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gimp/app/tools/gimpimagemaptool.c

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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* 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/>.
*/
/* This file contains a base class for tools that implement on canvas
* preview for non destructive editing. The processing of the pixels can
* be done either by a gegl op or by a C function (apply_func).
*
* For the core side of this, please see /app/core/gimpimagemap.c.
*/
#include "config.h"
#include <string.h>
#include <gegl.h>
#include <gtk/gtk.h>
#include <gdk/gdkkeysyms.h>
#include "libgimpbase/gimpbase.h"
#include "libgimpconfig/gimpconfig.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "tools-types.h"
#include "config/gimpguiconfig.h"
#include "core/gimp.h"
#include "core/gimpdrawable.h"
#include "core/gimperror.h"
#include "core/gimpimage.h"
#include "core/gimpimage-pick-color.h"
#include "core/gimpimagemap.h"
#include "core/gimpimagemapconfig.h"
#include "core/gimplist.h"
#include "core/gimppickable.h"
#include "core/gimpprojection.h"
#include "core/gimptoolinfo.h"
#include "widgets/gimpdialogfactory.h"
#include "widgets/gimpoverlaybox.h"
#include "widgets/gimpoverlaydialog.h"
#include "widgets/gimpsettingsbox.h"
#include "widgets/gimpwidgets-utils.h"
#include "display/gimpdisplay.h"
#include "display/gimpdisplayshell.h"
#include "display/gimpdisplayshell-transform.h"
#include "display/gimptooldialog.h"
#include "gimpcoloroptions.h"
#include "gimpimagemaptool.h"
#include "gimpimagemaptool-settings.h"
#include "gimptoolcontrol.h"
#include "tool_manager.h"
#include "gimp-intl.h"
/* local function prototypes */
static void gimp_image_map_tool_class_init (GimpImageMapToolClass *klass);
static void gimp_image_map_tool_base_init (GimpImageMapToolClass *klass);
static void gimp_image_map_tool_init (GimpImageMapTool *im_tool);
static void gimp_image_map_tool_constructed (GObject *object);
static void gimp_image_map_tool_finalize (GObject *object);
static gboolean gimp_image_map_tool_initialize (GimpTool *tool,
GimpDisplay *display,
GError **error);
static void gimp_image_map_tool_control (GimpTool *tool,
GimpToolAction action,
GimpDisplay *display);
static gboolean gimp_image_map_tool_key_press (GimpTool *tool,
GdkEventKey *kevent,
GimpDisplay *display);
static void gimp_image_map_tool_options_notify (GimpTool *tool,
GimpToolOptions *options,
const GParamSpec *pspec);
static gboolean gimp_image_map_tool_pick_color (GimpColorTool *color_tool,
gint x,
gint y,
GimpImageType *sample_type,
GimpRGB *color,
gint *color_index);
static void gimp_image_map_tool_map (GimpImageMapTool *im_tool);
static void gimp_image_map_tool_dialog (GimpImageMapTool *im_tool);
static void gimp_image_map_tool_reset (GimpImageMapTool *im_tool);
static void gimp_image_map_tool_flush (GimpImageMap *image_map,
GimpImageMapTool *im_tool);
static void gimp_image_map_tool_response (GtkWidget *widget,
gint response_id,
GimpImageMapTool *im_tool);
static void gimp_image_map_tool_dialog_hide (GimpImageMapTool *im_tool);
static void gimp_image_map_tool_dialog_destroy (GimpImageMapTool *im_tool);
static void gimp_image_map_tool_gegl_notify (GObject *config,
const GParamSpec *pspec,
GimpImageMapTool *im_tool);
static GimpColorToolClass *parent_class = NULL;
GType
gimp_image_map_tool_get_type (void)
{
static GType type = 0;
if (! type)
{
const GTypeInfo info =
{
sizeof (GimpImageMapToolClass),
(GBaseInitFunc) gimp_image_map_tool_base_init,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) gimp_image_map_tool_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GimpImageMapTool),
0, /* n_preallocs */
(GInstanceInitFunc) gimp_image_map_tool_init,
};
type = g_type_register_static (GIMP_TYPE_COLOR_TOOL,
"GimpImageMapTool",
&info, 0);
}
return type;
}
static void
gimp_image_map_tool_class_init (GimpImageMapToolClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GimpToolClass *tool_class = GIMP_TOOL_CLASS (klass);
GimpColorToolClass *color_tool_class = GIMP_COLOR_TOOL_CLASS (klass);
parent_class = g_type_class_peek_parent (klass);
object_class->constructed = gimp_image_map_tool_constructed;
object_class->finalize = gimp_image_map_tool_finalize;
tool_class->initialize = gimp_image_map_tool_initialize;
tool_class->control = gimp_image_map_tool_control;
tool_class->key_press = gimp_image_map_tool_key_press;
tool_class->options_notify = gimp_image_map_tool_options_notify;
color_tool_class->pick = gimp_image_map_tool_pick_color;
klass->dialog_desc = NULL;
klass->settings_name = NULL;
klass->import_dialog_title = NULL;
klass->export_dialog_title = NULL;
klass->get_operation = NULL;
klass->map = NULL;
klass->dialog = NULL;
klass->reset = NULL;
klass->settings_import = gimp_image_map_tool_real_settings_import;
klass->settings_export = gimp_image_map_tool_real_settings_export;
}
static void
gimp_image_map_tool_base_init (GimpImageMapToolClass *klass)
{
klass->recent_settings = gimp_list_new (GIMP_TYPE_IMAGE_MAP_CONFIG, TRUE);
gimp_list_set_sort_func (GIMP_LIST (klass->recent_settings),
(GCompareFunc) gimp_image_map_config_compare);
}
static void
gimp_image_map_tool_init (GimpImageMapTool *image_map_tool)
{
GimpTool *tool = GIMP_TOOL (image_map_tool);
gimp_tool_control_set_scroll_lock (tool->control, TRUE);
gimp_tool_control_set_preserve (tool->control, FALSE);
gimp_tool_control_set_dirty_mask (tool->control,
GIMP_DIRTY_IMAGE |
GIMP_DIRTY_IMAGE_STRUCTURE |
GIMP_DIRTY_DRAWABLE |
GIMP_DIRTY_SELECTION);
image_map_tool->drawable = NULL;
image_map_tool->operation = NULL;
image_map_tool->config = NULL;
image_map_tool->default_config = NULL;
image_map_tool->image_map = NULL;
image_map_tool->dialog = NULL;
image_map_tool->main_vbox = NULL;
image_map_tool->settings_box = NULL;
image_map_tool->label_group = NULL;
}
static void
gimp_image_map_tool_constructed (GObject *object)
{
GimpImageMapTool *image_map_tool = GIMP_IMAGE_MAP_TOOL (object);
GimpImageMapToolClass *klass;
if (G_OBJECT_CLASS (parent_class)->constructed)
G_OBJECT_CLASS (parent_class)->constructed (object);
klass = GIMP_IMAGE_MAP_TOOL_GET_CLASS (image_map_tool);
if (klass->get_operation)
image_map_tool->operation = klass->get_operation (image_map_tool,
&image_map_tool->config);
}
static void
gimp_image_map_tool_finalize (GObject *object)
{
GimpImageMapTool *image_map_tool = GIMP_IMAGE_MAP_TOOL (object);
if (image_map_tool->operation)
{
g_object_unref (image_map_tool->operation);
image_map_tool->operation = NULL;
}
if (image_map_tool->config)
{
g_object_unref (image_map_tool->config);
image_map_tool->config = NULL;
}
if (image_map_tool->default_config)
{
g_object_unref (image_map_tool->default_config);
image_map_tool->default_config = NULL;
}
if (image_map_tool->dialog)
gimp_image_map_tool_dialog_destroy (image_map_tool);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
#define RESPONSE_RESET 1
static gboolean
gimp_image_map_tool_initialize (GimpTool *tool,
GimpDisplay *display,
GError **error)
{
GimpImageMapTool *image_map_tool = GIMP_IMAGE_MAP_TOOL (tool);
GimpToolInfo *tool_info = tool->tool_info;
GimpImage *image = gimp_display_get_image (display);
GimpDrawable *drawable = gimp_image_get_active_drawable (image);
GimpDisplayShell *display_shell = gimp_display_get_shell (display);
if (gimp_viewable_get_children (GIMP_VIEWABLE (drawable)))
{
g_set_error_literal (error, GIMP_ERROR, GIMP_FAILED,
_("Cannot modify the pixels of layer groups."));
return FALSE;
}
if (gimp_item_is_content_locked (GIMP_ITEM (drawable)))
{
g_set_error_literal (error, GIMP_ERROR, GIMP_FAILED,
_("The active layer's pixels are locked."));
return FALSE;
}
/* set display so the dialog can be hidden on display destruction */
tool->display = display;
if (! image_map_tool->dialog)
{
GimpImageMapToolClass *klass;
GtkWidget *dialog;
GtkWidget *vbox;
GtkWidget *toggle;
klass = GIMP_IMAGE_MAP_TOOL_GET_CLASS (image_map_tool);
/* disabled for at least GIMP 2.8 */
image_map_tool->overlay = FALSE;
if (image_map_tool->overlay)
{
image_map_tool->dialog = dialog =
gimp_overlay_dialog_new (tool_info,
klass->dialog_desc,
GIMP_STOCK_RESET, RESPONSE_RESET,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
GTK_STOCK_OK, GTK_RESPONSE_OK,
NULL);
gtk_container_set_border_width (GTK_CONTAINER (dialog), 6);
gimp_overlay_box_add_child (GIMP_OVERLAY_BOX (display_shell->canvas),
dialog, 1.0, 1.0);
gimp_overlay_box_set_child_angle (GIMP_OVERLAY_BOX (display_shell->canvas),
dialog, 0.0);
image_map_tool->main_vbox = vbox = gtk_vbox_new (FALSE, 6);
gtk_container_add (GTK_CONTAINER (dialog), vbox);
}
else
{
image_map_tool->dialog = dialog =
gimp_tool_dialog_new (tool_info,
display_shell,
klass->dialog_desc,
GIMP_STOCK_RESET, RESPONSE_RESET,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
GTK_STOCK_OK, GTK_RESPONSE_OK,
NULL);
gtk_dialog_set_alternative_button_order (GTK_DIALOG (dialog),
RESPONSE_RESET,
GTK_RESPONSE_OK,
GTK_RESPONSE_CANCEL,
-1);
image_map_tool->main_vbox = vbox = gtk_vbox_new (FALSE, 6);
gtk_container_set_border_width (GTK_CONTAINER (vbox), 6);
gtk_box_pack_start (GTK_BOX (gtk_dialog_get_content_area (GTK_DIALOG (dialog))),
vbox, TRUE, TRUE, 0);
}
g_signal_connect_object (dialog, "response",
G_CALLBACK (gimp_image_map_tool_response),
G_OBJECT (image_map_tool), 0);
if (klass->settings_name)
gimp_image_map_tool_add_settings_gui (image_map_tool);
/* The preview toggle */
toggle = gimp_prop_check_button_new (G_OBJECT (tool_info->tool_options),
"preview",
_("_Preview"));
gtk_box_pack_end (GTK_BOX (image_map_tool->main_vbox), toggle,
FALSE, FALSE, 0);
gtk_widget_show (toggle);
/* Fill in subclass widgets */
gimp_image_map_tool_dialog (image_map_tool);
gtk_widget_show (vbox);
if (image_map_tool->operation)
g_signal_connect_object (tool_info->gimp->config, "notify::use-gegl",
G_CALLBACK (gimp_image_map_tool_gegl_notify),
image_map_tool, 0);
}
else if (GIMP_IS_OVERLAY_DIALOG (image_map_tool->dialog) &&
! gtk_widget_get_parent (image_map_tool->dialog))
{
gimp_overlay_box_add_child (GIMP_OVERLAY_BOX (display_shell->canvas),
image_map_tool->dialog, 1.0, 1.0);
g_object_unref (image_map_tool->dialog);
}
if (! image_map_tool->overlay)
{
gimp_viewable_dialog_set_viewable (GIMP_VIEWABLE_DIALOG (image_map_tool->dialog),
GIMP_VIEWABLE (drawable),
GIMP_CONTEXT (tool_info->tool_options));
gimp_tool_dialog_set_shell (GIMP_TOOL_DIALOG (image_map_tool->dialog),
display_shell);
}
gtk_widget_show (image_map_tool->dialog);
image_map_tool->drawable = drawable;
gimp_image_map_tool_create_map (image_map_tool);
return TRUE;
}
static void
gimp_image_map_tool_control (GimpTool *tool,
GimpToolAction action,
GimpDisplay *display)
{
GimpImageMapTool *image_map_tool = GIMP_IMAGE_MAP_TOOL (tool);
switch (action)
{
case GIMP_TOOL_ACTION_PAUSE:
case GIMP_TOOL_ACTION_RESUME:
break;
case GIMP_TOOL_ACTION_HALT:
gimp_image_map_tool_dialog_hide (image_map_tool);
if (image_map_tool->image_map)
{
gimp_tool_control_set_preserve (tool->control, TRUE);
gimp_image_map_abort (image_map_tool->image_map);
g_object_unref (image_map_tool->image_map);
image_map_tool->image_map = NULL;
gimp_tool_control_set_preserve (tool->control, FALSE);
gimp_image_flush (gimp_display_get_image (tool->display));
}
tool->drawable = NULL;
break;
}
GIMP_TOOL_CLASS (parent_class)->control (tool, action, display);
}
static gboolean
gimp_image_map_tool_key_press (GimpTool *tool,
GdkEventKey *kevent,
GimpDisplay *display)
{
GimpImageMapTool *image_map_tool = GIMP_IMAGE_MAP_TOOL (tool);
if (image_map_tool->dialog && display == tool->display)
{
switch (kevent->keyval)
{
case GDK_KEY_Return:
case GDK_KEY_KP_Enter:
case GDK_KEY_ISO_Enter:
gimp_image_map_tool_response (image_map_tool->dialog,
GTK_RESPONSE_OK,
image_map_tool);
return TRUE;
case GDK_KEY_BackSpace:
gimp_image_map_tool_response (image_map_tool->dialog,
RESPONSE_RESET,
image_map_tool);
return TRUE;
case GDK_KEY_Escape:
gimp_image_map_tool_response (image_map_tool->dialog,
GTK_RESPONSE_CANCEL,
image_map_tool);
return TRUE;
}
}
return FALSE;
}
static void
gimp_image_map_tool_options_notify (GimpTool *tool,
GimpToolOptions *options,
const GParamSpec *pspec)
{
GimpImageMapTool *image_map_tool = GIMP_IMAGE_MAP_TOOL (tool);
if (! strcmp (pspec->name, "preview") &&
image_map_tool->image_map)
{
GimpImageMapOptions *im_options = GIMP_IMAGE_MAP_OPTIONS (options);
if (im_options->preview)
{
gimp_tool_control_set_preserve (tool->control, TRUE);
gimp_image_map_tool_map (image_map_tool);
gimp_tool_control_set_preserve (tool->control, FALSE);
}
else
{
gimp_tool_control_set_preserve (tool->control, TRUE);
gimp_image_map_clear (image_map_tool->image_map);
gimp_tool_control_set_preserve (tool->control, FALSE);
gimp_image_map_tool_flush (image_map_tool->image_map,
image_map_tool);
}
}
}
static gboolean
gimp_image_map_tool_pick_color (GimpColorTool *color_tool,
gint x,
gint y,
GimpImageType *sample_type,
GimpRGB *color,
gint *color_index)
{
GimpImageMapTool *tool = GIMP_IMAGE_MAP_TOOL (color_tool);
gint off_x, off_y;
gimp_item_get_offset (GIMP_ITEM (tool->drawable), &off_x, &off_y);
*sample_type = gimp_drawable_type (tool->drawable);
return gimp_pickable_pick_color (GIMP_PICKABLE (tool->image_map),
x - off_x,
y - off_y,
color_tool->options->sample_average,
color_tool->options->average_radius,
color, color_index);
}
static void
gimp_image_map_tool_map (GimpImageMapTool *tool)
{
GimpDisplayShell *shell = gimp_display_get_shell (GIMP_TOOL (tool)->display);
GimpItem *item = GIMP_ITEM (tool->drawable);
gint x, y;
gint w, h;
gint off_x, off_y;
GeglRectangle visible;
GIMP_IMAGE_MAP_TOOL_GET_CLASS (tool)->map (tool);
gimp_display_shell_untransform_viewport (shell, &x, &y, &w, &h);
gimp_item_get_offset (item, &off_x, &off_y);
gimp_rectangle_intersect (x, y, w, h,
off_x,
off_y,
gimp_item_get_width (item),
gimp_item_get_height (item),
&visible.x,
&visible.y,
&visible.width,
&visible.height);
visible.x -= off_x;
visible.y -= off_y;
gimp_image_map_apply (tool->image_map, &visible);
}
static void
gimp_image_map_tool_dialog (GimpImageMapTool *tool)
{
GIMP_IMAGE_MAP_TOOL_GET_CLASS (tool)->dialog (tool);
}
static void
gimp_image_map_tool_reset (GimpImageMapTool *tool)
{
if (GIMP_IMAGE_MAP_TOOL_GET_CLASS (tool)->reset)
{
GIMP_IMAGE_MAP_TOOL_GET_CLASS (tool)->reset (tool);
}
else if (tool->config)
{
if (tool->default_config)
{
gimp_config_copy (GIMP_CONFIG (tool->default_config),
GIMP_CONFIG (tool->config),
0);
}
else
{
gimp_config_reset (GIMP_CONFIG (tool->config));
}
}
}
void
gimp_image_map_tool_create_map (GimpImageMapTool *tool)
{
Gimp *gimp;
gboolean use_gegl;
g_return_if_fail (GIMP_IS_IMAGE_MAP_TOOL (tool));
gimp = GIMP_TOOL (tool)->tool_info->gimp;
if (tool->image_map)
{
gimp_image_map_clear (tool->image_map);
g_object_unref (tool->image_map);
}
g_assert (tool->operation || tool->apply_func);
use_gegl = gimp_use_gegl (gimp) || ! tool->apply_func;
tool->image_map = gimp_image_map_new (tool->drawable,
GIMP_TOOL (tool)->tool_info->blurb,
use_gegl ? tool->operation : NULL,
tool->apply_func,
tool->apply_data);
g_signal_connect (tool->image_map, "flush",
G_CALLBACK (gimp_image_map_tool_flush),
tool);
}
static void
gimp_image_map_tool_flush (GimpImageMap *image_map,
GimpImageMapTool *image_map_tool)
{
GimpTool *tool = GIMP_TOOL (image_map_tool);
GimpImage *image = gimp_display_get_image (tool->display);
gimp_projection_flush_now (gimp_image_get_projection (image));
gimp_display_flush_now (tool->display);
}
static void
gimp_image_map_tool_response (GtkWidget *widget,
gint response_id,
GimpImageMapTool *image_map_tool)
{
GimpTool *tool = GIMP_TOOL (image_map_tool);
switch (response_id)
{
case RESPONSE_RESET:
gimp_image_map_tool_reset (image_map_tool);
gimp_image_map_tool_preview (image_map_tool);
break;
case GTK_RESPONSE_OK:
gimp_image_map_tool_dialog_hide (image_map_tool);
if (image_map_tool->image_map)
{
GimpImageMapOptions *options = GIMP_IMAGE_MAP_TOOL_GET_OPTIONS (tool);
gimp_tool_control_set_preserve (tool->control, TRUE);
if (! options->preview)
gimp_image_map_tool_map (image_map_tool);
gimp_image_map_commit (image_map_tool->image_map);
g_object_unref (image_map_tool->image_map);
image_map_tool->image_map = NULL;
gimp_tool_control_set_preserve (tool->control, FALSE);
gimp_image_flush (gimp_display_get_image (tool->display));
if (image_map_tool->config)
gimp_settings_box_add_current (GIMP_SETTINGS_BOX (image_map_tool->settings_box),
GIMP_GUI_CONFIG (tool->tool_info->gimp->config)->image_map_tool_max_recent);
}
tool->display = NULL;
tool->drawable = NULL;
break;
default:
gimp_tool_control (tool, GIMP_TOOL_ACTION_HALT, tool->display);
break;
}
}
static void
gimp_image_map_tool_dialog_hide (GimpImageMapTool *image_map_tool)
{
GtkWidget *dialog = image_map_tool->dialog;
if (GTK_IS_DIALOG (dialog))
{
gimp_dialog_factory_hide_dialog (dialog);
}
else if (GIMP_IS_OVERLAY_DIALOG (dialog))
{
g_object_ref (dialog);
gtk_container_remove (GTK_CONTAINER (gtk_widget_get_parent (dialog)),
dialog);
}
}
static void
gimp_image_map_tool_dialog_destroy (GimpImageMapTool *image_map_tool)
{
if (GTK_IS_DIALOG (image_map_tool->dialog) ||
gtk_widget_get_parent (image_map_tool->dialog))
gtk_widget_destroy (image_map_tool->dialog);
else
g_object_unref (image_map_tool->dialog);
image_map_tool->dialog = NULL;
image_map_tool->main_vbox = NULL;
image_map_tool->settings_box = NULL;
image_map_tool->label_group = NULL;
}
void
gimp_image_map_tool_preview (GimpImageMapTool *image_map_tool)
{
GimpTool *tool;
GimpImageMapOptions *options;
g_return_if_fail (GIMP_IS_IMAGE_MAP_TOOL (image_map_tool));
tool = GIMP_TOOL (image_map_tool);
options = GIMP_IMAGE_MAP_TOOL_GET_OPTIONS (tool);
if (image_map_tool->image_map && options->preview)
{
gimp_tool_control_set_preserve (tool->control, TRUE);
gimp_image_map_tool_map (image_map_tool);
gimp_tool_control_set_preserve (tool->control, FALSE);
}
}
static void
gimp_image_map_tool_gegl_notify (GObject *config,
const GParamSpec *pspec,
GimpImageMapTool *im_tool)
{
if (im_tool->image_map)
{
gimp_tool_control_set_preserve (GIMP_TOOL (im_tool)->control, TRUE);
gimp_image_map_tool_create_map (im_tool);
gimp_tool_control_set_preserve (GIMP_TOOL (im_tool)->control, FALSE);
gimp_image_map_tool_preview (im_tool);
}
}
void
gimp_image_map_tool_edit_as (GimpImageMapTool *im_tool,
const gchar *new_tool_id,
GimpConfig *config)
{
GimpDisplay *display;
GimpContext *user_context;
GimpToolInfo *tool_info;
GimpTool *new_tool;
g_return_if_fail (GIMP_IS_IMAGE_MAP_TOOL (im_tool));
g_return_if_fail (new_tool_id);
g_return_if_fail (GIMP_IS_CONFIG (config));
display = GIMP_TOOL (im_tool)->display;
user_context = gimp_get_user_context (display->gimp);
tool_info = (GimpToolInfo *)
gimp_container_get_child_by_name (display->gimp->tool_info_list,
new_tool_id);
gimp_context_set_tool (user_context, tool_info);
tool_manager_initialize_active (display->gimp, display);
new_tool = tool_manager_get_active (display->gimp);
GIMP_IMAGE_MAP_TOOL (new_tool)->default_config = g_object_ref (config);
gimp_image_map_tool_reset (GIMP_IMAGE_MAP_TOOL (new_tool));
}
GtkWidget *
gimp_image_map_tool_dialog_get_vbox (GimpImageMapTool *tool)
{
g_return_val_if_fail (GIMP_IS_IMAGE_MAP_TOOL (tool), NULL);
return tool->main_vbox;
}
GtkSizeGroup *
gimp_image_map_tool_dialog_get_label_group (GimpImageMapTool *tool)
{
g_return_val_if_fail (GIMP_IS_IMAGE_MAP_TOOL (tool), NULL);
return tool->label_group;
}
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