PIKApp/app/operations/pikaoperationfillsource.c

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2023-09-26 00:35:21 +02:00
/* PIKA - Photo and Image Kooker Application
* a rebranding of The GNU Image Manipulation Program (created with heckimp)
* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
*
* Original copyright, applying to most contents (license remains unchanged):
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* pikaoperationfillsource.c
* Copyright (C) 2019 Ell
*
* 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 <cairo.h>
#include <gegl-plugin.h>
#include <gdk-pixbuf/gdk-pixbuf.h>
#include "operations-types.h"
#include "core/pikadrawable.h"
#include "core/pikafilloptions.h"
#include "pikaoperationfillsource.h"
enum
{
PROP_0,
PROP_OPTIONS,
PROP_DRAWABLE,
PROP_PATTERN_OFFSET_X,
PROP_PATTERN_OFFSET_Y,
};
static void pika_operation_fill_source_dispose (GObject *object);
static void pika_operation_fill_source_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec);
static void pika_operation_fill_source_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec);
static GeglRectangle pika_operation_fill_source_get_bounding_box (GeglOperation *operation);
static void pika_operation_fill_source_prepare (GeglOperation *operation);
static gboolean pika_operation_fill_source_process (GeglOperation *operation,
GeglOperationContext *context,
const gchar *output_pad,
const GeglRectangle *result,
gint level);
G_DEFINE_TYPE (PikaOperationFillSource, pika_operation_fill_source,
GEGL_TYPE_OPERATION_SOURCE)
#define parent_class pika_operation_fill_source_parent_class
static void
pika_operation_fill_source_class_init (PikaOperationFillSourceClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GeglOperationClass *operation_class = GEGL_OPERATION_CLASS (klass);
object_class->dispose = pika_operation_fill_source_dispose;
object_class->set_property = pika_operation_fill_source_set_property;
object_class->get_property = pika_operation_fill_source_get_property;
operation_class->get_bounding_box = pika_operation_fill_source_get_bounding_box;
operation_class->prepare = pika_operation_fill_source_prepare;
operation_class->process = pika_operation_fill_source_process;
operation_class->threaded = FALSE;
operation_class->cache_policy = GEGL_CACHE_POLICY_NEVER;
gegl_operation_class_set_keys (operation_class,
"name", "pika:fill-source",
"categories", "pika",
"description", "PIKA Fill Source operation",
NULL);
g_object_class_install_property (object_class, PROP_OPTIONS,
g_param_spec_object ("options",
"Options",
"Fill options",
PIKA_TYPE_FILL_OPTIONS,
G_PARAM_READWRITE));
g_object_class_install_property (object_class, PROP_DRAWABLE,
g_param_spec_object ("drawable",
"Drawable",
"Fill drawable",
PIKA_TYPE_DRAWABLE,
G_PARAM_READWRITE));
g_object_class_install_property (object_class, PROP_PATTERN_OFFSET_X,
g_param_spec_int ("pattern-offset-x",
"Pattern X-offset",
"Pattern X-offset",
G_MININT, G_MAXINT, 0,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT));
g_object_class_install_property (object_class, PROP_PATTERN_OFFSET_Y,
g_param_spec_int ("pattern-offset-y",
"Pattern Y-offset",
"Pattern Y-offset",
G_MININT, G_MAXINT, 0,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT));
}
static void
pika_operation_fill_source_init (PikaOperationFillSource *self)
{
}
static void
pika_operation_fill_source_dispose (GObject *object)
{
PikaOperationFillSource *fill_source = PIKA_OPERATION_FILL_SOURCE (object);
g_clear_object (&fill_source->options);
g_clear_object (&fill_source->drawable);
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static void
pika_operation_fill_source_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
PikaOperationFillSource *fill_source = PIKA_OPERATION_FILL_SOURCE (object);
switch (property_id)
{
case PROP_OPTIONS:
g_value_set_object (value, fill_source->options);
break;
case PROP_DRAWABLE:
g_value_set_object (value, fill_source->drawable);
break;
case PROP_PATTERN_OFFSET_X:
g_value_set_int (value, fill_source->pattern_offset_x);
break;
case PROP_PATTERN_OFFSET_Y:
g_value_set_int (value, fill_source->pattern_offset_y);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
pika_operation_fill_source_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
PikaOperationFillSource *fill_source = PIKA_OPERATION_FILL_SOURCE (object);
switch (property_id)
{
case PROP_OPTIONS:
g_set_object (&fill_source->options, g_value_get_object (value));
break;
case PROP_DRAWABLE:
g_set_object (&fill_source->drawable, g_value_get_object (value));
break;
case PROP_PATTERN_OFFSET_X:
fill_source->pattern_offset_x = g_value_get_int (value);
break;
case PROP_PATTERN_OFFSET_Y:
fill_source->pattern_offset_y = g_value_get_int (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static GeglRectangle
pika_operation_fill_source_get_bounding_box (GeglOperation *operation)
{
return gegl_rectangle_infinite_plane ();
}
static void
pika_operation_fill_source_prepare (GeglOperation *operation)
{
PikaOperationFillSource *fill_source = PIKA_OPERATION_FILL_SOURCE (operation);
const Babl *format = NULL;
if (fill_source->options && fill_source->drawable)
{
format = pika_fill_options_get_format (fill_source->options,
fill_source->drawable);
}
gegl_operation_set_format (operation, "output", format);
}
static gboolean
pika_operation_fill_source_process (GeglOperation *operation,
GeglOperationContext *context,
const gchar *output_pad,
const GeglRectangle *result,
gint level)
{
PikaOperationFillSource *fill_source = PIKA_OPERATION_FILL_SOURCE (operation);
if (fill_source->options && fill_source->drawable)
{
GeglBuffer *buffer;
GeglRectangle rect;
gegl_rectangle_align_to_buffer (
&rect, result,
pika_drawable_get_buffer (fill_source->drawable),
GEGL_RECTANGLE_ALIGNMENT_SUPERSET);
buffer = pika_fill_options_create_buffer (fill_source->options,
fill_source->drawable,
&rect,
fill_source->pattern_offset_x,
fill_source->pattern_offset_y);
gegl_operation_context_take_object (context, "output", G_OBJECT (buffer));
}
return TRUE;
}