PIKApp/app/core/pika-templates.c

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2023-09-26 00:35:21 +02:00
/* PIKA - Photo and Image Kooker Application
* a rebranding of The GNU Image Manipulation Program (created with heckimp)
* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
*
* Original copyright, applying to most contents (license remains unchanged):
* Copyright (C) 1995-1997 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 <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <string.h>
#include <gdk-pixbuf/gdk-pixbuf.h>
#include <gegl.h>
#include "libpikabase/pikabase.h"
#include "libpikaconfig/pikaconfig.h"
#include "core-types.h"
#include "pika.h"
#include "pika-templates.h"
#include "pikalist.h"
#include "pikatemplate.h"
/* functions to load and save the pika templates files */
void
pika_templates_load (Pika *pika)
{
GFile *file;
GError *error = NULL;
g_return_if_fail (PIKA_IS_PIKA (pika));
g_return_if_fail (PIKA_IS_LIST (pika->templates));
file = pika_directory_file ("templaterc", NULL);
if (pika->be_verbose)
g_print ("Parsing '%s'\n", pika_file_get_utf8_name (file));
if (! pika_config_deserialize_file (PIKA_CONFIG (pika->templates),
file, NULL, &error))
{
if (error->code == PIKA_CONFIG_ERROR_OPEN_ENOENT)
{
g_clear_error (&error);
g_object_unref (file);
if (g_getenv ("PIKA_TESTING_ABS_TOP_SRCDIR"))
{
gchar *path;
path = g_build_filename (g_getenv ("PIKA_TESTING_ABS_TOP_SRCDIR"),
"etc", "templaterc", NULL);
file = g_file_new_for_path (path);
g_free (path);
}
else
{
file = pika_sysconf_directory_file ("templaterc", NULL);
}
if (! pika_config_deserialize_file (PIKA_CONFIG (pika->templates),
file, NULL, &error))
{
pika_message_literal (pika, NULL, PIKA_MESSAGE_ERROR,
error->message);
}
}
else
{
pika_message_literal (pika, NULL, PIKA_MESSAGE_ERROR, error->message);
}
g_clear_error (&error);
}
pika_list_reverse (PIKA_LIST (pika->templates));
g_object_unref (file);
}
void
pika_templates_save (Pika *pika)
{
const gchar *header =
"PIKA templaterc\n"
"\n"
"This file will be entirely rewritten each time you exit.";
const gchar *footer =
"end of templaterc";
GFile *file;
GError *error = NULL;
g_return_if_fail (PIKA_IS_PIKA (pika));
g_return_if_fail (PIKA_IS_LIST (pika->templates));
file = pika_directory_file ("templaterc", NULL);
if (pika->be_verbose)
g_print ("Writing '%s'\n", pika_file_get_utf8_name (file));
if (! pika_config_serialize_to_file (PIKA_CONFIG (pika->templates),
file,
header, footer, NULL,
&error))
{
pika_message_literal (pika, NULL, PIKA_MESSAGE_ERROR, error->message);
g_error_free (error);
}
g_object_unref (file);
}
/* just like pika_list_get_child_by_name() but matches case-insensitive
* and dpi/ppi-insensitive
*/
static PikaObject *
pika_templates_migrate_get_child_by_name (PikaContainer *container,
const gchar *name)
{
PikaList *list = PIKA_LIST (container);
PikaObject *retval = NULL;
GList *glist;
for (glist = list->queue->head; glist; glist = g_list_next (glist))
{
PikaObject *object = glist->data;
gchar *str1 = g_ascii_strdown (pika_object_get_name (object), -1);
gchar *str2 = g_ascii_strdown (name, -1);
if (! strcmp (str1, str2))
{
retval = object;
}
else
{
gchar *dpi = strstr (str1, "dpi");
if (dpi)
{
memcpy (dpi, "ppi", 3);
g_print ("replaced: %s\n", str1);
if (! strcmp (str1, str2))
retval = object;
}
}
g_free (str1);
g_free (str2);
}
return retval;
}
/**
* pika_templates_migrate:
* @olddir: the old user directory
*
* Migrating the templaterc from PIKA 2.0 to PIKA 2.2 needs this special
* hack since we changed the way that units are handled. This function
* merges the user's templaterc with the systemwide templaterc. The goal
* is to replace the unit for a couple of default templates with "pixels".
**/
void
pika_templates_migrate (const gchar *olddir)
{
PikaContainer *templates = pika_list_new (PIKA_TYPE_TEMPLATE, TRUE);
GFile *file = pika_directory_file ("templaterc", NULL);
if (pika_config_deserialize_file (PIKA_CONFIG (templates), file,
NULL, NULL))
{
GFile *sysconf_file;
sysconf_file = pika_sysconf_directory_file ("templaterc", NULL);
if (olddir && (strstr (olddir, "2.0") || strstr (olddir, "2.2")))
{
/* We changed the spelling of a couple of template names:
*
* - from upper to lower case between 2.0 and 2.2
* - from "dpi" to "ppi" between 2.2 and 2.4
*/
PikaContainerClass *class = PIKA_CONTAINER_GET_CLASS (templates);
gpointer func = class->get_child_by_name;
class->get_child_by_name = pika_templates_migrate_get_child_by_name;
pika_config_deserialize_file (PIKA_CONFIG (templates),
sysconf_file, NULL, NULL);
class->get_child_by_name = func;
}
else
{
pika_config_deserialize_file (PIKA_CONFIG (templates),
sysconf_file, NULL, NULL);
}
g_object_unref (sysconf_file);
pika_list_reverse (PIKA_LIST (templates));
pika_config_serialize_to_file (PIKA_CONFIG (templates), file,
NULL, NULL, NULL, NULL);
}
g_object_unref (file);
}