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gimp/app/paint/gimpsourceoptions.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 <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gdk-pixbuf/gdk-pixbuf.h>
#include <gegl.h>
#include "libgimpbase/gimpbase.h"
#include "libgimpconfig/gimpconfig.h"
#include "paint-types.h"
#include "core/gimp.h"
#include "core/gimpcontainer.h"
#include "core/gimpimage.h"
#include "core/gimpimage-new.h"
#include "core/gimpitem.h"
#include "core/gimppickable.h"
#include "gimpsourceoptions.h"
#include "gimp-intl.h"
enum
{
PROP_0,
PROP_SRC_DRAWABLES,
PROP_SRC_X,
PROP_SRC_Y,
PROP_ALIGN_MODE,
PROP_SAMPLE_MERGED
};
static void gimp_source_options_finalize (GObject *object);
static void gimp_source_options_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec);
static void gimp_source_options_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec);
static void
gimp_source_options_set_src_drawables (GimpSourceOptions *options,
GList *drawables);
static void
gimp_source_options_src_drawable_removed (GimpDrawable *drawable,
GimpSourceOptions *options);
static void gimp_source_options_make_pickable (GimpSourceOptions *options);
G_DEFINE_TYPE (GimpSourceOptions, gimp_source_options, GIMP_TYPE_PAINT_OPTIONS)
#define parent_class gimp_source_options_parent_class
static void
gimp_source_options_class_init (GimpSourceOptionsClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->finalize = gimp_source_options_finalize;
object_class->set_property = gimp_source_options_set_property;
object_class->get_property = gimp_source_options_get_property;
g_object_class_install_property (object_class, PROP_SRC_DRAWABLES,
g_param_spec_pointer ("src-drawables",
NULL, NULL,
GIMP_PARAM_READWRITE));
g_object_class_install_property (object_class, PROP_SRC_X,
g_param_spec_int ("src-x",
NULL, NULL,
G_MININT, G_MAXINT, 0,
GIMP_PARAM_READWRITE));
g_object_class_install_property (object_class, PROP_SRC_Y,
g_param_spec_int ("src-y",
NULL, NULL,
G_MININT, G_MAXINT, 0,
GIMP_PARAM_READWRITE));
GIMP_CONFIG_PROP_ENUM (object_class, PROP_ALIGN_MODE,
"align-mode",
_("Alignment"),
NULL,
GIMP_TYPE_SOURCE_ALIGN_MODE,
GIMP_SOURCE_ALIGN_NO,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_PROP_BOOLEAN (object_class, PROP_SAMPLE_MERGED,
"sample-merged",
_("Sample merged"),
NULL,
FALSE,
GIMP_PARAM_STATIC_STRINGS);
}
static void
gimp_source_options_init (GimpSourceOptions *options)
{
options->src_drawables = NULL;
}
static void
gimp_source_options_finalize (GObject *object)
{
GimpSourceOptions *options = GIMP_SOURCE_OPTIONS (object);
gimp_source_options_set_src_drawables (options, NULL);
g_clear_object (&options->src_image);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gimp_source_options_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
GimpSourceOptions *options = GIMP_SOURCE_OPTIONS (object);
switch (property_id)
{
case PROP_SRC_DRAWABLES:
gimp_source_options_set_src_drawables (options,
g_value_get_pointer (value));
break;
case PROP_SRC_X:
options->src_x = g_value_get_int (value);
break;
case PROP_SRC_Y:
options->src_y = g_value_get_int (value);
break;
case PROP_ALIGN_MODE:
options->align_mode = g_value_get_enum (value);
break;
case PROP_SAMPLE_MERGED:
options->sample_merged = g_value_get_boolean (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gimp_source_options_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
GimpSourceOptions *options = GIMP_SOURCE_OPTIONS (object);
switch (property_id)
{
case PROP_SRC_DRAWABLES:
g_value_set_pointer (value, options->src_drawables);
break;
case PROP_SRC_X:
g_value_set_int (value, options->src_x);
break;
case PROP_SRC_Y:
g_value_set_int (value, options->src_y);
break;
case PROP_ALIGN_MODE:
g_value_set_enum (value, options->align_mode);
break;
case PROP_SAMPLE_MERGED:
g_value_set_boolean (value, options->sample_merged);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gimp_source_options_set_src_drawables (GimpSourceOptions *options,
GList *drawables)
{
GimpImage *image = NULL;
GList *iter;
if (g_list_length (options->src_drawables) == g_list_length (drawables))
{
GList *iter2;
for (iter = options->src_drawables, iter2 = drawables;
iter; iter = iter->next, iter2 = iter2->next)
{
if (iter->data != iter2->data)
break;
}
if (iter == NULL)
return;
}
for (GList *iter = drawables; iter; iter = iter->next)
{
/* Make sure all drawables are from the same image. */
if (image == NULL)
image = gimp_item_get_image (GIMP_ITEM (iter->data));
else
g_return_if_fail (image == gimp_item_get_image (GIMP_ITEM (iter->data)));
}
if (options->src_drawables)
{
for (GList *iter = options->src_drawables; iter; iter = iter->next)
g_signal_handlers_disconnect_by_func (iter->data,
gimp_source_options_src_drawable_removed,
options);
g_list_free (options->src_drawables);
}
options->src_drawables = g_list_copy (drawables);
if (options->src_drawables)
{
for (GList *iter = options->src_drawables; iter; iter = iter->next)
g_signal_connect (iter->data, "removed",
G_CALLBACK (gimp_source_options_src_drawable_removed),
options);
}
gimp_source_options_make_pickable (options);
g_object_notify (G_OBJECT (options), "src-drawables");
}
static void
gimp_source_options_src_drawable_removed (GimpDrawable *drawable,
GimpSourceOptions *options)
{
options->src_drawables = g_list_remove (options->src_drawables, drawable);
g_signal_handlers_disconnect_by_func (drawable,
gimp_source_options_src_drawable_removed,
options);
gimp_source_options_make_pickable (options);
g_object_notify (G_OBJECT (options), "src-drawables");
}
static void
gimp_source_options_make_pickable (GimpSourceOptions *options)
{
g_clear_object (&options->src_image);
options->src_pickable = NULL;
if (options->src_drawables)
{
GimpImage *image;
image = gimp_item_get_image (GIMP_ITEM (options->src_drawables->data));
if (g_list_length (options->src_drawables) > 1)
{
/* A composited projection of src_drawables as if they were on
* their own in the image. Some kind of sample_merged limited
* to these drawables.
*/
options->src_image = gimp_image_new_from_drawables (image->gimp, options->src_drawables,
FALSE, FALSE);
gimp_container_remove (image->gimp->images, GIMP_OBJECT (options->src_image));
options->src_pickable = GIMP_PICKABLE (options->src_image);
gimp_pickable_flush (options->src_pickable);
}
else
{
options->src_pickable = GIMP_PICKABLE (options->src_drawables->data);
}
}
}
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