/* ============
 
* FXGraphics2D
 
* ============
 
*
 
* (C)opyright 2014-2017, by Object Refinery Limited.
 
*
 
* http://www.jfree.org/fxgraphics2d/index.html
 
*
 
* The FXGraphics2D class has been developed by Object Refinery Limited for
 
* use in Orson Charts ( http://www.object-refinery.com/orsoncharts)
 
and
 
* JFreeChart ( http://www.jfree.org/jfreechart).
  
It may be useful for other
 
* code that uses the Graphics2D API provided by Java2D.
 
*
 
* Redistribution and use in source and binary forms, with or without
 
* modification, are permitted provided that the following conditions are met:
 
*
   
- Redistributions of source code must retain the above copyright
 
*
     
notice, this list of conditions and the following disclaimer.
 
*
   
- Redistributions in binary form must reproduce the above copyright
 
*
     
notice, this list of conditions and the following disclaimer in the
 
*
     
documentation and/or other materials provided with the distribution.
 
*
   
- Neither the name of the Object Refinery Limited nor the
 
*
     
names of its contributors may be used to endorse or promote products
 
*
     
derived from this software without specific prior written permission.
 
*
 
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 
* ARE DISCLAIMED. IN NO EVENT SHALL OBJECT REFINERY LIMITED BE LIABLE FOR ANY
 
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
*
 
*/

package org.jfree.fx;

import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.geom.Rectangle2D;
import java.text.CharacterIterator;
import javafx.geometry.Bounds;
import javafx.scene.text.FontPosture;
import javafx.scene.text.FontWeight;
import javafx.scene.text.Text;

/**
 
* A font metrics implementation for JavaFX.
  
This uses the JavaFX APIs to
 
* get font measurements, which is more exact than relying on the equivalent
 
* Java2D APIs.
 
*
 
* @since 1.5
 
*/

public class FXFontMetrics extends FontMetrics {
    

    
private Graphics2D g2;
    

    
/**
     
* Creates a new instance.
     
*
 

     
* @param font
  
the font ({@code null} not permitted).
     
* @param g2
  
the graphics target ({@code null} not permitted).
     
*/

    
public FXFontMetrics(Font font, Graphics2D g2) {
        
super(font);
        
this.g2 = g2;
    
}

    
@Override
    
public Rectangle2D getStringBounds(CharacterIterator ci, int beginIndex,
            
int limit, Graphics context) {
        
char[]
  
arr = new char[limit - beginIndex];
        
ci.setIndex(beginIndex);
        
for(int idx = 0; idx < arr.length; idx++) {
            
arr[idx] = ci.current();
            
ci.next();
        
}
        
return getStringBounds(arr, beginIndex, limit, context);
    
}

    
@Override
    
public Rectangle2D getStringBounds(char[] chars, int beginIndex, int limit,
            
Graphics context) {
        
String str = new String(chars, beginIndex, limit - beginIndex);
        
return getStringBounds(str, context);
    
}

    
@Override
    
public Rectangle2D getStringBounds(String str, int beginIndex, int limit,
            
Graphics context) {
        
String substr = str.substring(beginIndex, limit);
        
return super.getStringBounds(substr, context);
    
}

    
@Override
    
public Rectangle2D getStringBounds(String str, Graphics context) {
        
Text text = new Text(str);
        
FontWeight weight = font.isBold() ? FontWeight.BOLD : FontWeight.NORMAL;
        
FontPosture posture = font.isItalic()
                
? FontPosture.ITALIC : FontPosture.REGULAR;
        
javafx.scene.text.Font jfxfont = javafx.scene.text.Font.font(
                
font.getFamily(), weight, posture, font.getSize());
        
text.setFont(jfxfont);
        
Bounds b = text.getLayoutBounds();
        
return new Rectangle2D.Double(b.getMinX(), b.getMinY(), b.getWidth(),
                
b.getHeight());
    
}

    
@Override
    
public int stringWidth(String str) {
        
return (int) getStringBounds(str, this.g2).getWidth();
    
}
    

}