/* rect.java * * Copyright (c) 2000-2001, Ted Nelson and Tuomas Lukka * * You may use and distribute under the terms of either the GNU Lesser * General Public License, either version 2 of the license or, * at your choice, any later version. Alternatively, you may use and * distribute under the terms of the XPL. * * See the LICENSE.lgpl and LICENSE.xpl files for the specific terms of * the licenses. * * This software is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the README * file for more details. * */ /* * Written by Tero Mäyränen */ package org.gzigzag.module.multimedia; import org.gzigzag.*; import java.awt.*; import java.awt.image.*; import java.util.*; public class rect extends MediaZOb { public static final String rcsid = "$Id: rect.java,v 1.1 2002/10/07 12:37:34 tuukkah Exp $"; private Pixels pix = null; private int fade(int x, int fg, int bg) { int y = 0xff-x; return 0xff000000 | (((((fg & 0xff0000) * x) + ((bg & 0xff0000) * y)) >> 8) & 0xff0000) | (((((fg & 0xff00) * x) + ((bg & 0xff00) * y)) >> 8) & 0xff00) | (((((fg & 0xff) * x) + ((bg & 0xff) * y)) >> 8) & 0xff); } private int oldw=0, oldh=0, oldbg=0, oldfg=0, oldstarsize=0; private String oldmode=""; public Pixels getPixels() { int w = readParam("width").getInt(64); int h = readParam("height").getInt(64); int bg = readParam("bg").getInt(0); int fg = readParam("fg").getInt(0xffffff); int starsize = readParam("size").getInt(16); if (starsize==0) starsize=1; String mode = readParam("fillmode").getText("solid"); if (pix != null && oldw==w && oldh==h && oldbg==bg && oldfg==fg && oldstarsize==starsize && mode.equals(oldmode)) { return pix; } oldw=w; oldh=h; oldbg=bg; oldfg=fg; oldstarsize=starsize; oldmode=mode; if (pix == null) { pix = new Pixels(w, h); } else { pix.setSize(w, h); } int p[] = pix.getPixels(); if (mode.equals("solid")) { for (int i=0; i<(w*h); i++) { p[i] = 0xff000000 | fg; } } if (mode.equals("starburst")) { // älä optiomoi, vaihda algoritmia int w2 = w >> 1; int h2 = h >> 1; int i = 0, j; for (int y=-h2; y 0xff) j = 0xff; p[i++] = fade(j, bg, fg); } } } if (mode.equals("radial")) { int w2 = w >> 1; int h2 = h >> 1; int i = 0, j = w, i2 = w*h, j2 = (w*h)-w, k; for (int y=-h2; y<0; y++) { for (int x=-w2; x<0; x++) { k = ((int)(Math.atan(((double)x) / y) * 128 / Math.PI)) & 0x3f; p[i++] = fade(k, bg, fg); p[--j] = fade(k, fg, bg); p[--i2] = fade(k | 0x80, bg, fg); p[j2++] = fade(k | 0x80, fg, bg); } i += w2; j += w + w2; i2 -= w2; j2 -= w + w2; } } pix.setFrame(pix.getFrame()+1); return pix; } }