1 /* 2 * ProGuard -- shrinking, optimization, obfuscation, and preverification 3 * of Java bytecode. 4 * 5 * Copyright (c) 2002-2014 Eric Lafortune (eric@graphics.cornell.edu) 6 * 7 * This program is free software; you can redistribute it and/or modify it 8 * under the terms of the GNU General Public License as published by the Free 9 * Software Foundation; either version 2 of the License, or (at your option) 10 * any later version. 11 * 12 * This program is distributed in the hope that it will be useful, but WITHOUT 13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 15 * more details. 16 * 17 * You should have received a copy of the GNU General Public License along 18 * with this program; if not, write to the Free Software Foundation, Inc., 19 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 20 */ 21 package proguard.gui.splash; 22 23 import java.awt.*; 24 25 /** 26 * This Sprite encapsulates another Sprite, which is clipped by a clip Sprite. 27 * 28 * @author Eric Lafortune 29 */ 30 public class ClipSprite implements Sprite 31 { 32 private final VariableColor insideClipColor; 33 private final VariableColor outsideClipColor; 34 private final Sprite clipSprite; 35 private final Sprite sprite; 36 37 38 /** 39 * Creates a new ClipSprite. 40 * @param insideClipColor the background color inside the clip sprite. 41 * @param outsideClipColor the background color outside the clip sprite. 42 * @param clipSprite the clip Sprite. 43 * @param sprite the clipped Sprite. 44 */ ClipSprite(VariableColor insideClipColor, VariableColor outsideClipColor, Sprite clipSprite, Sprite sprite)45 public ClipSprite(VariableColor insideClipColor, 46 VariableColor outsideClipColor, 47 Sprite clipSprite, 48 Sprite sprite) 49 { 50 this.insideClipColor = insideClipColor; 51 this.outsideClipColor = outsideClipColor; 52 this.clipSprite = clipSprite; 53 this.sprite = sprite; 54 } 55 56 57 // Implementation for Sprite. 58 paint(Graphics graphics, long time)59 public void paint(Graphics graphics, long time) 60 { 61 // Clear the background. 62 Color outsideColor = outsideClipColor.getColor(time); 63 Rectangle clip = graphics.getClipBounds(); 64 graphics.setPaintMode(); 65 graphics.setColor(outsideColor); 66 graphics.fillRect(0, 0, clip.width, clip.height); 67 68 // Draw the sprite in XOR mode. 69 OverrideGraphics2D g = new OverrideGraphics2D((Graphics2D)graphics); 70 Color insideColor = insideClipColor.getColor(time); 71 g.setOverrideXORMode(insideColor); 72 sprite.paint(g, time); 73 g.setOverrideXORMode(null); 74 75 // Clear the clip area. 76 g.setOverrideColor(insideColor); 77 clipSprite.paint(g, time); 78 g.setOverrideColor(null); 79 80 // Draw the sprite in XOR mode. 81 g.setOverrideXORMode(insideColor); 82 sprite.paint(g, time); 83 g.setOverrideXORMode(null); 84 } 85 } 86