| /******************************************************************************* |
| * Copyright (c) 2000, 2008 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.swt.widgets; |
| |
| import org.eclipse.swt.internal.wpf.*; |
| import org.eclipse.swt.*; |
| import org.eclipse.swt.graphics.*; |
| |
| /** |
| * 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; |
| int contentHandle; |
| int itemCount; |
| Image [] images; |
| String [] strings; |
| Color [] cellBackground, cellForeground; |
| Font [] cellFont; |
| boolean checked, grayed, cached, ignoreNotify; |
| Color background, foreground; |
| Font font; |
| /** |
| * 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, parent.itemCount, 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 (checkNull (parent), null, style, 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, parentItem, style, parentItem.itemCount, 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, parentItem, style, index, 0); |
| } |
| |
| TreeItem (Tree parent, TreeItem parentItem, int style, int index, int handle) { |
| super (parent, style); |
| this.parent = parent; |
| this.handle = handle; |
| if (handle == 0) { |
| parent.createItem (this, parentItem, index); |
| } else { |
| createWidget (); |
| } |
| } |
| |
| static Tree checkNull (Tree tree) { |
| if (tree == null) SWT.error (SWT.ERROR_NULL_ARGUMENT); |
| return tree; |
| } |
| |
| static TreeItem checkNull (TreeItem item) { |
| if (item == null) SWT.error (SWT.ERROR_NULL_ARGUMENT); |
| return item; |
| } |
| |
| protected void checkSubclass () { |
| if (!isValidSubclass ()) error (SWT.ERROR_INVALID_SUBCLASS); |
| } |
| |
| void clear () { |
| strings = null; |
| images = null; |
| checked = grayed = false; |
| updateCheck (); |
| setForeground (null); |
| setBackground (null); |
| setFont (null); |
| int columns = parent.columnCount == 0 ? 1 : parent.columnCount; |
| for (int i = 0; i < columns; i++) { |
| updateText (i); |
| updateImage (i); |
| updateBackground (i); |
| updateForeground (i); |
| updateFont (i); |
| } |
| if ((parent.style & SWT.VIRTUAL) != 0) cached = false; |
| int part = findPart (0, Tree.RENDER_PANEL_NAME); |
| if (part != 0) OS.UIElement_InvalidateVisual (part); |
| OS.GCHandle_Free (part); |
| } |
| |
| /** |
| * 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 (); |
| if (index < 0 || index >= itemCount) SWT.error (SWT.ERROR_INVALID_RANGE); |
| parent.clear (handle, 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); |
| } |
| |
| void columnAdded (int index) { |
| if (parent.columnCount == 0) { |
| int headerTemplate = OS.HeaderedItemsControl_HeaderTemplateProperty (); |
| OS.DependencyObject_ClearValue (handle, headerTemplate); |
| OS.GCHandle_Free (headerTemplate); |
| int header = OS.gcnew_SWTTreeViewRowPresenter (parent.handle); |
| if (header == 0) error (SWT.ERROR_NO_HANDLES); |
| OS.GridViewRowPresenterBase_Columns (header, parent.gvColumns); |
| OS.HeaderedItemsControl_Header (handle, header); |
| OS.GCHandle_Free (header); |
| } else { |
| int newLength = parent.columnCount + 1; |
| if (strings != null) { |
| String [] temp = new String [newLength]; |
| System.arraycopy (strings, 0, temp, 0, index); |
| System.arraycopy (strings, index, temp, index + 1, parent.columnCount - index); |
| strings = temp; |
| } |
| if (images != null) { |
| Image [] temp = new Image [newLength]; |
| System.arraycopy (images, 0, temp, 0, index); |
| System.arraycopy (images, index, temp, index + 1, parent.columnCount - index); |
| images = temp; |
| } |
| if (cellBackground != null) { |
| Color [] temp = new Color [newLength]; |
| System.arraycopy (cellBackground, 0, temp, 0, index); |
| System.arraycopy (cellBackground, index, temp, index + 1, parent.columnCount - index); |
| cellBackground = temp; |
| } |
| if (cellForeground != null) { |
| Color [] temp = new Color [newLength]; |
| System.arraycopy (cellForeground, 0, temp, 0, index); |
| System.arraycopy (cellForeground, index, temp, index + 1, parent.columnCount - index); |
| cellForeground = temp; |
| } |
| if (cellFont != null) { |
| Font [] temp = new Font [newLength]; |
| System.arraycopy (cellFont, 0, temp, 0, index); |
| System.arraycopy (cellFont, index, temp, index + 1, parent.columnCount - index); |
| cellFont = temp; |
| } |
| } |
| int items = OS.ItemsControl_Items (handle); |
| for (int i=0; i<itemCount; i++) { |
| TreeItem item = parent.getItem (items, i, false); |
| if (item != null) { |
| item.columnAdded (index); |
| } |
| } |
| OS.GCHandle_Free (items); |
| } |
| |
| void columnRemoved(int index) { |
| if (parent.columnCount == 0) { |
| OS.TreeViewItem_HeaderTemplate (handle, parent.headerTemplate); |
| } else { |
| if (strings == null) { |
| String [] temp = new String [parent.columnCount]; |
| System.arraycopy (strings, 0, temp, 0, index); |
| System.arraycopy (strings, index + 1, temp, index, parent.columnCount - index); |
| strings = temp; |
| } |
| if (images != null) { |
| Image [] temp = new Image [parent.columnCount]; |
| System.arraycopy (images, 0, temp, 0, index); |
| System.arraycopy (images, index + 1, temp, index, parent.columnCount - index); |
| images = temp; |
| } |
| if (cellBackground != null) { |
| Color [] temp = new Color [parent.columnCount]; |
| System.arraycopy (cellBackground, 0, temp, 0, index); |
| System.arraycopy (cellBackground, index + 1, temp, index, parent.columnCount - index); |
| cellBackground = temp; |
| } |
| if (cellForeground != null) { |
| Color [] temp = new Color [parent.columnCount]; |
| System.arraycopy (cellForeground, 0, temp, 0, index); |
| System.arraycopy (cellForeground, index + 1, temp, index, parent.columnCount - index); |
| cellForeground = temp; |
| } |
| if (cellFont != null) { |
| Font [] temp = new Font [parent.columnCount]; |
| System.arraycopy (cellFont, 0, temp, 0, index); |
| System.arraycopy (cellFont, index + 1, temp, index, parent.columnCount - index); |
| cellFont = temp; |
| } |
| } |
| int items = OS.ItemsControl_Items (handle); |
| for (int i=0; i<itemCount; i++) { |
| TreeItem item = parent.getItem (items, i, false); |
| if (item != null) { |
| item.columnRemoved (index); |
| } |
| } |
| OS.GCHandle_Free (items); |
| } |
| |
| void createHandle () { |
| if (handle == 0) { |
| handle = OS.gcnew_TreeViewItem (); |
| if (handle == 0) error (SWT.ERROR_NO_HANDLES); |
| if (parent.columnCount != 0) { |
| int headerHandle = OS.gcnew_SWTTreeViewRowPresenter (parent.handle); |
| if (headerHandle == 0) error (SWT.ERROR_NO_HANDLES); |
| OS.GridViewRowPresenterBase_Columns (headerHandle, parent.gvColumns); |
| OS.HeaderedItemsControl_Header (handle, headerHandle); |
| OS.GCHandle_Free (headerHandle); |
| } else { |
| OS.TreeViewItem_HeaderTemplate (handle, parent.headerTemplate); |
| } |
| } |
| OS.Control_HorizontalContentAlignment (handle, OS.HorizontalAlignment_Stretch); |
| OS.Control_VerticalContentAlignment (handle, OS.VerticalAlignment_Stretch); |
| updateCheck (); |
| fixStyle (); |
| } |
| |
| void deregister () { |
| display.removeWidget (handle); |
| } |
| |
| void destroyWidget () { |
| parent.destroyItem (this); |
| releaseHandle (); |
| } |
| |
| int findContentPresenter () { |
| updateLayout (handle); |
| int controlTemplate = OS.Control_Template (handle); |
| int headerName = createDotNetString ("PART_Header", false); |
| int contentPresenter = OS.FrameworkTemplate_FindName (controlTemplate, headerName, handle); |
| OS.GCHandle_Free (headerName); |
| OS.GCHandle_Free (controlTemplate); |
| return contentPresenter; |
| } |
| |
| int findPart (int column, String partName) { |
| if (contentHandle == 0) updateLayout (handle); |
| if (contentHandle == 0) return 0; |
| int name = createDotNetString (partName, false); |
| int result = 0; |
| if (parent.columnCount == 0) { |
| int template = OS.TreeViewItem_HeaderTemplate (handle); |
| result = OS.FrameworkTemplate_FindName (template, name, contentHandle); |
| OS.GCHandle_Free (template); |
| } else { |
| int rowPresenter = OS.HeaderedItemsControl_Header (handle); |
| int contentPresenter = OS.VisualTreeHelper_GetChild (rowPresenter, column); |
| OS.GCHandle_Free (rowPresenter); |
| int columnHandle = OS.GridViewColumnCollection_default (parent.gvColumns, column); |
| int template = OS.GridViewColumn_CellTemplate (columnHandle); |
| OS.GCHandle_Free (columnHandle); |
| result = OS.FrameworkTemplate_FindName (template, name, contentPresenter); |
| OS.GCHandle_Free (contentPresenter); |
| OS.GCHandle_Free (template); |
| } |
| OS.GCHandle_Free (name); |
| return result; |
| } |
| |
| void fixStyle () { |
| int itemStyle = OS.gcnew_Style (); |
| if (itemStyle == 0) error (SWT.ERROR_NO_HANDLES); |
| int setters = OS.Style_Setters (itemStyle); |
| int source = OS.gcnew_RelativeSource (OS.RelativeSourceMode_FindAncestor); |
| int treeViewType = OS.TreeView_typeid (); |
| |
| /* clear the templated foreground color */ |
| int property = OS.Control_ForegroundProperty (); |
| int propertyPath = createDotNetString ("Foreground", false); |
| int binding = OS.gcnew_Binding (propertyPath); |
| if (binding == 0) error (SWT.ERROR_NO_HANDLES); |
| OS.GCHandle_Free (propertyPath); |
| OS.RelativeSource_AncestorType (source, treeViewType); |
| OS.Binding_RelativeSource (binding, source); |
| int setter = OS.gcnew_Setter (property, binding); |
| OS.GCHandle_Free (property); |
| OS.GCHandle_Free (binding); |
| OS.SetterBaseCollection_Add (setters, setter); |
| OS.GCHandle_Free (setter); |
| |
| /* bind font properties to tree instead of parent item */ |
| property = OS.Control_FontSizeProperty (); |
| propertyPath = createDotNetString ("FontSize", false); |
| binding = OS.gcnew_Binding (propertyPath); |
| if (binding == 0) error (SWT.ERROR_NO_HANDLES); |
| OS.GCHandle_Free (propertyPath); |
| OS.Binding_RelativeSource (binding, source); |
| setter = OS.gcnew_Setter (property, binding); |
| OS.GCHandle_Free (property); |
| OS.GCHandle_Free (binding); |
| OS.SetterBaseCollection_Add (setters, setter); |
| OS.GCHandle_Free (setter); |
| |
| property = OS.TextBlock_FontFamilyProperty (); |
| propertyPath = createDotNetString ("FontFamily", false); |
| binding = OS.gcnew_Binding (propertyPath); |
| if (binding == 0) error (SWT.ERROR_NO_HANDLES); |
| OS.GCHandle_Free (propertyPath); |
| OS.Binding_RelativeSource (binding, source); |
| setter = OS.gcnew_Setter (property, binding); |
| OS.GCHandle_Free (property); |
| OS.GCHandle_Free (binding); |
| OS.SetterBaseCollection_Add (setters, setter); |
| OS.GCHandle_Free (setter); |
| |
| property = OS.TextBlock_FontStretchProperty (); |
| propertyPath = createDotNetString ("FontStretch", false); |
| binding = OS.gcnew_Binding (propertyPath); |
| if (binding == 0) error (SWT.ERROR_NO_HANDLES); |
| OS.GCHandle_Free (propertyPath); |
| OS.Binding_RelativeSource (binding, source); |
| setter = OS.gcnew_Setter (property, binding); |
| OS.GCHandle_Free (property); |
| OS.GCHandle_Free (binding); |
| OS.SetterBaseCollection_Add (setters, setter); |
| OS.GCHandle_Free (setter); |
| |
| property = OS.TextBlock_FontWeightProperty (); |
| propertyPath = createDotNetString ("FontWeight", false); |
| binding = OS.gcnew_Binding (propertyPath); |
| if (binding == 0) error (SWT.ERROR_NO_HANDLES); |
| OS.GCHandle_Free (propertyPath); |
| OS.Binding_RelativeSource (binding, source); |
| setter = OS.gcnew_Setter (property, binding); |
| OS.GCHandle_Free (property); |
| OS.GCHandle_Free (binding); |
| OS.SetterBaseCollection_Add (setters, setter); |
| OS.GCHandle_Free (setter); |
| |
| property = OS.TextBlock_FontStyleProperty (); |
| propertyPath = createDotNetString ("FontStyle", false); |
| binding = OS.gcnew_Binding (propertyPath); |
| if (binding == 0) error (SWT.ERROR_NO_HANDLES); |
| OS.GCHandle_Free (propertyPath); |
| OS.Binding_RelativeSource (binding, source); |
| setter = OS.gcnew_Setter (property, binding); |
| OS.GCHandle_Free (property); |
| OS.GCHandle_Free (binding); |
| OS.SetterBaseCollection_Add (setters, setter); |
| OS.GCHandle_Free (setter); |
| |
| OS.FrameworkElement_Style (handle, itemStyle); |
| OS.GCHandle_Free (treeViewType); |
| OS.GCHandle_Free (source); |
| OS.GCHandle_Free (setters); |
| OS.GCHandle_Free (itemStyle); |
| } |
| /** |
| * 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 receiver's size and location |
| * relative to its parent. |
| * |
| * @return the receiver's bounding 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> |
| */ |
| public Rectangle getBounds () { |
| checkWidget (); |
| return getTextBounds (0); |
| } |
| |
| /** |
| * 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 (index != 0 && !(0 <= index && index < parent.columnCount)) return new Rectangle (0, 0, 0, 0); |
| if (!OS.UIElement_IsVisible (handle)) return new Rectangle (0, 0, 0, 0); |
| updateLayout (handle); |
| int point = OS.gcnew_Point (0, 0); |
| int stackPanel = findPart (index, Tree.CONTENTPANEL_PART_NAME); |
| int location = OS.UIElement_TranslatePoint (stackPanel, point, parent.handle); |
| int x = (int) OS.Point_X (location); |
| int y = (int) OS.Point_Y (location); |
| int width = (int) OS.FrameworkElement_ActualWidth (stackPanel); |
| int height = (int) OS.FrameworkElement_ActualHeight (stackPanel); |
| OS.GCHandle_Free (point); |
| OS.GCHandle_Free (location); |
| OS.GCHandle_Free (stackPanel); |
| return new Rectangle (x, y, width, 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 OS.TreeViewItem_IsExpanded (handle); |
| } |
| |
| /** |
| * 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 false; |
| } |
| |
| /** |
| * 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 || index >= itemCount) error (SWT.ERROR_INVALID_RANGE); |
| if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED); |
| int items = OS.ItemsControl_Items (handle); |
| TreeItem item = parent.getItem (items, index, true); |
| OS.GCHandle_Free (items); |
| return item; |
| } |
| |
| /** |
| * 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); |
| int items = OS.ItemsControl_Items (handle); |
| TreeItem [] result = new TreeItem [itemCount]; |
| for (int i = 0; i < result.length; i++) { |
| result [i] = parent.getItem (items, i, true); |
| } |
| OS.GCHandle_Free (items); |
| return result; |
| } |
| |
| public Image getImage () { |
| checkWidget (); |
| return getImage (0); |
| } |
| |
| /** |
| * 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 (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 (index != 0 && !(0 <= index && index < parent.columnCount)) return new Rectangle (0, 0, 0, 0); |
| int parentHandle = parent.topHandle (); |
| int part = findPart (index, Tree.IMAGE_PART_NAME); |
| int point = OS.gcnew_Point (0, 0); |
| if (point == 0) error (SWT.ERROR_NO_HANDLES); |
| int location = OS.UIElement_TranslatePoint (part, point, parentHandle); |
| int x = (int) OS.Point_X (location); |
| int y = (int) OS.Point_Y (location); |
| OS.GCHandle_Free (point); |
| OS.GCHandle_Free (location); |
| int width = (int) OS.FrameworkElement_ActualWidth (part); |
| int height = (int) OS.FrameworkElement_ActualHeight (part); |
| OS.GCHandle_Free (part); |
| return new Rectangle (x, y, 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 (); |
| int parentItem = OS.FrameworkElement_Parent (handle); |
| TreeItem result = null; |
| if (!OS.Object_Equals (parentItem, parent.handle)) { |
| result = (TreeItem) display.getWidget (parentItem); |
| } |
| OS.GCHandle_Free (parentItem); |
| return result; |
| } |
| |
| /** |
| * 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 (index != 0 && !(0 <= index && index < parent.columnCount)) return new Rectangle (0, 0, 0, 0); |
| int parentHandle = parent.topHandle (); |
| int point = OS.gcnew_Point (0, 0); |
| if (point == 0) error (SWT.ERROR_NO_HANDLES); |
| int textBlock = findPart (index, Tree.TEXT_PART_NAME); |
| int renderPanel = findPart (index, Table.RENDER_PANEL_NAME); |
| Rectangle result = new Rectangle (0, 0, 0, 0); |
| if (textBlock != 0 && renderPanel != 0) { |
| int location = OS.UIElement_TranslatePoint (textBlock, point, parentHandle); |
| int x = (int) OS.Point_X (location); |
| int y = (int) OS.Point_Y (location); |
| OS.GCHandle_Free (location); |
| double textWidth = OS.FrameworkElement_ActualWidth (textBlock); |
| int panelLocation = OS.UIElement_TranslatePoint (textBlock, point, renderPanel); |
| double visibleWidth = Math.max (0, OS.FrameworkElement_ActualWidth (renderPanel) - OS.Point_X (panelLocation)); |
| OS.GCHandle_Free (panelLocation); |
| int width = (int) Math.min (textWidth, visibleWidth); |
| int height = (int) OS.FrameworkElement_ActualHeight (textBlock); |
| result = new Rectangle (x, y, width, height); |
| } |
| OS.GCHandle_Free (point); |
| if (textBlock != 0) OS.GCHandle_Free (textBlock); |
| if (renderPanel != 0) OS.GCHandle_Free (renderPanel); |
| return result; |
| } |
| |
| public String getText () { |
| checkWidget (); |
| return getText (0); |
| } |
| |
| /** |
| * 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 (strings != null && 0 <= index && index < strings.length) { |
| return strings [index]!= null ? strings [index] : ""; |
| } |
| return ""; |
| } |
| |
| Control getWidgetControl () { |
| return parent; |
| } |
| |
| /** |
| * 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); |
| int items = OS.ItemsControl_Items (handle); |
| int index = OS.ItemCollection_IndexOf (items, item.handle); |
| OS.GCHandle_Free (items); |
| return index; |
| } |
| |
| void register () { |
| display.addWidget (handle, this); |
| } |
| |
| void releaseChildren (boolean destroy) { |
| int items = OS.ItemsControl_Items (handle); |
| for (int i=0; i<itemCount; i++) { |
| TreeItem item = parent.getItem (items, i, false); |
| if (item != null && !item.isDisposed ()) item.release (false); |
| } |
| OS.GCHandle_Free (items); |
| super.releaseChildren (destroy); |
| } |
| |
| void releaseHandle () { |
| super.releaseHandle (); |
| if (handle != 0) OS.GCHandle_Free (handle); |
| handle = 0; |
| if (contentHandle != 0) OS.GCHandle_Free (contentHandle); |
| contentHandle = 0; |
| parent = null; |
| } |
| |
| 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 (); |
| int items = OS.ItemsControl_Items (handle); |
| for (int i = 0; i < itemCount; i++) { |
| TreeItem item = parent.getItem (items, i, false); |
| if (item != null && !item.isDisposed ()) item.release (false); |
| } |
| parent.ignoreSelection = true; |
| OS.ItemCollection_Clear (items); |
| parent.ignoreSelection = false; |
| OS.GCHandle_Free (items); |
| } |
| |
| /** |
| * 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 ()) { |
| SWT.error (SWT.ERROR_INVALID_ARGUMENT); |
| } |
| if (color != null && color.isDisposed ()) { |
| SWT.error (SWT.ERROR_INVALID_ARGUMENT); |
| } |
| if (color != null) { |
| int brush = OS.gcnew_SolidColorBrush (color.handle); |
| OS.Control_Background (handle, brush); |
| OS.GCHandle_Free (brush); |
| } else { |
| int property = OS.Control_BackgroundProperty (); |
| OS.DependencyObject_ClearValue (handle, property); |
| OS.GCHandle_Free (property); |
| } |
| background = color; |
| if ((parent.style & SWT.VIRTUAL) != 0) cached = true; |
| } |
| |
| /** |
| * 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 ()) SWT.error (SWT.ERROR_INVALID_ARGUMENT); |
| int count = Math.max (1, parent.getColumnCount ()); |
| if (0 > index || index > count - 1) return; |
| if (cellBackground == null) cellBackground = new Color [count]; |
| cellBackground [index] = color; |
| updateBackground (index); |
| if ((parent.style & SWT.VIRTUAL) != 0) cached = 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; |
| if (this.checked == checked) return; |
| this.checked = checked; |
| if ((parent.style & SWT.VIRTUAL) != 0) cached = true; |
| parent.ignoreSelection = true; |
| updateCheck (); |
| parent.ignoreSelection = false; |
| } |
| |
| /** |
| * 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 (); |
| OS.TreeViewItem_IsExpanded (handle, expanded); |
| } |
| |
| /** |
| * 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 ()) { |
| SWT.error (SWT.ERROR_INVALID_ARGUMENT); |
| } |
| if (font != null) { |
| int family = OS.Typeface_FontFamily (font.handle); |
| OS.Control_FontFamily (handle, family); |
| OS.GCHandle_Free (family); |
| int stretch = OS.Typeface_Stretch (font.handle); |
| OS.Control_FontStretch (handle, stretch); |
| OS.GCHandle_Free (stretch); |
| int style = OS.Typeface_Style (font.handle); |
| OS.Control_FontStyle (handle, style); |
| OS.GCHandle_Free (style); |
| int weight = OS.Typeface_Weight (font.handle); |
| OS.Control_FontWeight (handle, weight); |
| OS.GCHandle_Free (weight); |
| OS.Control_FontSize (handle, font.size); |
| } else { |
| int property = OS.Control_FontFamilyProperty (); |
| OS.DependencyObject_ClearValue (handle, property); |
| OS.GCHandle_Free (property); |
| property = OS. Control_FontStyleProperty (); |
| OS.DependencyObject_ClearValue (handle, property); |
| OS.GCHandle_Free (property); |
| property = OS.Control_FontStretchProperty (); |
| OS.DependencyObject_ClearValue (handle, property); |
| OS.GCHandle_Free (property); |
| property = OS.Control_FontWeightProperty (); |
| OS.DependencyObject_ClearValue (handle, property); |
| OS.GCHandle_Free (property); |
| property = OS.Control_FontSizeProperty (); |
| OS.DependencyObject_ClearValue (handle, property); |
| OS.GCHandle_Free (property); |
| } |
| this.font = font; |
| if ((parent.style & SWT.VIRTUAL) != 0) cached = true; |
| } |
| |
| |
| /** |
| * 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 ()) { |
| SWT.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; |
| updateFont (index); |
| if ((parent.style & SWT.VIRTUAL) != 0) cached = true; |
| } |
| |
| /** |
| * 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) |
| * |
| * @since 2.0 |
| * |
| * @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 ()) { |
| SWT.error (SWT.ERROR_INVALID_ARGUMENT); |
| } |
| if (color != null) { |
| int brush = OS.gcnew_SolidColorBrush (color.handle); |
| OS.Control_Foreground (handle, brush); |
| OS.GCHandle_Free (brush); |
| } else { |
| int property = OS.Control_ForegroundProperty (); |
| OS.DependencyObject_ClearValue (handle, property); |
| OS.GCHandle_Free (property); |
| } |
| foreground = color; |
| if ((parent.style & SWT.VIRTUAL) != 0) cached = true; |
| } |
| |
| /** |
| * 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 ()) { |
| SWT.error (SWT.ERROR_INVALID_ARGUMENT); |
| } |
| int count = Math.max (1, parent.getColumnCount ()); |
| if (0 > index || index > count - 1) return; |
| if (cellForeground == null) cellForeground = new Color [count]; |
| cellForeground [index] = color; |
| updateForeground (index); |
| if ((parent.style & SWT.VIRTUAL) != 0) cached = true; |
| } |
| |
| /** |
| * 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; |
| if ((parent.style & SWT.VIRTUAL) != 0) cached = true; |
| parent.ignoreSelection = true; |
| updateCheck (); |
| parent.ignoreSelection = false; |
| } |
| |
| /** |
| * 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); |
| } |
| int count = Math.max (1, parent.getColumnCount ()); |
| if (0 > index || index > count - 1) return; |
| if (images == null) images = new Image [count]; |
| images [index] = image; |
| updateImage (index); |
| if ((parent.style & SWT.VIRTUAL) != 0) cached = true; |
| } |
| |
| 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 (); |
| 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); |
| int count = Math.max (1, parent.getColumnCount ()); |
| if (0 > index || index > count - 1) return; |
| if (strings == null) strings = new String [count]; |
| if ((parent.style & SWT.VIRTUAL) != 0) cached = true; |
| strings [index] = string; |
| updateText (index); |
| } |
| |
| public void setText (String string) { |
| checkWidget (); |
| setText (0, string); |
| } |
| |
| void updateBackground (int index) { |
| int panel = findPart (index, Tree.CONTENTPANEL_PART_NAME); |
| if (panel != 0) { |
| if (cellBackground != null && cellBackground [index] != null) { |
| int brush = OS.gcnew_SolidColorBrush (cellBackground [index].handle); |
| OS.Panel_Background (panel, brush); |
| OS.GCHandle_Free (brush); |
| } else { |
| int property = OS.Panel_BackgroundProperty (); |
| OS.DependencyObject_ClearValue (panel, property); |
| OS.GCHandle_Free (property); |
| } |
| OS.GCHandle_Free (panel); |
| } |
| } |
| |
| void updateCheck () { |
| if ((parent.style & SWT.CHECK) == 0) return; |
| int checkBox = findPart (0, Tree.CHECKBOX_PART_NAME); |
| if (checkBox != 0) { |
| parent.ignoreSelection = true; |
| if (!grayed) { |
| OS.ToggleButton_IsChecked (checkBox, checked); |
| } else { |
| if (checked) |
| OS.ToggleButton_IsCheckedNullSetter (checkBox); |
| } |
| parent.ignoreSelection = false; |
| OS.GCHandle_Free (checkBox); |
| } |
| } |
| |
| void updateFont (int index) { |
| if (cellFont == null) return; |
| int textBlock = findPart (index, Tree.TEXT_PART_NAME); |
| if (textBlock != 0) { |
| Font font = cellFont != null ? cellFont [index] : null; |
| if (font != null) { |
| int family = OS.Typeface_FontFamily (font.handle); |
| OS.TextBlock_FontFamily (textBlock, family); |
| OS.GCHandle_Free (family); |
| int stretch = OS.Typeface_Stretch (font.handle); |
| OS.TextBlock_FontStretch (textBlock, stretch); |
| OS.GCHandle_Free (stretch); |
| int style = OS.Typeface_Style (font.handle); |
| OS.TextBlock_FontStyle (textBlock, style); |
| OS.GCHandle_Free (style); |
| int weight = OS.Typeface_Weight (font.handle); |
| OS.TextBlock_FontWeight (textBlock, weight); |
| OS.GCHandle_Free (weight); |
| OS.TextBlock_FontSize (textBlock, font.size); |
| } else { |
| int property = OS.TextBlock_FontFamilyProperty (); |
| OS.DependencyObject_ClearValue (textBlock, property); |
| OS.GCHandle_Free (property); |
| property = OS.TextBlock_FontSizeProperty (); |
| OS.DependencyObject_ClearValue (textBlock, property); |
| OS.GCHandle_Free (property); |
| property = OS.TextBlock_FontStretchProperty (); |
| OS.DependencyObject_ClearValue (textBlock, property); |
| OS.GCHandle_Free (property); |
| property = OS.TextBlock_FontWeightProperty (); |
| OS.DependencyObject_ClearValue (textBlock, property); |
| OS.GCHandle_Free (property); |
| property = OS.TextBlock_FontStyleProperty (); |
| OS.DependencyObject_ClearValue (textBlock, property); |
| OS.GCHandle_Free (property); |
| } |
| OS.GCHandle_Free (textBlock); |
| } |
| } |
| |
| void updateForeground (int index) { |
| int textBlock = findPart (index, Tree.TEXT_PART_NAME); |
| if (textBlock != 0) { |
| if (cellForeground != null && cellForeground [index] != null) { |
| int brush = OS.gcnew_SolidColorBrush (cellForeground [index].handle); |
| OS.TextBlock_Foreground (textBlock, brush); |
| OS.GCHandle_Free (brush); |
| } else { |
| int property = OS.Control_ForegroundProperty (); |
| OS.DependencyObject_ClearValue (textBlock, property); |
| OS.GCHandle_Free (property); |
| } |
| OS.GCHandle_Free (textBlock); |
| } |
| } |
| |
| void updateImage (int index) { |
| if (images == null) return; |
| int img = findPart (index, Tree.IMAGE_PART_NAME); |
| if (img != 0) { |
| int src = 0; |
| if (images != null) src = images [index] != null ? images [index].handle : 0; |
| OS.Image_Source (img, src); |
| OS.GCHandle_Free (img); |
| } |
| } |
| |
| void updateText (int index) { |
| int textBlock = findPart (index, Tree.TEXT_PART_NAME); |
| if (textBlock != 0) { |
| if (strings != null && strings [index] != null) { |
| int strPtr = createDotNetString (strings [index], false); |
| OS.TextBlock_Text (textBlock, strPtr); |
| OS.GCHandle_Free (strPtr); |
| } else { |
| int property = OS.TextBlock_TextProperty (); |
| OS.DependencyObject_ClearValue (textBlock, property); |
| OS.GCHandle_Free (property); |
| } |
| OS.GCHandle_Free (textBlock); |
| } |
| } |
| } |