gimp/app/layer.h

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/* 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.
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*/
#ifndef __LAYER_H__
#define __LAYER_H__
#include "apptypes.h"
#include "drawable.h"
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#include "boundary.h"
#include "channel.h"
#include "temp_buf.h"
#include "tile_manager.h"
#include "layerF.h"
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/* structure declarations */
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#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))
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GtkType gimp_layer_get_type (void);
GtkType gimp_layer_mask_get_type (void);
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/* Special undo types */
struct _layer_undo
{
Honest, guv, it's not a feature - it's a tightly integrated package of Mon Sep 20 12:51:30 EDT 1999 Austin Donnelly <austin@gimp.org> Honest, guv, it's not a feature - it's a tightly integrated package of undo system cleanups and fixes. NEW FILES: * app/undo_history.c: window showing recent undo (and redo) steps available. * app/undo_types.h: broken out of undo.h to fix circular includes. MODIFIED FILES: * app/Makefile.am: compile undo_history.c * app/channel.h: use enum for channel undo type, not just magic numbers. * app/layer.h: same for layer undos. * app/commands.c: edit_show_undo_history_cmd_callback() function to pull up undo history window. * app/commands.h: prototype for above. * app/gdisplay.c: make undo / redo menu items sensitive according to whether they would do anything. Would be easy to change the text to say what would be undone/redone, but I don't know the GTK. * app/gimpimage.c: new signal emitted by gimage: UNDO_EVENT. gimp_image_undo_event() function to emit it. * app/gimpimage.h: prototype for above. * app/gimpimageP.h: pushing_undo_group member is now an undo_type, not an int. Keep undo history widget here too (if created). * app/menus.c: add "Edit/Undo history..." to image menu. * app/undo.c: new types: enums undo_type and undo_state rather than ints and magic numbers. All undo_pop_* and undo_free_* functions made static. New static function undo_type_to_name(). Issue undo event signals on various important events (eg undo pushed, undo popped etc). undo_push() now takes a "dirties_image" arg to say whether image should be dirtied. Layer moves now dirty the image. A couple of g_return_if_fails () on undo_pop and undo_redo to assert we're not in the middle of an undo group. undo_get_{undo,redo}_name() to peek at names of top items on undo and redo stacks resp. undo_map_over_{undo,redo}_stack() to run a function for each item or group on stack. Layer and channel undos use symbolic names rather than 0 or 1. Array mapping undo types to names. * app/undo.h: split out undo types to undo_types.h. Prototypes for functions described above. undo_event_t enum. undo_history_new() prototype lives here too. Random other fixes: * app/gimpdrawable.c * app/image_render.c: default labels in switches to keep egcs happy. * app/nav_window.c: some fixes to (sort of) cope with image res != screen res. Still needs work to handle non-square pixels properly. * app/paths_dialog.c: bad idea to call gimp_image_dirty() directly. Even though it's currently commented out.
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Layer *layer; /* the actual layer */
gint prev_position; /* former position in list */
Layer *prev_layer; /* previous active layer */
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};
struct _layer_mask_undo
{
Honest, guv, it's not a feature - it's a tightly integrated package of Mon Sep 20 12:51:30 EDT 1999 Austin Donnelly <austin@gimp.org> Honest, guv, it's not a feature - it's a tightly integrated package of undo system cleanups and fixes. NEW FILES: * app/undo_history.c: window showing recent undo (and redo) steps available. * app/undo_types.h: broken out of undo.h to fix circular includes. MODIFIED FILES: * app/Makefile.am: compile undo_history.c * app/channel.h: use enum for channel undo type, not just magic numbers. * app/layer.h: same for layer undos. * app/commands.c: edit_show_undo_history_cmd_callback() function to pull up undo history window. * app/commands.h: prototype for above. * app/gdisplay.c: make undo / redo menu items sensitive according to whether they would do anything. Would be easy to change the text to say what would be undone/redone, but I don't know the GTK. * app/gimpimage.c: new signal emitted by gimage: UNDO_EVENT. gimp_image_undo_event() function to emit it. * app/gimpimage.h: prototype for above. * app/gimpimageP.h: pushing_undo_group member is now an undo_type, not an int. Keep undo history widget here too (if created). * app/menus.c: add "Edit/Undo history..." to image menu. * app/undo.c: new types: enums undo_type and undo_state rather than ints and magic numbers. All undo_pop_* and undo_free_* functions made static. New static function undo_type_to_name(). Issue undo event signals on various important events (eg undo pushed, undo popped etc). undo_push() now takes a "dirties_image" arg to say whether image should be dirtied. Layer moves now dirty the image. A couple of g_return_if_fails () on undo_pop and undo_redo to assert we're not in the middle of an undo group. undo_get_{undo,redo}_name() to peek at names of top items on undo and redo stacks resp. undo_map_over_{undo,redo}_stack() to run a function for each item or group on stack. Layer and channel undos use symbolic names rather than 0 or 1. Array mapping undo types to names. * app/undo.h: split out undo types to undo_types.h. Prototypes for functions described above. undo_event_t enum. undo_history_new() prototype lives here too. Random other fixes: * app/gimpdrawable.c * app/image_render.c: default labels in switches to keep egcs happy. * app/nav_window.c: some fixes to (sort of) cope with image res != screen res. Still needs work to handle non-square pixels properly. * app/paths_dialog.c: bad idea to call gimp_image_dirty() directly. Even though it's currently commented out.
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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 */
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};
struct _fs_to_layer_undo
{
Layer *layer; /* the layer */
GimpDrawable *drawable; /* drawable of floating sel */
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};
/* function declarations */
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Layer * layer_new (GimpImage*, gint, gint,
GimpImageType,
gchar *, gint,
LayerModeEffects);
Layer * layer_copy (Layer *, gboolean);
Layer * layer_ref (Layer *);
void layer_unref (Layer *);
Layer * layer_new_from_tiles (GimpImage *, GimpImageType, TileManager *,
gchar *, gint, LayerModeEffects);
LayerMask * layer_add_mask (Layer *, LayerMask *);
LayerMask * layer_create_mask (Layer *, AddMaskType);
Layer * layer_get_ID (gint);
void layer_delete (Layer *);
void layer_removed (Layer *, gpointer);
void layer_apply_mask (Layer *, MaskApplyMode);
void layer_temporarily_translate (Layer *, gint, gint);
void layer_translate (Layer *, gint, gint);
void layer_add_alpha (Layer *);
void layer_scale (Layer *, gint, gint, gint);
void layer_resize (Layer *, gint, gint, gint, gint);
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void layer_resize_to_image (Layer *);
BoundSeg * layer_boundary (Layer *, gint *);
void layer_invalidate_boundary (Layer *);
gint layer_pick_correlate (Layer *, gint, gint);
LayerMask * layer_mask_new (GimpImage*, gint, gint, gchar *,
gint, guchar *);
LayerMask * layer_mask_copy (LayerMask *);
void layer_mask_delete (LayerMask *);
LayerMask * layer_mask_get_ID (gint);
LayerMask * layer_mask_ref (LayerMask *);
void layer_mask_unref (LayerMask *);
void layer_mask_set_layer (LayerMask *, Layer *);
Layer * layer_mask_get_layer (LayerMask *);
/* access functions */
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void layer_set_name (Layer *, gchar *);
gchar * layer_get_name (Layer *);
guchar * layer_data (Layer *);
LayerMask * layer_get_mask (Layer *);
gboolean layer_has_alpha (Layer *);
gboolean layer_is_floating_sel (Layer *);
gboolean layer_linked (Layer *);
TempBuf * layer_preview (Layer *, gint, gint);
TempBuf * layer_mask_preview (Layer *, gint, gint);
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void layer_invalidate_previews (GimpImage *);
Tattoo layer_get_tattoo (const Layer *);
#define drawable_layer GIMP_IS_LAYER
#define drawable_layer_mask GIMP_IS_LAYER_MASK
/* from channel.c */
void channel_layer_alpha (Channel *, Layer *);
void channel_layer_mask (Channel *, Layer *);
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#endif /* __LAYER_H__ */