261 lines
10 KiB
C
261 lines
10 KiB
C
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/* PIKA - Photo and Image Kooker Application
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* a rebranding of The GNU Image Manipulation Program (created with heckimp)
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* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
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*
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* Original copyright, applying to most contents (license remains unchanged):
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <stdlib.h>
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#include <string.h>
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#include <gdk-pixbuf/gdk-pixbuf.h>
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#include <gegl.h>
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#include "libpikabase/pikabase.h"
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#include "paint-types.h"
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#include "gegl/pika-gegl-apply-operation.h"
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#include "gegl/pika-gegl-loops.h"
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#include "core/pika.h"
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#include "core/pikadrawable.h"
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#include "core/pikadynamics.h"
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#include "core/pikaerror.h"
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#include "core/pikaimage.h"
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#include "core/pikapattern.h"
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#include "core/pikapickable.h"
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#include "core/pikasymmetry.h"
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#include "pikaclone.h"
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#include "pikacloneoptions.h"
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#include "pika-intl.h"
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static gboolean pika_clone_start (PikaPaintCore *paint_core,
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GList *drawables,
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PikaPaintOptions *paint_options,
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const PikaCoords *coords,
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GError **error);
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static void pika_clone_motion (PikaSourceCore *source_core,
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PikaDrawable *drawable,
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PikaPaintOptions *paint_options,
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const PikaCoords *coords,
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GeglNode *op,
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gdouble opacity,
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PikaPickable *src_pickable,
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GeglBuffer *src_buffer,
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GeglRectangle *src_rect,
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gint src_offset_x,
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gint src_offset_y,
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GeglBuffer *paint_buffer,
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gint paint_buffer_x,
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gint paint_buffer_y,
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gint paint_area_offset_x,
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gint paint_area_offset_y,
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gint paint_area_width,
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gint paint_area_height);
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static gboolean pika_clone_use_source (PikaSourceCore *source_core,
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PikaSourceOptions *options);
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G_DEFINE_TYPE (PikaClone, pika_clone, PIKA_TYPE_SOURCE_CORE)
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#define parent_class pika_clone_parent_class
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void
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pika_clone_register (Pika *pika,
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PikaPaintRegisterCallback callback)
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{
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(* callback) (pika,
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PIKA_TYPE_CLONE,
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PIKA_TYPE_CLONE_OPTIONS,
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"pika-clone",
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_("Clone"),
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"pika-tool-clone");
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}
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static void
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pika_clone_class_init (PikaCloneClass *klass)
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{
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PikaPaintCoreClass *paint_core_class = PIKA_PAINT_CORE_CLASS (klass);
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PikaSourceCoreClass *source_core_class = PIKA_SOURCE_CORE_CLASS (klass);
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paint_core_class->start = pika_clone_start;
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source_core_class->use_source = pika_clone_use_source;
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source_core_class->motion = pika_clone_motion;
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}
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static void
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pika_clone_init (PikaClone *clone)
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{
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}
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static gboolean
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pika_clone_start (PikaPaintCore *paint_core,
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GList *drawables,
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PikaPaintOptions *paint_options,
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const PikaCoords *coords,
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GError **error)
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{
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PikaCloneOptions *options = PIKA_CLONE_OPTIONS (paint_options);
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if (! PIKA_PAINT_CORE_CLASS (parent_class)->start (paint_core, drawables,
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paint_options, coords,
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error))
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{
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return FALSE;
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}
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if (options->clone_type == PIKA_CLONE_PATTERN)
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{
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if (! pika_context_get_pattern (PIKA_CONTEXT (options)))
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{
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g_set_error_literal (error, PIKA_ERROR, PIKA_FAILED,
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_("No patterns available for use with this tool."));
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return FALSE;
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}
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}
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return TRUE;
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}
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static void
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pika_clone_motion (PikaSourceCore *source_core,
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PikaDrawable *drawable,
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PikaPaintOptions *paint_options,
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const PikaCoords *coords,
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GeglNode *op,
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gdouble opacity,
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PikaPickable *src_pickable,
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GeglBuffer *src_buffer,
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GeglRectangle *src_rect,
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gint src_offset_x,
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gint src_offset_y,
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GeglBuffer *paint_buffer,
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gint paint_buffer_x,
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gint paint_buffer_y,
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gint paint_area_offset_x,
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gint paint_area_offset_y,
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gint paint_area_width,
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gint paint_area_height)
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{
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PikaPaintCore *paint_core = PIKA_PAINT_CORE (source_core);
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PikaBrushCore *brush_core = PIKA_BRUSH_CORE (source_core);
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PikaCloneOptions *options = PIKA_CLONE_OPTIONS (paint_options);
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PikaSourceOptions *source_options = PIKA_SOURCE_OPTIONS (paint_options);
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PikaContext *context = PIKA_CONTEXT (paint_options);
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PikaDynamics *dynamics = brush_core->dynamics;
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PikaImage *image = pika_item_get_image (PIKA_ITEM (drawable));
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gdouble fade_point;
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gdouble force;
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if (pika_source_core_use_source (source_core, source_options))
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{
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if (! op)
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{
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pika_gegl_buffer_copy (src_buffer,
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GEGL_RECTANGLE (src_rect->x,
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src_rect->y,
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paint_area_width,
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paint_area_height),
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GEGL_ABYSS_NONE,
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paint_buffer,
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GEGL_RECTANGLE (paint_area_offset_x,
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paint_area_offset_y,
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0, 0));
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}
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else
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{
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pika_gegl_apply_operation (src_buffer, NULL, NULL, op,
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paint_buffer,
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GEGL_RECTANGLE (paint_area_offset_x,
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paint_area_offset_y,
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paint_area_width,
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paint_area_height),
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FALSE);
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}
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}
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else if (options->clone_type == PIKA_CLONE_PATTERN)
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{
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PikaPattern *pattern = pika_context_get_pattern (context);
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GeglBuffer *src_buffer = pika_pattern_create_buffer (pattern);
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src_offset_x += gegl_buffer_get_width (src_buffer) / 2;
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src_offset_y += gegl_buffer_get_height (src_buffer) / 2;
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gegl_buffer_set_pattern (paint_buffer,
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GEGL_RECTANGLE (paint_area_offset_x,
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paint_area_offset_y,
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paint_area_width,
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paint_area_height),
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src_buffer,
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- paint_buffer_x - src_offset_x,
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- paint_buffer_y - src_offset_y);
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g_object_unref (src_buffer);
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}
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else
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{
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g_return_if_reached ();
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}
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fade_point = pika_paint_options_get_fade (paint_options, image,
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paint_core->pixel_dist);
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if (pika_dynamics_is_output_enabled (dynamics, PIKA_DYNAMICS_OUTPUT_FORCE))
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force = pika_dynamics_get_linear_value (dynamics,
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PIKA_DYNAMICS_OUTPUT_FORCE,
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coords,
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paint_options,
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fade_point);
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else
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force = paint_options->brush_force;
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pika_brush_core_paste_canvas (PIKA_BRUSH_CORE (paint_core), drawable,
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coords,
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MIN (opacity, PIKA_OPACITY_OPAQUE),
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pika_context_get_opacity (context),
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pika_context_get_paint_mode (context),
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pika_paint_options_get_brush_mode (paint_options),
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force,
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/* In fixed mode, paint incremental so the
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* individual brushes are properly applied
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* on top of each other.
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* Otherwise the stuff we paint is seamless
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* and we don't need intermediate masking.
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*/
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source_options->align_mode ==
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PIKA_SOURCE_ALIGN_FIXED ?
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PIKA_PAINT_INCREMENTAL : PIKA_PAINT_CONSTANT);
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}
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static gboolean
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pika_clone_use_source (PikaSourceCore *source_core,
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PikaSourceOptions *options)
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{
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return PIKA_CLONE_OPTIONS (options)->clone_type == PIKA_CLONE_IMAGE;
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}
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