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/* Fo
* fo-expression.c: Expression datatype
*
* Copyright (C) 2001 Sun Microsystems
* Copyright (C) 2007 Menteith Consulting Ltd
*
* See COPYING for the status of this software.
*/
#include "fo-utils.h"
#include "fo-datatype.h"
#include "fo-datatype-private.h"
#include "fo-expression.h"
enum {
PROP_0,
PROP_VALUE
};
struct _FoExpression
{
FoDatatype parent_instance;
gchar *value;
};
struct _FoExpressionClass
{
FoDatatypeClass parent_class;
};
static void fo_expression_init (FoExpression *expression);
static void fo_expression_class_init (FoExpressionClass *klass);
static void fo_expression_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static void fo_expression_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
static void fo_expression_finalize (GObject *object);
FoDatatype* fo_expression_copy(FoDatatype *datatype);
gchar* fo_expression_sprintf (FoObject *datatype);
static gpointer parent_class;
GType
fo_expression_get_type (void)
{
static GType object_type = 0;
if (!object_type)
{
static const GTypeInfo object_info =
{
sizeof (FoExpressionClass),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) fo_expression_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (FoExpression),
0, /* n_preallocs */
(GInstanceInitFunc) fo_expression_init,
NULL /* value_table */
};
object_type = g_type_register_static (FO_TYPE_DATATYPE,
"FoExpression",
&object_info, 0);
}
return object_type;
}
static void
fo_expression_init (FoExpression *expression)
{
expression->value = NULL;
}
static void
fo_expression_class_init (FoExpressionClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
parent_class = g_type_class_peek_parent (klass);
object_class->finalize = fo_expression_finalize;
object_class->set_property = fo_expression_set_property;
object_class->get_property = fo_expression_get_property;
g_object_class_install_property (object_class,
PROP_VALUE,
g_param_spec_string ("value",
_("Value"),
_("Expression value"),
NULL,
G_PARAM_READWRITE));
FO_DATATYPE_CLASS (klass)->copy = fo_expression_copy;
FO_OBJECT_CLASS (klass)->print_sprintf = fo_expression_sprintf;
}
static void
fo_expression_finalize (GObject *object)
{
FoExpression *expression;
expression = FO_EXPRESSION (object);
g_free(expression->value);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
fo_expression_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
FoDatatype *expression;
expression = FO_DATATYPE (object);
switch (prop_id)
{
case PROP_VALUE:
fo_expression_set_value (expression, g_value_get_string (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
fo_expression_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
FoDatatype *expression;
expression = FO_DATATYPE (object);
switch (prop_id)
{
case PROP_VALUE:
g_value_set_string (value, fo_expression_get_value (expression));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
/**
* fo_expression_new:
*
* Creates a new #FoExpression initialized to default value.
*
* Return value: the new #FoExpression
**/
FoDatatype *
fo_expression_new (void)
{
FoDatatype *expression;
expression = FO_DATATYPE (g_object_new (fo_expression_get_type (), NULL));
return expression;
}
/* value */
void
fo_expression_set_value (FoDatatype *expression,
const gchar* new_value)
{
g_return_if_fail (expression != NULL);
g_return_if_fail (FO_IS_EXPRESSION (expression));
FO_EXPRESSION (expression)->value = g_strdup (new_value);
/*g_object_notify (G_OBJECT (expression), "value");*/
}
gchar*
fo_expression_get_value (FoDatatype *expression)
{
g_return_val_if_fail (expression != NULL, NULL);
g_return_val_if_fail (FO_IS_EXPRESSION (expression), NULL);
return g_strdup (FO_EXPRESSION (expression)->value);
}
FoDatatype*
fo_expression_copy(FoDatatype *datatype)
{
FoDatatype* expression;
g_return_val_if_fail (datatype != NULL, NULL);
g_return_val_if_fail (FO_IS_EXPRESSION (datatype), NULL);
expression = fo_expression_new ();
FO_EXPRESSION (expression)->value = g_strdup (FO_EXPRESSION (datatype)->value);
return expression;
}
gchar*
fo_expression_sprintf (FoObject *datatype)
{
g_return_val_if_fail (datatype != NULL, NULL);
g_return_val_if_fail (FO_IS_EXPRESSION (datatype), NULL);
return (g_strdup_printf("%s", FO_EXPRESSION (datatype)->value));
}
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