/* ===================================================
 
* JFreeSVG : an SVG library for the Java(tm) platform
 
* ===================================================
 
*
 
* (C)opyright 2013-2016, by Object Refinery Limited.
  
All rights reserved.
 
*
 
* Project Info:
  
http://www.jfree.org/jfreesvg/index.html
 
*
 
* 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 3 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, see <http://www.gnu.org/licenses/>.
 
*
 
* [Oracle and Java are registered trademarks of Oracle and/or its affiliates.
 
* Other names may be trademarks of their respective owners.]
 
*
 
* If you do not wish to be bound by the terms of the GPL, an alternative
 
* commercial license can be purchased.
  
For details, please see visit the
 
* JFreeSVG home page:
 
*
 
* http://www.jfree.org/jfreesvg
 
*
 
*/

package org.jfree.graphics2d.svg;

import java.awt.Font;
import java.util.HashMap;
import java.util.Map;
import org.jfree.graphics2d.Args;

/**
 
* A default implementation of the {@link FontMapper} interface.
  
This
 
* implementation will map the Java logical fonts to equivalent SVG generic
 
* fonts.
  
You can add your own mappings if you need to.
 
*
 
* @since 1.5
 
*/

public class StandardFontMapper implements FontMapper {
    

    
/** Storage for the alternates. */
    
private Map<String, String> alternates;
    

    
/**
     
* Creates a new instance with mappings for the Java logical fonts.
     
*/

    
public StandardFontMapper() {
        
this.alternates = new HashMap<String, String>();
        
this.alternates.put(Font.DIALOG, "sans-serif");
        
this.alternates.put(Font.DIALOG_INPUT, "monospace");
        
this.alternates.put(Font.SANS_SERIF, "sans-serif");
        
this.alternates.put(Font.SERIF, "serif");
        
this.alternates.put(Font.MONOSPACED, "monospace");
    
}

    
/**
     
* Returns the mapped (alternate) font family name.
     
*
 

     
* @param family
  
the font family ({@code null} not permitted).
     
*
 

     
* @return The alternate font family name (possibly {@code null}).
 

     
*/

    
public String get(String family) {
        
Args.nullNotPermitted(family, "family");
        
return this.alternates.get(family);
    
}
    

    
/**
     
* Adds a font family mapping (if the specified alternate is
 

     
* {@code null} it has the effect of clearing any existing mapping).
     
*
 

     
* @param family
  
the font family name ({@code null} not permitted).
     
* @param alternate
  
the alternate ({@code null} permitted).
     
*/

    
public void put(String family, String alternate) {
        
Args.nullNotPermitted(family, "family");
        
this.alternates.put(family, alternate);
    
}
    

    
/**
     
* Maps the specified font family name to an alternative, or else returns
     
* the same family name.
     
*
 

     
* @param family
  
the font family name ({@code null} not permitted).
     
*
 

     
* @return The same font family name or an alternative (never {@code null}).
     
*/

    
@Override
    
public String mapFont(String family) {
        
Args.nullNotPermitted(family, "family");
        
String alternate = this.alternates.get(family);
        
if (alternate != null) {
            
return alternate;
        
}
        
return family;
    
}

}