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/*
* @(#) $Id: gwycalibration.c 19108 2016-10-21 08:50:43Z yeti-dn $
* Copyright (C) 2010,2011 David Necas (Yeti), Petr Klapetek.
* E-mail: yeti@gwyddion.net, klapetek@gwyddion.net.
*
* 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., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "config.h"
#include <string.h>
#include <stdlib.h>
#include <libgwyddion/gwymacros.h>
#include <libgwyddion/gwymath.h>
#include <libgwyddion/gwyutils.h>
#include <libgwyddion/gwydebugobjects.h>
#include <libprocess/gwycalibration.h>
#include "gwyprocessinternal.h"
static void gwy_calibration_finalize (GObject *object);
static gpointer gwy_calibration_copy (gpointer);
static void gwy_calibration_use (GwyResource *resource);
static void gwy_calibration_release (GwyResource *resource);
static void gwy_calibration_sanitize (GwyCalibration *calibration);
static void gwy_calibration_dump (GwyResource *resource,
GString *str);
static GwyResource* gwy_calibration_parse (const gchar *text,
gboolean is_const);
G_DEFINE_TYPE(GwyCalibration, gwy_calibration, GWY_TYPE_RESOURCE)
static void
gwy_calibration_class_init(GwyCalibrationClass *klass)
{
GwyResourceClass *parent_class, *res_class = GWY_RESOURCE_CLASS(klass);
GObjectClass *gobject_class = G_OBJECT_CLASS(klass);
gobject_class->finalize = gwy_calibration_finalize;
parent_class = GWY_RESOURCE_CLASS(gwy_calibration_parent_class);
res_class->item_type = *gwy_resource_class_get_item_type(parent_class);
res_class->item_type.type = G_TYPE_FROM_CLASS(klass);
res_class->item_type.copy = gwy_calibration_copy;
res_class->name = "calibrations";
res_class->inventory = gwy_inventory_new(&res_class->item_type);
res_class->use = gwy_calibration_use;
res_class->release = gwy_calibration_release;
res_class->dump = gwy_calibration_dump;
res_class->parse = gwy_calibration_parse;
}
static void
gwy_calibration_init(GwyCalibration *calibration)
{
gwy_debug_objects_creation(G_OBJECT(calibration));
}
static void
gwy_calibration_finalize(GObject *object)
{
GwyCalibration *calibration = (GwyCalibration*)object;
g_free(calibration->filename);
G_OBJECT_CLASS(gwy_calibration_parent_class)->finalize(object);
}
static void
gwy_calibration_use(GwyResource *resource)
{
gchar *filename;
GError *err = NULL;
gchar *contents;
gsize len, pos = 0;
GwyCalibration *calibration;
calibration = GWY_CALIBRATION(resource);
if (calibration->caldata)
g_object_unref(calibration->caldata);
filename = g_build_filename(gwy_get_user_dir(), "caldata", calibration->filename, NULL);
// printf("loading from %s\n", filename);
if (!g_file_get_contents(filename,
&contents, &len, &err))
{
g_warning("Error loading file: %s\n", err->message);
g_clear_error(&err);
return;
}
else {
if (len)
calibration->caldata = GWY_CALDATA(gwy_serializable_deserialize(contents, len, &pos));
g_free(contents);
}
}
/**
* gwy_calibration_get_data:
* @calibration: A calibration.
*
* Obtains the data related to calibration.
*
* Returns: The data related to @calibration.
*
* Since: 2.23
**/
GwyCalData*
gwy_calibration_get_data(GwyCalibration *calibration)
{
return calibration->caldata;
}
static void
gwy_calibration_release(G_GNUC_UNUSED GwyResource *resource)
{
/*
GwyCalibration *calibration;
calibration = GWY_CALIBRATION(resource);
*/
/*here free the file*/
}
/**
* gwy_calibration_get_ndata:
* @calibration: A calibration.
*
* Returns the number of points in a calibration.
*
* Returns: The number of points in @calibration.
*
* Since: 2.23
**/
gint
gwy_calibration_get_ndata(GwyCalibration *calibration)
{
g_return_val_if_fail(GWY_IS_CALIBRATION(calibration), 0);
if (calibration->caldata)
return gwy_caldata_get_ndata(calibration->caldata);
return 0;
}
void
_gwy_calibration_class_setup_presets(void)
{
g_type_class_ref(GWY_TYPE_CALIBRATION);
}
/**
* gwy_calibration_new:
* @name: Name of resource
* @filename: Filename of associated calibration data
*
* Creates new calibration resource.
*
* Returns: A newly created calibration resource.
*
* Since: 2.23
**/
GwyCalibration*
gwy_calibration_new(const gchar *name,
const gchar *filename)
{
GwyCalibration *calibration;
gboolean is_const = 0;
g_return_val_if_fail(name, NULL);
calibration = g_object_new(GWY_TYPE_CALIBRATION, "is-const", is_const, NULL);
if (filename) calibration->filename = g_strdup(filename);
g_string_assign(GWY_RESOURCE(calibration)->name, name);
calibration->caldata = NULL;
GWY_RESOURCE(calibration)->is_modified = 0;
return calibration;
}
/**
* gwy_calibration_get_filename:
* @calibration: Calibration resource
*
* Get filename of associated calibration data.
*
* Returns: Filename of associated calibration data.
*
* Since: 2.23
**/
const gchar*
gwy_calibration_get_filename(GwyCalibration *calibration)
{
return calibration->filename;
}
static gpointer
gwy_calibration_copy(gpointer item)
{
GwyCalibration *calibration, *copy;
g_return_val_if_fail(GWY_IS_CALIBRATION(item), NULL);
calibration = GWY_CALIBRATION(item);
copy = gwy_calibration_new(gwy_resource_get_name(GWY_RESOURCE(item)),
calibration->filename);
return copy;
}
static void
gwy_calibration_dump(GwyResource *resource,
GString *str)
{
GwyCalibration *calibration;
g_return_if_fail(GWY_IS_CALIBRATION(resource));
calibration = GWY_CALIBRATION(resource);
g_string_append_printf(str, "npoints %u\nfilename %s\n", gwy_calibration_get_ndata(calibration), calibration->filename);
}
static GwyResource*
gwy_calibration_parse(const gchar *text,
G_GNUC_UNUSED gboolean is_const)
{
GwyCalibration *calibration = NULL;
GwyCalibrationClass *klass;
G_GNUC_UNUSED guint ndata = 0;
gchar *str, *p, *line, *key, *filename=NULL, *value;
g_return_val_if_fail(text, NULL);
klass = g_type_class_peek(GWY_TYPE_CALIBRATION);
g_return_val_if_fail(klass, NULL);
p = str = g_strdup(text);
while ((line = gwy_str_next_line(&p))) {
g_strstrip(line);
key = line;
if (!*key)
continue;
value = strchr(key, ' ');
if (value) {
*value = '\0';
value++;
g_strstrip(value);
}
if (!value || !*value) {
g_warning("Missing value for `%s'.", key);
continue;
}
/* Information */
if (gwy_strequal(key, "npoints"))
ndata = atoi(value);
else if (gwy_strequal(key, "filename")) {
filename = strdup(value);
}
else
g_warning("Unknown field `%s'.", key);
}
calibration = gwy_calibration_new(filename, filename);
gwy_calibration_sanitize(calibration);
return (GwyResource*)calibration;
}
static void
gwy_calibration_sanitize(G_GNUC_UNUSED GwyCalibration *calibration)
{
}
/**
* gwy_calibrations:
*
* Gets inventory with all the calibrations.
*
* Returns: Calibration inventory.
*
* Since: 2.23
**/
GwyInventory*
gwy_calibrations(void)
{
return GWY_RESOURCE_CLASS(g_type_class_peek(GWY_TYPE_CALIBRATION))->inventory;
}
/**
* gwy_calibrations_get_calibration:
* @name: Calibration name. May be %NULL to get the default calibration.
*
* Convenience function to get a calibration from gwy_calibrations() by name.
*
* Returns: Calibration identified by @name or the default calibration if @name
* does not exist.
*
* Since: 2.23
**/
GwyCalibration*
gwy_calibrations_get_calibration(const gchar *name)
{
GwyInventory *i;
i = GWY_RESOURCE_CLASS(g_type_class_peek(GWY_TYPE_CALIBRATION))->inventory;
return (GwyCalibration*)gwy_inventory_get_item_or_default(i, name);
}
/************************** Documentation ****************************/
/**
* SECTION:gwycalibration
* @title: GwyCalibration
* @short_description: Resource for managing calibrations
*
* #GwyCalibration is a resource used for managing calibration data. These
* resources are stored separately from calibration data and contain namely
* filename of connected calibration data file.
**/
/**
* GwyCalibration:
*
* The #GwyCalibration struct contains private data only and should be accessed
* using the functions below.
*
* Since: 2.23
**/
/* vim: set cin et ts=4 sw=4 cino=>1s,e0,n0,f0,{0,}0,^0,\:1s,=0,g1s,h0,t0,+1s,c3,(0,u0 : */
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