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gimp/app/widgets/gimpcontainertreestore.c

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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimpcontainertreestore.c
* Copyright (C) 2010 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 3 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, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <string.h>
#include <gegl.h>
#include <gtk/gtk.h>
#include "widgets-types.h"
#include "core/gimpcontainer.h"
#include "core/gimpviewable.h"
#include "gimpcellrendererviewable.h"
#include "gimpcontainertreestore.h"
#include "gimpcontainerview.h"
#include "gimpviewrenderer.h"
enum
{
PROP_0,
PROP_CONTAINER_VIEW,
PROP_USE_NAME
};
typedef struct _GimpContainerTreeStorePrivate GimpContainerTreeStorePrivate;
struct _GimpContainerTreeStorePrivate
{
GimpContainerView *container_view;
GList *renderer_cells;
gboolean use_name;
};
#define GET_PRIVATE(store) \
G_TYPE_INSTANCE_GET_PRIVATE (store, \
GIMP_TYPE_CONTAINER_TREE_STORE, \
GimpContainerTreeStorePrivate)
static void gimp_container_tree_store_constructed (GObject *object);
static void gimp_container_tree_store_finalize (GObject *object);
static void gimp_container_tree_store_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec);
static void gimp_container_tree_store_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec);
static void gimp_container_tree_store_set (GimpContainerTreeStore *store,
GtkTreeIter *iter,
GimpViewable *viewable);
static void gimp_container_tree_store_renderer_update (GimpViewRenderer *renderer,
GimpContainerTreeStore *store);
G_DEFINE_TYPE (GimpContainerTreeStore, gimp_container_tree_store,
GTK_TYPE_TREE_STORE)
#define parent_class gimp_container_tree_store_parent_class
static void
gimp_container_tree_store_class_init (GimpContainerTreeStoreClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->constructed = gimp_container_tree_store_constructed;
object_class->finalize = gimp_container_tree_store_finalize;
object_class->set_property = gimp_container_tree_store_set_property;
object_class->get_property = gimp_container_tree_store_get_property;
g_object_class_install_property (object_class, PROP_CONTAINER_VIEW,
g_param_spec_object ("container-view",
NULL, NULL,
GIMP_TYPE_CONTAINER_VIEW,
GIMP_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY));
g_object_class_install_property (object_class, PROP_USE_NAME,
g_param_spec_boolean ("use-name",
NULL, NULL,
FALSE,
GIMP_PARAM_READWRITE));
g_type_class_add_private (klass, sizeof (GimpContainerTreeStorePrivate));
}
static void
gimp_container_tree_store_init (GimpContainerTreeStore *store)
{
}
static void
gimp_container_tree_store_constructed (GObject *object)
{
G_OBJECT_CLASS (parent_class)->constructed (object);
}
static void
gimp_container_tree_store_finalize (GObject *object)
{
GimpContainerTreeStorePrivate *private = GET_PRIVATE (object);
if (private->renderer_cells)
{
g_list_free (private->renderer_cells);
private->renderer_cells = NULL;
}
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gimp_container_tree_store_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
GimpContainerTreeStorePrivate *private = GET_PRIVATE (object);
switch (property_id)
{
case PROP_CONTAINER_VIEW:
private->container_view = g_value_get_object (value); /* don't ref */
break;
case PROP_USE_NAME:
private->use_name = g_value_get_boolean (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gimp_container_tree_store_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
GimpContainerTreeStorePrivate *private = GET_PRIVATE (object);
switch (property_id)
{
case PROP_CONTAINER_VIEW:
g_value_set_object (value, private->container_view);
break;
case PROP_USE_NAME:
g_value_set_boolean (value, private->use_name);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
/* public functions */
GtkTreeModel *
gimp_container_tree_store_new (GimpContainerView *container_view,
gint n_columns,
GType *types)
{
GimpContainerTreeStore *store;
g_return_val_if_fail (GIMP_IS_CONTAINER_VIEW (container_view), NULL);
g_return_val_if_fail (n_columns >= GIMP_CONTAINER_TREE_STORE_N_COLUMNS, NULL);
g_return_val_if_fail (types != NULL, NULL);
store = g_object_new (GIMP_TYPE_CONTAINER_TREE_STORE,
"container-view", container_view,
NULL);
gtk_tree_store_set_column_types (GTK_TREE_STORE (store), n_columns, types);
return GTK_TREE_MODEL (store);
}
void
gimp_container_tree_store_add_renderer_cell (GimpContainerTreeStore *store,
GtkCellRenderer *cell)
{
GimpContainerTreeStorePrivate *private;
g_return_if_fail (GIMP_IS_CONTAINER_TREE_STORE (store));
g_return_if_fail (GIMP_IS_CELL_RENDERER_VIEWABLE (cell));
private = GET_PRIVATE (store);
private->renderer_cells = g_list_prepend (private->renderer_cells, cell);
}
void
gimp_container_tree_store_set_use_name (GimpContainerTreeStore *store,
gboolean use_name)
{
GimpContainerTreeStorePrivate *private;
g_return_if_fail (GIMP_IS_CONTAINER_TREE_STORE (store));
private = GET_PRIVATE (store);
if (private->use_name != use_name)
{
private->use_name = use_name ? TRUE : FALSE;
g_object_notify (G_OBJECT (store), "use-name");
}
}
gboolean
gimp_container_tree_store_get_use_name (GimpContainerTreeStore *store)
{
g_return_val_if_fail (GIMP_IS_CONTAINER_TREE_STORE (store), FALSE);
return GET_PRIVATE (store)->use_name;
}
static gboolean
gimp_container_tree_store_set_context_foreach (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data)
{
GimpContext *context = data;
GimpViewRenderer *renderer;
gtk_tree_model_get (model, iter,
GIMP_CONTAINER_TREE_STORE_COLUMN_RENDERER, &renderer,
-1);
gimp_view_renderer_set_context (renderer, context);
g_object_unref (renderer);
return FALSE;
}
void
gimp_container_tree_store_set_context (GimpContainerTreeStore *store,
GimpContext *context)
{
g_return_if_fail (GIMP_IS_CONTAINER_TREE_STORE (store));
gtk_tree_model_foreach (GTK_TREE_MODEL (store),
gimp_container_tree_store_set_context_foreach,
context);
}
GtkTreeIter *
gimp_container_tree_store_insert_item (GimpContainerTreeStore *store,
GimpViewable *viewable,
GtkTreeIter *parent,
gint index)
{
GtkTreeIter iter;
g_return_val_if_fail (GIMP_IS_CONTAINER_TREE_STORE (store), NULL);
if (index == -1)
gtk_tree_store_append (GTK_TREE_STORE (store), &iter, parent);
else
gtk_tree_store_insert (GTK_TREE_STORE (store), &iter, parent, index);
gimp_container_tree_store_set (store, &iter, viewable);
return gtk_tree_iter_copy (&iter);
}
void
gimp_container_tree_store_remove_item (GimpContainerTreeStore *store,
GimpViewable *viewable,
GtkTreeIter *iter)
{
if (iter)
{
gtk_tree_store_remove (GTK_TREE_STORE (store), iter);
/* If the store is empty after this remove, clear out renderers
* from all cells so they don't keep refing the viewables
* (see bug #149906).
*/
if (! gtk_tree_model_iter_n_children (GTK_TREE_MODEL (store), NULL))
{
GimpContainerTreeStorePrivate *private = GET_PRIVATE (store);
GList *list;
for (list = private->renderer_cells; list; list = list->next)
g_object_set (list->data, "renderer", NULL, NULL);
}
}
}
void
gimp_container_tree_store_reorder_item (GimpContainerTreeStore *store,
GimpViewable *viewable,
gint new_index,
GtkTreeIter *iter)
{
GimpContainerTreeStorePrivate *private;
GimpViewable *parent;
GimpContainer *container;
g_return_if_fail (GIMP_IS_CONTAINER_TREE_STORE (store));
private = GET_PRIVATE (store);
if (! iter)
return;
parent = gimp_viewable_get_parent (viewable);
if (parent)
container = gimp_viewable_get_children (parent);
else
container = gimp_container_view_get_container (private->container_view);
if (new_index == -1 ||
new_index == gimp_container_get_n_children (container) - 1)
{
gtk_tree_store_move_before (GTK_TREE_STORE (store), iter, NULL);
}
else if (new_index == 0)
{
gtk_tree_store_move_after (GTK_TREE_STORE (store), iter, NULL);
}
else
{
GtkTreePath *path;
GtkTreeIter place_iter;
gint depth;
gint *indices;
gint old_index;
path = gtk_tree_model_get_path (GTK_TREE_MODEL (store), iter);
indices = gtk_tree_path_get_indices (path);
depth = gtk_tree_path_get_depth (path);
old_index = indices[depth - 1];
if (new_index != old_index)
{
indices[depth - 1] = new_index;
gtk_tree_model_get_iter (GTK_TREE_MODEL (store), &place_iter, path);
if (new_index > old_index)
gtk_tree_store_move_after (GTK_TREE_STORE (store),
iter, &place_iter);
else
gtk_tree_store_move_before (GTK_TREE_STORE (store),
iter, &place_iter);
}
gtk_tree_path_free (path);
}
}
gboolean
gimp_container_tree_store_rename_item (GimpContainerTreeStore *store,
GimpViewable *viewable,
GtkTreeIter *iter)
{
gboolean new_name_shorter = FALSE;
g_return_val_if_fail (GIMP_IS_CONTAINER_TREE_STORE (store), FALSE);
if (iter)
{
GimpContainerTreeStorePrivate *private = GET_PRIVATE (store);
gchar *name;
gchar *old_name;
if (private->use_name)
name = (gchar *) gimp_object_get_name (viewable);
else
name = gimp_viewable_get_description (viewable, NULL);
gtk_tree_model_get (GTK_TREE_MODEL (store), iter,
GIMP_CONTAINER_TREE_STORE_COLUMN_NAME, &old_name,
-1);
gtk_tree_store_set (GTK_TREE_STORE (store), iter,
GIMP_CONTAINER_TREE_STORE_COLUMN_NAME, name,
-1);
if (name && old_name && strlen (name) < strlen (old_name))
new_name_shorter = TRUE;
if (! private->use_name)
g_free (name);
g_free (old_name);
}
return new_name_shorter;
}
void
gimp_container_tree_store_clear_items (GimpContainerTreeStore *store)
{
g_return_if_fail (GIMP_IS_CONTAINER_TREE_STORE (store));
gtk_tree_store_clear (GTK_TREE_STORE (store));
/* If the store is empty after this remove, clear out renderers
* from all cells so they don't keep refing the viewables
* (see bug #149906).
*/
if (! gtk_tree_model_iter_n_children (GTK_TREE_MODEL (store), NULL))
{
GimpContainerTreeStorePrivate *private = GET_PRIVATE (store);
GList *list;
for (list = private->renderer_cells; list; list = list->next)
g_object_set (list->data, "renderer", NULL, NULL);
}
}
typedef struct
{
gint view_size;
gint border_width;
} SetSizeForeachData;
static gboolean
gimp_container_tree_store_set_view_size_foreach (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data)
{
SetSizeForeachData *size_data = data;
GimpViewRenderer *renderer;
gtk_tree_model_get (model, iter,
GIMP_CONTAINER_TREE_STORE_COLUMN_RENDERER, &renderer,
-1);
gimp_view_renderer_set_size (renderer,
size_data->view_size,
size_data->border_width);
g_object_unref (renderer);
return FALSE;
}
void
gimp_container_tree_store_set_view_size (GimpContainerTreeStore *store)
{
GimpContainerTreeStorePrivate *private;
SetSizeForeachData size_data;
g_return_if_fail (GIMP_IS_CONTAINER_TREE_STORE (store));
private = GET_PRIVATE (store);
size_data.view_size =
gimp_container_view_get_view_size (private->container_view,
&size_data.border_width);
gtk_tree_model_foreach (GTK_TREE_MODEL (store),
gimp_container_tree_store_set_view_size_foreach,
&size_data);
}
/* private functions */
void
gimp_container_tree_store_columns_init (GType *types,
gint *n_types)
{
g_return_if_fail (types != NULL);
g_return_if_fail (n_types != NULL);
g_return_if_fail (*n_types == 0);
g_assert (GIMP_CONTAINER_TREE_STORE_COLUMN_RENDERER ==
gimp_container_tree_store_columns_add (types, n_types,
GIMP_TYPE_VIEW_RENDERER));
g_assert (GIMP_CONTAINER_TREE_STORE_COLUMN_NAME ==
gimp_container_tree_store_columns_add (types, n_types,
G_TYPE_STRING));
g_assert (GIMP_CONTAINER_TREE_STORE_COLUMN_NAME_ATTRIBUTES ==
gimp_container_tree_store_columns_add (types, n_types,
PANGO_TYPE_ATTR_LIST));
g_assert (GIMP_CONTAINER_TREE_STORE_COLUMN_NAME_SENSITIVE ==
gimp_container_tree_store_columns_add (types, n_types,
G_TYPE_BOOLEAN));
g_assert (GIMP_CONTAINER_TREE_STORE_COLUMN_USER_DATA ==
gimp_container_tree_store_columns_add (types, n_types,
G_TYPE_POINTER));
}
gint
gimp_container_tree_store_columns_add (GType *types,
gint *n_types,
GType type)
{
g_return_val_if_fail (types != NULL, 0);
g_return_val_if_fail (n_types != NULL, 0);
g_return_val_if_fail (*n_types >= 0, 0);
types[*n_types] = type;
(*n_types)++;
return *n_types - 1;
}
static void
gimp_container_tree_store_set (GimpContainerTreeStore *store,
GtkTreeIter *iter,
GimpViewable *viewable)
{
GimpContainerTreeStorePrivate *private = GET_PRIVATE (store);
GimpContext *context;
GimpViewRenderer *renderer;
gchar *name;
gint view_size;
gint border_width;
context = gimp_container_view_get_context (private->container_view);
view_size = gimp_container_view_get_view_size (private->container_view,
&border_width);
renderer = gimp_view_renderer_new (context,
G_TYPE_FROM_INSTANCE (viewable),
view_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_tree_store_renderer_update),
store);
if (private->use_name)
name = (gchar *) gimp_object_get_name (viewable);
else
name = gimp_viewable_get_description (viewable, NULL);
gtk_tree_store_set (GTK_TREE_STORE (store), iter,
GIMP_CONTAINER_TREE_STORE_COLUMN_RENDERER, renderer,
GIMP_CONTAINER_TREE_STORE_COLUMN_NAME, name,
GIMP_CONTAINER_TREE_STORE_COLUMN_NAME_SENSITIVE, TRUE,
-1);
if (! private->use_name)
g_free (name);
g_object_unref (renderer);
}
static void
gimp_container_tree_store_renderer_update (GimpViewRenderer *renderer,
GimpContainerTreeStore *store)
{
GimpContainerTreeStorePrivate *private = GET_PRIVATE (store);
GtkTreeIter *iter;
iter = gimp_container_view_lookup (private->container_view,
renderer->viewable);
if (iter)
{
GtkTreePath *path;
path = gtk_tree_model_get_path (GTK_TREE_MODEL (store), iter);
gtk_tree_model_row_changed (GTK_TREE_MODEL (store), path, iter);
gtk_tree_path_free (path);
}
}
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