/**
* Hook to compute the menu location if the focus widget is a tree widget.
*
* @param tree the tree widget that has the focus
* @return a widget relative position of the menu to pop up or <code>null</code> if now position
* inside the widget can be computed
*/
protected Point computeMenuLocation(Tree tree) {
TreeItem[] items = tree.getSelection();
Rectangle clientArea = tree.getClientArea();
switch (items.length) {
case 0:
return null;
case 1:
Rectangle bounds = items[0].getBounds();
Rectangle intersect = clientArea.intersection(bounds);
if (intersect != null && intersect.height == bounds.height) {
return new Point(
Math.max(0, bounds.x + getAvarageCharWith(tree) * CHAR_INDENT),
bounds.y + bounds.height);
} else {
return null;
}
default:
Rectangle[] rectangles = new Rectangle[items.length];
for (int i = 0; i < rectangles.length; i++) {
rectangles[i] = items[i].getBounds();
}
Point cursorLocation = tree.getDisplay().getCursorLocation();
Point result =
findBestLocation(
getIncludedPositions(rectangles, clientArea), tree.toControl(cursorLocation));
if (result != null) result.x = result.x + getAvarageCharWith(tree) * CHAR_INDENT;
return result;
}
}
public static SWTBotTreeColumn getColumn(final Tree tree, final int index) {
TreeColumn treeColumn =
UIThreadRunnable.syncExec(
tree.getDisplay(),
new WidgetResult<TreeColumn>() {
public TreeColumn run() {
return tree.getColumn(index);
}
});
return new SWTBotTreeColumn(treeColumn);
}
public void gotValue(
LiveExpression<Filter<BootDashElement>> exp, Filter<BootDashElement> value) {
tv.refresh();
final Tree t = tv.getTree();
t.getDisplay()
.asyncExec(
new Runnable() {
public void run() {
Composite parent = t.getParent();
parent.layout();
}
});
}