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[model] Add :filter-set

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Currently, there is no way for implementations of the ClutterModel
abstract class to know whether there is a filter in place. Since
subclasses might implement some optimization in case there is no
filter present, we need a simple (and public) API to ask the model
itself.
This commit is contained in:
Emmanuele Bassi 2009-04-29 15:14:40 +01:00
parent 9fdc9ca583
commit 44fefa2afe
2 changed files with 67 additions and 1 deletions
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67
clutter/clutter-model.c
View File

@ -133,9 +133,15 @@
#include "clutter-private.h"
#include "clutter-debug.h"
G_DEFINE_ABSTRACT_TYPE (ClutterModel, clutter_model, G_TYPE_OBJECT);
enum
{
PROP_0,
PROP_FILTER_SET
};
enum
{
ROW_ADDED,
@ -249,11 +255,33 @@ clutter_model_finalize (GObject *object)
G_OBJECT_CLASS (clutter_model_parent_class)->finalize (object);
}
static void
clutter_model_get_property (GObject *gobject,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
ClutterModelPrivate *priv = CLUTTER_MODEL (gobject)->priv;
switch (prop_id)
{
case PROP_FILTER_SET:
g_value_set_boolean (value, priv->filter_func != NULL);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
break;
}
}
static void
clutter_model_class_init (ClutterModelClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GParamSpec *pspec;
gobject_class->get_property = clutter_model_get_property;
gobject_class->finalize = clutter_model_finalize;
g_type_class_add_private (gobject_class, sizeof (ClutterModelPrivate));
@ -263,6 +291,23 @@ clutter_model_class_init (ClutterModelClass *klass)
klass->get_n_columns = clutter_model_real_get_n_columns;
klass->get_n_rows = clutter_model_real_get_n_rows;
/**
* ClutterModel:filter-set:
*
* Whether the #ClutterModel has a filter set
*
* This property is set to %TRUE if a filter function has been
* set using clutter_model_set_filter()
*
* Since: 1.0
*/
pspec = g_param_spec_boolean ("filter-set",
"Filter Set",
"Whether the model has a filter",
FALSE,
CLUTTER_PARAM_READABLE);
g_object_class_install_property (gobject_class, PROP_FILTER_SET, pspec);
/**
* ClutterModel::row-added:
* @model: the #ClutterModel on which the signal is emitted
@ -1356,6 +1401,26 @@ clutter_model_set_filter (ClutterModel *model,
priv->filter_notify = notify;
g_signal_emit (model, model_signals[FILTER_CHANGED], 0);
g_object_notify (G_OBJECT (model), "filter-set");
}
/**
* clutter_model_get_filter_set:
* @model: a #ClutterModel
*
* Returns whether the @model has a filter in place, set
* using clutter_model_set_filter()
*
* Return value: %TRUE if a filter is set
*
* Since: 1.0
*/
gboolean
clutter_model_get_filter_set (ClutterModel *model)
{
g_return_val_if_fail (CLUTTER_IS_MODEL (model), FALSE);
return model->priv->filter_func != NULL;
}
/*

1
clutter/clutter-model.h
View File

@ -248,6 +248,7 @@ void clutter_model_set_filter (ClutterModel *model,
ClutterModelFilterFunc func,
gpointer user_data,
GDestroyNotify notify);
gboolean clutter_model_get_filter_set (ClutterModel *model);
void clutter_model_resort (ClutterModel *model);
gboolean clutter_model_filter_row (ClutterModel *model,