javax.media.nativewindow

Interface OffscreenLayerSurface

public interface OffscreenLayerSurface

Interface specifying the offscreen layer surface protocol.

Method Summary

Methods

Modifier and Type	Method and Description
void	attachSurfaceLayer(long layerHandle) Attach the offscreen layer to this offscreen layer surface.
void	detachSurfaceLayer() Detaches a previously attached offscreen layer from this offscreen layer surface.
long	getAttachedSurfaceLayer() Returns the attached surface layer or null if none is attached.
RecursiveLock	getLock() Returns the recursive lock object of this surface, which synchronizes multithreaded access.
boolean	hideCursor() Optional method hiding the cursor in the corresponding on-screen surface/window, if exists.
boolean	isSurfaceLayerAttached() Returns true if a surface layer is attached, otherwise false.
void	setChosenCapabilities(CapabilitiesImmutable caps) Sets the capabilities of this instance, allowing upstream API's to refine it, i.e.
boolean	setCursor(PixelRectangle pixelrect, PointImmutable hotSpot) Optional method setting cursor in the corresponding on-screen surface/window, if exists.

Method Detail

attachSurfaceLayer

void attachSurfaceLayer(long layerHandle)
                        throws NativeWindowException

Attach the offscreen layer to this offscreen layer surface.

Implementation may realize all required resources at this point.

Throws:

NativeWindowException - if #isOffscreenLayerSurfaceEnabled() == false

See Also:

#isOffscreenLayerSurfaceEnabled()

detachSurfaceLayer

void detachSurfaceLayer()
                        throws NativeWindowException

Detaches a previously attached offscreen layer from this offscreen layer surface.

Throws:

NativeWindowException - if #isOffscreenLayerSurfaceEnabled() == false or no surface layer is attached.

See Also:

attachSurfaceLayer(long), #isOffscreenLayerSurfaceEnabled()

getAttachedSurfaceLayer

long getAttachedSurfaceLayer()

Returns the attached surface layer or null if none is attached.

isSurfaceLayerAttached

boolean isSurfaceLayerAttached()

Returns true if a surface layer is attached, otherwise false.

setChosenCapabilities

void setChosenCapabilities(CapabilitiesImmutable caps)

Sets the capabilities of this instance, allowing upstream API's to refine it, i.e. OpenGL related settings.

getLock

RecursiveLock getLock()

Returns the recursive lock object of this surface, which synchronizes multithreaded access.

setCursor

boolean setCursor(PixelRectangle pixelrect,
                PointImmutable hotSpot)

Optional method setting cursor in the corresponding on-screen surface/window, if exists.

Parameters:

pixelrect - cursor pixels, maybe null for default cursor

hotSpot - maybe null for default cursor

Returns:

true if successful, i.e. on-screen surface/window w/ cursor capabilities exists. Otherwise false.

hideCursor

boolean hideCursor()

Optional method hiding the cursor in the corresponding on-screen surface/window, if exists.

Returns:

true if successful, i.e. on-screen surface/window w/ cursor capabilities exists. Otherwise false.