gimp/app/base/curves.h

103 lines
2.8 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 __GIMP_CURVES_TOOL_H__
#define __GIMP_CURVES_TOOL_H__
#include "gimpimagemaptool.h"
#define SMOOTH 0
#define GFREE 1
#define GIMP_TYPE_CURVES_TOOL (gimp_curves_tool_get_type ())
#define GIMP_CURVES_TOOL(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_CURVES_TOOL, GimpCurvesTool))
#define GIMP_IS_CURVES_TOOL(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_CURVES_TOOL))
#define GIMP_CURVES_TOOL_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_CURVES_TOOL, GimpCurvesToolClass))
#define GIMP_IS_CURVES_TOOL_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_CURVES_TOOL))
typedef struct _GimpCurvesTool GimpCurvesTool;
typedef struct _GimpCurvesToolClass GimpCurvesToolClass;
struct _GimpCurvesTool
{
GimpImageMapTool parent_instance;
};
struct _GimpCurvesToolClass
{
GimpImageMapToolClass parent_class;
};
typedef struct _CurvesDialog CurvesDialog;
struct _CurvesDialog
{
GtkWidget *shell;
GtkWidget *channel_menu;
GtkWidget *xrange;
GtkWidget *yrange;
GtkWidget *graph;
GdkPixmap *pixmap;
GtkWidget *curve_type_menu;
PangoLayout *xpos_layout;
PangoLayout *cursor_layout;
PangoRectangle cursor_rect;
GimpDrawable *drawable;
ImageMap *image_map;
gint color;
gint channel;
gboolean preview;
gint grab_point;
gint last;
gint leftmost;
gint rightmost;
gint curve_type[5];
gint points[5][17][2];
guchar curve[5][256];
gint col_value[5];
GimpLut *lut;
};
void gimp_curves_tool_register (Gimp *gimp);
GType gimp_curves_tool_get_type (void);
void curves_dialog_hide (void);
void curves_free (void);
gfloat curves_lut_func (CurvesDialog *cd,
gint nchannels,
gint channel,
gfloat value);
void curves_calculate_curve (CurvesDialog *cd);
#endif /* __CURVES_H__ */