mirror of https://github.com/GNOME/gimp.git
338 lines
7.2 KiB
C
338 lines
7.2 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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* gimpdata.c
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* Copyright (C) 2001 Michael Natterer <mitch@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 <ctype.h>
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#include <errno.h>
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#include <stdio.h>
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#include <string.h>
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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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 "gimpdata.h"
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#include "gimpmarshal.h"
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enum
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{
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DIRTY,
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SAVE,
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GET_EXTENSION,
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DUPLICATE,
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LAST_SIGNAL
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};
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static void gimp_data_class_init (GimpDataClass *klass);
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static void gimp_data_init (GimpData *data);
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static void gimp_data_finalize (GObject *object);
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static void gimp_data_name_changed (GimpObject *object);
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static void gimp_data_real_dirty (GimpData *data);
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static guint data_signals[LAST_SIGNAL] = { 0 };
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static GimpViewableClass *parent_class = NULL;
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GType
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gimp_data_get_type (void)
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{
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static GType data_type = 0;
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if (! data_type)
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{
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static const GTypeInfo data_info =
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{
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sizeof (GimpDataClass),
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(GBaseInitFunc) NULL,
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(GBaseFinalizeFunc) NULL,
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(GClassInitFunc) gimp_data_class_init,
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NULL, /* class_finalize */
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NULL, /* class_data */
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sizeof (GimpData),
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0, /* n_preallocs */
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(GInstanceInitFunc) gimp_data_init,
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};
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data_type = g_type_register_static (GIMP_TYPE_VIEWABLE,
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"GimpData",
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&data_info, 0);
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}
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return data_type;
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}
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static void
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gimp_data_class_init (GimpDataClass *klass)
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{
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GObjectClass *object_class;
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GimpObjectClass *gimp_object_class;
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object_class = G_OBJECT_CLASS (klass);
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gimp_object_class = GIMP_OBJECT_CLASS (klass);
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parent_class = g_type_class_peek_parent (klass);
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data_signals[DIRTY] =
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g_signal_new ("dirty",
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G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_FIRST,
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G_STRUCT_OFFSET (GimpDataClass, dirty),
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NULL, NULL,
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gimp_marshal_VOID__VOID,
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G_TYPE_NONE, 0);
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data_signals[SAVE] =
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g_signal_new ("save",
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G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (GimpDataClass, save),
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NULL, NULL,
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gimp_marshal_BOOLEAN__VOID,
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G_TYPE_BOOLEAN, 0);
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data_signals[GET_EXTENSION] =
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g_signal_new ("get_extension",
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G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (GimpDataClass, get_extension),
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NULL, NULL,
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gimp_marshal_POINTER__VOID,
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G_TYPE_POINTER, 0);
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data_signals[DUPLICATE] =
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g_signal_new ("duplicate",
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G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (GimpDataClass, duplicate),
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NULL, NULL,
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gimp_marshal_POINTER__VOID,
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G_TYPE_POINTER, 0);
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object_class->finalize = gimp_data_finalize;
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gimp_object_class->name_changed = gimp_data_name_changed;
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klass->dirty = gimp_data_real_dirty;
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klass->save = NULL;
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klass->get_extension = NULL;
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klass->duplicate = NULL;
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}
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static void
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gimp_data_init (GimpData *data)
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{
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data->filename = NULL;
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data->dirty = FALSE;
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}
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static void
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gimp_data_finalize (GObject *object)
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{
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GimpData *data;
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data = GIMP_DATA (object);
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if (data->filename)
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{
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g_free (data->filename);
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data->filename = NULL;
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}
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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static void
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gimp_data_name_changed (GimpObject *object)
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{
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if (GIMP_OBJECT_CLASS (parent_class)->name_changed)
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GIMP_OBJECT_CLASS (parent_class)->name_changed (object);
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gimp_data_dirty (GIMP_DATA (object));
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}
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gboolean
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gimp_data_save (GimpData *data)
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{
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gboolean success = FALSE;
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g_return_val_if_fail (GIMP_IS_DATA (data), FALSE);
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if (! data->filename)
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{
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g_warning ("%s(): can't save data with NULL filename",
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G_GNUC_FUNCTION);
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return FALSE;
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}
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g_signal_emit (G_OBJECT (data), data_signals[SAVE], 0,
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&success);
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if (success)
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data->dirty = FALSE;
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return success;
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}
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void
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gimp_data_dirty (GimpData *data)
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{
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g_return_if_fail (GIMP_IS_DATA (data));
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g_signal_emit (G_OBJECT (data), data_signals[DIRTY], 0);
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}
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static void
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gimp_data_real_dirty (GimpData *data)
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{
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data->dirty = TRUE;
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gimp_viewable_invalidate_preview (GIMP_VIEWABLE (data));
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}
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gboolean
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gimp_data_delete_from_disk (GimpData *data)
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{
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g_return_val_if_fail (GIMP_IS_DATA (data), FALSE);
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g_return_val_if_fail (data->filename != NULL, FALSE);
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if (unlink (data->filename) == -1)
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{
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g_message ("%s(): could not unlink() %s: %s",
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G_GNUC_FUNCTION, data->filename, g_strerror (errno));
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return FALSE;
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}
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return TRUE;
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}
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const gchar *
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gimp_data_get_extension (GimpData *data)
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{
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const gchar *extension = NULL;
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g_return_val_if_fail (GIMP_IS_DATA (data), NULL);
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g_signal_emit (G_OBJECT (data), data_signals[GET_EXTENSION], 0,
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&extension);
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return extension;
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}
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void
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gimp_data_set_filename (GimpData *data,
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const gchar *filename)
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{
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g_return_if_fail (GIMP_IS_DATA (data));
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g_free (data->filename);
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data->filename = g_strdup (filename);
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}
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void
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gimp_data_create_filename (GimpData *data,
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const gchar *basename,
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const gchar *data_path)
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{
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GList *path;
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gchar *dir;
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gchar *filename;
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gchar *fullpath;
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gchar *safe_name;
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gint i;
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gint unum = 1;
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FILE *file;
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g_return_if_fail (GIMP_IS_DATA (data));
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g_return_if_fail (basename != NULL);
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g_return_if_fail (data_path != NULL);
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path = gimp_path_parse (data_path, 16, TRUE, NULL);
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dir = gimp_path_get_user_writable_dir (path);
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gimp_path_free (path);
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if (! dir)
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return;
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safe_name = g_strdup (basename);
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if (safe_name[0] == '.')
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safe_name[0] = '_';
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for (i = 0; safe_name[i]; i++)
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if (safe_name[i] == G_DIR_SEPARATOR || isspace (safe_name[i]))
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safe_name[i] = '_';
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filename = g_strdup_printf ("%s%s",
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safe_name,
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gimp_data_get_extension (data));
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fullpath = g_build_filename (dir, filename, NULL);
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g_free (filename);
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while ((file = fopen (fullpath, "r")))
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{
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fclose (file);
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g_free (fullpath);
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filename = g_strdup_printf ("%s_%d%s",
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safe_name,
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unum,
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gimp_data_get_extension (data));
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fullpath = g_build_filename (dir, filename, NULL);
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g_free (filename);
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unum++;
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}
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g_free (dir);
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g_free (safe_name);
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gimp_data_set_filename (data, fullpath);
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g_free (fullpath);
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}
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GimpData *
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gimp_data_duplicate (GimpData *data)
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{
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GimpData *new_data = NULL;
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g_signal_emit (G_OBJECT (data), data_signals[DUPLICATE], 0,
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&new_data);
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return new_data;
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}
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