8934d43975
- Make the various virtual methods of GimpPaintCore use a list of drawables as argument instead of a single drawable. - gimp_brush_core_eval_transform_dynamics() can work with an image as argument rather than a drawable as it doesn't actually depends on specific drawable data. - New function gimp_paint_tool_enable_multi_paint() to be used in init() method of paint tools to announce that this tool can work with multiple layers selected. - Use gimp_paint_tool_enable_multi_paint() in the GimpSourceTool base class only for now. This is a first step for multi-layer drawing, but we don't want it to be possible in just any random cases, which is why I add a special function to advertize this capability. We will use it for special-casing the clone (as well as heal and perspective tools most likely) tool to work on several layers at once. At this step, it is still very bugged and not really working properly. In particular, since we don't process the drawable offset early anymore (because it makes no sense when we pass a list of drawables with different offsets), I suspect that all the offset-related code will be very broken.
256 lines
10 KiB
C
256 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 <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 "libgimpbase/gimpbase.h"
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#include "paint-types.h"
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#include "gegl/gimp-gegl-apply-operation.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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GList *drawables,
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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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GList *drawables,
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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, 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 == 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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if (! op)
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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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}
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else
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{
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gimp_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 == 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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}
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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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