5943f03135
2003-07-04 Henrik Brix Andersen <brix@gimp.org> Added persistent storage of image grid in XCF files. * app/core/gimpimage.[ch]: removed gimp_image_get_grid() and gimp_image_set_grid() ... * app/core/Makefile.am * app/core/gimpimage-grid.[ch]: ... and added them to these new files. Added gimp_grid_parasite_name(), gimp_grid_to_parasite() and gimp_grid_from_parasite() functions. * app/core/gimpimage-snap.c * app/gui/grid-dialog.c: #include "gimpimage-grid.h" * app/core/gimpimage-undo-push.c: #include "gimpimage-grid.h". (gimp_image_undo_push_image_grid) mark image as dirty. * app/xcf/xcf-save.c (xcf_save_image_props): save GimpGrid object as a parasite. * app/xcf/xcf-load.c (xcf_load_image): load GimpGrid from parasite. * devel-docs/parasites.txt: documented the new "gimp-image-grid" parasite.
130 lines
3.3 KiB
C
130 lines
3.3 KiB
C
/* 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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* GimpGrid
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* Copyright (C) 2003 Henrik Brix Andersen <brix@gimp.org>
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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 <string.h>
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#include <glib-object.h>
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#include "libgimpbase/gimpbase.h"
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#include "core-types.h"
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#include "config/gimpconfig.h"
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#include "gimp.h"
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#include "gimpgrid.h"
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#include "gimpimage.h"
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#include "gimpimage-grid.h"
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#include "gimpimage-undo.h"
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#include "gimpimage-undo-push.h"
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#include "gimp-intl.h"
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GimpGrid *
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gimp_image_get_grid (GimpImage *gimage)
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{
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g_return_val_if_fail (GIMP_IS_IMAGE (gimage), NULL);
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return gimage->grid;
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}
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void
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gimp_image_set_grid (GimpImage *gimage,
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GimpGrid *grid,
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gboolean push_undo)
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{
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g_return_if_fail (GIMP_IS_IMAGE (gimage));
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g_return_if_fail (grid == NULL || GIMP_IS_GRID (grid));
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if (grid != gimage->grid)
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{
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if (push_undo)
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gimp_image_undo_push_image_grid (gimage, _("Grid"), gimage->grid);
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if (gimage->grid)
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g_object_unref (gimage->grid);
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gimage->grid = grid;
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if (gimage->grid)
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g_object_ref (gimage->grid);
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}
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gimp_image_grid_changed (gimage);
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}
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const gchar *
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gimp_grid_parasite_name (void)
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{
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return "gimp-image-grid";
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}
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GimpParasite *
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gimp_grid_to_parasite (const GimpGrid *grid)
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{
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GimpParasite *parasite;
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gchar *str;
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g_return_val_if_fail (GIMP_IS_GRID (grid), NULL);
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str = gimp_config_serialize_to_string (G_OBJECT (grid), NULL);
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g_return_val_if_fail (str != NULL, NULL);
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parasite = gimp_parasite_new (gimp_grid_parasite_name (),
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GIMP_PARASITE_PERSISTENT,
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strlen (str) + 1, str);
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g_free (str);
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return parasite;
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}
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GimpGrid *
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gimp_grid_from_parasite (const GimpParasite *parasite)
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{
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GimpGrid *grid;
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const gchar *str;
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GError *error = NULL;
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g_return_val_if_fail (parasite != NULL, NULL);
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g_return_val_if_fail (strcmp (gimp_parasite_name (parasite),
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gimp_grid_parasite_name ()) == 0, NULL);
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str = gimp_parasite_data (parasite);
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g_return_val_if_fail (str != NULL, NULL);
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grid = g_object_new (GIMP_TYPE_GRID, NULL);
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if (! gimp_config_deserialize_string (G_OBJECT (grid),
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str,
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gimp_parasite_data_size (parasite),
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NULL,
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&error))
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{
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g_warning ("Failed to deserialize grid parasite: %s", error->message);
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g_error_free (error);
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}
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return grid;
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}
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