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//
// MenuButton.cs
//
// Author:
// Michael Hutchinson <mhutchinson@novell.com>
//
// Copyright (C) 2008 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;
using Gtk;
namespace MonoDevelop.Components
{
[System.ComponentModel.Category("MonoDevelop.Components")]
[System.ComponentModel.ToolboxItem(true)]
public class MenuButton : Button
{
MenuCreator creator;
Label label;
Image image;
Arrow arrow;
bool isOpen;
public MenuButton ()
: base ()
{
HBox box = new HBox();
box.Spacing = 6;
Add (box);
image = new Image ();
box.PackStart (image, false, false, 0);
label = new Label ();
box.PackStart (label, false, false, 0);
ArrowType = Gtk.ArrowType.Down;
base.Label = null;
}
protected MenuButton (IntPtr raw)
: base (raw)
{
}
public MenuCreator MenuCreator {
get { return creator; }
set { creator = value; }
}
protected override void OnClicked ()
{
base.OnClicked ();
if (creator != null) {
Menu menu = creator (this);
if (menu != null) {
isOpen = true;
//make sure the button looks depressed
ReliefStyle oldRelief = this.Relief;
this.Relief = ReliefStyle.Normal;
//clean up after the menu's done
menu.Hidden += delegate {
this.Relief = oldRelief ;
isOpen = false;
this.State = StateType.Normal;
//FIXME: for some reason the menu's children don't get activated if we destroy
//directly here, so use a timeout to delay it
GLib.Timeout.Add (100, delegate {
menu.Destroy ();
return false;
});
};
menu.Popup (null, null, PositionFunc, 0, Gtk.Global.CurrentEventTime);
}
}
}
protected override void OnStateChanged(StateType previous_state)
{
base.OnStateChanged (previous_state);
//while the menu's open, make sure the button looks depressed
if (isOpen && this.State != StateType.Active)
this.State = StateType.Active;
}
void PositionFunc (Menu mn, out int x, out int y, out bool push_in)
{
this.GdkWindow.GetOrigin (out x, out y);
Gdk.Rectangle rect = this.Allocation;
x += rect.X;
y += rect.Y + rect.Height;
//if the menu would be off the bottom of the screen, "drop" it upwards
if (y + mn.Requisition.Height > this.Screen.Height) {
y -= mn.Requisition.Height;
y -= rect.Height;
}
//let GTK reposition the button if it still doesn't fit on the screen
push_in = true;
}
public ArrowType? ArrowType {
get { return arrow == null? (Gtk.ArrowType?) null : arrow.ArrowType; }
set {
if (value == null) {
if (arrow != null) {
((HBox)arrow.Parent).Remove (arrow);
arrow.Destroy ();
arrow = null;
}
} else {
if (arrow == null ) {
arrow = new Arrow (Gtk.ArrowType.Down, ShadowType.Out);
arrow.Show ();
((HBox)label.Parent).PackEnd (arrow, false, false, 0);
}
arrow.ArrowType = value?? Gtk.ArrowType.Down;
}
}
}
protected override void OnDestroyed ()
{
creator = null;
base.OnDestroyed ();
}
public new string Label {
get { return label.Text; }
set { label.Text = value; }
}
public new bool UseUnderline {
get { return label.UseUnderline; }
set { label.UseUnderline = value; }
}
public string StockImage {
set { image.Pixbuf = RenderIcon (value, IconSize.Button, null); }
}
public bool UseMarkup
{
get { return label.UseMarkup; }
set { label.UseMarkup = value; }
}
public string Markup {
set { label.Markup = value; }
}
}
public delegate Menu MenuCreator (MenuButton button);
}
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