mirror of https://github.com/GNOME/gimp.git
125 lines
4.5 KiB
C
125 lines
4.5 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 __CHANNEL_H__
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#define __CHANNEL_H__
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#include "drawable.h"
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#include "boundary.h"
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#include "temp_buf.h"
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#include "tile_manager.h"
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/* OPERATIONS */
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#define ADD 0
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#define SUB 1
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#define REPLACE 2
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#define INTERSECT 3
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/* Half way point where a region is no longer visible in a selection */
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#define HALF_WAY 127
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/* structure declarations */
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#define GIMP_CHANNEL(obj) GTK_CHECK_CAST (obj, gimp_channel_get_type (), GimpChannel)
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#define GIMP_CHANNEL_CLASS(klass) GTK_CHECK_CLASS_CAST (klass, gimp_channel_get_type(), GimpChannelClass)
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#define GIMP_IS_CHANNEL(obj) GTK_CHECK_TYPE (obj, gimp_channel_get_type())
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typedef struct _GimpChannel GimpChannel;
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typedef struct _GimpChannelClass GimpChannelClass;
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typedef GimpChannel Channel; /* convenience */
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guint gimp_channel_get_type (void);
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/* Special undo type */
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typedef struct _channel_undo ChannelUndo;
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struct _channel_undo
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{
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Channel * channel; /* the actual channel */
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int prev_position; /* former position in list */
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Channel * prev_channel; /* previous active channel */
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int undo_type; /* is this a new channel undo */
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/* or a remove channel undo? */
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};
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/* Special undo type */
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typedef struct _mask_undo MaskUndo;
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struct _mask_undo
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{
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TileManager * tiles; /* the actual mask */
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int x, y; /* offsets */
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};
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/* function declarations */
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Channel * channel_new (int, int, int, char *, int, unsigned char *);
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Channel * channel_copy (Channel *);
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Channel * channel_ref (Channel *);
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void channel_unref (Channel *);
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Channel * channel_get_ID (int);
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void channel_delete (Channel *);
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void channel_scale (Channel *, int, int);
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void channel_resize (Channel *, int, int, int, int);
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/* access functions */
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unsigned char * channel_data (Channel *);
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int channel_toggle_visibility (Channel *);
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TempBuf * channel_preview (Channel *, int, int);
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void channel_invalidate_previews (int);
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/* selection mask functions */
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Channel * channel_new_mask (int, int, int);
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int channel_boundary (Channel *, BoundSeg **, BoundSeg **,
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int *, int *, int, int, int, int);
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int channel_bounds (Channel *, int *, int *, int *, int *);
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int channel_value (Channel *, int, int);
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int channel_is_empty (Channel *);
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void channel_add_segment (Channel *, int, int, int, int);
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void channel_sub_segment (Channel *, int, int, int, int);
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void channel_inter_segment (Channel *, int, int, int, int);
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void channel_combine_rect (Channel *, int, int, int, int, int);
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void channel_combine_ellipse (Channel *, int, int, int, int, int, int);
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void channel_combine_mask (Channel *, Channel *, int, int, int);
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void channel_feather (Channel *, Channel *, double, int, int, int);
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void channel_push_undo (Channel *);
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void channel_clear (Channel *);
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void channel_invert (Channel *);
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void channel_sharpen (Channel *);
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void channel_all (Channel *);
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void channel_border (Channel *, int);
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void channel_grow (Channel *, int);
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void channel_shrink (Channel *, int);
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void channel_translate (Channel *, int, int);
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void channel_load (Channel *, Channel *);
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void channel_invalidate_bounds (Channel *);
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extern int channel_get_count;
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/* from drawable.c */
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Channel * drawable_channel (GimpDrawable *);
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#endif /* __CHANNEL_H__ */
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