101 lines
No EOL
2.3 KiB
C#
101 lines
No EOL
2.3 KiB
C#
using System;
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using Gdk;
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using GLib;
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using Gtk;
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using System.Xml;
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namespace DMX2
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{
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public static class XmlHelpers {
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public static string TryGetAttribute (this XmlElement element, string name, string defaultval)
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{
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if(!element.HasAttribute(name)) return defaultval;
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return element.GetAttribute(name);
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}
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}
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public class ContextMenuEventArgs : EventArgs
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{
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private Widget widget;
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public Widget Widget { get { return widget; } }
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private bool rightClick;
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public bool RightClick { get { return rightClick; } }
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public ContextMenuEventArgs (Widget widget, bool rightClick)
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{
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this.widget = widget;
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this.rightClick = rightClick;
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}
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}
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public class ContextMenuHelper
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{
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public event EventHandler<ContextMenuEventArgs> ContextMenu;
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public ContextMenuHelper ()
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{
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}
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public ContextMenuHelper (Widget widget)
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{
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AttachToWidget (widget);
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}
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public ContextMenuHelper (Widget widget, EventHandler<ContextMenuEventArgs> handler)
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{
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AttachToWidget (widget);
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ContextMenu += handler;
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}
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public void AttachToWidget (Widget widget)
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{
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widget.PopupMenu += Widget_PopupMenu;
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widget.ButtonPressEvent += Widget_ButtonPressEvent;
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}
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public void DetachFromWidget (Widget widget)
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{
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widget.PopupMenu -= Widget_PopupMenu;
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widget.ButtonPressEvent -= Widget_ButtonPressEvent;
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}
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[GLib.ConnectBefore]
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private void Widget_PopupMenu (object o, PopupMenuArgs args)
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{
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RaiseContextMenuEvent (args, (Widget)o, false);
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}
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[GLib.ConnectBefore]
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private void Widget_ButtonPressEvent (object o, ButtonPressEventArgs args)
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{
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if (args.Event.Button == 3 && args.Event.Type == EventType.ButtonPress) {
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RaiseContextMenuEvent (args, (Widget)o, true);
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}
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}
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//private bool propagating = false; //Prevent reentry
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private void RaiseContextMenuEvent (SignalArgs signalArgs, Widget widget, bool rightClick)
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{
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//if (!propagating) {
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//Propagate the event
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// Event evnt = Gtk.Global.CurrentEvent;
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// propagating = true;
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// Gtk.Global.PropagateEvent (widget, evnt);
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// propagating = false;
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signalArgs.RetVal = true; //The widget already processed the event in the propagation
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//Raise the context menu event
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ContextMenuEventArgs args = new ContextMenuEventArgs (widget, rightClick);
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if (ContextMenu != null) {
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ContextMenu.Invoke (this, args);
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}
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//}
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}
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}
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} |