| /******************************************************************************* |
| * Copyright (c) 2000, 2012 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.cocoa.*; |
| |
| /** |
| * 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 { |
| Tree parent; |
| TreeItem parentItem; |
| TreeItem[] items; |
| int itemCount; |
| String [] strings; |
| Image [] images; |
| boolean checked, grayed, cached, expanded; |
| Color foreground, background; |
| Color [] cellForeground, cellBackground; |
| Font font; |
| Font [] cellFont; |
| int width = -1; |
| /** |
| * 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 SWTTreeItem handle; |
| |
| /** |
| * 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 (checkNull (parent), null, style, -1, true); |
| } |
| |
| /** |
| * 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 (checkNull (parent), null, style, checkIndex (index), true); |
| } |
| |
| /** |
| * 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, parentItem, style, -1, true); |
| } |
| |
| /** |
| * 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, parentItem, style, checkIndex (index), true); |
| } |
| |
| TreeItem (Tree parent, TreeItem parentItem, int style, int index, boolean create) { |
| super (parent, style); |
| this.parent = parent; |
| this.parentItem = parentItem; |
| if (create) { |
| parent.createItem (this, parentItem, index); |
| } else { |
| handle = (SWTTreeItem) new SWTTreeItem ().alloc ().init (); |
| createJNIRef (); |
| register (); |
| items = new TreeItem[4]; |
| } |
| } |
| |
| static TreeItem checkNull (TreeItem item) { |
| if (item == null) SWT.error (SWT.ERROR_NULL_ARGUMENT); |
| return item; |
| } |
| |
| static Tree checkNull (Tree parent) { |
| if (parent == null) SWT.error (SWT.ERROR_NULL_ARGUMENT); |
| return parent; |
| } |
| |
| static int checkIndex (int index) { |
| if (index < 0) SWT.error (SWT.ERROR_INVALID_RANGE); |
| return index; |
| } |
| |
| int calculateWidth (int index, GC gc) { |
| if (index == 0 && width != -1) return width; |
| Font font = null; |
| if (cellFont != null) font = cellFont[index]; |
| if (font == null) font = this.font; |
| if (font == null) font = parent.font; |
| if (font == null) font = parent.defaultFont(); |
| String text = index == 0 ? this.text : (strings == null ? "" : strings [index]); |
| Image image = index == 0 ? this.image : (images == null ? null : images [index]); |
| NSCell cell = parent.dataCell; |
| if (font.extraTraits != 0) { |
| NSAttributedString attribStr = parent.createString(text, font, null, 0, false, true, false); |
| cell.setAttributedStringValue(attribStr); |
| attribStr.release(); |
| } else { |
| cell.setFont (font.handle); |
| NSString str = (NSString) new NSString().alloc(); |
| str = str.initWithString(text != null ? text : ""); |
| cell.setTitle (str); |
| str.release(); |
| } |
| |
| /* This code is inlined for performance */ |
| objc_super super_struct = new objc_super(); |
| super_struct.receiver = cell.id; |
| super_struct.super_class = OS.objc_msgSend(cell.id, OS.sel_superclass); |
| NSSize size = new NSSize(); |
| OS.objc_msgSendSuper_stret(size, super_struct, OS.sel_cellSize); |
| if (image != null) size.width += parent.imageBounds.width + Tree.IMAGE_GAP; |
| // cell.setImage (image != null ? image.handle : null); |
| // NSSize size = cell.cellSize (); |
| |
| int width = (int)Math.ceil (size.width); |
| boolean sendMeasure = true; |
| if ((parent.style & SWT.VIRTUAL) != 0) { |
| sendMeasure = cached; |
| } |
| if (sendMeasure && parent.hooks (SWT.MeasureItem)) { |
| gc.setFont (font); |
| Event event = new Event (); |
| event.item = this; |
| event.index = index; |
| event.gc = gc; |
| NSTableView widget = (NSTableView)parent.view; |
| int height = (int)widget.rowHeight (); |
| event.width = width; |
| event.height = height; |
| event.detail = (cell.isHighlighted() && ((style & SWT.HIDE_SELECTION) == 0 || parent.hasFocus())) ? SWT.SELECTED : 0; |
| parent.sendEvent (SWT.MeasureItem, event); |
| if (height < event.height) { |
| widget.setRowHeight (event.height); |
| widget.setNeedsDisplay (true); |
| } |
| width = event.width; |
| } |
| if (index == 0) { |
| NSOutlineView outlineView = (NSOutlineView)parent.view; |
| width += outlineView.indentationPerLevel () * (1 + outlineView.levelForItem (handle)); |
| this.width = width; |
| } |
| return width; |
| } |
| |
| protected void checkSubclass () { |
| if (!isValidSubclass ()) error (SWT.ERROR_INVALID_SUBCLASS); |
| } |
| |
| void clear () { |
| cached = false; |
| text = ""; |
| image = null; |
| strings = null; |
| images = null; |
| checked = grayed = false; |
| foreground = background = null; |
| cellForeground = cellBackground = null; |
| font = null; |
| cellFont = null; |
| width = -1; |
| } |
| |
| /** |
| * 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 (); |
| int count = getItemCount (); |
| if (index < 0 || index >= count) |
| error (SWT.ERROR_INVALID_RANGE); |
| parent.clear (this, index, 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 (); |
| parent.clearAll (this, all); |
| } |
| |
| NSObject createString(int index) { |
| String text = index == 0 ? this.text : (strings == null ? "" : strings [index]); |
| return NSString.stringWith(text != null ? text : ""); |
| } |
| |
| void dealloc (long /*int*/ id, long /*int*/ sel) { |
| OS.object_setInstanceVariable(id, Display.SWT_OBJECT, 0); |
| super.destroyJNIRef(); |
| super.dealloc(id, sel); |
| } |
| |
| void deregister () { |
| super.deregister (); |
| //This is done in #dealloc |
| // display.removeWidget (handle); |
| } |
| |
| void destroyJNIRef () { |
| //Do nothing - see #dealloc |
| } |
| |
| void destroyWidget () { |
| parent.destroyItem (this); |
| releaseHandle (); |
| } |
| |
| /** |
| * 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)) error (SWT.ERROR_WIDGET_DISPOSED); |
| return background != null ? background : parent.getBackground (); |
| } |
| |
| /** |
| * 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)) error (SWT.ERROR_WIDGET_DISPOSED); |
| int count = Math.max (1, parent.columnCount); |
| if (0 > index || index > count -1) return getBackground (); |
| if (cellBackground == null || cellBackground [index] == null) return getBackground (); |
| return cellBackground [index]; |
| } |
| |
| /** |
| * 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 (); |
| if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED); |
| parent.checkItems (); |
| |
| NSOutlineView widget = (NSOutlineView) parent.view; |
| int rowIndex = (int)/*64*/widget.rowForItem (handle); |
| if (rowIndex == -1) return new Rectangle (0, 0, 0, 0); |
| |
| NSTableColumn column = parent.columnCount == 0 ? parent.firstColumn : parent.columns [0].nsColumn; |
| int columnIndex = parent.indexOf (column); |
| NSRect titleRect = widget.frameOfCellAtColumn (columnIndex, rowIndex); |
| if (image != null) { |
| titleRect.x += parent.imageBounds.width + Tree.IMAGE_GAP; |
| } |
| Font font = null; |
| if (cellFont != null) font = cellFont[columnIndex]; |
| if (font == null) font = this.font; |
| if (font == null) font = parent.font; |
| if (font == null) font = parent.defaultFont (); |
| NSCell cell = parent.dataCell; |
| cell.setImage (null); |
| if (font.extraTraits != 0) { |
| NSAttributedString attribStr = parent.createString (text, font, null, 0, false, true, false); |
| cell.setAttributedStringValue (attribStr); |
| attribStr.release (); |
| } else { |
| cell.setFont (font.handle); |
| NSString str = (NSString) new NSString().alloc(); |
| str = str.initWithString(text); |
| cell.setTitle (str); |
| str.release(); |
| } |
| // Inlined for performance. Also prevents a NPE or potential loop, because cellSize() will |
| // eventually send another MeasureItem event. |
| objc_super super_struct = new objc_super(); |
| super_struct.receiver = cell.id; |
| super_struct.super_class = OS.objc_msgSend(cell.id, OS.sel_superclass); |
| NSSize size = new NSSize(); |
| OS.objc_msgSendSuper_stret(size, super_struct, OS.sel_cellSize); |
| // NSSize size = cell.cellSize (); |
| NSRect columnRect = widget.rectOfColumn (columnIndex); |
| size.width = Math.min (size.width, columnRect.width - (titleRect.x - columnRect.x)); |
| return new Rectangle ((int)titleRect.x, (int)titleRect.y, (int)Math.ceil (size.width), (int)Math.ceil (titleRect.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 (); |
| if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED); |
| if (!(0 <= index && index < Math.max (1, parent.columnCount))) return new Rectangle (0, 0, 0, 0); |
| |
| parent.checkItems (); |
| NSOutlineView outlineView = (NSOutlineView) parent.view; |
| if (parent.columnCount == 0) { |
| index = (parent.style & SWT.CHECK) != 0 ? 1 : 0; |
| } else { |
| TreeColumn column = parent.getColumn (index); |
| index = parent.indexOf (column.nsColumn); |
| } |
| NSRect rect = outlineView.frameOfCellAtColumn (index, outlineView.rowForItem (handle)); |
| return new Rectangle ((int) rect.x, (int) rect.y, (int) rect.width, (int) rect.height); |
| } |
| |
| /** |
| * 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)) error (SWT.ERROR_WIDGET_DISPOSED); |
| if ((parent.style & SWT.CHECK) == 0) return false; |
| return checked; |
| } |
| |
| /** |
| * 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 (); |
| return expanded; |
| } |
| |
| /** |
| * 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)) 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)) error (SWT.ERROR_WIDGET_DISPOSED); |
| int count = Math.max (1, parent.columnCount); |
| 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)) error (SWT.ERROR_WIDGET_DISPOSED); |
| return foreground != null ? foreground : parent.getForeground (); |
| } |
| |
| /** |
| * |
| * 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)) error (SWT.ERROR_WIDGET_DISPOSED); |
| int count = Math.max (1, parent.columnCount); |
| if (0 > index || index > count -1) return getForeground (); |
| if (cellForeground == null || cellForeground [index] == null) return getForeground (); |
| return cellForeground [index]; |
| } |
| |
| /** |
| * 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)) error (SWT.ERROR_WIDGET_DISPOSED); |
| if ((parent.style & SWT.CHECK) == 0) return false; |
| return grayed; |
| } |
| |
| public Image getImage () { |
| checkWidget (); |
| if (!parent.checkData (this)) 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)) 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 (); |
| if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED); |
| if (!(0 <= index && index < Math.max (1, parent.columnCount))) return new Rectangle (0, 0, 0, 0); |
| |
| parent.checkItems (); |
| NSOutlineView outlineView = (NSOutlineView) parent.view; |
| Image image = index == 0 ? this.image : (images != null) ? images [index] : null; |
| if (parent.columnCount == 0) { |
| index = (parent.style & SWT.CHECK) != 0 ? 1 : 0; |
| } else { |
| TreeColumn column = parent.getColumn (index); |
| index = parent.indexOf (column.nsColumn); |
| } |
| NSRect rect = outlineView.frameOfCellAtColumn (index, outlineView.rowForItem (handle)); |
| rect.x += Tree.IMAGE_GAP; |
| if (image != null) { |
| rect.width = parent.imageBounds.width; |
| } else { |
| rect.width = 0; |
| } |
| return new Rectangle((int) rect.x, (int) rect.y, (int) rect.width, (int) rect.height); |
| } |
| |
| /** |
| * 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)) error (SWT.ERROR_WIDGET_DISPOSED); |
| if (index >= itemCount) error (SWT.ERROR_INVALID_RANGE); |
| return parent._getItem (this, index, true); |
| } |
| |
| /** |
| * 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)) error (SWT.ERROR_WIDGET_DISPOSED); |
| return itemCount; |
| } |
| |
| /** |
| * 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)) error (SWT.ERROR_WIDGET_DISPOSED); |
| TreeItem [] result = new TreeItem [itemCount]; |
| for (int i=0; i<itemCount; i++) { |
| result [i] = parent._getItem (this, i, true); |
| } |
| return result; |
| } |
| |
| String getNameText () { |
| if ((parent.style & SWT.VIRTUAL) != 0) { |
| if (!cached) return "*virtual*"; //$NON-NLS-1$ |
| } |
| return super.getNameText (); |
| } |
| |
| /** |
| * 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 (); |
| return parentItem; |
| } |
| |
| public String getText () { |
| checkWidget (); |
| if (!parent.checkData (this)) 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)) 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 (); |
| if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED); |
| if (!(0 <= index && index < Math.max (1, parent.columnCount))) return new Rectangle (0, 0, 0, 0); |
| |
| parent.checkItems (); |
| NSOutlineView outlineView = (NSOutlineView) parent.view; |
| Image image = index == 0 ? this.image : (images != null) ? images [index] : null; |
| if (parent.columnCount == 0) { |
| index = (parent.style & SWT.CHECK) != 0 ? 1 : 0; |
| } else { |
| TreeColumn column = parent.getColumn (index); |
| index = parent.indexOf (column.nsColumn); |
| } |
| NSRect rect = outlineView.frameOfCellAtColumn (index, outlineView.rowForItem (handle)); |
| rect.x += Tree.TEXT_GAP; |
| rect.width -= Tree.TEXT_GAP; |
| if (image != null) { |
| int offset = parent.imageBounds.width + Tree.IMAGE_GAP; |
| rect.x += offset; |
| rect.width -= offset; |
| } |
| return new Rectangle((int) rect.x, (int) rect.y, (int) rect.width, (int) rect.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); |
| if (item.parentItem != this) return -1; |
| for (int i = 0; i < itemCount; i++) { |
| if (item == items [i]) return i; |
| } |
| return -1; |
| } |
| |
| boolean isDrawing () { |
| return getDrawing() && parent.isDrawing (); |
| } |
| |
| void redraw (int columnIndex) { |
| if (parent.ignoreRedraw || !isDrawing()) return; |
| /* redraw the full item if columnIndex == -1 */ |
| NSOutlineView outlineView = (NSOutlineView) parent.view; |
| NSRect rect; |
| if (columnIndex == -1 || parent.hooks (SWT.MeasureItem) || parent.hooks (SWT.EraseItem) || parent.hooks (SWT.PaintItem)) { |
| rect = outlineView.rectOfRow (outlineView.rowForItem (handle)); |
| } else { |
| int index; |
| if (parent.columnCount == 0) { |
| index = (parent.style & SWT.CHECK) != 0 ? 1 : 0; |
| } else { |
| if (0 <= columnIndex && columnIndex < parent.columnCount) { |
| index = parent.indexOf (parent.columns[columnIndex].nsColumn); |
| } else { |
| return; |
| } |
| } |
| rect = outlineView.frameOfCellAtColumn (index, outlineView.rowForItem (handle)); |
| } |
| outlineView.setNeedsDisplayInRect (rect); |
| } |
| |
| void register () { |
| super.register (); |
| display.addWidget (handle, this); |
| } |
| |
| void release(boolean destroy) { |
| TreeItem[] selectedItems = null; |
| Tree parent = this.parent; |
| if (destroy) { |
| if (getDrawing()) selectedItems = parent.getSelection (); |
| } |
| super.release(destroy); |
| if (selectedItems != null) parent.selectItems (selectedItems, true); |
| } |
| |
| void releaseChildren (boolean destroy) { |
| for (int i=0; i<items.length; i++) { |
| TreeItem item = items [i]; |
| if (item != null && !item.isDisposed ()) { |
| item.release (false); |
| } |
| } |
| items = null; |
| itemCount = 0; |
| super.releaseChildren (destroy); |
| } |
| |
| void releaseHandle () { |
| super.releaseHandle (); |
| if (handle != null) handle.autorelease (); |
| handle = null; |
| parentItem = null; |
| parent = null; |
| } |
| |
| void releaseWidget () { |
| super.releaseWidget (); |
| strings = null; |
| images = null; |
| background = foreground = null; |
| font = 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 (); |
| parent.setItemCount (this, 0); |
| } |
| |
| void sendExpand (boolean expand, boolean recurse) { |
| if (itemCount == 0) return; |
| if (expanded != expand) { |
| Event event = new Event (); |
| event.item = this; |
| parent.sendEvent (expand ? SWT.Expand : SWT.Collapse, event); |
| if (isDisposed ()) return; |
| expanded = expand; |
| } |
| if (recurse) { |
| for (int i = 0; i < itemCount; i++) { |
| if (items[i] != null) items[i].sendExpand (expand, recurse); |
| } |
| } |
| } |
| |
| /** |
| * 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); |
| } |
| Color oldColor = background; |
| if (oldColor == color) return; |
| background = color; |
| if (oldColor != null && oldColor.equals (color)) return; |
| cached = true; |
| redraw (-1); |
| } |
| |
| /** |
| * 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.columnCount); |
| if (0 > index || index > count - 1) return; |
| if (cellBackground == null) { |
| if (color == null) return; |
| cellBackground = new Color [count]; |
| } |
| Color oldColor = cellBackground [index]; |
| if (oldColor == color) return; |
| cellBackground [index] = color; |
| if (oldColor != null && oldColor.equals (color)) return; |
| cached = true; |
| redraw (index); |
| } |
| |
| /** |
| * 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; |
| if (this.checked == checked) return; |
| this.checked = checked; |
| cached = true; |
| redraw (-1); |
| } |
| |
| /** |
| * 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 */ |
| if (itemCount == 0 || expanded == getExpanded ()) return; |
| |
| parent.checkItems (); |
| parent.ignoreExpand = true; |
| this.expanded = expanded; |
| if (expanded) { |
| ((NSOutlineView) parent.view).expandItem (handle); |
| } else { |
| ((NSOutlineView) parent.view).collapseItem (handle); |
| } |
| parent.ignoreExpand = false; |
| cached = true; |
| if (!expanded) { |
| parent.setScrollWidth (); |
| } |
| } |
| |
| /** |
| * 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; |
| width = -1; |
| cached = true; |
| redraw (-1); |
| } |
| |
| /** |
| * 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.columnCount); |
| 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; |
| width = -1; |
| cached = true; |
| redraw (index); |
| } |
| |
| /** |
| * 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); |
| } |
| Color oldColor = foreground; |
| if (oldColor == color) return; |
| foreground = color; |
| if (oldColor != null && oldColor.equals (color)) return; |
| cached = true; |
| redraw (-1); |
| } |
| |
| /** |
| * 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.columnCount); |
| if (0 > index || index > count - 1) return; |
| if (cellForeground == null) { |
| if (color == null) return; |
| cellForeground = new Color [count]; |
| } |
| Color oldColor = cellForeground [index]; |
| if (oldColor == color) return; |
| cellForeground [index] = color; |
| if (oldColor != null && oldColor.equals (color)) return; |
| cached = true; |
| redraw (index); |
| } |
| |
| /** |
| * 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; |
| if (this.grayed == grayed) return; |
| this.grayed = grayed; |
| cached = true; |
| redraw (-1); |
| } |
| |
| /** |
| * 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); |
| } |
| if (parent.imageBounds == null && image != null) { |
| parent.setItemHeight (image, null, false); |
| } |
| if (index == 0) { |
| if (image != null && image.type == SWT.ICON) { |
| if (image.equals (this.image)) return; |
| } |
| width = -1; |
| super.setImage (image); |
| } |
| int count = Math.max (1, parent.columnCount); |
| if (0 <= index && index < count) { |
| if (images == null) images = new Image [count]; |
| if (image != null && image.type == SWT.ICON) { |
| if (image.equals (images [index])) return; |
| } |
| images [index] = image; |
| } |
| cached = true; |
| if (index == 0) parent.setScrollWidth (this); |
| if (0 <= index && index < count) redraw (index); |
| } |
| |
| 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); |
| parent.setItemCount (this, count); |
| } |
| |
| /** |
| * Sets the text for multiple columns in the tree. |
| * |
| * @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 |
| * |
| * @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; |
| width = -1; |
| super.setText (string); |
| } |
| int count = Math.max (1, parent.columnCount); |
| if (0 <= index && index < count) { |
| if (strings == null) strings = new String [count]; |
| if (string.equals (strings [index])) return; |
| strings [index] = string; |
| } |
| cached = true; |
| if (index == 0) parent.setScrollWidth (this); |
| if (0 <= index && index < count) redraw (index); |
| } |
| |
| public void setText (String string) { |
| checkWidget (); |
| setText (0, string); |
| } |
| |
| void updateExpanded () { |
| if (itemCount == 0) return; |
| NSOutlineView outlineView = (NSOutlineView)parent.view; |
| if (expanded != outlineView.isItemExpanded (handle)) { |
| if (expanded) { |
| outlineView.expandItem (handle); |
| } else { |
| outlineView.collapseItem (handle); |
| } |
| } |
| for (int i = 0; i < itemCount; i++) { |
| if (items[i] != null) items[i].updateExpanded (); |
| } |
| } |
| } |