O Guia Definitivo do Yii 1.1

then the basic theme will be in effect, which means the application's layout will use the one
under the directory themes/basic/views/layouts, and the site's index view will use the one
under themes/basic/views/site. In case a view file is not found in the theme, it will fall back
to the one under the protected/views directory.
Theming Widgets
Starting from version 1.1.5, views used by a widget can also be themed. In particular,
when we callCWidget::render() to render a widget view, Yii will attempt to search under the
theme folder as well as the widget view folder for the desired view file.
To theme the view xyz for a widget whose class name is Foo, we should first create a
folder named Foo (same as the widget class name) under the currently active theme's
view folder. If the widget class is namespaced (available in PHP 5.3.0 or above), such as
\app\widgets\Foo, we should create a folder named app_widgets_Foo. That is, we replace
the namespace separators with the underscore characters.
We then create a view file named xyz.php under the newly created folder. To this end, we
should have a file themes/basic/views/Foo/xyz.php, which will be used by the widget to
replace its original view, if the currently active theme is basic.
Customizing Widgets Globally
Note: this feature has been available since version 1.1.3.
When using a widget provided by third party or Yii, we often need to customize it for
specific needs. For example, we may want to change the value of
CLinkPager::maxButtonCount from 10 (default) to 5. We can accomplish this by passing
the initial property values when calling CBaseController::widget to create a widget.
However, it becomes troublesome to do so if we have to repeat the same customization in
every place we use CLinkPager.
$this->widget('CLinkPager', array(
'pages'=>$pagination,
'maxButtonCount'=>5,
'cssFile'=>false,
));
Using the global widget customization feature, we only need to specify these initial values
in a single place, i.e., the application configuration. This makes the customization of
widgets more manageable.
To use the global widget customization feature, we need to configure the widgetFactory as
follows: