gimp/app/core/gimpimage.h

445 lines
19 KiB
C

/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattisbvf
*
* 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 __GIMP_IMAGE_H__
#define __GIMP_IMAGE_H__
#include "gimpobject.h"
#define MAX_CHANNELS 4
#define GRAY_PIX 0
#define ALPHA_G_PIX 1
#define RED_PIX 0
#define GREEN_PIX 1
#define BLUE_PIX 2
#define ALPHA_PIX 3
#define INDEXED_PIX 0
#define ALPHA_I_PIX 1
#define COLORMAP_SIZE 768
#define GIMP_TYPE_IMAGE (gimp_image_get_type ())
#define GIMP_IMAGE(obj) (GTK_CHECK_CAST (obj, GIMP_TYPE_IMAGE, GimpImage))
#define GIMP_IS_IMAGE(obj) (GTK_CHECK_TYPE (obj, GIMP_TYPE_IMAGE))
#define GIMP_IMAGE_CLASS(klass) (GTK_CHECK_CLASS_CAST (klass, GIMP_TYPE_IMAGE, GimpImageClass))
typedef struct _GimpImageClass GimpImageClass;
struct _GimpImage
{
GimpObject parent_instance;
PlugInProcDef *save_proc; /* last PDB save proc used */
gint width, height; /* width and height attributes */
gdouble xresolution; /* image x-res, in dpi */
gdouble yresolution; /* image y-res, in dpi */
GimpUnit unit; /* image unit */
GimpImageBaseType base_type; /* base gimp_image type */
guchar *cmap; /* colormap--for indexed */
gint num_cols; /* number of cols--for indexed */
gint dirty; /* dirty flag -- # of ops */
gboolean undo_on; /* Is undo enabled? */
gint instance_count; /* number of instances */
gint disp_count; /* number of displays */
Tattoo tattoo_state; /* the next unique tattoo to use*/
TileManager *shadow; /* shadow buffer tiles */
/* Projection attributes */
gint construct_flag; /* flag for construction */
GimpImageType proj_type; /* type of the projection image */
gint proj_bytes; /* bpp in projection image */
gint proj_level; /* projection level */
TileManager *projection; /* The projection--layers & */
/* channels */
GList *guides; /* guides */
/* Layer/Channel attributes */
GSList *layers; /* the list of layers */
GSList *channels; /* the list of masks */
GSList *layer_stack; /* the layers in MRU order */
Layer *active_layer; /* ID of active layer */
Channel *active_channel; /* ID of active channel */
Layer *floating_sel; /* ID of fs layer */
Channel *selection_mask; /* selection mask channel */
ParasiteList *parasites; /* Plug-in parasite data */
PathList *paths; /* Paths data for this image */
gboolean visible[MAX_CHANNELS]; /* visible channels */
gboolean active[MAX_CHANNELS]; /* active channels */
gboolean by_color_select; /* TRUE if there's an active */
/* "by color" selection dialog */
gboolean qmask_state; /* TRUE if qmask is on */
gdouble qmask_opacity; /* opacity of the qmask channel */
guchar qmask_color[3]; /* rgb triplet of the color */
/* Undo apparatus */
GSList *undo_stack; /* stack for undo operations */
GSList *redo_stack; /* stack for redo operations */
gint undo_bytes; /* bytes in undo stack */
gint undo_levels; /* levels in undo stack */
gint group_count; /* nested undo groups */
UndoType pushing_undo_group; /* undo group status flag */
GtkWidget *undo_history; /* history viewer, or NULL */
/* Composite preview */
TempBuf *comp_preview; /* the composite preview */
gboolean comp_preview_valid[3]; /* preview valid-1/channel */
};
struct _GimpImageClass
{
GimpObjectClass parent_class;
void (* clean) (GimpImage *gimage);
void (* dirty) (GimpImage *gimage);
void (* repaint) (GimpImage *gimage);
void (* resize) (GimpImage *gimage);
void (* restructure) (GimpImage *gimage);
void (* colormap_changed) (GimpImage *gimage);
void (* undo_event) (GimpImage *gimage);
};
#define GIMP_IMAGE_TYPE_HAS_ALPHA(t) ((t)==RGBA_GIMAGE || (t)==GRAYA_GIMAGE || (t)==INDEXEDA_GIMAGE)
typedef enum
{
RED_CHANNEL,
GREEN_CHANNEL,
BLUE_CHANNEL,
GRAY_CHANNEL,
INDEXED_CHANNEL,
AUXILLARY_CHANNEL
} ChannelType;
typedef enum
{
EXPAND_AS_NECESSARY,
CLIP_TO_IMAGE,
CLIP_TO_BOTTOM_LAYER,
FLATTEN_IMAGE
} MergeType;
/* Ugly! Move this someplace else! Prolly to gdisplay.. */
struct _Guide
{
gint ref_count;
gint position;
InternalOrientationType orientation;
guint32 guide_ID;
};
typedef struct _GimpImageRepaintArg
{
Layer *layer;
guint x;
guint y;
guint width;
guint height;
} GimpImageRepaintArg;
/* function declarations */
GtkType gimp_image_get_type (void);
GimpImage * gimp_image_new (gint width,
gint height,
GimpImageBaseType base_type);
void gimp_image_set_filename (GimpImage *gimage,
const gchar *filename);
void gimp_image_set_resolution (GimpImage *gimage,
gdouble xres,
gdouble yres);
void gimp_image_get_resolution (const GimpImage *gimage,
gdouble *xresolution,
gdouble *yresolution);
void gimp_image_set_unit (GimpImage *gimage,
GimpUnit unit);
GimpUnit gimp_image_get_unit (const GimpImage *gimage);
void gimp_image_set_save_proc (GimpImage *gimage,
PlugInProcDef *proc);
PlugInProcDef * gimp_image_get_save_proc (const GimpImage *gimage);
gint gimp_image_get_width (const GimpImage *gimage);
gint gimp_image_get_height (const GimpImage *gimage);
void gimp_image_resize (GimpImage *gimage,
gint new_width,
gint new_height,
gint offset_x,
gint offset_y);
void gimp_image_scale (GimpImage *gimage,
gint new_width,
gint new_height);
TileManager * gimp_image_shadow (GimpImage *gimage,
gint width,
gint height,
gint bpp);
void gimp_image_free_shadow (GimpImage *gimage);
void gimp_image_apply_image (GimpImage *gimage,
GimpDrawable *drawable,
PixelRegion *src2PR,
gint undo,
gint opacity,
LayerModeEffects mode,
TileManager *src1_tiles,
gint x,
gint y);
void gimp_image_replace_image (GimpImage *gimage,
GimpDrawable *drawable,
PixelRegion *src2PR,
gint undo,
gint opacity,
PixelRegion *maskPR,
gint x,
gint y);
void gimp_image_get_foreground (const GimpImage *gimage,
const GimpDrawable *drawable,
guchar *fg);
void gimp_image_get_background (const GimpImage *gimage,
const GimpDrawable *drawable,
guchar *bg);
guchar * gimp_image_get_color_at (GimpImage *gimage,
gint x,
gint y);
void gimp_image_get_color (const GimpImage *gimage,
GimpImageType d_type,
guchar *rgb,
guchar *src);
void gimp_image_transform_color (const GimpImage *gimage,
const GimpDrawable *drawable,
guchar *src,
guchar *dest,
GimpImageBaseType type);
Guide * gimp_image_add_hguide (GimpImage *gimage);
Guide * gimp_image_add_vguide (GimpImage *gimage);
void gimp_image_add_guide (GimpImage *gimage,
Guide *guide);
void gimp_image_remove_guide (GimpImage *gimage,
Guide *guide);
void gimp_image_delete_guide (GimpImage *gimage,
Guide *guide);
GimpParasite * gimp_image_parasite_find (const GimpImage *gimage,
const gchar *name);
gchar ** gimp_image_parasite_list (const GimpImage *gimage,
gint *count);
void gimp_image_parasite_attach (GimpImage *gimage,
GimpParasite *parasite);
void gimp_image_parasite_detach (GimpImage *gimage,
const gchar *parasite);
Tattoo gimp_image_get_new_tattoo (GimpImage *gimage);
gboolean gimp_image_set_tattoo_state (GimpImage *gimage,
Tattoo val);
Tattoo gimp_image_get_tattoo_state (GimpImage *gimage);
void gimp_image_set_paths (GimpImage *gimage,
PathList *paths);
PathList * gimp_image_get_paths (const GimpImage *gimage);
/* Temporary hack till colormap manipulation is encapsulated in functions.
Call this whenever you modify an image's colormap. The ncol argument
specifies which color has changed, or negative if there's a bigger change.
Currently, use this also when the image's base type is changed to/from
indexed. */
void gimp_image_colormap_changed (const GimpImage *image,
gint col);
/* layer/channel functions */
gint gimp_image_get_layer_index (const GimpImage *gimage,
const Layer *layer_arg);
Layer * gimp_image_get_layer_by_index (const GimpImage *gimage,
gint layer_index);
gint gimp_image_get_channel_index (const GimpImage *gimage,
const Channel *channel_arg);
Layer * gimp_image_get_active_layer (const GimpImage *gimage);
Channel * gimp_image_get_active_channel (const GimpImage *gimage);
Layer * gimp_image_get_layer_by_tattoo (const GimpImage *gimage,
Tattoo tatoo);
Channel * gimp_image_get_channel_by_tattoo (const GimpImage *gimage,
Tattoo tatoo);
Channel * gimp_image_get_channel_by_name (const GimpImage *gimage,
const gchar *name);
Channel * gimp_image_get_mask (const GimpImage *gimage);
gboolean gimp_image_get_component_active (const GimpImage *gimage,
ChannelType type);
gboolean gimp_image_get_component_visible (const GimpImage *gimage,
ChannelType type);
gboolean gimp_image_layer_boundary (const GimpImage *gimage,
BoundSeg **segs,
gint *n_segs);
Layer * gimp_image_set_active_layer (GimpImage *gimage,
Layer *layer);
Channel * gimp_image_set_active_channel (GimpImage *gimage,
Channel *channel);
Channel * gimp_image_unset_active_channel (GimpImage *gimage);
void gimp_image_set_component_active (GimpImage *gimage,
ChannelType type,
gboolean active);
void gimp_image_set_component_visible (GimpImage *gimage,
ChannelType type,
gboolean visible);
Layer * gimp_image_pick_correlate_layer (const GimpImage *gimage,
gint x,
gint y);
Layer * gimp_image_raise_layer (GimpImage *gimage,
Layer *layer_arg);
Layer * gimp_image_lower_layer (GimpImage *gimage,
Layer *layer_arg);
Layer * gimp_image_raise_layer_to_top (GimpImage *gimage,
Layer *layer_arg);
Layer * gimp_image_lower_layer_to_bottom (GimpImage *gimage,
Layer *layer_arg);
Layer * gimp_image_position_layer (GimpImage *gimage,
Layer *layer_arg,
gint new_index,
gboolean push_undo);
Layer * gimp_image_merge_visible_layers (GimpImage *gimage,
MergeType merge_type);
Layer * gimp_image_merge_down (GimpImage *gimage,
Layer *current_layer,
MergeType merge_type);
Layer * gimp_image_flatten (GimpImage *gimage);
Layer * gimp_image_merge_layers (GimpImage *gimage,
GSList *merge_list,
MergeType merge_type);
Layer * gimp_image_add_layer (GimpImage *gimage,
Layer *float_layer,
gint position);
Layer * gimp_image_remove_layer (GimpImage *gimage,
Layer *layer);
LayerMask * gimp_image_add_layer_mask (GimpImage *gimage,
Layer *layer,
LayerMask *mask);
Channel * gimp_image_remove_layer_mask (GimpImage *gimage,
Layer *layer,
MaskApplyMode mode);
Channel * gimp_image_raise_channel (GimpImage *gimage,
Channel *channel_arg);
Channel * gimp_image_lower_channel (GimpImage *gimage,
Channel *channel_arg);
Channel * gimp_image_position_channel (GimpImage *gimage,
Channel *channel_arg,
gint position);
Channel * gimp_image_add_channel (GimpImage *gimage,
Channel *channel,
gint position);
Channel * gimp_image_remove_channel (GimpImage *gimage,
Channel *channel);
void gimp_image_construct (GimpImage *gimage,
gint x,
gint y,
gint w,
gint h);
void gimp_image_invalidate_without_render (GimpImage *gimage,
gint x,
gint y,
gint w,
gint h,
gint x1,
gint y1,
gint x2,
gint y2);
void gimp_image_invalidate (GimpImage *gimage,
gint x,
gint y,
gint w,
gint h,
gint x1,
gint y1,
gint x2,
gint y2);
void gimp_image_validate (TileManager *tm,
Tile *tile);
/* Access functions */
gboolean gimp_image_is_empty (const GimpImage *gimage);
GimpDrawable * gimp_image_active_drawable (const GimpImage *gimage);
GimpImageBaseType gimp_image_base_type (const GimpImage *gimage);
GimpImageType gimp_image_base_type_with_alpha (const GimpImage *gimage);
const gchar * gimp_image_filename (const GimpImage *gimage);
gboolean gimp_image_undo_is_enabled (const GimpImage *gimage);
gboolean gimp_image_undo_enable (GimpImage *gimage);
gboolean gimp_image_undo_disable (GimpImage *gimage);
gboolean gimp_image_undo_freeze (GimpImage *gimage);
gboolean gimp_image_undo_thaw (GimpImage *gimage);
void gimp_image_undo_event (GimpImage *gimage,
gint event);
gint gimp_image_dirty (GimpImage *gimage);
gint gimp_image_clean (GimpImage *gimage);
void gimp_image_clean_all (GimpImage *gimage);
Layer * gimp_image_floating_sel (const GimpImage *gimage);
guchar * gimp_image_cmap (const GimpImage *gimage);
/* projection access functions */
TileManager * gimp_image_projection (GimpImage *gimage);
GimpImageType gimp_image_projection_type (const GimpImage *gimage);
gint gimp_image_projection_bytes (const GimpImage *gimage);
gint gimp_image_projection_opacity (const GimpImage *gimage);
void gimp_image_projection_realloc (GimpImage *gimage);
/* composite access functions */
TileManager * gimp_image_composite (GimpImage *gimage);
GimpImageType gimp_image_composite_type (const GimpImage *gimage);
gint gimp_image_composite_bytes (const GimpImage *gimage);
TempBuf * gimp_image_composite_preview (GimpImage *gimage,
ChannelType type,
gint width,
gint height);
gint gimp_image_preview_valid (const GimpImage *gimage,
ChannelType type);
void gimp_image_invalidate_preview (GimpImage *gimage);
void gimp_image_invalidate_previews (void);
TempBuf * gimp_image_construct_composite_preview (GimpImage *gimage,
gint width,
gint height);
#endif /* __GIMP_IMAGE_H__ */