package org.jzy3d.plot3d.text.drawable;

import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics;
import java.awt.image.BufferedImage;

import org.jzy3d.maths.IntegerCoord2d;
import org.jzy3d.plot3d.rendering.textures.BufferedImageTexture;

public class TextImageRenderer {
	protected static int OFFSET_CONSTANT = 13;
	
	public TextImageRenderer(String txt, Font font){
		this.text = txt;
		this.font = font;
		
	}
	public BufferedImageTexture getImage(){
		return getImage(1);
	}

	public BufferedImageTexture getImage(float ratio){
		IntegerCoord2d c = guessImageDimension(text);
		c.x+=OFFSET_CONSTANT;
		
		BufferedImage img = new BufferedImage(((int)(c.x*ratio)), ((int)(c.y*ratio)), BufferedImage.TYPE_INT_ARGB);
		Graphics g = img.getGraphics();
		//g.drawRect(0, 0, c.x-1, c.y-1);
		g.setFont(font);
		g.drawString(text, 0, c.y-1);
		return new BufferedImageTexture(img);
	}
	
	public IntegerCoord2d guessImageDimension(String text){
		BufferedImage img = new BufferedImage(100,10, BufferedImage.TYPE_INT_ARGB);
		Graphics g = img.getGraphics();
		FontMetrics fm = g.getFontMetrics();		
		return new IntegerCoord2d( fm.stringWidth(text), fm.getHeight());
	}
	
	protected String text;
	protected Font font;
}