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// Gtk.TreeModelSort.cs - Gtk TreeModelSort class customizations
//
// Author: Kristian Rietveld <kris@gtk.org>
//
// Copyright (c) 2002 Kristian Rietveld
//
// 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.
namespace Gtk {
using System;
using System.Runtime.InteropServices;
public partial class TreeModelSort {
[DllImport (Global.GtkNativeDll, CallingConvention = CallingConvention.Cdecl)]
static extern bool gtk_tree_model_iter_children (IntPtr raw, out Gtk.TreeIter iter, IntPtr parent);
public bool IterChildren (out Gtk.TreeIter iter) {
bool raw_ret = gtk_tree_model_iter_children (Handle, out iter, IntPtr.Zero);
bool ret = raw_ret;
return ret;
}
public int IterNChildren () {
int raw_ret = gtk_tree_model_iter_n_children (Handle, IntPtr.Zero);
int ret = raw_ret;
return ret;
}
[DllImport (Global.GtkNativeDll, CallingConvention = CallingConvention.Cdecl)]
static extern bool gtk_tree_model_iter_nth_child (IntPtr raw, out Gtk.TreeIter iter, IntPtr parent, int n);
public bool IterNthChild (out Gtk.TreeIter iter, int n) {
bool raw_ret = gtk_tree_model_iter_nth_child (Handle, out iter, IntPtr.Zero, n);
bool ret = raw_ret;
return ret;
}
public TreeIter ConvertChildIterToIter (TreeIter iter)
{
TreeIter result;
if (ConvertChildIterToIter (out result, iter))
return result;
else
return TreeIter.Zero;
}
public void SetValue (Gtk.TreeIter iter, int column, bool value) {
throw new NotImplementedException ();
}
public void SetValue (Gtk.TreeIter iter, int column, double value) {
throw new NotImplementedException ();
}
public void SetValue (Gtk.TreeIter iter, int column, int value) {
throw new NotImplementedException ();
}
public void SetValue (Gtk.TreeIter iter, int column, string value) {
throw new NotImplementedException ();
}
public void SetValue (Gtk.TreeIter iter, int column, float value) {
throw new NotImplementedException ();
}
public void SetValue (Gtk.TreeIter iter, int column, uint value) {
throw new NotImplementedException ();
}
public void SetValue (Gtk.TreeIter iter, int column, object value) {
throw new NotImplementedException ();
}
public Gtk.TreeIter AppendValues (params object[] values) {
return AppendValues ((Array) values);
}
public object GetValue (Gtk.TreeIter iter, int column) {
GLib.Value val = GLib.Value.Empty;
GetValue (iter, column, ref val);
object ret = val.Val;
val.Dispose ();
return ret;
}
[UnmanagedFunctionPointer (CallingConvention.Cdecl)]
delegate void RowsReorderedSignalDelegate (IntPtr arg0, IntPtr arg1, IntPtr arg2, IntPtr arg3, IntPtr gch);
static void RowsReorderedSignalCallback (IntPtr arg0, IntPtr arg1, IntPtr arg2, IntPtr arg3, IntPtr gch)
{
Gtk.RowsReorderedArgs args = new Gtk.RowsReorderedArgs ();
try {
GLib.Signal sig = ((GCHandle) gch).Target as GLib.Signal;
if (sig == null)
throw new Exception("Unknown signal GC handle received " + gch);
TreeModelSort sender = GLib.Object.GetObject (arg0) as TreeModelSort;
args.Args = new object[3];
args.Args[0] = arg1 == IntPtr.Zero ? null : (Gtk.TreePath) GLib.Opaque.GetOpaque (arg1, typeof (Gtk.TreePath), false);
args.Args[1] = Gtk.TreeIter.New (arg2);
int child_cnt = arg2 == IntPtr.Zero ? sender.IterNChildren () : sender.IterNChildren ((TreeIter)args.Args[1]);
int[] new_order = new int [child_cnt];
Marshal.Copy (arg3, new_order, 0, child_cnt);
args.Args[2] = new_order;
Gtk.RowsReorderedHandler handler = (Gtk.RowsReorderedHandler) sig.Handler;
handler (sender, args);
} catch (Exception e) {
GLib.ExceptionManager.RaiseUnhandledException (e, false);
}
}
[UnmanagedFunctionPointer (CallingConvention.Cdecl)]
delegate void RowsReorderedVMDelegate (IntPtr tree_model, IntPtr path, IntPtr iter, IntPtr new_order);
static RowsReorderedVMDelegate RowsReorderedVMCallback;
static void rowsreordered_cb (IntPtr tree_model, IntPtr path_ptr, IntPtr iter_ptr, IntPtr new_order)
{
try {
TreeModelSort store = GLib.Object.GetObject (tree_model, false) as TreeModelSort;
TreePath path = GLib.Opaque.GetOpaque (path_ptr, typeof (TreePath), false) as TreePath;
TreeIter iter = TreeIter.New (iter_ptr);
int child_cnt = store.IterNChildren (iter);
int[] child_order = new int [child_cnt];
Marshal.Copy (new_order, child_order, 0, child_cnt);
store.OnRowsReordered (path, iter, child_order);
} catch (Exception e) {
GLib.ExceptionManager.RaiseUnhandledException (e, true);
// NOTREACHED: above call doesn't return
throw e;
}
}
private static void OverrideRowsReordered (GLib.GType gtype)
{
if (RowsReorderedVMCallback == null)
RowsReorderedVMCallback = new RowsReorderedVMDelegate (rowsreordered_cb);
OverrideVirtualMethod (gtype, "rows_reordered", RowsReorderedVMCallback);
}
[GLib.DefaultSignalHandler(Type=typeof(Gtk.TreeModelSort), ConnectionMethod="OverrideRowsReordered")]
protected virtual void OnRowsReordered (Gtk.TreePath path, Gtk.TreeIter iter, int[] new_order)
{
GLib.Value ret = GLib.Value.Empty;
GLib.ValueArray inst_and_params = new GLib.ValueArray (4);
GLib.Value[] vals = new GLib.Value [4];
vals [0] = new GLib.Value (this);
inst_and_params.Append (vals [0]);
vals [1] = new GLib.Value (path);
inst_and_params.Append (vals [1]);
vals [2] = new GLib.Value (iter);
inst_and_params.Append (vals [2]);
int cnt = IterNChildren (iter);
IntPtr new_order_ptr = Marshal.AllocHGlobal (Marshal.SizeOf (typeof (int)) * cnt);
Marshal.Copy (new_order, 0, new_order_ptr, cnt);
vals [3] = new GLib.Value (new_order_ptr);
inst_and_params.Append (vals [3]);
g_signal_chain_from_overridden (inst_and_params.ArrayPtr, ref ret);
Marshal.FreeHGlobal (new_order_ptr);
foreach (GLib.Value v in vals)
v.Dispose ();
}
[GLib.Signal("rows_reordered")]
public event Gtk.RowsReorderedHandler RowsReordered {
add {
AddSignalHandler ("rows_reordered", value, new RowsReorderedSignalDelegate(RowsReorderedSignalCallback));
}
remove {
RemoveSignalHandler ("rows_reordered", value);
}
}
}
}
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