projects/dwt2: org.eclipse.jface/src/org/eclipse/jface/viewers/CheckboxTreeViewer.d annotate

author	Frank Benoit <benoit@tionex.de>
date	Sat, 14 Mar 2009 18:23:29 +0100
parents
children

rev	line source
12 bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	1 /*******************************************************************************
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	2 * Copyright (c) 2000, 2008 IBM Corporation and others.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	3 * All rights reserved. This program and the accompanying materials
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	4 * are made available under the terms of the Eclipse Public License v1.0
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	5 * which accompanies this distribution, and is available at
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	6 * http://www.eclipse.org/legal/epl-v10.html
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	7 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	8 * Contributors:
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	9 * IBM Corporation - initial API and implementation
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	10 * Port to the D programming language:
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	11 * Frank Benoit <benoit@tionex.de>
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	12 *******************************************************************************/
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	13 module org.eclipse.jface.viewers.CheckboxTreeViewer;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	14
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	15 import org.eclipse.jface.viewers.TreeViewer;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	16 import org.eclipse.jface.viewers.ICheckable;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	17 import org.eclipse.jface.viewers.ICheckStateListener;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	18 import org.eclipse.jface.viewers.CustomHashtable;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	19 import org.eclipse.jface.viewers.CheckStateChangedEvent;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	20
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	21
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	22 import org.eclipse.swt.SWT;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	23 import org.eclipse.swt.events.SelectionEvent;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	24 import org.eclipse.swt.widgets.Composite;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	25 import org.eclipse.swt.widgets.Control;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	26 import org.eclipse.swt.widgets.Item;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	27 import org.eclipse.swt.widgets.Tree;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	28 import org.eclipse.swt.widgets.TreeItem;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	29 import org.eclipse.swt.widgets.Widget;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	30 import org.eclipse.core.runtime.Assert;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	31 import org.eclipse.core.runtime.ListenerList;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	32 import org.eclipse.jface.util.SafeRunnable;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	33
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	34 import java.lang.all;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	35 import java.util.List;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	36 import java.util.ArrayList;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	37 import java.util.Set;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	38
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	39 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	40 * A concrete tree-structured viewer based on an SWT <code>Tree</code>
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	41 * control with checkboxes on each node.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	42 * <p>
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	43 * This class is not intended to be subclassed outside the viewer framework.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	44 * It is designed to be instantiated with a pre-existing SWT tree control and configured
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	45 * with a domain-specific content provider, label provider, element filter (optional),
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	46 * and element sorter (optional).
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	47 * </p>
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	48 * @noextend This class is not intended to be subclassed by clients.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	49 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	50 public class CheckboxTreeViewer : TreeViewer, ICheckable {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	51 alias TreeViewer.preservingSelection preservingSelection;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	52
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	53 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	54 * List of check state listeners (element type: <code>ICheckStateListener</code>).
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	55 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	56 private ListenerList checkStateListeners;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	57
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	58 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	59 * Last item clicked on, or <code>null</code> if none.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	60 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	61 private TreeItem lastClickedItem = null;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	62
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	63 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	64 * Creates a tree viewer on a newly-created tree control under the given parent.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	65 * The tree control is created using the SWT style bits: <code>CHECK</code> and <code>BORDER</code>.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	66 * The viewer has no input, no content provider, a default label provider,
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	67 * no sorter, and no filters.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	68 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	69 * @param parent the parent control
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	70 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	71 public this(Composite parent) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	72 this(parent, SWT.BORDER);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	73 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	74
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	75 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	76 * Creates a tree viewer on a newly-created tree control under the given parent.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	77 * The tree control is created using the given SWT style bits, plus the <code>CHECK</code> style bit.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	78 * The viewer has no input, no content provider, a default label provider,
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	79 * no sorter, and no filters.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	80 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	81 * @param parent the parent control
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	82 * @param style the SWT style bits
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	83 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	84 public this(Composite parent, int style) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	85 this(new Tree(parent, SWT.CHECK \| style));
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	86 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	87
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	88 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	89 * Creates a tree viewer on the given tree control.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	90 * The <code>SWT.CHECK</code> style bit must be set on the given tree control.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	91 * The viewer has no input, no content provider, a default label provider,
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	92 * no sorter, and no filters.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	93 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	94 * @param tree the tree control
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	95 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	96 public this(Tree tree) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	97 checkStateListeners = new ListenerList();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	98 super(tree);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	99 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	100
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	101 /* (non-Javadoc)
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	102 * Method declared on ICheckable.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	103 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	104 public void addCheckStateListener(ICheckStateListener listener) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	105 checkStateListeners.add(cast(Object)listener);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	106 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	107
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	108 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	109 * Applies the checked and grayed states of the given widget and its
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	110 * descendents.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	111 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	112 * @param checked a set of elements (element type: <code>Object</code>)
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	113 * @param grayed a set of elements (element type: <code>Object</code>)
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	114 * @param widget the widget
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	115 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	116 private void applyState(CustomHashtable checked, CustomHashtable grayed,
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	117 Widget widget) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	118 Item[] items = getChildren(widget);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	119 for (int i = 0; i < items.length; i++) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	120 Item item = items[i];
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	121 if ( auto ti = cast(TreeItem) item ) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	122 Object data = item.getData();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	123 if (data !is null) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	124 ti.setChecked(checked.containsKey(data));
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	125 ti.setGrayed(grayed.containsKey(data));
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	126 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	127 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	128 applyState(checked, grayed, item);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	129 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	130 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	131
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	132 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	133 * Notifies any check state listeners that the check state of an element has changed.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	134 * Only listeners registered at the time this method is called are notified.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	135 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	136 * @param event a check state changed event
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	137 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	138 * @see ICheckStateListener#checkStateChanged
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	139 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	140 protected void fireCheckStateChanged(CheckStateChangedEvent event) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	141 Object[] array = checkStateListeners.getListeners();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	142 for (int i = 0; i < array.length; i++) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	143 SafeRunnable.run( dgSafeRunnable( (ICheckStateListener l){
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	144 l.checkStateChanged(event);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	145 }, cast(ICheckStateListener) array[i]));
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	146 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	147
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	148 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	149
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	150 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	151 * Gathers the checked and grayed states of the given widget and its
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	152 * descendents.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	153 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	154 * @param checked a writable set of elements (element type: <code>Object</code>)
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	155 * @param grayed a writable set of elements (element type: <code>Object</code>)
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	156 * @param widget the widget
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	157 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	158 private void gatherState(CustomHashtable checked, CustomHashtable grayed,
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	159 Widget widget) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	160 Item[] items = getChildren(widget);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	161 for (int i = 0; i < items.length; i++) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	162 Item item = items[i];
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	163 if ( auto ti = cast(TreeItem) item ) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	164 Object data = item.getData();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	165 if (data !is null) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	166 if (ti.getChecked()) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	167 checked.put(data, data);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	168 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	169 if (ti.getGrayed()) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	170 grayed.put(data, data);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	171 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	172 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	173 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	174 gatherState(checked, grayed, item);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	175 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	176 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	177
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	178 /* (non-Javadoc)
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	179 * Method declared on ICheckable.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	180 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	181 public bool getChecked(Object element) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	182 Widget widget = findItem(element);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	183 if ( auto ti = cast(TreeItem) widget ) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	184 return ti.getChecked();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	185 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	186 return false;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	187 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	188
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	189 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	190 * Returns a list of checked elements in this viewer's tree,
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	191 * including currently hidden ones that are marked as
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	192 * checked but are under a collapsed ancestor.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	193 * <p>
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	194 * This method is typically used when preserving the interesting
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	195 * state of a viewer; <code>setCheckedElements</code> is used during the restore.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	196 * </p>
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	197 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	198 * @return the array of checked elements
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	199 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	200 * @see #setCheckedElements
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	201 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	202 public Object[] getCheckedElements() {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	203 ArrayList v = new ArrayList();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	204 Control tree = getControl();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	205 internalCollectChecked(v, tree);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	206 return v.toArray();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	207 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	208
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	209 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	210 * Returns the grayed state of the given element.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	211 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	212 * @param element the element
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	213 * @return <code>true</code> if the element is grayed,
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	214 * and <code>false</code> if not grayed
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	215 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	216 public bool getGrayed(Object element) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	217 Widget widget = findItem(element);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	218 if ( auto ti = cast(TreeItem) widget ) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	219 return ti.getGrayed();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	220 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	221 return false;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	222 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	223
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	224 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	225 * Returns a list of grayed elements in this viewer's tree,
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	226 * including currently hidden ones that are marked as
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	227 * grayed but are under a collapsed ancestor.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	228 * <p>
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	229 * This method is typically used when preserving the interesting
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	230 * state of a viewer; <code>setGrayedElements</code> is used during the restore.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	231 * </p>
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	232 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	233 * @return the array of grayed elements
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	234 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	235 * @see #setGrayedElements
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	236 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	237 public Object[] getGrayedElements() {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	238 List result = new ArrayList();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	239 internalCollectGrayed(result, getControl());
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	240 return result.toArray();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	241 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	242
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	243 /* (non-Javadoc)
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	244 * Method declared on StructuredViewer.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	245 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	246 protected override void handleDoubleSelect(SelectionEvent event) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	247
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	248 if (lastClickedItem !is null) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	249 TreeItem item = lastClickedItem;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	250 Object data = item.getData();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	251 if (data !is null) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	252 bool state = item.getChecked();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	253 setChecked(data, !state);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	254 fireCheckStateChanged(new CheckStateChangedEvent(this, data,
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	255 !state));
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	256 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	257 lastClickedItem = null;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	258 } else {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	259 super.handleDoubleSelect(event);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	260 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	261 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	262
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	263 /* (non-Javadoc)
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	264 * Method declared on StructuredViewer.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	265 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	266 protected override void handleSelect(SelectionEvent event) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	267
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	268 lastClickedItem = null;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	269 if (event.detail is SWT.CHECK) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	270 TreeItem item = cast(TreeItem) event.item;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	271 lastClickedItem = item;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	272 super.handleSelect(event);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	273
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	274 Object data = item.getData();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	275 if (data !is null) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	276 fireCheckStateChanged(new CheckStateChangedEvent(this, data,
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	277 item.getChecked()));
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	278 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	279 } else {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	280 super.handleSelect(event);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	281 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	282 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	283
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	284 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	285 * Gathers the checked states of the given widget and its
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	286 * descendents, following a pre-order traversal of the tree.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	287 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	288 * @param result a writable list of elements (element type: <code>Object</code>)
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	289 * @param widget the widget
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	290 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	291 private void internalCollectChecked(List result, Widget widget) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	292 Item[] items = getChildren(widget);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	293 for (int i = 0; i < items.length; i++) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	294 Item item = items[i];
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	295 if ( null !is cast(TreeItem)item && (cast(TreeItem) item).getChecked()) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	296 Object data = item.getData();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	297 if (data !is null) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	298 result.add(data);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	299 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	300 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	301 internalCollectChecked(result, item);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	302 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	303 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	304
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	305 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	306 * Gathers the grayed states of the given widget and its
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	307 * descendents, following a pre-order traversal of the tree.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	308 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	309 * @param result a writable list of elements (element type: <code>Object</code>)
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	310 * @param widget the widget
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	311 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	312 private void internalCollectGrayed(List result, Widget widget) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	313 Item[] items = getChildren(widget);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	314 for (int i = 0; i < items.length; i++) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	315 Item item = items[i];
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	316 if (null !is cast(TreeItem)item && (cast(TreeItem) item).getGrayed()) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	317 Object data = item.getData();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	318 if (data !is null) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	319 result.add(data);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	320 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	321 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	322 internalCollectGrayed(result, item);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	323 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	324 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	325
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	326 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	327 * Sets the checked state of all items to correspond to the given set of checked elements.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	328 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	329 * @param checkedElements the set (element type: <code>Object</code>) of elements which are checked
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	330 * @param widget the widget
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	331 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	332 private void internalSetChecked(CustomHashtable checkedElements,
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	333 Widget widget) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	334 Item[] items = getChildren(widget);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	335 for (int i = 0; i < items.length; i++) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	336 TreeItem item = cast(TreeItem) items[i];
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	337 Object data = item.getData();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	338 if (data !is null) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	339 bool checked = checkedElements.containsKey(data);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	340 if (checked !is item.getChecked()) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	341 item.setChecked(checked);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	342 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	343 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	344 internalSetChecked(checkedElements, item);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	345 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	346 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	347
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	348 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	349 * Sets the grayed state of all items to correspond to the given set of grayed elements.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	350 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	351 * @param grayedElements the set (element type: <code>Object</code>) of elements which are grayed
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	352 * @param widget the widget
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	353 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	354 private void internalSetGrayed(CustomHashtable grayedElements, Widget widget) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	355 Item[] items = getChildren(widget);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	356 for (int i = 0; i < items.length; i++) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	357 TreeItem item = cast(TreeItem) items[i];
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	358 Object data = item.getData();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	359 if (data !is null) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	360 bool grayed = grayedElements.containsKey(data);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	361 if (grayed !is item.getGrayed()) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	362 item.setGrayed(grayed);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	363 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	364 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	365 internalSetGrayed(grayedElements, item);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	366 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	367 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	368
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	369 /* (non-Javadoc)
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	370 * Method declared on Viewer.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	371 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	372 protected override void preservingSelection(Runnable updateCode) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	373
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	374 int n = getItemCount(getControl());
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	375 CustomHashtable checkedNodes = newHashtable(n * 2 + 1);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	376 CustomHashtable grayedNodes = newHashtable(n * 2 + 1);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	377
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	378 gatherState(checkedNodes, grayedNodes, getControl());
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	379
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	380 super.preservingSelection(updateCode);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	381
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	382 applyState(checkedNodes, grayedNodes, getControl());
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	383 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	384
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	385 /* (non-Javadoc)
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	386 * Method declared on ICheckable.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	387 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	388 public void removeCheckStateListener(ICheckStateListener listener) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	389 checkStateListeners.remove(cast(Object)listener);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	390 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	391
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	392 /* (non-Javadoc)
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	393 * Method declared on ICheckable.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	394 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	395 public bool setChecked(Object element, bool state) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	396 Assert.isNotNull(element);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	397 Widget widget = internalExpand(element, false);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	398 if ( auto ti = cast(TreeItem) widget ) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	399 ti.setChecked(state);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	400 return true;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	401 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	402 return false;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	403 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	404
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	405 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	406 * Sets the checked state for the children of the given item.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	407 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	408 * @param item the item
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	409 * @param state <code>true</code> if the item should be checked,
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	410 * and <code>false</code> if it should be unchecked
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	411 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	412 private void setCheckedChildren(Item item, bool state) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	413 createChildren(item);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	414 Item[] items = getChildren(item);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	415 if (items !is null) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	416 for (int i = 0; i < items.length; i++) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	417 Item it = items[i];
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	418 if (it.getData() !is null && (null !is cast(TreeItem)it )) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	419 TreeItem treeItem = cast(TreeItem) it;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	420 treeItem.setChecked(state);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	421 setCheckedChildren(treeItem, state);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	422 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	423 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	424 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	425 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	426
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	427 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	428 * Sets which elements are checked in this viewer's tree.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	429 * The given list contains the elements that are to be checked;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	430 * all other elements are to be unchecked.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	431 * Does not fire events to check state listeners.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	432 * <p>
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	433 * This method is typically used when restoring the interesting
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	434 * state of a viewer captured by an earlier call to <code>getCheckedElements</code>.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	435 * </p>
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	436 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	437 * @param elements the array of checked elements
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	438 * @see #getCheckedElements
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	439 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	440 public void setCheckedElements(Object[] elements) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	441 assertElementsNotNull(elements);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	442 CustomHashtable checkedElements = newHashtable(elements.length * 2 + 1);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	443 for (int i = 0; i < elements.length; ++i) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	444 Object element = elements[i];
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	445 // Ensure item exists for element
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	446 internalExpand(element, false);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	447 checkedElements.put(element, element);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	448 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	449 Control tree = getControl();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	450 tree.setRedraw(false);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	451 internalSetChecked(checkedElements, tree);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	452 tree.setRedraw(true);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	453 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	454
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	455 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	456 * Sets the grayed state for the given element in this viewer.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	457 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	458 * @param element the element
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	459 * @param state <code>true</code> if the item should be grayed,
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	460 * and <code>false</code> if it should be ungrayed
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	461 * @return <code>true</code> if the gray state could be set,
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	462 * and <code>false</code> otherwise
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	463 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	464 public bool setGrayed(Object element, bool state) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	465 Assert.isNotNull(element);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	466 Widget widget = internalExpand(element, false);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	467 if ( auto ti = cast(TreeItem) widget ) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	468 ti.setGrayed(state);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	469 return true;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	470 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	471 return false;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	472 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	473
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	474 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	475 * Check and gray the selection rather than calling both
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	476 * setGrayed and setChecked as an optimization.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	477 * Does not fire events to check state listeners.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	478 * @param element the item being checked
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	479 * @param state a bool indicating selection or deselection
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	480 * @return bool indicating success or failure.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	481 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	482 public bool setGrayChecked(Object element, bool state) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	483 Assert.isNotNull(element);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	484 Widget widget = internalExpand(element, false);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	485 if (auto item = cast(TreeItem)widget ) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	486 item.setChecked(state);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	487 item.setGrayed(state);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	488 return true;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	489 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	490 return false;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	491 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	492
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	493 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	494 * Sets which elements are grayed in this viewer's tree.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	495 * The given list contains the elements that are to be grayed;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	496 * all other elements are to be ungrayed.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	497 * <p>
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	498 * This method is typically used when restoring the interesting
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	499 * state of a viewer captured by an earlier call to <code>getGrayedElements</code>.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	500 * </p>

12

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1 /*******************************************************************************

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4 * are made available under the terms of the Eclipse Public License v1.0

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5 * which accompanies this distribution, and is available at

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6 * http://www.eclipse.org/legal/epl-v10.html

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7 *

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8 * Contributors:

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9 * IBM Corporation - initial API and implementation

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10 * Port to the D programming language:

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11 * Frank Benoit <benoit@tionex.de>

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12 *******************************************************************************/

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13 module org.eclipse.jface.viewers.CheckboxTreeViewer;

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14

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15 import org.eclipse.jface.viewers.TreeViewer;

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16 import org.eclipse.jface.viewers.ICheckable;

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17 import org.eclipse.jface.viewers.ICheckStateListener;

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18 import org.eclipse.jface.viewers.CustomHashtable;

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19 import org.eclipse.jface.viewers.CheckStateChangedEvent;

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20

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21

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22 import org.eclipse.swt.SWT;

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23 import org.eclipse.swt.events.SelectionEvent;

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24 import org.eclipse.swt.widgets.Composite;

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25 import org.eclipse.swt.widgets.Control;

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26 import org.eclipse.swt.widgets.Item;

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27 import org.eclipse.swt.widgets.Tree;

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28 import org.eclipse.swt.widgets.TreeItem;

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29 import org.eclipse.swt.widgets.Widget;

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30 import org.eclipse.core.runtime.Assert;

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31 import org.eclipse.core.runtime.ListenerList;

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32 import org.eclipse.jface.util.SafeRunnable;

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33

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34 import java.lang.all;

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35 import java.util.List;

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36 import java.util.ArrayList;

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37 import java.util.Set;

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38

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39 /**

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40 * A concrete tree-structured viewer based on an SWT <code>Tree</code>

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41 * control with checkboxes on each node.

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42 *

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43 * This class is not intended to be subclassed outside the viewer framework.

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44 * It is designed to be instantiated with a pre-existing SWT tree control and configured

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45 * with a domain-specific content provider, label provider, element filter (optional),

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46 * and element sorter (optional).

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47 *

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48 * @noextend This class is not intended to be subclassed by clients.

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49 */

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50 public class CheckboxTreeViewer : TreeViewer, ICheckable {

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51 alias TreeViewer.preservingSelection preservingSelection;

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52

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53 /**

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54 * List of check state listeners (element type: <code>ICheckStateListener</code>).

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55 */

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56 private ListenerList checkStateListeners;

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57

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58 /**

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59 * Last item clicked on, or <code>null</code> if none.

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60 */

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61 private TreeItem lastClickedItem = null;

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62

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63 /**

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64 * Creates a tree viewer on a newly-created tree control under the given parent.

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65 * The tree control is created using the SWT style bits: <code>CHECK</code> and <code>BORDER</code>.

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66 * The viewer has no input, no content provider, a default label provider,

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67 * no sorter, and no filters.

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68 *

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69 * @param parent the parent control

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70 */

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71 public this(Composite parent) {

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72 this(parent, SWT.BORDER);

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73 }

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74

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75 /**

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76 * Creates a tree viewer on a newly-created tree control under the given parent.

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77 * The tree control is created using the given SWT style bits, plus the <code>CHECK</code> style bit.

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78 * The viewer has no input, no content provider, a default label provider,

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79 * no sorter, and no filters.

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80 *

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81 * @param parent the parent control

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82 * @param style the SWT style bits

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83 */

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84 public this(Composite parent, int style) {

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85 this(new Tree(parent, SWT.CHECK | style));

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86 }

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87

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88 /**

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89 * Creates a tree viewer on the given tree control.

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90 * The <code>SWT.CHECK</code> style bit must be set on the given tree control.

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91 * The viewer has no input, no content provider, a default label provider,

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92 * no sorter, and no filters.

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93 *

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94 * @param tree the tree control

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95 */

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96 public this(Tree tree) {

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97 checkStateListeners = new ListenerList();

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98 super(tree);

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99 }

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100

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101 /* (non-Javadoc)

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102 * Method declared on ICheckable.

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103 */

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104 public void addCheckStateListener(ICheckStateListener listener) {

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105 checkStateListeners.add(cast(Object)listener);

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106 }

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107

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108 /**

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109 * Applies the checked and grayed states of the given widget and its

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110 * descendents.

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111 *

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112 * @param checked a set of elements (element type: <code>Object</code>)

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113 * @param grayed a set of elements (element type: <code>Object</code>)

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114 * @param widget the widget

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115 */

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116 private void applyState(CustomHashtable checked, CustomHashtable grayed,

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117 Widget widget) {

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118 Item[] items = getChildren(widget);

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119 for (int i = 0; i < items.length; i++) {

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120 Item item = items[i];

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121 if ( auto ti = cast(TreeItem) item ) {

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122 Object data = item.getData();

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123 if (data !is null) {

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124 ti.setChecked(checked.containsKey(data));

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125 ti.setGrayed(grayed.containsKey(data));

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126 }

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127 }

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128 applyState(checked, grayed, item);

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129 }

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130 }

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131

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132 /**

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133 * Notifies any check state listeners that the check state of an element has changed.

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134 * Only listeners registered at the time this method is called are notified.

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135 *

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136 * @param event a check state changed event

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137 *

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138 * @see ICheckStateListener#checkStateChanged

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139 */

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140 protected void fireCheckStateChanged(CheckStateChangedEvent event) {

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141 Object[] array = checkStateListeners.getListeners();

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142 for (int i = 0; i < array.length; i++) {

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143 SafeRunnable.run( dgSafeRunnable( (ICheckStateListener l){

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144 l.checkStateChanged(event);

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145 }, cast(ICheckStateListener) array[i]));

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146 }

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147

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148 }

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149

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150 /**

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151 * Gathers the checked and grayed states of the given widget and its

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152 * descendents.

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153 *

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154 * @param checked a writable set of elements (element type: <code>Object</code>)

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155 * @param grayed a writable set of elements (element type: <code>Object</code>)

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156 * @param widget the widget

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157 */

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158 private void gatherState(CustomHashtable checked, CustomHashtable grayed,

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159 Widget widget) {

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160 Item[] items = getChildren(widget);

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161 for (int i = 0; i < items.length; i++) {

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162 Item item = items[i];

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163 if ( auto ti = cast(TreeItem) item ) {

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164 Object data = item.getData();

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165 if (data !is null) {

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166 if (ti.getChecked()) {

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167 checked.put(data, data);

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168 }

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169 if (ti.getGrayed()) {

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170 grayed.put(data, data);

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171 }

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172 }

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173 }

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174 gatherState(checked, grayed, item);

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175 }

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176 }

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177

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178 /* (non-Javadoc)

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179 * Method declared on ICheckable.

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180 */

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181 public bool getChecked(Object element) {

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182 Widget widget = findItem(element);

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183 if ( auto ti = cast(TreeItem) widget ) {

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184 return ti.getChecked();

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185 }

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186 return false;

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187 }

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188

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189 /**

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190 * Returns a list of checked elements in this viewer's tree,

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191 * including currently hidden ones that are marked as

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192 * checked but are under a collapsed ancestor.

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193 *

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194 * This method is typically used when preserving the interesting

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195 * state of a viewer; <code>setCheckedElements</code> is used during the restore.

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196 *

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197 *

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198 * @return the array of checked elements

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199 *

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200 * @see #setCheckedElements

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201 */

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202 public Object[] getCheckedElements() {

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203 ArrayList v = new ArrayList();

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204 Control tree = getControl();

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205 internalCollectChecked(v, tree);

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206 return v.toArray();

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207 }

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208

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209 /**

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210 * Returns the grayed state of the given element.

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211 *

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212 * @param element the element

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213 * @return <code>true</code> if the element is grayed,

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214 * and <code>false</code> if not grayed

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215 */

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216 public bool getGrayed(Object element) {

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217 Widget widget = findItem(element);

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218 if ( auto ti = cast(TreeItem) widget ) {

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219 return ti.getGrayed();

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220 }

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221 return false;

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222 }

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223

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224 /**

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225 * Returns a list of grayed elements in this viewer's tree,

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226 * including currently hidden ones that are marked as

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227 * grayed but are under a collapsed ancestor.

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228 *

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229 * This method is typically used when preserving the interesting

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230 * state of a viewer; <code>setGrayedElements</code> is used during the restore.

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231 *

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232 *

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233 * @return the array of grayed elements

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234 *

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235 * @see #setGrayedElements

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236 */

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237 public Object[] getGrayedElements() {

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238 List result = new ArrayList();

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239 internalCollectGrayed(result, getControl());

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240 return result.toArray();

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241 }

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242

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243 /* (non-Javadoc)

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244 * Method declared on StructuredViewer.

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245 */

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246 protected override void handleDoubleSelect(SelectionEvent event) {

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247

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248 if (lastClickedItem !is null) {

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249 TreeItem item = lastClickedItem;

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250 Object data = item.getData();

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251 if (data !is null) {

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252 bool state = item.getChecked();

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253 setChecked(data, !state);

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254 fireCheckStateChanged(new CheckStateChangedEvent(this, data,

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255 !state));

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256 }

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257 lastClickedItem = null;

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258 } else {

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259 super.handleDoubleSelect(event);

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260 }

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261 }

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262

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263 /* (non-Javadoc)

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264 * Method declared on StructuredViewer.

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265 */

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266 protected override void handleSelect(SelectionEvent event) {

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267

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268 lastClickedItem = null;

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269 if (event.detail is SWT.CHECK) {

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270 TreeItem item = cast(TreeItem) event.item;

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271 lastClickedItem = item;

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272 super.handleSelect(event);

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273

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274 Object data = item.getData();

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275 if (data !is null) {

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276 fireCheckStateChanged(new CheckStateChangedEvent(this, data,

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277 item.getChecked()));

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278 }

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279 } else {

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280 super.handleSelect(event);

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281 }

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282 }

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283

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284 /**

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285 * Gathers the checked states of the given widget and its

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286 * descendents, following a pre-order traversal of the tree.

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287 *

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288 * @param result a writable list of elements (element type: <code>Object</code>)

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289 * @param widget the widget

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290 */

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291 private void internalCollectChecked(List result, Widget widget) {

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292 Item[] items = getChildren(widget);

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293 for (int i = 0; i < items.length; i++) {

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294 Item item = items[i];

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295 if ( null !is cast(TreeItem)item && (cast(TreeItem) item).getChecked()) {

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296 Object data = item.getData();

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297 if (data !is null) {

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298 result.add(data);

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299 }

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300 }

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301 internalCollectChecked(result, item);

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302 }

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303 }

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304

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305 /**

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306 * Gathers the grayed states of the given widget and its

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307 * descendents, following a pre-order traversal of the tree.

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308 *

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309 * @param result a writable list of elements (element type: <code>Object</code>)

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310 * @param widget the widget

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311 */

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312 private void internalCollectGrayed(List result, Widget widget) {

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313 Item[] items = getChildren(widget);

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314 for (int i = 0; i < items.length; i++) {

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315 Item item = items[i];

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316 if (null !is cast(TreeItem)item && (cast(TreeItem) item).getGrayed()) {

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317 Object data = item.getData();

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318 if (data !is null) {

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319 result.add(data);

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320 }

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321 }

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322 internalCollectGrayed(result, item);

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323 }

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324 }

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325

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326 /**

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327 * Sets the checked state of all items to correspond to the given set of checked elements.

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328 *

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329 * @param checkedElements the set (element type: <code>Object</code>) of elements which are checked

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330 * @param widget the widget

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331 */

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332 private void internalSetChecked(CustomHashtable checkedElements,

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333 Widget widget) {

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334 Item[] items = getChildren(widget);

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335 for (int i = 0; i < items.length; i++) {

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336 TreeItem item = cast(TreeItem) items[i];

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337 Object data = item.getData();

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338 if (data !is null) {

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339 bool checked = checkedElements.containsKey(data);

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340 if (checked !is item.getChecked()) {

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341 item.setChecked(checked);

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342 }

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343 }

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344 internalSetChecked(checkedElements, item);

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345 }

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346 }

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347

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348 /**

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349 * Sets the grayed state of all items to correspond to the given set of grayed elements.

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350 *

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351 * @param grayedElements the set (element type: <code>Object</code>) of elements which are grayed

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352 * @param widget the widget

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353 */

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354 private void internalSetGrayed(CustomHashtable grayedElements, Widget widget) {

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355 Item[] items = getChildren(widget);

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356 for (int i = 0; i < items.length; i++) {

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357 TreeItem item = cast(TreeItem) items[i];

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358 Object data = item.getData();

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359 if (data !is null) {

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360 bool grayed = grayedElements.containsKey(data);

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361 if (grayed !is item.getGrayed()) {

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362 item.setGrayed(grayed);

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363 }

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364 }

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365 internalSetGrayed(grayedElements, item);

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366 }

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367 }

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368

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369 /* (non-Javadoc)

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370 * Method declared on Viewer.

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371 */

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372 protected override void preservingSelection(Runnable updateCode) {

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373

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374 int n = getItemCount(getControl());

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375 CustomHashtable checkedNodes = newHashtable(n * 2 + 1);

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376 CustomHashtable grayedNodes = newHashtable(n * 2 + 1);

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377

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378 gatherState(checkedNodes, grayedNodes, getControl());

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379

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380 super.preservingSelection(updateCode);

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381

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382 applyState(checkedNodes, grayedNodes, getControl());

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383 }

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384

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385 /* (non-Javadoc)

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386 * Method declared on ICheckable.

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387 */

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388 public void removeCheckStateListener(ICheckStateListener listener) {

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389 checkStateListeners.remove(cast(Object)listener);

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390 }

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391

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392 /* (non-Javadoc)

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393 * Method declared on ICheckable.

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394 */

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395 public bool setChecked(Object element, bool state) {

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396 Assert.isNotNull(element);

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397 Widget widget = internalExpand(element, false);

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398 if ( auto ti = cast(TreeItem) widget ) {

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399 ti.setChecked(state);

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400 return true;

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401 }

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402 return false;

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403 }

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404

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405 /**

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406 * Sets the checked state for the children of the given item.

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407 *

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408 * @param item the item

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409 * @param state <code>true</code> if the item should be checked,

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410 * and <code>false</code> if it should be unchecked

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411 */

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412 private void setCheckedChildren(Item item, bool state) {

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413 createChildren(item);

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414 Item[] items = getChildren(item);

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415 if (items !is null) {

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416 for (int i = 0; i < items.length; i++) {

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417 Item it = items[i];

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418 if (it.getData() !is null && (null !is cast(TreeItem)it )) {

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419 TreeItem treeItem = cast(TreeItem) it;

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420 treeItem.setChecked(state);

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421 setCheckedChildren(treeItem, state);

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422 }

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423 }

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424 }

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425 }

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426

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427 /**

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428 * Sets which elements are checked in this viewer's tree.

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429 * The given list contains the elements that are to be checked;

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430 * all other elements are to be unchecked.

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431 * Does not fire events to check state listeners.

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432 *

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433 * This method is typically used when restoring the interesting

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434 * state of a viewer captured by an earlier call to <code>getCheckedElements</code>.

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435 *

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436 *

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437 * @param elements the array of checked elements

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438 * @see #getCheckedElements

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439 */

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440 public void setCheckedElements(Object[] elements) {

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diff changeset

441 assertElementsNotNull(elements);

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442 CustomHashtable checkedElements = newHashtable(elements.length * 2 + 1);

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443 for (int i = 0; i < elements.length; ++i) {

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444 Object element = elements[i];

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445 // Ensure item exists for element

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446 internalExpand(element, false);

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447 checkedElements.put(element, element);

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448 }

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449 Control tree = getControl();

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450 tree.setRedraw(false);

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451 internalSetChecked(checkedElements, tree);

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452 tree.setRedraw(true);

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453 }

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454

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Frank Benoit <benoit@tionex.de>

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diff changeset

455 /**

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diff changeset

456 * Sets the grayed state for the given element in this viewer.

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457 *

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458 * @param element the element

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diff changeset

459 * @param state <code>true</code> if the item should be grayed,

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diff changeset

460 * and <code>false</code> if it should be ungrayed

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diff changeset

461 * @return <code>true</code> if the gray state could be set,

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462 * and <code>false</code> otherwise

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463 */

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diff changeset

464 public bool setGrayed(Object element, bool state) {

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465 Assert.isNotNull(element);

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466 Widget widget = internalExpand(element, false);

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diff changeset

467 if ( auto ti = cast(TreeItem) widget ) {

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diff changeset

468 ti.setGrayed(state);

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469 return true;

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470 }

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471 return false;

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472 }

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473

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474 /**

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diff changeset

475 * Check and gray the selection rather than calling both

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diff changeset

476 * setGrayed and setChecked as an optimization.

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diff changeset

477 * Does not fire events to check state listeners.

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diff changeset

478 * @param element the item being checked

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diff changeset

479 * @param state a bool indicating selection or deselection

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diff changeset

480 * @return bool indicating success or failure.

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481 */

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482 public bool setGrayChecked(Object element, bool state) {

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483 Assert.isNotNull(element);

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484 Widget widget = internalExpand(element, false);

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485 if (auto item = cast(TreeItem)widget ) {

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486 item.setChecked(state);

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487 item.setGrayed(state);

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488 return true;

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489 }

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490 return false;

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491 }

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492

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493 /**

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diff changeset

494 * Sets which elements are grayed in this viewer's tree.

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diff changeset

495 * The given list contains the elements that are to be grayed;

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diff changeset

496 * all other elements are to be ungrayed.

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diff changeset

497 *

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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498 * This method is typically used when restoring the interesting

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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parents:

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499 * state of a viewer captured by an earlier call to <code>getGrayedElements</code>.

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diff changeset

500 *

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diff changeset

501 *

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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parents:

diff changeset

502 * @param elements the array of grayed elements

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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parents:

diff changeset

503 *

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

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504 * @see #getGrayedElements

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parents:

diff changeset

505 */

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diff changeset

506 public void setGrayedElements(Object[] elements) {

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diff changeset

507 assertElementsNotNull(elements);

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diff changeset

508 CustomHashtable grayedElements = newHashtable(elements.length * 2 + 1);

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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509 for (int i = 0; i < elements.length; ++i) {

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parents:

diff changeset

510 Object element = elements[i];

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

511 // Ensure item exists for element

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

512 internalExpand(element, false);

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

513 grayedElements.put(element, element);

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

514 }

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

515 Control tree = getControl();

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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516 tree.setRedraw(false);

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517 internalSetGrayed(grayedElements, tree);

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518 tree.setRedraw(true);

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519 }

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Frank Benoit <benoit@tionex.de>

parents:

diff changeset

520

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

521 /**

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

522 * Sets the grayed state for the given element and its parents

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

523 * in this viewer.

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

524 *

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

525 * @param element the element

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

526 * @param state <code>true</code> if the item should be grayed,

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

527 * and <code>false</code> if it should be ungrayed

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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parents:

diff changeset

528 * @return <code>true</code> if the element is visible and the gray

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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parents:

diff changeset

529 * state could be set, and <code>false</code> otherwise

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

530 * @see #setGrayed

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

531 */

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

532 public bool setParentsGrayed(Object element, bool state) {

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

533 Assert.isNotNull(element);

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

534 Widget widget = internalExpand(element, false);

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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parents:

diff changeset

535 if (auto item = cast(TreeItem) widget ) {

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

536 item.setGrayed(state);

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

537 item = item.getParentItem();

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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parents:

diff changeset

538 while (item !is null) {

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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parents:

diff changeset

539 item.setGrayed(state);

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

540 item = item.getParentItem();

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

541 }

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

542 return true;

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

543 }

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

544 return false;

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

545 }

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

546

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

547 /**

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

548 * Sets the checked state for the given element and its visible

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

549 * children in this viewer.

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

550 * Assumes that the element has been expanded before. To enforce

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

551 * that the item is expanded, call <code>expandToLevel</code>

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

552 * for the element.

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

553 * Does not fire events to check state listeners.

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

554 *

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

555 * @param element the element

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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parents:

diff changeset

556 * @param state <code>true</code> if the item should be checked,

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

557 * and <code>false</code> if it should be unchecked

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

558 * @return <code>true</code> if the checked state could be set,

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

559 * and <code>false</code> otherwise

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

560 */

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

561 public bool setSubtreeChecked(Object element, bool state) {

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

562 Widget widget = internalExpand(element, false);

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

563 if (auto item = cast(TreeItem) widget ) {

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

564 item.setChecked(state);

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

565 setCheckedChildren(item, state);

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

566 return true;

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

567 }

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

568 return false;

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

569 }

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

570

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

571 /**

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

572 * Sets to the given value the checked state for all elements in this viewer.

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

573 * Does not fire events to check state listeners.

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

574 * Assumes that the element has been expanded before. To enforce

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

575 * that the item is expanded, call <code>expandToLevel</code>

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

576 * for the element.

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

577 *

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

578 * @param state <code>true</code> if the element should be checked,

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

579 * and <code>false</code> if it should be unchecked

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

580 * @deprecated as this method only checks or unchecks visible items

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

581 * is is recommended that {@link #setSubtreeChecked(Object, bool)}

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

582 * is used instead.

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

583 * @see #setSubtreeChecked(Object, bool)

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

584 *

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

585 * @since 3.2

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

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586 */

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587 public void setAllChecked(bool state) {

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588 setAllChecked(state, getTree().getItems());

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589

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590 }

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591

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592 /**

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593 * Set the checked state of the visible items and their children to state.

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594 * @param state

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595 * @param items

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596 * @deprecated

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597 * @see #setAllChecked(bool)

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598 */

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599 private void setAllChecked(bool state, TreeItem[] items) {

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600 for (int i = 0; i < items.length; i++) {

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601 items[i].setChecked(state);

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602 TreeItem[] children = items[i].getItems();

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603 setAllChecked(state, children);

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604 }

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605 }

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606 }

Mercurial > projects > dwt2

annotate org.eclipse.jface/src/org/eclipse/jface/viewers/CheckboxTreeViewer.d @ 12:bc29606a740c