001: /*
002: * $Id: ClipActions.java,v 1.3 2002/05/16 05:08:41 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.api.action;
052:
053: import java.io.PrintStream;
054: import org.openlaszlo.iv.flash.util.*;
055: import org.openlaszlo.iv.flash.parser.*;
056: import org.openlaszlo.iv.flash.api.*;
057: import org.openlaszlo.iv.flash.context.Context;
058:
059: /**
060: * Collection of clip actions {link ClipAction}
061: *
062: * @author Dmitry Skavish
063: */
064: public class ClipActions extends FlashItem {
065:
066: private int prefix; // it's always a zero word, but since it's not documented it's safer to keep it
067: private int mask; // mask of handlers
068: private IVVector clip_actions; // vector of ClipAction
069:
070: public ClipActions() {
071: }
072:
073: public void setPrefix(int prefix) {
074: this .prefix = prefix;
075: }
076:
077: public int getPrefix() {
078: return prefix;
079: }
080:
081: /**
082: * Sets what events this collection handles
083: *
084: * @param mask mask of events (see flags of {@link ClipAction})
085: */
086: public void setMask(int mask) {
087: this .mask = mask;
088: }
089:
090: /**
091: * Gets mask of handled events
092: *
093: * @return mask of handled events
094: */
095: public int getMask() {
096: return mask;
097: }
098:
099: /**
100: * Adds ClipAction to this collection
101: *
102: * @param action specified clip actions
103: */
104: public void addAction(ClipAction action) {
105: if (clip_actions == null) {
106: clip_actions = new IVVector();
107: }
108: clip_actions.addElement(action);
109: }
110:
111: /**
112: * Returns all clip actions of this collection.
113: *
114: * @return all clip actions of this collection.
115: */
116: public IVVector getActions() {
117: return clip_actions;
118: }
119:
120: public static ClipActions parse(Parser p) {
121: ClipActions a = new ClipActions();
122: a.clip_actions = new IVVector();
123: a.prefix = p.getUWord();
124: int version = p.getFile().getVersion();
125: a.mask = version > 5 ? p.getUDWord() : p.getUWord();
126: for (;;) {
127: int flags = version > 5 ? p.getUDWord() : p.getUWord();
128: if (flags == 0)
129: break;
130: int length = p.getUDWord();
131: int start = p.getPos();
132: int end = start + length;
133: Program program = new Program(p.getBuf(), start, end);
134: a.clip_actions.addElement(new ClipAction(flags, program));
135: p.setPos(end);
136: }
137: return a;
138: }
139:
140: public void write(FlashOutput fob) {
141: fob.writeWord(prefix);
142: int version = fob.getFlashFile().getVersion();
143:
144: if (version > 5)
145: fob.writeDWord(mask);
146: else
147: fob.writeWord(mask);
148:
149: clip_actions.write(fob);
150:
151: if (version > 5)
152: fob.writeDWord(0);
153: else
154: fob.writeWord(0);
155: }
156:
157: public void printContent(PrintStream out, String indent) {
158: out
159: .println(indent + "Clip Actions: mask=0x"
160: + Util.w2h(mask) + " prefix=" + prefix
161: + " count=" + clip_actions.size());
162: clip_actions.printContent(out, indent + " ");
163: }
164:
165: public void apply(Context context) {
166: for (int i = 0; i < clip_actions.size(); i++) {
167: ClipAction a = (ClipAction) clip_actions.elementAt(i);
168: a.apply(context);
169: }
170: }
171:
172: public boolean isConstant() {
173: for (int i = 0; i < clip_actions.size(); i++) {
174: ClipAction a = (ClipAction) clip_actions.elementAt(i);
175: if (!a.isConstant())
176: return false;
177: }
178: return true;
179: }
180:
181: protected FlashItem copyInto(FlashItem item, ScriptCopier copier) {
182: super .copyInto(item, copier);
183: ((ClipActions) item).prefix = prefix;
184: ((ClipActions) item).mask = mask;
185: ((ClipActions) item).clip_actions = clip_actions
186: .getCopy(copier);
187: return item;
188: }
189:
190: public FlashItem getCopy(ScriptCopier copier) {
191: return copyInto(new ClipActions(), copier);
192: }
193:
194: }
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