gimp/app/plug-in/gimpplugin-cleanup.c

579 lines
16 KiB
C

/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimpplugin-cleanup.c
*
* 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 3 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, see <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gdk-pixbuf/gdk-pixbuf.h>
#include <gegl.h>
#include "plug-in-types.h"
#include "core/gimp.h"
#include "core/gimpcontainer.h"
#include "core/gimpdrawable.h"
#include "core/gimpdrawable-shadow.h"
#include "core/gimpimage.h"
#include "core/gimpimage-undo.h"
#include "core/gimpundostack.h"
#include "gimpplugin.h"
#include "gimpplugin-cleanup.h"
#include "gimppluginmanager.h"
#include "gimppluginprocedure.h"
#include "gimp-log.h"
typedef struct _GimpPlugInCleanupImage GimpPlugInCleanupImage;
struct _GimpPlugInCleanupImage
{
GimpImage *image;
gint image_id;
gint undo_group_count;
gint layers_freeze_count;
gint channels_freeze_count;
gint vectors_freeze_count;
};
typedef struct _GimpPlugInCleanupItem GimpPlugInCleanupItem;
struct _GimpPlugInCleanupItem
{
GimpItem *item;
gint item_id;
gboolean shadow_buffer;
};
/* local function prototypes */
static GimpPlugInCleanupImage *
gimp_plug_in_cleanup_image_new (GimpPlugInProcFrame *proc_frame,
GimpImage *image);
static void gimp_plug_in_cleanup_image_free (GimpPlugInProcFrame *proc_frame,
GimpPlugInCleanupImage *cleanup);
static gboolean
gimp_plug_in_cleanup_image_is_clean (GimpPlugInCleanupImage *cleanup);
static GimpPlugInCleanupImage *
gimp_plug_in_cleanup_image_get (GimpPlugInProcFrame *proc_frame,
GimpImage *image);
static void gimp_plug_in_cleanup_image (GimpPlugInProcFrame *proc_frame,
GimpPlugInCleanupImage *cleanup);
static GimpPlugInCleanupItem *
gimp_plug_in_cleanup_item_new (GimpPlugInProcFrame *proc_frame,
GimpItem *item);
static void gimp_plug_in_cleanup_item_free (GimpPlugInProcFrame *proc_frame,
GimpPlugInCleanupItem *cleanup);
static gboolean
gimp_plug_in_cleanup_item_is_clean (GimpPlugInCleanupItem *cleanup);
static GimpPlugInCleanupItem *
gimp_plug_in_cleanup_item_get (GimpPlugInProcFrame *proc_frame,
GimpItem *item);
static void gimp_plug_in_cleanup_item (GimpPlugInProcFrame *proc_frame,
GimpPlugInCleanupItem *cleanup);
/* public functions */
gboolean
gimp_plug_in_cleanup_undo_group_start (GimpPlugIn *plug_in,
GimpImage *image)
{
GimpPlugInProcFrame *proc_frame;
GimpPlugInCleanupImage *cleanup;
g_return_val_if_fail (GIMP_IS_PLUG_IN (plug_in), FALSE);
g_return_val_if_fail (GIMP_IS_IMAGE (image), FALSE);
proc_frame = gimp_plug_in_get_proc_frame (plug_in);
cleanup = gimp_plug_in_cleanup_image_get (proc_frame, image);
if (! cleanup)
cleanup = gimp_plug_in_cleanup_image_new (proc_frame, image);
cleanup->undo_group_count++;
return TRUE;
}
gboolean
gimp_plug_in_cleanup_undo_group_end (GimpPlugIn *plug_in,
GimpImage *image)
{
GimpPlugInProcFrame *proc_frame;
GimpPlugInCleanupImage *cleanup;
g_return_val_if_fail (GIMP_IS_PLUG_IN (plug_in), FALSE);
g_return_val_if_fail (GIMP_IS_IMAGE (image), FALSE);
proc_frame = gimp_plug_in_get_proc_frame (plug_in);
cleanup = gimp_plug_in_cleanup_image_get (proc_frame, image);
if (! cleanup)
return FALSE;
if (cleanup->undo_group_count > 0)
{
cleanup->undo_group_count--;
if (gimp_plug_in_cleanup_image_is_clean (cleanup))
gimp_plug_in_cleanup_image_free (proc_frame, cleanup);
return TRUE;
}
return FALSE;
}
gboolean
gimp_plug_in_cleanup_layers_freeze (GimpPlugIn *plug_in,
GimpImage *image)
{
GimpPlugInProcFrame *proc_frame;
GimpPlugInCleanupImage *cleanup;
g_return_val_if_fail (GIMP_IS_PLUG_IN (plug_in), FALSE);
g_return_val_if_fail (GIMP_IS_IMAGE (image), FALSE);
proc_frame = gimp_plug_in_get_proc_frame (plug_in);
cleanup = gimp_plug_in_cleanup_image_get (proc_frame, image);
if (! cleanup)
cleanup = gimp_plug_in_cleanup_image_new (proc_frame, image);
cleanup->layers_freeze_count++;
return TRUE;
}
gboolean
gimp_plug_in_cleanup_layers_thaw (GimpPlugIn *plug_in,
GimpImage *image)
{
GimpPlugInProcFrame *proc_frame;
GimpPlugInCleanupImage *cleanup;
g_return_val_if_fail (GIMP_IS_PLUG_IN (plug_in), FALSE);
g_return_val_if_fail (GIMP_IS_IMAGE (image), FALSE);
proc_frame = gimp_plug_in_get_proc_frame (plug_in);
cleanup = gimp_plug_in_cleanup_image_get (proc_frame, image);
if (! cleanup)
return FALSE;
if (cleanup->layers_freeze_count > 0)
{
cleanup->layers_freeze_count--;
if (gimp_plug_in_cleanup_image_is_clean (cleanup))
gimp_plug_in_cleanup_image_free (proc_frame, cleanup);
return TRUE;
}
return FALSE;
}
gboolean
gimp_plug_in_cleanup_channels_freeze (GimpPlugIn *plug_in,
GimpImage *image)
{
GimpPlugInProcFrame *proc_frame;
GimpPlugInCleanupImage *cleanup;
g_return_val_if_fail (GIMP_IS_PLUG_IN (plug_in), FALSE);
g_return_val_if_fail (GIMP_IS_IMAGE (image), FALSE);
proc_frame = gimp_plug_in_get_proc_frame (plug_in);
cleanup = gimp_plug_in_cleanup_image_get (proc_frame, image);
if (! cleanup)
cleanup = gimp_plug_in_cleanup_image_new (proc_frame, image);
cleanup->channels_freeze_count++;
return TRUE;
}
gboolean
gimp_plug_in_cleanup_channels_thaw (GimpPlugIn *plug_in,
GimpImage *image)
{
GimpPlugInProcFrame *proc_frame;
GimpPlugInCleanupImage *cleanup;
g_return_val_if_fail (GIMP_IS_PLUG_IN (plug_in), FALSE);
g_return_val_if_fail (GIMP_IS_IMAGE (image), FALSE);
proc_frame = gimp_plug_in_get_proc_frame (plug_in);
cleanup = gimp_plug_in_cleanup_image_get (proc_frame, image);
if (! cleanup)
return FALSE;
if (cleanup->channels_freeze_count > 0)
{
cleanup->channels_freeze_count--;
if (gimp_plug_in_cleanup_image_is_clean (cleanup))
gimp_plug_in_cleanup_image_free (proc_frame, cleanup);
return TRUE;
}
return FALSE;
}
gboolean
gimp_plug_in_cleanup_paths_freeze (GimpPlugIn *plug_in,
GimpImage *image)
{
GimpPlugInProcFrame *proc_frame;
GimpPlugInCleanupImage *cleanup;
g_return_val_if_fail (GIMP_IS_PLUG_IN (plug_in), FALSE);
g_return_val_if_fail (GIMP_IS_IMAGE (image), FALSE);
proc_frame = gimp_plug_in_get_proc_frame (plug_in);
cleanup = gimp_plug_in_cleanup_image_get (proc_frame, image);
if (! cleanup)
cleanup = gimp_plug_in_cleanup_image_new (proc_frame, image);
cleanup->vectors_freeze_count++;
return TRUE;
}
gboolean
gimp_plug_in_cleanup_paths_thaw (GimpPlugIn *plug_in,
GimpImage *image)
{
GimpPlugInProcFrame *proc_frame;
GimpPlugInCleanupImage *cleanup;
g_return_val_if_fail (GIMP_IS_PLUG_IN (plug_in), FALSE);
g_return_val_if_fail (GIMP_IS_IMAGE (image), FALSE);
proc_frame = gimp_plug_in_get_proc_frame (plug_in);
cleanup = gimp_plug_in_cleanup_image_get (proc_frame, image);
if (! cleanup)
return FALSE;
if (cleanup->vectors_freeze_count > 0)
{
cleanup->vectors_freeze_count--;
if (gimp_plug_in_cleanup_image_is_clean (cleanup))
gimp_plug_in_cleanup_image_free (proc_frame, cleanup);
return TRUE;
}
return FALSE;
}
gboolean
gimp_plug_in_cleanup_add_shadow (GimpPlugIn *plug_in,
GimpDrawable *drawable)
{
GimpPlugInProcFrame *proc_frame;
GimpPlugInCleanupItem *cleanup;
g_return_val_if_fail (GIMP_IS_PLUG_IN (plug_in), FALSE);
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), FALSE);
proc_frame = gimp_plug_in_get_proc_frame (plug_in);
cleanup = gimp_plug_in_cleanup_item_get (proc_frame, GIMP_ITEM (drawable));
if (! cleanup)
cleanup = gimp_plug_in_cleanup_item_new (proc_frame, GIMP_ITEM (drawable));
cleanup->shadow_buffer = TRUE;
return TRUE;
}
gboolean
gimp_plug_in_cleanup_remove_shadow (GimpPlugIn *plug_in,
GimpDrawable *drawable)
{
GimpPlugInProcFrame *proc_frame;
GimpPlugInCleanupItem *cleanup;
g_return_val_if_fail (GIMP_IS_PLUG_IN (plug_in), FALSE);
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), FALSE);
proc_frame = gimp_plug_in_get_proc_frame (plug_in);
cleanup = gimp_plug_in_cleanup_item_get (proc_frame, GIMP_ITEM (drawable));
if (! cleanup)
return FALSE;
if (cleanup->shadow_buffer)
{
cleanup->shadow_buffer = FALSE;
if (gimp_plug_in_cleanup_item_is_clean (cleanup))
gimp_plug_in_cleanup_item_free (proc_frame, cleanup);
return TRUE;
}
return FALSE;
}
void
gimp_plug_in_cleanup (GimpPlugIn *plug_in,
GimpPlugInProcFrame *proc_frame)
{
g_return_if_fail (GIMP_IS_PLUG_IN (plug_in));
g_return_if_fail (proc_frame != NULL);
while (proc_frame->image_cleanups)
{
GimpPlugInCleanupImage *cleanup = proc_frame->image_cleanups->data;
if (gimp_image_get_by_id (plug_in->manager->gimp,
cleanup->image_id) == cleanup->image)
{
gimp_plug_in_cleanup_image (proc_frame, cleanup);
}
gimp_plug_in_cleanup_image_free (proc_frame, cleanup);
}
while (proc_frame->item_cleanups)
{
GimpPlugInCleanupItem *cleanup = proc_frame->item_cleanups->data;
if (gimp_item_get_by_id (plug_in->manager->gimp,
cleanup->item_id) == cleanup->item)
{
gimp_plug_in_cleanup_item (proc_frame, cleanup);
}
gimp_plug_in_cleanup_item_free (proc_frame, cleanup);
}
}
/* private functions */
static GimpPlugInCleanupImage *
gimp_plug_in_cleanup_image_new (GimpPlugInProcFrame *proc_frame,
GimpImage *image)
{
GimpPlugInCleanupImage *cleanup = g_slice_new0 (GimpPlugInCleanupImage);
cleanup->image = image;
cleanup->image_id = gimp_image_get_id (image);
proc_frame->image_cleanups = g_list_prepend (proc_frame->image_cleanups,
cleanup);
return cleanup;
}
static void
gimp_plug_in_cleanup_image_free (GimpPlugInProcFrame *proc_frame,
GimpPlugInCleanupImage *cleanup)
{
proc_frame->image_cleanups = g_list_remove (proc_frame->image_cleanups,
cleanup);
g_slice_free (GimpPlugInCleanupImage, cleanup);
}
static gboolean
gimp_plug_in_cleanup_image_is_clean (GimpPlugInCleanupImage *cleanup)
{
if (cleanup->undo_group_count > 0)
return FALSE;
if (cleanup->layers_freeze_count > 0)
return FALSE;
if (cleanup->channels_freeze_count > 0)
return FALSE;
if (cleanup->vectors_freeze_count > 0)
return FALSE;
return TRUE;
}
static GimpPlugInCleanupImage *
gimp_plug_in_cleanup_image_get (GimpPlugInProcFrame *proc_frame,
GimpImage *image)
{
GList *list;
for (list = proc_frame->image_cleanups; list; list = g_list_next (list))
{
GimpPlugInCleanupImage *cleanup = list->data;
if (cleanup->image == image)
return cleanup;
}
return NULL;
}
static void
gimp_plug_in_cleanup_image (GimpPlugInProcFrame *proc_frame,
GimpPlugInCleanupImage *cleanup)
{
GimpImage *image = cleanup->image;
GimpContainer *container;
if (cleanup->undo_group_count > 0)
{
g_message ("Plug-in '%s' left image undo in inconsistent state, "
"closing open undo groups.",
gimp_procedure_get_label (proc_frame->procedure));
while (cleanup->undo_group_count--)
if (! gimp_image_undo_group_end (image))
break;
}
container = gimp_image_get_layers (image);
if (cleanup->layers_freeze_count > 0)
{
g_message ("Plug-in '%s' left image's layers frozen, "
"thawing layers.",
gimp_procedure_get_label (proc_frame->procedure));
while (cleanup->layers_freeze_count-- > 0 &&
gimp_container_frozen (container))
{
gimp_container_thaw (container);
}
}
container = gimp_image_get_channels (image);
if (cleanup->channels_freeze_count > 0)
{
g_message ("Plug-in '%s' left image's channels frozen, "
"thawing channels.",
gimp_procedure_get_label (proc_frame->procedure));
while (cleanup->channels_freeze_count-- > 0 &&
gimp_container_frozen (container))
{
gimp_container_thaw (container);
}
}
container = gimp_image_get_paths (image);
if (cleanup->vectors_freeze_count > 0)
{
g_message ("Plug-in '%s' left image's paths frozen, "
"thawing paths.",
gimp_procedure_get_label (proc_frame->procedure));
while (cleanup->vectors_freeze_count > 0 &&
gimp_container_frozen (container))
{
gimp_container_thaw (container);
}
}
}
static GimpPlugInCleanupItem *
gimp_plug_in_cleanup_item_new (GimpPlugInProcFrame *proc_frame,
GimpItem *item)
{
GimpPlugInCleanupItem *cleanup = g_slice_new0 (GimpPlugInCleanupItem);
cleanup->item = item;
cleanup->item_id = gimp_item_get_id (item);
proc_frame->item_cleanups = g_list_prepend (proc_frame->item_cleanups,
cleanup);
return cleanup;
}
static void
gimp_plug_in_cleanup_item_free (GimpPlugInProcFrame *proc_frame,
GimpPlugInCleanupItem *cleanup)
{
proc_frame->item_cleanups = g_list_remove (proc_frame->item_cleanups,
cleanup);
g_slice_free (GimpPlugInCleanupItem, cleanup);
}
static gboolean
gimp_plug_in_cleanup_item_is_clean (GimpPlugInCleanupItem *cleanup)
{
if (cleanup->shadow_buffer)
return FALSE;
return TRUE;
}
static GimpPlugInCleanupItem *
gimp_plug_in_cleanup_item_get (GimpPlugInProcFrame *proc_frame,
GimpItem *item)
{
GList *list;
for (list = proc_frame->item_cleanups; list; list = g_list_next (list))
{
GimpPlugInCleanupItem *cleanup = list->data;
if (cleanup->item == item)
return cleanup;
}
return NULL;
}
static void
gimp_plug_in_cleanup_item (GimpPlugInProcFrame *proc_frame,
GimpPlugInCleanupItem *cleanup)
{
GimpItem *item = cleanup->item;
if (cleanup->shadow_buffer)
{
GIMP_LOG (SHADOW_TILES,
"Freeing shadow buffer of drawable '%s' on behalf of '%s'.",
gimp_object_get_name (item),
gimp_procedure_get_label (proc_frame->procedure));
gimp_drawable_free_shadow_buffer (GIMP_DRAWABLE (item));
cleanup->shadow_buffer = FALSE;
}
}