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Java > Open Source Codes > org > openlaszlo > iv > flash > commands > ScrollingListCommand


1 /*
2  * $Id: ScrollingListCommand.java,v 1.4 2002/03/19 22:19:55 skavish Exp $
3  *
4  * ===========================================================================
5  *
6  * The JGenerator Software License, Version 1.0
7  *
8  * Copyright (c) 2000 Dmitry Skavish (skavish@usa.net). All rights reserved.
9  *
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.
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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
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37  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
38  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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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
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44  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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50
51 package org.openlaszlo.iv.flash.commands;
52
53 import java.io.*;
54 import java.awt.geom.*;
55
56 import org.openlaszlo.iv.flash.parser.*;
57 import org.openlaszlo.iv.flash.api.*;
58 import org.openlaszlo.iv.flash.api.action.*;
59 import org.openlaszlo.iv.flash.util.*;
60
61 import org.openlaszlo.iv.flash.context.Context;
62
63 public class ScrollingListCommand extends GeneralListCommand {
64
65     public ScrollingListCommand() {}
66
67     public void doCommand( FlashFile file, Context context, Script parent, int frameNum ) throws IVException {
68         initParms( context );
69
70         int stepsize = getIntParameter( context, "stepsize", 4 ) * 20;
71
72         Script listScript = makeList( file, context, parent, frameNum );
73
74         Script myScript = getInstance().copyScript();
75         Frame firstFrame = myScript.newFrame();
76         firstFrame.addInstance(listScript, 1, new AffineTransform(), null, "contents" );
77
78         if( stepsize > 0 ) {
79             if( isVertical ) {
80                 listSize -= winHeight;
81             } else {
82                 listSize -= winWidth;
83             }
84             int scrollFrames = listSize/stepsize;
85             int current = 0;
86
87             for( int i=0; i<scrollFrames; i++ ) {
88                 Frame scrollFrame = myScript.newFrame();
89                 AffineTransform matrix;
90                 current -= stepsize;
91                 if( isVertical ) {
92                     matrix = AffineTransform.getTranslateInstance(0,current);
93                 } else {
94                     matrix = AffineTransform.getTranslateInstance(current,0);
95                 }
96                 scrollFrame.addInstance(1, matrix);
97             }
98         }
99
100         firstFrame.addStopAction();
101         myScript.getLastFrame().addStopAction();
102
103         addMask( parent, frameNum );
104     }
105
106 }
107
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