CTextField.java

// -*- mode: java; c-basic-offset: 2; -*-
// Copyright 2009-2011 Google, All Rights reserved
// Copyright 2011-2012 MIT, All rights reserved
// Released under the MIT License https://raw.github.com/mit-cml/app-inventor/master/mitlicense.txt
package openblocks.codeblockutil;

import java.awt.BasicStroke;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Insets;
import java.awt.RenderingHints;
import java.awt.Shape;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.MouseMotionListener;
import java.awt.geom.Ellipse2D;
import java.awt.geom.GeneralPath;
import java.text.Format;

import javax.swing.JFormattedTextField;
import javax.swing.JFrame;
import javax.swing.event.DocumentListener;

public class CTextField extends JFormattedTextField implements MouseListener, MouseMotionListener{
	private static final long serialVersionUID = 328149080250L;
	private boolean pressed = false;
	private boolean mouseover = false;
	public CTextField (){
		this("");
	}
	public CTextField (Format format){
		super(format);
		this.setBorder(null);
		this.setFont(new Font("Ariel", Font.PLAIN, 13));
		
		this.setOpaque(false);
		this.addMouseListener(this);
		this.addMouseMotionListener(this);
		this.revalidate();
		this.repaint();
	}
	public CTextField (String text){
		super(text);
		this.setBorder(null);
		this.setFont(new Font("Ariel", Font.PLAIN, 13));
		
		this.setOpaque(false);
		this.addMouseListener(this);
		this.addMouseMotionListener(this);
		this.revalidate();
		this.repaint();
	}
	public Insets getInsets(){
		int h= this.getHeight();
		return new Insets(h/6,h/2,h/6,h);
	}
	private Shape getXCross(int w, int h){
		GeneralPath shape = new GeneralPath();
		shape.moveTo(w-h*2/3,h/3);
		shape.lineTo(w-h/3,h*2/3);
		shape.moveTo(w-h/3, h/3);
		shape.lineTo(w-h*2/3, h*2/3);
		return shape;
	}
	private Shape getXBox(int w, int h){
		Ellipse2D.Double box = new Ellipse2D.Double(w-5*h/6, h/6, 2*h/3, 2*h/3);
		return box;
	}
	
	public void paint(Graphics g){
		Graphics2D g2 = (Graphics2D)g;
		int w = this.getWidth();
		int h = this.getHeight();
		g2.setRenderingHint(
				RenderingHints.KEY_ANTIALIASING,
				RenderingHints.VALUE_ANTIALIAS_ON);
		
		
		g2.setColor(Color.white);
		g2.fillRoundRect(0,0,w,h,h,h);
		
		if(mouseover){
			if(pressed){
				g2.setColor(new Color(170,0,0));
			}else{
				g2.setColor(Color.red);
			}
		}else{
			g2.setColor(Color.pink);
		}
		g2.fill(this.getXBox(w, h));
		
		g2.setColor(Color.white);
		g2.setStroke(new BasicStroke(2));
		g2.draw(this.getXCross(w, h));
		
		super.paint(g);
	}
	public void addDocumentListener(DocumentListener l){
		this.getDocument().addDocumentListener(l);
	}
	public void mouseClicked(MouseEvent e){}
	public void mouseEntered(MouseEvent e) {}
	public void mouseExited(MouseEvent e) {
		mouseover = false;
		this.repaint();
	}
	public void mousePressed(MouseEvent e) {
		if (e.getX()> this.getWidth()-this.getHeight()*5/6){
			pressed = true;
			this.repaint();
		}
	}
	public void mouseReleased(MouseEvent e) {
		if (e.getX()> this.getWidth()-this.getHeight()*5/6){
			this.setText("");
			pressed=false;
			this.repaint();
		}
	}
	public void mouseMoved(MouseEvent e){
		if (e.getX()> this.getWidth()-this.getHeight()*5/6){
			if(mouseover == false){
				mouseover = true;
				this.repaint();
			}
		}else{
			if(mouseover == true){
				mouseover = false;
				this.repaint();
			}
		}
	}
	public void mouseDragged(MouseEvent e){}
	public static void main(String[] args) {
		JFrame f = new JFrame();
		f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		f.setLayout(new BorderLayout());
		f.setSize(400,100);
		f.add(new CTextField());
        
		f.setVisible(true);
	}
}