01: /*
02: * $Id: SetAlphaCommand.java,v 1.5 2002/06/12 23:54:14 skavish Exp $
03: *
04: * ===========================================================================
05: *
06: * The JGenerator Software License, Version 1.0
07: *
08: * Copyright (c) 2000 Dmitry Skavish (skavish@usa.net). All rights reserved.
09: *
10: * Redistribution and use in source and binary forms, with or without
11: * modification, are permitted provided that the following conditions are met:
12: *
13: * 1. Redistributions of source code must retain the above copyright
14: * notice, this list of conditions and the following disclaimer.
15: *
16: * 2. Redistributions in binary form must reproduce the above copyright
17: * notice, this list of conditions and the following disclaimer in
18: * the documentation and/or other materials provided with the
19: * distribution.
20: *
21: * 3. The end-user documentation included with the redistribution, if
22: * any, must include the following acknowlegement:
23: * "This product includes software developed by Dmitry Skavish
24: * (skavish@usa.net, http://www.flashgap.com/)."
25: * Alternately, this acknowlegement may appear in the software itself,
26: * if and wherever such third-party acknowlegements normally appear.
27: *
28: * 4. The name "The JGenerator" must not be used to endorse or promote
29: * products derived from this software without prior written permission.
30: * For written permission, please contact skavish@usa.net.
31: *
32: * 5. Products derived from this software may not be called "The JGenerator"
33: * nor may "The JGenerator" appear in their names without prior written
34: * permission of Dmitry Skavish.
35: *
36: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
37: * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
38: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
39: * DISCLAIMED. IN NO EVENT SHALL DMITRY SKAVISH OR THE OTHER
40: * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
41: * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
42: * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
43: * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
44: * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
45: * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
46: * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
47: * SUCH DAMAGE.
48: *
49: */
50:
51: package org.openlaszlo.iv.flash.commands;
52:
53: import org.openlaszlo.iv.flash.parser.*;
54: import org.openlaszlo.iv.flash.api.*;
55: import org.openlaszlo.iv.flash.util.*;
56:
57: import org.openlaszlo.iv.flash.context.Context;
58:
59: public class SetAlphaCommand extends GenericCommand {
60:
61: public SetAlphaCommand() {
62: }
63:
64: public void doCommand(FlashFile file, Context context,
65: Script parent, int frameNum) throws IVException {
66: Instance inst = getCommandInstance(file, context, parent,
67: frameNum);
68:
69: // process corresponding flash def first
70: processFlashDef(inst, file, context);
71:
72: String percent = getParameter(context, "percent");
73: int f = 256;
74:
75: if (percent != null) {
76: try {
77: f = (int) (Double.valueOf(percent).doubleValue() * 256 / 100.0);
78: if (f < 0 || f > 256) {
79: Log.logRB(Resource.INVALALPHA, new Object[] {
80: percent, getCommandName() });
81: f = 256;
82: }
83: } catch (NumberFormatException e) {
84: Log.logRB(Resource.INVALALPHA, new Object[] { percent,
85: getCommandName() });
86: f = 256;
87: }
88: }
89: if (inst.cxform == null) {
90: inst.cxform = CXForm.newIdentity(true);
91: }
92: inst.cxform.setAlphaMul(f);
93: }
94:
95: }
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