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+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org 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 version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org. If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+
+package org.openoffice.accessibility.awb.view;
+
+import java.awt.Color;
+import java.awt.Component;
+import java.awt.Font;
+import java.awt.GridBagLayout;
+import java.awt.GridBagConstraints;
+import java.awt.Insets;
+
+import java.util.Vector;
+
+import java.lang.reflect.Method;
+import java.lang.NoSuchMethodException;
+import java.lang.IllegalAccessException;
+import java.lang.reflect.InvocationTargetException;
+
+import javax.swing.JPanel;
+import javax.swing.JTree;
+import javax.swing.BorderFactory;
+import javax.swing.border.Border;
+import javax.swing.border.BevelBorder;
+import javax.swing.SwingUtilities;
+
+import com.sun.star.accessibility.AccessibleEventObject;
+import com.sun.star.accessibility.XAccessibleContext;
+import com.sun.star.accessibility.XAccessibleComponent;
+import com.sun.star.accessibility.XAccessibleEventBroadcaster;
+import com.sun.star.accessibility.XAccessibleEventListener;
+import com.sun.star.accessibility.XAccessibleSelection;
+import com.sun.star.lang.EventObject;
+import com.sun.star.uno.UnoRuntime;
+
+import org.openoffice.accessibility.awb.view.ObjectView;
+
+
+
+/** This container of specialized object views displays information about
+ one accessible object.
+ In this it plays several roles:
+ 1. Object container.
+ 2. Accessibility event dispatcher.
+ 3. Object view class registration manager.
+ 4. Swing widget.
+*/
+public class ObjectViewContainer
+ extends JPanel
+ implements XAccessibleEventListener
+{
+ public ObjectViewContainer ()
+ {
+ maFont = new Font ("Dialog", Font.PLAIN, 11);
+ maViewTemplates = new Vector ();
+ maViewBorder = BorderFactory.createBevelBorder (BevelBorder.RAISED);
+ GridBagLayout aLayout = new GridBagLayout ();
+ setLayout (aLayout);
+ // maLayoutManager = new LayoutManager (this);
+ maLayoutManager = null;
+
+ RegisterView (ContextView.class);
+ RegisterView (ComponentView.class);
+ RegisterView (ParentView.class);
+ RegisterView (StateSetView.class);
+ RegisterView (FocusView.class);
+ RegisterView (TextView.class);
+ RegisterView (EditableTextView.class);
+ RegisterView (TableView.class);
+ RegisterView (SelectionView.class);
+ RegisterView (ServiceInterfaceView.class);
+ RegisterView (EventMonitorView.class);
+
+ mxContext = null;
+
+ // addMouseListener (maLayoutManager);
+ // addMouseMotionListener (maLayoutManager);
+ }
+
+
+
+ /** Remove all existing views and create new ones according to the
+ interfaces supported by the given object.
+ */
+ public synchronized void SetObject (XAccessibleContext xContext)
+ {
+ // Call Destroy at all views to give them a chance to release their
+ // resources.
+ int n = getComponentCount();
+ for (int i=0; i<n; i++)
+ ((ObjectView)getComponent(i)).Destroy();
+ // Remove existing views.
+ removeAll ();
+
+ mxContext = xContext;
+
+ // Add new views.
+ for (int i=0; i<maViewTemplates.size(); i++)
+ {
+ try
+ {
+ Class aViewClass = (Class)maViewTemplates.elementAt (i);
+ Method aCreateMethod = aViewClass.getDeclaredMethod (
+ "Create", new Class[] {
+ ObjectViewContainer.class,
+ XAccessibleContext.class});
+ if (aCreateMethod != null)
+ {
+ ObjectView aView = (ObjectView)
+ aCreateMethod.invoke (
+ null, new Object[] {this, xContext});
+ Add (aView);
+ }
+ }
+ catch (NoSuchMethodException e)
+ {System.err.println ("Caught exception while creating view "
+ + i + " : " + e);}
+ catch (IllegalAccessException e)
+ {System.err.println ("Caught exception while creating view "
+ + i + " : " + e);}
+ catch (InvocationTargetException e)
+ {System.err.println ("Caught exception while creating view "
+ + i + " : " + e);}
+ }
+
+ UpdateLayoutManager ();
+
+ // Now set the object at all views.
+ n = getComponentCount();
+ for (int i=0; i<n; i++)
+ ((ObjectView)getComponent(i)).SetObject (xContext);
+
+ setPreferredSize (getLayout().preferredLayoutSize (this));
+ ((GridBagLayout) getLayout()).invalidateLayout(this);
+ validate();
+ }
+
+
+
+
+ /** Add the given class to the list of classes which will be
+ instantiated the next time an accessible object is set.
+ */
+ public void RegisterView (Class aObjectViewClass)
+ {
+ maViewTemplates.addElement (aObjectViewClass);
+ }
+
+
+
+
+ /** Replace one view class with another.
+ */
+ public void ReplaceView (Class aObjectViewClass, Class aSubstitution)
+ {
+ int nIndex = maViewTemplates.indexOf (aObjectViewClass);
+ if (nIndex >= 0)
+ maViewTemplates.setElementAt (aSubstitution, nIndex);
+ }
+
+
+ /** Return a font that should be used for widgets in the views.
+ */
+ public Font GetViewFont ()
+ {
+ return maFont;
+ }
+
+ public Color GetErrorColor ()
+ {
+ return new Color (255,80,50);
+ }
+
+ /** Add an object view and place it below all previously added views.
+ @param aView
+ This argument may be null. In this case nothing happens.
+ */
+ private void Add (ObjectView aView)
+ {
+ if (aView != null)
+ {
+ GridBagConstraints constraints = new GridBagConstraints ();
+ constraints.gridx = 0;
+ constraints.gridy = getComponentCount();
+ constraints.gridwidth = 1;
+ constraints.gridheight = 1;
+ constraints.weightx = 1;
+ constraints.weighty = 0;
+ constraints.ipadx = 2;
+ constraints.ipady = 5;
+ constraints.insets = new Insets (5,5,5,5);
+ constraints.anchor = GridBagConstraints.NORTH;
+ constraints.fill = GridBagConstraints.HORIZONTAL;
+
+ aView.setBorder (
+ BorderFactory.createTitledBorder (
+ maViewBorder, aView.GetTitle()));
+
+ add (aView, constraints);
+ }
+ }
+
+ /** Update the layout manager by setting the vertical weight of the
+ bottom entry to 1 and so make it strech to over the available
+ space.
+
+ */
+ private void UpdateLayoutManager ()
+ {
+ // Adapt the layout manager.
+ if (getComponentCount() > 1000)
+ {
+ Component aComponent = getComponent (getComponentCount()-1);
+ GridBagLayout aLayout = (GridBagLayout)getLayout();
+ GridBagConstraints aConstraints = aLayout.getConstraints (aComponent);
+ aConstraints.weighty = 1;
+ aLayout.setConstraints (aComponent, aConstraints);
+ }
+ }
+
+
+
+
+ /** Put the event just received into the event queue which will deliver
+ it soon asynchronuously to the DispatchEvent method.
+ */
+ public void notifyEvent (final AccessibleEventObject aEvent)
+ {
+ SwingUtilities.invokeLater(
+ new Runnable()
+ {
+ public void run()
+ {
+ DispatchEvent (aEvent);
+ }
+ }
+ );
+ }
+
+
+
+
+ /** Forward accessibility events to all views without them being
+ registered as event listeners each on their own.
+ */
+ private void DispatchEvent (AccessibleEventObject aEvent)
+ {
+ int n = getComponentCount();
+ for (int i=0; i<n; i++)
+ ((ObjectView)getComponent(i)).notifyEvent (aEvent);
+ }
+
+
+
+ /** When the object is disposed that is displayed by the views of this
+ container then tell all views about this.
+ */
+ public void disposing (EventObject aEvent)
+ {
+ mxContext = null;
+ SwingUtilities.invokeLater(
+ new Runnable()
+ {
+ public void run()
+ {
+ SetObject (null);
+ }
+ }
+ );
+ }
+
+
+
+
+ /// The current accessible context display by the views.
+ private XAccessibleContext mxContext;
+
+ /// Observe this tree for selection changes and notify them to all
+ /// children.
+ private JTree maTree;
+ private Border maViewBorder;
+ /// List of view templates which are instantiated when new object is set.
+ private Vector maViewTemplates;
+ private Font maFont;
+ private LayoutManager maLayoutManager;
+}