mirror of https://github.com/GNOME/gimp.git
264 lines
10 KiB
C
264 lines
10 KiB
C
/* GIMP - The GNU Image Manipulation Program
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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 <http://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 "libgimpbase/gimpbase.h"
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#include "paint-types.h"
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#include "gegl/gimp-gegl-loops.h"
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#include "core/gimp.h"
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#include "core/gimpdrawable.h"
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#include "core/gimpdynamics.h"
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#include "core/gimperror.h"
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#include "core/gimpimage.h"
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#include "core/gimppattern.h"
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#include "core/gimppickable.h"
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#include "core/gimpsymmetry.h"
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#include "gimpclone.h"
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#include "gimpcloneoptions.h"
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#include "gimp-intl.h"
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static gboolean gimp_clone_start (GimpPaintCore *paint_core,
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GimpDrawable *drawable,
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GimpPaintOptions *paint_options,
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const GimpCoords *coords,
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GError **error);
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static void gimp_clone_motion (GimpSourceCore *source_core,
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GimpDrawable *drawable,
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GimpPaintOptions *paint_options,
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const GimpCoords *coords,
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GeglNode *op,
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gdouble opacity,
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GimpPickable *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 gimp_clone_use_source (GimpSourceCore *source_core,
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GimpSourceOptions *options);
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G_DEFINE_TYPE (GimpClone, gimp_clone, GIMP_TYPE_SOURCE_CORE)
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#define parent_class gimp_clone_parent_class
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void
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gimp_clone_register (Gimp *gimp,
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GimpPaintRegisterCallback callback)
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{
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(* callback) (gimp,
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GIMP_TYPE_CLONE,
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GIMP_TYPE_CLONE_OPTIONS,
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"gimp-clone",
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_("Clone"),
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"gimp-tool-clone");
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}
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static void
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gimp_clone_class_init (GimpCloneClass *klass)
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{
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GimpPaintCoreClass *paint_core_class = GIMP_PAINT_CORE_CLASS (klass);
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GimpSourceCoreClass *source_core_class = GIMP_SOURCE_CORE_CLASS (klass);
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paint_core_class->start = gimp_clone_start;
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source_core_class->use_source = gimp_clone_use_source;
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source_core_class->motion = gimp_clone_motion;
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}
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static void
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gimp_clone_init (GimpClone *clone)
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{
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}
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static gboolean
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gimp_clone_start (GimpPaintCore *paint_core,
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GimpDrawable *drawable,
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GimpPaintOptions *paint_options,
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const GimpCoords *coords,
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GError **error)
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{
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GimpCloneOptions *options = GIMP_CLONE_OPTIONS (paint_options);
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if (! GIMP_PAINT_CORE_CLASS (parent_class)->start (paint_core, drawable,
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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 == GIMP_CLONE_PATTERN)
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{
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if (! gimp_context_get_pattern (GIMP_CONTEXT (options)))
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{
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g_set_error_literal (error, GIMP_ERROR, GIMP_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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gimp_clone_motion (GimpSourceCore *source_core,
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GimpDrawable *drawable,
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GimpPaintOptions *paint_options,
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const GimpCoords *coords,
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GeglNode *op,
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gdouble opacity,
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GimpPickable *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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GimpPaintCore *paint_core = GIMP_PAINT_CORE (source_core);
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GimpBrushCore *brush_core = GIMP_BRUSH_CORE (source_core);
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GimpCloneOptions *options = GIMP_CLONE_OPTIONS (paint_options);
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GimpSourceOptions *source_options = GIMP_SOURCE_OPTIONS (paint_options);
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GimpContext *context = GIMP_CONTEXT (paint_options);
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GimpDynamics *dynamics = brush_core->dynamics;
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GimpImage *image = gimp_item_get_image (GIMP_ITEM (drawable));
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gdouble fade_point;
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gdouble force;
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if (gimp_source_core_use_source (source_core, source_options))
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{
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gimp_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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if (op)
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{
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GeglNode *graph, *source, *target;
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graph = gegl_node_new ();
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source = gegl_node_new_child (graph,
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"operation", "gegl:buffer-source",
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"buffer", paint_buffer,
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NULL);
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gegl_node_add_child (graph, op);
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target = gegl_node_new_child (graph,
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"operation", "gegl:write-buffer",
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"buffer", paint_buffer,
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NULL);
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gegl_node_link_many (source, op, target, NULL);
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gegl_node_process (target);
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g_object_unref (graph);
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}
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}
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else if (options->clone_type == GIMP_CLONE_PATTERN)
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{
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GimpPattern *pattern = gimp_context_get_pattern (context);
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GeglBuffer *src_buffer = gimp_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 = gimp_paint_options_get_fade (paint_options, image,
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paint_core->pixel_dist);
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if (gimp_dynamics_is_output_enabled (dynamics, GIMP_DYNAMICS_OUTPUT_FORCE))
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force = gimp_dynamics_get_linear_value (dynamics,
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GIMP_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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gimp_brush_core_paste_canvas (GIMP_BRUSH_CORE (paint_core), drawable,
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coords,
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MIN (opacity, GIMP_OPACITY_OPAQUE),
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gimp_context_get_opacity (context),
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gimp_context_get_paint_mode (context),
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gimp_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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GIMP_SOURCE_ALIGN_FIXED ?
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GIMP_PAINT_INCREMENTAL : GIMP_PAINT_CONSTANT,
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NULL);
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}
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static gboolean
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gimp_clone_use_source (GimpSourceCore *source_core,
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GimpSourceOptions *options)
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{
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return GIMP_CLONE_OPTIONS (options)->clone_type == GIMP_CLONE_IMAGE;
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}
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