Files
gimp/libgimp/gimpmath.h
Michael Natterer fa30ba04c7 configure.in po-plug-ins/POTFILES.in plug-ins/common/Makefile.am
2000-01-25  Michael Natterer  <mitch@gimp.org>

	* configure.in
	* po-plug-ins/POTFILES.in
	* plug-ins/common/Makefile.am
	* plug-ins/common/plugin-defs.pl
	* plug-ins/megawidget/*: removed. (There were only 3 functions
	left which were used by ~5 plugins, so I moved the resp. functions
	to the plugins). More preview stuff to come...

	* app/airbrush_blob.c
	* modules/colorsel_triangle.c
	* modules/colorsel_water.c: use G_PI instead of M_PI.

	* app/procedural_db.h
	* libgimp/gimpenums.h
	* plug-ins/script-fu/script-fu-constants.c
	* tools/pdbgen/enums.pl: new PDB return value STATUS_CANCEL which
	indicates that "Cancel" was pressed in a plugin dialog. (Useful
	only for file load/save plugins).

	* app/fileops.[ch]
	* app/menus.c: changes to handle STATUS_CANCEL correctly. Did some
	code cleanup in fileops.[ch]. Pop up a warning if File->Save
	failed.

	* app/plug_in.c: return_val[0] is of type PDB_STATUS, not
	PDB_INT32.

	* libgimp/gimpmath.h: new constant G_MAXRAND which equals to
	RAND_MAX if it exists or to G_MAXINT otherwise.

	* libgimp/gimpwidgets.[ch]: new function gimp_random_seed_new()
	which creates a spinbutton and a "Time" toggle.
	Call the function which does the "set_sensitive" magic from the
	radio button callback.

	* plug-ins/[75 plugins]:

	- Return STATUS_CANCEL in all file load/save dialogs if "Cancel"
	  was pressed.
	- Standardized the file plugins' "run" functions.
	- Use G_PI and G_MAXRAND everywhere.
	- Added tons of scales and spinbuttons instead of text entries.
	- Applied uniform packing/spacings all over the place.
	- Reorganized some UIs (stuff like moving the preview to the top
	  left corner of the dialog).
	- Removed many ui helper functions and callbacks and use the stuff
	  from libgimp instead.
	- I tried not to restrict the range of possible values when I
	  replaced entries with spinbuttons/scales but may have failed,
	  though in some cases. Please test ;-)
	- #include <libgimp/gimpmath.h> where appropriate and use it's
	  constants.
	- Indentation, s/int/gint/ et.al., code cleanup.

	RFC: The plugins are definitely not useable with GIMP 1.0 any
	     more, so shouldn't we remove all the remaining compatibility
	     stuff ??? (like "#ifdef GIMP_HAVE_PARASITES")
2000-01-25 17:46:56 +00:00

78 lines
2.1 KiB
C

/* gimpmath.h
*
* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __GIMPMATH_H__
#define __GIMPMATH_H__
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#include <math.h>
/* Some portability enhancing stuff. For use both by the gimp app
* as well as plug-ins and modules.
*
* Include this instead of just <math.h>.
*/
#ifndef G_PI /* G_PI will be in GLib eventually */
#define G_PI 3.14159265358979323846
#endif
#ifndef G_PI_2 /* As will G_PI_2 */
#define G_PI_2 1.57079632679489661923
#endif
#ifndef G_PI_4 /* As will G_PI_4 */
#define G_PI_4 0.78539816339744830962
#endif
#ifndef G_SQRT2 /* As will G_SQRT2 */
#define G_SQRT2 1.4142135623730951
#endif
#ifndef RAND_MAX
#define G_MAXRAND G_MAXINT
#else
#define G_MAXRAND RAND_MAX
#endif
/* Use RINT() instead of rint() */
#ifdef HAVE_RINT
#define RINT(x) rint(x)
#else
#define RINT(x) floor ((x) + 0.5)
#endif
#define ROUND(x) ((int) ((x) + 0.5))
/* Square */
#define SQR(x) ((x) * (x))
/* limit a (0->511) int to 255 */
#define MAX255(a) ((a) | (((a) & 256) - (((a) & 256) >> 8)))
/* clamp a >>int32<<-range int between 0 and 255 inclusive */
/* broken! -> #define CLAMP0255(a) ((a & 0xFFFFFF00)? (~(a>>31)) : a) */
#define CLAMP0255(a) CLAMP(a,0,255)
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __GIMPMATH_H__ */