1b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato/* 2b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * ProGuard -- shrinking, optimization, obfuscation, and preverification 3b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * of Java bytecode. 4b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 5b9cc48a43ed984587c939d02fba5316bf5c0df6eYing Wang * Copyright (c) 2002-2013 Eric Lafortune (eric@graphics.cornell.edu) 6b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 7b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * This program is free software; you can redistribute it and/or modify it 8b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * under the terms of the GNU General Public License as published by the Free 9b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * Software Foundation; either version 2 of the License, or (at your option) 10b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * any later version. 11b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 12b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * This program is distributed in the hope that it will be useful, but WITHOUT 13b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 14b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 15b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * more details. 16b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 17b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * You should have received a copy of the GNU General Public License along 18b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * with this program; if not, write to the Free Software Foundation, Inc., 19b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 20b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato */ 21b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratopackage proguard.gui.splash; 22b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 23b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratoimport java.awt.*; 24b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 25b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato/** 26b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * This Sprite adds a drop shadow to another Sprite. 27b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 28b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * @author Eric Lafortune 29b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato */ 30b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratopublic class ShadowedSprite implements Sprite 31b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato{ 32b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato private final VariableInt xOffset; 33b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato private final VariableInt yOffset; 34b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato private final VariableDouble alpha; 35b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato private final VariableInt blur; 36b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato private final Sprite sprite; 37b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 38b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato private float cachedAlpha = -1.0f; 39b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato private Color cachedColor; 40b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 41b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 42b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato /** 43b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * Creates a new ShadowedSprite. 44b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * @param xOffset the variable x-offset of the shadow, relative to the sprite itself. 45b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * @param yOffset the variable y-offset of the shadow, relative to the sprite itself. 46b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * @param alpha the variable darkness of the shadow (between 0 and 1). 47b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * @param blur the variable blur of the shadow (0 for sharp shadows, 1 or 48b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * more for increasingly blurry shadows). 49b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * @param sprite the Sprite to be painted with its shadow. 50b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato */ 51b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public ShadowedSprite(VariableInt xOffset, 52b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato VariableInt yOffset, 53b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato VariableDouble alpha, 54b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato VariableInt blur, 55b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato Sprite sprite) 56b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 57b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato this.xOffset = xOffset; 58b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato this.yOffset = yOffset; 59b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato this.alpha = alpha; 60b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato this.blur = blur; 61b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato this.sprite = sprite; 62b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 63b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 64b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 65b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Implementation for Sprite. 66b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 67b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public void paint(Graphics graphics, long time) 68b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 69b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato double l = alpha.getDouble(time); 70b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato int b = blur.getInt(time) + 1; 71b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 72b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato float a = 1.0f - (float)Math.pow(1.0 - l, 1.0/(b*b)); 73b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato if (a != cachedAlpha) 74b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 75b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato cachedAlpha = a; 76b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato cachedColor = new Color(0f, 0f, 0f, a); 77b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 78b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 79b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Set up the shadow graphics. 80b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato //OverrideGraphics2D g = new OverrideGraphics2D((Graphics2D)graphics); 81b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato //g.setOverrideColor(cachedColor); 82b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 83b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Set the shadow color. 84b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato Color actualColor = graphics.getColor(); 85b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato graphics.setColor(cachedColor); 86b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 87b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato int xo = xOffset.getInt(time) - b/2; 88b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato int yo = yOffset.getInt(time) - b/2; 89b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 90b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Draw the sprite's shadow. 91b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato for (int x = 0; x < b; x++) 92b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 93b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato for (int y = 0; y < b; y++) 94b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 95b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato int xt = xo + x; 96b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato int yt = yo + y; 97b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato graphics.translate(xt, yt); 98b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato sprite.paint(graphics, time); 99b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato graphics.translate(-xt, -yt); 100b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 101b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 102b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 103b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Restore the actual sprite color. 104b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato graphics.setColor(actualColor); 105b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 106b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Draw the sprite itself in the ordinary graphics. 107b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato sprite.paint(graphics, time); 108b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 109b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato} 110