ej.mwt.render

Class OverlapRenderPolicy

java.lang.Object

ej.mwt.render.RenderPolicy

ej.mwt.render.DefaultRenderPolicy

ej.mwt.render.OverlapRenderPolicy

public class OverlapRenderPolicy
extends DefaultRenderPolicy

This render policy keeps the initial order of the widgets. That means that when a widget is rendered, the widgets after it in the hierarchy and that have an intersection with it, are also rendered.

When a widget is asked to be rendered, all the widgets that overlap it in the desktop hierarchy are also rendered. A widget is considered to overlap another one if:

• their bounds intersect,
• it is after the other one when browsing the hierarchy following a depth-first algorithm.

Constructor Summary

Constructors

Constructor and Description
OverlapRenderPolicy(Desktop desktop) Creates an overlap render policy.

Method Summary

Modifier and Type	Method and Description
protected void	renderWidget(Widget widget, int x, int y, int width, int height) This method performs the increment render of the widget.

Methods inherited from class ej.mwt.render.DefaultRenderPolicy

renderDesktop, requestRender, setParentClip

Methods inherited from class ej.mwt.render.RenderPolicy

getDesktop

Methods inherited from class java.lang.Object

clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

OverlapRenderPolicy

public OverlapRenderPolicy(Desktop desktop)

Creates an overlap render policy.

Parameters:

desktop - the desktop.

Method Detail

renderWidget

protected void renderWidget(Widget widget,
                            int x,
                            int y,
                            int width,
                            int height)

Description copied from class: DefaultRenderPolicy

This method performs the increment render of the widget. Its implementation only renders the widget and not its siblings, but this behavior may be changed by overriding this method.

The given bounds are relative to the widget.

Overrides:

renderWidget in class DefaultRenderPolicy

Parameters:

widget - the widget to render.

x - the x coordinate of the area to render.

y - the y coordinate of the area to render.

width - the width of the area to render.

height - the height of the area to render.