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2c82d95b58
{List,Tree}Store.AppendValues overloads which take System.Array as their
'values' parameter incorrectly pass the array down to SetValues. The latter
expects a 'params object[]' array of parameters but passing an instance of
System.Array to such method will NOT pass the contents of System.Array instance
into the 'params' method as separate members of the parms array. It will instead
box System.Array and the params method will receive one parameter of type
System.Array instead of X parameters of various types. This affects the
following example code:
var store = new TreeStore (typeof (string), typeof (int));
store.AppendValues ("One", 1);
If the column configured to retrieve the 'string' value reads data from this
store it will instead get an instance of System.Array and the node displayed by
the TreeView will have no text, won't be clickable etc.
The fix implemented here is to "explode" the System.Array into a separate array
of the 'object[]' type.
The 'TreeStore.AppendValues (params object[] values)' overload no longer calls
the 'TreeStore.Appendvalues (Array values)' overload since the indirection only
wastes time and memory. It now directly calls `SetValues`.
296 lines
9.2 KiB
C#
296 lines
9.2 KiB
C#
// Gtk.ListStore.cs - Gtk ListStore class customizations
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//
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// Author: Kristian Rietveld <kris@gtk.org>
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//
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// (c) 2002 Kristian Rietveld
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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.Collections;
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using System.Runtime.InteropServices;
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public partial class ListStore : IEnumerable {
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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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{
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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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{
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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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{
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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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{
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GLib.Value val = new GLib.Value (value);
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SetValue (iter, column, val);
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val.Dispose ();
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}
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public void SetValue (Gtk.TreeIter iter, int column, double value)
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{
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GLib.Value val = new GLib.Value (value);
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SetValue (iter, column, val);
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val.Dispose ();
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}
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public void SetValue (Gtk.TreeIter iter, int column, int value)
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{
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GLib.Value val = new GLib.Value (value);
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SetValue (iter, column, val);
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val.Dispose ();
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}
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public void SetValue (Gtk.TreeIter iter, int column, long value)
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{
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GLib.Value val = new GLib.Value (value);
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SetValue (iter, column, val);
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val.Dispose ();
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}
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public void SetValue (Gtk.TreeIter iter, int column, string value)
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{
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GLib.Value val = new GLib.Value (value);
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SetValue (iter, column, val);
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val.Dispose ();
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}
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public void SetValue (Gtk.TreeIter iter, int column, float value)
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{
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GLib.Value val = new GLib.Value (value);
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SetValue (iter, column, val);
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val.Dispose ();
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}
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public void SetValue (Gtk.TreeIter iter, int column, uint value)
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{
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GLib.Value val = new GLib.Value (value);
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SetValue (iter, column, val);
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val.Dispose ();
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}
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public void SetValue (Gtk.TreeIter iter, int column, object value)
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{
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GLib.Value val = new GLib.Value (value);
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SetValue (iter, column, val);
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val.Dispose ();
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}
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public Gtk.TreeIter AppendValues (Array values)
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{
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Gtk.TreeIter iter = Append();
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SetValues (iter, values.Explode ());
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return iter;
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}
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public Gtk.TreeIter AppendValues (params object[] values)
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{
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Gtk.TreeIter iter = Append();
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SetValues (iter, values);
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return iter;
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}
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[DllImport (Global.GtkNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern void gtk_list_store_insert_with_valuesv(IntPtr raw, out TreeIter iter, int position, int[] columns, GLib.Value[] values, int n_values);
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public TreeIter InsertWithValues (int position, params object[] values)
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{
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int[] columns = new int[values.Length];
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GLib.Value[] vals = new GLib.Value[values.Length];
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int n_values = 0;
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for (int i = 0; i < values.Length; i++) {
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if (values[i] != null) {
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columns[n_values] = i;
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vals[n_values] = new GLib.Value (values[i]);
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n_values++;
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}
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}
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TreeIter iter;
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gtk_list_store_insert_with_valuesv (Handle, out iter, position, columns, vals, n_values);
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for (int i = 0; i < n_values; i++)
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vals[i].Dispose ();
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return iter;
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}
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[DllImport (Global.GtkNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern void gtk_list_store_set_valuesv(IntPtr raw, ref TreeIter iter, int[] columns, GLib.Value[] values, int n_values);
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public void SetValues (TreeIter iter, params object[] values)
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{
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int[] columns = new int[values.Length];
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GLib.Value[] vals = new GLib.Value[values.Length];
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int n_values = 0;
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for (int i = 0; i < values.Length; i++) {
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if (values[i] != null) {
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columns[n_values] = i;
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vals[n_values] = new GLib.Value (values[i]);
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n_values++;
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}
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}
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gtk_list_store_set_valuesv (Handle, ref iter, columns, vals, n_values);
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for (int i = 0; i < n_values; i++)
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vals[i].Dispose ();
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}
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public ListStore (params GLib.GType[] types) : base (IntPtr.Zero)
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{
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CreateNativeObject (new string [0], new GLib.Value [0]);
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ColumnTypes = types;
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}
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public ListStore (params Type[] types) : base (IntPtr.Zero)
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{
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GLib.GType[] gtypes = new GLib.GType[types.Length];
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int i = 0;
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foreach (Type type in types) {
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gtypes[i] = (GLib.GType) type;
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i++;
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}
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CreateNativeObject (new string [0], new GLib.Value [0]);
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ColumnTypes = gtypes;
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}
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public object GetValue(Gtk.TreeIter iter, int column)
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{
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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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public IEnumerator GetEnumerator()
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{
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return new TreeEnumerator(this);
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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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ListStore sender = GLib.Object.GetObject (arg0) as ListStore;
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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 = sender.IterNChildren ();
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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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ListStore store = GLib.Object.GetObject (tree_model, false) as ListStore;
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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 ();
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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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[GLib.DefaultSignalHandler(Type=typeof(Gtk.ListStore), 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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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 ();
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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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