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gimp/app/xcf/xcf.c

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/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* 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 2 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <glib-object.h>
#include <glib/gstdio.h>
#include "libgimpbase/gimpbase.h"
#include "core/core-types.h"
#include "core/gimp.h"
#include "core/gimpimage.h"
#include "core/gimpparamspecs.h"
#include "core/gimpprogress.h"
#include "plug-in/gimppluginmanager.h"
#include "plug-in/gimppluginprocedure.h"
#include "xcf.h"
#include "xcf-private.h"
#include "xcf-load.h"
#include "xcf-read.h"
#include "xcf-save.h"
#include "gimp-intl.h"
typedef GimpImage * GimpXcfLoaderFunc (Gimp *gimp,
XcfInfo *info);
static GValueArray * xcf_load_invoker (GimpProcedure *procedure,
Gimp *gimp,
GimpContext *context,
GimpProgress *progress,
const GValueArray *args);
static GValueArray * xcf_save_invoker (GimpProcedure *procedure,
Gimp *gimp,
GimpContext *context,
GimpProgress *progress,
const GValueArray *args);
static GimpXcfLoaderFunc * const xcf_loaders[] =
{
xcf_load_image, /* version 0 */
xcf_load_image, /* version 1 */
xcf_load_image /* version 2 */
};
void
xcf_init (Gimp *gimp)
{
GimpPlugInProcedure *proc;
GimpProcedure *procedure;
g_return_if_fail (GIMP_IS_GIMP (gimp));
/* So this is sort of a hack, but its better than it was before. To
* do this right there would be a file load-save handler type and
* the whole interface would change but there isn't, and currently
* the plug-in structure contains all the load-save info, so it
* makes sense to use that for the XCF load/save handlers, even
* though they are internal. The only thing it requires is using a
* PlugInProcDef struct. -josh
*/
/* gimp-xcf-save */
procedure = gimp_plug_in_procedure_new (GIMP_PLUGIN, "gimp-xcf-save");
procedure->proc_type = GIMP_INTERNAL;
procedure->marshal_func = xcf_save_invoker;
proc = GIMP_PLUG_IN_PROCEDURE (procedure);
proc->menu_label = g_strdup (N_("GIMP XCF image"));
gimp_plug_in_procedure_set_icon (proc, GIMP_ICON_TYPE_STOCK_ID,
(const guint8 *) "gimp-wilber",
strlen ("gimp-wilber") + 1);
gimp_plug_in_procedure_set_image_types (proc, "RGB*, GRAY*, INDEXED*");
gimp_plug_in_procedure_set_file_proc (proc, "xcf", "", NULL);
gimp_plug_in_procedure_set_mime_type (proc, "image/xcf");
gimp_object_set_static_name (GIMP_OBJECT (procedure), "gimp-xcf-save");
gimp_procedure_set_static_strings (procedure,
"gimp-xcf-save",
"Saves file in the .xcf file format",
"The XCF file format has been designed "
"specifically for loading and saving "
"tiled and layered images in the GIMP. "
"This procedure will save the specified "
"image in the xcf file format.",
"Spencer Kimball & Peter Mattis",
"Spencer Kimball & Peter Mattis",
"1995-1996",
NULL);
gimp_procedure_add_argument (procedure,
gimp_param_spec_int32 ("dummy-param",
"Dummy Param",
"Dummy parameter",
G_MININT32, G_MAXINT32, 0,
GIMP_PARAM_READWRITE));
gimp_procedure_add_argument (procedure,
gimp_param_spec_image_id ("image",
"Image",
"Input image",
gimp, FALSE,
GIMP_PARAM_READWRITE));
gimp_procedure_add_argument (procedure,
gimp_param_spec_drawable_id ("drawable",
"Drawable",
"Active drawable of input image",
gimp, TRUE,
GIMP_PARAM_READWRITE));
gimp_procedure_add_argument (procedure,
gimp_param_spec_string ("filename",
"Filename",
"The name of the file "
"to save the image in, "
"in the on-disk "
"character set and "
"encoding",
TRUE, FALSE, NULL,
GIMP_PARAM_READWRITE));
gimp_procedure_add_argument (procedure,
gimp_param_spec_string ("raw-filename",
"Raw filename",
"The basename of the "
"file, in UTF-8",
FALSE, FALSE, NULL,
GIMP_PARAM_READWRITE));
gimp_plug_in_manager_add_procedure (gimp->plug_in_manager, proc);
g_object_unref (procedure);
/* gimp-xcf-load */
procedure = gimp_plug_in_procedure_new (GIMP_PLUGIN, "gimp-xcf-load");
procedure->proc_type = GIMP_INTERNAL;
procedure->marshal_func = xcf_load_invoker;
proc = GIMP_PLUG_IN_PROCEDURE (procedure);
proc->menu_label = g_strdup (N_("GIMP XCF image"));
gimp_plug_in_procedure_set_icon (proc, GIMP_ICON_TYPE_STOCK_ID,
(const guint8 *) "gimp-wilber",
strlen ("gimp-wilber") + 1);
gimp_plug_in_procedure_set_image_types (proc, NULL);
gimp_plug_in_procedure_set_file_proc (proc, "xcf", "",
"0,string,gimp\\040xcf\\040");
gimp_plug_in_procedure_set_mime_type (proc, "image/xcf");
gimp_object_set_static_name (GIMP_OBJECT (procedure), "gimp-xcf-load");
gimp_procedure_set_static_strings (procedure,
"gimp-xcf-load",
"Loads file saved in the .xcf file format",
"The XCF file format has been designed "
"specifically for loading and saving "
"tiled and layered images in the GIMP. "
"This procedure will load the specified "
"file.",
"Spencer Kimball & Peter Mattis",
"Spencer Kimball & Peter Mattis",
"1995-1996",
NULL);
gimp_procedure_add_argument (procedure,
gimp_param_spec_int32 ("dummy-param",
"Dummy Param",
"Dummy parameter",
G_MININT32, G_MAXINT32, 0,
GIMP_PARAM_READWRITE));
gimp_procedure_add_argument (procedure,
gimp_param_spec_string ("filename",
"Filename",
"The name of the file "
"to load, in the "
"on-disk character "
"set and encoding",
TRUE, FALSE, NULL,
GIMP_PARAM_READWRITE));
gimp_procedure_add_argument (procedure,
gimp_param_spec_string ("raw-filename",
"Raw filename",
"The basename of the "
"file, in UTF-8",
FALSE, FALSE, NULL,
GIMP_PARAM_READWRITE));
gimp_procedure_add_return_value (procedure,
gimp_param_spec_image_id ("image",
"Image",
"Output image",
gimp, FALSE,
GIMP_PARAM_READWRITE));
gimp_plug_in_manager_add_procedure (gimp->plug_in_manager, proc);
g_object_unref (procedure);
}
void
xcf_exit (Gimp *gimp)
{
g_return_if_fail (GIMP_IS_GIMP (gimp));
}
static GValueArray *
xcf_load_invoker (GimpProcedure *procedure,
Gimp *gimp,
GimpContext *context,
GimpProgress *progress,
const GValueArray *args)
{
XcfInfo info;
GValueArray *return_vals;
GimpImage *image = NULL;
const gchar *filename;
gboolean success = FALSE;
gchar id[14];
gimp_set_busy (gimp);
filename = g_value_get_string (&args->values[1]);
info.fp = g_fopen (filename, "rb");
if (info.fp)
{
info.gimp = gimp;
info.progress = progress;
info.cp = 0;
info.filename = filename;
info.tattoo_state = 0;
info.active_layer = NULL;
info.active_channel = NULL;
info.floating_sel_drawable = NULL;
info.floating_sel = NULL;
info.floating_sel_offset = 0;
info.swap_num = 0;
info.ref_count = NULL;
info.compression = COMPRESS_NONE;
if (progress)
{
gchar *name = g_filename_display_name (filename);
gchar *msg = g_strdup_printf (_("Opening '%s'"), name);
gimp_progress_start (progress, msg, FALSE);
g_free (msg);
g_free (name);
}
success = TRUE;
info.cp += xcf_read_int8 (info.fp, (guint8 *) id, 14);
if (strncmp (id, "gimp xcf ", 9) != 0)
{
success = FALSE;
}
else if (strcmp (id + 9, "file") == 0)
{
info.file_version = 0;
}
else if (id[9] == 'v')
{
info.file_version = atoi (id + 10);
}
else
{
success = FALSE;
}
if (success)
{
if (info.file_version >= 0 &&
info.file_version < G_N_ELEMENTS (xcf_loaders))
{
image = (*(xcf_loaders[info.file_version])) (gimp, &info);
if (! image)
success = FALSE;
}
else
{
gimp_message (gimp, G_OBJECT (progress), GIMP_MESSAGE_ERROR,
_("XCF error: unsupported XCF file version %d "
"encountered"), info.file_version);
success = FALSE;
}
}
fclose (info.fp);
if (progress)
gimp_progress_end (progress);
}
else
{
gimp_message (gimp, G_OBJECT (progress), GIMP_MESSAGE_ERROR,
_("Could not open '%s' for reading: %s"),
gimp_filename_to_utf8 (filename), g_strerror (errno));
}
return_vals = gimp_procedure_get_return_values (procedure, success);
if (success)
gimp_value_set_image (&return_vals->values[1], image);
gimp_unset_busy (gimp);
return return_vals;
}
static GValueArray *
xcf_save_invoker (GimpProcedure *procedure,
Gimp *gimp,
GimpContext *context,
GimpProgress *progress,
const GValueArray *args)
{
XcfInfo info;
GValueArray *return_vals;
GimpImage *image;
const gchar *filename;
gboolean success = FALSE;
gimp_set_busy (gimp);
image = gimp_value_get_image (&args->values[1], gimp);
filename = g_value_get_string (&args->values[3]);
info.fp = g_fopen (filename, "wb");
if (info.fp)
{
info.gimp = gimp;
info.progress = progress;
info.cp = 0;
info.filename = filename;
info.active_layer = NULL;
info.active_channel = NULL;
info.floating_sel_drawable = NULL;
info.floating_sel = NULL;
info.floating_sel_offset = 0;
info.swap_num = 0;
info.ref_count = NULL;
info.compression = COMPRESS_RLE;
if (progress)
{
gchar *name = g_filename_display_name (filename);
gchar *msg = g_strdup_printf (_("Saving '%s'"), name);
gimp_progress_start (progress, msg, FALSE);
g_free (msg);
g_free (name);
}
xcf_save_choose_format (&info, image);
success = xcf_save_image (&info, image);
if (fclose (info.fp) == EOF)
{
gimp_message (gimp, G_OBJECT (progress), GIMP_MESSAGE_ERROR,
_("Error saving XCF file: %s"), g_strerror (errno));
success = FALSE;
}
if (progress)
gimp_progress_end (progress);
}
else
{
gimp_message (gimp, G_OBJECT (progress), GIMP_MESSAGE_ERROR,
_("Could not open '%s' for writing: %s"),
gimp_filename_to_utf8 (filename), g_strerror (errno));
}
return_vals = gimp_procedure_get_return_values (procedure, success);
gimp_unset_busy (gimp);
return return_vals;
}
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