1 /* $Id: treemodelfilter.hg,v 1.16 2006/04/12 11:11:25 murrayc Exp $ */
3 /* Copyright(C) 1998-2002 The gtkmm Development Team
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or(at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
15 * You should have received a copy of the GNU Library General Public
16 * License along with this library; if not, write to the Free
17 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #include <gtkmm/treeiter.h>
21 #include <gtkmm/treemodel.h>
22 // We couldn't include it in treemodel.h, but doing it here makes it easier for people.
23 #include <gtkmm/treepath.h>
26 _PINCLUDE(glibmm/private/object_p.h)
35 class TreeModelFilter :
39 _CLASS_GOBJECT(TreeModelFilter, GtkTreeModelFilter, GTK_TREE_MODEL_FILTER, Glib::Object, GObject)
40 _IMPLEMENTS_INTERFACE(TreeModel)
44 explicit TreeModelFilter(const Glib::RefPtr<TreeModel>& child_model);
45 explicit TreeModelFilter(const Glib::RefPtr<TreeModel>& child_model, const TreeModel::Path& virtual_root);
46 _IGNORE(gtk_tree_model_filter_new)
50 /** This creates a TreeModelFilter with @a child_model as the child model.
51 * You can use set_visible_func(), set_visible_column() and/or set_modify_func() to change the mapping of child
52 * model to parent model.
54 _WRAP_CREATE(const Glib::RefPtr<TreeModel>& child_model)
56 /** This creates a TreeModelFilter with @a child_model as the child model, and @a root as the virtual root.
57 * You can use set_visible_func(), set_visible_column() and/or set_modify_func() to change the mapping of child
58 * model to parent model.
60 _WRAP_CREATE(const Glib::RefPtr<TreeModel>& child_model, const TreeModel::Path& virtual_root)
64 * bool on_visible(const TreeModel::const_iterator& iter);
65 * This should return true if the given row should be visible and false otherwise.
67 typedef sigc::slot<bool, const TreeModel::const_iterator&> SlotVisible;
69 /** Sets the "visible" callback used when filtering the filter.
70 * The callback function should return true if the given row should be visible and false otherwise.
72 * @param slot A callback slot which determines whether the row should be visible.
74 void set_visible_func(const SlotVisible& slot);
75 _IGNORE(gtk_tree_model_filter_set_visible_func)
77 //TODO: It would be nicer to use "const TreeModelColumnBase& column" instead of "int column",
78 //but how can we get the TreeModelColumnBase from the int in the SignalProxy?
79 //Maybe we could pass the ColumnsRecord to set_modify_func() and store it in the proxy? murrayc.
81 * void on_modify(const Gtk::TreeModel::iterator& iter, Glib::ValueBase& value, int column);
83 * where iter is an iterator to a row in the child model,
84 * value is an output parameter in which you must store the value to be used in the parent model's row,
85 * column is the column in the parent row whose row value you must provide in the value output paramater.
87 typedef sigc::slot<void, const Gtk::TreeModel::iterator& /* iter */, Glib::ValueBase& /* value */, int /* column */> SlotModify;
89 /** Specify columns that will be provided by this model, and a callback that will provide data for these
90 * columns based on data in the columns of the child model.
91 * The modify function will get called for each data access.
93 * @param columns Column types for this model (which will be exposed to the parent model/view).
94 * @param slot A callback which will be called for each data access.
96 void set_modify_func(const TreeModelColumnRecord& columns, const SlotModify& slot);
97 _IGNORE(gtk_tree_model_filter_set_modify_func)
99 _WRAP_METHOD(void set_visible_column(const TreeModelColumnBase& column), gtk_tree_model_filter_set_visible_column)
100 _WRAP_METHOD(void set_visible_column(int column), gtk_tree_model_filter_set_visible_column)
102 _WRAP_METHOD(Glib::RefPtr<TreeModel> get_model(), gtk_tree_model_filter_get_model, refreturn)
103 _WRAP_METHOD(Glib::RefPtr<const TreeModel> get_model() const, gtk_tree_model_filter_get_model, refreturn, constversion)
105 /** Gets an iterator that points to the sorted row that corresponds to the child row pointed at by child_iter.
107 * @param child_iter A valid iterator pointing to a row on the child model.
108 * @result A valid iterator that points to the row in this sorted model.
110 iterator convert_child_iter_to_iter(const iterator& child_iter) const;
112 /** Gets an iterator that points to the child row that corresponds to the sorted row pointed at by sorted_iter.
114 * @param filter_iter A valid iterator pointing to a row on the sorted model.
115 * @result A valid iterator that points to the row in the child model.
117 iterator convert_iter_to_child_iter(const iterator& filter_iter) const;
119 //TODO: Remove these deprecated non-const versions when we can break ABI:
120 _WRAP_METHOD(Path convert_child_path_to_path(const Path& child_path), gtk_tree_model_filter_convert_child_path_to_path, deprecated "Use convert_child_path_to_path(const Path& child_path) const")
122 _WRAP_METHOD(Path convert_path_to_child_path(const Path& filter_path), gtk_tree_model_filter_convert_path_to_child_path, deprecated "convert_path_to_child_path(const Path& filter_path) const")
124 _WRAP_METHOD(Path convert_child_path_to_path(const Path& child_path) const, gtk_tree_model_filter_convert_child_path_to_path)
125 _WRAP_METHOD(Path convert_path_to_child_path(const Path& filter_path) const, gtk_tree_model_filter_convert_path_to_child_path)
127 _WRAP_METHOD(void refilter(), gtk_tree_model_filter_refilter)
128 _WRAP_METHOD(void clear_cache(), gtk_tree_model_filter_clear_cache)
131 virtual void set_value_impl(const iterator& row, int column, const Glib::ValueBase& value);