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3  * Licensed to the Apache Software Foundation (ASF) under one
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8  * "License"); you may not use this file except in compliance
9  * with the License.  You may obtain a copy of the License at
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16  * KIND, either express or implied.  See the License for the
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20  *************************************************************/
21 
22 import java.awt.*;
23 import javax.swing.*;
24 import javax.swing.tree.*;
25 import java.awt.geom.Rectangle2D;
26 
27 import com.sun.star.beans.XPropertyChangeListener;
28 import com.sun.star.beans.PropertyChangeEvent;
29 
30 import com.sun.star.accessibility.XAccessible;
31 import com.sun.star.accessibility.XAccessibleContext;
32 import com.sun.star.accessibility.XAccessibleComponent;
33 import com.sun.star.accessibility.XAccessibleExtendedComponent;
34 import com.sun.star.accessibility.XAccessibleText;
35 import com.sun.star.accessibility.XAccessibleStateSet;
36 import com.sun.star.accessibility.AccessibleStateType;
37 
38 class CanvasShape
39 {
40     public final Color maHighlightColor = Color.red;
41     public final Color maSelectionColor = Color.green;
42     public final Color maFocusColor = Color.blue;
43 
44     //    public AccessibleObject (XAccessibleContext xContext, TreePath aPath)
CanvasShape(AccTreeNode aNode)45     public CanvasShape (AccTreeNode aNode)
46     {
47         maNode = aNode;
48         mxContext = aNode.getContext();
49         msName = "name unknown";
50         msDescription = "description unknown";
51         maShape = new Rectangle2D.Double (-10,-10,10,10);
52         maPosition = new Point (-10,-10);
53         maSize = new Dimension (10,10);
54         maFgColor = java.awt.Color.black;
55         maBgColor = Color.blue;
56         mnRole = -1;
57         mbHighlighted = false;
58         mbSelected = false;
59         mbFocused = false;
60         mxComponent = aNode.getComponent();
61 
62         update ();
63     }
64 
65 
66 
67     /** Update the data obtained from the xAccessible.
68     */
update()69     public void update ()
70     {
71         if (mxContext != null)
72         {
73             msName = mxContext.getAccessibleName();
74             msDescription = mxContext.getAccessibleDescription();
75             mnRole = mxContext.getAccessibleRole();
76 
77             // Extract the selected and focused flag.
78             XAccessibleStateSet xStateSet = mxContext.getAccessibleStateSet ();
79             if (xStateSet != null)
80             {
81                 mbSelected = xStateSet.contains (AccessibleStateType.SELECTED);
82                 mbFocused = xStateSet.contains (AccessibleStateType.FOCUSED);
83             }
84         }
85 
86         updateGeometry ();
87         if (mxComponent != null)
88         {
89             // Note: alpha values in office 0..255 have to be mapped to
90             //       255..0 in Java
91             Color aCol = new Color (mxComponent.getForeground(), true);
92             maFgColor = new Color (aCol.getRed (),
93                                    aCol.getGreen (),
94                                    aCol.getBlue (),
95                                    0xff - aCol.getAlpha ());
96             aCol = new Color (mxComponent.getBackground(), true);
97             maBgColor = new Color (aCol.getRed (),
98                                    aCol.getGreen (),
99                                    aCol.getBlue (),
100                                    0xff - aCol.getAlpha ());
101         }
102     }
103 
updateGeometry()104     public void updateGeometry ()
105     {
106         if (mxComponent != null)
107         {
108             com.sun.star.awt.Point aLocationOnScreen = mxComponent.getLocationOnScreen();
109             com.sun.star.awt.Size aSizeOnScreen = mxComponent.getSize();
110             maPosition = new Point (
111                 aLocationOnScreen.X,
112                 aLocationOnScreen.Y);
113             maSize = new Dimension (
114                 aSizeOnScreen.Width,
115                 aSizeOnScreen.Height);
116         }
117     }
118 
119 
120     /** Paint the object into the specified canvas.  It is transformed
121         according to the specified offset and scale.
122     */
paint(Graphics2D g, double nXOffset, double nYOffset, double nScaleFactor, boolean bShowDescription, boolean bShowName, boolean bShowText)123     public void paint (Graphics2D g,
124         double nXOffset, double nYOffset, double nScaleFactor,
125         boolean bShowDescription, boolean bShowName, boolean bShowText)
126     {
127         try{
128             // Transform the object's position and size according to the
129             // specified offset and scale.
130             Point aLocation = new Point();
131             maShape = new Rectangle2D.Double (
132                 maPosition.x * nScaleFactor + nXOffset,
133                 maPosition.y * nScaleFactor + nYOffset,
134                 maSize.width * nScaleFactor,
135                 maSize.height * nScaleFactor);
136 
137             // Fill the object's bounding box with its background color if it
138             // has no children.
139             if (mxContext.getAccessibleChildCount() == 0)
140             {
141                 g.setColor (maBgColor);
142                 g.fill (maShape);
143             }
144 
145             // Remove alpha channel from color before drawing the frame.
146             Color color = maFgColor;
147             if (maFgColor.getAlpha()<128)
148                 color = new Color (maFgColor.getRed(), maFgColor.getGreen(), maFgColor.getBlue());
149             g.setColor (color);
150             g.draw (maShape);
151 
152             if (mbFocused)
153             {
154                 g.setColor (maFocusColor);
155                 for (int x=0; x<=2; x++)
156                     for (int y=0; y<=2; y++)
157                         g.fill (
158                             new Rectangle2D.Double (
159                                 maShape.x + x/2.0 * maShape.width-3,
160                                 maShape.y + y/2.0 * maShape.height-3,
161                                 6,
162                                 6));
163             }
164             if (mbSelected)
165             {
166                 g.setColor (maSelectionColor);
167                 for (int x=0; x<=2; x++)
168                     for (int y=0; y<=2; y++)
169                         g.draw (
170                             new Rectangle2D.Double (
171                                 maShape.x + x/2.0 * maShape.width-2,
172                                 maShape.y + y/2.0 * maShape.height-2,
173                                 4,
174                                 4));
175             }
176 
177             // Write the object's text OR name and description.
178             g.setColor (maFgColor);
179             if (bShowName)
180                 paintName (g);
181             if (bShowDescription)
182                 paintDescription (g);
183             if (bShowText)
184                 paintText (g);
185         }
186         catch (Exception e)
187         { // don't care
188         }
189     }
190 
paint_highlight(Graphics2D g, double nXOffset, double nYOffset, double nScaleFactor)191     public void paint_highlight (Graphics2D g,
192         double nXOffset, double nYOffset, double nScaleFactor)
193     {
194         if (mbHighlighted)
195             g.setColor (maHighlightColor);
196         else
197             g.setColor (maFgColor);
198         g.draw (maShape);
199     }
200 
201 
202 
203 
paintName(Graphics2D g)204     private void paintName (Graphics2D g)
205     {
206         g.drawString ("Name: " + msName,
207             (float)maShape.x+5,
208             (float)maShape.y+15);
209     }
210 
211 
212 
paintDescription(Graphics2D g)213     private void paintDescription (Graphics2D g)
214     {
215         g.drawString ("Description: " + msDescription,
216             (float)maShape.x+5,
217             (float)maShape.y+35);
218     }
219 
220 
221 
222 
paintText(Graphics2D g)223     private void paintText (Graphics2D g)
224     {
225         XAccessibleText xText = null;
226         // get XAccessibleText
227         xText = maNode.getText();
228 
229         // Draw every character in the text string.
230         if (xText != null)
231         {
232             String sText = xText.getText();
233             try
234             {
235                 for(int i = 0; i < sText.length(); i++)
236                 {
237                     com.sun.star.awt.Rectangle aRect =
238                         xText.getCharacterBounds(i);
239 
240                     double x = maShape.x + aRect.X;
241                     double y = maShape.y + aRect.Y + aRect.Height;
242 
243                     g.drawString(sText.substring(i, i+1), (float)x, (float)y);
244                 }
245             }
246             catch (com.sun.star.lang.IndexOutOfBoundsException e)
247             {}
248         }
249     }
250 
251 
252 
253 
254     /** Callback for disposing events.
255     */
disposing(com.sun.star.lang.EventObject e)256     public void disposing (com.sun.star.lang.EventObject e)
257     {
258         System.out.println ("Disposing");
259     }
260 
261 
262 
263 
264     /** Compute whether the specified point lies inside the object's
265         bounding box.
266     */
contains(int x, int y)267     public boolean contains (int x, int y)
268     {
269         return (maShape.contains (x,y));
270     }
271 
highlight()272     public void highlight ()
273     {
274         mbHighlighted = true;
275     }
276 
unhighlight()277     public void unhighlight ()
278     {
279         mbHighlighted = false;
280     }
281 
isHighlighted()282     public boolean isHighlighted ()
283     {
284         return mbHighlighted;
285     }
286 
getBBox()287     public Rectangle getBBox ()
288     {
289         return new Rectangle (maPosition, maSize);
290     }
291 
getOrigin()292     public Point getOrigin ()
293     {
294         return maPosition;
295     }
296 
getPath()297     public TreePath getPath ()
298     {
299         return new TreePath (maNode.createPath());
300     }
301 
getRole()302     public int getRole ()
303     {
304         return mnRole;
305     }
306 
getContext()307     public XAccessibleContext getContext ()
308     {
309         return mxContext;
310     }
311 
getComponent()312     public XAccessibleComponent getComponent ()
313     {
314         return mxComponent;
315     }
316 
toString()317     public String toString ()
318     {
319         return ">"+msName+", "+msDescription+" +"+maPosition.x+"+"+maPosition.y
320             +"x"+maSize.width+"x"+maSize.height+"<";
321     }
322 
323     private AccTreeNode
324         maNode;
325     private XAccessibleContext
326         mxContext;
327     private XAccessibleComponent
328         mxComponent;
329     private String
330         msDescription,
331         msName;
332     private Rectangle2D.Double
333         maShape;
334     private Point
335         maPosition;
336     private Dimension
337         maTransformedSize,
338         maSize;
339     private Color
340         maFgColor,
341         maBgColor;
342     private boolean
343         // Highlighting objects is an internal concept.  Corresponds to selection in the tree view.
344         mbHighlighted,
345         // Set when the accessible object is selected.
346         mbSelected,
347         // Set when the accessible object is focused.
348         mbFocused;
349     private int
350         mnRole;
351 }
352