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/*
* Created on Sep 22, 2005
*
* To change the template for this generated file go to
* Window - Preferences - Java - Code Generation - Code and Comments
*/
package com.lowagie.text.rtf.style;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.HashMap;
import java.util.Iterator;
import com.lowagie.text.rtf.RtfBasicElement;
import com.lowagie.text.rtf.RtfElement;
import com.lowagie.text.rtf.RtfExtendedElement;
import com.lowagie.text.rtf.document.RtfDocument;
/**
* The RtfStylesheetList stores the RtfParagraphStyles that are used in the document.
*
* @version $Revision: 1.1 $
* @author Mark Hall (mhall@edu.uni-klu.ac.at)
*/
public class RtfStylesheetList extends RtfElement implements RtfExtendedElement {
/**
* The HashMap containing the RtfParagraphStyles.
*/
private HashMap styleMap = null;
/**
* Whether the default settings have been loaded.
*/
private boolean defaultsLoaded = false;
/**
* Constructs a new RtfStylesheetList for the RtfDocument.
*
* @param doc The RtfDocument this RtfStylesheetList belongs to.
*/
public RtfStylesheetList(RtfDocument doc) {
super(doc);
this.styleMap = new HashMap();
}
/**
* Register a RtfParagraphStyle with this RtfStylesheetList.
*
* @param rtfParagraphStyle The RtfParagraphStyle to add.
*/
public void registerParagraphStyle(RtfParagraphStyle rtfParagraphStyle) {
RtfParagraphStyle tempStyle = new RtfParagraphStyle(this.document, rtfParagraphStyle);
tempStyle.setStyleNumber(this.styleMap.size());
tempStyle.handleInheritance();
this.styleMap.put(tempStyle.getStyleName(), tempStyle);
}
/**
* Registers all default styles. If styles with the given name have already been registered,
* then they are NOT overwritten.
*/
private void registerDefaultStyles() {
defaultsLoaded = true;
if(!this.styleMap.containsKey(RtfParagraphStyle.STYLE_NORMAL.getStyleName())) {
registerParagraphStyle(RtfParagraphStyle.STYLE_NORMAL);
}
if(!this.styleMap.containsKey(RtfParagraphStyle.STYLE_HEADING_1.getStyleName())) {
registerParagraphStyle(RtfParagraphStyle.STYLE_HEADING_1);
}
if(!this.styleMap.containsKey(RtfParagraphStyle.STYLE_HEADING_2.getStyleName())) {
registerParagraphStyle(RtfParagraphStyle.STYLE_HEADING_2);
}
if(!this.styleMap.containsKey(RtfParagraphStyle.STYLE_HEADING_3.getStyleName())) {
registerParagraphStyle(RtfParagraphStyle.STYLE_HEADING_3);
}
}
/**
* Gets the RtfParagraphStyle with the given name. Makes sure that the defaults
* have been loaded.
*
* @param styleName The name of the RtfParagraphStyle to get.
* @return The RtfParagraphStyle with the given name or null.
*/
public RtfParagraphStyle getRtfParagraphStyle(String styleName) {
if(!defaultsLoaded) {
registerDefaultStyles();
}
if(this.styleMap.containsKey(styleName)) {
return (RtfParagraphStyle) this.styleMap.get(styleName);
} else {
return null;
}
}
/**
* Writes the definition of the stylesheet list.
*/
public byte[] writeDefinition() {
ByteArrayOutputStream result = new ByteArrayOutputStream();
try {
result.write("{".getBytes());
result.write("\\stylesheet".getBytes());
result.write(RtfBasicElement.DELIMITER);
if(this.document.getDocumentSettings().isOutputDebugLineBreaks()) {
result.write("\n".getBytes());
}
Iterator it = this.styleMap.values().iterator();
while(it.hasNext()) {
result.write(((RtfParagraphStyle) it.next()).writeDefinition());
}
result.write("}".getBytes());
if(this.document.getDocumentSettings().isOutputDebugLineBreaks()) {
result.write('\n');
}
} catch(IOException ioe) {
ioe.printStackTrace();
}
return result.toByteArray();
}
}
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