mirror of https://github.com/GNOME/gimp.git
211 lines
6.6 KiB
C
211 lines
6.6 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 "apptypes.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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typedef enum
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{
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ADD,
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SUB,
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REPLACE,
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INTERSECT
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} ChannelOps;
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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_TYPE_CHANNEL (gimp_channel_get_type ())
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#define GIMP_CHANNEL(obj) (GTK_CHECK_CAST ((obj), GIMP_TYPE_CHANNEL, GimpChannel))
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#define GIMP_CHANNEL_CLASS(klass) (GTK_CHECK_CLASS_CAST ((klass), GIMP_TYPE_CHANNEL, GimpChannelClass))
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#define GIMP_IS_CHANNEL(obj) (GTK_CHECK_TYPE ((obj), GIMP_TYPE_CHANNEL))
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#define GIMP_IS_CHANNEL_CLASS(klass) (GTK_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_CHANNEL))
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GtkType gimp_channel_get_type (void);
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/* Special undo type */
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typedef struct _ChannelUndo ChannelUndo;
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struct _ChannelUndo
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{
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Channel *channel; /* the actual channel */
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gint prev_position; /* former position in list */
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Channel *prev_channel; /* previous active channel */
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};
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/* Special undo type */
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typedef struct _MaskUndo MaskUndo;
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struct _MaskUndo
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{
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TileManager *tiles; /* the actual mask */
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gint x, y; /* offsets */
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};
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/* function declarations */
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Channel * channel_new (GimpImage *gimage,
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gint width,
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gint height,
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gchar *name,
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gint opacity,
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guchar *col);
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Channel * channel_copy (Channel *channel);
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Channel * channel_ref (Channel *channel);
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void channel_unref (Channel *channel);
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gchar * channel_get_name (Channel *channel);
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void channel_set_name (Channel *channel,
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gchar *name);
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gint channel_get_opacity (Channel *channel);
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void channel_set_opacity (Channel *channel,
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gint opacity);
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guchar * channel_get_color (Channel *channel);
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void channel_set_color (Channel *channel,
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guchar *color);
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Channel * channel_get_ID (gint ID);
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void channel_delete (Channel *channel);
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void channel_removed (Channel *channel,
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gpointer data);
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void channel_scale (Channel *channel,
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gint new_width,
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gint new_height);
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void channel_resize (Channel *channel,
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gint new_width,
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gint new_height,
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gint offx,
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gint offy);
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void channel_update (Channel *channel);
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/* access functions */
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gboolean channel_toggle_visibility (Channel *channel);
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TempBuf * channel_preview (Channel *channel,
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gint width,
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gint height);
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void channel_invalidate_previews (GimpImage *gimage);
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Tattoo channel_get_tattoo (const Channel *channel);
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void channel_set_tattoo (const Channel *channel,
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Tattoo value);
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/* selection mask functions */
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Channel * channel_new_mask (GimpImage *gimage,
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gint width,
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gint height);
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gboolean channel_boundary (Channel *mask,
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BoundSeg **segs_in,
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BoundSeg **segs_out,
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gint *num_segs_in,
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gint *num_segs_out,
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gint x1,
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gint y1,
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gint x2,
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gint y2);
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gboolean channel_bounds (Channel *mask,
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gint *x1,
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gint *y1,
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gint *x2,
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gint *y2);
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gint channel_value (Channel *mask,
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gint x,
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gint y);
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gboolean channel_is_empty (Channel *mask);
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void channel_add_segment (Channel *mask,
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gint x,
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gint y,
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gint width,
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gint value);
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void channel_sub_segment (Channel *mask,
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gint x,
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gint y,
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gint width,
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gint value);
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void channel_combine_rect (Channel *mask,
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ChannelOps op,
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gint x,
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gint y,
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gint w,
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gint h);
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void channel_combine_ellipse (Channel *mask,
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ChannelOps op,
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gint x,
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gint y,
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gint w,
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gint h,
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gboolean antialias);
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void channel_combine_mask (Channel *mask,
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Channel *add_on,
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ChannelOps op,
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gint off_x,
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gint off_y);
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void channel_feather (Channel *input,
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Channel *output,
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gdouble radius_x,
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gdouble radius_y,
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ChannelOps op,
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gint off_x,
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gint off_y);
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void channel_push_undo (Channel *mask);
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void channel_clear (Channel *mask);
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void channel_invert (Channel *mask);
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void channel_sharpen (Channel *mask);
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void channel_all (Channel *mask);
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void channel_border (Channel *mask,
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gint radius_x,
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gint radius_y);
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void channel_grow (Channel *mask,
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gint radius_x,
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gint radius_y);
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void channel_shrink (Channel *mask,
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gint radius_x,
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gint radius_y,
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gboolean edge_lock);
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void channel_translate (Channel *mask,
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gint off_x,
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gint off_y);
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void channel_load (Channel *mask,
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Channel *channel);
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void channel_invalidate_bounds (Channel *channel);
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#define drawable_channel GIMP_IS_CHANNEL
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#endif /* __CHANNEL_H__ */
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