137 lines
3.6 KiB
C#
137 lines
3.6 KiB
C#
// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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// Copyright (c) 2004-2005 Novell, Inc.
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//
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// Authors:
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// Jordi Mas i Hernandez, jordi@ximian.com
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//
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using System;
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using System.ComponentModel;
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using System.ComponentModel.Design;
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using System.Drawing;
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namespace System.Windows.Forms
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{
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[DefaultEvent("Popup")]
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public class ContextMenu : Menu
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{
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private RightToLeft right_to_left;
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private Control src_control;
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#region Events
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static object CollapseEvent = new object ();
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static object PopupEvent = new object ();
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public event EventHandler Collapse {
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add { Events.AddHandler (CollapseEvent, value); }
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remove { Events.RemoveHandler (CollapseEvent, value); }
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}
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public event EventHandler Popup {
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add { Events.AddHandler (PopupEvent, value); }
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remove { Events.RemoveHandler (PopupEvent, value); }
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}
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#endregion Events
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public ContextMenu () : base (null)
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{
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tracker = new MenuTracker (this);
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right_to_left = RightToLeft.Inherit;
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}
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public ContextMenu (MenuItem [] menuItems) : base (menuItems)
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{
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tracker = new MenuTracker (this);
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right_to_left = RightToLeft.Inherit;
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}
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#region Public Properties
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[Localizable(true)]
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[DefaultValue (RightToLeft.No)]
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public virtual RightToLeft RightToLeft {
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get { return right_to_left; }
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set { right_to_left = value; }
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}
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[Browsable(false)]
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[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
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public Control SourceControl {
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get { return src_control; }
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}
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#endregion Public Properties
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#region Public Methods
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protected internal virtual bool ProcessCmdKey (ref Message msg, Keys keyData, Control control)
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{
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src_control = control;
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return ProcessCmdKey (ref msg, keyData);
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}
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protected internal virtual void OnCollapse (EventArgs e)
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{
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EventHandler eh = (EventHandler) (Events [CollapseEvent]);
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if (eh != null)
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eh (this, e);
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}
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protected internal virtual void OnPopup (EventArgs e)
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{
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EventHandler eh = (EventHandler) (Events [PopupEvent]);
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if (eh != null)
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eh (this, e);
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}
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public void Show (Control control, Point pos)
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{
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if (control == null)
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throw new ArgumentException ();
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src_control = control;
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OnPopup (EventArgs.Empty);
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pos = control.PointToScreen (pos);
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MenuTracker.TrackPopupMenu (this, pos);
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OnCollapse (EventArgs.Empty);
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}
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public void Show (Control control, Point pos, LeftRightAlignment alignment)
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{
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Point point;
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if (alignment == LeftRightAlignment.Left)
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point = new Point ((pos.X - control.Width), pos.Y);
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else
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point = pos;
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Show (control, point);
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}
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#endregion Public Methods
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internal void Hide ()
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{
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tracker.Deactivate ();
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}
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}
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}
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