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/*
* Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* - Redistribution of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistribution in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* Neither the name of Sun Microsystems, Inc. or the names of
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* This software is provided "AS IS," without a warranty of any kind. ALL
* EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
* INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
* PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
* MIDROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
* ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
* DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
* ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
* DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
* DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
* ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
* SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
*
* You acknowledge that this software is not designed or intended for use
* in the design, construction, operation or maintenance of any nuclear
* facility.
*
* Sun gratefully acknowledges that this software was originally authored
* and developed by Kenneth Bradley Russell and Christopher John Kline.
*/
package net.java.games.jogl;
/** <P> Provides a virtual machine- and operating system-independent
mechanism for creating {@link net.java.games.jogl.GLCanvas} and {@link
net.java.games.jogl.GLJPanel} objects. </P>
<P> The {@link net.java.games.jogl.GLCapabilities} objects passed in to the
various factory methods are used as a hint for the properties of
the returned drawable. The default capabilities selection
algorithm (equivalent to passing in a null {@link
GLCapabilitiesChooser}) is described in {@link
DefaultGLCapabilitiesChooser}. Sophisticated applications needing
to change the selection algorithm may pass in their own {@link
GLCapabilitiesChooser} which can select from the available pixel
formats. </P>
<P> Because of the multithreaded nature of the Java platform's
window system toolkit, it is typically not possible to immediately
reject a given {@link GLCapabilities} as being unsupportable by
either returning <code>null</code> from the creation routines or
raising a {@link GLException}. The semantics of the rejection
process are (unfortunately) left unspecified for now. The current
implementation will cause a {@link GLException} to be raised
during the first repaint of the {@link GLCanvas} or {@link
GLJPanel} if the capabilities can not be met. </P>
*/
public class GLDrawableFactory {
private static GLDrawableFactory factory = new GLDrawableFactory();
private GLDrawableFactory() {}
/** Returns the sole GLDrawableFactory instance. */
public static GLDrawableFactory getFactory() {
return factory;
}
/** Creates a {@link GLCanvas} with the specified capabilities using
the default capabilities selection algorithm. */
public GLCanvas createGLCanvas(GLCapabilities capabilities) {
return createGLCanvas(capabilities, null);
}
/** Creates a {@link GLCanvas} with the specified capabilities using
the supplied capabilities selection algorithm. A null chooser is
equivalent to using the {@link DefaultGLCapabilitiesChooser}. */
public GLCanvas createGLCanvas(GLCapabilities capabilities, GLCapabilitiesChooser chooser) {
// FIXME: do we need to select a GraphicsConfiguration here as in
// GL4Java? If so, this class will have to be made abstract and
// we'll have to provide hooks into this package to get at the
// GLCanvas and GLJPanel constructors.
if (chooser == null) {
chooser = new DefaultGLCapabilitiesChooser();
}
return new GLCanvas(capabilities, chooser);
}
/** Creates a {@link GLJPanel} with the specified capabilities using
the default capabilities selection algorithm. */
public GLJPanel createGLJPanel(GLCapabilities capabilities) {
return createGLJPanel(capabilities, null);
}
/** Creates a {@link GLJPanel} with the specified capabilities using
the supplied capabilities selection algorithm. A null chooser is
equivalent to using the {@link DefaultGLCapabilitiesChooser}. */
public GLJPanel createGLJPanel(GLCapabilities capabilities, GLCapabilitiesChooser chooser) {
if (chooser == null) {
chooser = new DefaultGLCapabilitiesChooser();
}
return new GLJPanel(capabilities, chooser);
}
}
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