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Java > Open Source Codes > org > openlaszlo > iv > flash > api > action > ClipActions


1 /*
2  * $Id: ClipActions.java,v 1.3 2002/05/16 05:08:41 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
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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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36  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
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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.api.action;
52
53 import java.io.PrintStream JavaDoc;
54 import org.openlaszlo.iv.flash.util.*;
55 import org.openlaszlo.iv.flash.parser.*;
56 import org.openlaszlo.iv.flash.api.*;
57 import org.openlaszlo.iv.flash.context.Context;
58
59 /**
60  * Collection of clip actions {link ClipAction}
61  *
62  * @author Dmitry Skavish
63  */
64 public class ClipActions extends FlashItem {
65
66     private int prefix; // it's always a zero word, but since it's not documented it's safer to keep it
67 private int mask; // mask of handlers
68 private IVVector clip_actions; // vector of ClipAction
69
70     public ClipActions() {}
71
72     public void setPrefix( int prefix ) {
73         this.prefix = prefix;
74     }
75
76     public int getPrefix() {
77         return prefix;
78     }
79
80     /**
81      * Sets what events this collection handles
82      *
83      * @param mask mask of events (see flags of {@link ClipAction})
84      */
85     public void setMask( int mask ) {
86         this.mask = mask;
87     }
88
89     /**
90      * Gets mask of handled events
91      *
92      * @return mask of handled events
93      */
94     public int getMask() {
95         return mask;
96     }
97
98     /**
99      * Adds ClipAction to this collection
100      *
101      * @param action specified clip actions
102      */
103     public void addAction( ClipAction action ) {
104         if( clip_actions == null ) {
105             clip_actions = new IVVector();
106         }
107         clip_actions.addElement( action );
108     }
109
110     /**
111      * Returns all clip actions of this collection.
112      *
113      * @return all clip actions of this collection.
114      */
115     public IVVector getActions() {
116         return clip_actions;
117     }
118
119     public static ClipActions parse( Parser p ) {
120         ClipActions a = new ClipActions();
121         a.clip_actions = new IVVector();
122         a.prefix = p.getUWord();
123         int version = p.getFile().getVersion();
124         a.mask = version>5? p.getUDWord(): p.getUWord();
125         for(;;) {
126             int flags = version>5? p.getUDWord(): p.getUWord();
127             if( flags == 0 ) break;
128             int length = p.getUDWord();
129             int start = p.getPos();
130             int end = start + length;
131             Program program = new Program( p.getBuf(), start, end );
132             a.clip_actions.addElement( new ClipAction(flags, program) );
133             p.setPos( end );
134         }
135         return a;
136     }
137
138     public void write( FlashOutput fob ) {
139         fob.writeWord( prefix );
140         int version = fob.getFlashFile().getVersion();
141
142         if( version > 5 ) fob.writeDWord(mask);
143         else fob.writeWord( mask );
144
145         clip_actions.write( fob );
146
147         if( version > 5 ) fob.writeDWord( 0 );
148         else fob.writeWord( 0 );
149     }
150
151     public void printContent( PrintStream JavaDoc out, String JavaDoc indent ) {
152         out.println( indent+"Clip Actions: mask=0x"+Util.w2h(mask)+" prefix="+prefix+" count="+clip_actions.size() );
153         clip_actions.printContent( out, indent+" " );
154     }
155
156     public void apply( Context context ) {
157         for( int i=0; i<clip_actions.size(); i++ ) {
158             ClipAction a = (ClipAction) clip_actions.elementAt(i);
159             a.apply( context );
160         }
161     }
162
163     public boolean isConstant() {
164         for( int i=0; i<clip_actions.size(); i++ ) {
165             ClipAction a = (ClipAction) clip_actions.elementAt(i);
166             if( !a.isConstant() ) return false;
167         }
168         return true;
169     }
170
171     protected FlashItem copyInto( FlashItem item, ScriptCopier copier ) {
172         super.copyInto( item, copier );
173         ((ClipActions)item).prefix = prefix;
174         ((ClipActions)item).mask = mask;
175         ((ClipActions)item).clip_actions = clip_actions.getCopy( copier );
176         return item;
177     }
178
179     public FlashItem getCopy( ScriptCopier copier ) {
180         return copyInto( new ClipActions(), copier );
181     }
182
183 }
184
185
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