1*cdf0e10cSrcweir import java.util.*; 2*cdf0e10cSrcweir import java.awt.*; 3*cdf0e10cSrcweir import java.awt.event.*; 4*cdf0e10cSrcweir import javax.swing.*; 5*cdf0e10cSrcweir import javax.swing.tree.*; 6*cdf0e10cSrcweir import javax.swing.event.TreeSelectionListener; 7*cdf0e10cSrcweir import javax.swing.event.TreeSelectionEvent; 8*cdf0e10cSrcweir import java.awt.geom.Rectangle2D; 9*cdf0e10cSrcweir 10*cdf0e10cSrcweir import com.sun.star.accessibility.XAccessible; 11*cdf0e10cSrcweir import com.sun.star.accessibility.XAccessibleContext; 12*cdf0e10cSrcweir import com.sun.star.accessibility.XAccessibleComponent; 13*cdf0e10cSrcweir 14*cdf0e10cSrcweir /** This canvas displays accessible objects graphically. Each accessible 15*cdf0e10cSrcweir object with graphical representation is represented by an 16*cdf0e10cSrcweir CanvasShape object and has to be added by the 17*cdf0e10cSrcweir <member>addAccessible</member> member function. 18*cdf0e10cSrcweir 19*cdf0e10cSrcweir <p>The canvas listens to selection events of the associated JTree and 20*cdf0e10cSrcweir highlights the first selected node of that tree.</p> 21*cdf0e10cSrcweir */ 22*cdf0e10cSrcweir class Canvas 23*cdf0e10cSrcweir extends JPanel 24*cdf0e10cSrcweir implements MouseListener, MouseMotionListener, TreeSelectionListener//, Scrollable 25*cdf0e10cSrcweir { 26*cdf0e10cSrcweir // This constant can be passed to SetZoomMode to always show the whole screen. 27*cdf0e10cSrcweir public static final int WHOLE_SCREEN = -1; 28*cdf0e10cSrcweir 29*cdf0e10cSrcweir public Canvas () 30*cdf0e10cSrcweir { 31*cdf0e10cSrcweir super (true); 32*cdf0e10cSrcweir maObjects = new java.util.HashMap (); 33*cdf0e10cSrcweir maNodes = new Vector (); 34*cdf0e10cSrcweir maObjectList = new Vector (); 35*cdf0e10cSrcweir maContexts = new Vector (); 36*cdf0e10cSrcweir addMouseListener (this); 37*cdf0e10cSrcweir addMouseMotionListener (this); 38*cdf0e10cSrcweir maBoundingBox = new Rectangle (0,0,100,100); 39*cdf0e10cSrcweir maTree = null; 40*cdf0e10cSrcweir mnHOffset = 0; 41*cdf0e10cSrcweir mnVOffset = 0; 42*cdf0e10cSrcweir mnScale = 1; 43*cdf0e10cSrcweir setShowText(false); 44*cdf0e10cSrcweir setShowDescriptions (true); 45*cdf0e10cSrcweir setShowNames (true); 46*cdf0e10cSrcweir setAntialiasing (true); 47*cdf0e10cSrcweir maLastWidgetSize = new Dimension (0,0); 48*cdf0e10cSrcweir } 49*cdf0e10cSrcweir 50*cdf0e10cSrcweir /** Tell the canvas which tree view to use to highlight accessible 51*cdf0e10cSrcweir objects. 52*cdf0e10cSrcweir */ 53*cdf0e10cSrcweir public void setTree (JTree aTree) 54*cdf0e10cSrcweir { 55*cdf0e10cSrcweir if (maTree != null) 56*cdf0e10cSrcweir maTree.removeTreeSelectionListener (this); 57*cdf0e10cSrcweir maTree = aTree; 58*cdf0e10cSrcweir if (maTree != null) 59*cdf0e10cSrcweir maTree.addTreeSelectionListener (this); 60*cdf0e10cSrcweir } 61*cdf0e10cSrcweir 62*cdf0e10cSrcweir 63*cdf0e10cSrcweir 64*cdf0e10cSrcweir 65*cdf0e10cSrcweir public void addNode (AccTreeNode aNode) 66*cdf0e10cSrcweir { 67*cdf0e10cSrcweir if (maNodes.indexOf (aNode) == -1) 68*cdf0e10cSrcweir { 69*cdf0e10cSrcweir maNodes.add (aNode); 70*cdf0e10cSrcweir 71*cdf0e10cSrcweir CanvasShape aObject = (CanvasShape) maObjects.get (aNode); 72*cdf0e10cSrcweir if (aObject == null) 73*cdf0e10cSrcweir { 74*cdf0e10cSrcweir aObject = new CanvasShape (aNode); 75*cdf0e10cSrcweir // Update bounding box that includes all objects. 76*cdf0e10cSrcweir if (maObjects.size() == 0) 77*cdf0e10cSrcweir maBoundingBox = aObject.getBBox(); 78*cdf0e10cSrcweir else 79*cdf0e10cSrcweir maBoundingBox = maBoundingBox.union (aObject.getBBox()); 80*cdf0e10cSrcweir 81*cdf0e10cSrcweir maObjects.put (aNode, aObject); 82*cdf0e10cSrcweir maObjectList.add (aObject); 83*cdf0e10cSrcweir 84*cdf0e10cSrcweir } 85*cdf0e10cSrcweir repaint (); 86*cdf0e10cSrcweir } 87*cdf0e10cSrcweir } 88*cdf0e10cSrcweir 89*cdf0e10cSrcweir public void removeNode (AccTreeNode aNode) 90*cdf0e10cSrcweir { 91*cdf0e10cSrcweir int i = maNodes.indexOf (aNode); 92*cdf0e10cSrcweir if( i != -1 ) 93*cdf0e10cSrcweir { 94*cdf0e10cSrcweir Object aObject = maObjects.get(aNode); 95*cdf0e10cSrcweir maObjectList.remove (aObject); 96*cdf0e10cSrcweir maObjects.remove (aObject); 97*cdf0e10cSrcweir maNodes.remove (aNode); 98*cdf0e10cSrcweir repaint (); 99*cdf0e10cSrcweir } 100*cdf0e10cSrcweir } 101*cdf0e10cSrcweir 102*cdf0e10cSrcweir public void updateNode (AccTreeNode aNode) 103*cdf0e10cSrcweir { 104*cdf0e10cSrcweir int i = maNodes.indexOf (aNode); 105*cdf0e10cSrcweir if (i != -1) 106*cdf0e10cSrcweir { 107*cdf0e10cSrcweir CanvasShape aObject = (CanvasShape)maObjects.get(aNode); 108*cdf0e10cSrcweir if (aObject != null) 109*cdf0e10cSrcweir aObject.update(); 110*cdf0e10cSrcweir } 111*cdf0e10cSrcweir } 112*cdf0e10cSrcweir 113*cdf0e10cSrcweir public void updateNodeGeometry (AccTreeNode aNode) 114*cdf0e10cSrcweir { 115*cdf0e10cSrcweir CanvasShape aObject = (CanvasShape)maObjects.get(aNode); 116*cdf0e10cSrcweir if (aObject != null) 117*cdf0e10cSrcweir aObject.updateGeometry(); 118*cdf0e10cSrcweir } 119*cdf0e10cSrcweir 120*cdf0e10cSrcweir public void clear () 121*cdf0e10cSrcweir { 122*cdf0e10cSrcweir while (maNodes.size() > 0) 123*cdf0e10cSrcweir removeNode ((AccTreeNode)maNodes.elementAt(0)); 124*cdf0e10cSrcweir 125*cdf0e10cSrcweir maNodes.clear(); 126*cdf0e10cSrcweir maObjects.clear(); 127*cdf0e10cSrcweir maObjectList.clear(); 128*cdf0e10cSrcweir } 129*cdf0e10cSrcweir 130*cdf0e10cSrcweir public boolean getShowDescriptions () 131*cdf0e10cSrcweir { 132*cdf0e10cSrcweir return Options.GetBoolean ("ShowDescriptions"); 133*cdf0e10cSrcweir } 134*cdf0e10cSrcweir 135*cdf0e10cSrcweir public void setShowDescriptions (boolean bNewValue) 136*cdf0e10cSrcweir { 137*cdf0e10cSrcweir Options.SetBoolean ("ShowDescriptions", bNewValue); 138*cdf0e10cSrcweir repaint (); 139*cdf0e10cSrcweir } 140*cdf0e10cSrcweir 141*cdf0e10cSrcweir public boolean getShowNames () 142*cdf0e10cSrcweir { 143*cdf0e10cSrcweir return Options.GetBoolean ("ShowNames"); 144*cdf0e10cSrcweir } 145*cdf0e10cSrcweir 146*cdf0e10cSrcweir public void setShowNames (boolean bNewValue) 147*cdf0e10cSrcweir { 148*cdf0e10cSrcweir Options.SetBoolean ("ShowNames", bNewValue); 149*cdf0e10cSrcweir repaint (); 150*cdf0e10cSrcweir } 151*cdf0e10cSrcweir 152*cdf0e10cSrcweir public boolean getAntialiasing () 153*cdf0e10cSrcweir { 154*cdf0e10cSrcweir return Options.GetBoolean ("Antialiasing"); 155*cdf0e10cSrcweir } 156*cdf0e10cSrcweir 157*cdf0e10cSrcweir public void setAntialiasing (boolean bNewValue) 158*cdf0e10cSrcweir { 159*cdf0e10cSrcweir Options.SetBoolean ("Antialiasing", bNewValue); 160*cdf0e10cSrcweir repaint (); 161*cdf0e10cSrcweir } 162*cdf0e10cSrcweir 163*cdf0e10cSrcweir public boolean getShowText () 164*cdf0e10cSrcweir { 165*cdf0e10cSrcweir return Options.GetBoolean ("ShowText"); 166*cdf0e10cSrcweir } 167*cdf0e10cSrcweir 168*cdf0e10cSrcweir public void setShowText (boolean bNewValue) 169*cdf0e10cSrcweir { 170*cdf0e10cSrcweir Options.SetBoolean ("ShowText", bNewValue); 171*cdf0e10cSrcweir repaint (); 172*cdf0e10cSrcweir } 173*cdf0e10cSrcweir 174*cdf0e10cSrcweir public void setZoomMode (int nZoomMode) 175*cdf0e10cSrcweir { 176*cdf0e10cSrcweir Options.SetInteger ("ZoomMode", nZoomMode); 177*cdf0e10cSrcweir repaint (); 178*cdf0e10cSrcweir } 179*cdf0e10cSrcweir 180*cdf0e10cSrcweir public int getZoomMode () 181*cdf0e10cSrcweir { 182*cdf0e10cSrcweir return Options.GetInteger ("ZoomMode", WHOLE_SCREEN); 183*cdf0e10cSrcweir } 184*cdf0e10cSrcweir 185*cdf0e10cSrcweir 186*cdf0e10cSrcweir public void paintComponent (Graphics g) 187*cdf0e10cSrcweir { 188*cdf0e10cSrcweir synchronized (g) 189*cdf0e10cSrcweir { 190*cdf0e10cSrcweir super.paintComponent (g); 191*cdf0e10cSrcweir 192*cdf0e10cSrcweir Graphics2D g2 = (Graphics2D)g; 193*cdf0e10cSrcweir if (getAntialiasing()) 194*cdf0e10cSrcweir g2.setRenderingHint (RenderingHints.KEY_ANTIALIASING, 195*cdf0e10cSrcweir RenderingHints.VALUE_ANTIALIAS_ON); 196*cdf0e10cSrcweir else 197*cdf0e10cSrcweir g2.setRenderingHint (RenderingHints.KEY_ANTIALIASING, 198*cdf0e10cSrcweir RenderingHints.VALUE_ANTIALIAS_OFF); 199*cdf0e10cSrcweir 200*cdf0e10cSrcweir setupTransformation (); 201*cdf0e10cSrcweir 202*cdf0e10cSrcweir // Draw the screen representation to give a hint of the location of the 203*cdf0e10cSrcweir // accessible object on the screen. 204*cdf0e10cSrcweir Dimension aScreenSize = Toolkit.getDefaultToolkit().getScreenSize(); 205*cdf0e10cSrcweir Rectangle2D.Double aScreen = new Rectangle2D.Double ( 206*cdf0e10cSrcweir mnHOffset, 207*cdf0e10cSrcweir mnVOffset, 208*cdf0e10cSrcweir mnScale*aScreenSize.getWidth(), 209*cdf0e10cSrcweir mnScale*aScreenSize.getHeight()); 210*cdf0e10cSrcweir // Fill the screen rectangle and draw a frame arround it to increase its visibility. 211*cdf0e10cSrcweir g2.setColor (new Color (250,240,230)); 212*cdf0e10cSrcweir g2.fill (aScreen); 213*cdf0e10cSrcweir g2.setColor (Color.BLACK); 214*cdf0e10cSrcweir g2.draw (aScreen); 215*cdf0e10cSrcweir 216*cdf0e10cSrcweir synchronized (maObjectList) 217*cdf0e10cSrcweir { 218*cdf0e10cSrcweir int nCount = maObjectList.size(); 219*cdf0e10cSrcweir boolean bShowDescriptions = getShowDescriptions(); 220*cdf0e10cSrcweir boolean bShowNames = getShowNames(); 221*cdf0e10cSrcweir boolean bShowText = getShowText(); 222*cdf0e10cSrcweir for (int i=0; i<nCount; i++) 223*cdf0e10cSrcweir { 224*cdf0e10cSrcweir CanvasShape aCanvasShape = (CanvasShape)maObjectList.elementAt(i); 225*cdf0e10cSrcweir aCanvasShape.paint ( 226*cdf0e10cSrcweir g2, 227*cdf0e10cSrcweir mnHOffset, mnVOffset, mnScale, 228*cdf0e10cSrcweir bShowDescriptions, bShowNames, bShowText); 229*cdf0e10cSrcweir } 230*cdf0e10cSrcweir } 231*cdf0e10cSrcweir 232*cdf0e10cSrcweir // Paint highlighted frame around active object as the last thing. 233*cdf0e10cSrcweir if (maActiveObject != null) 234*cdf0e10cSrcweir maActiveObject.paint_highlight ( 235*cdf0e10cSrcweir g2, 236*cdf0e10cSrcweir mnHOffset, mnVOffset, mnScale); 237*cdf0e10cSrcweir } 238*cdf0e10cSrcweir } 239*cdf0e10cSrcweir 240*cdf0e10cSrcweir 241*cdf0e10cSrcweir 242*cdf0e10cSrcweir 243*cdf0e10cSrcweir /** Set up the transformation so that the graphical display can show a 244*cdf0e10cSrcweir centered representation of the whole screen. 245*cdf0e10cSrcweir */ 246*cdf0e10cSrcweir private void setupTransformation () 247*cdf0e10cSrcweir { 248*cdf0e10cSrcweir // Turn off scrollbars when showing the whole screen. Otherwise show them when needed. 249*cdf0e10cSrcweir JViewport aViewport = (JViewport)getParent(); 250*cdf0e10cSrcweir JScrollPane aScrollPane = (JScrollPane)aViewport.getParent(); 251*cdf0e10cSrcweir int nZoomMode = getZoomMode(); 252*cdf0e10cSrcweir if (nZoomMode == WHOLE_SCREEN) 253*cdf0e10cSrcweir { 254*cdf0e10cSrcweir if (aScrollPane.getHorizontalScrollBarPolicy() 255*cdf0e10cSrcweir != JScrollPane.HORIZONTAL_SCROLLBAR_NEVER) 256*cdf0e10cSrcweir aScrollPane.setHorizontalScrollBarPolicy (JScrollPane.HORIZONTAL_SCROLLBAR_NEVER); 257*cdf0e10cSrcweir if (aScrollPane.getVerticalScrollBarPolicy() 258*cdf0e10cSrcweir != JScrollPane.VERTICAL_SCROLLBAR_NEVER) 259*cdf0e10cSrcweir aScrollPane.setVerticalScrollBarPolicy (JScrollPane.VERTICAL_SCROLLBAR_NEVER); 260*cdf0e10cSrcweir } 261*cdf0e10cSrcweir else 262*cdf0e10cSrcweir { 263*cdf0e10cSrcweir if (aScrollPane.getHorizontalScrollBarPolicy() 264*cdf0e10cSrcweir != JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED) 265*cdf0e10cSrcweir aScrollPane.setHorizontalScrollBarPolicy (JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED); 266*cdf0e10cSrcweir if (aScrollPane.getVerticalScrollBarPolicy() 267*cdf0e10cSrcweir != JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED) 268*cdf0e10cSrcweir aScrollPane.setVerticalScrollBarPolicy (JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED); 269*cdf0e10cSrcweir } 270*cdf0e10cSrcweir 271*cdf0e10cSrcweir Dimension aScreenSize = Toolkit.getDefaultToolkit().getScreenSize(); 272*cdf0e10cSrcweir Dimension aWidgetSize = aViewport.getSize(); 273*cdf0e10cSrcweir { 274*cdf0e10cSrcweir if ((aScreenSize.getWidth() > 0) && (aScreenSize.getHeight() > 0)) 275*cdf0e10cSrcweir { 276*cdf0e10cSrcweir if (nZoomMode == WHOLE_SCREEN) 277*cdf0e10cSrcweir { 278*cdf0e10cSrcweir // Calculate the scales that would map the screen onto the 279*cdf0e10cSrcweir // widget in both of the coordinate axes and select the 280*cdf0e10cSrcweir // smaller 281*cdf0e10cSrcweir // of the two: it maps the screen onto the widget in both 282*cdf0e10cSrcweir // axes at the same time. 283*cdf0e10cSrcweir double nHScale = (aWidgetSize.getWidth() - 10) / aScreenSize.getWidth(); 284*cdf0e10cSrcweir double nVScale = (aWidgetSize.getHeight() - 10) / aScreenSize.getHeight(); 285*cdf0e10cSrcweir if (nHScale < nVScale) 286*cdf0e10cSrcweir mnScale = nHScale; 287*cdf0e10cSrcweir else 288*cdf0e10cSrcweir mnScale = nVScale; 289*cdf0e10cSrcweir } 290*cdf0e10cSrcweir else 291*cdf0e10cSrcweir { 292*cdf0e10cSrcweir mnScale = nZoomMode / 100.0; 293*cdf0e10cSrcweir } 294*cdf0e10cSrcweir 295*cdf0e10cSrcweir // Calculate offsets that center the scaled screen inside the widget. 296*cdf0e10cSrcweir mnHOffset = (aWidgetSize.getWidth() - mnScale*aScreenSize.getWidth()) / 2.0; 297*cdf0e10cSrcweir mnVOffset = (aWidgetSize.getHeight() - mnScale*aScreenSize.getHeight()) / 2.0; 298*cdf0e10cSrcweir if (mnHOffset < 0) 299*cdf0e10cSrcweir mnHOffset = 0; 300*cdf0e10cSrcweir if (mnVOffset < 0) 301*cdf0e10cSrcweir mnVOffset = 0; 302*cdf0e10cSrcweir 303*cdf0e10cSrcweir setPreferredSize (new Dimension ( 304*cdf0e10cSrcweir (int)(2*mnHOffset + mnScale * aScreenSize.getWidth()), 305*cdf0e10cSrcweir (int)(2*mnVOffset + mnScale * aScreenSize.getHeight()))); 306*cdf0e10cSrcweir revalidate (); 307*cdf0e10cSrcweir } 308*cdf0e10cSrcweir else 309*cdf0e10cSrcweir { 310*cdf0e10cSrcweir // In case of a degenerate (not yet initialized?) screen size 311*cdf0e10cSrcweir // use some meaningless default values. 312*cdf0e10cSrcweir mnScale = 1; 313*cdf0e10cSrcweir mnHOffset = 0; 314*cdf0e10cSrcweir mnVOffset = 0; 315*cdf0e10cSrcweir } 316*cdf0e10cSrcweir } 317*cdf0e10cSrcweir maLastWidgetSize = aWidgetSize; 318*cdf0e10cSrcweir } 319*cdf0e10cSrcweir 320*cdf0e10cSrcweir 321*cdf0e10cSrcweir 322*cdf0e10cSrcweir /** Call getAccessibleAt to determine accessible object under mouse. 323*cdf0e10cSrcweir */ 324*cdf0e10cSrcweir public void mouseClicked (MouseEvent e) 325*cdf0e10cSrcweir { 326*cdf0e10cSrcweir } 327*cdf0e10cSrcweir 328*cdf0e10cSrcweir public void mousePressed (MouseEvent e) 329*cdf0e10cSrcweir { 330*cdf0e10cSrcweir CanvasShape aObjectUnderMouse = FindCanvasShapeUnderMouse (e); 331*cdf0e10cSrcweir highlightObject (aObjectUnderMouse); 332*cdf0e10cSrcweir if ((e.getModifiers() & InputEvent.CTRL_MASK) != 0) 333*cdf0e10cSrcweir { 334*cdf0e10cSrcweir maTree.expandPath (aObjectUnderMouse.getPath()); 335*cdf0e10cSrcweir } 336*cdf0e10cSrcweir } 337*cdf0e10cSrcweir 338*cdf0e10cSrcweir public void mouseReleased (MouseEvent e) 339*cdf0e10cSrcweir { 340*cdf0e10cSrcweir } 341*cdf0e10cSrcweir 342*cdf0e10cSrcweir public void mouseEntered (MouseEvent e) 343*cdf0e10cSrcweir { 344*cdf0e10cSrcweir } 345*cdf0e10cSrcweir 346*cdf0e10cSrcweir public void mouseExited (MouseEvent e) 347*cdf0e10cSrcweir { 348*cdf0e10cSrcweir // Deselect currently active object. 349*cdf0e10cSrcweir if (maActiveObject != null) 350*cdf0e10cSrcweir { 351*cdf0e10cSrcweir maActiveObject.unhighlight (); 352*cdf0e10cSrcweir maActiveObject = null; 353*cdf0e10cSrcweir repaint (); 354*cdf0e10cSrcweir } 355*cdf0e10cSrcweir } 356*cdf0e10cSrcweir 357*cdf0e10cSrcweir public void mouseDragged (MouseEvent e) 358*cdf0e10cSrcweir { 359*cdf0e10cSrcweir } 360*cdf0e10cSrcweir 361*cdf0e10cSrcweir public void mouseMoved (MouseEvent e) 362*cdf0e10cSrcweir { 363*cdf0e10cSrcweir if ((e.getModifiers() & InputEvent.SHIFT_MASK) != 0) 364*cdf0e10cSrcweir highlightObject (FindCanvasShapeUnderMouse (e)); 365*cdf0e10cSrcweir } 366*cdf0e10cSrcweir 367*cdf0e10cSrcweir protected CanvasShape FindCanvasShapeUnderMouse (MouseEvent e) 368*cdf0e10cSrcweir { 369*cdf0e10cSrcweir int nObjects = maObjects.size(); 370*cdf0e10cSrcweir CanvasShape aObjectUnderMouse = null; 371*cdf0e10cSrcweir int nCount = maObjectList.size(); 372*cdf0e10cSrcweir for (int i=nCount-1; i>=0; --i) 373*cdf0e10cSrcweir { 374*cdf0e10cSrcweir CanvasShape aObject = (CanvasShape)maObjectList.elementAt(i); 375*cdf0e10cSrcweir if (aObject != null) 376*cdf0e10cSrcweir if (aObject.contains (e.getX(),e.getY())) 377*cdf0e10cSrcweir { 378*cdf0e10cSrcweir aObjectUnderMouse = aObject; 379*cdf0e10cSrcweir break; 380*cdf0e10cSrcweir } 381*cdf0e10cSrcweir } 382*cdf0e10cSrcweir return aObjectUnderMouse; 383*cdf0e10cSrcweir } 384*cdf0e10cSrcweir 385*cdf0e10cSrcweir protected boolean highlightObject (CanvasShape aNewActiveObject) 386*cdf0e10cSrcweir { 387*cdf0e10cSrcweir if (aNewActiveObject != maActiveObject) 388*cdf0e10cSrcweir { 389*cdf0e10cSrcweir if (maActiveObject != null) 390*cdf0e10cSrcweir maActiveObject.unhighlight(); 391*cdf0e10cSrcweir 392*cdf0e10cSrcweir maActiveObject = aNewActiveObject; 393*cdf0e10cSrcweir if (maActiveObject != null) 394*cdf0e10cSrcweir { 395*cdf0e10cSrcweir if (maTree != null) 396*cdf0e10cSrcweir { 397*cdf0e10cSrcweir maTree.scrollPathToVisible (maActiveObject.getPath()); 398*cdf0e10cSrcweir maTree.setSelectionPath (maActiveObject.getPath()); 399*cdf0e10cSrcweir maTree.repaint (); 400*cdf0e10cSrcweir } 401*cdf0e10cSrcweir maActiveObject.highlight (); 402*cdf0e10cSrcweir repaint (); 403*cdf0e10cSrcweir } 404*cdf0e10cSrcweir return true; 405*cdf0e10cSrcweir } 406*cdf0e10cSrcweir else 407*cdf0e10cSrcweir return false; 408*cdf0e10cSrcweir } 409*cdf0e10cSrcweir 410*cdf0e10cSrcweir /** Called when the selection of the tree changes. Highlight the 411*cdf0e10cSrcweir corresponding graphical representation of the first selected object. 412*cdf0e10cSrcweir */ 413*cdf0e10cSrcweir public void valueChanged (javax.swing.event.TreeSelectionEvent event) 414*cdf0e10cSrcweir { 415*cdf0e10cSrcweir TreePath aPath = event.getPath(); 416*cdf0e10cSrcweir Object aObject = aPath.getLastPathComponent(); 417*cdf0e10cSrcweir if (aObject instanceof AccTreeNode) 418*cdf0e10cSrcweir { 419*cdf0e10cSrcweir CanvasShape aCanvasShape = (CanvasShape)maObjects.get ((AccTreeNode)aObject); 420*cdf0e10cSrcweir if (highlightObject (aCanvasShape)) 421*cdf0e10cSrcweir repaint(); 422*cdf0e10cSrcweir } 423*cdf0e10cSrcweir } 424*cdf0e10cSrcweir 425*cdf0e10cSrcweir private int 426*cdf0e10cSrcweir mnXAnchor, 427*cdf0e10cSrcweir mnYAnchor, 428*cdf0e10cSrcweir maResizeFlag; 429*cdf0e10cSrcweir private double 430*cdf0e10cSrcweir mnHOffset, 431*cdf0e10cSrcweir mnVOffset, 432*cdf0e10cSrcweir mnScale; 433*cdf0e10cSrcweir private CanvasShape 434*cdf0e10cSrcweir maActiveObject; 435*cdf0e10cSrcweir private java.util.HashMap 436*cdf0e10cSrcweir maObjects; 437*cdf0e10cSrcweir private Vector 438*cdf0e10cSrcweir maObjectList, 439*cdf0e10cSrcweir maContexts, 440*cdf0e10cSrcweir maNodes; 441*cdf0e10cSrcweir private Rectangle 442*cdf0e10cSrcweir maBoundingBox; 443*cdf0e10cSrcweir private JTree 444*cdf0e10cSrcweir maTree; 445*cdf0e10cSrcweir // The size of the widget at the last call of setupTransformation() 446*cdf0e10cSrcweir private Dimension 447*cdf0e10cSrcweir maLastWidgetSize; 448*cdf0e10cSrcweir } 449