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/*
* Copyright (C) 1987-2008 Sun Microsystems, Inc. All Rights Reserved.
* Copyright (C) 2008-2011 Robert Ancell.
*
* 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. See http://www.gnu.org/copyleft/gpl.html the full text of the
* license.
*/
#include <string.h>
#include "unit-category.h"
struct UnitCategoryPrivate
{
gchar *name;
gchar *display_name;
GList *units;
};
G_DEFINE_TYPE_WITH_PRIVATE (UnitCategory, unit_category, G_TYPE_OBJECT);
UnitCategory *
unit_category_new(const gchar *name, const gchar *display_name)
{
UnitCategory *category = g_object_new(unit_category_get_type(), NULL);
category->priv->name = g_strdup(name);
category->priv->display_name = g_strdup(display_name);
return category;
}
const gchar *
unit_category_get_name(UnitCategory *category)
{
g_return_val_if_fail (category != NULL, NULL);
return category->priv->name;
}
const gchar *
unit_category_get_display_name(UnitCategory *category)
{
g_return_val_if_fail (category != NULL, NULL);
return category->priv->display_name;
}
void
unit_category_add_unit(UnitCategory *category, Unit *unit)
{
g_return_if_fail (category != NULL);
g_return_if_fail (unit != NULL);
category->priv->units = g_list_append(category->priv->units, g_object_ref(unit));
}
Unit *
unit_category_get_unit_by_name(UnitCategory *category, const gchar *name)
{
GList *iter;
g_return_val_if_fail (category != NULL, NULL);
g_return_val_if_fail (name != NULL, NULL);
for (iter = category->priv->units; iter; iter = iter->next)
{
Unit *unit = iter->data;
if (strcmp(unit_get_name(unit), name) == 0)
return unit;
}
return NULL;
}
Unit *
unit_category_get_unit_by_symbol(UnitCategory *category, const gchar *symbol)
{
GList *iter;
g_return_val_if_fail (category != NULL, NULL);
g_return_val_if_fail (symbol != NULL, NULL);
for (iter = category->priv->units; iter; iter = iter->next) {
Unit *unit = iter->data;
if (unit_matches_symbol(unit, symbol))
return unit;
}
return NULL;
}
const GList *
unit_category_get_units(UnitCategory *category)
{
g_return_val_if_fail (category != NULL, NULL);
return category->priv->units;
}
gboolean
unit_category_convert(const UnitCategory *category, const MPNumber *x, Unit *x_units, Unit *z_units, MPNumber *z)
{
g_return_val_if_fail (category != NULL, FALSE);
g_return_val_if_fail (x_units != NULL, FALSE);
g_return_val_if_fail (z_units != NULL, FALSE);
g_return_val_if_fail (z != NULL, FALSE);
MPNumber t = mp_new();
if (!unit_convert_from(x_units, x, &t))
{
mp_clear(&t);
return FALSE;
}
if (!unit_convert_to(z_units, &t, z))
{
mp_clear(&t);
return FALSE;
}
mp_clear(&t);
return TRUE;
}
static void
unit_category_class_init(UnitCategoryClass *klass)
{
}
static void
unit_category_init(UnitCategory *category)
{
category->priv = unit_category_get_instance_private (category);
}
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