001: /*
002: * $Id: SetScaleCommand.java,v 1.5 2002/06/12 23:54:14 skavish Exp $
003: *
004: * ===========================================================================
005: *
006: * The JGenerator Software License, Version 1.0
007: *
008: * Copyright (c) 2000 Dmitry Skavish (skavish@usa.net). All rights reserved.
009: *
010: * Redistribution and use in source and binary forms, with or without
011: * modification, are permitted provided that the following conditions are met:
012: *
013: * 1. Redistributions of source code must retain the above copyright
014: * notice, this list of conditions and the following disclaimer.
015: *
016: * 2. Redistributions in binary form must reproduce the above copyright
017: * notice, this list of conditions and the following disclaimer in
018: * the documentation and/or other materials provided with the
019: * distribution.
020: *
021: * 3. The end-user documentation included with the redistribution, if
022: * any, must include the following acknowlegement:
023: * "This product includes software developed by Dmitry Skavish
024: * (skavish@usa.net, http://www.flashgap.com/)."
025: * Alternately, this acknowlegement may appear in the software itself,
026: * if and wherever such third-party acknowlegements normally appear.
027: *
028: * 4. The name "The JGenerator" must not be used to endorse or promote
029: * products derived from this software without prior written permission.
030: * For written permission, please contact skavish@usa.net.
031: *
032: * 5. Products derived from this software may not be called "The JGenerator"
033: * nor may "The JGenerator" appear in their names without prior written
034: * permission of Dmitry Skavish.
035: *
036: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
037: * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
038: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
039: * DISCLAIMED. IN NO EVENT SHALL DMITRY SKAVISH OR THE OTHER
040: * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
041: * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
042: * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
043: * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
044: * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
045: * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
046: * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
047: * SUCH DAMAGE.
048: *
049: */
050:
051: package org.openlaszlo.iv.flash.commands;
052:
053: import java.awt.geom.*;
054:
055: import org.openlaszlo.iv.flash.parser.*;
056: import org.openlaszlo.iv.flash.api.*;
057: import org.openlaszlo.iv.flash.util.*;
058: import org.openlaszlo.iv.flash.context.Context;
059:
060: public class SetScaleCommand extends GenericCommand {
061:
062: public SetScaleCommand() {
063: }
064:
065: private double parseNumber(String num, double def) {
066: if (num == null)
067: return def;
068: try {
069: return Double.valueOf(num).doubleValue();
070: } catch (NumberFormatException e) {
071: return def;
072: }
073: }
074:
075: public void doCommand(FlashFile file, Context context,
076: Script parent, int frameNum) throws IVException {
077: Instance inst = getCommandInstance(file, context, parent,
078: frameNum);
079:
080: // process corresponding flash def first
081: processFlashDef(inst, file, context);
082:
083: double xscale = parseNumber(getParameter(context, "xscale"),
084: 1.0);
085: double yscale = parseNumber(getParameter(context, "yscale"),
086: 1.0);
087: double rotate = parseNumber(getParameter(context, "rotate"),
088: 0.0);
089: double xoffset = parseNumber(getParameter(context, "xoffset"),
090: 0.0) * 20.0;
091: double yoffset = parseNumber(getParameter(context, "yoffset"),
092: 0.0) * 20.0;
093:
094: // M = T x I x S x R,
095: // where T: translation, I: instance matrix, S: scaling, R: rotation
096:
097: inst.matrix.preConcatenate(AffineTransform
098: .getTranslateInstance(xoffset, yoffset));
099:
100: inst.matrix.scale(xscale, yscale);
101:
102: if (rotate != 0.0) {
103: double theta = (rotate / 180) * Math.PI;
104: inst.matrix.rotate(theta);
105: }
106:
107: }
108:
109: }
|