| /******************************************************************************* |
| * Copyright (c) 2000, 2009 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.*; |
| import org.eclipse.swt.events.*; |
| |
| /** |
| * Instances of this class provide a selectable user interface object |
| * that displays a hierarchy of items and issues notification when an |
| * item in the hierarchy is selected. |
| * <p> |
| * The item children that may be added to instances of this class |
| * must be of type <code>TreeItem</code>. |
| * </p><p> |
| * Style <code>VIRTUAL</code> is used to create a <code>Tree</code> whose |
| * <code>TreeItem</code>s are to be populated by the client on an on-demand basis |
| * instead of up-front. This can provide significant performance improvements for |
| * trees that are very large or for which <code>TreeItem</code> population is |
| * expensive (for example, retrieving values from an external source). |
| * </p><p> |
| * Here is an example of using a <code>Tree</code> with style <code>VIRTUAL</code>: |
| * <code><pre> |
| * final Tree tree = new Tree(parent, SWT.VIRTUAL | SWT.BORDER); |
| * tree.setItemCount(20); |
| * tree.addListener(SWT.SetData, new Listener() { |
| * public void handleEvent(Event event) { |
| * TreeItem item = (TreeItem)event.item; |
| * TreeItem parentItem = item.getParentItem(); |
| * String text = null; |
| * if (parentItem == null) { |
| * text = "node " + tree.indexOf(item); |
| * } else { |
| * text = parentItem.getText() + " - " + parentItem.indexOf(item); |
| * } |
| * item.setText(text); |
| * System.out.println(text); |
| * item.setItemCount(10); |
| * } |
| * }); |
| * </pre></code> |
| * </p><p> |
| * Note that although this class is a subclass of <code>Composite</code>, |
| * it does not normally make sense to add <code>Control</code> children to |
| * it, or set a layout on it, unless implementing something like a cell |
| * editor. |
| * </p><p> |
| * <dl> |
| * <dt><b>Styles:</b></dt> |
| * <dd>SINGLE, MULTI, CHECK, FULL_SELECTION, VIRTUAL, NO_SCROLL</dd> |
| * <dt><b>Events:</b></dt> |
| * <dd>Selection, DefaultSelection, Collapse, Expand, SetData, MeasureItem, EraseItem, PaintItem</dd> |
| * </dl> |
| * </p><p> |
| * Note: Only one of the styles SINGLE and MULTI may be specified. |
| * </p><p> |
| * IMPORTANT: This class is <em>not</em> intended to be subclassed. |
| * </p> |
| * |
| * @see <a href="http://www.eclipse.org/swt/snippets/#tree">Tree, TreeItem, TreeColumn snippets</a> |
| * @see <a href="http://www.eclipse.org/swt/examples.php">SWT Example: ControlExample</a> |
| * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> |
| * @noextend This class is not intended to be subclassed by clients. |
| */ |
| public class Tree extends Composite { |
| int gvColumns, parentingHandle, headerTemplate; |
| int columnCount, itemCount; |
| TreeItem anchor, lastSelection, unselect, reselect; |
| TreeColumn [] columns; |
| byte headerVisibility = OS.Visibility_Collapsed; |
| boolean ignoreSelection, shiftDown, ctrlDown; |
| |
| static final String HEADER_PART_NAME = "SWT_PART_HEADER"; |
| static final String SCROLLVIEWER_PART_NAME = "SWT_PART_SCROLLVIEWER"; |
| static final String CHECKBOX_PART_NAME = "SWT_PART_CHECKBOX"; |
| static final String IMAGE_PART_NAME = "SWT_PART_IMAGE"; |
| static final String TEXT_PART_NAME = "SWT_PART_TEXT"; |
| static final String CONTENTPANEL_PART_NAME = "SWT_PART_CONTENTPANEL"; |
| static final String RENDER_PANEL_NAME = "SWT_PART_RENDERPANEL"; |
| |
| static String scrollViewerStyle = "<Style TargetType=\"ScrollViewer\" " + |
| "xmlns=\"http://schemas.microsoft.com/winfx/2006/xaml/presentation\" " + |
| "xmlns:s=\"clr-namespace:System;assembly=mscorlib\" " + |
| "xmlns:x=\"http://schemas.microsoft.com/winfx/2006/xaml\">" + |
| "<Setter Property=\"UIElement.Focusable\" Value=\"False\"/>" + |
| "<Setter Property=\"Control.Template\">" + |
| "<Setter.Value>" + |
| "<ControlTemplate TargetType=\"ScrollViewer\">" + |
| "<Grid Background=\"{TemplateBinding Control.Background}\" SnapsToDevicePixels=\"True\">" + |
| "<Grid.ColumnDefinitions>" + |
| "<ColumnDefinition Width=\"*\" />" + |
| "<ColumnDefinition Width=\"Auto\" />" + |
| "</Grid.ColumnDefinitions>" + |
| "<Grid.RowDefinitions>" + |
| "<RowDefinition Height=\"*\" />" + |
| "<RowDefinition Height=\"Auto\" />" + |
| "</Grid.RowDefinitions>" + |
| "<DockPanel Margin=\"{TemplateBinding Control.Padding}\">" + |
| "<ScrollViewer HorizontalScrollBarVisibility=\"Hidden\" VerticalScrollBarVisibility=\"Hidden\" Focusable=\"False\" DockPanel.Dock=\"Top\">" + |
| "<GridViewHeaderRowPresenter Name=\"SWT_PART_HEADER\" Margin=\"2,0,2,0\" Visibility=\"Collapsed\" ColumnHeaderToolTip=\"{x:Null}\" " + |
| "ColumnHeaderContainerStyle=\"{x:Null}\" SnapsToDevicePixels=\"{TemplateBinding UIElement.SnapsToDevicePixels}\" " + |
| "AllowsColumnReorder=\"True\" ColumnHeaderTemplate=\"{x:Null}\" ColumnHeaderContextMenu=\"{x:Null}\">" + |
| "<GridViewHeaderRowPresenter.Columns>" + |
| "<TemplateBinding Property=\"GridViewHeaderRowPresenter.Columns\"/>" + |
| "</GridViewHeaderRowPresenter.Columns>" + |
| "</GridViewHeaderRowPresenter>" + |
| "</ScrollViewer>" + |
| "<ScrollContentPresenter VirtualizingStackPanel.IsVirtualizing=\"True\" CanVerticallyScroll=\"False\" " + |
| "CanHorizontallyScroll=\"False\" Name=\"PART_ScrollContentPresenter\" " + |
| "SnapsToDevicePixels=\"{TemplateBinding UIElement.SnapsToDevicePixels}\" " + |
| "ContentTemplate=\"{TemplateBinding ContentControl.ContentTemplate}\" " + |
| "CanContentScroll=\"{TemplateBinding ScrollViewer.CanContentScroll}\" " + |
| "Content=\"{TemplateBinding ContentControl.Content}\" KeyboardNavigation.DirectionalNavigation=\"Local\" />" + |
| "</DockPanel>" + |
| "<ScrollBar Value=\"{TemplateBinding HorizontalOffset}\" Maximum=\"{TemplateBinding ScrollViewer.ScrollableWidth}\" " + |
| "Visibility=\"{TemplateBinding ScrollViewer.ComputedHorizontalScrollBarVisibility}\" Name=\"PART_HorizontalScrollBar\" " + |
| "Cursor=\"Arrow\" Minimum=\"0\" Orientation=\"Horizontal\" Grid.Row=\"1\" " + |
| "ViewportSize=\"{TemplateBinding ViewportWidth}\"/>" + |
| "<ScrollBar Value=\"{TemplateBinding VerticalOffset}\" Maximum=\"{TemplateBinding ScrollViewer.ScrollableHeight}\" " + |
| "Visibility=\"{TemplateBinding ScrollViewer.ComputedVerticalScrollBarVisibility}\" Name=\"PART_VerticalScrollBar\" " + |
| "Cursor=\"Arrow\" Minimum=\"0\" Orientation=\"Vertical\" Grid.Column=\"1\" " + |
| "ViewportSize=\"{TemplateBinding ViewportHeight}\" />" + |
| "<DockPanel Background=\"{x:Null}\" LastChildFill=\"False\" Grid.Column=\"1\" Grid.Row=\"1\">" + |
| "<Rectangle Width=\"1\" Visibility=\"{TemplateBinding ScrollViewer.ComputedVerticalScrollBarVisibility}\" " + |
| "Fill=\"#FFFFFFFF\" DockPanel.Dock=\"Left\" />" + |
| "<Rectangle Height=\"1\" Visibility=\"{TemplateBinding ScrollViewer.ComputedHorizontalScrollBarVisibility}\" " + |
| "Fill=\"#FFFFFFFF\" DockPanel.Dock=\"Top\" />" + |
| "</DockPanel>" + |
| "</Grid>" + |
| "</ControlTemplate>" + |
| "</Setter.Value>" + |
| "</Setter>" + |
| "</Style>"; |
| |
| /** |
| * Constructs a new instance of this class given its parent |
| * and a style value describing its behavior and appearance. |
| * <p> |
| * The style value is either one of the style constants defined in |
| * class <code>SWT</code> which is applicable to instances of this |
| * class, or must be built by <em>bitwise OR</em>'ing together |
| * (that is, using the <code>int</code> "|" operator) two or more |
| * of those <code>SWT</code> style constants. The class description |
| * lists the style constants that are applicable to the class. |
| * Style bits are also inherited from superclasses. |
| * </p> |
| * |
| * @param parent a composite control which will be the parent of the new instance (cannot be null) |
| * @param style the style of control to construct |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> |
| * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> |
| * </ul> |
| * |
| * @see SWT#SINGLE |
| * @see SWT#MULTI |
| * @see SWT#CHECK |
| * @see SWT#FULL_SELECTION |
| * @see SWT#VIRTUAL |
| * @see SWT#NO_SCROLL |
| * @see Widget#checkSubclass |
| * @see Widget#getStyle |
| */ |
| public Tree (Composite parent, int style) { |
| super (parent, checkStyle (style)); |
| } |
| |
| static int checkStyle (int style) { |
| /* |
| * Feature in Windows. Even when WS_HSCROLL or |
| * WS_VSCROLL is not specified, Windows creates |
| * trees and tables with scroll bars. The fix |
| * is to set H_SCROLL and V_SCROLL. |
| * |
| * NOTE: This code appears on all platforms so that |
| * applications have consistent scroll bar behavior. |
| */ |
| if ((style & SWT.NO_SCROLL) == 0) { |
| style |= SWT.H_SCROLL | SWT.V_SCROLL; |
| } |
| /* WPF is always FULL_SELECTION */ |
| style |= SWT.FULL_SELECTION; |
| return checkBits (style, SWT.SINGLE, SWT.MULTI, 0, 0, 0, 0); |
| } |
| |
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notified when the user changes the receiver's selection, by sending |
| * it one of the messages defined in the <code>SelectionListener</code> |
| * interface. |
| * <p> |
| * When <code>widgetSelected</code> is called, the item field of the event object is valid. |
| * If the receiver has the <code>SWT.CHECK</code> style and the check selection changes, |
| * the event object detail field contains the value <code>SWT.CHECK</code>. |
| * <code>widgetDefaultSelected</code> is typically called when an item is double-clicked. |
| * The item field of the event object is valid for default selection, but the detail field is not used. |
| * </p> |
| * |
| * @param listener the listener which should be notified when the user changes the receiver's selection |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see SelectionListener |
| * @see #removeSelectionListener |
| * @see SelectionEvent |
| */ |
| public void addSelectionListener (SelectionListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| TypedListener typedListener = new TypedListener (listener); |
| addListener (SWT.Selection, typedListener); |
| addListener (SWT.DefaultSelection, typedListener); |
| } |
| |
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notified when an item in the receiver is expanded or collapsed |
| * by sending it one of the messages defined in the <code>TreeListener</code> |
| * interface. |
| * |
| * @param listener the listener which should be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see TreeListener |
| * @see #removeTreeListener |
| */ |
| public void addTreeListener (TreeListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| TypedListener typedListener = new TypedListener (listener); |
| addListener (SWT.Expand, typedListener); |
| addListener (SWT.Collapse, typedListener); |
| } |
| |
| int backgroundHandle () { |
| return parentingHandle; |
| } |
| |
| boolean checkData (TreeItem item) { |
| if ((style & SWT.VIRTUAL) == 0) return true; |
| if (!item.cached) { |
| item.cached = true; |
| int parentItem = OS.FrameworkElement_Parent (item.handle); |
| int items = OS.ItemsControl_Items (parentItem); |
| int index = OS.ItemCollection_IndexOf (items, item.handle); |
| OS.GCHandle_Free (items); |
| OS.GCHandle_Free (parentItem); |
| Event event = new Event (); |
| event.item = item; |
| event.index = index; |
| sendEvent (SWT.SetData, event); |
| if (isDisposed () || item.isDisposed ()) return false; |
| } |
| return true; |
| } |
| |
| protected void checkSubclass () { |
| if (!isValidSubclass ()) error (SWT.ERROR_INVALID_SUBCLASS); |
| } |
| |
| /** |
| * Clears the item at the given zero-relative index in the receiver. |
| * The text, icon and other attributes of the item are set to the default |
| * value. If the tree was created with the <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); |
| clear (handle, index, all); |
| } |
| |
| void clear (int parentHandle, int index, boolean all) { |
| int items = OS.ItemsControl_Items (parentHandle); |
| TreeItem item = getItem (items, index, false); |
| if (item != null) { |
| item.clear (); |
| if (all) clearAll (item, true); |
| } |
| OS.GCHandle_Free (items); |
| } |
| |
| /** |
| * 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 (); |
| clearAll (null, all); |
| } |
| |
| void clearAll (TreeItem parentItem, boolean all) { |
| int count = parentItem != null ? parentItem.itemCount : itemCount; |
| int parentHandle = parentItem != null ? parentItem.handle : handle; |
| int items = OS.ItemsControl_Items (parentHandle); |
| for (int i=0; i<count; i++) { |
| TreeItem item = getItem (items, i, false); |
| if (item != null) { |
| item.clear (); |
| if (all) clearAll (item, true); |
| } |
| } |
| OS.GCHandle_Free (items); |
| } |
| |
| int createCellTemplate (int index) { |
| int template = OS.gcnew_DataTemplate (); |
| int renderPanelType = OS.SWTDockPanel_typeid (); |
| int renderPanelName = createDotNetString(RENDER_PANEL_NAME, false); |
| int onRenderNode = OS.gcnew_FrameworkElementFactory (renderPanelType, renderPanelName); |
| OS.GCHandle_Free(renderPanelName); |
| OS.GCHandle_Free (renderPanelType); |
| int jniRefProperty = OS.SWTDockPanel_JNIRefProperty (); |
| OS.FrameworkElementFactory_SetValueInt (onRenderNode, jniRefProperty, jniRef); |
| OS.GCHandle_Free (jniRefProperty); |
| int contentPanelName = createDotNetString (CONTENTPANEL_PART_NAME, false); |
| int contentPanelType = OS.StackPanel_typeid (); |
| int cellContentNode = OS.gcnew_FrameworkElementFactory (contentPanelType, contentPanelName); |
| OS.GCHandle_Free (contentPanelType); |
| OS.GCHandle_Free (contentPanelName); |
| int clipProperty = OS.UIElement_ClipToBoundsProperty (); |
| OS.FrameworkElementFactory_SetValue (cellContentNode, clipProperty, true); |
| OS.GCHandle_Free (clipProperty); |
| int orientationProperty = OS.StackPanel_OrientationProperty (); |
| OS.FrameworkElementFactory_SetValueOrientation (cellContentNode, orientationProperty, OS.Orientation_Horizontal); |
| OS.GCHandle_Free (orientationProperty); |
| |
| |
| // int vert = OS.FrameworkElement_VerticalAlignmentProperty(); |
| // OS.FrameworkElementFactory_SetValueVerticalAlignment(onRenderNode, vert, OS.VerticalAlignment_Stretch); |
| // OS.GCHandle_Free (vert); |
| // |
| // int dp = OS.Panel_BackgroundProperty(); |
| // int red = OS.Brushes_Red(); |
| // int navy = OS.Brushes_Navy(); |
| // OS.FrameworkElementFactory_SetValue(cellContentNode, dp, red); |
| // OS.FrameworkElementFactory_SetValue(onRenderNode, dp, navy); |
| // OS.GCHandle_Free (dp); |
| // OS.GCHandle_Free (red); |
| // OS.GCHandle_Free (navy); |
| |
| |
| if (index == 0 && (style & SWT.CHECK) != 0) { |
| int checkBoxType = OS.CheckBox_typeid (); |
| int checkBoxName = createDotNetString (CHECKBOX_PART_NAME, false); |
| int checkBoxNode = OS.gcnew_FrameworkElementFactory (checkBoxType, checkBoxName); |
| int verticalAlignmentProperty = OS.FrameworkElement_VerticalAlignmentProperty (); |
| OS.FrameworkElementFactory_SetValueVerticalAlignment (checkBoxNode, verticalAlignmentProperty, OS.VerticalAlignment_Center); |
| int marginProperty = OS.FrameworkElement_MarginProperty (); |
| int thickness = OS.gcnew_Thickness (0,0,4,0); |
| OS.FrameworkElementFactory_SetValue (checkBoxNode, marginProperty, thickness); |
| OS.FrameworkElementFactory_AppendChild (cellContentNode, checkBoxNode); |
| OS.GCHandle_Free (thickness); |
| OS.GCHandle_Free (marginProperty); |
| OS.GCHandle_Free (verticalAlignmentProperty); |
| OS.GCHandle_Free (checkBoxName); |
| OS.GCHandle_Free (checkBoxNode); |
| OS.GCHandle_Free (checkBoxType); |
| } |
| int textType = OS.TextBlock_typeid (); |
| int textName = createDotNetString (TEXT_PART_NAME, false); |
| int textNode = OS.gcnew_FrameworkElementFactory (textType, textName); |
| OS.GCHandle_Free (textName); |
| OS.GCHandle_Free (textType); |
| int verticalAlignmentProperty = OS.FrameworkElement_VerticalAlignmentProperty (); |
| OS.FrameworkElementFactory_SetValueVerticalAlignment (textNode, verticalAlignmentProperty, OS.VerticalAlignment_Center); |
| OS.GCHandle_Free (verticalAlignmentProperty); |
| int imageType = OS.Image_typeid (); |
| int imageName = createDotNetString (IMAGE_PART_NAME, false); |
| int imageNode = OS.gcnew_FrameworkElementFactory (imageType, imageName); |
| OS.GCHandle_Free (imageName); |
| OS.GCHandle_Free (imageType); |
| int marginProperty = OS.FrameworkElement_MarginProperty (); |
| int thickness = OS.gcnew_Thickness (0,0,4,0); |
| OS.FrameworkElementFactory_SetValue (imageNode, marginProperty, thickness); |
| OS.GCHandle_Free (marginProperty); |
| OS.GCHandle_Free (thickness); |
| int stretchProperty = OS.Image_StretchProperty (); |
| OS.FrameworkElementFactory_SetValueStretch(imageNode, stretchProperty, OS.Stretch_None); |
| OS.GCHandle_Free(stretchProperty); |
| OS.FrameworkElementFactory_AppendChild (cellContentNode, imageNode); |
| OS.GCHandle_Free (imageNode); |
| OS.FrameworkElementFactory_AppendChild (cellContentNode, textNode); |
| OS.GCHandle_Free (textNode); |
| OS.FrameworkElementFactory_AppendChild (onRenderNode, cellContentNode); |
| OS.GCHandle_Free (cellContentNode); |
| OS.FrameworkTemplate_VisualTree (template, onRenderNode); |
| OS.GCHandle_Free (onRenderNode); |
| return template; |
| } |
| |
| int createControlTemplate () { |
| int template = OS.gcnew_ControlTemplate (); |
| int borderType = OS.Border_typeid (); |
| int borderNode = OS.gcnew_FrameworkElementFactory (borderType); |
| int brushProperty = OS.Control_BorderBrushProperty (); |
| int brushBinding = OS.gcnew_TemplateBindingExtension (brushProperty); |
| OS.FrameworkElementFactory_SetValue (borderNode, brushProperty, brushBinding); |
| int thicknessProperty = OS.Control_BorderThicknessProperty (); |
| int thicknessBinding = OS.gcnew_TemplateBindingExtension (thicknessProperty); |
| OS.FrameworkElementFactory_SetValue (borderNode, thicknessProperty, thicknessBinding); |
| int scrollViewerType = OS.ScrollViewer_typeid (); |
| int scrollViewerName = createDotNetString (SCROLLVIEWER_PART_NAME, false); |
| int scrollViewerNode = OS.gcnew_FrameworkElementFactory (scrollViewerType, scrollViewerName); |
| int itemsPresenterType = OS.ItemsPresenter_typeid (); |
| int itemsPresenterNode = OS.gcnew_FrameworkElementFactory (itemsPresenterType); |
| OS.FrameworkElementFactory_AppendChild (borderNode, scrollViewerNode); |
| OS.FrameworkElementFactory_AppendChild (scrollViewerNode, itemsPresenterNode); |
| int scrollStyle = createDotNetString(scrollViewerStyle, false); |
| int stringReader = OS.gcnew_StringReader (scrollStyle); |
| int xmlReader = OS.XmlReader_Create (stringReader); |
| int xamlStyle = OS.XamlReader_Load (xmlReader); |
| int styleProperty = OS.FrameworkElement_StyleProperty(); |
| OS.FrameworkElementFactory_SetValue (scrollViewerNode, styleProperty, xamlStyle); |
| int columnsProperty = OS.GridViewRowPresenterBase_ColumnsProperty (); |
| OS.FrameworkElementFactory_SetValue (scrollViewerNode, columnsProperty, gvColumns); |
| OS.FrameworkTemplate_VisualTree (template, borderNode); |
| OS.GCHandle_Free (brushProperty); |
| OS.GCHandle_Free (thicknessProperty); |
| OS.GCHandle_Free (brushBinding); |
| OS.GCHandle_Free (thicknessBinding); |
| OS.GCHandle_Free (scrollStyle); |
| OS.GCHandle_Free (stringReader); |
| OS.GCHandle_Free (xmlReader); |
| OS.GCHandle_Free (styleProperty); |
| OS.GCHandle_Free (columnsProperty); |
| OS.GCHandle_Free (xamlStyle); |
| OS.GCHandle_Free (scrollViewerType); |
| OS.GCHandle_Free (scrollViewerName); |
| OS.GCHandle_Free (scrollViewerNode); |
| OS.GCHandle_Free (borderType); |
| OS.GCHandle_Free (borderNode); |
| OS.GCHandle_Free (itemsPresenterType); |
| OS.GCHandle_Free (itemsPresenterNode); |
| return template; |
| } |
| |
| void createHandle () { |
| parentingHandle = OS.gcnew_Canvas (); |
| if (parentingHandle == 0) error (SWT.ERROR_NO_HANDLES); |
| if ((style & SWT.SINGLE) != 0) { |
| handle = OS.gcnew_TreeView (); |
| } else { |
| handle = OS.gcnew_SWTTreeView (jniRef); |
| } |
| if (handle == 0) error (SWT.ERROR_NO_HANDLES); |
| OS.Canvas_SetLeft (handle, 0); |
| OS.Canvas_SetTop (handle, 0); |
| int children = OS.Panel_Children (parentingHandle); |
| OS.UIElementCollection_Add (children, handle); |
| OS.GCHandle_Free (children); |
| } |
| |
| int createHeaderTemplate (int columnJniRef) { |
| int template = OS.gcnew_DataTemplate (); |
| int stackPanelType = OS.StackPanel_typeid (); |
| int stackPanelName = createDotNetString (CONTENTPANEL_PART_NAME, false); |
| int stackPanelNode = OS.gcnew_FrameworkElementFactory (stackPanelType, stackPanelName); |
| OS.GCHandle_Free (stackPanelName); |
| OS.GCHandle_Free (stackPanelType); |
| int textType = OS.TextBlock_typeid (); |
| int textName = createDotNetString (TEXT_PART_NAME, false); |
| int textNode = OS.gcnew_FrameworkElementFactory (textType, textName); |
| OS.GCHandle_Free (textName); |
| OS.GCHandle_Free (textType); |
| int imageType = OS.Image_typeid (); |
| int imageName = createDotNetString (IMAGE_PART_NAME, false); |
| int imageNode = OS.gcnew_FrameworkElementFactory (imageType, imageName); |
| OS.GCHandle_Free (imageName); |
| OS.GCHandle_Free (imageType); |
| int marginProperty = OS.FrameworkElement_MarginProperty (); |
| int thickness = OS.gcnew_Thickness (0,0,4,0); |
| OS.FrameworkElementFactory_SetValue (imageNode, marginProperty, thickness); |
| OS.GCHandle_Free (thickness); |
| OS.GCHandle_Free (marginProperty); |
| int orientationProperty = OS.StackPanel_OrientationProperty (); |
| OS.FrameworkElementFactory_SetValueOrientation (stackPanelNode, orientationProperty, OS.Orientation_Horizontal); |
| OS.GCHandle_Free (orientationProperty); |
| int stretchProperty = OS.Image_StretchProperty (); |
| OS.FrameworkElementFactory_SetValueStretch (imageNode, stretchProperty, OS.Stretch_None); |
| OS.GCHandle_Free (stretchProperty); |
| OS.FrameworkElementFactory_AppendChild (stackPanelNode, imageNode); |
| OS.GCHandle_Free (imageNode); |
| OS.FrameworkElementFactory_AppendChild (stackPanelNode, textNode); |
| OS.GCHandle_Free (textNode); |
| OS.FrameworkTemplate_VisualTree (template, stackPanelNode); |
| OS.GCHandle_Free (stackPanelNode); |
| return template; |
| } |
| |
| void createItem (TreeColumn column, int index) { |
| if (!(0 <= index && index <= columnCount)) error (SWT.ERROR_INVALID_RANGE); |
| if (columnCount == 0) { |
| gvColumns = OS.gcnew_GridViewColumnCollection (); |
| if (gvColumns == 0) error (SWT.ERROR_NO_HANDLES); |
| int template = createControlTemplate (); |
| OS.Control_Template (handle, template); |
| OS.GCHandle_Free (template); |
| updateHeaderVisibility (); |
| } |
| column.createWidget (); |
| int template = createHeaderTemplate (column.jniRef); |
| OS.GridViewColumn_HeaderTemplate (column.handle, template); |
| OS.GCHandle_Free (template); |
| template = createCellTemplate (index); |
| OS.GridViewColumn_CellTemplate (column.handle, template); |
| OS.GCHandle_Free (template); |
| if (columnCount == 0) { |
| OS.GridViewColumnCollection_Clear (gvColumns); |
| } |
| OS.GridViewColumnCollection_Insert (gvColumns, index, column.handle); |
| int items = OS.ItemsControl_Items (handle); |
| for (int i=0; i<itemCount; i++) { |
| TreeItem item = getItem (items, i, false); |
| if (item != null) { |
| item.columnAdded (index); |
| } |
| } |
| OS.GCHandle_Free (items); |
| if (columns == null) columns = new TreeColumn [4]; |
| if (columns.length == columnCount) { |
| TreeColumn [] newColumns = new TreeColumn [columnCount + 4]; |
| System.arraycopy(columns, 0, newColumns, 0, columnCount); |
| columns = newColumns; |
| } |
| columns [columnCount] = column; |
| columnCount++; |
| } |
| |
| void createItem (TreeItem item, TreeItem parentItem, int index) { |
| int itemCount = parentItem != null ? parentItem.itemCount : this.itemCount; |
| if (!(0 <= index && index <= itemCount)) error (SWT.ERROR_INVALID_RANGE); |
| item.createWidget (); |
| int parentHandle = parentItem != null ? parentItem.handle : handle; |
| int items = OS.ItemsControl_Items (parentHandle); |
| OS.ItemCollection_Insert (items, index, item.handle); |
| int count = OS.ItemCollection_Count (items); |
| OS.GCHandle_Free (items); |
| if (itemCount == count) error (SWT.ERROR_ITEM_NOT_ADDED); |
| if (parentItem != null) { |
| parentItem.itemCount++; |
| } else { |
| this.itemCount++; |
| } |
| } |
| |
| void createWidget() { |
| super.createWidget (); |
| headerTemplate = createCellTemplate (0); |
| int brush = OS.Brushes_Transparent (); |
| OS.Control_Background (handle, brush); |
| OS.GCHandle_Free (brush); |
| } |
| |
| int defaultBackground () { |
| return display.getSystemColor (SWT.COLOR_LIST_BACKGROUND).handle; |
| } |
| |
| int defaultForeground () { |
| return display.getSystemColor (SWT.COLOR_LIST_FOREGROUND).handle; |
| } |
| |
| void deregister () { |
| super.deregister (); |
| display.removeWidget (parentingHandle); |
| } |
| |
| /** |
| * Deselects an item in the receiver. If the item was already |
| * deselected, it remains deselected. |
| * |
| * @param item the item to be deselected |
| * |
| * @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 3.4 |
| */ |
| public void deselect (TreeItem item) { |
| if (item == null) SWT.error (SWT.ERROR_NULL_ARGUMENT); |
| if (item.isDisposed ()) SWT.error (SWT.ERROR_INVALID_ARGUMENT); |
| if ((style & SWT.SINGLE) != 0) { |
| ignoreSelection = true; |
| OS.TreeViewItem_IsSelected (item.handle, false); |
| ignoreSelection = false; |
| return; |
| } |
| ignoreSelection = true; |
| setIsSelectionActiveProperty(true); |
| OS.TreeViewItem_IsSelected (item.handle, false); |
| setIsSelectionActiveProperty(false); |
| ignoreSelection = false; |
| } |
| |
| /** |
| * Deselects all selected items in the receiver. |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void deselectAll () { |
| checkWidget (); |
| if ((style & SWT.SINGLE) != 0) { |
| int tvItem = OS.TreeView_SelectedItem (handle); |
| if (tvItem != 0) { |
| ignoreSelection = true; |
| OS.TreeViewItem_IsSelected (tvItem, false); |
| ignoreSelection = false; |
| OS.GCHandle_Free (tvItem); |
| } |
| } else { |
| int items = OS.ItemsControl_Items (handle); |
| int itemCount = OS.ItemCollection_Count (items); |
| boolean[] selecting = new boolean[] {false}; |
| for (int i = 0; i < itemCount; i++) { |
| int item = OS.ItemCollection_GetItemAt (items, i); |
| fixSelection (item, null, null, selecting); |
| OS.GCHandle_Free (item); |
| } |
| OS.GCHandle_Free (items); |
| } |
| } |
| |
| void destroyItem (TreeColumn column) { |
| int index = OS.GridViewColumnCollection_IndexOf (gvColumns, column.handle); |
| boolean removed = OS.GridViewColumnCollection_Remove (gvColumns, column.handle); |
| if (!removed) error (SWT.ERROR_ITEM_NOT_REMOVED); |
| int arrayIndex = -1; |
| for (int i = 0; i < columnCount; i++) { |
| TreeColumn tc = columns [i]; |
| if (tc.equals(column)) { |
| arrayIndex = i; |
| break; |
| } |
| } |
| columnCount--; |
| columns [arrayIndex] = null; |
| if (arrayIndex < columnCount) System.arraycopy (columns, arrayIndex+1, columns, arrayIndex, columnCount - arrayIndex); |
| if (columnCount == 0) { |
| OS.GCHandle_Free (gvColumns); |
| gvColumns = 0; |
| int templateProperty = OS.Control_TemplateProperty (); |
| OS.DependencyObject_ClearValue(handle, templateProperty); |
| OS.GCHandle_Free(templateProperty); |
| } |
| int items = OS.ItemsControl_Items (handle); |
| for (int i=0; i<itemCount; i++) { |
| TreeItem item = getItem (items, i, false); |
| if (item != null) { |
| item.columnRemoved (index); |
| } |
| } |
| OS.GCHandle_Free (items); |
| } |
| |
| void destroyItem (TreeItem item) { |
| TreeItem parentItem = item.getParentItem (); |
| int itemCount = parentItem != null ? parentItem.itemCount : this.itemCount; |
| int parentHandle = parentItem != null ? parentItem.handle : handle; |
| int items = OS.ItemsControl_Items (parentHandle); |
| OS.ItemCollection_Remove (items, item.handle); |
| int count = OS.ItemCollection_Count (items); |
| OS.GCHandle_Free (items); |
| if (count == itemCount) error (SWT.ERROR_ITEM_NOT_REMOVED); |
| if (parentItem != null) { |
| parentItem.itemCount--; |
| } else { |
| this.itemCount--; |
| } |
| } |
| |
| int findScrollViewer(int current, int scrollViewerType) { |
| if (columnCount != 0) { |
| int template = OS.Control_Template (handle); |
| int scrollViewerName = createDotNetString (SCROLLVIEWER_PART_NAME, false); |
| int scrollViewer = OS.FrameworkTemplate_FindName (template, scrollViewerName, handle); |
| OS.GCHandle_Free (scrollViewerName); |
| OS.GCHandle_Free (template); |
| return scrollViewer; |
| } |
| return super.findScrollViewer (current, scrollViewerType); |
| } |
| |
| int findPartOfType (int source, int type) { |
| if (OS.Type_IsInstanceOfType (type, source)) return source; |
| int parent = OS.VisualTreeHelper_GetParent(source); |
| if (parent == 0) return 0; |
| int result = findPartOfType(parent, type); |
| if (result != parent) OS.GCHandle_Free(parent); |
| return result; |
| } |
| |
| void fixScrollbarVisibility () { |
| int typeid = OS.ScrollViewer_typeid(); |
| int scrolledHandle = findScrollViewer(handle, typeid); |
| OS.ScrollViewer_SetHorizontalScrollBarVisibility (scrolledHandle, OS.ScrollBarVisibility_Visible); |
| OS.ScrollViewer_SetVerticalScrollBarVisibility (scrolledHandle, OS.ScrollBarVisibility_Visible); |
| OS.GCHandle_Free(scrolledHandle); |
| OS.GCHandle_Free(typeid); |
| } |
| |
| /** |
| * Returns the width in pixels of a grid line. |
| * |
| * @return the width of a grid line in pixels |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.1 |
| */ |
| public int getGridLineWidth () { |
| checkWidget (); |
| //TODO |
| return 0; |
| } |
| |
| /** |
| * Returns the height of the receiver's header |
| * |
| * @return the height of the header or zero if the header is not visible |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.1 |
| */ |
| public int getHeaderHeight () { |
| checkWidget (); |
| if (gvColumns == 0) return 0; |
| int column = OS.GridViewColumnCollection_default (gvColumns, 0); |
| int height = 0; |
| int header = OS.GridViewColumn_Header (column); |
| if (header != 0) { |
| height = (int) OS.FrameworkElement_ActualHeight (header); |
| if (height == 0) { |
| updateLayout (header); |
| height = (int) OS.FrameworkElement_ActualHeight (header); |
| } |
| OS.GCHandle_Free (header); |
| } |
| OS.GCHandle_Free (column); |
| OS.GCHandle_Free (gvColumns); |
| return height; |
| } |
| |
| /** |
| * Returns <code>true</code> if the receiver's header is visible, |
| * and <code>false</code> otherwise. |
| * <p> |
| * If one of the receiver's ancestors is not visible or some |
| * other condition makes the receiver not visible, this method |
| * may still indicate that it is considered visible even though |
| * it may not actually be showing. |
| * </p> |
| * |
| * @return the receiver's header's visibility state |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.1 |
| */ |
| public boolean getHeaderVisible () { |
| checkWidget (); |
| if (gvColumns == 0) return false; |
| int column = OS.GridViewColumnCollection_default (gvColumns, 0); |
| int header = OS.GridViewColumn_Header (column); |
| boolean visible = OS.UIElement_Visibility (header) == OS.Visibility_Visible; |
| OS.GCHandle_Free (header); |
| OS.GCHandle_Free (column); |
| return visible; |
| } |
| |
| /** |
| * Returns the column at the given, zero-relative index in the |
| * receiver. Throws an exception if the index is out of range. |
| * Columns are returned in the order that they were created. |
| * If no <code>TreeColumn</code>s were created by the programmer, |
| * this method will throw <code>ERROR_INVALID_RANGE</code> despite |
| * the fact that a single column of data may be visible in the tree. |
| * This occurs when the programmer uses the tree like a list, adding |
| * items but never creating a column. |
| * |
| * @param index the index of the column to return |
| * @return the column at the given index |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see Tree#getColumnOrder() |
| * @see Tree#setColumnOrder(int[]) |
| * @see TreeColumn#getMoveable() |
| * @see TreeColumn#setMoveable(boolean) |
| * @see SWT#Move |
| * |
| * @since 3.1 |
| */ |
| public TreeColumn getColumn (int index) { |
| checkWidget (); |
| if (!(0 <= index && index < columnCount)) error (SWT.ERROR_INVALID_RANGE); |
| return columns [index]; |
| } |
| |
| //TreeColumn _getColumn (int index) { |
| // if (columnCount == 0) return null; |
| // int gridColumn = OS.GridViewColumnCollection_default (gvColumns, index); |
| // int header = OS.GridViewColumn_Header (gridColumn); |
| // TreeColumn column = (TreeColumn) display.getWidget (header); |
| // OS.GCHandle_Free (gridColumn); |
| // OS.GCHandle_Free (header); |
| // return column; |
| //} |
| |
| /** |
| * Returns the number of columns contained in the receiver. |
| * If no <code>TreeColumn</code>s were created by the programmer, |
| * this value is zero, despite the fact that visually, one column |
| * of items may be visible. This occurs when the programmer uses |
| * the tree like a list, adding items but never creating a column. |
| * |
| * @return the number of columns |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.1 |
| */ |
| public int getColumnCount () { |
| checkWidget (); |
| return columnCount; |
| } |
| |
| /** |
| * Returns an array of zero-relative integers that map |
| * the creation order of the receiver's items to the |
| * order in which they are currently being displayed. |
| * <p> |
| * Specifically, the indices of the returned array represent |
| * the current visual order of the items, and the contents |
| * of the array represent the creation order of the items. |
| * </p><p> |
| * Note: This is not the actual structure used by the receiver |
| * to maintain its list of items, so modifying the array will |
| * not affect the receiver. |
| * </p> |
| * |
| * @return the current visual order of the receiver's items |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see Tree#setColumnOrder(int[]) |
| * @see TreeColumn#getMoveable() |
| * @see TreeColumn#setMoveable(boolean) |
| * @see SWT#Move |
| * |
| * @since 3.2 |
| */ |
| public int[] getColumnOrder () { |
| checkWidget (); |
| int [] order = new int [columnCount]; |
| for (int i=0; i<order.length; i++) order [i] = i; |
| for (int i = 0; i < order.length; i++) { |
| TreeColumn column = columns [i]; |
| int index = OS.IList_IndexOf (gvColumns, column.handle); |
| order [index] = i; |
| } |
| return order; |
| } |
| |
| /** |
| * Returns an array of <code>TreeColumn</code>s which are the |
| * columns in the receiver. Columns are returned in the order |
| * that they were created. If no <code>TreeColumn</code>s were |
| * created by the programmer, the array is empty, despite the fact |
| * that visually, one column of items may be visible. This occurs |
| * when the programmer uses the tree like a list, adding items but |
| * never creating a column. |
| * <p> |
| * Note: This is not the actual structure used by the receiver |
| * to maintain its list of items, so modifying the array will |
| * not affect the receiver. |
| * </p> |
| * |
| * @return the items in the receiver |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see Tree#getColumnOrder() |
| * @see Tree#setColumnOrder(int[]) |
| * @see TreeColumn#getMoveable() |
| * @see TreeColumn#setMoveable(boolean) |
| * @see SWT#Move |
| * |
| * @since 3.1 |
| */ |
| public TreeColumn [] getColumns () { |
| checkWidget (); |
| TreeColumn [] result = new TreeColumn [columnCount]; |
| for (int i = 0; i < result.length; i++) { |
| result [i] = columns [i]; |
| } |
| return result; |
| } |
| |
| /** |
| * Returns the item at the given, zero-relative index in the |
| * receiver. Throws an exception if the index is out of range. |
| * |
| * @param index the index of the item to return |
| * @return the item at the given index |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.1 |
| */ |
| public TreeItem getItem (int index) { |
| checkWidget (); |
| if (index < 0 || index >= itemCount) error (SWT.ERROR_INVALID_RANGE); |
| int items = OS.ItemsControl_Items (handle); |
| TreeItem treeItem = getItem (items, index, true); |
| OS.GCHandle_Free (items); |
| return treeItem; |
| } |
| |
| TreeItem getItem (int items, int index, boolean create) { |
| int item = OS.ItemCollection_GetItemAt (items, index); |
| TreeItem result = getItem (item, create); |
| OS.GCHandle_Free (item); |
| return result; |
| } |
| |
| TreeItem getItem (int item, boolean create) { |
| int tag = OS.FrameworkElement_Tag (item); |
| if (tag != 0) { |
| int contentValue = OS.IntPtr_ToInt32 (tag); |
| OS.GCHandle_Free (tag); |
| return (TreeItem) OS.JNIGetObject (contentValue); |
| } |
| if (create) { |
| int itemHandle = OS.GCHandle_Alloc (item); |
| int parentHandle = OS.FrameworkElement_Parent (item); |
| TreeItem parentItem = null; |
| if (!OS.Object_Equals (parentHandle, handle)) parentItem = (TreeItem) display.getWidget (parentHandle); |
| OS.GCHandle_Free (parentHandle); |
| return new TreeItem (this, parentItem, SWT.NONE, 0, itemHandle); |
| } |
| return null; |
| } |
| |
| /** |
| * Returns the item at the given point in the receiver |
| * or null if no such item exists. The point is in the |
| * coordinate system of the receiver. |
| * <p> |
| * The item that is returned represents an item that could be selected by the user. |
| * For example, if selection only occurs in items in the first column, then null is |
| * returned if the point is outside of the item. |
| * Note that the SWT.FULL_SELECTION style hint, which specifies the selection policy, |
| * determines the extent of the selection. |
| * </p> |
| * |
| * @param point the point used to locate the item |
| * @return the item at the given point, or null if the point is not in a selectable item |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the point is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public TreeItem getItem (Point point) { |
| checkWidget (); |
| if (point == null) error (SWT.ERROR_NULL_ARGUMENT); |
| int pt = OS.gcnew_Point (point.x, point.y); |
| int input = OS.UIElement_InputHitTest (handle, pt); |
| OS.GCHandle_Free (pt); |
| if (input == 0) return null; |
| Widget widget = display.getWidget (input); |
| OS.GCHandle_Free (input); |
| if (widget instanceof TreeItem) { |
| return (TreeItem) widget; |
| } |
| return null; |
| } |
| |
| /** |
| * Returns the number of items contained in the receiver |
| * that are direct item children of the receiver. The |
| * number that is returned is the number of roots in the |
| * tree. |
| * |
| * @return the number of items |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public int getItemCount () { |
| checkWidget (); |
| return itemCount; |
| } |
| |
| /** |
| * Returns the height of the area which would be used to |
| * display <em>one</em> of the items in the tree. |
| * |
| * @return the height of one item |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public int getItemHeight () { |
| checkWidget (); |
| //FIXME |
| if (itemCount == 0) return 16; |
| int items = OS.ItemsControl_Items (handle); |
| int item = OS.ItemCollection_GetItemAt (items, 0); |
| double height = OS.FrameworkElement_ActualHeight (item); |
| OS.GCHandle_Free (item); |
| OS.GCHandle_Free (items); |
| return height != 0 ? (int) height : 16; |
| } |
| |
| /** |
| * Returns a (possibly empty) array of items contained in the |
| * receiver that are direct item children of the receiver. These |
| * are the roots of the tree. |
| * <p> |
| * Note: This is not the actual structure used by the receiver |
| * to maintain its list of items, so modifying the array will |
| * not affect the receiver. |
| * </p> |
| * |
| * @return the items |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public TreeItem [] getItems () { |
| checkWidget (); |
| TreeItem [] result = new TreeItem [itemCount]; |
| int items = OS.ItemsControl_Items (handle); |
| for (int i = 0; i < itemCount; i++) { |
| result [i] = getItem (items, i, true); |
| } |
| OS.GCHandle_Free (items); |
| return result; |
| } |
| |
| /** |
| * Returns <code>true</code> if the receiver's lines are visible, |
| * and <code>false</code> otherwise. Note that some platforms draw |
| * grid lines while others may draw alternating row colors. |
| * <p> |
| * If one of the receiver's ancestors is not visible or some |
| * other condition makes the receiver not visible, this method |
| * may still indicate that it is considered visible even though |
| * it may not actually be showing. |
| * </p> |
| * |
| * @return the visibility state of the lines |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.1 |
| */ |
| public boolean getLinesVisible () { |
| checkWidget (); |
| //TODO |
| return false; |
| } |
| |
| /** |
| * Returns the receiver's parent item, which must be a |
| * <code>TreeItem</code> or null when the receiver is a |
| * root. |
| * |
| * @return the receiver's parent item |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public TreeItem getParentItem () { |
| checkWidget (); |
| return null; |
| } |
| |
| /** |
| * Returns an array of <code>TreeItem</code>s that are currently |
| * selected in the receiver. The order of the items is unspecified. |
| * An empty array indicates that no items are selected. |
| * <p> |
| * Note: This is not the actual structure used by the receiver |
| * to maintain its selection, so modifying the array will |
| * not affect the receiver. |
| * </p> |
| * @return an array representing the selection |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public TreeItem [] getSelection () { |
| checkWidget (); |
| TreeItem [] result; |
| if ((style & SWT.SINGLE) != 0) { |
| int item = OS.TreeView_SelectedItem (handle); |
| if (item == 0) return new TreeItem [0]; |
| result = new TreeItem [] { (TreeItem) display.getWidget (item) }; |
| OS.GCHandle_Free (item); |
| } else { |
| result = getSelectedItems (handle, new TreeItem [4], new int [1]); |
| } |
| return result; |
| } |
| |
| TreeItem[] getSelectedItems(int itemsControl, TreeItem [] selectedItems, int [] nextIndex) { |
| int items = OS.ItemsControl_Items (itemsControl); |
| int count = OS.ItemCollection_Count (items); |
| for (int i = 0; i < count; i++) { |
| int item = OS.ItemCollection_GetItemAt (items, i); |
| boolean selected = OS.TreeViewItem_IsSelected (item); |
| if (selected) { |
| if (nextIndex [0] == selectedItems.length) { |
| TreeItem [] newArray = new TreeItem [selectedItems.length + 4]; |
| System.arraycopy (selectedItems, 0, newArray, 0, selectedItems.length); |
| selectedItems = newArray; |
| } |
| selectedItems [nextIndex[0]++] = getItem (item, true); |
| } |
| if (OS.TreeViewItem_IsExpanded (item)) { |
| selectedItems = getSelectedItems (item, selectedItems, nextIndex); |
| } |
| OS.GCHandle_Free (item); |
| } |
| OS.GCHandle_Free (items); |
| if (selectedItems.length != nextIndex [0]) { |
| TreeItem[] newArray = new TreeItem [nextIndex[0]]; |
| System.arraycopy (selectedItems, 0, newArray, 0, nextIndex [0]); |
| selectedItems = newArray; |
| } |
| return selectedItems; |
| } |
| |
| /** |
| * Returns the number of selected items contained in the receiver. |
| * |
| * @return the number of selected items |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public int getSelectionCount () { |
| checkWidget (); |
| int result; |
| if ((style & SWT.SINGLE) != 0) { |
| int item = OS.TreeView_SelectedItem (handle); |
| result = item == 0 ? 0 : 1; |
| OS.GCHandle_Free (item); |
| } else { |
| TreeItem[] selectedItems = getSelectedItems(handle, new TreeItem[4], new int[] {0}); |
| result = selectedItems.length; |
| } |
| return result; |
| } |
| |
| /** |
| * Returns the column which shows the sort indicator for |
| * the receiver. The value may be null if no column shows |
| * the sort indicator. |
| * |
| * @return the sort indicator |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see #setSortColumn(TreeColumn) |
| * |
| * @since 3.2 |
| */ |
| public TreeColumn getSortColumn () { |
| checkWidget (); |
| //TODO |
| return null; |
| } |
| |
| /** |
| * Returns the direction of the sort indicator for the receiver. |
| * The value will be one of <code>UP</code>, <code>DOWN</code> |
| * or <code>NONE</code>. |
| * |
| * @return the sort direction |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see #setSortDirection(int) |
| * |
| * @since 3.2 |
| */ |
| public int getSortDirection () { |
| checkWidget (); |
| //TODO |
| return SWT.NONE; |
| } |
| |
| /** |
| * Returns the item which is currently at the top of the receiver. |
| * This item can change when items are expanded, collapsed, scrolled |
| * or new items are added or removed. |
| * |
| * @return the item at the top of the receiver |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 2.1 |
| */ |
| public TreeItem getTopItem () { |
| checkWidget (); |
| //TODO |
| return null; |
| } |
| |
| boolean hasItems () { |
| return true; |
| } |
| |
| void HandleChecked (int sender, int e) { |
| if (!checkEvent (e)) return; |
| if (ignoreSelection) return; |
| int origsource = OS.RoutedEventArgs_OriginalSource (e); |
| int typeid = OS.CheckBox_typeid (); |
| boolean isCheckBox = OS.Type_IsInstanceOfType (typeid, origsource); |
| OS.GCHandle_Free (typeid); |
| OS.GCHandle_Free (origsource); |
| if (!isCheckBox) return; |
| int source = OS.RoutedEventArgs_Source (e); |
| TreeItem item = (TreeItem) display.getWidget (source); |
| OS.GCHandle_Free (source); |
| if (item.grayed) { |
| int checkbox = item.findPart (0, CHECKBOX_PART_NAME); |
| if (checkbox != 0) { |
| OS.ToggleButton_IsCheckedNullSetter (checkbox); |
| OS.GCHandle_Free (checkbox); |
| } |
| } |
| item.checked = true; |
| item.updateCheck (); |
| Event event = new Event (); |
| event.item = item; |
| event.detail = SWT.CHECK; |
| sendEvent (SWT.Selection, event); |
| |
| } |
| |
| void HandleCollapsed (int sender, int e) { |
| if (!checkEvent (e)) return; |
| int source = OS.RoutedEventArgs_Source (e); |
| if (OS.ItemsControl_HasItems (source)) { |
| TreeItem item = (TreeItem) display.getWidget (source); |
| int items = OS.ItemsControl_Items (item.handle); |
| int count = OS.ItemCollection_Count (items); |
| boolean[] selecting = new boolean [] {false}; |
| for (int i = 0; i < count; i++) { |
| int child = OS.ItemCollection_GetItemAt (items, i); |
| fixSelection (child, null, null, selecting); |
| OS.GCHandle_Free (child); |
| } |
| OS.GCHandle_Free (items); |
| Event event = new Event (); |
| event.item = item; |
| sendEvent (SWT.Collapse, event); |
| } |
| OS.GCHandle_Free (source); |
| } |
| |
| void HandleExpanded (int sender, int e) { |
| if (!checkEvent (e)) return; |
| int source = OS.RoutedEventArgs_Source (e); |
| if (OS.ItemsControl_HasItems (source)) { |
| Event event = new Event (); |
| event.item = (TreeItem) display.getWidget (source); |
| sendEvent (SWT.Expand, event); |
| } |
| OS.GCHandle_Free (source); |
| } |
| |
| void HandlePreviewKeyDown (int sender, int e) { |
| super.HandlePreviewKeyDown (sender, e); |
| if (!checkEvent (e)) return; |
| int key = OS.KeyEventArgs_Key (e); |
| if (key == OS.Key_Return) { |
| int source = OS.RoutedEventArgs_OriginalSource (e); |
| Widget widget = display.getWidget (source); |
| OS.GCHandle_Free (source); |
| if (widget instanceof TreeItem) { |
| Event event = new Event (); |
| event.item = (TreeItem) widget; |
| postEvent (SWT.DefaultSelection, event); |
| } |
| } |
| if (key == OS.Key_RightShift || key == OS.Key_LeftShift) shiftDown = true; |
| if (key == OS.Key_RightCtrl || key == OS.Key_LeftCtrl) ctrlDown = true; |
| } |
| |
| void HandlePreviewKeyUp (int sender, int e) { |
| super.HandlePreviewKeyUp (sender, e); |
| if (!checkEvent (e)) return; |
| int key = OS.KeyEventArgs_Key (e); |
| if (key == OS.Key_RightShift || key == OS.Key_LeftShift) shiftDown = false; |
| if (key == OS.Key_RightCtrl || key == OS.Key_LeftCtrl) ctrlDown = false; |
| } |
| |
| void HandleLoaded (int sender, int e) { |
| if (!checkEvent (e)) return; |
| updateHeaderVisibility(); |
| } |
| |
| void HandlePreviewMouseDoubleClick (int sender, int e) { |
| if (!checkEvent (e)) return; |
| int source = OS.RoutedEventArgs_OriginalSource (e); |
| Widget widget = display.getWidget (source); |
| OS.GCHandle_Free (source); |
| if (widget instanceof TreeItem) { |
| Event event = new Event (); |
| event.item = (TreeItem) widget; |
| postEvent (SWT.DefaultSelection, event); |
| } |
| if (hooks (SWT.DefaultSelection)) OS.RoutedEventArgs_Handled(e, true); |
| } |
| |
| void HandlePreviewMouseDown (int sender, int e) { |
| super.HandlePreviewMouseDown (sender, e); |
| if (!checkEvent (e)) return; |
| if ((style & SWT.SINGLE) != 0) return; |
| int source = OS.RoutedEventArgs_Source (e); |
| Widget widget = display.getWidget (source); |
| OS.GCHandle_Free (source); |
| if (widget instanceof TreeItem) { |
| TreeItem item = (TreeItem) widget; |
| /* Check that content of item was clicked, not the expander */ |
| int point = OS.MouseEventArgs_GetPosition (e, item.contentHandle); |
| int input = OS.UIElement_InputHitTest (item.contentHandle, point); |
| OS.GCHandle_Free (point); |
| if (input != 0) { |
| OS.GCHandle_Free (input); |
| boolean rightClick = OS.MouseEventArgs_RightButton (e) == OS.MouseButtonState_Pressed; |
| if (rightClick && (ctrlDown || shiftDown)) return; |
| if (ctrlDown) { |
| boolean selected = OS.TreeViewItem_IsSelected (item.handle); |
| if (widget.equals (lastSelection)) { |
| OS.TreeViewItem_IsSelected (item.handle, !selected); |
| } else { |
| if (selected) unselect = item; |
| if (lastSelection != null && OS.TreeViewItem_IsSelected (lastSelection.handle)) reselect = lastSelection; |
| } |
| } |
| if (!shiftDown && !ctrlDown) { |
| boolean selected = OS.TreeViewItem_IsSelected (item.handle); |
| if (selected && rightClick) return; |
| deselectAll (); |
| OS.TreeViewItem_IsSelected (item.handle, true); |
| } |
| } |
| lastSelection = item; |
| } |
| } |
| |
| void HandleSelectedItemChanged (int sender, int e) { |
| if (!checkEvent (e)) return; |
| if (ignoreSelection) return; |
| int selectedItem = OS.TreeView_SelectedItem (handle); |
| if (selectedItem == 0) return; |
| TreeItem item = (TreeItem) display.getWidget (selectedItem); |
| OS.GCHandle_Free (selectedItem); |
| Event event = new Event (); |
| event.item = item; |
| postEvent (SWT.Selection, event); |
| } |
| |
| void HandleUnchecked (int sender, int e) { |
| if (!checkEvent (e)) return; |
| if (ignoreSelection) return; |
| int origsource = OS.RoutedEventArgs_OriginalSource (e); |
| int typeid = OS.CheckBox_typeid (); |
| boolean isCheckBox = OS.Type_IsInstanceOfType (typeid, origsource); |
| OS.GCHandle_Free (typeid); |
| OS.GCHandle_Free (origsource); |
| if (!isCheckBox) return; |
| int source = OS.RoutedEventArgs_Source (e); |
| TreeItem item = (TreeItem) display.getWidget (source); |
| OS.GCHandle_Free (source); |
| item.checked = false; |
| item.updateCheck (); |
| Event event = new Event (); |
| event.item = item; |
| event.detail = SWT.CHECK; |
| sendEvent (SWT.Selection, event); |
| } |
| |
| void hookEvents () { |
| super.hookEvents (); |
| int handler = OS.gcnew_RoutedEventHandler (jniRef, "HandleLoaded"); |
| if (handler == 0) error (SWT.ERROR_NO_HANDLES); |
| OS.FrameworkElement_Loaded (handle, handler); |
| OS.GCHandle_Free (handler); |
| handler = OS.gcnew_RoutedPropertyChangedEventHandlerObject (jniRef, "HandleSelectedItemChanged"); |
| if (handler == 0) error (SWT.ERROR_NO_HANDLES); |
| OS.TreeView_SelectedItemChanged (handle, handler); |
| OS.GCHandle_Free (handler); |
| handler = OS.gcnew_MouseButtonEventHandler (jniRef, "HandlePreviewMouseDoubleClick"); |
| if (handler == 0) error (SWT.ERROR_NO_HANDLES); |
| OS.Control_PreviewMouseDoubleClick (handle, handler); |
| OS.GCHandle_Free (handler); |
| |
| /* Item events */ |
| handler = OS.gcnew_RoutedEventHandler (jniRef, "HandleExpanded"); |
| if (handler == 0) error (SWT.ERROR_NO_HANDLES); |
| int event = OS.TreeViewItem_ExpandedEvent (); |
| OS.UIElement_AddHandler (handle, event, handler, false); |
| OS.GCHandle_Free (event); |
| OS.GCHandle_Free (handler); |
| handler = OS.gcnew_RoutedEventHandler (jniRef, "HandleCollapsed"); |
| if (handler == 0) error (SWT.ERROR_NO_HANDLES); |
| event = OS.TreeViewItem_CollapsedEvent (); |
| OS.UIElement_AddHandler (handle, event, handler, false); |
| OS.GCHandle_Free (event); |
| OS.GCHandle_Free (handler); |
| if ((style & SWT.CHECK) != 0) { |
| handler = OS.gcnew_RoutedEventHandler (jniRef, "HandleChecked"); |
| if (handler == 0) error (SWT.ERROR_NO_HANDLES); |
| event = OS.ToggleButton_CheckedEvent (); |
| OS.UIElement_AddHandler (handle, event, handler, false); |
| OS.GCHandle_Free (event); |
| OS.GCHandle_Free (handler); |
| handler = OS.gcnew_RoutedEventHandler (jniRef, "HandleUnchecked"); |
| if (handler == 0) error (SWT.ERROR_NO_HANDLES); |
| event = OS.ToggleButton_UncheckedEvent (); |
| OS.UIElement_AddHandler (handle, event, handler, false); |
| OS.GCHandle_Free (event); |
| OS.GCHandle_Free (handler); |
| } |
| } |
| |
| /** |
| * Searches the receiver's list starting at the first column |
| * (index 0) until a column is found that is equal to the |
| * argument, and returns the index of that column. If no column |
| * is found, returns -1. |
| * |
| * @param column the search column |
| * @return the index of the column |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the column is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.1 |
| */ |
| public int indexOf (TreeColumn column) { |
| checkWidget (); |
| if (column == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (gvColumns == 0) return -1; |
| int index = OS.GridViewColumnCollection_IndexOf (gvColumns, column.handle); |
| return index; |
| } |
| |
| /** |
| * 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 OnRender (int source, int dc) { |
| int type = OS.TreeViewItem_typeid (); |
| int itemHandle = findPartOfType (source, type); |
| OS.GCHandle_Free (type); |
| TreeItem item = getItem (itemHandle, true); |
| OS.GCHandle_Free (itemHandle); |
| if ((item.cached || (style & SWT.VIRTUAL) == 0) && item.contentHandle != 0) return; |
| checkData (item); |
| if (item.contentHandle == 0) { |
| item.contentHandle = item.findContentPresenter(); |
| } |
| int columns = columnCount == 0 ? 1 : columnCount; |
| item.updateCheck (); |
| for (int i=0; i<columns; i++) { |
| item.updateText (i); |
| item.updateImage (i); |
| item.updateBackground (i); |
| item.updateForeground (i); |
| item.updateFont (i); |
| } |
| } |
| |
| void OnSelectedItemChanged (int args) { |
| int newItemRef = OS.RoutedPropertyChangedEventArgs_NewValue (args); |
| TreeItem newItem = null; |
| if (newItemRef != 0) { |
| int unsetValue = OS.DependencyProperty_UnsetValue (); |
| if (!OS.Object_Equals (newItemRef, unsetValue)) newItem = getItem (newItemRef, false); |
| OS.GCHandle_Free (newItemRef); |
| OS.GCHandle_Free (unsetValue); |
| newItemRef = 0; |
| } |
| setIsSelectionActiveProperty (true); |
| if (!shiftDown && !ctrlDown) { |
| deselectAll (); |
| if (newItem != null) OS.TreeViewItem_IsSelected (newItem.handle, true); |
| anchor = newItem; |
| } else { |
| if (shiftDown) { |
| deselectAll (); |
| if (anchor == null || anchor == newItem) { |
| if (newItem != null) OS.TreeViewItem_IsSelected (newItem.handle, true); |
| anchor = newItem; |
| } else { |
| int zero = OS.gcnew_Point (0, 0); |
| int point = OS.UIElement_TranslatePoint (anchor.handle, zero, newItem.handle); |
| OS.GCHandle_Free (zero); |
| boolean down = OS.Point_Y (point) < 0; |
| OS.GCHandle_Free (point); |
| TreeItem from = down ? anchor : newItem; |
| TreeItem to = down ? newItem : anchor; |
| int items = OS.ItemsControl_Items (handle); |
| int itemCount = OS.ItemCollection_Count (items); |
| boolean[] selecting = new boolean[] {false}; |
| for (int i = 0; i < itemCount; i++) { |
| int item = OS.ItemCollection_GetItemAt(items, i); |
| fixSelection (item, from, to, selecting); |
| OS.GCHandle_Free (item); |
| } |
| OS.GCHandle_Free (items); |
| } |
| } else { |
| if (unselect != null) { |
| OS.TreeViewItem_IsSelected (unselect.handle, false); |
| unselect = null; |
| } |
| if (reselect != null) { |
| OS.TreeViewItem_IsSelected (reselect.handle, true); |
| reselect = null; |
| } |
| anchor = newItem; |
| } |
| } |
| setIsSelectionActiveProperty (false); |
| } |
| |
| private void fixSelection (int tvItem, TreeItem from, TreeItem to, boolean [] selecting) { |
| if (selecting [0]) { |
| OS.TreeViewItem_IsSelected (tvItem, true); |
| if (to != null && OS.Object_Equals (tvItem, to.handle)) selecting [0] = false; |
| } else { |
| if (from != null && OS.Object_Equals (tvItem, from.handle)) selecting [0] = true; |
| OS.TreeViewItem_IsSelected(tvItem, selecting [0]); |
| } |
| if (OS.TreeViewItem_IsExpanded (tvItem)) { |
| int items = OS.ItemsControl_Items (tvItem); |
| int itemCount = OS.ItemCollection_Count (items); |
| for (int i = 0; i < itemCount; i++) { |
| int tvChild = OS.ItemCollection_GetItemAt (items, i); |
| fixSelection (tvChild, from, to, selecting); |
| OS.GCHandle_Free (tvChild); |
| } |
| OS.GCHandle_Free (items); |
| } |
| } |
| |
| int parentingHandle () { |
| return parentingHandle; |
| } |
| |
| void register() { |
| super.register(); |
| display.addWidget (parentingHandle, this); |
| } |
| |
| void releaseChildren (boolean destroy) { |
| int items = OS.ItemsControl_Items (handle); |
| for (int i=0; i<itemCount; i++) { |
| TreeItem item = getItem (items, i, false); |
| if (item != null && !item.isDisposed ()) item.release (false); |
| } |
| OS.GCHandle_Free (items); |
| for (int i=0; i<columnCount; i++) { |
| TreeColumn column = columns [i]; |
| if (column != null && !column.isDisposed ()) { |
| column.release (false); |
| } |
| } |
| super.releaseChildren (destroy); |
| } |
| |
| void releaseHandle () { |
| super.releaseHandle (); |
| if (gvColumns != 0) OS.GCHandle_Free (gvColumns); |
| gvColumns = 0; |
| if (headerTemplate != 0) OS.GCHandle_Free (headerTemplate); |
| headerTemplate = 0; |
| OS.GCHandle_Free (parentingHandle); |
| parentingHandle = 0; |
| } |
| |
| void releaseWidget () { |
| super.releaseWidget (); |
| columns = null; |
| } |
| |
| /** |
| * Removes all of the items from the receiver. |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void removeAll () { |
| checkWidget (); |
| int items = OS.ItemsControl_Items (handle); |
| for (int i = 0; i < itemCount; i++) { |
| TreeItem item = getItem (items, i, false); |
| if (item != null && !item.isDisposed ()) item.release (false); |
| } |
| ignoreSelection = true; |
| OS.ItemCollection_Clear (items); |
| ignoreSelection = false; |
| itemCount = OS.ItemCollection_Count (items); |
| OS.GCHandle_Free (items); |
| } |
| |
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when the user changes the receiver's selection. |
| * |
| * @param listener the listener which should no longer be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see SelectionListener |
| * @see #addSelectionListener |
| */ |
| public void removeSelectionListener (SelectionListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| eventTable.unhook (SWT.Selection, listener); |
| eventTable.unhook (SWT.DefaultSelection, listener); |
| } |
| |
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when items in the receiver are expanded or collapsed. |
| * |
| * @param listener the listener which should no longer be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see TreeListener |
| * @see #addTreeListener |
| */ |
| public void removeTreeListener(TreeListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (eventTable == null) return; |
| eventTable.unhook (SWT.Expand, listener); |
| eventTable.unhook (SWT.Collapse, listener); |
| } |
| |
| void reskinChildren (int flags) { |
| if (itemCount > 0) { |
| int items = OS.ItemsControl_Items (handle); |
| for (int i = 0; i < itemCount; i++) { |
| TreeItem item = getItem (items, i, true); |
| if (item != null) item.reskinChildren (flags); |
| } |
| OS.GCHandle_Free (items); |
| } |
| if (columns != null) { |
| for (int i=0; i<columns.length; i++) { |
| TreeColumn column = columns [i]; |
| if (column != null) column.reskinChildren (flags); |
| } |
| } |
| super.reskinChildren (flags); |
| } |
| |
| int setBounds (int x, int y, int width, int height, int flags) { |
| int result = super.setBounds (x, y, width, height, flags); |
| if ((result & RESIZED) != 0) { |
| OS.FrameworkElement_Width (handle, width); |
| OS.FrameworkElement_Height (handle, height); |
| } |
| return result; |
| } |
| |
| /** |
| * Display a mark indicating the point at which an item will be inserted. |
| * The drop insert item has a visual hint to show where a dragged item |
| * will be inserted when dropped on the tree. |
| * |
| * @param item the insert item. Null will clear the insertion mark. |
| * @param before true places the insert mark above 'item'. false places |
| * the insert mark below 'item'. |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the item has been disposed</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setInsertMark (TreeItem item, boolean before) { |
| checkWidget (); |
| if (item != null && item.isDisposed ()) error (SWT.ERROR_INVALID_ARGUMENT); |
| //TODO |
| } |
| |
| /** |
| * Sets the number of root-level 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 (); |
| setItemCount (null, count); |
| } |
| |
| void setItemCount (TreeItem parentItem, int count) { |
| int itemCount = parentItem != null ? parentItem.itemCount : this.itemCount; |
| count = Math.max (0, count); |
| if (count == itemCount) return; |
| int parentHandle = parentItem != null ? parentItem.handle : handle; |
| int index = itemCount - 1; |
| int items = OS.ItemsControl_Items (parentHandle); |
| while (index >= count) { |
| TreeItem item = getItem (items, index, false); |
| if (item != null) { |
| if (!item.isDisposed()) item.release (true); |
| } else { |
| OS.ItemCollection_RemoveAt (items, index); |
| } |
| index--; |
| } |
| if (OS.ItemCollection_Count (items) > count) error (SWT.ERROR_ITEM_NOT_REMOVED); |
| if ((style & SWT.VIRTUAL) != 0) { |
| for (int i=itemCount; i<count; i++) { |
| int item = OS.gcnew_TreeViewItem (); |
| if (item == 0) error (SWT.ERROR_NO_HANDLES); |
| if (columnCount != 0) { |
| int headerHandle = OS.gcnew_SWTTreeViewRowPresenter (handle); |
| if (headerHandle == 0) error (SWT.ERROR_NO_HANDLES); |
| OS.GridViewRowPresenterBase_Columns (headerHandle, gvColumns); |
| OS.HeaderedItemsControl_Header (item, headerHandle); |
| OS.GCHandle_Free (headerHandle); |
| } else { |
| OS.TreeViewItem_HeaderTemplate (item, headerTemplate); |
| } |
| OS.ItemCollection_Add (items, item); |
| OS.GCHandle_Free (item); |
| } |
| } else { |
| for (int i=itemCount; i<count; i++) { |
| new TreeItem (this, parentItem, SWT.NONE, i, 0); |
| } |
| } |
| itemCount = OS.ItemCollection_Count (items); |
| OS.GCHandle_Free (items); |
| if (itemCount != count) error (SWT.ERROR_ITEM_NOT_ADDED); |
| if (parentItem != null) { |
| parentItem.itemCount = itemCount; |
| } else { |
| this.itemCount = itemCount; |
| } |
| } |
| |
| /** |
| * Sets the height of the area which would be used to |
| * display <em>one</em> of the items in the tree. |
| * |
| * @return the height of one item |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.2 |
| */ |
| /*public*/ void setItemHeight (int itemHeight) { |
| checkWidget (); |
| if (itemHeight < -1) error (SWT.ERROR_INVALID_ARGUMENT); |
| //TODO |
| } |
| |
| /** |
| * Marks the receiver's lines as visible if the argument is <code>true</code>, |
| * and marks it invisible otherwise. Note that some platforms draw |
| * grid lines while others may draw alternating row colors. |
| * <p> |
| * If one of the receiver's ancestors is not visible or some |
| * other condition makes the receiver not visible, marking |
| * it visible may not actually cause it to be displayed. |
| * </p> |
| * |
| * @param show the new visibility state |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.1 |
| */ |
| public void setLinesVisible (boolean show) { |
| checkWidget (); |
| //TODO |
| } |
| |
| /** |
| * Selects an item in the receiver. If the item was already |
| * selected, it remains selected. |
| * |
| * @param item the item to be selected |
| * |
| * @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 3.4 |
| */ |
| public void select (TreeItem item) { |
| if (item == null) SWT.error (SWT.ERROR_NULL_ARGUMENT); |
| if (item.isDisposed ()) SWT.error (SWT.ERROR_INVALID_ARGUMENT); |
| if ((style & SWT.SINGLE) != 0) { |
| ignoreSelection = true; |
| OS.TreeViewItem_IsSelected (item.handle, true); |
| ignoreSelection = false; |
| return; |
| } |
| |
| ignoreSelection = true; |
| setIsSelectionActiveProperty(true); |
| OS.TreeViewItem_IsSelected (item.handle, true); |
| setIsSelectionActiveProperty(false); |
| ignoreSelection = false; |
| } |
| |
| /** |
| * Selects all of the items in the receiver. |
| * <p> |
| * If the receiver is single-select, do nothing. |
| * </p> |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void selectAll () { |
| checkWidget (); |
| if ((style & SWT.SINGLE) != 0) return; |
| int items = OS.ItemsControl_Items (handle); |
| int itemCount = OS.ItemCollection_Count (items); |
| boolean[] selecting = new boolean[] {true}; |
| setIsSelectionActiveProperty(true); |
| for (int i = 0; i < itemCount; i++) { |
| int item = OS.ItemCollection_GetItemAt(items, i); |
| fixSelection(item, null, null, selecting); |
| OS.GCHandle_Free(item); |
| } |
| setIsSelectionActiveProperty(false); |
| OS.GCHandle_Free(items); |
| } |
| |
| /** |
| * Sets the order that the items in the receiver should |
| * be displayed in to the given argument which is described |
| * in terms of the zero-relative ordering of when the items |
| * were added. |
| * |
| * @param order the new order to display the items |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the item order is null</li> |
| * <li>ERROR_INVALID_ARGUMENT - if the item order is not the same length as the number of items</li> |
| * </ul> |
| * |
| * @see Tree#getColumnOrder() |
| * @see TreeColumn#getMoveable() |
| * @see TreeColumn#setMoveable(boolean) |
| * @see SWT#Move |
| * |
| * @since 3.2 |
| */ |
| public void setColumnOrder (int [] order) { |
| checkWidget (); |
| if (order == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (order.length != columnCount) error (SWT.ERROR_INVALID_ARGUMENT); |
| int [] oldOrder = getColumnOrder (); |
| boolean reorder = false; |
| boolean [] seen = new boolean [columnCount]; |
| for (int i=0; i<order.length; i++) { |
| int index = order [i]; |
| if (index < 0 || index >= columnCount) error (SWT.ERROR_INVALID_ARGUMENT); |
| if (seen [index]) error (SWT.ERROR_INVALID_ARGUMENT); |
| seen [index] = true; |
| if (order [i] != oldOrder [i]) reorder = true; |
| } |
| if (!reorder) return; |
| for (int i = 0; i < order.length; i++) { |
| TreeColumn column = columns [order [i]]; |
| int index = OS.IList_IndexOf (gvColumns, column.handle); |
| if (index != i) OS.ObservableCollectionGridViewColumn_Move (gvColumns, index, i); |
| } |
| } |
| |
| void setFont (int font, double size) { |
| if (font != 0) { |
| int fontFamily = OS.Typeface_FontFamily( font); |
| int style = OS.Typeface_Style (font); |
| int weight = OS.Typeface_Weight (font); |
| int stretch = OS.Typeface_Stretch (font); |
| OS.Control_FontFamily (handle, fontFamily); |
| OS.Control_FontStyle (handle, style); |
| OS.Control_FontWeight (handle, weight); |
| OS.Control_FontStretch (handle, stretch); |
| OS.Control_FontSize (handle, size); |
| OS.GCHandle_Free (fontFamily); |
| OS.GCHandle_Free (style); |
| OS.GCHandle_Free (weight); |
| OS.GCHandle_Free (stretch); |
| } 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_FontWeightProperty (); |
| 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_FontSizeProperty (); |
| OS.DependencyObject_ClearValue (handle, property); |
| OS.GCHandle_Free (property); |
| } |
| } |
| |
| void setForegroundBrush (int brush) { |
| if (brush != 0) { |
| OS.Control_Foreground (handle, brush); |
| } else { |
| int property = OS.Control_ForegroundProperty (); |
| OS.DependencyObject_ClearValue (handle, property); |
| OS.GCHandle_Free (property); |
| } |
| } |
| |
| /** |
| * Marks the receiver's header as visible if the argument is <code>true</code>, |
| * and marks it invisible otherwise. |
| * <p> |
| * If one of the receiver's ancestors is not visible or some |
| * other condition makes the receiver not visible, marking |
| * it visible may not actually cause it to be displayed. |
| * </p> |
| * |
| * @param show the new visibility state |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.1 |
| */ |
| public void setHeaderVisible (boolean show) { |
| checkWidget (); |
| headerVisibility = show ? OS.Visibility_Visible : OS.Visibility_Collapsed; |
| updateHeaderVisibility (); |
| for (int i=0; i<columnCount; i++) { |
| TreeColumn column = getColumn(i); |
| column.updateImage (); |
| column.updateText (); |
| } |
| } |
| |
| void setIsSelectionActiveProperty(boolean active) { |
| int treeType = OS.Object_GetType (handle); |
| int propertyName = createDotNetString ("IsSelectionChangeActive", false); |
| int property = OS.Type_GetProperty (treeType, propertyName, OS.BindingFlags_Instance | OS.BindingFlags_NonPublic); |
| OS.GCHandle_Free (treeType); |
| OS.GCHandle_Free (propertyName); |
| OS.PropertyInfo_SetValueBoolean (property, handle, active, 0); |
| OS.GCHandle_Free (property); |
| } |
| |
| /** |
| * Sets the receiver's selection to the given item. |
| * The current selection is cleared before the new item is selected. |
| * <p> |
| * If the item is not in the receiver, then it is ignored. |
| * </p> |
| * |
| * @param item the item to select |
| * |
| * @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 3.2 |
| */ |
| public void setSelection (TreeItem item) { |
| checkWidget (); |
| if (item == null) error (SWT.ERROR_NULL_ARGUMENT); |
| setSelection (new TreeItem [] {item}); |
| } |
| |
| /** |
| * Sets the receiver's selection to be the given array of items. |
| * The current selection is cleared before the new items are selected. |
| * <p> |
| * Items that are not in the receiver are ignored. |
| * If the receiver is single-select and multiple items are specified, |
| * then all items are ignored. |
| * </p> |
| * |
| * @param items the array of items |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the array of items is null</li> |
| * <li>ERROR_INVALID_ARGUMENT - if one of the items has been disposed</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see Tree#deselectAll() |
| */ |
| public void setSelection (TreeItem [] items) { |
| checkWidget (); |
| if (items == null) error (SWT.ERROR_NULL_ARGUMENT); |
| int length = items.length; |
| if (length == 0 || ((style & SWT.SINGLE) != 0 && length > 1)) { |
| deselectAll (); |
| return; |
| } |
| for (int i = 0; i < items.length; i++) { |
| TreeItem item = items [i]; |
| if (item != null && item.isDisposed ()) error (SWT.ERROR_WIDGET_DISPOSED); |
| } |
| deselectAll (); |
| ignoreSelection = true; |
| if ((style & SWT.SINGLE) != 0) { |
| TreeItem select = items [0]; |
| if (select != null) { |
| OS.TreeViewItem_IsSelected (items [0].handle, true); |
| } |
| } else { |
| setIsSelectionActiveProperty (true); |
| for (int i = 0; i < length; i++) { |
| TreeItem item = items [i]; |
| if (item != null) OS.TreeViewItem_IsSelected (item.handle, true); |
| } |
| setIsSelectionActiveProperty (false); |
| } |
| ignoreSelection = false; |
| } |
| |
| /** |
| * Sets the column used by the sort indicator for the receiver. A null |
| * value will clear the sort indicator. The current sort column is cleared |
| * before the new column is set. |
| * |
| * @param column the column used by the sort indicator or <code>null</code> |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the column is disposed</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.2 |
| */ |
| public void setSortColumn (TreeColumn column) { |
| checkWidget (); |
| //TODO |
| } |
| |
| /** |
| * Sets the direction of the sort indicator for the receiver. The value |
| * can be one of <code>UP</code>, <code>DOWN</code> or <code>NONE</code>. |
| * |
| * @param direction the direction of the sort indicator |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.2 |
| */ |
| public void setSortDirection (int direction) { |
| checkWidget (); |
| //TODO |
| } |
| |
| /** |
| * Sets the item which is currently at the top of the receiver. |
| * This item can change when items are expanded, collapsed, scrolled |
| * or new items are added or removed. |
| * |
| * @param item the item to be shown |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the item is null</li> |
| * <li>ERROR_INVALID_ARGUMENT - if the item has been disposed</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see Tree#getTopItem() |
| * |
| * @since 2.1 |
| */ |
| public void setTopItem (TreeItem item) { |
| checkWidget (); |
| if (item == null) SWT.error (SWT.ERROR_NULL_ARGUMENT); |
| if (item.isDisposed ()) SWT.error (SWT.ERROR_INVALID_ARGUMENT); |
| //TODO |
| } |
| |
| /** |
| * Shows the column. If the column is already showing in the receiver, |
| * this method simply returns. Otherwise, the columns are scrolled until |
| * the column is visible. |
| * |
| * @param column the column to be shown |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the item is null</li> |
| * <li>ERROR_INVALID_ARGUMENT - if the item has been disposed</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.1 |
| */ |
| public void showColumn (TreeColumn column) { |
| checkWidget (); |
| if (column == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (column.isDisposed ()) error (SWT.ERROR_INVALID_ARGUMENT); |
| if (column.parent != this) return; |
| int index = indexOf (column); |
| if (index == -1) return; |
| //TODO |
| } |
| |
| /** |
| * Shows the item. If the item is already showing in the receiver, |
| * this method simply returns. Otherwise, the items are scrolled |
| * and expanded until the item is visible. |
| * |
| * @param item the item to be shown |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the item is null</li> |
| * <li>ERROR_INVALID_ARGUMENT - if the item has been disposed</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see Tree#showSelection() |
| */ |
| public void showItem (TreeItem item) { |
| checkWidget (); |
| if (item == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (item.isDisposed ()) error (SWT.ERROR_INVALID_ARGUMENT); |
| if (item.parent != this) return; |
| int parent = OS.FrameworkElement_Parent (item.handle); |
| while (!OS.Object_Equals (parent, handle)) { |
| OS.TreeViewItem_IsExpanded (parent, true); |
| int newParent = OS.FrameworkElement_Parent (parent); |
| OS.GCHandle_Free (parent); |
| parent = newParent; |
| } |
| OS.GCHandle_Free (parent); |
| OS.FrameworkElement_BringIntoView (item.handle); |
| } |
| |
| /** |
| * Shows the selection. If the selection is already showing in the receiver, |
| * this method simply returns. Otherwise, the items are scrolled until |
| * the selection is visible. |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see Tree#showItem(TreeItem) |
| */ |
| public void showSelection () { |
| checkWidget (); |
| int item = OS.TreeView_SelectedItem (handle); |
| if (item != 0) { |
| OS.FrameworkElement_BringIntoView (item); |
| OS.GCHandle_Free (item); |
| } |
| } |
| |
| int topHandle () { |
| return parentingHandle; |
| } |
| |
| void updateHeaderVisibility() { |
| int template = OS.Control_Template (handle); |
| int scrollViewerName = createDotNetString (SCROLLVIEWER_PART_NAME, false); |
| int scrollViewer = OS.FrameworkTemplate_FindName (template, scrollViewerName, handle); |
| if (scrollViewer != 0) { |
| int scrollViewerTemplate = OS.Control_Template(scrollViewer); |
| int headerName = createDotNetString(HEADER_PART_NAME, false); |
| int header = OS.FrameworkTemplate_FindName (scrollViewerTemplate, headerName, scrollViewer); |
| if (header != 0) { |
| OS.UIElement_Visibility (header, headerVisibility); |
| OS.GCHandle_Free (header); |
| } |
| OS.GCHandle_Free (scrollViewerTemplate); |
| OS.GCHandle_Free (headerName); |
| OS.GCHandle_Free (scrollViewer); |
| } |
| OS.GCHandle_Free (scrollViewerName); |
| OS.GCHandle_Free (template); |
| } |
| |
| } |