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


1 /*
2  * $Id: TickerCommand.java,v 1.3 2002/02/24 02:10:19 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.
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.
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49  */
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.util.*;
59
60 import org.openlaszlo.iv.flash.context.Context;
61
62 public class TickerCommand extends GeneralListCommand {
63
64     public TickerCommand() {}
65
66     public void doCommand( FlashFile file, Context context, Script parent, int frameNum ) throws IVException {
67         initParms( context );
68
69         int stepsize = getIntParameter( context, "stepsize", 4 ) * 20;
70
71         Script listScript = makeList( file, context, parent, frameNum );
72
73         Script myScript = getInstance().copyScript();
74
75         int scrollFrames = stepsize==0?1:(listSize+Math.abs(stepsize)-1)/Math.abs(stepsize);
76
77         int current = 0;
78         for( int i=0; i<scrollFrames; i++ ) {
79             Frame scrollFrame = myScript.newFrame();
80             AffineTransform m;
81
82             if( isVertical )
83                 m = AffineTransform.getTranslateInstance(0,current);
84             else
85                 m = AffineTransform.getTranslateInstance(current,0);
86
87             if( i==0 ) scrollFrame.addInstance(listScript, 1, m, null, "contents" );
88             else scrollFrame.addInstance(1, m);
89
90             if( isVertical )
91                 m = AffineTransform.getTranslateInstance(0,current+listSize);
92             else
93                 m = AffineTransform.getTranslateInstance(current+listSize,0);
94
95             if( i==0 ) scrollFrame.addInstance(listScript, 2, m, null, "contents2" );
96             else scrollFrame.addInstance(2, m);
97             current -= stepsize;
98         }
99
100         addMask( parent, frameNum );
101     }
102
103 }
104
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