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Diffstat (limited to 'accessibility/workben/org/openoffice/accessibility/awb/canvas/ShapeContainer.java')
-rw-r--r-- | accessibility/workben/org/openoffice/accessibility/awb/canvas/ShapeContainer.java | 271 |
1 files changed, 271 insertions, 0 deletions
diff --git a/accessibility/workben/org/openoffice/accessibility/awb/canvas/ShapeContainer.java b/accessibility/workben/org/openoffice/accessibility/awb/canvas/ShapeContainer.java new file mode 100644 index 000000000000..fd99d5601cc0 --- /dev/null +++ b/accessibility/workben/org/openoffice/accessibility/awb/canvas/ShapeContainer.java @@ -0,0 +1,271 @@ +/************************************************************************* + * + * $RCSfile: ShapeContainer.java,v $ + * + * $Revision: 1.2 $ + * + * last change: $Author: obr $ $Date: 2003/09/19 09:21:35 $ + * + * The Contents of this file are made available subject to the terms of + * either of the following licenses + * + * - GNU Lesser General Public License Version 2.1 + * - Sun Industry Standards Source License Version 1.1 + * + * Sun Microsystems Inc., October, 2000 + * + * GNU Lesser General Public License Version 2.1 + * ============================================= + * Copyright 2000 by Sun Microsystems, Inc. + * 901 San Antonio Road, Palo Alto, CA 94303, USA + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License version 2.1, as published by the Free Software Foundation. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + * + * Sun Industry Standards Source License Version 1.1 + * ================================================= + * The contents of this file are subject to the Sun Industry Standards + * Source License Version 1.1 (the "License"); You may not use this file + * except in compliance with the License. You may obtain a copy of the + * License at http://www.openoffice.org/license.html. + * + * Software provided under this License is provided on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, + * WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS, + * MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING. + * See the License for the specific provisions governing your rights and + * obligations concerning the Software. + * + * The Initial Developer of the Original Code is: Sun Microsystems, Inc. + * + * Copyright: 2000 by Sun Microsystems, Inc. + * + * All Rights Reserved. + * + * Contributor(s): _______________________________________ + * + * + ************************************************************************/ + +package org.openoffice.accessibility.awb.canvas; + +import java.awt.Rectangle; +import java.util.Iterator; +import javax.swing.event.TreeModelListener; +import javax.swing.event.TreeExpansionListener; +import javax.swing.event.TreeWillExpandListener; +import javax.swing.event.TreeExpansionEvent; +import javax.swing.event.TreeModelEvent; +import javax.swing.tree.TreeNode; + +import com.sun.star.accessibility.XAccessibleEventBroadcaster; + +/** Each canvas has a shape container that is responsible for maintaining + a collection of shapes that are displayed by the canvas. +*/ +public class ShapeContainer + implements TreeModelListener, + TreeExpansionListener, + TreeWillExpandListener +{ + public ShapeContainer (Canvas aCanvas) + { + maShapeList = new java.util.Hashtable(); + maBoundingBox = new Rectangle (0,0,100,100); + maCanvas = aCanvas; + maTree = null; + } + + + + + public synchronized void SetTree (javax.swing.JTree aTree) + { + if (aTree != maTree) + { + if (maTree != null) + { + maTree.getModel().removeTreeModelListener (this); + maTree.removeTreeExpansionListener (this); + maTree.removeTreeWillExpandListener (this); + } + + Clear(); + + maTree = aTree; + + maTree.getModel().addTreeModelListener (this); + maTree.addTreeExpansionListener (this); + maTree.addTreeWillExpandListener (this); + } + } + + + + + public synchronized boolean AddNode (TreeNode aNode) + { + CanvasShape aShape = (CanvasShape)maShapeList.get (aNode); + if (aShape == null) + { + aShape = new CanvasShape (aNode, maCanvas); + + if (aNode instanceof XAccessibleEventBroadcaster) + ((XAccessibleEventBroadcaster) aNode).addEventListener(aShape); + + // Update bounding box that includes all objects. + if (maShapeList.size() == 0) + maBoundingBox = aShape.GetBBox(); + else + maBoundingBox = maBoundingBox.union (aShape.GetBBox()); + + maShapeList.put (aNode, aShape); + + maCanvas.repaint(); + + return true; + } + else + return false; + } + + + /** + */ + public synchronized boolean RemoveNode (TreeNode aNode) + { + CanvasShape aShape = (CanvasShape)maShapeList.get (aNode); + if (aShape != null) + { + if (aNode instanceof XAccessibleEventBroadcaster) + ((XAccessibleEventBroadcaster) aNode).removeEventListener(aShape); + + maShapeList.remove (aNode); + maCanvas.SelectObject (null); + maCanvas.repaint (); + return true; + } + else + return false; + } + + + + + public synchronized void Clear () + { + maShapeList.clear (); + } + + + + + public Iterator GetIterator () + { + return maShapeList.values().iterator (); + } + + + + + public CanvasShape Get (TreeNode aNode) + { + if (aNode != null) { + return (CanvasShape)maShapeList.get (aNode); + } + return null; + } + + + private void PrintMessage (String aMessage, java.util.EventObject aEvent) + { + // System.out.println ("ShapeContainer: " + aMessage + ": " + aEvent); + } + + public void treeNodesChanged (TreeModelEvent aEvent) + { + PrintMessage ("treeNodesChanged", aEvent); + } + public void treeNodesInserted (TreeModelEvent aEvent) + { + PrintMessage ("treeNodesInserted", aEvent); + Object[] aNewNodes = aEvent.getChildren(); + for (int i=0; i<aNewNodes.length; i++) + AddNode ((TreeNode)aNewNodes[i]); + } + public void treeNodesRemoved (TreeModelEvent aEvent) + { + PrintMessage ("treeNodesRemoved", aEvent); + Object[] aOldNodes = aEvent.getChildren(); + for (int i=0; i<aOldNodes.length; i++) + RemoveNode ((TreeNode)aOldNodes[i]); + } + public void treeStructureChanged (TreeModelEvent aEvent) + { + PrintMessage ("treeStructureChanged", aEvent); + TreeNode aNode = (TreeNode)aEvent.getTreePath().getLastPathComponent(); + RemoveAllChildren(aNode); + AddAllChildren(aNode); + } + + public void treeWillExpand (TreeExpansionEvent aEvent) + { + PrintMessage ("treeWillExpand", aEvent); + } + public void treeWillCollapse (TreeExpansionEvent aEvent) + { + PrintMessage ("treeWillCollapse", aEvent); + TreeNode aNode = (TreeNode)aEvent.getPath().getLastPathComponent(); + RemoveAllChildren (aNode); + } + public void treeExpanded (TreeExpansionEvent aEvent) + { + PrintMessage ("treeExpanded", aEvent); + TreeNode aNode = (TreeNode)aEvent.getPath().getLastPathComponent(); + AddAllChildren (aNode); + } + public void treeCollapsed (TreeExpansionEvent aEvent) + { + PrintMessage ("treeCollapsed", aEvent); + } + + private void AddAllChildren (TreeNode aNode) { + java.util.Enumeration aChildList = aNode.children(); + while (aChildList.hasMoreElements()) { + TreeNode aChild = (TreeNode) aChildList.nextElement(); + if (aChild != null) { + AddAllChildren (aChild); + AddNode (aChild); + } + } + } + + private void RemoveAllChildren (TreeNode aNode) { + java.util.Enumeration aChildList = aNode.children(); + while (aChildList.hasMoreElements()) { + TreeNode aChild = (TreeNode) aChildList.nextElement(); + if (aChild != null) { + RemoveAllChildren (aChild); + RemoveNode (aChild); + } + } + } + + + private java.util.Hashtable maShapeList; + private Rectangle maBoundingBox; + private Canvas maCanvas; + private javax.swing.JTree maTree; +} |