
| } |
| |
| TreeItem (Tree parent, int style, long /*int*/ hParent, long /*int*/ hInsertAfter, long /*int*/ hItem) { |
| super (parent, style); |
| this.parent = parent; |
| parent.createItem (this, hParent, hInsertAfter, hItem); |
| } |
| |
| static TreeItem checkNull (TreeItem item) { |
| if (item == null) SWT.error (SWT.ERROR_NULL_ARGUMENT); |
| return item; |
| } |
| |
| static long /*int*/ findPrevious (Tree parent, int index) { |
| if (parent == null) return 0; |
| if (index < 0) SWT.error (SWT.ERROR_INVALID_RANGE); |
| if (index == 0) return OS.TVI_FIRST; |
| long /*int*/ hwnd = parent.handle; |
| long /*int*/ hFirstItem = OS.SendMessage (hwnd, OS.TVM_GETNEXTITEM, OS.TVGN_ROOT, 0); |
| long /*int*/ hItem = parent.findItem (hFirstItem, index - 1); |
| if (hItem == 0) SWT.error (SWT.ERROR_INVALID_RANGE); |
| return hItem; |
| } |
| |
| static long /*int*/ findPrevious (TreeItem parentItem, int index) { |
| if (parentItem == null) return 0; |
| if (index < 0) SWT.error (SWT.ERROR_INVALID_RANGE); |
| if (index == 0) return OS.TVI_FIRST; |
| Tree parent = parentItem.parent; |
| long /*int*/ hwnd = parent.handle, hParent = parentItem.handle; |
| long /*int*/ hFirstItem = OS.SendMessage (hwnd, OS.TVM_GETNEXTITEM, OS.TVGN_CHILD, hParent); |
| long /*int*/ hItem = parent.findItem (hFirstItem, index - 1); |
| if (hItem == 0) SWT.error (SWT.ERROR_INVALID_RANGE); |
| return hItem; |
| } |
| |
| @Override |
| protected void checkSubclass () { |
| if (!isValidSubclass ()) error (SWT.ERROR_INVALID_SUBCLASS); |
| } |
| |
| void clear () { |
| text = ""; |
| image = null; |
| strings = null; |
| images = null; |
| if ((parent.style & SWT.CHECK) != 0) { |
| long /*int*/ hwnd = parent.handle; |
| TVITEM tvItem = new TVITEM (); |
| tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_STATE; |
| tvItem.stateMask = OS.TVIS_STATEIMAGEMASK; |
| tvItem.state = 1 << 12; |
| tvItem.hItem = handle; |
| OS.SendMessage (hwnd, OS.TVM_SETITEM, 0, tvItem); |
| } |
| background = foreground = -1; |
| font = null; |
| cellBackground = cellForeground = null; |
| cellFont = null; |
| if ((parent.style & SWT.VIRTUAL) != 0) cached = false; |
| } |
| |
| /** |
| * 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 <code>SWT.VIRTUAL</code> 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 of the indexed item should be |
| * cleared recursively, 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 (); |
| long /*int*/ hwnd = parent.handle; |
| long /*int*/ hItem = OS.SendMessage (hwnd, OS.TVM_GETNEXTITEM, OS.TVGN_CHILD, handle); |
| if (hItem == 0) error (SWT.ERROR_INVALID_RANGE); |
| hItem = parent.findItem (hItem, index); |
| if (hItem == 0) error (SWT.ERROR_INVALID_RANGE); |
| TVITEM tvItem = new TVITEM (); |
| tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_PARAM; |
| parent.clear (hItem, tvItem); |
| if (all) { |
| hItem = OS.SendMessage (hwnd, OS.TVM_GETNEXTITEM, OS.TVGN_CHILD, hItem); |
| parent.clearAll (hItem, tvItem, all); |
| } |
| } |
| |
| /** |
| * Clears all the items in the receiver. The text, icon and other |
| * attributes of the items are set to their default values. If the |
| * tree was created with the <code>SWT.VIRTUAL</code> style, these |
| * attributes are requested again as needed. |
| * |
| * @param all <code>true</code> if all child items should be cleared |
| * recursively, 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 (); |
| long /*int*/ hwnd = parent.handle; |
| long /*int*/ hItem = OS.SendMessage (hwnd, OS.TVM_GETNEXTITEM, OS.TVGN_CHILD, handle); |
| if (hItem == 0) return; |
| TVITEM tvItem = new TVITEM (); |
| tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_PARAM; |
| parent.clearAll (hItem, tvItem, all); |
| } |
| |
| @Override |
| void destroyWidget () { |
| TVITEM tvItem = new TVITEM (); |
| tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_PARAM; |
| parent.releaseItem (handle, tvItem, false); |
| parent.destroyItem (this, handle); |
| releaseHandle (); |
| } |
| |
| long /*int*/ fontHandle (int index) { |
| if (cellFont != null && cellFont [index] != null) return cellFont [index].handle; |
| if (font != null) return font.handle; |
| return -1; |
| } |
| |
| /** |
| * Returns the receiver's background color. |
| * |
| * @return the background color |
| * |
| * @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 2.0 |
| * |
| */ |
| public Color getBackground () { |
| checkWidget (); |
| if (!parent.checkData (this, true)) error (SWT.ERROR_WIDGET_DISPOSED); |
| if (background == -1) return parent.getBackground (); |
| return Color.win32_new (display, background); |
| } |
| |
| /** |
| * Returns the background color at the given column index in the receiver. |
| * |
| * @param index the column index |
| * @return the background color |
| * |
| * @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 Color getBackground (int index) { |
| checkWidget (); |
| if (!parent.checkData (this, true)) error (SWT.ERROR_WIDGET_DISPOSED); |
| int count = Math.max (1, parent.getColumnCount ()); |
| if (0 > index || index > count - 1) return getBackground (); |
| int pixel = cellBackground != null ? cellBackground [index] : -1; |
| return pixel == -1 ? getBackground () : Color.win32_new (display, pixel); |
| } |
| |
| /** |
| * Returns a rectangle describing the size and location of the receiver's |
| * text relative to its parent. |
| * |
| * @return the bounding rectangle of the receiver's text |
| * |
| * @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 Rectangle getBounds () { |
| checkWidget (); |
| return DPIUtil.autoScaleDown(getBoundsInPixels()); |
| } |
| |
| Rectangle getBoundsInPixels () { |
| if (!parent.checkData (this, true)) error (SWT.ERROR_WIDGET_DISPOSED); |
| RECT rect = getBounds (0, true, false, false); |
| int width = rect.right - rect.left, height = rect.bottom - rect.top; |
| return new Rectangle (rect.left, rect.top, width, height); |
| } |
| |
| /** |
| * Returns a rectangle describing the receiver's size and location |
| * relative to its parent at a column in the tree. |
| * |
| * @param index the index that specifies the column |
| * @return the receiver's bounding column rectangle |
| * |
| * @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 Rectangle getBounds (int index) { |
| checkWidget(); |
| return DPIUtil.autoScaleDown(getBoundsInPixels(index)); |
| } |
| |
| Rectangle getBoundsInPixels (int index) { |
| if (!parent.checkData (this, true)) error (SWT.ERROR_WIDGET_DISPOSED); |
| RECT rect = getBounds (index, true, true, true); |
| int width = rect.right - rect.left, height = rect.bottom - rect.top; |
| return new Rectangle (rect.left, rect.top, width, height); |
| } |
| |
| RECT getBounds (int index, boolean getText, boolean getImage, boolean fullText) { |
| return getBounds (index, getText, getImage, fullText, false, true, 0); |
| } |
| |
| //TODO - take into account grid (add boolean arg) to damage less during redraw |
| RECT getBounds (int index, boolean getText, boolean getImage, boolean fullText, boolean fullImage, boolean clip, long /*int*/ hDC) { |
| if (!getText && !getImage) return new RECT (); |
| long /*int*/ hwnd = parent.handle; |
| if ((parent.style & SWT.VIRTUAL) == 0 && !cached && !parent.painted) { |
| TVITEM tvItem = new TVITEM (); |
| tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_TEXT; |
| tvItem.hItem = handle; |
| tvItem.pszText = OS.LPSTR_TEXTCALLBACK; |
| parent.ignoreCustomDraw = true; |
| OS.SendMessage (hwnd, OS.TVM_SETITEM, 0, tvItem); |
| parent.ignoreCustomDraw = false; |
| } |
| boolean firstColumn = index == 0; |
| int columnCount = 0; |
| long /*int*/ hwndHeader = parent.hwndHeader; |
| if (hwndHeader != 0) { |
| columnCount = parent.columnCount; |
| firstColumn = index == OS.SendMessage (hwndHeader, OS.HDM_ORDERTOINDEX, 0, 0); |
| } |
| RECT rect = new RECT (); |
| if (firstColumn) { |
| boolean full = columnCount == 0 && getText && getImage && fullText && fullImage; |
| if (!OS.TreeView_GetItemRect (hwnd, handle, rect, !full)) { |
| return new RECT (); |
| } |
| if (getImage && !fullImage) { |
| if (OS.SendMessage (hwnd, OS.TVM_GETIMAGELIST, OS.TVSIL_NORMAL, 0) != 0) { |
| Point size = parent.getImageSize (); |
| rect.left -= size.x + Tree.INSET; |
| if (!getText) rect.right = rect.left + size.x; |
| } else { |
| if (!getText) rect.right = rect.left; |
| } |
| } |
| if (fullText || fullImage || clip) { |
| if (hwndHeader != 0) { |
| RECT headerRect = new RECT (); |
| if (columnCount != 0) { |
| if (OS.SendMessage (hwndHeader, OS.HDM_GETITEMRECT, index, headerRect) == 0) { |
| return new RECT (); |
| } |
| } else { |
| headerRect.right = parent.scrollWidth; |
| if (headerRect.right == 0) headerRect = rect; |
| } |
| if (fullText && clip) rect.right = headerRect.right; |
| if (fullImage) rect.left = headerRect.left; |
| if (clip && headerRect.right < rect.right) { |
| rect.right = headerRect.right; |
| } |
| } |
| } |
| } else { |
| if (!(0 <= index && index < columnCount)) return new RECT (); |
| RECT headerRect = new RECT (); |
| if (OS.SendMessage (hwndHeader, OS.HDM_GETITEMRECT, index, headerRect) == 0) { |
| return new RECT (); |
| } |
| if (!OS.TreeView_GetItemRect (hwnd, handle, rect, false)) { |
| return new RECT (); |
| } |
| rect.left = headerRect.left; |
| if (fullText && getImage && clip) { |
| rect.right = headerRect.right; |
| } else { |
| rect.right = headerRect.left; |
| Image image = null; |
| if (index == 0) { |
| image = this.image; |
| } else { |
| if (images != null) image = images [index]; |
| } |
| if (image != null) { |
| Point size = parent.getImageSize (); |
| rect.right += size.x; |
| } |
| if (getText) { |
| if (fullText && clip) { |
| rect.left = rect.right + Tree.INSET; |
| rect.right = headerRect.right; |
| } else { |
| String string = index == 0 ? text : strings != null ? strings [index] : null; |
| if (string != null) { |
| RECT textRect = new RECT (); |
| TCHAR buffer = new TCHAR (parent.getCodePage (), string, false); |
| int flags = OS.DT_NOPREFIX | OS.DT_SINGLELINE | OS.DT_CALCRECT; |
| long /*int*/ hNewDC = hDC, hFont = 0; |
| if (hDC == 0) { |
| hNewDC = OS.GetDC (hwnd); |
| hFont = fontHandle (index); |
| if (hFont == -1) hFont = OS.SendMessage (hwnd, OS.WM_GETFONT, 0, 0); |
| hFont = OS.SelectObject (hNewDC, hFont); |
| } |
| OS.DrawText (hNewDC, buffer, buffer.length (), textRect, flags); |
| if (hDC == 0) { |
| OS.SelectObject (hNewDC, hFont); |
| OS.ReleaseDC (hwnd, hNewDC); |
| } |
| if (getImage) { |
| rect.right += textRect.right - textRect.left + Tree.INSET * 3; |
| } else { |
| rect.left = rect.right + Tree.INSET; |
| rect.right = rect.left + (textRect.right - textRect.left) + Tree.INSET; |
| } |
| } |
| } |
| } |
| if (clip && headerRect.right < rect.right) { |
| rect.right = headerRect.right; |
| } |
| } |
| } |
| int gridWidth = parent.linesVisible && columnCount != 0 ? Tree.GRID_WIDTH : 0; |
| if (getText || !getImage) { |
| rect.right = Math.max (rect.left, rect.right - gridWidth); |
| } |
| rect.bottom = Math.max (rect.top, rect.bottom - gridWidth); |
| return rect; |
| } |
| |
| /** |
| * Returns <code>true</code> if the receiver is checked, |
| * and false otherwise. When the parent does not have |
| * the <code>CHECK style, return false. |
| * <p> |
| * |
| * @return the checked 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> |
| */ |
| public boolean getChecked () { |
| checkWidget (); |
| if (!parent.checkData (this, true)) error (SWT.ERROR_WIDGET_DISPOSED); |
| if ((parent.style & SWT.CHECK) == 0) return false; |
| long /*int*/ hwnd = parent.handle; |
| TVITEM tvItem = new TVITEM (); |
| tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_STATE; |
| tvItem.stateMask = OS.TVIS_STATEIMAGEMASK; |
| tvItem.hItem = handle; |
| long /*int*/ result = OS.SendMessage (hwnd, OS.TVM_GETITEM, 0, tvItem); |
| return (result != 0) && (((tvItem.state >> 12) & 1) == 0); |
| } |
| |
| /** |
| * Returns <code>true</code> if the receiver is expanded, |
| * and false otherwise. |
| * <p> |
| * |
| * @return the expanded 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> |
| */ |
| public boolean getExpanded () { |
| checkWidget (); |
| long /*int*/ hwnd = parent.handle; |
| /* |
| * Bug in Windows. Despite the fact that TVM_GETITEMSTATE claims |
| * to return only the bits specified by the stateMask, when called |
| * with TVIS_EXPANDED, the entire state is returned. The fix is |
| * to explicitly check for the TVIS_EXPANDED bit. |
| */ |
| int state = (int)/*64*/OS.SendMessage (hwnd, OS.TVM_GETITEMSTATE, handle, OS.TVIS_EXPANDED); |
| return (state & OS.TVIS_EXPANDED) != 0; |
| } |
| |
| /** |
| * Returns the font that the receiver will use to paint textual information for this item. |
| * |
| * @return the receiver's font |
| * |
| * @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 3.0 |
| */ |
| public Font getFont () { |
| checkWidget (); |
| if (!parent.checkData (this, true)) error (SWT.ERROR_WIDGET_DISPOSED); |
| return font != null ? font : parent.getFont (); |
| } |
| |
| /** |
| * Returns the font that the receiver will use to paint textual information |
| * for the specified cell in this item. |
| * |
| * @param index the column index |
| * @return the receiver's font |
| * |
| * @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 Font getFont (int index) { |
| checkWidget (); |
| if (!parent.checkData (this, true)) error (SWT.ERROR_WIDGET_DISPOSED); |
| int count = Math.max (1, parent.getColumnCount ()); |
| if (0 > index || index > count -1) return getFont (); |
| if (cellFont == null || cellFont [index] == null) return getFont (); |
| return cellFont [index]; |
| } |
| |
| /** |
| * Returns the foreground color that the receiver will use to draw. |
| * |
| * @return the receiver's foreground color |
| * |
| * @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 2.0 |
| * |
| */ |
| public Color getForeground () { |
| checkWidget (); |
| if (!parent.checkData (this, true)) error (SWT.ERROR_WIDGET_DISPOSED); |
| if (foreground == -1) return parent.getForeground (); |
| return Color.win32_new (display, foreground); |
| } |
| |
| /** |
| * |
| * Returns the foreground color at the given column index in the receiver. |
| * |
| * @param index the column index |
| * @return the foreground color |
| * |
| * @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 Color getForeground (int index) { |
| checkWidget (); |
| if (!parent.checkData (this, true)) error (SWT.ERROR_WIDGET_DISPOSED); |
| int count = Math.max (1, parent.getColumnCount ()); |
| if (0 > index || index > count -1) return getForeground (); |
| int pixel = cellForeground != null ? cellForeground [index] : -1; |
| return pixel == -1 ? getForeground () : Color.win32_new (display, pixel); |
| } |
| |
| /** |
| * Returns <code>true</code> if the receiver is grayed, |
| * and false otherwise. When the parent does not have |
| * the <code>CHECK style, return false. |
| * <p> |
| * |
| * @return the grayed state of the checkbox |
| * |
| * @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 boolean getGrayed () { |
| checkWidget (); |
| if (!parent.checkData (this, true)) error (SWT.ERROR_WIDGET_DISPOSED); |
| if ((parent.style & SWT.CHECK) == 0) return false; |
| long /*int*/ hwnd = parent.handle; |
| TVITEM tvItem = new TVITEM (); |
| tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_STATE; |
| tvItem.stateMask = OS.TVIS_STATEIMAGEMASK; |
| tvItem.hItem = handle; |
| long /*int*/ result = OS.SendMessage (hwnd, OS.TVM_GETITEM, 0, tvItem); |
| return (result != 0) && ((tvItem.state >> 12) > 2); |
| } |
| |
| /** |
| * 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); |
| if (!parent.checkData (this, true)) error (SWT.ERROR_WIDGET_DISPOSED); |
| long /*int*/ hwnd = parent.handle; |
| long /*int*/ hFirstItem = OS.SendMessage (hwnd, OS.TVM_GETNEXTITEM, OS.TVGN_CHILD, handle); |
| if (hFirstItem == 0) error (SWT.ERROR_INVALID_RANGE); |
| long /*int*/ hItem = parent.findItem (hFirstItem, index); |
| if (hItem == 0) error (SWT.ERROR_INVALID_RANGE); |
| return parent._getItem (hItem); |
| } |
| |
| /** |
| * Returns the number of items contained in the receiver |
| * that are direct item children of 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 (); |
| if (!parent.checkData (this, true)) error (SWT.ERROR_WIDGET_DISPOSED); |
| long /*int*/ hwnd = parent.handle; |
| long /*int*/ hItem = OS.SendMessage (hwnd, OS.TVM_GETNEXTITEM, OS.TVGN_CHILD, handle); |
| if (hItem == 0) return 0; |
| return parent.getItemCount (hItem); |
| } |
| |
| /** |
| * Returns a (possibly empty) array of <code>TreeItem</code>s which |
| * are the direct item children of 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 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> |
| */ |
| public TreeItem [] getItems () { |
| checkWidget (); |
| if (!parent.checkData (this, true)) error (SWT.ERROR_WIDGET_DISPOSED); |
| long /*int*/ hwnd = parent.handle; |
| long /*int*/ hItem = OS.SendMessage (hwnd, OS.TVM_GETNEXTITEM, OS.TVGN_CHILD, handle); |
| if (hItem == 0) return new TreeItem [0]; |
| return parent.getItems (hItem); |
| } |
| |
| @Override |
| public Image getImage () { |
| checkWidget(); |
| if (!parent.checkData (this, true)) error (SWT.ERROR_WIDGET_DISPOSED); |
| return super.getImage (); |
| } |
| |
| /** |
| * Returns the image stored at the given column index in the receiver, |
| * or null if the image has not been set or if the column does not exist. |
| * |
| * @param index the column index |
| * @return the image stored at the given column index 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 Image getImage (int index) { |
| checkWidget(); |
| if (!parent.checkData (this, true)) error (SWT.ERROR_WIDGET_DISPOSED); |
| if (index == 0) return getImage (); |
| if (images != null) { |
| if (0 <= index && index < images.length) return images [index]; |
| } |
| return null; |
| } |
| |
| /** |
| * Returns a rectangle describing the size and location |
| * relative to its parent of an image at a column in the |
| * tree. |
| * |
| * @param index the index that specifies the column |
| * @return the receiver's bounding image rectangle |
| * |
| * @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 Rectangle getImageBounds (int index) { |
| checkWidget(); |
| return DPIUtil.autoScaleDown(getImageBoundsInPixels(index)); |
| } |
| |
| Rectangle getImageBoundsInPixels (int index) { |
| if (!parent.checkData (this, true)) error (SWT.ERROR_WIDGET_DISPOSED); |
| RECT rect = getBounds (index, false, true, false); |
| int width = rect.right - rect.left, height = rect.bottom - rect.top; |
| return new Rectangle (rect.left, rect.top, width, height); |
| } |
| |
| /** |
| * Returns the receiver's parent, which must be a <code>Tree</code>. |
| * |
| * @return the receiver's parent |
| * |
| * @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 Tree getParent () { |
| checkWidget (); |
| return parent; |
| } |
| |
| /** |
| * 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 (); |
| long /*int*/ hwnd = parent.handle; |
| long /*int*/ hItem = OS.SendMessage (hwnd, OS.TVM_GETNEXTITEM, OS.TVGN_PARENT, handle); |
| return hItem != 0 ? parent._getItem (hItem) : null; |
| } |
| |
| @Override |
| public String getText () { |
| checkWidget(); |
| if (!parent.checkData (this, true)) error (SWT.ERROR_WIDGET_DISPOSED); |
| return super.getText (); |
| } |
| |
| /** |
| * Returns the text stored at the given column index in the receiver, |
| * or empty string if the text has not been set. |
| * |
| * @param index the column index |
| * @return the text stored at the given column index 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 String getText (int index) { |
| checkWidget(); |
| if (!parent.checkData (this, true)) error (SWT.ERROR_WIDGET_DISPOSED); |
| if (index == 0) return getText (); |
| if (strings != null) { |
| if (0 <= index && index < strings.length) { |
| String string = strings [index]; |
| return string != null ? string : ""; |
| } |
| } |
| return ""; |
| } |
| |
| /** |
| * Returns a rectangle describing the size and location |
| * relative to its parent of the text at a column in the |
| * tree. |
| * |
| * @param index the index that specifies the column |
| * @return the receiver's bounding text rectangle |
| * |
| * @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 3.3 |
| */ |
| public Rectangle getTextBounds (int index) { |
| checkWidget(); |
| return DPIUtil.autoScaleDown(getTextBoundsInPixels(index)); |
| } |
| |
| Rectangle getTextBoundsInPixels (int index) { |
| if (!parent.checkData (this, true)) error (SWT.ERROR_WIDGET_DISPOSED); |
| RECT rect = getBounds (index, true, false, true); |
| if (index == 0) rect.left += Tree.INSET - 1; |
| rect.left = Math.min (rect.left, rect.right); |
| rect.right = rect.right - Tree.INSET; |
| int width = Math.max (0, rect.right - rect.left); |
| int height = Math.max (0, rect.bottom - rect.top); |
| return new Rectangle (rect.left, rect.top, width, height); |
| } |
| |
| /** |
| * 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> |
| * |
| * @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); |
| long /*int*/ hwnd = parent.handle; |
| long /*int*/ hItem = OS.SendMessage (hwnd, OS.TVM_GETNEXTITEM, OS.TVGN_CHILD, handle); |
| return hItem == 0 ? -1 : parent.findIndex (hItem, item.handle); |
| } |
| |
| void redraw () { |
| if (parent.currentItem == this || !parent.getDrawing ()) return; |
| long /*int*/ hwnd = parent.handle; |
| if (!OS.IsWindowVisible (hwnd)) return; |
| /* |
| * When there are no columns and the tree is not |
| * full selection, redraw only the text. This is |
| * an optimization to reduce flashing. |
| */ |
| boolean full = (parent.style & (SWT.FULL_SELECTION | SWT.VIRTUAL)) != 0; |
| if (!full) { |
| full = parent.columnCount != 0; |
| if (!full) { |
| if (parent.hooks (SWT.EraseItem) || parent.hooks (SWT.PaintItem)) { |
| full = true; |
| } |
| } |
| } |
| RECT rect = new RECT (); |
| if (OS.TreeView_GetItemRect (hwnd, handle, rect, !full)) { |
| OS.InvalidateRect (hwnd, rect, true); |
| } |
| } |
| |
| void redraw (int column, boolean drawText, boolean drawImage) { |
| if (parent.currentItem == this || !parent.getDrawing ()) return; |
| long /*int*/ hwnd = parent.handle; |
| if (!OS.IsWindowVisible (hwnd)) return; |
| boolean fullImage = column == 0 && drawText && drawImage; |
| RECT rect = getBounds (column, drawText, drawImage, true, fullImage, true, 0); |
| OS.InvalidateRect (hwnd, rect, true); |
| } |
| |
| @Override |
| void releaseChildren (boolean destroy) { |
| if (destroy) { |
| TVITEM tvItem = new TVITEM (); |
| tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_PARAM; |
| parent.releaseItems (handle, tvItem); |
| } |
| super.releaseChildren (destroy); |
| } |
| |
| @Override |
| void releaseHandle () { |
| super.releaseHandle (); |
| handle = 0; |
| parent = null; |
| } |
| |
| @Override |
| void releaseWidget () { |
| super.releaseWidget (); |
| strings = null; |
| images = null; |
| cellBackground = cellForeground = null; |
| cellFont = null; |
| } |
| |
| /** |
| * 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> |
| * |
| * @since 3.1 |
| */ |
| public void removeAll () { |
| checkWidget (); |
| long /*int*/ hwnd = parent.handle; |
| TVITEM tvItem = new TVITEM (); |
| tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_PARAM; |
| tvItem.hItem = OS.SendMessage (hwnd, OS.TVM_GETNEXTITEM, OS.TVGN_CHILD, handle); |
| while (tvItem.hItem != 0) { |
| OS.SendMessage (hwnd, OS.TVM_GETITEM, 0, tvItem); |
| TreeItem item = tvItem.lParam != -1 ? parent.items [(int)/*64*/tvItem.lParam] : null; |
| if (item != null && !item.isDisposed ()) { |
| item.dispose (); |
| } else { |
| parent.releaseItem (tvItem.hItem, tvItem, false); |
| parent.destroyItem (null, tvItem.hItem); |
| } |
| tvItem.hItem = OS.SendMessage (hwnd, OS.TVM_GETNEXTITEM, OS.TVGN_CHILD, handle); |
| } |
| } |
| |
| /** |
| * Sets the receiver's background color to the color specified |
| * by the argument, or to the default system color for the item |
| * if the argument is null. |
| * |
| * @param color the new color (or null) |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the argument 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 2.0 |
| * |
| */ |
| public void setBackground (Color color) { |
| checkWidget (); |
| if (color != null && color.isDisposed ()) { |
| error (SWT.ERROR_INVALID_ARGUMENT); |
| } |
| int pixel = -1; |
| if (color != null) { |
| parent.customDraw = true; |
| pixel = color.handle; |
| } |
| if (background == pixel) return; |
| background = pixel; |
| if ((parent.style & SWT.VIRTUAL) != 0) cached = true; |
| redraw (); |
| } |
| |
| /** |
| * Sets the background color at the given column index in the receiver |
| * to the color specified by the argument, or to the default system color for the item |
| * if the argument is null. |
| * |
| * @param index the column index |
| * @param color the new color (or null) |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the argument 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 setBackground (int index, Color color) { |
| checkWidget (); |
| if (color != null && color.isDisposed ()) { |
| error (SWT.ERROR_INVALID_ARGUMENT); |
| } |
| int count = Math.max (1, parent.getColumnCount ()); |
| if (0 > index || index > count - 1) return; |
| int pixel = -1; |
| if (color != null) { |
| parent.customDraw = true; |
| pixel = color.handle; |
| } |
| if (cellBackground == null) { |
| cellBackground = new int [count]; |
| for (int i = 0; i < count; i++) { |
| cellBackground [i] = -1; |
| } |
| } |
| if (cellBackground [index] == pixel) return; |
| cellBackground [index] = pixel; |
| if ((parent.style & SWT.VIRTUAL) != 0) cached = true; |
| redraw (index, true, true); |
| } |
| |
| /** |
| * Sets the checked state of the receiver. |
| * <p> |
| * |
| * @param checked the new checked 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> |
| */ |
| public void setChecked (boolean checked) { |
| checkWidget (); |
| if ((parent.style & SWT.CHECK) == 0) return; |
| long /*int*/ hwnd = parent.handle; |
| TVITEM tvItem = new TVITEM (); |
| tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_STATE; |
| tvItem.stateMask = OS.TVIS_STATEIMAGEMASK; |
| tvItem.hItem = handle; |
| OS.SendMessage (hwnd, OS.TVM_GETITEM, 0, tvItem); |
| int state = tvItem.state >> 12; |
| if (checked) { |
| if ((state & 0x1) != 0) state++; |
| } else { |
| if ((state & 0x1) == 0) --state; |
| } |
| state <<= 12; |
| if (tvItem.state == state) return; |
| if ((parent.style & SWT.VIRTUAL) != 0) cached = true; |
| tvItem.state = state; |
| OS.SendMessage (hwnd, OS.TVM_SETITEM, 0, tvItem); |
| /* |
| * Bug in Windows. When TVM_SETITEM is used to set |
| * the state image of an item inside TVN_GETDISPINFO, |
| * the new state is not redrawn. The fix is to force |
| * a redraw. |
| */ |
| if ((parent.style & SWT.VIRTUAL) != 0) { |
| if (parent.currentItem == this && OS.IsWindowVisible (hwnd)) { |
| RECT rect = new RECT (); |
| if (OS.TreeView_GetItemRect (hwnd, handle, rect, false)) { |
| OS.InvalidateRect (hwnd, rect, true); |
| } |
| } |
| } |
| } |
| |
| /** |
| * Sets the expanded state of the receiver. |
| * <p> |
| * |
| * @param expanded the new expanded 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> |
| */ |
| public void setExpanded (boolean expanded) { |
| checkWidget (); |
| |
| /* Do nothing when the item is a leaf or already expanded */ |
| long /*int*/ hwnd = parent.handle; |
| if (OS.SendMessage (hwnd, OS.TVM_GETNEXTITEM, OS.TVGN_CHILD, handle) == 0) { |
| return; |
| } |
| /* |
| * Bug in Windows. Despite the fact that TVM_GETITEMSTATE claims |
| * to return only the bits specified by the stateMask, when called |
| * with TVIS_EXPANDED, the entire state is returned. The fix is |
| * to explicitly check for the TVIS_EXPANDED bit. |
| */ |
| int state = (int)/*64*/OS.SendMessage (hwnd, OS.TVM_GETITEMSTATE, handle, OS.TVIS_EXPANDED); |
| if (((state & OS.TVIS_EXPANDED) != 0) == expanded) return; |
| |
| /* |
| * Feature in Windows. When TVM_EXPAND is used to expand |
| * an item, the widget scrolls to show the item and the |
| * newly expanded items. While not strictly incorrect, |
| * this means that application code that expands tree items |
| * in a background thread can scroll the widget while the |
| * user is interacting with it. The fix is to remember |
| * the top item and the bounds of every tree item, turn |
| * redraw off, expand the item, scroll back to the top |
| * item. If none of the rectangles have moved, then |
| * it is safe to turn redraw back on without redrawing |
| * the control. |
| */ |
| RECT oldRect = null; |
| RECT [] rects = null; |
| SCROLLINFO oldInfo = null; |
| int count = 0; |
| long /*int*/ hBottomItem = 0; |
| boolean redraw = false, noScroll = true; |
| long /*int*/ hTopItem = OS.SendMessage (hwnd, OS.TVM_GETNEXTITEM, OS.TVGN_FIRSTVISIBLE, 0); |
| if (noScroll && hTopItem != 0) { |
| oldInfo = new SCROLLINFO (); |
| oldInfo.cbSize = SCROLLINFO.sizeof; |
| oldInfo.fMask = OS.SIF_ALL; |
| if (!OS.GetScrollInfo (hwnd, OS.SB_HORZ, oldInfo)) { |
| oldInfo = null; |
| } |
| if (parent.getDrawing () && OS.IsWindowVisible (hwnd)) { |
| boolean noAnimate = true; |
| count = (int)/*64*/OS.SendMessage (hwnd, OS.TVM_GETVISIBLECOUNT, 0, 0); |
| rects = new RECT [count + 1]; |
| long /*int*/ hItem = hTopItem; |
| int index = 0; |
| while (hItem != 0 && (noAnimate || hItem != handle) && index < count) { |
| RECT rect = new RECT (); |
| if (OS.TreeView_GetItemRect (hwnd, hItem, rect, true)) { |
| rects [index++] = rect; |
| } |
| hItem = OS.SendMessage (hwnd, OS.TVM_GETNEXTITEM, OS.TVGN_NEXTVISIBLE, hItem); |
| } |
| if (noAnimate || hItem != handle) { |
| redraw = true; |
| count = index; |
| hBottomItem = hItem; |
| oldRect = new RECT (); |
| OS.GetClientRect (hwnd, oldRect); |
| long /*int*/ topHandle = parent.topHandle (); |
| OS.UpdateWindow (topHandle); |
| OS.DefWindowProc (topHandle, OS.WM_SETREDRAW, 0, 0); |
| if (hwnd != topHandle) { |
| OS.UpdateWindow (hwnd); |
| OS.DefWindowProc (hwnd, OS.WM_SETREDRAW, 0, 0); |
| } |
| /* |
| * This code is intentionally commented. |
| */ |
| // OS.SendMessage (hwnd, OS.WM_SETREDRAW, 0, 0); |
| } |
| } |
| } |
| |
| /* |
| * Feature in Windows. When the user collapses the root |
| * of a subtree that has the focus item, Windows moves |
| * the selection to the root of the subtree and issues |
| * a TVN_SELCHANGED to inform the programmer that the |
| * selection has changed. When the programmer collapses |
| * the same subtree using TVM_EXPAND, Windows does not |
| * send the selection changed notification. This is not |
| * strictly wrong but is inconsistent. The fix is to |
| * check whether the selection has changed and issue |
| * the event. |
| */ |
| long /*int*/ hOldItem = OS.SendMessage (hwnd, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0); |
| |
| /* Expand or collapse the item */ |
| parent.ignoreExpand = true; |
| OS.SendMessage (hwnd, OS.TVM_EXPAND, expanded ? OS.TVE_EXPAND : OS.TVE_COLLAPSE, handle); |
| parent.ignoreExpand = false; |
| |
| /* Scroll back to the top item */ |
| if (noScroll && hTopItem != 0) { |
| boolean collapsed = false; |
| if (!expanded) { |
| RECT rect = new RECT (); |
| while (hTopItem != 0 && !OS.TreeView_GetItemRect (hwnd, hTopItem, rect, false)) { |
| hTopItem = OS.SendMessage (hwnd, OS.TVM_GETNEXTITEM, OS.TVGN_PARENT, hTopItem); |
| collapsed = true; |
| } |
| } |
| boolean scrolled = true; |
| if (hTopItem != 0) { |
| OS.SendMessage (hwnd, OS.TVM_SELECTITEM, OS.TVGN_FIRSTVISIBLE, hTopItem); |
| scrolled = hTopItem != OS.SendMessage (hwnd, OS.TVM_GETNEXTITEM, OS.TVGN_FIRSTVISIBLE, 0); |
| } |
| if (!collapsed && !scrolled && oldInfo != null) { |
| SCROLLINFO newInfo = new SCROLLINFO (); |
| newInfo.cbSize = SCROLLINFO.sizeof; |
| newInfo.fMask = OS.SIF_ALL; |
| if (OS.GetScrollInfo (hwnd, OS.SB_HORZ, newInfo)) { |
| if (oldInfo.nPos != newInfo.nPos) { |
| long /*int*/ lParam = OS.MAKELPARAM (OS.SB_THUMBPOSITION, oldInfo.nPos); |
| OS.SendMessage (hwnd, OS.WM_HSCROLL, lParam, 0); |
| } |
| } |
| } |
| if (redraw) { |
| boolean fixScroll = false; |
| if (!collapsed && !scrolled) { |
| RECT newRect = new RECT (); |
| OS.GetClientRect (hwnd, newRect); |
| if (OS.EqualRect (oldRect, newRect)) { |
| long /*int*/ hItem = hTopItem; |
| int index = 0; |
| while (hItem != 0 && index < count) { |
| RECT rect = new RECT (); |
| if (OS.TreeView_GetItemRect (hwnd, hItem, rect, true)) { |
| if (!OS.EqualRect (rect, rects [index])) { |
| break; |
| } |
| } |
| hItem = OS.SendMessage (hwnd, OS.TVM_GETNEXTITEM, OS.TVGN_NEXTVISIBLE, hItem); |
| index++; |
| } |
| fixScroll = index == count && hItem == hBottomItem; |
| } |
| } |
| long /*int*/ topHandle = parent.topHandle (); |
| OS.DefWindowProc (topHandle, OS.WM_SETREDRAW, 1, 0); |
| if (hwnd != topHandle) { |
| OS.DefWindowProc (hwnd, OS.WM_SETREDRAW, 1, 0); |
| } |
| /* |
| * This code is intentionally commented. |
| */ |
| // OS.SendMessage (hwnd, OS.WM_SETREDRAW, 1, 0); |
| if (fixScroll) { |
| parent.updateScrollBar (); |
| SCROLLINFO info = new SCROLLINFO (); |
| info.cbSize = SCROLLINFO.sizeof; |
| info.fMask = OS.SIF_ALL; |
| if (OS.GetScrollInfo (hwnd, OS.SB_VERT, info)) { |
| OS.SetScrollInfo (hwnd, OS.SB_VERT, info, true); |
| } |
| if (handle == hBottomItem) { |
| RECT rect = new RECT (); |
| if (OS.TreeView_GetItemRect (hwnd, hBottomItem, rect, false)) { |
| OS.InvalidateRect (hwnd, rect, true); |
| } |
| } |
| } else { |
| int flags = OS.RDW_ERASE | OS.RDW_FRAME | OS.RDW_INVALIDATE | OS.RDW_ALLCHILDREN; |
| OS.RedrawWindow (topHandle, null, 0, flags); |
| } |
| } |
| } |
| |
| /* Check for a selection event */ |
| long /*int*/ hNewItem = OS.SendMessage (hwnd, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0); |
| if (hNewItem != hOldItem) { |
| Event event = new Event (); |
| if (hNewItem != 0) { |
| event.item = parent._getItem (hNewItem); |
| parent.hAnchor = hNewItem; |
| } |
| parent.sendSelectionEvent (SWT.Selection, event, true); |
| } |
| } |
| |
| /** |
| * Sets the font that the receiver will use to paint textual information |
| * for this item to the font specified by the argument, or to the default font |
| * for that kind of control if the argument is null. |
| * |
| * @param font the new font (or null) |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the argument 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 3.0 |
| */ |
| public void setFont (Font font){ |
| checkWidget (); |
| if (font != null && font.isDisposed ()) { |
| error (SWT.ERROR_INVALID_ARGUMENT); |
| } |
| Font oldFont = this.font; |
| if (oldFont == font) return; |
| this.font = font; |
| if (oldFont != null && oldFont.equals (font)) return; |
| if (font != null) parent.customDraw = true; |
| if ((parent.style & SWT.VIRTUAL) != 0) cached = true; |
| /* |
| * Bug in Windows. When 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 reset the text, causing |
| * Windows to compute the new bounds using the new font. |
| */ |
| if ((parent.style & SWT.VIRTUAL) == 0 && !cached && !parent.painted) { |
| return; |
| } |
| long /*int*/ hwnd = parent.handle; |
| TVITEM tvItem = new TVITEM (); |
| tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_TEXT; |
| tvItem.hItem = handle; |
| tvItem.pszText = OS.LPSTR_TEXTCALLBACK; |
| OS.SendMessage (hwnd, OS.TVM_SETITEM, 0, tvItem); |
| } |
| |
| |
| /** |
| * Sets the font that the receiver will use to paint textual information |
| * for the specified cell in this item to the font specified by the |
| * argument, or to the default font for that kind of control if the |
| * argument is null. |
| * |
| * @param index the column index |
| * @param font the new font (or null) |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the argument 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 setFont (int index, Font font) { |
| checkWidget (); |
| if (font != null && font.isDisposed ()) { |
| error (SWT.ERROR_INVALID_ARGUMENT); |
| } |
| int count = Math.max (1, parent.getColumnCount ()); |
| if (0 > index || index > count - 1) return; |
| if (cellFont == null) { |
| if (font == null) return; |
| cellFont = new Font [count]; |
| } |
| Font oldFont = cellFont [index]; |
| if (oldFont == font) return; |
| cellFont [index] = font; |
| if (oldFont != null && oldFont.equals (font)) return; |
| if (font != null) parent.customDraw = true; |
| if ((parent.style & SWT.VIRTUAL) != 0) cached = true; |
| /* |
| * Bug in Windows. When 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 reset the text, causing |
| * Windows to compute the new bounds using the new font. |
| */ |
| if (index == 0) { |
| if ((parent.style & SWT.VIRTUAL) == 0 && !cached && !parent.painted) { |
| return; |
| } |
| long /*int*/ hwnd = parent.handle; |
| TVITEM tvItem = new TVITEM (); |
| tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_TEXT; |
| tvItem.hItem = handle; |
| tvItem.pszText = OS.LPSTR_TEXTCALLBACK; |
| OS.SendMessage (hwnd, OS.TVM_SETITEM, 0, tvItem); |
| } else { |
| redraw (index, true, false); |
| } |
| } |
| |
| /** |
| * Sets the receiver's foreground color to the color specified |
| * by the argument, or to the default system color for the item |
| * if the argument is null. |
| * |
| * @param color the new color (or null) |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the argument 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 2.0 |
| * |
| */ |
| public void setForeground (Color color) { |
| checkWidget (); |
| if (color != null && color.isDisposed ()) { |
| error (SWT.ERROR_INVALID_ARGUMENT); |
| } |
| int pixel = -1; |
| if (color != null) { |
| parent.customDraw = true; |
| pixel = color.handle; |
| } |
| if (foreground == pixel) return; |
| foreground = pixel; |
| if ((parent.style & SWT.VIRTUAL) != 0) cached = true; |
| redraw (); |
| } |
| |
| /** |
| * Sets the foreground color at the given column index in the receiver |
| * to the color specified by the argument, or to the default system color for the item |
| * if the argument is null. |
| * |
| * @param index the column index |
| * @param color the new color (or null) |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the argument 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 setForeground (int index, Color color){ |
| checkWidget (); |
| if (color != null && color.isDisposed ()) { |
| error (SWT.ERROR_INVALID_ARGUMENT); |
| } |
| int count = Math.max (1, parent.getColumnCount ()); |
| if (0 > index || index > count - 1) return; |
| int pixel = -1; |
| if (color != null) { |
| parent.customDraw = true; |
| pixel = color.handle; |
| } |
| if (cellForeground == null) { |
| cellForeground = new int [count]; |
| for (int i = 0; i < count; i++) { |
| cellForeground [i] = -1; |
| } |
| } |
| if (cellForeground [index] == pixel) return; |
| cellForeground [index] = pixel; |
| if ((parent.style & SWT.VIRTUAL) != 0) cached = true; |
| redraw (index, true, false); |
| } |
| |
| /** |
| * Sets the grayed state of the checkbox for this item. This state change |
| * only applies if the Tree was created with the SWT.CHECK style. |
| * |
| * @param grayed the new grayed state of the checkbox |
| * |
| * @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 setGrayed (boolean grayed) { |
| checkWidget (); |
| if ((parent.style & SWT.CHECK) == 0) return; |
| long /*int*/ hwnd = parent.handle; |
| TVITEM tvItem = new TVITEM (); |
| tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_STATE; |
| tvItem.stateMask = OS.TVIS_STATEIMAGEMASK; |
| tvItem.hItem = handle; |
| OS.SendMessage (hwnd, OS.TVM_GETITEM, 0, tvItem); |
| int state = tvItem.state >> 12; |
| if (grayed) { |
| if (state <= 2) state +=2; |
| } else { |
| if (state > 2) state -=2; |
| } |
| state <<= 12; |
| if (tvItem.state == state) return; |
| if ((parent.style & SWT.VIRTUAL) != 0) cached = true; |
| tvItem.state = state; |
| OS.SendMessage (hwnd, OS.TVM_SETITEM, 0, tvItem); |
| /* |
| * Bug in Windows. When TVM_SETITEM is used to set |
| * the state image of an item inside TVN_GETDISPINFO, |
| * the new state is not redrawn. The fix is to force |
| * a redraw. |
| */ |
| if ((parent.style & SWT.VIRTUAL) != 0) { |
| if (parent.currentItem == this && OS.IsWindowVisible (hwnd)) { |
| RECT rect = new RECT (); |
| if (OS.TreeView_GetItemRect (hwnd, handle, rect, false)) { |
| OS.InvalidateRect (hwnd, rect, true); |
| } |
| } |
| } |
| } |
| |
| /** |
| * Sets the image for multiple columns in the tree. |
| * |
| * @param images the array of new images |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the array of images is null</li> |
| * <li>ERROR_INVALID_ARGUMENT - if one of the images 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 setImage (Image [] images) { |
| checkWidget(); |
| if (images == null) error (SWT.ERROR_NULL_ARGUMENT); |
| for (int i=0; i<images.length; i++) { |
| setImage (i, images [i]); |
| } |
| } |
| |
| /** |
| * Sets the receiver's image at a column. |
| * |
| * @param index the column index |
| * @param image the new image |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the image 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 setImage (int index, Image image) { |
| checkWidget(); |
| if (image != null && image.isDisposed ()) { |
| error(SWT.ERROR_INVALID_ARGUMENT); |
| } |
| Image oldImage = null; |
| if (index == 0) { |
| if (image != null && image.type == SWT.ICON) { |
| if (image.equals (this.image)) return; |
| } |
| oldImage = this.image; |
| super.setImage (image); |
| } |
| int count = Math.max (1, parent.getColumnCount ()); |
| if (0 > index || index > count - 1) return; |
| if (images == null && index != 0) { |
| images = new Image [count]; |
| images [0] = image; |
| } |
| if (images != null) { |
| if (image != null && image.type == SWT.ICON) { |
| if (image.equals (images [index])) return; |
| } |
| oldImage = images [index]; |
| images [index] = image; |
| } |
| if ((parent.style & SWT.VIRTUAL) != 0) cached = true; |
| |
| /* Ensure that the image list is created */ |
| //TODO - items that are not in column zero don't need to be in the image list |
| parent.imageIndex (image, index); |
| |
| if (index == 0) { |
| if ((parent.style & SWT.VIRTUAL) == 0 &&!cached && !parent.painted) { |
| return; |
| } |
| long /*int*/ hwnd = parent.handle; |
| TVITEM tvItem = new TVITEM (); |
| tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_IMAGE | OS.TVIF_SELECTEDIMAGE; |
| tvItem.hItem = handle; |
| tvItem.iImage = tvItem.iSelectedImage = OS.I_IMAGECALLBACK; |
| /* |
| * Bug in Windows. When I_IMAGECALLBACK is used with TVM_SETITEM |
| * to indicate that an image has changed, Windows does not draw |
| * the new image. The fix is to use LPSTR_TEXTCALLBACK to force |
| * Windows to ask for the text, causing Windows to ask for both. |
| */ |
| tvItem.mask |= OS.TVIF_TEXT; |
| tvItem.pszText = OS.LPSTR_TEXTCALLBACK; |
| OS.SendMessage (hwnd, OS.TVM_SETITEM, 0, tvItem); |
| } else { |
| boolean drawText = (image == null && oldImage != null) || (image != null && oldImage == null); |
| redraw (index, drawText, true); |
| } |
| } |
| |
| @Override |
| public void setImage (Image image) { |
| checkWidget (); |
| setImage (0, image); |
| } |
| |
| /** |
| * Sets the number of child 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); |
| long /*int*/ hwnd = parent.handle; |
| long /*int*/ hItem = OS.SendMessage (hwnd, OS.TVM_GETNEXTITEM, OS.TVGN_CHILD, handle); |
| parent.setItemCount (count, handle, hItem); |
| } |
| |
| /** |
| * Sets the text for multiple columns in the tree. |
| * <p> |
| * Note: If control characters like '\n', '\t' etc. are used |
| * in the string, then the behavior is platform dependent. |
| * </p> |
| * @param strings the array of new strings |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the text 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 void setText (String [] strings) { |
| checkWidget(); |
| if (strings == null) error (SWT.ERROR_NULL_ARGUMENT); |
| for (int i=0; i<strings.length; i++) { |
| String string = strings [i]; |
| if (string != null) setText (i, string); |
| } |
| } |
| |
| /** |
| * Sets the receiver's text at a column |
| * <p> |
| * Note: If control characters like '\n', '\t' etc. are used |
| * in the string, then the behavior is platform dependent. |
| * </p> |
| * @param index the column index |
| * @param string the new text |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the text 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 void setText (int index, String string) { |
| checkWidget(); |
| if (string == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (index == 0) { |
| if (string.equals (text)) return; |
| super.setText (string); |
| } |
| int count = Math.max (1, parent.getColumnCount ()); |
| if (0 > index || index > count - 1) return; |
| if (strings == null && index != 0) { |
| strings = new String [count]; |
| strings [0] = text; |
| } |
| if (strings != null) { |
| if (string.equals (strings [index])) return; |
| strings [index] = string; |
| } |
| if ((parent.style & SWT.VIRTUAL) != 0) cached = true; |
| if (index == 0) { |
| if ((parent.style & SWT.VIRTUAL) == 0 && !cached && !parent.painted) { |
| return; |
| } |
| long /*int*/ hwnd = parent.handle; |
| TVITEM tvItem = new TVITEM (); |
| tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_TEXT; |
| tvItem.hItem = handle; |
| tvItem.pszText = OS.LPSTR_TEXTCALLBACK; |
| OS.SendMessage (hwnd, OS.TVM_SETITEM, 0, tvItem); |
| } else { |
| redraw (index, true, false); |
| } |
| } |
| |
| @Override |
| public void setText (String string) { |
| checkWidget(); |
| setText (0, string); |
| } |
| |
| /*public*/ void sort () { |
| checkWidget (); |
| if ((parent.style & SWT.VIRTUAL) != 0) return; |
| parent.sort (handle, false); |
| } |
| |
| } |