AOO410/main/accessibility/workben/org/openoffice/accessibility/awb/canvas/CanvasShape.java - openoffice - Git at Google

 /**************************************************************
  *
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
  * distributed with this work for additional information
  * regarding copyright ownership.  The ASF licenses this file
  * to you under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  * KIND, either express or implied.  See the License for the
  * specific language governing permissions and limitations
  * under the License.
  *
  *************************************************************/


 package org.openoffice.accessibility.awb.canvas;

 import java.awt.Color;
 import java.awt.Dimension;
 import java.awt.Graphics2D;
 import java.awt.Point;
 import java.awt.Rectangle;
 import java.awt.geom.Point2D;
 import java.awt.geom.Rectangle2D;
 import java.awt.geom.AffineTransform;
 import java.awt.geom.NoninvertibleTransformException;


 import com.sun.star.accessibility.*;
 import com.sun.star.lang.EventObject;
 import com.sun.star.uno.UnoRuntime;


 class CanvasShape implements XAccessibleEventListener
 {
     public final Color maHighlightColor = Color.red;
     public final Color maSelectionColor = Color.green;
     public final Color maFocusColor = Color.blue;

     public CanvasShape (javax.swing.tree.TreeNode aNode, Canvas aCanvas)
     {
         maNode = aNode;
         msName = "<no name>";
         msDescription = "<no description>";
         maShape = new Rectangle2D.Double (-10,-10,10,10);
         maPosition = new Point (-10,-10);
         maSize = new Dimension (10,10);
         maFgColor = java.awt.Color.black;
         maBgColor = Color.blue;
         mnRole = -1;
         mbHighlighted = false;
         mbSelected = false;
         mbFocused = false;
         maCanvas = aCanvas;

         Update ();
     }


     public javax.swing.tree.TreePath getNodePath (javax.swing.tree.TreeNode node)
     {
         javax.swing.tree.TreeNode parent = node.getParent();
         return (parent != null) ?
             getNodePath(parent).pathByAddingChild(node) :
             new javax.swing.tree.TreePath(node);
     }

     public javax.swing.tree.TreePath getNodePath ()
     {
         return getNodePath(maNode);
     }


     /** Update the data obtained from the <type>AccessibilityNode</type>
         object.
     */
     public void Update ()
     {
         if (maNode instanceof XAccessible) {
             mxContext = ((XAccessible) maNode).getAccessibleContext();
             mxComponent = (XAccessibleComponent)UnoRuntime.queryInterface(
                 XAccessibleComponent.class, mxContext);
         }

         if (mxContext != null)
         {
             msName = mxContext.getAccessibleName();
             msDescription = mxContext.getAccessibleDescription();
             mnRole = mxContext.getAccessibleRole();

             // Extract the selected and focused flag.
             XAccessibleStateSet xStateSet = mxContext.getAccessibleStateSet ();
             if (xStateSet != null)
             {
                 mbSelected = xStateSet.contains (AccessibleStateType.SELECTED);
                 mbFocused = xStateSet.contains (AccessibleStateType.FOCUSED);
             }
         }

         UpdateGeometry ();

         if (mxComponent != null)
         {
             // Note: alpha values in office 0..255 have to be mapped to
             //       255..0 in Java
             Color aCol = new Color (mxComponent.getForeground(), true);
             maFgColor = new Color (aCol.getRed (),
                                    aCol.getGreen (),
                                    aCol.getBlue (),
                                    0xff - aCol.getAlpha ());
             aCol = new Color (mxComponent.getBackground(), true);
             maBgColor = new Color (aCol.getRed (),
                                    aCol.getGreen (),
                                    aCol.getBlue (),
                                    0xff - aCol.getAlpha ());
         }
     }


     public void UpdateGeometry ()
     {
         if (mxComponent != null)
         {
             com.sun.star.awt.Point aLocationOnScreen =
                 mxComponent.getLocationOnScreen();
             com.sun.star.awt.Size aSizeOnScreen = mxComponent.getSize();
             maPosition = new Point (
                 aLocationOnScreen.X,
                 aLocationOnScreen.Y);
             maSize = new Dimension (
                 aSizeOnScreen.Width,
                 aSizeOnScreen.Height);
         }
     }


     /** Paint the object into the specified canvas.  It is transformed
         according to the specified offset and scale.
     */
     public void paint (
         Graphics2D g,
         boolean bShowDescription,
         boolean bShowName,
         boolean bShowText)
     {
         try{
             // Transform the object's position and size according to the
             // specified offset and scale.
             Point aLocation = new Point();
             maShape = new Rectangle2D.Double (
                 maPosition.x,
                 maPosition.y,
                 maSize.width,
                 maSize.height);
             maTransformation = g.getTransform();

             // Fill the object's bounding box with its background color if it
             // has no children.
             if (mxContext.getAccessibleChildCount() == 0)
             {
                 g.setColor (maBgColor);
                 g.fill (maShape);
             }

             // Remove alpha channel from color before drawing the frame.
             Color color = maFgColor;
             if (maFgColor.getAlpha()<128)
                 color = new Color (maFgColor.getRed(), maFgColor.getGreen(), maFgColor.getBlue());
             g.setColor (color);
             g.draw (maShape);

             if (mbFocused)
             {
                 g.setColor (maFocusColor);
                 for (int x=0; x<=2; x++)
                     for (int y=0; y<=2; y++)
                         g.fill (
                             new Rectangle2D.Double (
                                 maShape.x + x/2.0 * maShape.width-3,
                                 maShape.y + y/2.0 * maShape.height-3,
                                 6,
                                 6));
             }
             if (mbSelected)
             {
                 g.setColor (maSelectionColor);
                 for (int x=0; x<=2; x++)
                     for (int y=0; y<=2; y++)
                         g.draw (
                             new Rectangle2D.Double (
                                 maShape.x + x/2.0 * maShape.width-2,
                                 maShape.y + y/2.0 * maShape.height-2,
                                 4,
                                 4));
             }

             // Write the object's text OR name and description.
             g.setColor (maFgColor);
             if (bShowName)
                 paintName (g);
             if (bShowDescription)
                 paintDescription (g);
             if (bShowText)
                 paintText (g);
         }
         catch (Exception e)
         { // don't care
         }
     }


     public void paint_highlight (Graphics2D g)
     {
         if (mbHighlighted)
             g.setColor (maHighlightColor);
         else
             g.setColor (maFgColor);
         g.draw (maShape);
     }


     private void paintName (Graphics2D g)
     {
         g.drawString ("Name: " + msName,
             (float)maShape.x+5,
             (float)maShape.y+15);
     }


     private void paintDescription (Graphics2D g)
     {
         g.drawString ("Description: " + msDescription,
             (float)maShape.x+5,
             (float)maShape.y+35);
     }


     private void paintText (Graphics2D g)
     {
         XAccessibleText xText = null;
         // get XAccessibleText
         xText = (XAccessibleText)UnoRuntime.queryInterface(
             XAccessibleText.class, mxContext);

         // Draw every character in the text string.
         if (xText != null)
         {
             String sText = xText.getText();
             try
             {
                 for(int i = 0; i < sText.length(); i++)
                 {
                     com.sun.star.awt.Rectangle aRect =
                         xText.getCharacterBounds(i);

                     double x = maShape.x + aRect.X;
                     double y = maShape.y + aRect.Y + aRect.Height;

                     g.drawString (sText.substring(i, i+1), (float)x, (float)y);
                 }
             }
             catch (com.sun.star.lang.IndexOutOfBoundsException e)
             {}
         }
     }


     /** Compute whether the specified point lies inside the object's
         bounding box.
     */
     public boolean Contains (int x, int y)
     {
         Point2D aPosition = new Point2D.Double (x,y);
         try
         {
             maTransformation.inverseTransform (aPosition, aPosition);
             //            System.out.println ("transformed "+x+","+y+" to "+aPosition);
         }
         catch (NoninvertibleTransformException aException)
         {
             return false;
         }
         return (maShape.contains (aPosition));
     }

     public void Highlight (boolean bFlag)
     {
         mbHighlighted = bFlag;
     }

     public boolean IsHighlighted ()
     {
         return mbHighlighted;
     }

     public Rectangle GetBBox ()
     {
         return new Rectangle (maPosition, maSize);
     }

     public Point getOrigin ()
     {
         return maPosition;
     }

     public Dimension GetSize ()
     {
         return maSize;
     }

     public int getRole ()
     {
         return mnRole;
     }

     public XAccessibleContext getContext ()
     {
         return mxContext;
     }

     public XAccessibleComponent getComponent ()
     {
         return mxComponent;
     }

     public String toString ()
     {
         return ">"+msName+", "+msDescription+" +"+maPosition.x+"+"+maPosition.y
             +"x"+maSize.width+"x"+maSize.height+"<";
     }

     /** */
     public void notifyEvent(com.sun.star.accessibility.AccessibleEventObject aEvent) {
         try {
             switch (aEvent.EventId) {
                 case AccessibleEventId.BOUNDRECT_CHANGED:
                 case AccessibleEventId.VISIBLE_DATA_CHANGED:
                     UpdateGeometry ();
                     maCanvas.repaint();
                     break;
                 default:
                     break;
             }
         } catch (Exception aException) {
             System.err.println ("caught exception while updating a shape:"
                 + aException);
             aException.printStackTrace (System.err);
         }
     }

     /** Callback for disposing events.
     */
     public void disposing (com.sun.star.lang.EventObject e)
     {
         System.out.println ("Disposing");
     }


     private Canvas
         maCanvas;
     private javax.swing.tree.TreeNode
         maNode;
     private XAccessibleContext
         mxContext;
     private XAccessibleComponent
         mxComponent;
     private String
         msDescription,
         msName;
     private Rectangle2D.Double maShape;
     private AffineTransform maTransformation;
     private Point maPosition;
     private Dimension
         maTransformedSize,
         maSize;
     private Color
         maFgColor,
         maBgColor;
     private boolean
         // Highlighting objects is an internal concept.  Corresponds to selection in the tree view.
         mbHighlighted,
         // Set when the accessible object is selected.
         mbSelected,
         // Set when the accessible object is focused.
         mbFocused;
     private int
         mnRole;
 }
	/**************************************************************
	*
	* Licensed to the Apache Software Foundation (ASF) under one
	* or more contributor license agreements. See the NOTICE file
	* distributed with this work for additional information
	* regarding copyright ownership. The ASF licenses this file
	* to you under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing,
	* software distributed under the License is distributed on an
	* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
	* KIND, either express or implied. See the License for the
	* specific language governing permissions and limitations
	* under the License.
	*
	*************************************************************/



	package org.openoffice.accessibility.awb.canvas;

	import java.awt.Color;
	import java.awt.Dimension;
	import java.awt.Graphics2D;
	import java.awt.Point;
	import java.awt.Rectangle;
	import java.awt.geom.Point2D;
	import java.awt.geom.Rectangle2D;
	import java.awt.geom.AffineTransform;
	import java.awt.geom.NoninvertibleTransformException;


	import com.sun.star.accessibility.*;
	import com.sun.star.lang.EventObject;
	import com.sun.star.uno.UnoRuntime;


	class CanvasShape implements XAccessibleEventListener
	{
	public final Color maHighlightColor = Color.red;
	public final Color maSelectionColor = Color.green;
	public final Color maFocusColor = Color.blue;

	public CanvasShape (javax.swing.tree.TreeNode aNode, Canvas aCanvas)
	{
	maNode = aNode;
	msName = "<no name>";
	msDescription = "<no description>";
	maShape = new Rectangle2D.Double (-10,-10,10,10);
	maPosition = new Point (-10,-10);
	maSize = new Dimension (10,10);
	maFgColor = java.awt.Color.black;
	maBgColor = Color.blue;
	mnRole = -1;
	mbHighlighted = false;
	mbSelected = false;
	mbFocused = false;
	maCanvas = aCanvas;

	Update ();
	}




	public javax.swing.tree.TreePath getNodePath (javax.swing.tree.TreeNode node)
	{
	javax.swing.tree.TreeNode parent = node.getParent();
	return (parent != null) ?
	getNodePath(parent).pathByAddingChild(node) :
	new javax.swing.tree.TreePath(node);
	}

	public javax.swing.tree.TreePath getNodePath ()
	{
	return getNodePath(maNode);
	}



	/** Update the data obtained from the <type>AccessibilityNode</type>
	object.
	*/
	public void Update ()
	{
	if (maNode instanceof XAccessible) {
	mxContext = ((XAccessible) maNode).getAccessibleContext();
	mxComponent = (XAccessibleComponent)UnoRuntime.queryInterface(
	XAccessibleComponent.class, mxContext);
	}

	if (mxContext != null)
	{
	msName = mxContext.getAccessibleName();
	msDescription = mxContext.getAccessibleDescription();
	mnRole = mxContext.getAccessibleRole();

	// Extract the selected and focused flag.
	XAccessibleStateSet xStateSet = mxContext.getAccessibleStateSet ();
	if (xStateSet != null)
	{
	mbSelected = xStateSet.contains (AccessibleStateType.SELECTED);
	mbFocused = xStateSet.contains (AccessibleStateType.FOCUSED);
	}
	}

	UpdateGeometry ();

	if (mxComponent != null)
	{
	// Note: alpha values in office 0..255 have to be mapped to
	// 255..0 in Java
	Color aCol = new Color (mxComponent.getForeground(), true);
	maFgColor = new Color (aCol.getRed (),
	aCol.getGreen (),
	aCol.getBlue (),
	0xff - aCol.getAlpha ());
	aCol = new Color (mxComponent.getBackground(), true);
	maBgColor = new Color (aCol.getRed (),
	aCol.getGreen (),
	aCol.getBlue (),
	0xff - aCol.getAlpha ());
	}
	}



	public void UpdateGeometry ()
	{
	if (mxComponent != null)
	{
	com.sun.star.awt.Point aLocationOnScreen =
	mxComponent.getLocationOnScreen();
	com.sun.star.awt.Size aSizeOnScreen = mxComponent.getSize();
	maPosition = new Point (
	aLocationOnScreen.X,
	aLocationOnScreen.Y);
	maSize = new Dimension (
	aSizeOnScreen.Width,
	aSizeOnScreen.Height);
	}
	}



	/** Paint the object into the specified canvas. It is transformed
	according to the specified offset and scale.
	*/
	public void paint (
	Graphics2D g,
	boolean bShowDescription,
	boolean bShowName,
	boolean bShowText)
	{
	try{
	// Transform the object's position and size according to the
	// specified offset and scale.
	Point aLocation = new Point();
	maShape = new Rectangle2D.Double (
	maPosition.x,
	maPosition.y,
	maSize.width,
	maSize.height);
	maTransformation = g.getTransform();

	// Fill the object's bounding box with its background color if it
	// has no children.
	if (mxContext.getAccessibleChildCount() == 0)
	{
	g.setColor (maBgColor);
	g.fill (maShape);
	}

	// Remove alpha channel from color before drawing the frame.
	Color color = maFgColor;
	if (maFgColor.getAlpha()<128)
	color = new Color (maFgColor.getRed(), maFgColor.getGreen(), maFgColor.getBlue());
	g.setColor (color);
	g.draw (maShape);

	if (mbFocused)
	{
	g.setColor (maFocusColor);
	for (int x=0; x<=2; x++)
	for (int y=0; y<=2; y++)
	g.fill (
	new Rectangle2D.Double (
	maShape.x + x/2.0 * maShape.width-3,
	maShape.y + y/2.0 * maShape.height-3,
	6,
	6));
	}
	if (mbSelected)
	{
	g.setColor (maSelectionColor);
	for (int x=0; x<=2; x++)
	for (int y=0; y<=2; y++)
	g.draw (
	new Rectangle2D.Double (
	maShape.x + x/2.0 * maShape.width-2,
	maShape.y + y/2.0 * maShape.height-2,
	4,
	4));
	}

	// Write the object's text OR name and description.
	g.setColor (maFgColor);
	if (bShowName)
	paintName (g);
	if (bShowDescription)
	paintDescription (g);
	if (bShowText)
	paintText (g);
	}
	catch (Exception e)
	{ // don't care
	}
	}


	public void paint_highlight (Graphics2D g)
	{
	if (mbHighlighted)
	g.setColor (maHighlightColor);
	else
	g.setColor (maFgColor);
	g.draw (maShape);
	}




	private void paintName (Graphics2D g)
	{
	g.drawString ("Name: " + msName,
	(float)maShape.x+5,
	(float)maShape.y+15);
	}



	private void paintDescription (Graphics2D g)
	{
	g.drawString ("Description: " + msDescription,
	(float)maShape.x+5,
	(float)maShape.y+35);
	}




	private void paintText (Graphics2D g)
	{
	XAccessibleText xText = null;
	// get XAccessibleText
	xText = (XAccessibleText)UnoRuntime.queryInterface(
	XAccessibleText.class, mxContext);

	// Draw every character in the text string.
	if (xText != null)
	{
	String sText = xText.getText();
	try
	{
	for(int i = 0; i < sText.length(); i++)
	{
	com.sun.star.awt.Rectangle aRect =
	xText.getCharacterBounds(i);

	double x = maShape.x + aRect.X;
	double y = maShape.y + aRect.Y + aRect.Height;

	g.drawString (sText.substring(i, i+1), (float)x, (float)y);
	}
	}
	catch (com.sun.star.lang.IndexOutOfBoundsException e)
	{}
	}
	}


	/** Compute whether the specified point lies inside the object's
	bounding box.
	*/
	public boolean Contains (int x, int y)
	{
	Point2D aPosition = new Point2D.Double (x,y);
	try
	{
	maTransformation.inverseTransform (aPosition, aPosition);
	// System.out.println ("transformed "+x+","+y+" to "+aPosition);
	}
	catch (NoninvertibleTransformException aException)
	{
	return false;
	}
	return (maShape.contains (aPosition));
	}

	public void Highlight (boolean bFlag)
	{
	mbHighlighted = bFlag;
	}

	public boolean IsHighlighted ()
	{
	return mbHighlighted;
	}

	public Rectangle GetBBox ()
	{
	return new Rectangle (maPosition, maSize);
	}

	public Point getOrigin ()
	{
	return maPosition;
	}

	public Dimension GetSize ()
	{
	return maSize;
	}

	public int getRole ()
	{
	return mnRole;
	}

	public XAccessibleContext getContext ()
	{
	return mxContext;
	}

	public XAccessibleComponent getComponent ()
	{
	return mxComponent;
	}

	public String toString ()
	{
	return ">"+msName+", "+msDescription+" +"+maPosition.x+"+"+maPosition.y
	+"x"+maSize.width+"x"+maSize.height+"<";
	}

	/** */
	public void notifyEvent(com.sun.star.accessibility.AccessibleEventObject aEvent) {
	try {
	switch (aEvent.EventId) {
	case AccessibleEventId.BOUNDRECT_CHANGED:
	case AccessibleEventId.VISIBLE_DATA_CHANGED:
	UpdateGeometry ();
	maCanvas.repaint();
	break;
	default:
	break;
	}
	} catch (Exception aException) {
	System.err.println ("caught exception while updating a shape:"
	+ aException);
	aException.printStackTrace (System.err);
	}
	}

	/** Callback for disposing events.
	*/
	public void disposing (com.sun.star.lang.EventObject e)
	{
	System.out.println ("Disposing");
	}




	private Canvas
	maCanvas;
	private javax.swing.tree.TreeNode
	maNode;
	private XAccessibleContext
	mxContext;
	private XAccessibleComponent
	mxComponent;
	private String
	msDescription,
	msName;
	private Rectangle2D.Double maShape;
	private AffineTransform maTransformation;
	private Point maPosition;
	private Dimension
	maTransformedSize,
	maSize;
	private Color
	maFgColor,
	maBgColor;
	private boolean
	// Highlighting objects is an internal concept. Corresponds to selection in the tree view.
	mbHighlighted,
	// Set when the accessible object is selected.
	mbSelected,
	// Set when the accessible object is focused.
	mbFocused;
	private int
	mnRole;
	}