/*
* JSwiff is an open source Java API for Macromedia Flash file generation
* and manipulation
*
* Copyright (C) 2004-2005 Ralf Terdic (contact@jswiff.com)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package com.jswiff.swfrecords.tags;
import com.jswiff.io.InputBitStream;
import com.jswiff.io.OutputBitStream;
import java.io.IOException;
import java.io.Serializable;
/**
* <p>
* This tag imports one or more characters from an SWF file. The imported
* characters must have been previously exported with an
* <code>ExportAssets</code> tag.
* </p>
*
* <p>
* The character IDs of the imported characters presumably differ from the IDs
* in the exporting file, therefore the characters chosen for export are
* identified by (unique) export names. The character IDs are mapped to names
* within a <code>ExportAssets</code> tag (using <code>ExportMapping</code>
* instances). After import, these names are mapped back to (different)
* character IDs within <code>ImportAssets</code> (using
* <code>ImportMapping</code> instances).
* </p>
*
* @see ExportAssets
* @since SWF 5
*/
public class ImportAssets extends Tag {
protected String url;
protected ImportMapping[] importMappings;
/**
* Creates a new ImportAssets tag. Supply the URL of the exporting SWF and
* an array of import mappings (for each imported character one).
*
* @param url URL of the source SWF
* @param importMappings character import mappings
*/
public ImportAssets(String url, ImportMapping[] importMappings) {
code = TagConstants.IMPORT_ASSETS;
this.url = url;
this.importMappings = importMappings;
}
ImportAssets() {
// empty
}
/**
* Sets the import mappings defined in this tag.
*
* @param importMappings character import mappings
*/
public void setImportMappings(ImportMapping[] importMappings) {
this.importMappings = importMappings;
}
/**
* Returns the import mappings defined in this tag.
*
* @return character import mappings
*/
public ImportMapping[] getImportMappings() {
return importMappings;
}
/**
* Sets the URL of the SWF file exporting the characters.
*
* @param url URL of import source
*/
public void setUrl(String url) {
this.url = url;
}
/**
* Returns the URL of the SWF file exporting the characters.
*
* @return URL of import source
*/
public String getUrl() {
return url;
}
protected void writeData(OutputBitStream outStream)
throws IOException {
outStream.writeString(url);
int count = importMappings.length;
outStream.writeUI16(count);
for (int i = 0; i < count; i++) {
outStream.writeUI16(importMappings[i].getCharacterId());
outStream.writeString(importMappings[i].getName());
}
}
void setData(byte[] data) throws IOException {
InputBitStream inStream = new InputBitStream(data);
if (getSWFVersion() < 6) {
if (isJapanese()) {
inStream.setShiftJIS(true);
} else {
inStream.setANSI(true);
}
}
url = inStream.readString();
int count = inStream.readUI16();
importMappings = new ImportMapping[count];
for (int i = 0; i < count; i++) {
int characterId = inStream.readUI16();
String name = inStream.readString();
importMappings[i] = new ImportMapping(name, characterId);
}
}
/**
* Defines an (immutable) import mapping for a character, containing its
* export name and the ID the character instance gets after import.
*/
public static class ImportMapping implements Serializable {
private int characterId;
private String name;
/**
* Creates a new import mapping. Supply export name of character and ID
* of imported instance.
*
* @param name export name of imported character
* @param characterId imported instance ID
*/
public ImportMapping(String name, int characterId) {
this.name = name;
this.characterId = characterId;
}
/**
* Returns the imported character instance's ID.
*
* @return character ID
*/
public int getCharacterId() {
return characterId;
}
/**
* Returns the export name of the imported character.
*
* @return export name
*/
public String getName() {
return name;
}
}
}