C# NSEvent.locationInWindow方法代码示例

		public override NSMenu menuForEvent(NSEvent @event)
		{
			if (menu == null)
				return base.menuForEvent(@event);
				
			//  NSLog(@"menuForEvent:");
			//  Find which row is under the cursor
			this.window().makeFirstResponder(this);
			NSPoint menuPoint = this.convertPoint(@event.locationInWindow()) fromView(null);
			int row = this.rowAtPoint(menuPoint);
			if (row > -1)
			{
				bool currentRowIsSelected = this.selectedRowIndexes().containsIndex(row);
				if (!currentRowIsSelected)
					this.selectRowIndexes(NSIndexSet.indexSetWithIndex(row)) byExtendingSelection(false);
			}
			else
			{
				this.deselectAll(null);
			}
			if (this.numberOfSelectedRows() <= 0)
			{
				//  No rows are selected, so the table should be displayed with all items disabled
				NSMenu tableViewMenu = this.menu().copy();
				for (int i = 0; i < tableViewMenu.numberOfItems; i++)
					tableViewMenu.itemAtIndex(i).setEnabled(false);
				return tableViewMenu;
			}
			else
				return this.menu();
		}

        public new NSMenu menuForEvent(NSEvent evt)
        {
            // If the item clicked on is not selected then select it.
            NSPoint baseLoc = evt.locationInWindow();
            NSPoint viewLoc = convertPointFromBase(baseLoc);
            int row = rowAtPoint(viewLoc);
            if (row >= 0)
            {
                if (!isRowSelected(row))
                {
                    var indexes = NSIndexSet.indexSetWithIndex((uint) row);
                    selectRowIndexes_byExtendingSelection(indexes, false);
                }
            }

            NSMenu menu = SuperCall(NSOutlineView.Class, "menuForEvent:", evt).To<NSMenu>();

            return menu;
        }

 private int DoMouseEventToIndex(NSTextView view, NSEvent evt)
 {
     NSPoint baseLoc = evt.locationInWindow();
     NSPoint viewLoc = view.convertPointFromBase(baseLoc);
     return (int) view.characterIndexForInsertionAtPoint(viewLoc);
 }

        // Note that the preferred way to do this (as of 10.5) is to attach a menu to the
        // table and bind the menu delegate to a controller. Then the controller can
        // define menuNeedsUpdate and use that to adjust the selection or change the
        // menu items based on the selection.
        public new NSMenu menuForEvent(NSEvent evt)
        {
            NSMenu menu = NSMenu.Alloc().initWithTitle(NSString.Empty);
            menu.autorelease();

            // Make the window the key window (handleSccs expects that it
            // is either the main or the key window).
            window().makeKeyAndOrderFront(this);

            // If the item clicked on is not selected then select it.
            NSPoint baseLoc = evt.locationInWindow();
            NSPoint viewLoc = convertPointFromBase(baseLoc);
            int row = rowAtPoint(viewLoc);
            if (row >= 0)
            {
                if (!isRowSelected(row))
                {
                    var indexes = NSIndexSet.indexSetWithIndex((uint) row);
                    selectRowIndexes_byExtendingSelection(indexes, false);
                }
            }

            // Find the items which are selected.
            var paths = new List<string>();
            foreach (uint index in selectedRowIndexes())
            {
                TableItem item = (TableItem) (itemAtRow((int) index));
                paths.Add(item.Path);
            }

            // Build the menu.
            foreach (string path in paths)
            {
                if (System.IO.File.Exists(path))
                {
                    Unused.Value = menu.addItemWithTitle_action_keyEquivalent(
                        NSString.Create("Open as Binary"), "openBinaries:", NSString.Empty);
                    break;
                }
            }

            Dictionary<string, string[]> commands = Sccs.GetCommands(paths);
            foreach (var entry in commands)
            {
                if (entry.Value.Length > 0)
                {
                    if (menu.numberOfItems() > 0)
                        menu.addItem(NSMenuItem.separatorItem());

                    var cmds = new List<string>(entry.Value);
                    cmds.Sort();
                    foreach (string command in cmds)
                    {
                        Unused.Value = menu.addItemWithTitle_action_keyEquivalent(
                            NSString.Create(command), "handleSccs:", NSString.Empty);
                    }
                }
            }

            return menu;
        }

	public new void mouseDown(NSEvent evt)
	{
		NSPoint originalPoint = convertPoint_fromView(evt.locationInWindow(), null);
		
		if (m_selection.size != NSSize.Zero)
		{
			setNeedsDisplayInRect(m_selection);
			m_selection = NSRect.Empty;
		}
		
		do
		{
			evt = window().nextEventMatchingMask(Enums.NSLeftMouseDraggedMask | Enums.NSLeftMouseUpMask);
			autoscroll(evt);
			
			NSPoint currentPoint = convertPoint_fromView(evt.locationInWindow(), null);
			NSRect oldSelection = m_selection;
			m_selection = DoCreateSelectionRect(originalPoint, currentPoint);
			setNeedsDisplayInRect(m_selection.Union(oldSelection));
		}
		while (evt.type() == Enums.NSLeftMouseDragged);
		
		DoInvariant();
	}