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/* Fo
* fo-property-column-number.c: 'column-number' property
*
* Copyright (C) 2001 Sun Microsystems
* Copyright (C) 2007 Menteith Consulting Ltd
*
* See COPYING for the status of this software.
*/
#include <string.h>
#include "fo-utils.h"
#include "fo-context.h"
#include "datatype/fo-datatype.h"
#include "property/fo-property-private.h"
#include "property/fo-property-font-size.h"
#include "property/fo-property-column-number.h"
#include "property/fo-property-util.h"
/* column-number */
/* Inherited: FALSE */
/* Shorthand: FALSE */
/* <number> */
/* Initial value: see prose */
struct _FoPropertyColumnNumber
{
FoProperty parent_instance;
};
struct _FoPropertyColumnNumberClass
{
FoPropertyClass parent_class;
};
static void fo_property_column_number_init (FoPropertyColumnNumber *property_column_number);
static void fo_property_column_number_class_init (FoPropertyColumnNumberClass *klass);
static void fo_property_column_number_finalize (GObject *object);
static FoDatatype* fo_property_column_number_validate (FoDatatype *datatype,
FoContext *context,
GError **error);
static const gchar class_name[] = "column-number";
static gpointer parent_class;
/**
* fo_property_column_number_get_type:
*
* Register the #FoPropertyColumnNumber type if not already registered and
* return its #GType value.
*
* Return value: #GType of #FoPropertyColumnNumber.
**/
GType
fo_property_column_number_get_type (void)
{
static GType object_type = 0;
if (!object_type)
{
static const GTypeInfo object_info =
{
sizeof (FoPropertyColumnNumberClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) fo_property_column_number_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (FoPropertyColumnNumber),
0, /* n_preallocs */
(GInstanceInitFunc) fo_property_column_number_init,
NULL /* value_table */
};
object_type = g_type_register_static (FO_TYPE_PROPERTY,
class_name,
&object_info, 0);
}
return object_type;
}
/**
* fo_property_column_number_init:
* @column_number: #FoPropertyColumnNumber object to initialise.
*
* Implements #GInstanceInitFunc for #FoPropertyColumnNumber.
**/
void
fo_property_column_number_init (FoPropertyColumnNumber *column_number)
{
FO_PROPERTY (column_number)->value =
NULL;
}
/**
* fo_property_column_number_class_init:
* @klass: #FoPropertyColumnNumberClass object to initialise.
*
* Implements #GClassInitFunc for #FoPropertyColumnNumberClass.
**/
void
fo_property_column_number_class_init (FoPropertyColumnNumberClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
FoPropertyClass *property_class = FO_PROPERTY_CLASS (klass);
parent_class = g_type_class_peek_parent (klass);
object_class->finalize = fo_property_column_number_finalize;
property_class->is_inherited = FALSE;
property_class->is_shorthand = FALSE;
property_class->resolve_enum =
fo_property_util_resolve_no_enum;
property_class->validate =
fo_property_column_number_validate;
property_class->get_initial =
fo_property_column_number_get_initial;
}
/**
* fo_property_column_number_finalize:
* @object: #FoPropertyColumnNumber object to finalize.
*
* Implements #GObjectFinalizeFunc for #FoPropertyColumnNumber.
**/
void
fo_property_column_number_finalize (GObject *object)
{
FoPropertyColumnNumber *column_number;
column_number = FO_PROPERTY_COLUMN_NUMBER (object);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
/**
* fo_property_column_number_new:
*
* Creates a new #FoPropertyColumnNumber initialized to default value.
*
* Return value: the new #FoPropertyColumnNumber.
**/
FoProperty*
fo_property_column_number_new (void)
{
FoProperty* column_number;
column_number =
FO_PROPERTY (g_object_new (fo_property_column_number_get_type (),
NULL));
return column_number;
}
/**
* fo_property_column_number_validate:
* @datatype: #FoDatatype to be validated against allowed datatypes and
* values for current property.
* @context: #FoContext object from which to possibly inherit values.
* @error: Information about any error that has occurred.
*
* Validates @datatype against allowed values. Returns @datatype, a
* replacement datatype value, or NULL if validation failed.
*
* Return value: Valid datatype value or NULL.
**/
FoDatatype*
fo_property_column_number_validate (FoDatatype *datatype,
FoContext *context,
GError **error)
{
g_return_val_if_fail (datatype != NULL, NULL);
g_return_val_if_fail (FO_IS_DATATYPE (datatype), NULL);
g_return_val_if_fail (context != NULL, NULL);
g_return_val_if_fail (FO_IS_CONTEXT (context), NULL);
g_return_val_if_fail (error == NULL || *error == NULL, NULL);
if (FO_IS_NUMBER (datatype))
{
FoDatatype *new_datatype;
gfloat number_value = fo_number_get_value (datatype);
/* FIXME: There has to be a better way to do this conversion. */
gint integer_value = number_value + 0.5;
g_object_unref (datatype);
new_datatype = fo_integer_new_with_value (MAX (integer_value, 1));
return new_datatype;
}
else if (FO_IS_INTEGER (datatype))
{
return datatype;
}
else
{
gchar *datatype_sprintf = fo_object_sprintf (datatype);
g_set_error (error,
FO_FO_ERROR,
FO_FO_ERROR_DATATYPE,
_(fo_fo_error_messages[FO_FO_ERROR_DATATYPE]),
class_name,
datatype_sprintf,
g_type_name (G_TYPE_FROM_INSTANCE (datatype)));
g_object_unref (datatype);
g_free (datatype_sprintf);
return NULL;
}
}
/**
* fo_property_column_number_get_initial:
*
* Get an instance of the property with the correct initial value.
*
* Return value: An instance of the property.
**/
FoProperty*
fo_property_column_number_get_initial (void)
{
static FoProperty *column_number = NULL;
if (column_number == NULL)
{
column_number =
fo_property_column_number_new ();
}
return column_number;
}
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