mirror of https://github.com/GNOME/gimp.git
146 lines
4.9 KiB
C
146 lines
4.9 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., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef __LAYER_H__
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#define __LAYER_H__
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#include "drawable.h"
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#include "boundary.h"
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#include "channel.h"
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#include "temp_buf.h"
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#include "tile_manager.h"
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#define APPLY 0
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#define DISCARD 1
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typedef enum
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{
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WhiteMask,
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BlackMask,
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AlphaMask
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} AddMaskType;
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/* structure declarations */
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#define GIMP_LAYER(obj) GTK_CHECK_CAST (obj, gimp_layer_get_type (), GimpLayer)
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#define GIMP_LAYER_CLASS(klass) GTK_CHECK_CLASS_CAST (klass, gimp_layer_get_type(), GimpLayerClass)
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#define GIMP_IS_LAYER(obj) GTK_CHECK_TYPE (obj, gimp_layer_get_type())
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#define GIMP_LAYER_MASK(obj) GTK_CHECK_CAST (obj, gimp_layer_mask_get_type (), GimpLayerMask)
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#define GIMP_LAYER_MASK_CLASS(klass) GTK_CHECK_CLASS_CAST (klass, gimp_layer_mask_get_type(), GimpLayerMaskClass)
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#define GIMP_IS_LAYER_MASK(obj) GTK_CHECK_TYPE (obj, gimp_layer_mask_get_type())
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typedef struct _GimpLayer GimpLayer;
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typedef struct _GimpLayerClass GimpLayerClass;
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typedef struct _GimpLayerMask GimpLayerMask;
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typedef struct _GimpLayerMaskClass GimpLayerMaskClass;
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typedef GimpLayer Layer; /* convenience */
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typedef GimpLayerMask LayerMask; /* convenience */
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guint gimp_layer_get_type (void);
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guint gimp_layer_mask_get_type (void);
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/* Special undo types */
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typedef struct _layer_undo LayerUndo;
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struct _layer_undo
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{
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Layer * layer; /* the actual layer */
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int prev_position; /* former position in list */
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Layer * prev_layer; /* previous active layer */
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int undo_type; /* is this a new layer undo */
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/* or a remove layer undo? */
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};
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typedef struct _layer_mask_undo LayerMaskUndo;
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struct _layer_mask_undo
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{
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Layer * layer; /* the layer */
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int apply_mask; /* apply mask? */
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int edit_mask; /* edit mask or layer? */
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int show_mask; /* show the mask? */
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LayerMask *mask; /* the layer mask */
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int mode; /* the application mode */
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int undo_type; /* is this a new layer mask */
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/* or a remove layer mask */
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};
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typedef struct _fs_to_layer_undo FStoLayerUndo;
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struct _fs_to_layer_undo
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{
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Layer * layer; /* the layer */
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GimpDrawable * drawable; /* drawable of floating sel */
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};
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/* function declarations */
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Layer * layer_new (int, int, int, int, char *, int, int);
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Layer * layer_copy (Layer *, int);
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Layer * layer_ref (Layer *);
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void layer_unref (Layer *);
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Layer * layer_from_tiles (void *, GimpDrawable *, TileManager *, char *, int, int);
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LayerMask * layer_add_mask (Layer *, LayerMask *);
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LayerMask * layer_create_mask (Layer *, AddMaskType);
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Layer * layer_get_ID (int);
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void layer_delete (Layer *);
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void layer_apply_mask (Layer *, int);
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void layer_translate (Layer *, int, int);
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void layer_add_alpha (Layer *);
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void layer_scale (Layer *, int, int, int);
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void layer_resize (Layer *, int, int, int, int);
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BoundSeg * layer_boundary (Layer *, int *);
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void layer_invalidate_boundary (Layer *);
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int layer_pick_correlate (Layer *, int, int);
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LayerMask * layer_mask_new (int, int, int, char *,
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int, unsigned char *);
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LayerMask * layer_mask_copy (LayerMask *);
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void layer_mask_delete (LayerMask *);
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LayerMask * layer_mask_get_ID (int);
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LayerMask * layer_mask_ref (LayerMask *);
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void layer_mask_unref (LayerMask *);
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/* access functions */
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unsigned char * layer_data (Layer *);
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LayerMask * layer_mask (Layer *);
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int layer_has_alpha (Layer *);
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int layer_is_floating_sel (Layer *);
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int layer_linked (Layer *);
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TempBuf * layer_preview (Layer *, int, int);
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TempBuf * layer_mask_preview (Layer *, int, int);
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void layer_invalidate_previews (int);
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/* from drawable.c */
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Layer * drawable_layer (GimpDrawable *);
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LayerMask * drawable_layer_mask (GimpDrawable *);
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/* from channel.c */
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void channel_layer_alpha (Channel *, Layer *);
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void channel_layer_mask (Channel *, Layer *);
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#endif /* __LAYER_H__ */
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