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gimp/app/widgets/gimpcontainercombobox.c

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/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimpcontainercombobox.c
* Copyright (C) 2003 Michael Natterer <mitch@gimp.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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 General Public License for more details.
*
* You should have received a copy of the GNU 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.
*/
#include "config.h"
#include <string.h>
#include <gtk/gtk.h>
#include "widgets-types.h"
#include "core/gimpcontainer.h"
#include "core/gimpcontext.h"
#include "core/gimpviewable.h"
#include "gimpcellrendererviewable.h"
#include "gimpcontainercombobox.h"
#include "gimpcontainerview.h"
#include "gimpviewrenderer.h"
enum
{
COLUMN_RENDERER,
COLUMN_NAME,
NUM_COLUMNS
};
static void gimp_container_combo_box_class_init (GimpContainerComboBoxClass *klass);
static void gimp_container_combo_box_init (GimpContainerComboBox *view);
static void gimp_container_combo_box_view_iface_init (GimpContainerViewInterface *view_iface);
static void gimp_container_combo_box_unrealize (GtkWidget *widget);
static gpointer gimp_container_combo_box_insert_item (GimpContainerView *view,
GimpViewable *viewable,
gint index);
static void gimp_container_combo_box_remove_item (GimpContainerView *view,
GimpViewable *viewable,
gpointer insert_data);
static void gimp_container_combo_box_reorder_item (GimpContainerView *view,
GimpViewable *viewable,
gint new_index,
gpointer insert_data);
static void gimp_container_combo_box_rename_item (GimpContainerView *view,
GimpViewable *viewable,
gpointer insert_data);
static gboolean gimp_container_combo_box_select_item (GimpContainerView *view,
GimpViewable *viewable,
gpointer insert_data);
static void gimp_container_combo_box_clear_items (GimpContainerView *view);
static void gimp_container_combo_box_set_preview_size (GimpContainerView *view);
static void gimp_container_combo_box_changed (GtkComboBox *combo_box,
GimpContainerView *view);
static void gimp_container_combo_box_renderer_update (GimpViewRenderer *renderer,
GimpContainerView *view);
static GtkComboBoxClass *parent_class = NULL;
static GimpContainerViewInterface *parent_view_iface = NULL;
GType
gimp_container_combo_box_get_type (void)
{
static GType view_type = 0;
if (! view_type)
{
static const GTypeInfo view_info =
{
sizeof (GimpContainerComboBoxClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) gimp_container_combo_box_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GimpContainerComboBox),
0, /* n_preallocs */
(GInstanceInitFunc) gimp_container_combo_box_init,
};
static const GInterfaceInfo view_iface_info =
{
(GInterfaceInitFunc) gimp_container_combo_box_view_iface_init,
NULL, /* iface_finalize */
NULL /* iface_data */
};
view_type = g_type_register_static (GTK_TYPE_COMBO_BOX,
"GimpContainerComboBox",
&view_info, 0);
g_type_add_interface_static (view_type, GIMP_TYPE_CONTAINER_VIEW,
&view_iface_info);
}
return view_type;
}
static void
gimp_container_combo_box_class_init (GimpContainerComboBoxClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
parent_class = g_type_class_peek_parent (klass);
object_class->set_property = gimp_container_view_set_property;
object_class->get_property = gimp_container_view_get_property;
widget_class->unrealize = gimp_container_combo_box_unrealize;
gimp_container_view_install_properties (object_class);
}
static void
gimp_container_combo_box_init (GimpContainerComboBox *combo_box)
{
GtkListStore *store;
GtkCellLayout *layout;
GtkCellRenderer *cell;
store = gtk_list_store_new (NUM_COLUMNS,
GIMP_TYPE_VIEW_RENDERER,
G_TYPE_STRING);
gtk_combo_box_set_model (GTK_COMBO_BOX (combo_box), GTK_TREE_MODEL (store));
g_object_unref (store);
layout = GTK_CELL_LAYOUT (combo_box);
cell = gimp_cell_renderer_viewable_new ();
gtk_cell_layout_pack_start (layout, cell, FALSE);
gtk_cell_layout_set_attributes (layout, cell,
"renderer", COLUMN_RENDERER,
NULL);
combo_box->viewable_renderer = cell;
cell = g_object_new (GTK_TYPE_CELL_RENDERER_TEXT,
"ellipsize", PANGO_ELLIPSIZE_MIDDLE,
NULL);
gtk_cell_layout_pack_start (layout, cell, TRUE);
gtk_cell_layout_set_attributes (layout, cell,
"text", COLUMN_NAME,
NULL);
g_signal_connect (combo_box, "changed",
G_CALLBACK (gimp_container_combo_box_changed),
combo_box);
}
static void
gimp_container_combo_box_view_iface_init (GimpContainerViewInterface *view_iface)
{
parent_view_iface = g_type_interface_peek_parent (view_iface);
if (! parent_view_iface)
parent_view_iface = g_type_default_interface_peek (GIMP_TYPE_CONTAINER_VIEW);
view_iface->insert_item = gimp_container_combo_box_insert_item;
view_iface->remove_item = gimp_container_combo_box_remove_item;
view_iface->reorder_item = gimp_container_combo_box_reorder_item;
view_iface->rename_item = gimp_container_combo_box_rename_item;
view_iface->select_item = gimp_container_combo_box_select_item;
view_iface->clear_items = gimp_container_combo_box_clear_items;
view_iface->set_preview_size = gimp_container_combo_box_set_preview_size;
view_iface->insert_data_free = (GDestroyNotify) g_free;
}
GtkWidget *
gimp_container_combo_box_new (GimpContainer *container,
GimpContext *context,
gint preview_size,
gint preview_border_width)
{
GtkWidget *combo_box;
GimpContainerView *view;
g_return_val_if_fail (container == NULL || GIMP_IS_CONTAINER (container),
NULL);
g_return_val_if_fail (context == NULL || GIMP_IS_CONTEXT (context), NULL);
combo_box = g_object_new (GIMP_TYPE_CONTAINER_COMBO_BOX, NULL);
view = GIMP_CONTAINER_VIEW (combo_box);
gimp_container_view_set_preview_size (view,
preview_size, preview_border_width);
if (container)
gimp_container_view_set_container (view, container);
if (context)
gimp_container_view_set_context (view, context);
return combo_box;
}
static void
gimp_container_combo_box_set (GimpContainerComboBox *combo_box,
GtkTreeIter *iter,
GimpViewable *viewable)
{
GimpContainerView *view = GIMP_CONTAINER_VIEW (combo_box);
GtkTreeModel *model;
GimpViewRenderer *renderer;
gchar *name;
gint preview_size;
gint border_width;
model = gtk_combo_box_get_model (GTK_COMBO_BOX (combo_box));
preview_size = gimp_container_view_get_preview_size (view, &border_width);
name = gimp_viewable_get_description (viewable, NULL);
renderer = gimp_view_renderer_new (G_TYPE_FROM_INSTANCE (viewable),
preview_size, border_width,
FALSE);
gimp_view_renderer_set_viewable (renderer, viewable);
gimp_view_renderer_remove_idle (renderer);
g_signal_connect (renderer, "update",
G_CALLBACK (gimp_container_combo_box_renderer_update),
view);
gtk_list_store_set (GTK_LIST_STORE (model), iter,
COLUMN_RENDERER, renderer,
COLUMN_NAME, name,
-1);
g_object_unref (renderer);
g_free (name);
}
static void
gimp_container_combo_box_unrealize (GtkWidget *widget)
{
GtkTreeModel *model = gtk_combo_box_get_model (GTK_COMBO_BOX (widget));
GtkTreeIter iter;
gboolean iter_valid;
for (iter_valid = gtk_tree_model_get_iter_first (model, &iter);
iter_valid;
iter_valid = gtk_tree_model_iter_next (model, &iter))
{
GimpViewRenderer *renderer;
gtk_tree_model_get (model, &iter,
COLUMN_RENDERER, &renderer,
-1);
gimp_view_renderer_unrealize (renderer);
g_object_unref (renderer);
}
GTK_WIDGET_CLASS (parent_class)->unrealize (widget);
}
/* GimpContainerView methods */
static gpointer
gimp_container_combo_box_insert_item (GimpContainerView *view,
GimpViewable *viewable,
gint index)
{
GtkTreeModel *model = gtk_combo_box_get_model (GTK_COMBO_BOX (view));
GtkTreeIter *iter;
iter = g_new0 (GtkTreeIter, 1);
if (index == -1)
gtk_list_store_append (GTK_LIST_STORE (model), iter);
else
gtk_list_store_insert (GTK_LIST_STORE (model), iter, index);
gimp_container_combo_box_set (GIMP_CONTAINER_COMBO_BOX (view),
iter, viewable);
return (gpointer) iter;
}
static void
gimp_container_combo_box_remove_item (GimpContainerView *view,
GimpViewable *viewable,
gpointer insert_data)
{
GtkTreeModel *model = gtk_combo_box_get_model (GTK_COMBO_BOX (view));
GtkTreeIter *iter = insert_data;
if (iter)
{
gtk_list_store_remove (GTK_LIST_STORE (model), iter);
#ifdef __GNUC__
#warning FIXME: remove this hack as soon as bug #149906 is fixed
#endif
/* if the store is empty after this remove, clear out renderers
* from all cells so they don't keep refing the viewables
*/
if (! gtk_tree_model_iter_n_children (model, NULL))
g_object_set (GIMP_CONTAINER_COMBO_BOX (view)->viewable_renderer,
"renderer", NULL,
NULL);
}
}
static void
gimp_container_combo_box_reorder_item (GimpContainerView *view,
GimpViewable *viewable,
gint new_index,
gpointer insert_data)
{
GtkTreeModel *model = gtk_combo_box_get_model (GTK_COMBO_BOX (view));
GimpContainer *container = gimp_container_view_get_container (view);
GtkTreeIter *iter = insert_data;
if (!iter)
return;
if (new_index == -1 || new_index == container->num_children - 1)
{
gtk_list_store_move_before (GTK_LIST_STORE (model), iter, NULL);
}
else if (new_index == 0)
{
gtk_list_store_move_after (GTK_LIST_STORE (model), iter, NULL);
}
else
{
GtkTreePath *path;
gint old_index;
path = gtk_tree_model_get_path (model, iter);
old_index = gtk_tree_path_get_indices (path)[0];
gtk_tree_path_free (path);
if (new_index != old_index)
{
GtkTreeIter place;
path = gtk_tree_path_new_from_indices (new_index, -1);
gtk_tree_model_get_iter (model, &place, path);
gtk_tree_path_free (path);
if (new_index > old_index)
gtk_list_store_move_after (GTK_LIST_STORE (model), iter, &place);
else
gtk_list_store_move_before (GTK_LIST_STORE (model), iter, &place);
}
}
}
static void
gimp_container_combo_box_rename_item (GimpContainerView *view,
GimpViewable *viewable,
gpointer insert_data)
{
GtkTreeModel *model = gtk_combo_box_get_model (GTK_COMBO_BOX (view));
GtkTreeIter *iter = insert_data;
if (iter)
{
gchar *name = gimp_viewable_get_description (viewable, NULL);
gtk_list_store_set (GTK_LIST_STORE (model), iter,
COLUMN_NAME, name,
-1);
g_free (name);
}
}
static gboolean
gimp_container_combo_box_select_item (GimpContainerView *view,
GimpViewable *viewable,
gpointer insert_data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (view);
GtkTreeIter *iter = insert_data;
g_signal_handlers_block_by_func (combo_box,
gimp_container_combo_box_changed,
view);
if (iter)
{
gtk_combo_box_set_active_iter (combo_box, iter);
}
else
{
gtk_combo_box_set_active (combo_box, -1);
}
g_signal_handlers_unblock_by_func (combo_box,
gimp_container_combo_box_changed,
view);
return TRUE;
}
static void
gimp_container_combo_box_clear_items (GimpContainerView *view)
{
GtkTreeModel *model = gtk_combo_box_get_model (GTK_COMBO_BOX (view));
gtk_list_store_clear (GTK_LIST_STORE (model));
parent_view_iface->clear_items (view);
}
static void
gimp_container_combo_box_set_preview_size (GimpContainerView *view)
{
GtkTreeModel *model = gtk_combo_box_get_model (GTK_COMBO_BOX (view));
GtkTreeIter iter;
gboolean iter_valid;
gint preview_size;
gint border_width;
preview_size = gimp_container_view_get_preview_size (view, &border_width);
for (iter_valid = gtk_tree_model_get_iter_first (model, &iter);
iter_valid;
iter_valid = gtk_tree_model_iter_next (model, &iter))
{
GimpViewRenderer *renderer;
gtk_tree_model_get (model, &iter,
COLUMN_RENDERER, &renderer,
-1);
gimp_view_renderer_set_size (renderer, preview_size, border_width);
g_object_unref (renderer);
}
}
static void
gimp_container_combo_box_changed (GtkComboBox *combo_box,
GimpContainerView *view)
{
GtkTreeIter iter;
if (parent_class->changed)
parent_class->changed (combo_box);
if (gtk_combo_box_get_active_iter (combo_box, &iter))
{
GimpViewRenderer *renderer;
gtk_tree_model_get (gtk_combo_box_get_model (combo_box), &iter,
COLUMN_RENDERER, &renderer,
-1);
gimp_container_view_item_selected (view, renderer->viewable);
g_object_unref (renderer);
}
}
static void
gimp_container_combo_box_renderer_update (GimpViewRenderer *renderer,
GimpContainerView *view)
{
GtkTreeIter *iter = gimp_container_view_lookup (view, renderer->viewable);
if (iter)
{
GtkTreeModel *model = gtk_combo_box_get_model (GTK_COMBO_BOX (view));
GtkTreePath *path;
path = gtk_tree_model_get_path (model, iter);
gtk_tree_model_row_changed (model, path, iter);
gtk_tree_path_free (path);
}
}
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