mirror of https://github.com/GNOME/gimp.git
244 lines
6.6 KiB
C
244 lines
6.6 KiB
C
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/* The GIMP -- an image manipulation program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "config.h"
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#include <time.h>
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#include <glib-object.h>
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#include "text-types.h"
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#include "config/gimpconfig.h"
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#include "config/gimpconfig-utils.h"
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#include "core/gimpitem.h"
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#include "core/gimpitemundo.h"
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#include "gimptext.h"
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#include "gimptextlayer.h"
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#include "gimptextundo.h"
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static void gimp_text_undo_class_init (GimpTextUndoClass *klass);
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static void gimp_text_undo_init (GimpTextUndo *undo);
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static gint64 gimp_text_undo_get_memsize (GimpObject *object,
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gint64 *gui_size);
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static void gimp_text_undo_pop (GimpUndo *undo,
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GimpUndoMode undo_mode,
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GimpUndoAccumulator *accum);
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static void gimp_text_undo_free (GimpUndo *undo,
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GimpUndoMode undo_mode);
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static GimpUndoClass *parent_class = NULL;
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GType
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gimp_text_undo_get_type (void)
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{
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static GType undo_type = 0;
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if (! undo_type)
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{
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static const GTypeInfo undo_info =
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{
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sizeof (GimpTextUndoClass),
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(GBaseInitFunc) NULL,
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(GBaseFinalizeFunc) NULL,
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(GClassInitFunc) gimp_text_undo_class_init,
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NULL, /* class_finalize */
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NULL, /* class_data */
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sizeof (GimpTextUndo),
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0, /* n_preallocs */
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(GInstanceInitFunc) gimp_text_undo_init,
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};
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undo_type = g_type_register_static (GIMP_TYPE_ITEM_UNDO, "GimpTextUndo",
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&undo_info, 0);
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}
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return undo_type;
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}
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static void
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gimp_text_undo_class_init (GimpTextUndoClass *klass)
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{
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GimpObjectClass *object_class = GIMP_OBJECT_CLASS (klass);
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GimpUndoClass *undo_class = GIMP_UNDO_CLASS (klass);
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parent_class = g_type_class_peek_parent (klass);
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object_class->get_memsize = gimp_text_undo_get_memsize;
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undo_class->pop = gimp_text_undo_pop;
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undo_class->free = gimp_text_undo_free;
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}
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static void
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gimp_text_undo_init (GimpTextUndo *undo)
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{
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undo->text = NULL;
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undo->pspec = NULL;
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undo->time = 0;
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}
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static gint64
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gimp_text_undo_get_memsize (GimpObject *object,
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gint64 *gui_size)
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{
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GimpTextUndo *undo = GIMP_TEXT_UNDO (object);
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gint64 memsize = 0;
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if (undo->pspec)
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{
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/* this is incorrect, but how can it be done better? */
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memsize = sizeof (GValue);
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}
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else if (undo->text)
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{
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memsize = gimp_object_get_memsize (GIMP_OBJECT (undo->text), NULL);
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}
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return memsize + GIMP_OBJECT_CLASS (parent_class)->get_memsize (object,
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gui_size);
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}
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static void
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gimp_text_undo_pop (GimpUndo *undo,
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GimpUndoMode undo_mode,
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GimpUndoAccumulator *accum)
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{
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GimpTextUndo *text_undo = GIMP_TEXT_UNDO (undo);
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GimpTextLayer *layer = GIMP_TEXT_LAYER (GIMP_ITEM_UNDO (undo)->item);
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if (text_undo->pspec)
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{
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GValue *value;
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g_return_if_fail (layer->text != NULL);
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value = g_new0 (GValue, 1);
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g_value_init (value, text_undo->pspec->value_type);
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g_object_get_property (G_OBJECT (layer->text),
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text_undo->pspec->name, value);
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g_object_set_property (G_OBJECT (layer->text),
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text_undo->pspec->name, text_undo->value);
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g_value_unset (text_undo->value);
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g_free (text_undo->value);
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text_undo->value = value;
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}
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else
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{
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GimpText *text;
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text = (layer->text ?
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gimp_config_duplicate (GIMP_CONFIG (layer->text)) : NULL);
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if (layer->text && text_undo->text)
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gimp_config_sync (GIMP_CONFIG (text_undo->text),
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GIMP_CONFIG (layer->text), 0);
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else
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gimp_text_layer_set_text (layer, text_undo->text);
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if (text_undo->text)
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g_object_unref (text_undo->text);
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text_undo->text = text;
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}
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GIMP_UNDO_CLASS (parent_class)->pop (undo, undo_mode, accum);
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}
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static void
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gimp_text_undo_free (GimpUndo *undo,
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GimpUndoMode undo_mode)
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{
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GimpTextUndo *text_undo = GIMP_TEXT_UNDO (undo);
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if (text_undo->text)
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{
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g_object_unref (text_undo->text);
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text_undo->text = NULL;
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}
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if (text_undo->pspec)
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{
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g_value_unset (text_undo->value);
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g_free (text_undo->value);
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text_undo->value = NULL;
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text_undo->pspec = NULL;
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}
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GIMP_UNDO_CLASS (parent_class)->free (undo, undo_mode);
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}
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GimpUndo *
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gimp_text_undo_new (GimpTextLayer *layer,
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const GParamSpec *pspec,
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const gchar *name)
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{
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GimpUndo *undo;
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GimpTextUndo *text_undo;
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g_return_val_if_fail (GIMP_IS_TEXT_LAYER (layer), NULL);
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g_return_val_if_fail (pspec == NULL ||
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pspec->owner_type == GIMP_TYPE_TEXT, NULL);
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g_return_val_if_fail (pspec == NULL || layer->text != NULL, NULL);
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if (! name)
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name = gimp_undo_type_to_name (GIMP_UNDO_TEXT_LAYER);
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undo = g_object_new (GIMP_TYPE_TEXT_UNDO,
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"name", name,
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NULL);
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undo->gimage = gimp_item_get_image (GIMP_ITEM (layer));
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undo->undo_type = GIMP_UNDO_TEXT_LAYER;
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undo->size = 0;
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undo->dirties_image = TRUE;
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GIMP_ITEM_UNDO (undo)->item = g_object_ref (layer);
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text_undo = GIMP_TEXT_UNDO (undo);
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text_undo->time = time (NULL);
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if (pspec)
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{
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text_undo->pspec = pspec;
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text_undo->value = g_new0 (GValue, 1);
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g_value_init (text_undo->value, pspec->value_type);
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g_object_get_property (G_OBJECT (layer->text),
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pspec->name, text_undo->value);
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}
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else if (layer->text)
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{
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text_undo->text = gimp_config_duplicate (GIMP_CONFIG (layer->text));
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}
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return undo;
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}
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