gimp/libgimp/gimpimageundo_pdb.c

307 lines
9.4 KiB
C

/* LIBGIMP - The GIMP Library
* Copyright (C) 1995-2003 Peter Mattis and Spencer Kimball
*
* gimpimageundo_pdb.c
*
* This library is free software: you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <https://www.gnu.org/licenses/>.
*/
/* NOTE: This file is auto-generated by pdbgen.pl */
#include "config.h"
#include "stamp-pdbgen.h"
#include "gimp.h"
/**
* SECTION: gimpimageundo
* @title: gimpimageundo
* @short_description: Control of image undo/redo.
*
* Control of image undo/redo.
**/
/**
* gimp_image_undo_group_start:
* @image: The ID of the image in which to open an undo group.
*
* Starts a group undo.
*
* This function is used to start a group undo--necessary for logically
* combining two or more undo operations into a single operation. This
* call must be used in conjunction with a gimp_image_undo_group_end()
* call.
*
* Returns: TRUE on success.
**/
gboolean
gimp_image_undo_group_start (GimpImage *image)
{
GimpValueArray *args;
GimpValueArray *return_vals;
gboolean success = TRUE;
args = gimp_value_array_new_from_types (NULL,
GIMP_TYPE_IMAGE, image,
G_TYPE_NONE);
return_vals = gimp_pdb_run_procedure_array (gimp_get_pdb (),
"gimp-image-undo-group-start",
args);
gimp_value_array_unref (args);
success = GIMP_VALUES_GET_ENUM (return_vals, 0) == GIMP_PDB_SUCCESS;
gimp_value_array_unref (return_vals);
return success;
}
/**
* gimp_image_undo_group_end:
* @image: The ID of the image in which to close an undo group.
*
* Finish a group undo.
*
* This function must be called once for each
* gimp_image_undo_group_start() call that is made.
*
* Returns: TRUE on success.
**/
gboolean
gimp_image_undo_group_end (GimpImage *image)
{
GimpValueArray *args;
GimpValueArray *return_vals;
gboolean success = TRUE;
args = gimp_value_array_new_from_types (NULL,
GIMP_TYPE_IMAGE, image,
G_TYPE_NONE);
return_vals = gimp_pdb_run_procedure_array (gimp_get_pdb (),
"gimp-image-undo-group-end",
args);
gimp_value_array_unref (args);
success = GIMP_VALUES_GET_ENUM (return_vals, 0) == GIMP_PDB_SUCCESS;
gimp_value_array_unref (return_vals);
return success;
}
/**
* gimp_image_undo_is_enabled:
* @image: The image.
*
* Check if the image's undo stack is enabled.
*
* This procedure checks if the image's undo stack is currently enabled
* or disabled. This is useful when several plug-ins or scripts call
* each other and want to check if their caller has already used
* gimp_image_undo_disable() or gimp_image_undo_freeze().
*
* Returns: TRUE if undo is enabled for this image.
**/
gboolean
gimp_image_undo_is_enabled (GimpImage *image)
{
GimpValueArray *args;
GimpValueArray *return_vals;
gboolean enabled = FALSE;
args = gimp_value_array_new_from_types (NULL,
GIMP_TYPE_IMAGE, image,
G_TYPE_NONE);
return_vals = gimp_pdb_run_procedure_array (gimp_get_pdb (),
"gimp-image-undo-is-enabled",
args);
gimp_value_array_unref (args);
if (GIMP_VALUES_GET_ENUM (return_vals, 0) == GIMP_PDB_SUCCESS)
enabled = GIMP_VALUES_GET_BOOLEAN (return_vals, 1);
gimp_value_array_unref (return_vals);
return enabled;
}
/**
* gimp_image_undo_disable:
* @image: The image.
*
* Disable the image's undo stack.
*
* This procedure disables the image's undo stack, allowing subsequent
* operations to ignore their undo steps. This is generally called in
* conjunction with gimp_image_undo_enable() to temporarily disable an
* image undo stack. This is advantageous because saving undo steps can
* be time and memory intensive.
*
* Returns: TRUE if the image undo has been disabled.
**/
gboolean
gimp_image_undo_disable (GimpImage *image)
{
GimpValueArray *args;
GimpValueArray *return_vals;
gboolean disabled = FALSE;
args = gimp_value_array_new_from_types (NULL,
GIMP_TYPE_IMAGE, image,
G_TYPE_NONE);
return_vals = gimp_pdb_run_procedure_array (gimp_get_pdb (),
"gimp-image-undo-disable",
args);
gimp_value_array_unref (args);
if (GIMP_VALUES_GET_ENUM (return_vals, 0) == GIMP_PDB_SUCCESS)
disabled = GIMP_VALUES_GET_BOOLEAN (return_vals, 1);
gimp_value_array_unref (return_vals);
return disabled;
}
/**
* gimp_image_undo_enable:
* @image: The image.
*
* Enable the image's undo stack.
*
* This procedure enables the image's undo stack, allowing subsequent
* operations to store their undo steps. This is generally called in
* conjunction with gimp_image_undo_disable() to temporarily disable an
* image undo stack.
*
* Returns: TRUE if the image undo has been enabled.
**/
gboolean
gimp_image_undo_enable (GimpImage *image)
{
GimpValueArray *args;
GimpValueArray *return_vals;
gboolean enabled = FALSE;
args = gimp_value_array_new_from_types (NULL,
GIMP_TYPE_IMAGE, image,
G_TYPE_NONE);
return_vals = gimp_pdb_run_procedure_array (gimp_get_pdb (),
"gimp-image-undo-enable",
args);
gimp_value_array_unref (args);
if (GIMP_VALUES_GET_ENUM (return_vals, 0) == GIMP_PDB_SUCCESS)
enabled = GIMP_VALUES_GET_BOOLEAN (return_vals, 1);
gimp_value_array_unref (return_vals);
return enabled;
}
/**
* gimp_image_undo_freeze:
* @image: The image.
*
* Freeze the image's undo stack.
*
* This procedure freezes the image's undo stack, allowing subsequent
* operations to ignore their undo steps. This is generally called in
* conjunction with gimp_image_undo_thaw() to temporarily disable an
* image undo stack. This is advantageous because saving undo steps can
* be time and memory intensive. gimp_image_undo_freeze() /
* gimp_image_undo_thaw() and gimp_image_undo_disable() /
* gimp_image_undo_enable() differ in that the former does not free up
* all undo steps when undo is thawed, so is more suited to interactive
* in-situ previews. It is important in this case that the image is
* back to the same state it was frozen in before thawing, else 'undo'
* behaviour is undefined.
*
* Returns: TRUE if the image undo has been frozen.
**/
gboolean
gimp_image_undo_freeze (GimpImage *image)
{
GimpValueArray *args;
GimpValueArray *return_vals;
gboolean frozen = FALSE;
args = gimp_value_array_new_from_types (NULL,
GIMP_TYPE_IMAGE, image,
G_TYPE_NONE);
return_vals = gimp_pdb_run_procedure_array (gimp_get_pdb (),
"gimp-image-undo-freeze",
args);
gimp_value_array_unref (args);
if (GIMP_VALUES_GET_ENUM (return_vals, 0) == GIMP_PDB_SUCCESS)
frozen = GIMP_VALUES_GET_BOOLEAN (return_vals, 1);
gimp_value_array_unref (return_vals);
return frozen;
}
/**
* gimp_image_undo_thaw:
* @image: The image.
*
* Thaw the image's undo stack.
*
* This procedure thaws the image's undo stack, allowing subsequent
* operations to store their undo steps. This is generally called in
* conjunction with gimp_image_undo_freeze() to temporarily freeze an
* image undo stack. gimp_image_undo_thaw() does NOT free the undo
* stack as gimp_image_undo_enable() does, so is suited for situations
* where one wishes to leave the undo stack in the same state in which
* one found it despite non-destructively playing with the image in the
* meantime. An example would be in-situ plug-in previews. Balancing
* freezes and thaws and ensuring image consistency is the
* responsibility of the caller.
*
* Returns: TRUE if the image undo has been thawed.
**/
gboolean
gimp_image_undo_thaw (GimpImage *image)
{
GimpValueArray *args;
GimpValueArray *return_vals;
gboolean thawed = FALSE;
args = gimp_value_array_new_from_types (NULL,
GIMP_TYPE_IMAGE, image,
G_TYPE_NONE);
return_vals = gimp_pdb_run_procedure_array (gimp_get_pdb (),
"gimp-image-undo-thaw",
args);
gimp_value_array_unref (args);
if (GIMP_VALUES_GET_ENUM (return_vals, 0) == GIMP_PDB_SUCCESS)
thawed = GIMP_VALUES_GET_BOOLEAN (return_vals, 1);
gimp_value_array_unref (return_vals);
return thawed;
}