javax.media.nativewindow

Interface CapabilitiesChooser

All Known Subinterfaces:

GLCapabilitiesChooser

All Known Implementing Classes:

DefaultCapabilitiesChooser, DefaultGLCapabilitiesChooser, GenericGLCapabilitiesChooser

public interface CapabilitiesChooser

Provides a mechanism by which applications can customize the window type selection for a given Capabilities. Developers can implement this interface and pass an instance into the method GraphicsConfigurationFactory.chooseGraphicsConfiguration(javax.media.nativewindow.CapabilitiesImmutable, javax.media.nativewindow.CapabilitiesImmutable, javax.media.nativewindow.CapabilitiesChooser, javax.media.nativewindow.AbstractGraphicsScreen, int); the chooser will be called at window creation time.

Method Summary

Methods

Modifier and Type	Method and Description
int	chooseCapabilities(CapabilitiesImmutable desired, List<? extends CapabilitiesImmutable> available, int windowSystemRecommendedChoice) Chooses the index (0..available.length - 1) of the Capabilities most closely matching the desired one from the list of all supported.

Method Detail

chooseCapabilities

int chooseCapabilities(CapabilitiesImmutable desired,
                     List<? extends CapabilitiesImmutable> available,
                     int windowSystemRecommendedChoice)

Chooses the index (0..available.length - 1) of the Capabilities most closely matching the desired one from the list of all supported. Some of the entries in the available array may be null; the chooser must ignore these. The windowSystemRecommendedChoice parameter may be provided to the chooser by the underlying window system; if this index is valid, it is recommended, but not necessarily required, that the chooser select that entry.

Note: this method is called automatically by the GraphicsConfigurationFactory.chooseGraphicsConfiguration(javax.media.nativewindow.CapabilitiesImmutable, javax.media.nativewindow.CapabilitiesImmutable, javax.media.nativewindow.CapabilitiesChooser, javax.media.nativewindow.AbstractGraphicsScreen, int) method when an instance of this class is passed in to it. It should generally not be invoked by users directly, unless it is desired to delegate the choice to some other CapabilitiesChooser object.