Webber: A Website Construction Application

DrawStringBuffer.java

// Implementation of a cache for Graphics.drawString()

package library;

import java.awt.Graphics;

public class DrawStringBuffer {
	private String buffer;				// String buffer
	private Graphics g;				// Graphics context
	private int x, y;				// String start point

	// Create a buffer and/or append a string
	public void drawString(String s, int x, int y, Graphics g) {
		if (buffer==null) {			// Create a new buffer
			buffer = s;	this.g = g;	// Set string and context
			this.x = x;	this.y = y;	// Set string start point
		} else buffer += s;			// Append string to buffer
	}

	// Draw current string and empty the buffer
	public void flush() {
		if (buffer!=null) {			// String in buffer?
			g.drawString(buffer, x, y);	// Draw the string
			buffer = null;			// Empty the buffer
		}
	}
}