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23ec73d6f9
* gtk/DestroyHelper.cs : implement an internal DestroyNotify handler to release GCHandles. * gtk/*.custom : rework existing persistent delegate implementations to use destroy notify or PersistentData. svn path=/trunk/gtk-sharp/; revision=42571
50 lines
1.9 KiB
Plaintext
50 lines
1.9 KiB
Plaintext
// Gtk.ComboBox.custom - Gtk ComboBox customizations
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//
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// Authors: Todd Berman <tberman@off.net>
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// Mike Kestner <mkestner@novell.com>
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//
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// Copyright (c) 2004 Todd Berman
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// Copyright (c) 2005 Novell, Inc.
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of version 2 of the Lesser GNU General
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// Public License as published by the Free Software Foundation.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this program; if not, write to the
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// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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// Boston, MA 02111-1307, USA.
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public void SetAttributes (CellRenderer cell, params object[] attrs)
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{
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if (attrs.Length % 2 != 0)
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throw new ArgumentException ("attrs should contain pairs of attribute/col");
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ClearAttributes (cell);
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for (int i = 0; i < attrs.Length - 1; i += 2) {
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AddAttribute (cell, (string) attrs [i], (int) attrs [i + 1]);
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}
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}
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[DllImport("libgtk-win32-2.0-0.dll")]
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static extern void gtk_cell_layout_set_cell_data_func(IntPtr raw, IntPtr cell_renderer, GtkSharp.CellLayoutDataFuncNative func, IntPtr func_data, NativeDestroyNotify destroy);
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public void SetCellDataFunc (CellRenderer renderer, CellLayoutDataFunc func)
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{
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if (func == null) {
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gtk_cell_layout_set_cell_data_func (Handle, renderer.Handle, null, IntPtr.Zero, null);
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return;
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}
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GtkSharp.CellLayoutDataFuncWrapper func_wrapper = new GtkSharp.CellLayoutDataFuncWrapper (func);
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GCHandle gch = GCHandle.Alloc (func_wrapper);
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gtk_cell_layout_set_cell_data_func (Handle, renderer.Handle, func_wrapper.NativeDelegate, (IntPtr) gch, DestroyHelper.NotifyHandler);
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}
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