a0b73420ec
Add support for reflecting brushes as part of their transformation. The reflection is performed as the last step of the transformation, across the vertical axis. The option to reflect the brush is not exposed in the UI, or through the PDB, but is intended to be used for linking the brush transformation to the view transformation, in the next commit.
156 lines
8.4 KiB
C
156 lines
8.4 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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#ifndef __GIMP_BRUSH_H__
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#define __GIMP_BRUSH_H__
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#include "gimpdata.h"
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#define GIMP_BRUSH_MAX_SIZE 10000.0 /*Max size in either dimension in px*/
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#define GIMP_TYPE_BRUSH (gimp_brush_get_type ())
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#define GIMP_BRUSH(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_BRUSH, GimpBrush))
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#define GIMP_BRUSH_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_BRUSH, GimpBrushClass))
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#define GIMP_IS_BRUSH(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_BRUSH))
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#define GIMP_IS_BRUSH_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_BRUSH))
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#define GIMP_BRUSH_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_BRUSH, GimpBrushClass))
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typedef struct _GimpBrushPrivate GimpBrushPrivate;
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typedef struct _GimpBrushClass GimpBrushClass;
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struct _GimpBrush
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{
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GimpData parent_instance;
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GimpBrushPrivate *priv;
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};
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struct _GimpBrushClass
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{
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GimpDataClass parent_class;
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/* virtual functions */
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void (* begin_use) (GimpBrush *brush);
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void (* end_use) (GimpBrush *brush);
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GimpBrush * (* select_brush) (GimpBrush *brush,
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const GimpCoords *last_coords,
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const GimpCoords *current_coords);
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gboolean (* want_null_motion) (GimpBrush *brush,
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const GimpCoords *last_coords,
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const GimpCoords *current_coords);
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void (* transform_size) (GimpBrush *brush,
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gdouble scale,
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gdouble aspect_ratio,
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gdouble angle,
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gboolean reflect,
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gint *width,
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gint *height);
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GimpTempBuf * (* transform_mask) (GimpBrush *brush,
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gdouble scale,
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gdouble aspect_ratio,
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gdouble angle,
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gboolean reflect,
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gdouble hardness);
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GimpTempBuf * (* transform_pixmap) (GimpBrush *brush,
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gdouble scale,
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gdouble aspect_ratio,
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gdouble angle,
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gboolean reflect,
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gdouble hardness);
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GimpBezierDesc * (* transform_boundary) (GimpBrush *brush,
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gdouble scale,
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gdouble aspect_ratio,
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gdouble angle,
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gboolean reflect,
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gdouble hardness,
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gint *width,
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gint *height);
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/* signals */
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void (* spacing_changed) (GimpBrush *brush);
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};
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GType gimp_brush_get_type (void) G_GNUC_CONST;
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GimpData * gimp_brush_new (GimpContext *context,
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const gchar *name);
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GimpData * gimp_brush_get_standard (GimpContext *context);
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void gimp_brush_begin_use (GimpBrush *brush);
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void gimp_brush_end_use (GimpBrush *brush);
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GimpBrush * gimp_brush_select_brush (GimpBrush *brush,
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const GimpCoords *last_coords,
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const GimpCoords *current_coords);
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gboolean gimp_brush_want_null_motion (GimpBrush *brush,
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const GimpCoords *last_coords,
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const GimpCoords *current_coords);
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/* Gets width and height of a transformed mask of the brush, for
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* provided parameters.
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*/
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void gimp_brush_transform_size (GimpBrush *brush,
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gdouble scale,
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gdouble aspect_ratio,
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gdouble angle,
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gboolean reflect,
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gint *width,
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gint *height);
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const GimpTempBuf * gimp_brush_transform_mask (GimpBrush *brush,
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GeglNode *op,
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gdouble scale,
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gdouble aspect_ratio,
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gdouble angle,
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gboolean reflect,
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gdouble hardness);
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const GimpTempBuf * gimp_brush_transform_pixmap (GimpBrush *brush,
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GeglNode *op,
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gdouble scale,
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gdouble aspect_ratio,
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gdouble angle,
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gboolean reflect,
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gdouble hardness);
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const GimpBezierDesc * gimp_brush_transform_boundary (GimpBrush *brush,
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gdouble scale,
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gdouble aspect_ratio,
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gdouble angle,
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gboolean reflect,
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gdouble hardness,
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gint *width,
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gint *height);
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GimpTempBuf * gimp_brush_get_mask (GimpBrush *brush);
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GimpTempBuf * gimp_brush_get_pixmap (GimpBrush *brush);
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gint gimp_brush_get_width (GimpBrush *brush);
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gint gimp_brush_get_height (GimpBrush *brush);
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gint gimp_brush_get_spacing (GimpBrush *brush);
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void gimp_brush_set_spacing (GimpBrush *brush,
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gint spacing);
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GimpVector2 gimp_brush_get_x_axis (GimpBrush *brush);
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GimpVector2 gimp_brush_get_y_axis (GimpBrush *brush);
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void gimp_brush_flush_blur_caches (GimpBrush *brush);
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gdouble gimp_brush_get_blur_hardness (GimpBrush *brush);
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#endif /* __GIMP_BRUSH_H__ */
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