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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.
- */
-
- #include "config.h"
-
- #include <stdlib.h>
- #include <string.h>
-
- #include <glib.h>
-
- #include "apptypes.h"
-
- #include "appenv.h"
- #include "by_color_select.h"
- #include "channel.h"
- #include "drawable.h"
- #include "floating_sel.h"
- #include "gdisplay.h"
- #include "gdisplay_ops.h"
- #include "gimage_mask.h"
- #include "gimpparasite.h"
- #include "gimprc.h"
- #include "layer.h"
- #include "paint_core.h"
- #include "paint_funcs.h"
- #include "parasitelist.h"
- #include "path_transform.h"
- #include "tools.h"
- #include "transform_core.h"
- #include "undo.h"
-
- #include "drawable_pvt.h"
- #include "layer_pvt.h"
- #include "channel_pvt.h"
- #include "tile_manager_pvt.h"
- #include "tile.h" /* ick. */
-
- #include "libgimp/gimpparasite.h"
-
- #include "libgimp/gimpintl.h"
-
-
- /*#define DEBUG*/
-
- #ifdef DEBUG
- #define TRC(x) printf x
- #else
- #define TRC(x)
- #endif
-
-
- typedef enum
- {
- UNDO = 0,
- REDO = 1
- } UndoState;
-
-
- typedef gboolean (* UndoPopFunc) (GImage *, UndoState, UndoType, gpointer);
- typedef void (* UndoFreeFunc) (UndoState, UndoType, gpointer);
-
- typedef struct _Undo Undo;
-
- struct _Undo
- {
- UndoType type; /* undo type */
- gpointer data; /* data to implement the undo, NULL for group */
- glong bytes; /* size of undo item */
- gboolean dirties_image; /* TRUE if undo mutates image */
- gboolean group_boundary; /* TRUE if this is the start/end of a group */
-
- UndoPopFunc pop_func; /* function pointer to undo pop proc */
- UndoFreeFunc free_func; /* function with specifics for freeing */
- };
-
- /* Pop functions */
-
- static gboolean undo_pop_image (GImage *,
- UndoState, UndoType, gpointer);
- static gboolean undo_pop_mask (GImage *,
- UndoState, UndoType, gpointer);
- static gboolean undo_pop_layer_displace (GImage *,
- UndoState, UndoType, gpointer);
- static gboolean undo_pop_transform (GImage *,
- UndoState, UndoType, gpointer);
- static gboolean undo_pop_paint (GImage *,
- UndoState, UndoType, gpointer);
- static gboolean undo_pop_layer (GImage *,
- UndoState, UndoType, gpointer);
- static gboolean undo_pop_layer_mod (GImage *,
- UndoState, UndoType, gpointer);
- static gboolean undo_pop_layer_mask (GImage *,
- UndoState, UndoType, gpointer);
- static gboolean undo_pop_channel (GImage *,
- UndoState, UndoType, gpointer);
- static gboolean undo_pop_channel_mod (GImage *,
- UndoState, UndoType, gpointer);
- static gboolean undo_pop_fs_to_layer (GImage *,
- UndoState, UndoType, gpointer);
- static gboolean undo_pop_fs_rigor (GImage *,
- UndoState, UndoType, gpointer);
- static gboolean undo_pop_fs_relax (GImage *,
- UndoState, UndoType, gpointer);
- static gboolean undo_pop_gimage_mod (GImage *,
- UndoState, UndoType, gpointer);
- static gboolean undo_pop_guide (GImage *,
- UndoState, UndoType, gpointer);
- static gboolean undo_pop_parasite (GImage *,
- UndoState, UndoType, gpointer);
- static gboolean undo_pop_qmask (GImage *,
- UndoState, UndoType, gpointer);
- static gboolean undo_pop_resolution (GImage *,
- UndoState, UndoType, gpointer);
- static gboolean undo_pop_layer_rename (GImage *,
- UndoState, UndoType, gpointer);
- static gboolean undo_pop_layer_reposition (GImage *,
- UndoState, UndoType, gpointer);
- static gboolean undo_pop_cantundo (GImage *,
- UndoState, UndoType, gpointer);
-
-
- /* Free functions */
-
- static void undo_free_image (UndoState, UndoType, gpointer);
- static void undo_free_mask (UndoState, UndoType, gpointer);
- static void undo_free_layer_displace (UndoState, UndoType, gpointer);
- static void undo_free_transform (UndoState, UndoType, gpointer);
- static void undo_free_paint (UndoState, UndoType, gpointer);
- static void undo_free_layer (UndoState, UndoType, gpointer);
- static void undo_free_layer_mod (UndoState, UndoType, gpointer);
- static void undo_free_layer_mask (UndoState, UndoType, gpointer);
- static void undo_free_channel (UndoState, UndoType, gpointer);
- static void undo_free_channel_mod (UndoState, UndoType, gpointer);
- static void undo_free_fs_to_layer (UndoState, UndoType, gpointer);
- static void undo_free_fs_rigor (UndoState, UndoType, gpointer);
- static void undo_free_fs_relax (UndoState, UndoType, gpointer);
- static void undo_free_gimage_mod (UndoState, UndoType, gpointer);
- static void undo_free_guide (UndoState, UndoType, gpointer);
- static void undo_free_parasite (UndoState, UndoType, gpointer);
- static void undo_free_qmask (UndoState, UndoType, gpointer);
- static void undo_free_resolution (UndoState, UndoType, gpointer);
- static void undo_free_layer_rename (UndoState, UndoType, gpointer);
- static void undo_free_layer_reposition(UndoState, UndoType, gpointer);
- static void undo_free_cantundo (UndoState, UndoType, gpointer);
-
-
- /* Sizing functions */
- static gint layer_size (Layer *layer);
- static gint channel_size (Channel *channel);
-
- static const gchar * undo_type_to_name (UndoType undo_type);
-
- static Undo * undo_new (UndoType undo_type,
- glong size,
- gboolean dirties_image);
-
-
- static gboolean shrink_wrap = FALSE;
-
-
- static gint
- layer_size (Layer *layer)
- {
- gint size;
-
- size =
- sizeof (Layer) +
- GIMP_DRAWABLE (layer)->width * GIMP_DRAWABLE (layer)->height *
- GIMP_DRAWABLE (layer)->bytes +
- strlen (GIMP_DRAWABLE (layer)->name);
-
- if (layer_get_mask (layer))
- size += channel_size (GIMP_CHANNEL (layer_get_mask (layer)));
-
- return size;
- }
-
-
- static gint
- channel_size (Channel *channel)
- {
- gint size;
-
- size =
- sizeof (Channel) +
- GIMP_DRAWABLE (channel)->width * GIMP_DRAWABLE (channel)->height +
- strlen (GIMP_DRAWABLE (channel)->name);
-
- return size;
- }
-
-
- static void
- undo_free_list (GImage *gimage,
- UndoState state,
- GSList *list)
- {
- GSList *orig;
- Undo *undo;
-
- orig = list;
-
- while (list)
- {
- undo = (Undo *) list->data;
- if (undo)
- {
- if (undo->free_func)
- (*undo->free_func) (state, undo->type, undo->data);
- gimage->undo_bytes -= undo->bytes;
- g_free (undo);
- }
- list = g_slist_next (list);
- }
-
- g_slist_free (orig);
- }
-
-
- static GSList *
- remove_stack_bottom (GImage *gimage)
- {
- GSList *list;
- GSList *last;
- Undo *object;
- gboolean in_group = FALSE;
-
- list = gimage->undo_stack;
-
- last = NULL;
- while (list)
- {
- if (list->next == NULL)
- {
- if (last)
- undo_free_list (gimage, UNDO, last->next);
- else
- undo_free_list (gimage, UNDO, list);
-
- gimage->undo_levels --;
- if (last)
- last->next = NULL;
- list = NULL;
-
- gimp_image_undo_event (gimage, UNDO_EXPIRED);
- }
- else
- {
- object = (Undo *) list->data;
- if (object->group_boundary)
- in_group = (in_group) ? FALSE : TRUE;
-
- /* Make sure last points to only a single item, or the
- * tail of an aggregate undo item
- */
- if (!in_group)
- last = list;
-
- list = g_slist_next (list);
- }
- }
-
- if (last)
- return gimage->undo_stack;
- else
- return NULL;
- }
-
-
- /* Allocate and initialise a new Undo. Leaves data and function
- * pointers zeroed ready to be filled in by caller. */
- static Undo *
- undo_new (UndoType type,
- glong size,
- gboolean dirties_image)
- {
- Undo *new;
-
- new = g_new0 (Undo, 1);
-
- new->type = type;
- new->bytes = size;
- new->dirties_image = dirties_image;
-
- return new;
- }
-
-
- static gboolean
- undo_free_up_space (GImage *gimage)
- {
- /* If there are 0 levels of undo return FALSE. */
- if (levels_of_undo == 0)
- return FALSE;
-
- /* Delete the item on the bottom of the stack if we have the maximum
- * levels of undo already
- */
- while (gimage->undo_levels >= levels_of_undo)
- gimage->undo_stack = remove_stack_bottom (gimage);
-
- return TRUE;
- }
-
-
- static Undo *
- undo_push (GImage *gimage,
- glong size,
- UndoType type,
- gboolean dirties_image)
- {
- Undo *new;
-
- /* Does this undo dirty the image? If so, we always want to mark
- * image dirty, even if we can't actually push the undo. */
- if (dirties_image)
- gimp_image_dirty (gimage);
-
- if (! gimage->undo_on)
- return NULL;
-
- size += sizeof (Undo);
-
- if (gimage->redo_stack)
- {
- undo_free_list (gimage, REDO, gimage->redo_stack);
- gimage->redo_stack = NULL;
-
- /* If the image was dirty, but could become clean by redo-ing
- * some actions, then it should now become 'infinitely' dirty.
- * This is because we've just nuked the actions that would allow
- * the image to become clean again. The only hope for salvation
- * is to save the image now! -- austin */
- if (gimage->dirty < 0)
- gimage->dirty = 10000;
- }
-
- if (gimage->pushing_undo_group == UNDO_NULL)
- if (! undo_free_up_space (gimage))
- return NULL;
-
- new = undo_new (type, size, dirties_image);
-
- gimage->undo_bytes += size;
-
- /* only increment levels if not in a group */
- if (gimage->pushing_undo_group == UNDO_NULL)
- gimage->undo_levels ++;
-
- gimage->undo_stack = g_slist_prepend (gimage->undo_stack, (gpointer) new);
- TRC (("undo_push: %s\n", undo_type_to_name (type)));
-
- /* lastly, tell people about the newly pushed undo (must come after
- * modification of undo_stack). */
- if (gimage->pushing_undo_group == UNDO_NULL)
- gimp_image_undo_event (gimage, UNDO_PUSHED);
-
- return new;
- }
-
-
- static gboolean
- pop_stack (GImage *gimage,
- GSList **stack_ptr,
- GSList **unstack_ptr,
- UndoState state)
- {
- Undo *object;
- GSList *stack;
- GSList *tmp;
- gint status = 0;
- gint in_group = 0;
- gint x, y;
- GDisplay *gdisp;
-
- /* Keep popping until we pop a valid object
- * or get to the end of a group if we're in one
- */
- while (*stack_ptr)
- {
- stack = *stack_ptr;
-
- object = (Undo *) stack->data;
- if (object->group_boundary)
- {
- in_group = (in_group) ? 0 : 1;
- if (in_group)
- gimage->undo_levels += (state == UNDO) ? -1 : 1;
-
- if (status && !in_group)
- status = 1;
- else
- status = 0;
- }
- else
- {
- TRC (("undo_pop: %s\n", undo_type_to_name (object->type)));
- status = (* object->pop_func) (gimage, state, object->type,
- object->data);
-
- if (object->dirties_image)
- {
- switch (state)
- {
- case UNDO:
- gimp_image_clean (gimage);
- break;
- case REDO:
- gimp_image_dirty (gimage);
- break;
- }
- }
-
- if (!in_group)
- gimage->undo_levels += (state == UNDO) ? -1 : 1;
- }
-
- *unstack_ptr = g_slist_prepend (*unstack_ptr, (gpointer) object);
-
- tmp = stack;
- *stack_ptr = g_slist_next (*stack_ptr);
- tmp->next = NULL;
- g_slist_free (tmp);
-
- if (status && !in_group)
- {
- /* Flush any image updates and displays */
- gdisp = gdisplay_active();
- if (gdisp != NULL)
- {
- if (gdisp->disp_xoffset || gdisp->disp_yoffset)
- {
- gdk_window_get_size (gdisp->canvas->window, &x, &y);
- if (gdisp->disp_yoffset)
- {
- gdisplay_expose_area (gdisp, 0, 0,
- gdisp->disp_width,
- gdisp->disp_yoffset);
- gdisplay_expose_area (gdisp, 0, gdisp->disp_yoffset + y,
- gdisp->disp_width,
- gdisp->disp_height);
- }
- if (gdisp->disp_xoffset)
- {
- gdisplay_expose_area (gdisp, 0, 0,
- gdisp->disp_xoffset,
- gdisp->disp_height);
- gdisplay_expose_area (gdisp, gdisp->disp_xoffset + x, 0,
- gdisp->disp_width,
- gdisp->disp_height);
- }
- }
- }
- gdisplays_flush ();
-
- /* If the shrink_wrap flag was set */
- if (shrink_wrap)
- {
- gdisplays_resize_cursor_label (gimage);
- gdisplays_shrink_wrap (gimage);
- shrink_wrap = FALSE;
- }
-
- /* let others know that we just popped an action */
- gimp_image_undo_event (gimage,
- (state == UNDO)? UNDO_POPPED : UNDO_REDO);
-
- return TRUE;
- }
- }
-
- return FALSE;
- }
-
-
- gboolean
- undo_pop (GImage *gimage)
- {
- /* Very bad idea to pop an action off the undo stack if we're in the
- * middle of a group, since the whole group won't be popped. Might
- * leave unbalanced group start marker earlier in the stack too,
- * causing much confusion when it's later reached and
- * mis-interpreted as a group start. */
- g_return_val_if_fail (gimage->pushing_undo_group == UNDO_NULL, FALSE);
-
- return pop_stack (gimage, &gimage->undo_stack, &gimage->redo_stack, UNDO);
- }
-
-
- gboolean
- undo_redo (GImage *gimage)
- {
- /* ditto for redo stack */
- g_return_val_if_fail (gimage->pushing_undo_group == UNDO_NULL, FALSE);
-
- return pop_stack (gimage, &gimage->redo_stack, &gimage->undo_stack, REDO);
- }
-
-
-
- /* Return the name of the action that would be used if undo_pop or
- * undo_redo is called, or NULL if there are no actions pushed on the
- * stack. */
- static const gchar *
- undo_get_topitem_name (GSList *stack)
- {
- Undo *object;
-
- if (!stack)
- return NULL;
-
- object = stack->data;
-
- /* For group boundaries, the type of the boundary marker is the
- * type of the whole group (but each individual action in the
- * group retains its own type so layer/channel unrefs work
- * correctly).
- */
-
- return undo_type_to_name (object->type);
- }
-
- /* Return the type of the top undo action */
- static UndoType
- undo_get_topitem_type (GSList *stack)
- {
- Undo *object;
-
- if (!stack)
- return UNDO_NULL;
-
- object = stack->data;
-
- /* For group boundaries, the type of the boundary marker is the
- * type of the whole group (but each individual action in the
- * group retains its own type so layer/channel unrefs work
- * correctly).
- */
-
- return object->type;
- }
-
-
- const gchar *
- undo_get_undo_name (GImage *gimage)
- {
- g_return_val_if_fail (gimage != NULL, NULL);
-
- /* don't want to encourage undo while a group is open */
- if (gimage->pushing_undo_group != UNDO_NULL)
- return NULL;
-
- return undo_get_topitem_name (gimage->undo_stack);
- }
-
- UndoType
- undo_get_undo_top_type (GImage *gimage)
- {
- g_return_val_if_fail (gimage != NULL, UNDO_NULL);
-
- /* don't want to encourage undo while a group is open */
- if (gimage->pushing_undo_group != UNDO_NULL)
- return UNDO_NULL;
-
- return undo_get_topitem_type (gimage->undo_stack);
- }
-
-
- const gchar *
- undo_get_redo_name (GImage *gimage)
- {
- g_return_val_if_fail (gimage != NULL, NULL);
-
- /* don't want to encourage redo while a group is open */
- if (gimage->pushing_undo_group != UNDO_NULL)
- return NULL;
-
- return undo_get_topitem_name (gimage->redo_stack);
- }
-
-
- static void
- undo_map_over_stack (GSList *stack,
- undo_map_fn fn,
- gpointer data)
- {
- gboolean in_group = FALSE;
- gint count = 0;
- Undo *object;
-
- while (stack)
- {
- object = (Undo *) stack->data;
- if (object->group_boundary)
- in_group = !in_group;
-
- /* Keep track of group length. 0 means not in group (or group
- * end marker), 1 is group start marker, >= 2 are group
- * members.
- */
- if (in_group)
- count++;
- else
- count = 0;
-
- /* Is this a group end marker or non-grouped action? */
- if (count == 0)
- {
- if (fn (undo_type_to_name (object->type), data))
- return; /* early termination option exercised */
- }
-
- stack = g_slist_next (stack);
- }
- }
-
- void
- undo_map_over_undo_stack (GImage *gimage,
- undo_map_fn fn,
- gpointer data)
- {
- /* shouldn't have group open */
- g_return_if_fail (gimage->pushing_undo_group == UNDO_NULL);
- undo_map_over_stack (gimage->undo_stack, fn, data);
- }
-
- void
- undo_map_over_redo_stack (GImage *gimage,
- undo_map_fn fn,
- gpointer data)
- {
- /* shouldn't have group open */
- g_return_if_fail (gimage->pushing_undo_group == UNDO_NULL);
- undo_map_over_stack (gimage->redo_stack, fn, data);
- }
-
-
- void
- undo_free (GImage *gimage)
- {
- undo_free_list (gimage, UNDO, gimage->undo_stack);
- undo_free_list (gimage, REDO, gimage->redo_stack);
-
- gimage->undo_stack = NULL;
- gimage->redo_stack = NULL;
- gimage->undo_bytes = 0;
- gimage->undo_levels = 0;
-
- /* If the image was dirty, but could become clean by redo-ing
- * some actions, then it should now become 'infinitely' dirty.
- * This is because we've just nuked the actions that would allow
- * the image to become clean again. The only hope for salvation
- * is to save the image now! -- austin
- */
- if (gimage->dirty < 0)
- gimage->dirty = 10000;
-
- /* The same applies to the case where the image would become clean
- * due to undo actions, but since user can't undo without an undo
- * stack, that's not so much a problem.
- */
- gimp_image_undo_event (gimage, UNDO_FREE);
- }
-
-
- /**********************/
- /* group Undo funcs */
-
- gboolean
- undo_push_group_start (GImage *gimage,
- UndoType type)
- {
- Undo *boundary_marker;
-
- if (! gimage->undo_on)
- return FALSE;
-
- /* Bad idea to push 0 as the group type, since that won't
- * be recognized as the start of the group later.
- */
- g_return_val_if_fail (type != 0, FALSE);
-
- gimage->group_count ++;
- TRC (("group_start (%s)\n", undo_type_to_name (type)));
-
- /* If we're already in a group...ignore */
- if (gimage->group_count > 1)
- return TRUE;
-
- if (gimage->redo_stack)
- {
- undo_free_list (gimage, REDO, gimage->redo_stack);
- gimage->redo_stack = NULL;
- /* If the image was dirty, but could become clean by redo-ing
- * some actions, then it should now become 'infinitely' dirty.
- * This is because we've just nuked the actions that would allow
- * the image to become clean again. The only hope for salvation
- * is to save the image now! -- austin
- */
- if (gimage->dirty < 0)
- gimage->dirty = 10000;
- }
-
- if (! undo_free_up_space (gimage))
- return FALSE;
-
- boundary_marker = undo_new (type, sizeof (Undo), FALSE);
- gimage->undo_bytes += boundary_marker->bytes;
- boundary_marker->group_boundary = TRUE;
-
- gimage->pushing_undo_group = type;
- gimage->undo_stack = g_slist_prepend (gimage->undo_stack, boundary_marker);
- gimage->undo_levels++;
-
- return TRUE;
- }
-
-
- gboolean
- undo_push_group_end (GImage *gimage)
- {
- Undo *boundary_marker;
-
- if (! gimage->undo_on)
- return FALSE;
-
- gimage->group_count --;
- TRC (("group end\n"));
-
- if (gimage->group_count == 0)
- {
- boundary_marker = undo_new (gimage->pushing_undo_group,
- sizeof (Undo), FALSE);
- boundary_marker->group_boundary = TRUE;
- gimage->undo_stack = g_slist_prepend (gimage->undo_stack,
- boundary_marker);
- gimage->undo_bytes += boundary_marker->bytes;
-
- gimage->pushing_undo_group = UNDO_NULL;
-
- /* Do it here, since undo_push doesn't emit this event while in the
- * middle of a group */
- gimp_image_undo_event (gimage, UNDO_PUSHED);
- }
-
- return TRUE;
- }
-
-
- /*********************************/
- /* Image Undo functions */
-
- typedef struct _ImageUndo ImageUndo;
-
- struct _ImageUndo
- {
- TileManager *tiles;
- GimpDrawable *drawable;
- gint x1, y1, x2, y2;
- gboolean sparse;
- };
-
-
- gboolean
- undo_push_image (GImage *gimage,
- GimpDrawable *drawable,
- gint x1,
- gint y1,
- gint x2,
- gint y2)
- {
- glong size;
- Undo *new;
- ImageUndo *image_undo;
- TileManager *tiles;
- PixelRegion srcPR, destPR;
-
- x1 = CLAMP (x1, 0, drawable_width (drawable));
- y1 = CLAMP (y1, 0, drawable_height (drawable));
- x2 = CLAMP (x2, 0, drawable_width (drawable));
- y2 = CLAMP (y2, 0, drawable_height (drawable));
-
- size = (x2 - x1) * (y2 - y1) * drawable_bytes (drawable) + sizeof (gpointer) * 2;
-
- if ((new = undo_push (gimage, size, IMAGE_UNDO, TRUE)))
- {
- image_undo = g_new (ImageUndo, 1);
-
- /* If we cannot create a new temp buf--either because our parameters are
- * degenerate or something else failed, simply return an unsuccessful push.
- */
- tiles = tile_manager_new ((x2 - x1), (y2 - y1), drawable_bytes (drawable));
- pixel_region_init (&srcPR, drawable_data (drawable),
- x1, y1, (x2 - x1), (y2 - y1), FALSE);
- pixel_region_init (&destPR, tiles,
- 0, 0, (x2 - x1), (y2 - y1), TRUE);
- copy_region (&srcPR, &destPR);
-
- /* set the image undo structure */
- image_undo->tiles = tiles;
- image_undo->drawable = drawable;
- image_undo->x1 = x1;
- image_undo->y1 = y1;
- image_undo->x2 = x2;
- image_undo->y2 = y2;
- image_undo->sparse = FALSE;
-
- new->data = image_undo;
- new->pop_func = undo_pop_image;
- new->free_func = undo_free_image;
-
- return TRUE;
- }
- else
- return FALSE;
- }
-
-
- gboolean
- undo_push_image_mod (GImage *gimage,
- GimpDrawable *drawable,
- gint x1,
- gint y1,
- gint x2,
- gint y2,
- gpointer tiles_ptr,
- gboolean sparse)
- {
- glong size;
- gint dwidth, dheight;
- Undo *new;
- ImageUndo *image_undo;
- TileManager *tiles;
-
- if (! tiles_ptr)
- return FALSE;
-
- dwidth = drawable_width (drawable);
- dheight = drawable_height (drawable);
-
- x1 = CLAMP (x1, 0, dwidth);
- y1 = CLAMP (y1, 0, dheight);
- x2 = CLAMP (x2, 0, dwidth);
- y2 = CLAMP (y2, 0, dheight);
-
- tiles = (TileManager *) tiles_ptr;
- size = tiles->width * tiles->height *
- tiles->bpp + sizeof (gpointer) * 2;
-
- if ((new = undo_push (gimage, size, IMAGE_MOD_UNDO, TRUE)))
- {
- image_undo = g_new (ImageUndo, 1);
- image_undo->tiles = tiles;
- image_undo->drawable = drawable;
- image_undo->x1 = x1;
- image_undo->y1 = y1;
- image_undo->x2 = x2;
- image_undo->y2 = y2;
- image_undo->sparse = sparse;
-
- new->data = image_undo;
- new->pop_func = undo_pop_image;
- new->free_func = undo_free_image;
-
- return TRUE;
- }
- else
- {
- tile_manager_destroy (tiles);
- return FALSE;
- }
- }
-
-
- static gboolean
- undo_pop_image (GImage *gimage,
- UndoState state,
- UndoType type,
- gpointer image_undo_ptr)
- {
- ImageUndo *image_undo;
- TileManager *tiles;
- PixelRegion PR1, PR2;
- gint x, y;
- gint w, h;
-
- image_undo = (ImageUndo *) image_undo_ptr;
- tiles = image_undo->tiles;
-
- /* some useful values */
- x = image_undo->x1;
- y = image_undo->y1;
-
- if (image_undo->sparse == FALSE)
- {
- w = tiles->width;
- h = tiles->height;
-
- pixel_region_init (&PR1, tiles,
- 0, 0, w, h, TRUE);
- pixel_region_init (&PR2, drawable_data (image_undo->drawable),
- x, y, w, h, TRUE);
-
- /* swap the regions */
- swap_region (&PR1, &PR2);
- }
- else
- {
- int i, j;
- Tile *src_tile;
- Tile *dest_tile;
-
- w = image_undo->x2 - image_undo->x1;
- h = image_undo->y2 - image_undo->y1;
-
- for (i = y; i < image_undo->y2; i += (TILE_HEIGHT - (i % TILE_HEIGHT)))
- {
- for (j = x; j < image_undo->x2; j += (TILE_WIDTH - (j % TILE_WIDTH)))
- {
- src_tile = tile_manager_get_tile (tiles, j, i, FALSE, FALSE);
- if (tile_is_valid (src_tile) == TRUE)
- {
- /* swap tiles, not pixels! */
-
- src_tile = tile_manager_get_tile (tiles, j, i, TRUE, FALSE /* TRUE */);
- dest_tile = tile_manager_get_tile (drawable_data (image_undo->drawable), j, i, TRUE, FALSE /* TRUE */);
-
- tile_manager_map_tile (tiles, j, i, dest_tile);
- tile_manager_map_tile (drawable_data (image_undo->drawable), j, i, src_tile);
- #if 0
- swap_pixels (tile_data_pointer (src_tile, 0, 0),
- tile_data_pointer (dest_tile, 0, 0),
- tile_size (src_tile));
- #endif
-
- tile_release (dest_tile, FALSE /* TRUE */);
- tile_release (src_tile, FALSE /* TRUE */);
- }
- }
- }
- }
-
- drawable_update (image_undo->drawable, x, y, w, h);
-
- return TRUE;
- }
-
-
- static void
- undo_free_image (UndoState state,
- UndoType type,
- gpointer image_undo_ptr)
- {
- ImageUndo *image_undo;
-
- image_undo = (ImageUndo *) image_undo_ptr;
-
- tile_manager_destroy (image_undo->tiles);
- g_free (image_undo);
- }
-
-
- /******************************/
- /* Mask Undo functions */
-
- gboolean
- undo_push_mask (GImage *gimage,
- gpointer mask_ptr)
- {
- Undo *new;
- MaskUndo *mask_undo;
- gint size;
-
- mask_undo = (MaskUndo *) mask_ptr;
-
- if (mask_undo->tiles)
- size = mask_undo->tiles->width * mask_undo->tiles->height;
- else
- size = 0;
-
- if ((new = undo_push (gimage, size, MASK_UNDO, FALSE)))
- {
- new->data = mask_undo;
- new->pop_func = undo_pop_mask;
- new->free_func = undo_free_mask;
-
- return TRUE;
- }
- else
- {
- if (mask_undo->tiles)
- tile_manager_destroy (mask_undo->tiles);
- g_free (mask_undo);
- return FALSE;
- }
- }
-
-
- static gboolean
- undo_pop_mask (GImage *gimage,
- UndoState state,
- UndoType type,
- gpointer mask_ptr)
- {
- MaskUndo *mask_undo;
- TileManager *new_tiles;
- Channel *sel_mask;
- PixelRegion srcPR, destPR;
- gint selection;
- gint x1, y1, x2, y2;
- gint width, height;
- guchar empty = 0;
-
- width = height = 0;
-
- mask_undo = (MaskUndo *) mask_ptr;
-
- /* save current selection mask */
- sel_mask = gimage_get_mask (gimage);
- selection = channel_bounds (sel_mask, &x1, &y1, &x2, &y2);
- pixel_region_init (&srcPR, GIMP_DRAWABLE (sel_mask)->tiles,
- x1, y1, (x2 - x1), (y2 - y1), FALSE);
-
- if (selection)
- {
- new_tiles = tile_manager_new (srcPR.w, srcPR.h, 1);
- pixel_region_init (&destPR, new_tiles,
- 0, 0, srcPR.w, srcPR.h, TRUE);
-
- copy_region (&srcPR, &destPR);
-
- pixel_region_init (&srcPR, GIMP_DRAWABLE (sel_mask)->tiles,
- x1, y1, (x2 - x1), (y2 - y1), TRUE);
- color_region (&srcPR, &empty);
- }
- else
- new_tiles = NULL;
-
- if (mask_undo->tiles)
- {
- width = mask_undo->tiles->width;
- height = mask_undo->tiles->height;
- pixel_region_init (&srcPR, mask_undo->tiles,
- 0, 0, width, height, FALSE);
- pixel_region_init (&destPR, GIMP_DRAWABLE (sel_mask)->tiles,
- mask_undo->x, mask_undo->y, width, height, TRUE);
- copy_region (&srcPR, &destPR);
-
- tile_manager_destroy (mask_undo->tiles);
- }
-
- /* invalidate the current bounds and boundary of the mask */
- gimage_mask_invalidate (gimage);
-
- if (mask_undo->tiles)
- {
- sel_mask->empty = FALSE;
- sel_mask->x1 = mask_undo->x;
- sel_mask->y1 = mask_undo->y;
- sel_mask->x2 = mask_undo->x + width;
- sel_mask->y2 = mask_undo->y + height;
- }
- else
- {
- sel_mask->empty = TRUE;
- sel_mask->x1 = 0;
- sel_mask->y1 = 0;
- sel_mask->x2 = GIMP_DRAWABLE (sel_mask)->width;
- sel_mask->y2 = GIMP_DRAWABLE (sel_mask)->height;
- }
-
- /* set the new mask undo parameters */
- mask_undo->tiles = new_tiles;
- mask_undo->x = x1;
- mask_undo->y = y1;
-
- /* we know the bounds */
- sel_mask->bounds_known = TRUE;
-
- /* if there is a "by color" selection dialog active
- * for this gimage's mask, send it an update notice
- */
- if (gimage->by_color_select)
- by_color_select_initialize_by_image (gimage);
-
- return TRUE;
- }
-
-
- static void
- undo_free_mask (UndoState state,
- UndoType type,
- gpointer mask_ptr)
- {
- MaskUndo *mask_undo;
-
- mask_undo = (MaskUndo *) mask_ptr;
- if (mask_undo->tiles)
- tile_manager_destroy (mask_undo->tiles);
- g_free (mask_undo);
- }
-
-
- /***************************************/
- /* Layer displacement Undo functions */
-
- typedef struct _LayerDisplayUndo LayerDisplaceUndo;
-
- struct _LayerDisplayUndo
- {
- gint info[3];
- PathUndo *path_undo;
- };
-
- gboolean
- undo_push_layer_displace (GImage *gimage,
- GimpLayer *layer)
- {
- Undo *new;
- LayerDisplaceUndo *ldu;
-
- if ((new = undo_push (gimage, 12, LAYER_DISPLACE_UNDO, TRUE)))
- {
- new->data = g_new (LayerDisplaceUndo, 1);
- new->pop_func = undo_pop_layer_displace;
- new->free_func = undo_free_layer_displace;
-
- ldu = (LayerDisplaceUndo *) new->data;
- ldu->info[0] = drawable_ID (GIMP_DRAWABLE (layer));
- ldu->info[1] = GIMP_DRAWABLE (layer)->offset_x;
- ldu->info[2] = GIMP_DRAWABLE (layer)->offset_y;
- ldu->path_undo = path_transform_start_undo (gimage);
-
- return TRUE;
- }
- else
- return FALSE;
- }
-
-
- static gboolean
- undo_pop_layer_displace (GImage *gimage,
- UndoState state,
- UndoType type,
- gpointer info_ptr)
- {
- Layer *layer;
- gint old_offsets[2];
- LayerDisplaceUndo *ldu;
-
- ldu = (LayerDisplaceUndo *) info_ptr;
- layer = layer_get_ID (ldu->info[0]);
- if (layer)
- {
- old_offsets[0] = GIMP_DRAWABLE (layer)->offset_x;
- old_offsets[1] = GIMP_DRAWABLE (layer)->offset_y;
- drawable_update (GIMP_DRAWABLE (layer), 0, 0,
- GIMP_DRAWABLE (layer)->width,
- GIMP_DRAWABLE (layer)->height);
-
- GIMP_DRAWABLE (layer)->offset_x = ldu->info[1];
- GIMP_DRAWABLE (layer)->offset_y = ldu->info[2];
- drawable_update (GIMP_DRAWABLE (layer), 0, 0,
- GIMP_DRAWABLE (layer)->width,
- GIMP_DRAWABLE (layer)->height);
-
- if (layer->mask)
- {
- GIMP_DRAWABLE (layer->mask)->offset_x = ldu->info[1];
- GIMP_DRAWABLE (layer->mask)->offset_y = ldu->info[2];
- drawable_update (GIMP_DRAWABLE (layer->mask), 0, 0,
- GIMP_DRAWABLE (layer->mask)->width,
- GIMP_DRAWABLE (layer->mask)->height);
- }
-
-
- /* invalidate the selection boundary because of a layer modification */
- layer_invalidate_boundary (layer);
-
- ldu->info[1] = old_offsets[0];
- ldu->info[2] = old_offsets[1];
-
- /* Now undo paths bits */
- if (ldu->path_undo)
- path_transform_do_undo (gimage, ldu->path_undo);
-
- return TRUE;
- }
- else
- return FALSE;
- }
-
-
- static void
- undo_free_layer_displace (UndoState state,
- UndoType type,
- gpointer info_ptr)
- {
- LayerDisplaceUndo * ldu;
-
- ldu = (LayerDisplaceUndo *) info_ptr;
-
- /* Free mem held for paths undo stuff */
- if (ldu->path_undo)
- path_transform_free_undo (ldu->path_undo);
-
- g_free (info_ptr);
- }
-
-
- /*********************************/
- /* Transform Undo */
-
- gboolean
- undo_push_transform (GImage *gimage,
- gpointer tu_ptr)
- {
- Undo *new;
-
- if ((new = undo_push (gimage,
- sizeof (TransformUndo), TRANSFORM_UNDO, FALSE)))
- {
- new->data = tu_ptr;
- new->pop_func = undo_pop_transform;
- new->free_func = undo_free_transform;
-
- return TRUE;
- }
- else
- {
- g_free (tu_ptr);
- return FALSE;
- }
- }
-
-
- static gboolean
- undo_pop_transform (GImage *gimage,
- UndoState state,
- UndoType type,
- gpointer tu_ptr)
- {
- TransformCore *tc;
- TransformUndo *tu;
- TileManager *temp;
- gdouble d;
- gint i;
-
- /* Can't have ANY tool selected - maybe a plugin running */
- if (active_tool == NULL)
- return TRUE;
-
- tc = (TransformCore *) active_tool->private;
- tu = (TransformUndo *) tu_ptr;
-
- path_transform_do_undo (gimage,tu->path_undo);
-
- /* only pop if the active tool is the tool that pushed this undo */
- if (tu->tool_ID != active_tool->ID)
- return TRUE;
-
- /* swap the transformation information arrays */
- for (i = 0; i < TRAN_INFO_SIZE; i++)
- {
- d = tu->trans_info[i];
- tu->trans_info[i] = tc->trans_info[i];
- tc->trans_info[i] = d;
- }
-
- /* swap the original buffer--the source buffer for repeated transforms
- */
- temp = tu->original;
- tu->original = tc->original;
- tc->original = temp;
-
- /* If we're re-implementing the first transform, reactivate tool */
- if (state == REDO && tc->original)
- {
- active_tool->state = ACTIVE;
- draw_core_resume (tc->core, active_tool);
- }
-
- return TRUE;
- }
-
-
- static void
- undo_free_transform (UndoState state,
- UndoType type,
- gpointer tu_ptr)
- {
- TransformUndo * tu;
-
- tu = (TransformUndo *) tu_ptr;
- if (tu->original)
- tile_manager_destroy (tu->original);
- path_transform_free_undo (tu->path_undo);
- g_free (tu);
- }
-
-
- /*********************************/
- /* Paint Undo */
-
- gboolean
- undo_push_paint (GImage *gimage,
- gpointer pu_ptr)
- {
- Undo *new;
-
- if ((new = undo_push (gimage,
- sizeof (PaintUndo), PAINT_UNDO, FALSE)))
- {
- new->data = pu_ptr;
- new->pop_func = undo_pop_paint;
- new->free_func = undo_free_paint;
-
- return TRUE;
- }
- else
- {
- g_free (pu_ptr);
- return FALSE;
- }
- }
-
-
- static gboolean
- undo_pop_paint (GImage *gimage,
- UndoState state,
- UndoType type,
- gpointer pu_ptr)
- {
- PaintCore *pc;
- PaintUndo *pu;
- gdouble tmp;
-
- /* Can't have ANY tool selected - maybe a plugin running */
- if (active_tool == NULL)
- return TRUE;
-
- pc = (PaintCore *) active_tool->private;
- pu = (PaintUndo *) pu_ptr;
-
- /* only pop if the active tool is the tool that pushed this undo */
- if (pu->tool_ID != active_tool->ID)
- return TRUE;
-
- /* swap the paint core information */
- tmp = pc->lastx;
- pc->lastx = pu->lastx;
- pu->lastx = tmp;
-
- tmp = pc->lasty;
- pc->lasty = pu->lasty;
- pu->lasty = tmp;
-
- tmp = pc->lastpressure;
- pc->lastpressure = pu->lastpressure;
- pu->lastpressure = tmp;
-
- tmp = pc->lastxtilt;
- pc->lastxtilt = pu->lastxtilt;
- pu->lastxtilt = tmp;
-
- tmp = pc->lastytilt;
- pc->lastytilt = pu->lastytilt;
- pu->lastytilt = tmp;
-
- return TRUE;
- }
-
-
- static void
- undo_free_paint (UndoState state,
- UndoType type,
- gpointer pu_ptr)
- {
- PaintUndo *pu;
-
- pu = (PaintUndo *) pu_ptr;
- g_free (pu);
- }
-
-
- /*********************************/
- /* New Layer Undo */
-
- gboolean
- undo_push_layer (GImage *gimage,
- UndoType type,
- gpointer lu_ptr)
- {
- LayerUndo *lu;
- Undo *new;
- gint size;
-
- lu = (LayerUndo *) lu_ptr;
-
- g_return_val_if_fail (type == LAYER_ADD_UNDO ||
- type == LAYER_REMOVE_UNDO,
- FALSE);
-
- size = layer_size (lu->layer) + sizeof (LayerUndo);
-
- if ((new = undo_push (gimage, size, type, TRUE)))
- {
- new->data = lu_ptr;
- new->pop_func = undo_pop_layer;
- new->free_func = undo_free_layer;
-
- return TRUE;
- }
- else
- {
- /* if this is a remove layer, delete the layer */
- if (type == LAYER_REMOVE_UNDO)
- layer_unref (lu->layer);
- g_free (lu);
- return FALSE;
- }
- }
-
-
- static gboolean
- undo_pop_layer (GImage *gimage,
- UndoState state,
- UndoType type,
- gpointer lu_ptr)
- {
- LayerUndo *lu;
-
- lu = (LayerUndo *) lu_ptr;
-
- /* remove layer */
- if ((state == UNDO && type == LAYER_ADD_UNDO) ||
- (state == REDO && type == LAYER_REMOVE_UNDO))
- {
- /* record the current position */
- lu->prev_position = gimage_get_layer_index (gimage, lu->layer);
- /* set the previous layer */
- gimage_set_active_layer (gimage, lu->prev_layer);
-
- /* remove the layer */
- gimage->layers = g_slist_remove (gimage->layers, lu->layer);
- gimage->layer_stack = g_slist_remove (gimage->layer_stack, lu->layer);
-
- /* reset the gimage values */
- if (layer_is_floating_sel (lu->layer))
- {
- gimage->floating_sel = NULL;
- /* reset the old drawable */
- floating_sel_reset (lu->layer);
- }
-
- drawable_update (GIMP_DRAWABLE (lu->layer), 0, 0,
- GIMP_DRAWABLE (lu->layer)->width,
- GIMP_DRAWABLE (lu->layer)->height);
- }
- /* restore layer */
- else
- {
- /* record the active layer */
- lu->prev_layer = gimage->active_layer;
-
- /* hide the current selection--for all views */
- if (gimage->active_layer != NULL)
- layer_invalidate_boundary ((gimage->active_layer));
-
- /* if this is a floating selection, set the fs pointer */
- if (layer_is_floating_sel (lu->layer))
- gimage->floating_sel = lu->layer;
-
- /* add the new layer */
- gimage->layers = g_slist_insert (gimage->layers, lu->layer,
- lu->prev_position);
- gimage->layer_stack = g_slist_prepend (gimage->layer_stack, lu->layer);
- gimage->active_layer = lu->layer;
-
- drawable_update (GIMP_DRAWABLE (lu->layer), 0, 0,
- GIMP_DRAWABLE (lu->layer)->width,
- GIMP_DRAWABLE (lu->layer)->height);
- }
-
- return TRUE;
- }
-
-
- static void
- undo_free_layer (UndoState state,
- UndoType type,
- gpointer lu_ptr)
- {
- LayerUndo *lu;
-
- lu = (LayerUndo *) lu_ptr;
-
- /* Only free the layer if we're freeing from the redo
- * stack and it's a layer add, or if we're freeing from
- * the undo stack and it's a layer remove
- */
- if ((state == REDO && type == LAYER_ADD_UNDO) ||
- (state == UNDO && type == LAYER_REMOVE_UNDO))
- layer_unref (lu->layer);
-
- g_free (lu);
- }
-
-
- /*********************************/
- /* Layer Mod Undo */
-
- gboolean
- undo_push_layer_mod (GImage *gimage,
- gpointer layer_ptr)
- {
- Layer *layer;
- Undo *new;
- TileManager *tiles;
- gpointer *data;
- gint size;
-
- layer = (Layer *) layer_ptr;
-
- tiles = GIMP_DRAWABLE (layer)->tiles;
- tiles->x = GIMP_DRAWABLE (layer)->offset_x;
- tiles->y = GIMP_DRAWABLE (layer)->offset_y;
- size = (GIMP_DRAWABLE (layer)->width * GIMP_DRAWABLE (layer)->height *
- GIMP_DRAWABLE (layer)->bytes + sizeof (gpointer) * 3);
-
- if ((new = undo_push (gimage, size, LAYER_MOD, TRUE)))
- {
- data = g_new (gpointer, 3);
- new->data = data;
- new->pop_func = undo_pop_layer_mod;
- new->free_func = undo_free_layer_mod;
-
- data[0] = layer_ptr;
- data[1] = (gpointer) tiles;
- data[2] = (gpointer) ((glong) GIMP_DRAWABLE (layer)->type);
-
- return TRUE;
- }
- else
- {
- tile_manager_destroy (tiles);
- return FALSE;
- }
- }
-
-
- static gboolean
- undo_pop_layer_mod (GImage *gimage,
- UndoState state,
- UndoType type,
- gpointer data_ptr)
- {
- gpointer *data;
- gint layer_type;
- TileManager *tiles;
- TileManager *temp;
- Layer *layer;
-
- data = (gpointer *) data_ptr;
- layer = (Layer *) data[0];
-
- tiles = (TileManager *) data[1];
-
- /* Issue the first update */
- gdisplays_update_area (gimage,
- GIMP_DRAWABLE (layer)->offset_x,
- GIMP_DRAWABLE (layer)->offset_y,
- GIMP_DRAWABLE (layer)->width,
- GIMP_DRAWABLE (layer)->height);
-
- /* Create a tile manager to store the current layer contents */
- temp = GIMP_DRAWABLE (layer)->tiles;
- temp->x = GIMP_DRAWABLE (layer)->offset_x;
- temp->y = GIMP_DRAWABLE (layer)->offset_y;
- layer_type = (glong) data[2];
- data[2] = (gpointer) ((glong) GIMP_DRAWABLE (layer)->type);
-
- /* restore the layer's data */
- GIMP_DRAWABLE (layer)->tiles = tiles;
- GIMP_DRAWABLE (layer)->offset_x = tiles->x;
- GIMP_DRAWABLE (layer)->offset_y = tiles->y;
- GIMP_DRAWABLE (layer)->width = tiles->width;
- GIMP_DRAWABLE (layer)->height = tiles->height;
- GIMP_DRAWABLE (layer)->bytes = tiles->bpp;
- GIMP_DRAWABLE (layer)->type = layer_type;
- GIMP_DRAWABLE (layer)->has_alpha = GIMP_IMAGE_TYPE_HAS_ALPHA (layer_type);
-
- if (layer->mask)
- {
- GIMP_DRAWABLE (layer->mask)->offset_x = tiles->x;
- GIMP_DRAWABLE (layer->mask)->offset_y = tiles->y;
- }
-
- /* If the layer type changed, update the gdisplay titles */
- if (GIMP_DRAWABLE (layer)->type != (glong) data[2])
- gdisplays_update_title (GIMP_DRAWABLE (layer)->gimage);
-
- /* Set the new tile manager */
- data[1] = temp;
-
- /* Issue the second update */
- drawable_update (GIMP_DRAWABLE (layer), 0, 0,
- GIMP_DRAWABLE (layer)->width,
- GIMP_DRAWABLE(layer)->height);
-
- return TRUE;
- }
-
-
- static void
- undo_free_layer_mod (UndoState state,
- UndoType type,
- gpointer data_ptr)
- {
- gpointer *data;
-
- data = (gpointer *) data_ptr;
- tile_manager_destroy ((TileManager *) data[1]);
- g_free (data);
- }
-
-
- /*********************************/
- /* Layer Mask Undo */
-
- gboolean
- undo_push_layer_mask (GImage *gimage,
- UndoType type,
- gpointer lmu_ptr)
- {
- LayerMaskUndo *lmu;
- Undo *new;
- gint size;
-
- lmu = (LayerMaskUndo *) lmu_ptr;
-
- g_return_val_if_fail (type == LAYER_MASK_ADD_UNDO ||
- type == LAYER_MASK_REMOVE_UNDO,
- FALSE);
-
- size = channel_size (GIMP_CHANNEL (lmu->mask)) + sizeof (LayerMaskUndo);
-
- if ((new = undo_push (gimage, size, type, TRUE)))
- {
- new->data = lmu_ptr;
- new->pop_func = undo_pop_layer_mask;
- new->free_func = undo_free_layer_mask;
-
- return TRUE;
- }
- else
- {
- if (type == LAYER_MASK_REMOVE_UNDO)
- layer_mask_delete (lmu->mask);
- g_free (lmu);
- return FALSE;
- }
- }
-
-
- static gboolean
- undo_pop_layer_mask (GImage *gimage,
- UndoState state,
- UndoType type,
- gpointer lmu_ptr)
- {
- LayerMaskUndo *lmu;
-
- lmu = (LayerMaskUndo *) lmu_ptr;
-
- /* remove layer mask */
- if ((state == UNDO && type == LAYER_MASK_ADD_UNDO) ||
- (state == REDO && type == LAYER_MASK_REMOVE_UNDO))
- {
- /* remove the layer mask */
- lmu->layer->mask = NULL;
- lmu->layer->apply_mask = FALSE;
- lmu->layer->edit_mask = FALSE;
- lmu->layer->show_mask = FALSE;
-
- /* if this is redoing a remove operation &
- * the mode of application was DISCARD or
- * this is undoing an add...
- */
- if ((state == REDO && lmu->mode == DISCARD) || state == UNDO)
- drawable_update (GIMP_DRAWABLE (lmu->layer), 0, 0,
- GIMP_DRAWABLE (lmu->layer)->width,
- GIMP_DRAWABLE (lmu->layer)->height);
- }
- /* restore layer */
- else
- {
- lmu->layer->mask = lmu->mask;
- lmu->layer->apply_mask = lmu->apply_mask;
- lmu->layer->edit_mask = lmu->edit_mask;
- lmu->layer->show_mask = lmu->show_mask;
-
- gimage_set_layer_mask_edit (gimage, lmu->layer, lmu->edit_mask);
-
- /* if this is undoing a remove operation &
- * the mode of application was DISCARD or
- * this is redoing an add
- */
- if ((state == UNDO && lmu->mode == DISCARD) || state == REDO)
- drawable_update (GIMP_DRAWABLE (lmu->layer), 0, 0,
- GIMP_DRAWABLE (lmu->layer)->width,
- GIMP_DRAWABLE (lmu->layer)->height);
- }
-
- return TRUE;
- }
-
-
- static void
- undo_free_layer_mask (UndoState state,
- UndoType type,
- gpointer lmu_ptr)
- {
- LayerMaskUndo *lmu;
-
- lmu = (LayerMaskUndo *) lmu_ptr;
-
- /* Only free the layer mask if we're freeing from the redo
- * stack and it's a layer add, or if we're freeing from
- * the undo stack and it's a layer remove
- */
- if ((state == REDO && type == LAYER_MASK_ADD_UNDO) ||
- (state == UNDO && type == LAYER_MASK_REMOVE_UNDO))
- layer_mask_delete (lmu->mask);
-
- g_free (lmu);
- }
-
-
- /*********************************/
- /* New Channel Undo */
-
- gboolean
- undo_push_channel (GImage *gimage,
- UndoType type,
- gpointer cu_ptr)
- {
- ChannelUndo *cu;
- Undo *new;
- gint size;
-
- g_return_val_if_fail (type == CHANNEL_ADD_UNDO ||
- type == CHANNEL_REMOVE_UNDO,
- FALSE);
-
- cu = (ChannelUndo *) cu_ptr;
-
- size = channel_size (cu->channel) + sizeof (ChannelUndo);
-
- if ((new = undo_push (gimage, size, type, TRUE)))
- {
- new->data = cu_ptr;
- new->pop_func = undo_pop_channel;
- new->free_func = undo_free_channel;
-
- return TRUE;
- }
- else
- {
- if (type == CHANNEL_REMOVE_UNDO)
- channel_delete (cu->channel);
- g_free (cu);
- return FALSE;
- }
- }
-
-
- static gboolean
- undo_pop_channel (GImage *gimage,
- UndoState state,
- UndoType type,
- gpointer cu_ptr)
- {
- ChannelUndo *cu;
-
- cu = (ChannelUndo *) cu_ptr;
-
- /* remove channel */
- if ((state == UNDO && type == CHANNEL_ADD_UNDO) ||
- (state == REDO && type == CHANNEL_REMOVE_UNDO))
- {
- /* record the current position */
- cu->prev_position = gimage_get_channel_index (gimage, cu->channel);
-
- /* remove the channel */
- gimage->channels = g_slist_remove (gimage->channels, cu->channel);
-
- /* set the previous channel */
- gimage_set_active_channel (gimage, cu->prev_channel);
-
- /* update the area */
- drawable_update (GIMP_DRAWABLE (cu->channel), 0, 0,
- GIMP_DRAWABLE (cu->channel)->width,
- GIMP_DRAWABLE (cu->channel)->height);
- }
- /* restore channel */
- else
- {
- /* record the active channel */
- cu->prev_channel = gimage->active_channel;
-
- /* add the new channel */
- gimage->channels = g_slist_insert (gimage->channels, cu->channel,
- cu->prev_position);
-
- /* set the new channel */
- gimage_set_active_channel (gimage, cu->channel);
-
- /* update the area */
- drawable_update (GIMP_DRAWABLE (cu->channel), 0, 0,
- GIMP_DRAWABLE (cu->channel)->width,
- GIMP_DRAWABLE (cu->channel)->height);
- }
-
- return TRUE;
- }
-
-
- static void
- undo_free_channel (UndoState state,
- UndoType type,
- gpointer cu_ptr)
- {
- ChannelUndo *cu;
-
- cu = (ChannelUndo *) cu_ptr;
-
- /* Only free the channel if we're freeing from the redo
- * stack and it's a channel add, or if we're freeing from
- * the undo stack and it's a channel remove
- */
- if ((state == REDO && type == CHANNEL_ADD_UNDO) ||
- (state == UNDO && type == CHANNEL_REMOVE_UNDO))
- channel_delete (cu->channel);
-
- g_free (cu);
- }
-
-
-
- /*********************************/
- /* Channel Mod Undo */
-
- gboolean
- undo_push_channel_mod (GImage *gimage,
- gpointer channel_ptr)
- {
- Channel *channel;
- TileManager *tiles;
- Undo *new;
- gpointer *data;
- gint size;
-
- channel = (Channel *) channel_ptr;
-
- tiles = GIMP_DRAWABLE (channel)->tiles;
- size = GIMP_DRAWABLE (channel)->width * GIMP_DRAWABLE (channel)->height +
- sizeof (gpointer) * 2;
-
- if ((new = undo_push (gimage, size, CHANNEL_MOD, TRUE)))
- {
- data = g_new (gpointer, 2);
- new->data = data;
- new->pop_func = undo_pop_channel_mod;
- new->free_func = undo_free_channel_mod;
-
- data[0] = channel_ptr;
- data[1] = (gpointer) tiles;
-
- return TRUE;
- }
- else
- {
- tile_manager_destroy (tiles);
- return FALSE;
- }
- }
-
-
- static gboolean
- undo_pop_channel_mod (GImage *gimage,
- UndoState state,
- UndoType type,
- gpointer data_ptr)
- {
- gpointer *data;
- TileManager *tiles;
- TileManager *temp;
- Channel *channel;
-
- data = (gpointer *) data_ptr;
- channel = (Channel *) data[0];
-
- tiles = (TileManager *) data[1];
-
- /* Issue the first update */
- drawable_update (GIMP_DRAWABLE (channel), 0, 0,
- GIMP_DRAWABLE (channel)->width,
- GIMP_DRAWABLE (channel)->height);
-
- temp = GIMP_DRAWABLE (channel)->tiles;
- GIMP_DRAWABLE (channel)->tiles = tiles;
- GIMP_DRAWABLE (channel)->width = tiles->width;
- GIMP_DRAWABLE (channel)->height = tiles->height;
- GIMP_CHANNEL (channel)->bounds_known = FALSE; /* #4840. set to False because bounds
- reflect previous tile set */
-
- /* Set the new buffer */
- data[1] = temp;
-
- /* Issue the second update */
- drawable_update (GIMP_DRAWABLE (channel), 0, 0,
- GIMP_DRAWABLE (channel)->width,
- GIMP_DRAWABLE (channel)->height);
-
- return TRUE;
- }
-
-
- static void
- undo_free_channel_mod (UndoState state,
- UndoType type,
- gpointer data_ptr)
- {
- gpointer *data;
-
- data = (gpointer *) data_ptr;
- tile_manager_destroy ((TileManager *) data[1]);
- g_free (data);
- }
-
-
- /**************************************/
- /* Floating Selection to Layer Undo */
-
- gboolean
- undo_push_fs_to_layer (GImage *gimage,
- gpointer fsu_ptr)
- {
- FStoLayerUndo *fsu;
- Undo *new;
-
- fsu = (FStoLayerUndo *) fsu_ptr;
-
- if ((new = undo_push (gimage,
- sizeof (FStoLayerUndo), FS_TO_LAYER_UNDO, TRUE)))
- {
- new->data = fsu_ptr;
- new->pop_func = undo_pop_fs_to_layer;
- new->free_func = undo_free_fs_to_layer;
-
- return TRUE;
- }
- else
- {
- tile_manager_destroy (fsu->layer->fs.backing_store);
- g_free (fsu);
- return FALSE;
- }
- }
-
-
- static gboolean
- undo_pop_fs_to_layer (GImage *gimage,
- UndoState state,
- UndoType type,
- gpointer fsu_ptr)
- {
- FStoLayerUndo *fsu;
-
- fsu = (FStoLayerUndo *) fsu_ptr;
-
- switch (state)
- {
- case UNDO:
- /* Update the preview for the floating sel */
- gimp_drawable_invalidate_preview (GIMP_DRAWABLE (fsu->layer), TRUE);
-
- fsu->layer->fs.drawable = fsu->drawable;
- gimage->active_layer = fsu->layer;
- gimage->floating_sel = fsu->layer;
-
- /* restore the contents of the drawable */
- floating_sel_store (fsu->layer,
- GIMP_DRAWABLE (fsu->layer)->offset_x,
- GIMP_DRAWABLE (fsu->layer)->offset_y,
- GIMP_DRAWABLE (fsu->layer)->width,
- GIMP_DRAWABLE (fsu->layer)->height);
- fsu->layer->fs.initial = TRUE;
-
- /* clear the selection */
- layer_invalidate_boundary (fsu->layer);
-
- /* Update the preview for the gimage and underlying drawable */
- gimp_drawable_invalidate_preview (GIMP_DRAWABLE (fsu->layer), TRUE);
- break;
-
- case REDO:
- /* restore the contents of the drawable */
- floating_sel_restore (fsu->layer,
- GIMP_DRAWABLE (fsu->layer)->offset_x,
- GIMP_DRAWABLE (fsu->layer)->offset_y,
- GIMP_DRAWABLE (fsu->layer)->width,
- GIMP_DRAWABLE (fsu->layer)->height);
-
- /* Update the preview for the gimage and underlying drawable */
- gimp_drawable_invalidate_preview (GIMP_DRAWABLE (fsu->layer), TRUE);
-
- /* clear the selection */
- layer_invalidate_boundary (fsu->layer);
-
- /* update the pointers */
- fsu->layer->fs.drawable = NULL;
- gimage->floating_sel = NULL;
-
- /* Update the fs drawable */
- gimp_drawable_invalidate_preview (GIMP_DRAWABLE (fsu->layer), TRUE);
- break;
- }
-
- return TRUE;
- }
-
-
- static void
- undo_free_fs_to_layer (UndoState state,
- UndoType type,
- gpointer fsu_ptr)
- {
- FStoLayerUndo *fsu;
-
- fsu = (FStoLayerUndo *) fsu_ptr;
-
- if (state == UNDO)
- tile_manager_destroy (fsu->layer->fs.backing_store);
- g_free (fsu);
- }
-
-
- /***********************************/
- /* Floating Selection Rigor Undo */
-
- gboolean
- undo_push_fs_rigor (GImage *gimage,
- gint layer_ID)
- {
- Undo *new;
-
- if ((new = undo_push (gimage,
- sizeof (gint32), FS_RIGOR, FALSE)))
- {
- new->data = g_new (gint32, 1);
- new->pop_func = undo_pop_fs_rigor;
- new->free_func = undo_free_fs_rigor;
-
- *((gint32 *) new->data) = layer_ID;
-
- return TRUE;
- }
- else
- return FALSE;
- }
-
-
- static gboolean
- undo_pop_fs_rigor (GImage *gimage,
- UndoState state,
- UndoType type,
- gpointer layer_ptr)
- {
- gint32 layer_ID;
- Layer *floating_layer;
-
- layer_ID = *((gint32 *) layer_ptr);
-
- if ((floating_layer = layer_get_ID (layer_ID)) == NULL)
- return FALSE;
-
- if (! layer_is_floating_sel (floating_layer))
- return FALSE;
-
- switch (state)
- {
- case UNDO:
- /* restore the contents of drawable the floating layer is attached to */
- if (floating_layer->fs.initial == FALSE)
- floating_sel_restore (floating_layer,
- GIMP_DRAWABLE (floating_layer)->offset_x,
- GIMP_DRAWABLE (floating_layer)->offset_y,
- GIMP_DRAWABLE (floating_layer)->width,
- GIMP_DRAWABLE (floating_layer)->height);
- floating_layer->fs.initial = TRUE;
- break;
-
- case REDO:
- /* store the affected area from the drawable in the backing store */
- floating_sel_store (floating_layer,
- GIMP_DRAWABLE (floating_layer)->offset_x,
- GIMP_DRAWABLE (floating_layer)->offset_y,
- GIMP_DRAWABLE (floating_layer)->width,
- GIMP_DRAWABLE (floating_layer)->height);
- floating_layer->fs.initial = TRUE;
- break;
- }
-
- return TRUE;
- }
-
-
- static void
- undo_free_fs_rigor (UndoState state,
- UndoType type,
- gpointer layer_ptr)
- {
- g_free (layer_ptr);
- }
-
-
- /***********************************/
- /* Floating Selection Relax Undo */
-
- gboolean
- undo_push_fs_relax (GImage *gimage,
- gint32 layer_ID)
- {
- Undo *new;
-
- if ((new = undo_push (gimage,
- sizeof (gint32), FS_RELAX, FALSE)))
- {
- new->data = g_new (gint32, 1);
- new->pop_func = undo_pop_fs_relax;
- new->free_func = undo_free_fs_relax;
-
- *((gint32 *) new->data) = layer_ID;
-
- return TRUE;
- }
- else
- return FALSE;
- }
-
-
- static gboolean
- undo_pop_fs_relax (GImage *gimage,
- UndoState state,
- UndoType type,
- gpointer layer_ptr)
- {
- gint32 layer_ID;
- Layer *floating_layer;
-
- layer_ID = *((gint32 *) layer_ptr);
-
- if ((floating_layer = layer_get_ID (layer_ID)) == NULL)
- return FALSE;
-
- if (! layer_is_floating_sel (floating_layer))
- return FALSE;
-
- switch (state)
- {
- case UNDO:
- /* store the affected area from the drawable in the backing store */
- floating_sel_store (floating_layer,
- GIMP_DRAWABLE (floating_layer)->offset_x,
- GIMP_DRAWABLE (floating_layer)->offset_y,
- GIMP_DRAWABLE (floating_layer)->width,
- GIMP_DRAWABLE (floating_layer)->height);
- floating_layer->fs.initial = TRUE;
- break;
-
- case REDO:
- /* restore the contents of drawable the floating layer is attached to */
- if (floating_layer->fs.initial == FALSE)
- floating_sel_restore (floating_layer,
- GIMP_DRAWABLE (floating_layer)->offset_x,
- GIMP_DRAWABLE (floating_layer)->offset_y,
- GIMP_DRAWABLE (floating_layer)->width,
- GIMP_DRAWABLE (floating_layer)->height);
- floating_layer->fs.initial = TRUE;
- break;
- }
-
- return TRUE;
- }
-
-
- static void
- undo_free_fs_relax (UndoState state,
- UndoType type,
- gpointer layer_ptr)
- {
- g_free (layer_ptr);
- }
-
-
- /*********************/
- /* GImage Mod Undo */
-
- gboolean
- undo_push_gimage_mod (GImage *gimage)
- {
- Undo *new;
- gint *data;
-
- if ((new = undo_push (gimage,
- sizeof (gint) * 3, GIMAGE_MOD, TRUE)))
- {
- data = g_new (gint, 3);
- new->data = data;
- new->pop_func = undo_pop_gimage_mod;
- new->free_func = undo_free_gimage_mod;
-
- data[0] = gimage->width;
- data[1] = gimage->height;
- data[2] = gimage->base_type;
-
- return TRUE;
- }
-
- return FALSE;
- }
-
-
- static gboolean
- undo_pop_gimage_mod (GImage *gimage,
- UndoState state,
- UndoType type,
- gpointer data_ptr)
- {
- gint *data;
- gint tmp;
-
- data = (int *) data_ptr;
- tmp = data[0];
- data[0] = gimage->width;
- gimage->width = tmp;
- tmp = data[1];
- data[1] = gimage->height;
- gimage->height = tmp;
- tmp = data[2];
- data[2] = gimage->base_type;
- gimage->base_type = tmp;
-
- gimage_projection_realloc (gimage);
-
- gimage_mask_invalidate (gimage);
- channel_invalidate_previews (gimage);
- layer_invalidate_previews (gimage);
- gimage_invalidate_preview (gimage);
- gdisplays_update_full (gimage);
- gdisplays_update_title (gimage);
-
- gimp_image_colormap_changed (gimage, -1);
-
- if (gimage->width != (int) data[0] || gimage->height != (int) data[1])
- shrink_wrap = TRUE;
-
- return TRUE;
- }
-
-
- static void
- undo_free_gimage_mod (UndoState state,
- UndoType type,
- gpointer data_ptr)
- {
- g_free (data_ptr);
- }
-
- /***********/
- /* Qmask */
-
- typedef struct _QmaskUndo QmaskUndo;
-
- struct _QmaskUndo
- {
- GImage *gimage;
- gboolean qmask;
- };
-
-
- gboolean
- undo_push_qmask (GImage *gimage)
- {
- Undo *new;
- QmaskUndo *data;
-
- if ((new = undo_push (gimage,
- sizeof (QmaskUndo), QMASK_UNDO, TRUE)))
- {
- data = g_new (QmaskUndo, 1);
- new->data = data;
- new->pop_func = undo_pop_qmask;
- new->free_func = undo_free_qmask;
-
- data->gimage = gimage;
- data->qmask = gimage->qmask_state;
-
- return TRUE;
- }
-
- return FALSE;
- }
-
- static gboolean
- undo_pop_qmask (GImage *gimage,
- UndoState state,
- UndoType type,
- gpointer data_ptr)
- {
- QmaskUndo *data;
- gint tmp;
-
- data = (QmaskUndo *) data_ptr;
-
- tmp = gimage->qmask_state;
- gimage->qmask_state = data->qmask;
- data->qmask = tmp;
-
- /* make sure the buttons on all displays are updated */
- gdisplays_flush ();
-
- return TRUE;
- }
-
-
- static void
- undo_free_qmask (UndoState state,
- UndoType type,
- gpointer data_ptr)
- {
- g_free (data_ptr);
- }
-
- /***********/
- /* Guide */
-
- typedef struct _GuideUndo GuideUndo;
-
- struct _GuideUndo
- {
- GImage *gimage;
- Guide *guide;
- Guide orig;
- };
-
- gboolean
- undo_push_guide (GImage *gimage,
- gpointer guide)
- {
- Undo *new;
- GuideUndo *data;
-
- if ((new = undo_push (gimage,
- sizeof (GuideUndo), GUIDE_UNDO, TRUE)))
- {
- ((Guide *)(guide))->ref_count++;
-
- data = g_new (GuideUndo, 1);
- new->data = data;
- new->pop_func = undo_pop_guide;
- new->free_func = undo_free_guide;
-
- data->gimage = gimage;
- data->guide = guide;
- data->orig = *(data->guide);
-
- return TRUE;
- }
-
- return FALSE;
- }
-
-
- static gboolean
- undo_pop_guide (GImage *gimage,
- UndoState state,
- UndoType type,
- gpointer data_ptr)
- {
- GuideUndo *data;
- Guide tmp;
- gint tmp_ref;
-
- data = data_ptr;
-
- gdisplays_expose_guide (gimage, data->guide);
-
- tmp_ref = data->guide->ref_count;
- tmp = *(data->guide);
- *(data->guide) = data->orig;
- data->guide->ref_count = tmp_ref;
- data->orig = tmp;
-
- gdisplays_expose_guide (gimage, data->guide);
-
- return TRUE;
- }
-
-
- static void
- undo_free_guide (UndoState state,
- UndoType type,
- gpointer data_ptr)
- {
- GuideUndo *data;
-
- data = data_ptr;
-
- data->guide->ref_count--;
- if (data->guide->position < 0 && data->guide->ref_count <= 0)
- {
- gimp_image_remove_guide (data->gimage, data->guide);
- g_free (data->guide);
- }
- g_free (data);
- }
-
- /****************/
- /* Resolution */
-
- typedef struct _ResolutionUndo ResolutionUndo;
-
- struct _ResolutionUndo
- {
- gdouble xres;
- gdouble yres;
- GimpUnit unit;
- };
-
- gboolean
- undo_push_resolution (GImage *gimage)
- {
- Undo *new;
- ResolutionUndo *data;
-
- if ((new = undo_push (gimage,
- sizeof (ResolutionUndo), RESOLUTION_UNDO, TRUE)))
- {
- data = g_new (ResolutionUndo, 1);
- new->data = data;
- new->pop_func = undo_pop_resolution;
- new->free_func = undo_free_resolution;
-
- data->xres = gimage->xresolution;
- data->yres = gimage->yresolution;
- data->unit = gimage->unit;
-
- return TRUE;
- }
-
- return FALSE;
- }
-
- static gboolean
- undo_pop_resolution (GImage *gimage,
- UndoState state,
- UndoType type,
- gpointer data_ptr)
- {
- ResolutionUndo *data;
- gdouble tmpres;
- GimpUnit tmpunit;
-
- data = data_ptr;
-
- tmpres = gimage->xresolution;
- gimage->xresolution = data->xres;
- data->xres = tmpres;
-
- tmpres = gimage->yresolution;
- gimage->yresolution = data->yres;
- data->yres = tmpres;
-
- if (data->unit != gimage->unit)
- {
- tmpunit = gimage->unit;
- gimage->unit = data->unit;
- data->unit = tmpunit;
- }
-
- /* really just want to recalc size and repaint */
- shrink_wrap = TRUE;
-
- return TRUE;
- }
-
- static void
- undo_free_resolution (UndoState state,
- UndoType type,
- gpointer data_ptr)
- {
- g_free (data_ptr);
- }
-
-
- /************/
- /* Parasite */
-
- typedef struct _ParasiteUndo ParasiteUndo;
-
- struct _ParasiteUndo
- {
- GImage *gimage;
- GimpDrawable *drawable;
- GimpParasite *parasite;
- gchar *name;
- };
-
- gboolean
- undo_push_image_parasite (GImage *gimage,
- gpointer parasite)
- {
- Undo *new;
- ParasiteUndo *data;
-
- if ((new = undo_push (gimage,
- sizeof (ParasiteUndo), PARASITE_ATTACH_UNDO, TRUE)))
- {
- data = g_new (ParasiteUndo, 1);
- new->data = data;
- new->pop_func = undo_pop_parasite;
- new->free_func = undo_free_parasite;
-
- data->gimage = gimage;
- data->drawable = NULL;
- data->name = g_strdup (gimp_parasite_name (parasite));
- data->parasite = gimp_parasite_copy (gimp_image_parasite_find (gimage, data->name));
-
- return TRUE;
- }
-
- return FALSE;
- }
-
- gboolean
- undo_push_image_parasite_remove (GImage *gimage,
- const gchar *name)
- {
- Undo *new;
- ParasiteUndo *data;
-
- if ((new = undo_push (gimage,
- sizeof (ParasiteUndo), PARASITE_REMOVE_UNDO, TRUE)))
- {
- data = g_new (ParasiteUndo, 1);
- new->data = data;
- new->pop_func = undo_pop_parasite;
- new->free_func = undo_free_parasite;
-
- data->gimage = gimage;
- data->drawable = NULL;
- data->name = g_strdup (name);
- data->parasite = gimp_parasite_copy (gimp_image_parasite_find (gimage, data->name));
-
- return TRUE;
- }
-
- return FALSE;
- }
-
- gboolean
- undo_push_drawable_parasite (GImage *gimage,
- GimpDrawable *drawable,
- gpointer parasite)
- {
- Undo *new;
- ParasiteUndo *data;
-
- if ((new = undo_push (gimage,
- sizeof (ParasiteUndo), GIMAGE_MOD, TRUE)))
- {
- data = g_new (ParasiteUndo, 1);
- new->data = data;
- new->pop_func = undo_pop_parasite;
- new->free_func = undo_free_parasite;
-
- data->gimage = NULL;
- data->drawable = drawable;
- data->name = g_strdup (gimp_parasite_name (parasite));
- data->parasite = gimp_parasite_copy (gimp_drawable_parasite_find (drawable, data->name));
- return TRUE;
- }
-
- return FALSE;
- }
-
- gboolean
- undo_push_drawable_parasite_remove (GImage *gimage,
- GimpDrawable *drawable,
- const gchar *name)
- {
- Undo *new;
- ParasiteUndo *data;
-
- if ((new = undo_push (gimage,
- sizeof (ParasiteUndo), GIMAGE_MOD, TRUE)))
- {
- data = g_new (ParasiteUndo, 1);
- new->data = data;
- new->pop_func = undo_pop_parasite;
- new->free_func = undo_free_parasite;
-
- data->gimage = NULL;
- data->drawable = drawable;
- data->name = g_strdup (name);
- data->parasite = gimp_parasite_copy (gimp_drawable_parasite_find (drawable, data->name));
- return TRUE;
- }
-
- return FALSE;
- }
-
-
- static gboolean
- undo_pop_parasite (GImage *gimage,
- UndoState state,
- UndoType type,
- gpointer data_ptr)
- {
- ParasiteUndo *data;
- GimpParasite *tmp;
-
- data = data_ptr;
-
- tmp = data->parasite;
-
- if (data->gimage)
- {
- data->parasite =
- gimp_parasite_copy (gimp_image_parasite_find (gimage, data->name));
-
- if (tmp)
- parasite_list_add (data->gimage->parasites, tmp);
- else
- parasite_list_remove (data->gimage->parasites, data->name);
- }
- else if (data->drawable)
- {
- data->parasite =
- gimp_parasite_copy (gimp_drawable_parasite_find (data->drawable,
- data->name));
- if (tmp)
- parasite_list_add (data->drawable->parasites, tmp);
- else
- parasite_list_remove (data->drawable->parasites, data->name);
- }
- else
- {
- data->parasite = gimp_parasite_copy (gimp_parasite_find (data->name));
- if (tmp)
- gimp_parasite_attach (tmp);
- else
- gimp_parasite_detach (data->name);
- }
-
- if (tmp)
- gimp_parasite_free (tmp);
-
- return TRUE;
- }
-
-
- static void
- undo_free_parasite (UndoState state,
- UndoType type,
- gpointer data_ptr)
- {
- ParasiteUndo *data;
-
- data = data_ptr;
-
- if (data->parasite)
- gimp_parasite_free (data->parasite);
- if (data->name)
- g_free (data->name);
-
- g_free (data_ptr);
- }
-
-
-
- /*************/
- /* Layer re-position */
-
- typedef struct _LayerRepositionUndo LayerRepositionUndo;
-
- struct _LayerRepositionUndo
- {
- GimpLayer *layer;
- gint old_position;
- };
-
- gboolean
- undo_push_layer_reposition (GImage *gimage,
- GimpLayer *layer)
- {
- Undo *new;
- LayerRepositionUndo *data;
-
- if ((new = undo_push (gimage,
- sizeof (LayerRepositionUndo), LAYER_REPOSITION_UNDO, TRUE)))
- {
- data = g_new (LayerRepositionUndo, 1);
- new->data = data;
- new->pop_func = undo_pop_layer_reposition;
- new->free_func = undo_free_layer_reposition;
-
- data->layer = layer;
- data->old_position = g_slist_index (gimage->layers, layer);
-
- return TRUE;
- }
-
- return FALSE;
- }
-
- static gboolean
- undo_pop_layer_reposition (GImage *gimage,
- UndoState state,
- UndoType type,
- void *data_ptr)
- {
- LayerRepositionUndo *data = data_ptr;
- gint tmp;
-
- /* what's the layer's current index? */
- tmp = g_slist_index (gimage->layers, data->layer);
-
- gimp_image_position_layer (gimage, data->layer, data->old_position, FALSE);
-
- data->old_position = tmp;
-
- return TRUE;
- }
-
- static void
- undo_free_layer_reposition (UndoState state,
- UndoType type,
- void *data_ptr)
- {
- g_free (data_ptr);
- }
-
-
- /*************/
- /* Layer name change */
-
- typedef struct _LayerRenameUndo LayerRenameUndo;
-
- struct _LayerRenameUndo
- {
- GimpLayer *layer;
- gchar *old_name;
- };
-
- gboolean
- undo_push_layer_rename (GImage *gimage,
- GimpLayer *layer)
- {
- Undo *new;
- LayerRenameUndo *data;
-
- if ((new = undo_push (gimage,
- sizeof (LayerRenameUndo), LAYER_RENAME_UNDO, TRUE)))
- {
- data = g_new (LayerRenameUndo, 1);
- new->data = data;
- new->pop_func = undo_pop_layer_rename;
- new->free_func = undo_free_layer_rename;
-
- data->layer = layer;
- data->old_name = g_strdup (layer_get_name (layer));
-
- return TRUE;
- }
-
- return FALSE;
- }
-
- static gboolean
- undo_pop_layer_rename (GImage *gimage,
- UndoState state,
- UndoType type,
- void *data_ptr)
- {
- LayerRenameUndo *data = data_ptr;
- gchar *tmp;
-
- tmp = g_strdup (layer_get_name (data->layer));
- layer_set_name (data->layer, data->old_name);
- g_free (data->old_name);
- data->old_name = tmp;
-
- return TRUE;
- }
-
- static void
- undo_free_layer_rename (UndoState state,
- UndoType type,
- gpointer data_ptr)
- {
- LayerRenameUndo *data = data_ptr;
-
- g_free (data->old_name);
- g_free (data);
- }
-
-
-
- /*************/
- /* Something for which programmer is too lazy to write an undo
- * function for.
- */
-
- gboolean
- undo_push_cantundo (GImage *gimage,
- const gchar *action)
- {
- Undo *new;
-
- /* This is the sole purpose of this type of undo: the ability to
- * mark an image as having been mutated, without really providing
- * any adequate undo facility. */
-
- new = undo_push (gimage, 0, GIMAGE_MOD, TRUE);
- if (!new)
- return FALSE;
-
- new->data = (void*) action;
- new->pop_func = undo_pop_cantundo;
- new->free_func = undo_free_cantundo;
-
- return TRUE;
- }
-
- static gboolean
- undo_pop_cantundo (GImage *gimage,
- UndoState state,
- UndoType type,
- gpointer data_ptr)
- {
- gchar *action = data_ptr;
-
- switch (state)
- {
- case UNDO:
- g_message (_("Can't undo %s"), action);
- break;
-
- case REDO:
- break;
- }
-
- return TRUE;
- }
-
-
- static void
- undo_free_cantundo (UndoState state,
- UndoType type,
- gpointer data_ptr)
- {
- /* nothing to free */
- }
-
-
-
-
- /* A "ok" to the name means I've checked where it's used and
- it seems plausible. -- austin 23/9/99 */
- static struct undo_name_t
- {
- UndoType type;
- const gchar *name;
- }
- undo_name[] =
- {
- { UNDO_NULL, N_("<<invalid>>") },
- { IMAGE_UNDO, N_("image") },
- { IMAGE_MOD_UNDO, N_("image mod") },
- { MASK_UNDO, N_("mask") },
- { LAYER_DISPLACE_UNDO, N_("layer move") }, /* ok */
- { TRANSFORM_UNDO, N_("transform") },
- { PAINT_UNDO, N_("paint") },
- { LAYER_ADD_UNDO, N_("new layer") },
- { LAYER_REMOVE_UNDO, N_("delete layer") },
- { LAYER_MOD, N_("layer mod") },
- { LAYER_MASK_ADD_UNDO, N_("add layer mask") }, /* ok */
- { LAYER_MASK_REMOVE_UNDO, N_("delete layer mask") }, /* ok */
- { LAYER_RENAME_UNDO, N_("rename layer") },
- { LAYER_REPOSITION_UNDO, N_("layer reposition") }, /* ok */
- { CHANNEL_ADD_UNDO, N_("new channel") },
- { CHANNEL_REMOVE_UNDO, N_("delete channel") },
- { CHANNEL_MOD, N_("channel mod") },
- { FS_TO_LAYER_UNDO, N_("FS to layer") }, /* ok */
- { GIMAGE_MOD, N_("gimage") },
- { FS_RIGOR, N_("FS rigor") },
- { FS_RELAX, N_("FS relax") },
- { GUIDE_UNDO, N_("guide") },
- { TEXT_UNDO, N_("text") },
- { FLOAT_MASK_UNDO, N_("float selection") },
- { EDIT_PASTE_UNDO, N_("paste") },
- { EDIT_CUT_UNDO, N_("cut") },
- { TRANSFORM_CORE_UNDO, N_("transform core") },
- { PAINT_CORE_UNDO, N_("paint core") },
- { FLOATING_LAYER_UNDO, N_("floating layer") }, /* unused! */
- { LINKED_LAYER_UNDO, N_("linked layer") },
- { LAYER_APPLY_MASK_UNDO, N_("apply layer mask") }, /* ok */
- { LAYER_MERGE_UNDO, N_("layer merge") },
- { FS_ANCHOR_UNDO, N_("FS anchor") },
- { GIMAGE_MOD_UNDO, N_("gimage mod") },
- { CROP_UNDO, N_("crop") },
- { LAYER_SCALE_UNDO, N_("layer scale") },
- { LAYER_RESIZE_UNDO, N_("layer resize") },
- { QMASK_UNDO, N_("quickmask") },
- { PARASITE_ATTACH_UNDO, N_("attach parasite") },
- { PARASITE_REMOVE_UNDO, N_("remove parasite") },
- { RESOLUTION_UNDO, N_("resolution change") },
- { IMAGE_SCALE_UNDO, N_("image scale") },
- { IMAGE_RESIZE_UNDO, N_("image resize") },
- { MISC_UNDO, N_("misc") }
- };
- #define NUM_NAMES (sizeof (undo_name) / sizeof (struct undo_name_t))
-
-
- static const gchar *
- undo_type_to_name (UndoType type)
- {
- gint i;
-
- for (i=0; i < NUM_NAMES; i++)
- if (undo_name[i].type == type)
- return gettext (undo_name[i].name);
-
- /* no name found */
- return "";
- }
-