org.simantics.g3d.vtk/src/org/simantics/g3d/vtk/swt/ContextMenuListener.java

   1 package org.simantics.g3d.vtk.swt;
   2
   3 import org.eclipse.swt.events.MouseEvent;
   4 import org.eclipse.swt.events.MouseListener;
   5 import org.eclipse.swt.graphics.Point;
   6 import org.eclipse.swt.widgets.Menu;
   7
   8 public class ContextMenuListener implements MouseListener{
   9
  10         InteractiveVtkComposite panel;
  11         Menu contextMenu;
  12
  13         public ContextMenuListener(InteractiveVtkComposite panel, Menu contextMenu) {
  14                 this.panel = panel;
  15                 this.contextMenu = contextMenu;
  16                 this.panel.getComponent().addMouseListener(this);
  17         }
  18
  19         int x = 0;
  20         int y = 0;
  21         int d = 4;
  22         int time = 0;
  23
  24         @Override
  25         public void mouseUp(MouseEvent e) {
  26                 if (e.button == 3) {
  27                         if (Math.abs(x-e.x) < d && Math.abs(y-e.y) < d && (e.time - time) < 500) {
  28                                 Point point = panel.getComponent().getParent().toDisplay(new Point(e.x, e.y));
  29                                 contextMenu.setLocation(point.x, point.y);
  30                                 contextMenu.setVisible(true);
  31                         }
  32                 }
  33         }
  34
  35         @Override
  36         public void mouseDown(MouseEvent e) {
  37                 if (e.button == 3) {
  38                         x = e.x;
  39                         y = e.y;
  40                         time = e.time;
  41                 }
  42         }
  43
  44         @Override
  45         public void mouseDoubleClick(MouseEvent e) {
  46
  47         }
  48
  49 }