Java ToolBar.toDisplay方法代碼示例

import org.eclipse.swt.widgets.ToolBar; //導入方法依賴的package包/類
protected void open(final Decorations parent, final SelectionEvent trigger) {
	// final boolean asMenu = trigger.detail == SWT.ARROW;
	final boolean init = mainMenu == null;
	// if (!asMenu) {
	// openView();
	// } else {
	final ToolItem target = (ToolItem) trigger.widget;
	final ToolBar toolBar = target.getParent();

	if (init) {
		mainMenu = new Menu(parent, SWT.POP_UP);
		// AD: again. In the first call, the mainMenu was perhaps not
		// yet initialized
		fillMenu();
		// mainMenu.addMenuListener(tooltipListener);
	}

	final Point point = toolBar.toDisplay(new Point(trigger.x, trigger.y));
	mainMenu.setLocation(point.x, point.y);
	mainMenu.setVisible(true);
	// }
}
 

import org.eclipse.swt.widgets.ToolBar; //導入方法依賴的package包/類
/**
 * Handle selection events.
 */	
public void widgetSelected(SelectionEvent event) {
	/**
	 * A selection event will be fired when a drop down tool
	 * item is selected in the main area and in the drop
	 * down arrow.  Examine the event detail to determine
	 * where the widget was selected.
	 */		
	if (event.detail == SWT.ARROW) {
		/*
		 * The drop down arrow was selected.
		 */
		if (visible) {
			// Hide the menu to give the Arrow the appearance of being a toggle button.
			setMenuVisible(false);
		} else {	
			// Position the menu below and vertically aligned with the the drop down tool button.
			final ToolItem toolItem = (ToolItem) event.widget;
			final ToolBar  toolBar = toolItem.getParent();
			
			Rectangle toolItemBounds = toolItem.getBounds();
			Point point = toolBar.toDisplay(new Point(toolItemBounds.x, toolItemBounds.y));
			menu.setLocation(point.x, point.y + toolItemBounds.height);
			setMenuVisible(true);
		}
	} else {
		/*
		 * Main area of drop down tool item selected.
		 * An application would invoke the code to perform the action for the tool item.
		 */
	}
}
 

import org.eclipse.swt.widgets.ToolBar; //導入方法依賴的package包/類
private void openToolTipMenu10Reopen(final ToolItem toolItem) {

		_menuParentItem = toolItem;

		final ToolBar menuParentControl = _menuParentItem.getParent();
		final Rectangle toolItemBounds = _menuParentItem.getBounds();

		Point topLeft = new Point(toolItemBounds.x, toolItemBounds.y + toolItemBounds.height);
		topLeft = menuParentControl.toDisplay(topLeft);

		final Menu menu = getMenu(menuParentControl);
		menu.setLocation(topLeft.x, topLeft.y);
		menu.setVisible(true);
	}