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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* 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/>.
*/
#ifndef __GIMP_BRUSH_CORE_H__
#define __GIMP_BRUSH_CORE_H__
#include "gimppaintcore.h"
#define BRUSH_CORE_SUBSAMPLE 4
#define BRUSH_CORE_SOLID_SUBSAMPLE 2
#define BRUSH_CORE_JITTER_LUTSIZE 360
#define GIMP_TYPE_BRUSH_CORE (gimp_brush_core_get_type ())
#define GIMP_BRUSH_CORE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_BRUSH_CORE, GimpBrushCore))
#define GIMP_BRUSH_CORE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_BRUSH_CORE, GimpBrushCoreClass))
#define GIMP_IS_BRUSH_CORE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_BRUSH_CORE))
#define GIMP_IS_BRUSH_CORE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_BRUSH_CORE))
#define GIMP_BRUSH_CORE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_BRUSH_CORE, GimpBrushCoreClass))
typedef struct _GimpBrushCoreClass GimpBrushCoreClass;
struct _GimpBrushCore
{
GimpPaintCore parent_instance;
GimpBrush *main_brush;
GimpBrush *brush;
GimpDynamics *dynamics;
gdouble spacing;
gdouble scale;
gdouble aspect_ratio;
gdouble angle;
gboolean reflect;
gdouble hardness;
gdouble symmetry_angle;
gboolean symmetry_reflect;
/* brush buffers */
GimpTempBuf *pressure_brush;
GimpTempBuf *solid_brushes[BRUSH_CORE_SOLID_SUBSAMPLE][BRUSH_CORE_SOLID_SUBSAMPLE];
const GimpTempBuf *last_solid_brush_mask;
gboolean solid_cache_invalid;
const GimpTempBuf *transform_brush;
const GimpTempBuf *transform_pixmap;
GimpTempBuf *subsample_brushes[BRUSH_CORE_SUBSAMPLE + 1][BRUSH_CORE_SUBSAMPLE + 1];
const GimpTempBuf *last_subsample_brush_mask;
gboolean subsample_cache_invalid;
gdouble jitter;
gdouble jitter_lut_x[BRUSH_CORE_JITTER_LUTSIZE];
gdouble jitter_lut_y[BRUSH_CORE_JITTER_LUTSIZE];
GRand *rand;
};
struct _GimpBrushCoreClass
{
GimpPaintCoreClass parent_class;
/* Set for tools that don't mind if the brush changes while painting */
gboolean handles_changing_brush;
/* Set for tools that don't mind if the brush scales while painting */
gboolean handles_transforming_brush;
/* Set for tools that don't mind if the brush scales mid stroke */
gboolean handles_dynamic_transforming_brush;
void (* set_brush) (GimpBrushCore *core,
GimpBrush *brush);
void (* set_dynamics) (GimpBrushCore *core,
GimpDynamics *brush);
};
GType gimp_brush_core_get_type (void) G_GNUC_CONST;
void gimp_brush_core_set_brush (GimpBrushCore *core,
GimpBrush *brush);
void gimp_brush_core_set_dynamics (GimpBrushCore *core,
GimpDynamics *dynamics);
void gimp_brush_core_paste_canvas (GimpBrushCore *core,
GimpDrawable *drawable,
const GimpCoords *coords,
gdouble brush_opacity,
gdouble image_opacity,
GimpLayerMode paint_mode,
GimpBrushApplicationMode brush_hardness,
gdouble dynamic_hardness,
GimpPaintApplicationMode mode);
void gimp_brush_core_replace_canvas (GimpBrushCore *core,
GimpDrawable *drawable,
const GimpCoords *coords,
gdouble brush_opacity,
gdouble image_opacity,
GimpBrushApplicationMode brush_hardness,
gdouble dynamic_hardness,
GimpPaintApplicationMode mode);
void gimp_brush_core_color_area_with_pixmap
(GimpBrushCore *core,
GimpDrawable *drawable,
const GimpCoords *coords,
GeglBuffer *area,
gint area_x,
gint area_y,
gboolean apply_mask);
const GimpTempBuf * gimp_brush_core_get_brush_mask
(GimpBrushCore *core,
const GimpCoords *coords,
GimpBrushApplicationMode brush_hardness,
gdouble dynamic_hardness);
const GimpTempBuf * gimp_brush_core_get_brush_pixmap
(GimpBrushCore *core);
void gimp_brush_core_eval_transform_dynamics
(GimpBrushCore *core,
GimpImage *image,
GimpPaintOptions *paint_options,
const GimpCoords *coords);
void gimp_brush_core_eval_transform_symmetry
(GimpBrushCore *core,
GimpSymmetry *symmetry,
gint stroke);
#endif /* __GIMP_BRUSH_CORE_H__ */
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