ej.mwt.style.background

Interface Background

All Known Implementing Classes:

ImageBackground, NoBackground, RectangularBackground, RoundedBackground, TiledImageBackground

public interface Background

Represents the background of the widgets.

Method Summary

Modifier and Type	Method and Description
void	apply(GraphicsContext g, int width, int height) Applies the background on a graphics context.
boolean	isTransparent(int width, int height) Tells whether or not this background is transparent.

Method Detail

apply

void apply(GraphicsContext g,
           int width,
           int height)

Applies the background on a graphics context.

Parameters:

g - the graphics context.

width - the width of the background.

height - the height of the background.

isTransparent

boolean isTransparent(int width,
                      int height)

Tells whether or not this background is transparent.

A background is considered as transparent if it does not draw every pixel with maximal opacity when it is applied. If a widget has a transparent background, its parent has to be rendered before the widget.

Parameters:

width - the width of the background.

height - the height of the background.

Returns:

true if the background is transparent, false otherwise.