aseprite/src/raster/layer.h

/* ASE - Allegro Sprite Editor
 * Copyright (C) 2001-2005, 2007  David A. Capello
 *
 * 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 RASTER_LAYER_H
#define RASTER_LAYER_H

#include "jinete/base.h"
#include "raster/gfxobj.h"

struct Frame;
struct Image;
struct Stock;

typedef struct Layer Layer;

struct Layer
{
  GfxObj gfxobj;
  char name[256];		/* layer name */
  GfxObj *parent;		/* parent object */
  unsigned readable : 1;
  unsigned writable : 1;

  /* for GFXOBJ_LAYER_IMAGE */
  int imgtype;			/* image type */
  int blend_mode;		/* constant blend mode */
  struct Stock *stock;		/* stock to get images */
  JList frames;			/* list of frames */

  /* for GFXOBJ_LAYER_SET */
  JList layers;

  /* XXX */
  /* struct Font *font; */
  /* char *text; */
  /* struct Prop *pos_x; */
  /* struct Prop *pos_y; */
  /* struct Prop *opacity; */
  /* int blend_mode; */
};

Layer *layer_new(int imgtype);
Layer *layer_set_new(void);
/* Layer *layer_new_text (const char *text); */
Layer *layer_new_copy(const Layer *layer);
Layer *layer_new_with_image(int imgtype, int x, int y, int w, int h, int frpos);
void layer_free(Layer *layer);

int layer_is_image(const Layer *layer);
int layer_is_set(const Layer *layer);

Layer *layer_get_prev(Layer *layer);
Layer *layer_get_next(Layer *layer);

void layer_set_name(Layer *layer, const char *name);
void layer_set_blend_mode(Layer *layer, int blend_mode);
void layer_set_parent(Layer *layer, GfxObj *gfxobj);

/* for LAYER_IMAGE */
void layer_add_frame(Layer *layer, struct Frame *frame);
void layer_remove_frame(Layer *layer, struct Frame *frame);
struct Frame *layer_get_frame(Layer *layer, int frpos);

/* for LAYER_SET */
void layer_add_layer(Layer *set, Layer *layer);
void layer_remove_layer(Layer *set, Layer *layer);
void layer_move_layer(Layer *set, Layer *layer, Layer *after);

void layer_render(Layer *layer, struct Image *image, int x, int y, int frpos);
Layer *layer_flatten(Layer *layer, int imgtype,
		     int x, int y, int w, int h, int frmin, int frmax);

#endif /* RASTER_LAYER_H */