9774988f30
For generated brushes, dynamic input is applied on top of the set hardness as a factor. For pixmaps, it influences the amount of blur applied to the stamp. Be warned, process is slow for large pixmaps. The odd feature previously advertised as hardness is left in but disabled. If I figure out what it should be exposed as, it might be made available again.
120 lines
5.5 KiB
C
120 lines
5.5 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 "libgimpmath/gimpvector.h"
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#include "gimpdata.h"
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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 _GimpBrushClass GimpBrushClass;
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struct _GimpBrush
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{
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GimpData parent_instance;
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TempBuf *mask; /* the actual mask */
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TempBuf *pixmap; /* optional pixmap data */
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gint spacing; /* brush's spacing */
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GimpVector2 x_axis; /* for calculating brush spacing */
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GimpVector2 y_axis; /* for calculating brush spacing */
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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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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_x,
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gdouble scale_y,
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gdouble angle,
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gint *width,
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gint *height);
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TempBuf * (* transform_mask) (GimpBrush *brush,
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gdouble scale_x,
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gdouble scale_y,
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gdouble angle,
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gdouble hardness);
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TempBuf * (* transform_pixmap) (GimpBrush *brush,
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gdouble scale_x,
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gdouble scale_y,
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gdouble angle,
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gdouble hardness);
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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 (const gchar *name);
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GimpData * gimp_brush_get_standard (void);
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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 provided parameters. */
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void gimp_brush_transform_size (GimpBrush *brush,
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gdouble scale_x,
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gdouble scale_y,
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gdouble angle,
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gint *width,
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gint *height);
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TempBuf * gimp_brush_transform_mask (GimpBrush *brush,
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gdouble scale_x,
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gdouble scale_y,
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gdouble angle,
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gdouble hardness);
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TempBuf * gimp_brush_transform_pixmap (GimpBrush *brush,
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gdouble scale_x,
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gdouble scale_y,
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gdouble angle,
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gdouble hardness);
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TempBuf * gimp_brush_get_mask (const GimpBrush *brush);
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TempBuf * gimp_brush_get_pixmap (const GimpBrush *brush);
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gint gimp_brush_get_spacing (const GimpBrush *brush);
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void gimp_brush_set_spacing (GimpBrush *brush,
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gint spacing);
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void gimp_brush_spacing_changed (GimpBrush *brush);
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#endif /* __GIMP_BRUSH_H__ */
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