GtkSharp/gtk/TreeViewColumn.custom
Mike Kestner 59faab866e 2004-12-17 Mike Kestner <mkestner@novell.com>
* gtk/Makefile.am : add new file.
	* gtk/glue/makefile.win32 : add missing file.
	* gtk/NodeCellDataFunc.cs : new callback delegate type and marshaler
	for NodeStore tree views using GtkTreeCellDataFuncs.
	* gtk/NodeStore.cs : add internal GetNode overload by TreeIter.
	* gtk/NodeView.cs : add AppendColumn overload that uses data funcs.
	* gtk/TreeViewColumn.custom : manual implementation for SetCellDataFunc
	to support both TreeIter and ITreeNode models.  We need to hold a ref
	to a delegate for each cell renderer on a column. [Fixes #63062]
	* sample/NodeViewDemo.cs : use a NodeCellDataFunc for one of the 
	cell renderers in the tree.

svn path=/trunk/gtk-sharp/; revision=37904
2004-12-17 20:32:33 +00:00

104 lines
3.6 KiB
Text

// Gtk.TreeViewColumn.Custom - Gtk TreeViewColumn class customizations
//
// Author: Rachel Hestilow <hestilow@ximian.com>
//
// Copyright (c) 2003 Rachel Hestilow
//
// This code is inserted after the automatically generated code.
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of version 2 of the Lesser GNU General
// Public License as published by the Free Software Foundation.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this program; if not, write to the
// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
// Boston, MA 02111-1307, USA.
private void _NewWithAttributes (string title, Gtk.CellRenderer cell, Array attrs) {
Title = title;
PackStart (cell, true);
for (int i = 0; (i + 1) < attrs.Length; i += 2) {
AddAttribute (cell, (string) ((object[])attrs)[i], (int)((object[])attrs)[i + 1]);
}
}
public TreeViewColumn (string title, Gtk.CellRenderer cell, Array attrs) : this ()
{
_NewWithAttributes (title, cell, attrs);
}
public TreeViewColumn (string title, Gtk.CellRenderer cell, params object[] attrs) : this ()
{
_NewWithAttributes (title, cell, attrs);
}
[DllImport("libgtk-win32-2.0-0.dll")]
static extern IntPtr gtk_tree_view_column_get_cell_renderers (IntPtr raw);
public CellRenderer[] CellRenderers {
get {
IntPtr raw_ret = gtk_tree_view_column_get_cell_renderers (Handle);
if (raw_ret == IntPtr.Zero)
return new CellRenderer [0];
GLib.List list = new GLib.List (raw_ret);
CellRenderer[] result = new CellRenderer [list.Count];
for (int i = 0; i < list.Count; i++)
result [i] = list [i] as CellRenderer;
return result;
}
}
Hashtable cell_data_funcs;
Hashtable CellDataFuncs {
get {
if (cell_data_funcs == null)
cell_data_funcs = new Hashtable ();
return cell_data_funcs;
}
}
[DllImport("libgtk-win32-2.0-0.dll")]
static extern void gtk_tree_view_column_set_cell_data_func(IntPtr raw, IntPtr cell_renderer, IntPtr func, IntPtr func_data, IntPtr destroy);
private void ReleaseDataFunc (CellRenderer cell)
{
CellDataFuncs [cell.Handle] = null;
gtk_tree_view_column_set_cell_data_func(Handle, cell.Handle, IntPtr.Zero, IntPtr.Zero, IntPtr.Zero);
}
[DllImport("libgtk-win32-2.0-0.dll")]
static extern void gtk_tree_view_column_set_cell_data_func(IntPtr raw, IntPtr cell_renderer, GtkSharp.TreeCellDataFuncNative func, IntPtr func_data, IntPtr destroy);
public void SetCellDataFunc (CellRenderer cell_renderer, TreeCellDataFunc func)
{
if (func == null) {
ReleaseDataFunc (cell_renderer);
return;
}
;
GtkSharp.TreeCellDataFuncWrapper wrapper = new GtkSharp.TreeCellDataFuncWrapper (func, this);
CellDataFuncs [cell_renderer.Handle] = wrapper;
gtk_tree_view_column_set_cell_data_func(Handle, cell_renderer.Handle, wrapper.NativeDelegate, IntPtr.Zero, IntPtr.Zero);
}
public void SetCellDataFunc (CellRenderer cell_renderer, NodeCellDataFunc func)
{
if (func == null) {
ReleaseDataFunc (cell_renderer);
return;
}
;
NodeCellDataFuncWrapper wrapper = new NodeCellDataFuncWrapper (func, this);
CellDataFuncs [cell_renderer.Handle] = wrapper;
gtk_tree_view_column_set_cell_data_func(Handle, cell_renderer.Handle, wrapper.NativeDelegate, IntPtr.Zero, IntPtr.Zero);
}