mirror of https://github.com/GNOME/gimp.git
133 lines
4.9 KiB
C
133 lines
4.9 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 <gdk-pixbuf/gdk-pixbuf.h>
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#include <gegl.h>
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#include "paint-types.h"
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#include "gegl/gimp-gegl-utils.h"
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#include "core/gimp.h"
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#include "core/gimp-palettes.h"
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#include "core/gimpdrawable.h"
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#include "core/gimpdynamics.h"
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#include "core/gimpimage.h"
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#include "core/gimppickable.h"
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#include "core/gimpsymmetry.h"
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#include "gimperaser.h"
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#include "gimperaseroptions.h"
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#include "gimp-intl.h"
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static gboolean gimp_eraser_get_color_history_color (GimpPaintbrush *paintbrush,
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GimpDrawable *drawable,
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GimpPaintOptions *paint_options,
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GeglColor **color);
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static void gimp_eraser_get_paint_params (GimpPaintbrush *paintbrush,
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GimpDrawable *drawable,
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GimpPaintOptions *paint_options,
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GimpSymmetry *sym,
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gdouble grad_point,
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GimpLayerMode *paint_mode,
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GimpPaintApplicationMode *paint_appl_mode,
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const GimpTempBuf **paint_pixmap,
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GimpRGB *paint_color);
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G_DEFINE_TYPE (GimpEraser, gimp_eraser, GIMP_TYPE_PAINTBRUSH)
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void
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gimp_eraser_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_ERASER,
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GIMP_TYPE_ERASER_OPTIONS,
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"gimp-eraser",
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_("Eraser"),
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"gimp-tool-eraser");
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}
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static void
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gimp_eraser_class_init (GimpEraserClass *klass)
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{
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GimpPaintbrushClass *paintbrush_class = GIMP_PAINTBRUSH_CLASS (klass);
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paintbrush_class->get_color_history_color = gimp_eraser_get_color_history_color;
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paintbrush_class->get_paint_params = gimp_eraser_get_paint_params;
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}
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static void
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gimp_eraser_init (GimpEraser *eraser)
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{
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}
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static gboolean
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gimp_eraser_get_color_history_color (GimpPaintbrush *paintbrush,
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GimpDrawable *drawable,
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GimpPaintOptions *paint_options,
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GeglColor **color)
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{
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/* Erasing on a drawable without alpha is equivalent to
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* drawing with background color. So let's save history.
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*/
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if (! gimp_drawable_has_alpha (drawable))
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{
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GimpContext *context = GIMP_CONTEXT (paint_options);
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*color = gimp_context_get_background (context);
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return TRUE;
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}
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return FALSE;
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}
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static void
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gimp_eraser_get_paint_params (GimpPaintbrush *paintbrush,
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GimpDrawable *drawable,
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GimpPaintOptions *paint_options,
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GimpSymmetry *sym,
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gdouble grad_point,
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GimpLayerMode *paint_mode,
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GimpPaintApplicationMode *paint_appl_mode,
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const GimpTempBuf **paint_pixmap,
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GimpRGB *paint_color)
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{
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GimpEraserOptions *options = GIMP_ERASER_OPTIONS (paint_options);
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GimpContext *context = GIMP_CONTEXT (paint_options);
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GeglColor *color;
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color = gimp_context_get_background (context);
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gegl_color_get_rgba_with_space (color, &paint_color->r, &paint_color->g, &paint_color->b, &paint_color->a, NULL);
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gimp_pickable_srgb_to_image_color (GIMP_PICKABLE (drawable),
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paint_color, paint_color);
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if (options->anti_erase)
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*paint_mode = GIMP_LAYER_MODE_ANTI_ERASE;
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else if (gimp_drawable_has_alpha (drawable))
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*paint_mode = GIMP_LAYER_MODE_ERASE;
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else
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*paint_mode = GIMP_LAYER_MODE_NORMAL_LEGACY;
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}
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