private FigureNavigator navigator() {
Control canvas = getCanvas();
if (canvas instanceof FigureCanvas) {
return FigureNavigator.getNavigatorForRoot(((FigureCanvas) canvas).getContents());
} else {
throw new RuntimeException("Bad Canvas");
}
}
public void keyPressed(KeyEvent event) {
if (context.getFocused() != this) return;
applyShortcut(event.keyCode, event.stateMask);
if (event.character == '\r' && event.stateMask == 0) {
replaceContent();
} else if (event.stateMask == (SWT.ALT | SWT.SHIFT)) {
FigureNavigator nav = navigator();
try {
VisualTerm other = null;
switch (event.keyCode) {
case SWT.ARROW_UP:
other =
(VisualTerm)
nav.getLastSmallestDecscendant(
nav.getFirstDescendantOfPrevSibling(
this, VerticalFlow.class, VisualTerm.class),
VisualTerm.class);
break;
case SWT.ARROW_DOWN:
other =
(VisualTerm)
nav.getFirstSmallestDecscendant(
nav.getFirstDescendantOfNextSibling(
this, VerticalFlow.class, VisualTerm.class),
VisualTerm.class);
break;
case SWT.ARROW_LEFT:
other =
(VisualTerm)
nav.getLastSmallestDecscendant(
nav.getFirstDescendantOfPrevSibling(
this, HorizontalFlow.class, VisualTerm.class),
VisualTerm.class);
break;
case SWT.ARROW_RIGHT:
other =
(VisualTerm)
nav.getFirstSmallestDecscendant(
nav.getFirstDescendantOfNextSibling(
this, HorizontalFlow.class, VisualTerm.class),
VisualTerm.class);
break;
case SWT.PAGE_UP:
other = (VisualTerm) nav.getAncestor(getParent(), VisualTerm.class);
break;
case SWT.PAGE_DOWN:
case SWT.HOME:
other = (VisualTerm) nav.getFirstDescendant(this, VisualTerm.class, false);
break;
case SWT.END:
other = (VisualTerm) nav.getLastDescendant(this, VisualTerm.class);
break;
}
if (other != null) other.focusGained(null);
} catch (FigureNotFoundException e) {
// No navigation...
}
}
}