209 lines
8 KiB
C#
209 lines
8 KiB
C#
// TreeModelFilter.cs
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//
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// Author: Mike Kestner <mkestner@ximian.com>
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//
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// Copyright (c) 2007 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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namespace Gtk {
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using System;
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using System.Runtime.InteropServices;
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public partial class TreeModelFilter {
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[DllImport (Global.GtkNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern bool gtk_tree_model_iter_children (IntPtr raw, out Gtk.TreeIter iter, IntPtr parent);
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public bool IterChildren (out Gtk.TreeIter iter) {
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bool raw_ret = gtk_tree_model_iter_children (Handle, out iter, IntPtr.Zero);
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bool ret = raw_ret;
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return ret;
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}
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public int IterNChildren () {
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int raw_ret = gtk_tree_model_iter_n_children (Handle, IntPtr.Zero);
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int ret = raw_ret;
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return ret;
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}
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[DllImport (Global.GtkNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern bool gtk_tree_model_iter_nth_child (IntPtr raw, out Gtk.TreeIter iter, IntPtr parent, int n);
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public bool IterNthChild (out Gtk.TreeIter iter, int n) {
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bool raw_ret = gtk_tree_model_iter_nth_child (Handle, out iter, IntPtr.Zero, n);
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bool ret = raw_ret;
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return ret;
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}
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public void SetValue (Gtk.TreeIter iter, int column, bool value) {
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throw new NotImplementedException ();
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}
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public void SetValue (Gtk.TreeIter iter, int column, double value) {
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throw new NotImplementedException ();
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}
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public void SetValue (Gtk.TreeIter iter, int column, int value) {
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throw new NotImplementedException ();
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}
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public void SetValue (Gtk.TreeIter iter, int column, string value) {
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throw new NotImplementedException ();
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}
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public void SetValue (Gtk.TreeIter iter, int column, float value) {
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throw new NotImplementedException ();
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}
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public void SetValue (Gtk.TreeIter iter, int column, uint value) {
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throw new NotImplementedException ();
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}
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public void SetValue (Gtk.TreeIter iter, int column, object value) {
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throw new NotImplementedException ();
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}
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public object GetValue (Gtk.TreeIter iter, int column) {
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GLib.Value val = GLib.Value.Empty;
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GetValue (iter, column, ref val);
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object ret = val.Val;
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val.Dispose ();
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return ret;
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}
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[DllImport (Global.GtkNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern void gtk_tree_model_filter_set_modify_func(IntPtr raw, int n_columns, IntPtr[] types, GtkSharp.TreeModelFilterModifyFuncNative func, IntPtr data, GLib.DestroyNotify destroy);
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public void SetModifyFunc (int n_columns, GLib.GType[] types, TreeModelFilterModifyFunc func)
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{
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GtkSharp.TreeModelFilterModifyFuncWrapper func_wrapper = new GtkSharp.TreeModelFilterModifyFuncWrapper (func);
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IntPtr[] native_types = new IntPtr [types.Length];
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for (int i = 0; i < types.Length; i++)
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native_types [i] = types [i].Val;
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GCHandle gch = GCHandle.Alloc (func_wrapper);
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gtk_tree_model_filter_set_modify_func (Handle, n_columns, native_types, func_wrapper.NativeDelegate, (IntPtr) gch, GLib.DestroyHelper.NotifyHandler);
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}
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[DllImport (Global.GtkNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern bool gtk_tree_model_filter_convert_child_iter_to_iter (IntPtr raw, out Gtk.TreeIter filter_iter, ref Gtk.TreeIter child_iter);
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public TreeIter ConvertChildIterToIter (Gtk.TreeIter child_iter)
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{
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TreeIter filter_iter;
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if (gtk_tree_model_filter_convert_child_iter_to_iter(Handle, out filter_iter, ref child_iter))
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return filter_iter;
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else
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return TreeIter.Zero;
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}
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[UnmanagedFunctionPointer (CallingConvention.Cdecl)]
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delegate void RowsReorderedSignalDelegate (IntPtr arg0, IntPtr arg1, IntPtr arg2, IntPtr arg3, IntPtr gch);
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static void RowsReorderedSignalCallback (IntPtr arg0, IntPtr arg1, IntPtr arg2, IntPtr arg3, IntPtr gch)
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{
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Gtk.RowsReorderedArgs args = new Gtk.RowsReorderedArgs ();
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try {
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GLib.Signal sig = ((GCHandle) gch).Target as GLib.Signal;
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if (sig == null)
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throw new Exception("Unknown signal GC handle received " + gch);
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TreeModelFilter sender = GLib.Object.GetObject (arg0) as TreeModelFilter;
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args.Args = new object[3];
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args.Args[0] = arg1 == IntPtr.Zero ? null : (Gtk.TreePath) GLib.Opaque.GetOpaque (arg1, typeof (Gtk.TreePath), false);
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args.Args[1] = Gtk.TreeIter.New (arg2);
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int child_cnt = arg2 == IntPtr.Zero ? sender.IterNChildren () : sender.IterNChildren ((TreeIter)args.Args[1]);
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int[] new_order = new int [child_cnt];
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Marshal.Copy (arg3, new_order, 0, child_cnt);
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args.Args[2] = new_order;
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Gtk.RowsReorderedHandler handler = (Gtk.RowsReorderedHandler) sig.Handler;
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handler (sender, args);
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} catch (Exception e) {
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GLib.ExceptionManager.RaiseUnhandledException (e, false);
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}
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}
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[UnmanagedFunctionPointer (CallingConvention.Cdecl)]
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delegate void RowsReorderedVMDelegate (IntPtr tree_model, IntPtr path, IntPtr iter, IntPtr new_order);
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static RowsReorderedVMDelegate RowsReorderedVMCallback;
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static void rowsreordered_cb (IntPtr tree_model, IntPtr path_ptr, IntPtr iter_ptr, IntPtr new_order)
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{
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try {
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TreeModelFilter store = GLib.Object.GetObject (tree_model, false) as TreeModelFilter;
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TreePath path = GLib.Opaque.GetOpaque (path_ptr, typeof (TreePath), false) as TreePath;
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TreeIter iter = TreeIter.New (iter_ptr);
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int child_cnt = store.IterNChildren (iter);
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int[] child_order = new int [child_cnt];
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Marshal.Copy (new_order, child_order, 0, child_cnt);
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store.OnRowsReordered (path, iter, child_order);
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} catch (Exception e) {
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GLib.ExceptionManager.RaiseUnhandledException (e, true);
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// NOTREACHED: above call doesn't return
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throw e;
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}
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}
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private static void OverrideRowsReordered (GLib.GType gtype)
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{
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if (RowsReorderedVMCallback == null)
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RowsReorderedVMCallback = new RowsReorderedVMDelegate (rowsreordered_cb);
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OverrideVirtualMethod (gtype, "rows_reordered", RowsReorderedVMCallback);
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}
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[Obsolete ("Replaced by int[] new_order overload.")]
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[GLib.DefaultSignalHandler(Type=typeof(Gtk.TreeModelFilter), ConnectionMethod="OverrideRowsReordered")]
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protected virtual void OnRowsReordered (Gtk.TreePath path, Gtk.TreeIter iter, out int new_order)
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{
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new_order = -1;
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}
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[GLib.DefaultSignalHandler(Type=typeof(Gtk.TreeModelFilter), ConnectionMethod="OverrideRowsReordered")]
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protected virtual void OnRowsReordered (Gtk.TreePath path, Gtk.TreeIter iter, int[] new_order)
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{
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int dummy;
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OnRowsReordered (path, iter, out dummy);
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GLib.Value ret = GLib.Value.Empty;
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GLib.ValueArray inst_and_params = new GLib.ValueArray (4);
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GLib.Value[] vals = new GLib.Value [4];
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vals [0] = new GLib.Value (this);
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inst_and_params.Append (vals [0]);
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vals [1] = new GLib.Value (path);
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inst_and_params.Append (vals [1]);
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vals [2] = new GLib.Value (iter);
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inst_and_params.Append (vals [2]);
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int cnt = IterNChildren (iter);
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IntPtr new_order_ptr = Marshal.AllocHGlobal (Marshal.SizeOf (typeof (int)) * cnt);
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Marshal.Copy (new_order, 0, new_order_ptr, cnt);
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vals [3] = new GLib.Value (new_order_ptr);
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inst_and_params.Append (vals [3]);
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g_signal_chain_from_overridden (inst_and_params.ArrayPtr, ref ret);
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Marshal.FreeHGlobal (new_order_ptr);
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foreach (GLib.Value v in vals)
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v.Dispose ();
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}
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[GLib.Signal("rows_reordered")]
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public event Gtk.RowsReorderedHandler RowsReordered {
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add {
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AddSignalHandler ("rows_reordered", value, new RowsReorderedSignalDelegate(RowsReorderedSignalCallback));
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}
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remove {
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RemoveSignalHandler ("rows_reordered", value);
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}
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}
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}
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}
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