gimp/app/layer.h

179 lines
7.2 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 __LAYER_H__
#define __LAYER_H__
#include "apptypes.h"
#include "drawable.h"
#include "boundary.h"
#include "channel.h"
#include "temp_buf.h"
#include "tile_manager.h"
#include "layerF.h"
/* structure declarations */
#define GIMP_TYPE_LAYER (gimp_layer_get_type ())
#define GIMP_LAYER(obj) (GTK_CHECK_CAST ((obj), GIMP_TYPE_LAYER, GimpLayer))
#define GIMP_LAYER_CLASS(klass) (GTK_CHECK_CLASS_CAST ((klass), GIMP_TYPE_LAYER, GimpLayerClass))
#define GIMP_IS_LAYER(obj) (GTK_CHECK_TYPE ((obj), GIMP_TYPE_LAYER))
#define GIMP_IS_LAYER_CLASS(klass) (GTK_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_LAYER))
#define GIMP_TYPE_LAYER_MASK (gimp_layer_mask_get_type ())
#define GIMP_LAYER_MASK(obj) (GTK_CHECK_CAST ((obj), GIMP_TYPE_LAYER_MASK, GimpLayerMask))
#define GIMP_LAYER_MASK_CLASS(klass) (GTK_CHECK_CLASS_CAST ((klass), GIMP_TYPE_LAYER_MASK, GimpLayerMaskClass))
#define GIMP_IS_LAYER_MASK(obj) (GTK_CHECK_TYPE ((obj), GIMP_TYPE_LAYER_MASK))
#define GIMP_IS_LAYER_MASK_CLASS(klass) (GTK_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_LAYER_MASK))
GtkType gimp_layer_get_type (void);
GtkType gimp_layer_mask_get_type (void);
/* Special undo types */
struct _layer_undo
{
Layer *layer; /* the actual layer */
gint prev_position; /* former position in list */
Layer *prev_layer; /* previous active layer */
};
struct _layer_mask_undo
{
Layer *layer; /* the layer */
gboolean apply_mask; /* apply mask? */
gboolean edit_mask; /* edit mask or layer? */
gboolean show_mask; /* show the mask? */
LayerMask *mask; /* the layer mask */
gint mode; /* the application mode */
};
struct _fs_to_layer_undo
{
Layer *layer; /* the layer */
GimpDrawable *drawable; /* drawable of floating sel */
};
/* function declarations */
Layer * layer_new (GimpImage *gimage,
gint width,
gint height,
GimpImageType type,
gchar *name,
gint opacity,
LayerModeEffects mode);
Layer * layer_copy (Layer *layer,
gboolean add_alpha);
Layer * layer_ref (Layer *layer);
void layer_unref (Layer *layer);
Layer * layer_new_from_tiles (GimpImage *gimage,
GimpImageType layer_type,
TileManager *tiles,
gchar *name,
gint opacity,
LayerModeEffects mode);
gboolean layer_check_scaling (Layer *layer,
gint new_width,
gint new_height);
LayerMask * layer_create_mask (Layer *layer,
AddMaskType add_mask_type);
LayerMask * layer_add_mask (Layer *layer,
LayerMask *mask);
Layer * layer_get_ID (gint ID);
void layer_delete (Layer *layer);
void layer_removed (Layer *layer,
gpointer data);
void layer_apply_mask (Layer *layer,
MaskApplyMode mode);
void layer_temporarily_translate (Layer *layer,
gint off_x,
gint off_y);
void layer_translate (Layer *layer,
gint off_x,
gint off_y);
void layer_add_alpha (Layer *layer);
gboolean layer_scale_by_factors (Layer *layer,
gdouble w_factor,
gdouble h_factor);
void layer_scale (Layer *layer,
gint new_width,
gint new_height,
gboolean local_origin);
void layer_resize (Layer *layer,
gint new_width,
gint new_height,
gint offx,
gint offy);
void layer_resize_to_image (Layer *layer);
BoundSeg * layer_boundary (Layer *layer,
gint *num_segs);
void layer_invalidate_boundary (Layer *layer);
gint layer_pick_correlate (Layer *layer,
gint x,
gint y);
LayerMask * layer_mask_new (GimpImage *gimage,
gint width,
gint height,
gchar *name,
gint opacity,
guchar *col);
LayerMask * layer_mask_copy (LayerMask *layer_mask);
void layer_mask_delete (LayerMask *layer_mask);
LayerMask * layer_mask_get_ID (gint ID);
LayerMask * layer_mask_ref (LayerMask *layer_mask);
void layer_mask_unref (LayerMask *layer_mask);
void layer_mask_set_layer (LayerMask *layer_mask,
Layer *layer);
Layer * layer_mask_get_layer (LayerMask *layer_mask);
/* access functions */
void layer_set_name (Layer *layer,
gchar *name);
gchar * layer_get_name (Layer *layer);
guchar * layer_data (Layer *layer);
LayerMask * layer_get_mask (Layer *layer);
gboolean layer_has_alpha (Layer *layer);
gboolean layer_is_floating_sel (Layer *layer);
gboolean layer_linked (Layer *layer);
TempBuf * layer_preview (Layer *layer,
gint width,
gint height);
TempBuf * layer_mask_preview (Layer *layer,
gint width,
gint height);
void layer_invalidate_previews (GimpImage *gimage);
Tattoo layer_get_tattoo (const Layer *layer);
void layer_set_tattoo (const Layer *layer,
Tattoo value);
#define drawable_layer GIMP_IS_LAYER
#define drawable_layer_mask GIMP_IS_LAYER_MASK
void channel_layer_alpha (Channel *mask,
Layer *layer);
/* from channel.c */
void channel_layer_mask (Channel *mask,
Layer *layer);
#endif /* __LAYER_H__ */