1186dfd256
2006-11-09 Michael Natterer <mitch@gimp.org> Properly abstract brush scaling: * app/core/gimpbrush.[ch]: added virtual functions GimpBrush::scale_mask() and ::scale_pixmap() and default implementations which call the functions in base/brush-scale.c. * app/core/gimpbrushgenerated.c: factored out brush calculation to an internal utility function and call that function from ::dirty() and from the new ::scale_mask(). * app/core/gimpbrushcore.c: use gimp_brush_scale_mask/pixmap() instead of using the lowlevel scale functions directly. Fixes the uglyness that we were scaling generated brushes instead of simply recalculating them in the right size.
95 lines
3.8 KiB
C
95 lines
3.8 KiB
C
/* The GIMP -- an 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 2 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, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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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_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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GimpCoords *last_coords,
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GimpCoords *cur_coords);
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gboolean (* want_null_motion) (GimpBrush *brush,
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GimpCoords *last_coords,
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GimpCoords *cur_coords);
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TempBuf * (* scale_mask) (GimpBrush *brush,
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gdouble scale);
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TempBuf * (* scale_pixmap) (GimpBrush *brush,
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gdouble scale);
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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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GimpCoords *last_coords,
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GimpCoords *cur_coords);
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gboolean gimp_brush_want_null_motion (GimpBrush *brush,
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GimpCoords *last_coords,
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GimpCoords *cur_coords);
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TempBuf * gimp_brush_scale_mask (GimpBrush *brush,
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gdouble scale);
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TempBuf * gimp_brush_scale_pixmap (GimpBrush *brush,
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gdouble scale);
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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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