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