Files
gimp/app/base/temp-buf.h
Michael Schumacher a4e81c3a6c Made brushes scalable (both up and down) by using existing scaling
2007-03-11  Michael Schumacher  <schumaml@cvs.gnome.org>

	Made brushes scalable (both up and down) by using existing
	scaling routines, and also refactored some brush-code. Patch by
	Martin Nordholts. Fixes bug #65030.

	* app/paint/gimpbrushcore.c:
	(gimp_brush_core_calc_brush_length_scale) Refactored 'get brush
	size' code to where it belongs, in GimpBrush-classes, and renamed
	gimp_brush_core_calc_brush_size to
	gimp_brush_core_calc_brush_length_scale.

	* app/paint/gimppaintoptions.c (gimp_paint_options_class_init):
	Changed Scale scale to [0.0, 100.0].

	* app/base/temp-buf.[ch] (mask_buf_new): Change signature to also
	take a bpp parameter.

	* app/base/brush-scale.[ch]: Changed brush_scale_(mask|pixmap) to
	the new brush_scale_buf, which uses existing scaling routines
	(scale_region) instead of dedicated down-scaling only routines.

	* app/tools/gimppaintoptions-gui.c (gimp_paint_options_gui): Made
	the brush Scale-slider logarithmic.

	* app/core/gimpbrushgenerated.c: Implemented the new
	get_scaled_size method inherited from GimpBrush, and modified
	gimp_brush_generated_calc to use this helper function.

	* app/core/gimpbrush.[ch]: Added public virtual method
	get_scaled_size to GimpBrush, overridden by GimpBrushGenerated,
	which calculates the buffer sizes for a given brush scaled with a
	given scale. Also changed calls to brush_scale_(mask|pixmap) to
	the new brush_scale_buf.

svn path=/trunk/; revision=22099
2007-03-11 16:28:08 +00:00

83 lines
3.4 KiB
C

/* 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 2 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef __TEMP_BUF_H__
#define __TEMP_BUF_H__
struct _TempBuf
{
gint bytes; /* the necessary info */
gint width;
gint height;
gint x, y; /* origin of data source */
guchar *data; /* The data buffer. Do never access this field
directly, use temp_buf_data() instead !! */
};
/* The temp buffer functions */
TempBuf * temp_buf_new (gint width,
gint height,
gint bytes,
gint x,
gint y,
const guchar *color);
TempBuf * temp_buf_new_check (gint width,
gint height,
GimpCheckType check_type,
GimpCheckSize check_size);
TempBuf * temp_buf_copy (TempBuf *src,
TempBuf *dest);
TempBuf * temp_buf_resize (TempBuf *buf,
gint bytes,
gint x,
gint y,
gint width,
gint height);
TempBuf * temp_buf_scale (TempBuf *buf,
gint width,
gint height) G_GNUC_WARN_UNUSED_RESULT;
TempBuf * temp_buf_copy_area (TempBuf *src,
TempBuf *dest,
gint x,
gint y,
gint width,
gint height,
gint dest_x,
gint dest_y);
void temp_buf_free (TempBuf *buf);
guchar * temp_buf_data (TempBuf *buf);
guchar * temp_buf_data_clear (TempBuf *buf);
gsize temp_buf_get_memsize (TempBuf *buf);
/* The mask buffer functions */
MaskBuf * mask_buf_new (gint width,
gint height,
gint bpp);
void mask_buf_free (MaskBuf *mask_buf);
guchar * mask_buf_data (MaskBuf *mask_buf);
guchar * mask_buf_data_clear (MaskBuf *mask_buf);
#endif /* __TEMP_BUF_H__ */