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Diffstat (limited to 'accessibility/workben/org/openoffice/accessibility/awb/view/ObjectViewContainer.java')
-rw-r--r-- | accessibility/workben/org/openoffice/accessibility/awb/view/ObjectViewContainer.java | 310 |
1 files changed, 310 insertions, 0 deletions
diff --git a/accessibility/workben/org/openoffice/accessibility/awb/view/ObjectViewContainer.java b/accessibility/workben/org/openoffice/accessibility/awb/view/ObjectViewContainer.java new file mode 100644 index 000000000000..54855cbaf885 --- /dev/null +++ b/accessibility/workben/org/openoffice/accessibility/awb/view/ObjectViewContainer.java @@ -0,0 +1,310 @@ +/************************************************************************* + * + * 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; +} |