gimp/app/curves.h

76 lines
2.1 KiB
C

/* The GIMP -- an 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 __CURVES_H__
#define __CURVES_H__
#include <gtk/gtk.h>
#include "image_map.h"
#include "lut_funcs.h"
#include "tools.h"
#define SMOOTH 0
#define GFREE 1
typedef struct _CurvesDialog CurvesDialog;
struct _CurvesDialog
{
GtkWidget *shell;
GtkWidget *channel_menu;
GtkWidget *xrange;
GtkWidget *yrange;
GtkWidget *graph;
GdkPixmap *pixmap;
GimpDrawable *drawable;
ImageMap image_map;
gint color;
gint channel;
gboolean preview;
gint grab_point;
gint last;
gint leftmost;
gint rightmost;
gint curve_type;
gint points[5][17][2];
guchar curve[5][256];
gint col_value[5];
gint cursor_ind_height;
gint cursor_ind_width;
gint cursor_ind_ascent;
GimpLut *lut;
};
Tool * tools_new_curves (void);
void tools_free_curves (Tool *tool);
void curves_initialize (GDisplay *gdisp);
void curves_free (void);
float curves_lut_func (CurvesDialog *cd,
gint nchannels,
gint channel,
gfloat value);
void curves_calculate_curve (CurvesDialog *cd);
#endif /* __CURVES_H__ */