/
GtkExtensions.cs
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/
GtkExtensions.cs
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//
// GtkExtensions.cs
//
// Author:
// Jonathan Pobst <monkey@jpobst.com>
//
// Copyright (c) 2010 Jonathan Pobst
//
// 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 Pinta.Core
{
public static class GtkExtensions
{
public static void AddWidgetItem (this Toolbar tb, Widget w)
{
w.Show ();
ToolItem ti = new ToolItem ();
ti.Add (w);
ti.Show ();
tb.Insert (ti, tb.NItems);
}
public static void AppendItem (this Toolbar tb, ToolItem item)
{
item.Show ();
tb.Insert (item, tb.NItems);
}
public static void AppendSeparator (this Menu menu)
{
SeparatorMenuItem smi = new SeparatorMenuItem ();
smi.Show ();
menu.Append (smi);
}
public static MenuItem AppendItem (this Menu menu, MenuItem item)
{
menu.Append (item);
return item;
}
public static Gtk.Action AppendAction (this Menu menu, string actionName, string actionLabel, string actionTooltip, string actionIcon)
{
Gtk.Action action = new Gtk.Action (actionName, actionLabel, actionTooltip, actionIcon);
menu.AppendItem ((MenuItem)action.CreateMenuItem ());
return action;
}
public static Gtk.ToggleAction AppendToggleAction (this Menu menu, string actionName, string actionLabel, string actionTooltip, string actionIcon)
{
Gtk.ToggleAction action = new Gtk.ToggleAction (actionName, actionLabel, actionTooltip, actionIcon);
menu.AppendItem ((MenuItem)action.CreateMenuItem ());
return action;
}
public static MenuItem AppendMenuItemSorted (this Menu menu, MenuItem item)
{
var text = item.GetText ();
for (int i = 0; i < menu.Children.Length; i++)
if (string.Compare (((menu.Children[i]) as MenuItem).GetText (), text) > 0) {
menu.Insert (item, i);
return item;
}
menu.AppendItem (item);
return item;
}
public static string GetText (this MenuItem item)
{
foreach (var child in item.AllChildren)
if (child is Label)
return (child as Label).Text;
return string.Empty;
}
public static Gtk.ToolItem CreateToolBarItem (this Gtk.Action action)
{
Gtk.ToolItem item = (Gtk.ToolItem)action.CreateToolItem ();
item.TooltipText = action.Label;
return item;
}
public static Gtk.ImageMenuItem CreateAcceleratedMenuItem (this Gtk.Action action, Gdk.Key key, Gdk.ModifierType mods)
{
ImageMenuItem item = (ImageMenuItem)action.CreateMenuItem ();
(item.Child as AccelLabel).AccelWidget = item;
item.AddAccelerator ("activate", PintaCore.Actions.AccelGroup, new AccelKey (key, mods, AccelFlags.Visible));
return item;
}
public static Gtk.CheckMenuItem CreateAcceleratedMenuItem (this Gtk.ToggleAction action, Gdk.Key key, Gdk.ModifierType mods)
{
CheckMenuItem item = (CheckMenuItem)action.CreateMenuItem ();
(item.Child as AccelLabel).AccelWidget = item;
item.AddAccelerator ("activate", PintaCore.Actions.AccelGroup, new AccelKey (key, mods, AccelFlags.Visible));
return item;
}
public static Gtk.MenuItem CreateSubMenuItem (this Gtk.Action action)
{
MenuItem item = (MenuItem)action.CreateMenuItem ();
Menu sub_menu = new Menu ();
item.Submenu = sub_menu;
return item;
}
/// <summary>
/// Initialize an image preview widget for the dialog
/// </summary>
public static void AddImagePreview (this FileChooserDialog dialog)
{
dialog.PreviewWidget = new Image ();
dialog.UpdatePreview += new EventHandler (OnUpdateImagePreview);
}
/// <summary>
/// Update the image preview widget of a FileChooserDialog
/// </summary>
/// <param name="sender"></param>
private static void OnUpdateImagePreview (object sender, EventArgs e)
{
FileChooserDialog dialog = (FileChooserDialog)sender;
Image preview = (Image)dialog.PreviewWidget;
try
{
preview.Pixbuf = new Gdk.Pixbuf (dialog.PreviewFilename, 256, 512, true);
dialog.PreviewWidgetActive = true;
}
catch (GLib.GException)
{
// if the image preview failed, don't show the preview widget
dialog.PreviewWidgetActive = false;
}
}
}
}