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gimp/plug-ins/file-uri/uri.c

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/* GIMP - The GNU 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 3 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, see <http://www.gnu.org/licenses/>.
*/
/* Author: Josh MacDonald. */
#include "config.h"
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <glib/gstdio.h>
#include <libgimp/gimp.h>
#include <libgimp/gimpui.h>
#include "uri-backend.h"
#include "libgimp/stdplugins-intl.h"
#define LOAD_PROC "file-uri-load"
#define SAVE_PROC "file-uri-save"
#define PLUG_IN_BINARY "file-uri"
static void query (void);
static void run (const gchar *name,
gint nparams,
const GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals);
static gint32 load_image (const gchar *uri,
GimpRunMode run_mode,
GError **error);
static GimpPDBStatusType save_image (const gchar *uri,
gint32 image_ID,
gint32 drawable_ID,
gint32 run_mode,
GError **error);
static gchar * get_temp_name (const gchar *uri,
gboolean *name_image);
static gboolean valid_file (const gchar *filename);
const GimpPlugInInfo PLUG_IN_INFO =
{
NULL, /* init_proc */
NULL, /* quit_proc */
query, /* query_proc */
run, /* run_proc */
};
MAIN ()
static void
query (void)
{
static const GimpParamDef load_args[] =
{
{ GIMP_PDB_INT32, "run-mode", "The run mode { RUN-INTERACTIVE (0), RUN-NONINTERACTIVE (1) }" },
{ GIMP_PDB_STRING, "filename", "The name of the file to load" },
{ GIMP_PDB_STRING, "raw-filename", "The name entered" }
};
static const GimpParamDef load_return_vals[] =
{
{ GIMP_PDB_IMAGE, "image", "Output image" }
};
static const GimpParamDef save_args[] =
{
{ GIMP_PDB_INT32, "run-mode", "The run mode { RUN-INTERACTIVE (0), RUN-NONINTERACTIVE (1) }" },
{ GIMP_PDB_IMAGE, "image", "Input image" },
{ GIMP_PDB_DRAWABLE, "drawable", "Drawable to save" },
{ GIMP_PDB_STRING, "filename", "The name of the file to save the image in" },
{ GIMP_PDB_STRING, "raw-filename", "The name of the file to save the image in" }
};
GError *error = NULL;
if (! uri_backend_init (PLUG_IN_BINARY, FALSE, 0, &error))
{
g_message ("%s", error->message);
g_clear_error (&error);
return;
}
if (uri_backend_get_load_protocols ())
{
gimp_install_procedure (LOAD_PROC,
"loads files given an URI",
uri_backend_get_load_help (),
"Spencer Kimball & Peter Mattis",
"Spencer Kimball & Peter Mattis",
"1995-2008",
N_("URI"),
NULL,
GIMP_PLUGIN,
G_N_ELEMENTS (load_args),
G_N_ELEMENTS (load_return_vals),
load_args, load_return_vals);
gimp_plugin_icon_register (LOAD_PROC, GIMP_ICON_TYPE_STOCK_ID,
(const guint8 *) GIMP_STOCK_WEB);
gimp_register_load_handler (LOAD_PROC,
"", uri_backend_get_load_protocols ());
}
if (uri_backend_get_save_protocols ())
{
gimp_install_procedure (SAVE_PROC,
"saves files given an URI",
uri_backend_get_save_help (),
"Michael Natterer, Sven Neumann",
"Michael Natterer",
"2005-2008",
N_("URI"),
"RGB*, GRAY*, INDEXED*",
GIMP_PLUGIN,
G_N_ELEMENTS (save_args), 0,
save_args, NULL);
gimp_plugin_icon_register (SAVE_PROC, GIMP_ICON_TYPE_STOCK_ID,
(const guint8 *) GIMP_STOCK_WEB);
gimp_register_save_handler (SAVE_PROC,
"", uri_backend_get_save_protocols ());
}
uri_backend_shutdown ();
}
static void
run (const gchar *name,
gint nparams,
const GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals)
{
static GimpParam values[2];
GimpRunMode run_mode;
GimpPDBStatusType status = GIMP_PDB_EXECUTION_ERROR;
gint32 image_ID;
GError *error = NULL;
run_mode = param[0].data.d_int32;
*nreturn_vals = 1;
*return_vals = values;
values[0].type = GIMP_PDB_STATUS;
values[0].data.d_status = status;
if (! uri_backend_init (PLUG_IN_BINARY, TRUE, run_mode, &error))
{
if (error)
{
*nreturn_vals = 2;
values[1].type = GIMP_PDB_STRING;
values[1].data.d_string = error->message;
}
return;
}
/* We handle PDB errors by forwarding them to the caller in
* our return values.
*/
gimp_plugin_set_pdb_error_handler (GIMP_PDB_ERROR_HANDLER_PLUGIN);
if (! strcmp (name, LOAD_PROC) && uri_backend_get_load_protocols ())
{
image_ID = load_image (param[2].data.d_string, run_mode, &error);
if (image_ID != -1)
{
status = GIMP_PDB_SUCCESS;
*nreturn_vals = 2;
values[1].type = GIMP_PDB_IMAGE;
values[1].data.d_image = image_ID;
}
}
else if (! strcmp (name, SAVE_PROC) && uri_backend_get_save_protocols ())
{
status = save_image (param[3].data.d_string,
param[1].data.d_int32,
param[2].data.d_int32,
run_mode, &error);
}
else
{
status = GIMP_PDB_CALLING_ERROR;
}
uri_backend_shutdown ();
if (status != GIMP_PDB_SUCCESS && error)
{
*nreturn_vals = 2;
values[1].type = GIMP_PDB_STRING;
values[1].data.d_string = error->message;
}
values[0].data.d_status = status;
}
static gint32
load_image (const gchar *uri,
GimpRunMode run_mode,
GError **error)
{
gchar *tmpname = NULL;
gint32 image_ID = -1;
gboolean name_image = FALSE;
gboolean mapped;
tmpname = uri_backend_map_image (uri, run_mode);
if (tmpname)
{
mapped = TRUE;
}
else
{
tmpname = get_temp_name (uri, &name_image);
if (! uri_backend_load_image (uri, tmpname, run_mode, error))
return -1;
}
image_ID = gimp_file_load (run_mode, tmpname, tmpname);
if (image_ID != -1)
{
if (mapped || name_image)
gimp_image_set_filename (image_ID, uri);
else
gimp_image_set_filename (image_ID, "");
}
else
{
g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED,
"%s", gimp_get_pdb_error ());
}
if (! mapped)
g_unlink (tmpname);
g_free (tmpname);
return image_ID;
}
static GimpPDBStatusType
save_image (const gchar *uri,
gint32 image_ID,
gint32 drawable_ID,
gint32 run_mode,
GError **error)
{
GimpPDBStatusType status = GIMP_PDB_EXECUTION_ERROR;
gchar *tmpname;
gboolean mapped;
tmpname = uri_backend_map_image (uri, run_mode);
if (tmpname)
mapped = TRUE;
else
tmpname = get_temp_name (uri, NULL);
if (gimp_file_save (run_mode,
image_ID,
drawable_ID,
tmpname,
tmpname) && valid_file (tmpname))
{
if (mapped || uri_backend_save_image (uri, tmpname, run_mode, error))
{
status = GIMP_PDB_SUCCESS;
}
}
else
{
g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED,
"%s", gimp_get_pdb_error ());
}
if (! mapped)
g_unlink (tmpname);
g_free (tmpname);
return status;
}
static gchar *
get_temp_name (const gchar *uri,
gboolean *name_image)
{
gchar *basename;
gchar *tmpname = NULL;
if (name_image)
*name_image = FALSE;
basename = g_path_get_basename (uri);
if (basename)
{
gchar *ext = strchr (basename, '.');
if (ext && strlen (ext))
{
tmpname = gimp_temp_name (ext + 1);
if (name_image)
*name_image = TRUE;
}
g_free (basename);
}
if (! tmpname)
tmpname = gimp_temp_name ("xxx");
return tmpname;
}
static gboolean
valid_file (const gchar *filename)
{
struct stat buf;
return g_stat (filename, &buf) == 0 && buf.st_size > 0;
}
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