[mirrors/Programs.git] / java / pokusy / canvas.java

import javax.swing.*;
import java.awt.*;

class DrawingCanvas extends Canvas { 
  public DrawingCanvas() {  
    setSize(100, 50);
  }
  public String text = new String("LOOOL");
  public void paint(Graphics g) { 
		createBufferStrategy(2); //double buffered

		Graphics2D g2D=(Graphics2D) g; // cast to 2D
    g2D.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
                         RenderingHints.VALUE_ANTIALIAS_ON);
    

    g.drawRect(0, 0, 99, 49); // draw border 
    g.drawString(text, 20,20); 
  } 
}

public class canvas {
	public static void main(String[] args) throws InterruptedException {
		JFrame window = new JFrame();
		window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		window.setSize(640,480);
		window.setTitle("hello");
		window.setVisible(true);

		DrawingCanvas canvas = new DrawingCanvas();
		window.getContentPane().add(canvas); 

		Thread.sleep(2000);
    canvas.text="omg";
		canvas.repaint();
	}
}
Commit	Line	Data
	1	import javax.swing.*;
	2	import java.awt.*;
	3
	4	class DrawingCanvas extends Canvas {
	5	public DrawingCanvas() {
	6	setSize(100, 50);
	7	}
	8	public String text = new String("LOOOL");
	9	public void paint(Graphics g) {
	10	createBufferStrategy(2); //double buffered
	11
	12	Graphics2D g2D=(Graphics2D) g; // cast to 2D
	13	g2D.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
	14	RenderingHints.VALUE_ANTIALIAS_ON);
	15
	16
	17	g.drawRect(0, 0, 99, 49); // draw border
	18	g.drawString(text, 20,20);
	19	}
	20	}
	21
	22	public class canvas {
	23	public static void main(String[] args) throws InterruptedException {
	24	JFrame window = new JFrame();
	25	window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	26	window.setSize(640,480);
	27	window.setTitle("hello");
	28	window.setVisible(true);
	29
	30	DrawingCanvas canvas = new DrawingCanvas();
	31	window.getContentPane().add(canvas);
	32
	33	Thread.sleep(2000);
	34	canvas.text="omg";
	35	canvas.repaint();
	36	}
	37	}