2652c7dda9
2009-05-04 13:51:10 +0200 cmc r271450 : #i101533# latest sw warnings 2009-05-04 00:02:46 +0200 cmc r271436 : #i101517# silence new warnings 2009-05-03 23:13:53 +0200 cmc r271435 : #i101305# add that one back in 2009-05-02 16:30:42 +0200 cmc r271431 : #i101493# get it to build, and remove some warnings 2009-05-02 16:12:37 +0200 cmc r271430 : CWS-TOOLING: rebase CWS cmcfixes58 to trunk@271427 (milestone: DEV300:m47) 2009-04-23 13:19:33 +0200 cmc r271163 : #i101305# remove annoying import foo is unused warnings 2009-04-21 17:10:34 +0200 cmc r271048 : #i101246# remove AVMEDIA_MANAGER_SERVICE_NAME defines again 2009-04-21 17:07:41 +0200 cmc r271047 : #i86323# remove xml2cmp unused methods
116 lines
3.8 KiB
Java
116 lines
3.8 KiB
Java
/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2008 by Sun Microsystems, Inc.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* $RCSfile: BackBuffer.java,v $
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* $Revision: 1.6 $
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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// Java AWT
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import java.awt.*;
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import java.awt.image.*;
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public class BackBuffer
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{
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private BufferedImage backBuffer;
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//private VolatileImage backBuffer;
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private Graphics2D backBufferGraphics;
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private Graphics2D referenceDevice;
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public BackBuffer( Graphics2D _referenceDevice,
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int width,
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int height )
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{
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referenceDevice = _referenceDevice;
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setSize( width, height );
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}
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public Graphics2D getGraphics()
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{
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return backBufferGraphics;
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}
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public void setSize( int width,
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int height )
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{
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if( backBuffer != null &&
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width == backBuffer.getWidth() &&
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height == backBuffer.getHeight() )
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{
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return;
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}
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if( backBufferGraphics != null )
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backBufferGraphics.dispose();
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if( backBuffer != null )
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backBuffer.flush();
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// TODO: Maybe VolatileImage with another BufferedImage as a backup is
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// a tad faster here.
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backBuffer = referenceDevice.getDeviceConfiguration().createCompatibleImage(width,
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height);
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// backBuffer = referenceDevice.getDeviceConfiguration().createCompatibleVolatileImage(width,
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// height);
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backBufferGraphics = backBuffer.createGraphics();
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CanvasUtils.initGraphics( backBufferGraphics );
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// clear the buffer to white (to have a defined state here)
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backBufferGraphics.setColor( java.awt.Color.white );
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backBufferGraphics.fillRect( 0,0,width,height );
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}
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public void redraw( Graphics2D graph )
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{
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if( graph != null &&
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backBuffer != null )
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{
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CanvasUtils.printLog("BackBuffer.redraw(): using buffer of size (" +
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backBuffer.getWidth() + "," + backBuffer.getHeight() + ")" );
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graph.drawImage(backBuffer, 0, 0, null);
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// TODO: this is just twiddled to work. I cannot be sure
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// that this volatile backbuffer will survive in the first
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// place, nor that it wise to leave it in VRAM.
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// only flush non-volatile images
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// CanvasUtils.postRenderImageTreatment( backBuffer );
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}
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}
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public java.awt.Image getBackBuffer()
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{
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return backBuffer;
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}
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public void dispose()
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{
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backBufferGraphics.dispose();
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backBuffer.flush();
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}
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}
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