54 lines
1.8 KiB
Java
54 lines
1.8 KiB
Java
import drafts.com.sun.star.accessibility.XAccessible;
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import drafts.com.sun.star.accessibility.AccessibleEventObject;
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import com.sun.star.uno.UnoRuntime;
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import java.io.PrintStream;
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import java.util.LinkedList;
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class GeometryEventHandler
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extends EventHandler
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{
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public GeometryEventHandler (AccessibleEventObject aEvent, AccessibilityTreeModel aTreeModel)
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{
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super (aEvent, aTreeModel);
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}
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public void PrintOldAndNew (PrintStream out)
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{
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out.println (" children not relevant");
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}
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public void Process ()
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{
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AccTreeNode aNode = maTreeModel.updateNode (mxEventSource,
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AccessibleComponentHandler.class,
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AccessibleExtendedComponentHandler.class);
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// Update the graphical representation of aNode in the Canvas.
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Canvas aCanvas = maTreeModel.getCanvas();
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if (aCanvas != null)
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{
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// Iterate over all nodes in the sub-tree rooted in aNode.
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LinkedList aShapeQueue = new LinkedList();
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aShapeQueue.addLast (aNode);
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while (aShapeQueue.size() > 0)
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{
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// Remove the first node from the queue and update its
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// graphical representation.
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AccTreeNode aShapeNode = (AccTreeNode) aShapeQueue.getFirst();
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aShapeQueue.removeFirst();
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aCanvas.updateNodeGeometry (aShapeNode);
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// Add the node's children to the queue.
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int nChildCount = maTreeModel.getChildCount (aShapeNode);
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for (int i=0; i<nChildCount; i++)
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{
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Object aTreeNode = maTreeModel.getChildNoCreate (aShapeNode, i);
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if (aTreeNode instanceof AccTreeNode)
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aShapeQueue.addLast (aTreeNode);
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}
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}
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aCanvas.repaint ();
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}
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}
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}
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