RoxAppView for output buffering

[lemon-head]

The class RoxAppView? can be used as a base class for application view objects. It provides a method

getAsString($methodname, $arg1, $arg2, ...)

that buffers the output of $this->$methodname() and returns it as a string.

This will help to keep our controllers tidy: Instead of

ob_start();
$view->teaser();
$Page->teaserBar .= ob_get_contents();
ob_end_clean();

we can now write

$Page->teaserBar .= $view->getAsString('teaser');

This is a cheap alternative, or preliminary replacement for the new RoxPageView architecture proposed in #436.

[lemon-head]

[4337] - RoxAppView? is online!

[lemon-head]

This class is now called "PageWithParameterizedRoxLayout". Which describes exactly what it is :)

(the parameters being injected by "$page->title = ..." etc.

[lemon-head]

sorry, I mixed somethign up. The above comment is about RoxGenericPage, which changed its name to PageWithParameterizedRoxLayout (the other still there as an alias). See #459.

[lemon-head]

RoxAppView? is released.

Upon that, we have now another alternative called "ViewWrap?", looking like this

class ViewWrap
{
    private $_view_object;
    
    function __construct($view_object) {
        $this->_view_object = $view_object;
    }
    
    function __call($methodname, $args) {
        ob_start();
        call_user_func_array(array($this->_view_object, $methodname), $args);
        $str = ob_get_contents();
        ob_end_clean();
        return $str; 
    }
}

It automates the output buffering for us. I hope it is clear how it works..