1 /* 2 * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package sun.lwawt; 27 28 import java.awt.AWTException; 29 import java.awt.BufferCapabilities; 30 import java.awt.Component; 31 import java.awt.Image; 32 33 /** 34 * As lwawt can be used on different platforms with different graphic 35 * configurations, the general set of methods is necessary. This interface 36 * collects the methods that should be provided by GraphicsConfiguration, 37 * simplifying use by the LWAWT. 38 * 39 * @author Sergey Bylokhov 40 */ 41 public interface LWGraphicsConfig { 42 43 /* 44 * A GraphicsConfiguration must implements following methods to indicate 45 * that it imposes certain limitations on the maximum size of supported 46 * textures. 47 */ 48 49 /** 50 * Returns the maximum width of any texture image. By default return {@code 51 * Integer.MAX_VALUE}. 52 */ getMaxTextureWidth()53 int getMaxTextureWidth(); 54 55 /** 56 * Returns the maximum height of any texture image. By default return {@code 57 * Integer.MAX_VALUE}. 58 */ getMaxTextureHeight()59 int getMaxTextureHeight(); 60 61 /* 62 * The following methods correspond to the multi-buffering methods in 63 * LWComponentPeer.java. 64 */ 65 66 /** 67 * Checks that the requested configuration is natively supported; if not, an 68 * AWTException is thrown. 69 */ assertOperationSupported(int numBuffers, BufferCapabilities caps)70 void assertOperationSupported(int numBuffers, BufferCapabilities caps) 71 throws AWTException; 72 73 /** 74 * Creates a back buffer for the given peer and returns the image wrapper. 75 */ createBackBuffer(LWComponentPeer<?, ?> peer)76 Image createBackBuffer(LWComponentPeer<?, ?> peer); 77 78 /** 79 * Destroys the back buffer object. 80 */ destroyBackBuffer(Image backBuffer)81 void destroyBackBuffer(Image backBuffer); 82 83 /** 84 * Performs the native flip operation for the given target Component. Our 85 * flip is implemented through normal drawImage() to the graphic object, 86 * because of our components uses a graphic object of the container(in this 87 * case we also apply necessary constrains) 88 */ flip(LWComponentPeer<?, ?> peer, Image backBuffer, int x1, int y1, int x2, int y2, BufferCapabilities.FlipContents flipAction)89 void flip(LWComponentPeer<?, ?> peer, Image backBuffer, int x1, int y1, 90 int x2, int y2, BufferCapabilities.FlipContents flipAction); 91 92 /** 93 * Creates a new hidden-acceleration image of the given width and height 94 * that is associated with the target Component. 95 */ createAcceleratedImage(Component target, int width, int height)96 Image createAcceleratedImage(Component target, int width, int height); 97 } 98