CanvasSizeMIDlet.java Source code

Introduction

Here is the source code for CanvasSizeMIDlet.java

Source

import javax.microedition.lcdui.Canvas;
import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.CommandListener;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Displayable;
import javax.microedition.lcdui.Graphics;
import javax.microedition.midlet.MIDlet;

public class CanvasSizeMIDlet extends MIDlet implements CommandListener {

    private Command exitCommand;

    Display display;

    public void startApp() {

        display = Display.getDisplay(this);
        exitCommand = new Command("Exit", Command.EXIT, 1);
        Displayable SizeCanvas = new SizeCanvas();

        SizeCanvas.addCommand(exitCommand);
        SizeCanvas.setCommandListener(this);
        display.setCurrent(SizeCanvas);
    }

    public void pauseApp() {
    }

    public void destroyApp(boolean unconditional) {
    }

    public void commandAction(Command c, Displayable s) {
        if (c == exitCommand) {
            destroyApp(false);
            notifyDestroyed();
        }
    }

}

class SizeCanvas extends Canvas {
    int width = 0;

    int height = 0;

    public void paint(Graphics g) {
        width = getWidth();
        height = getHeight();

        g.setGrayScale(255);
        g.fillRect(0, 0, width - 1, height - 1);
        g.setGrayScale(0);
        g.drawString("Stroke Style:" + g.getStrokeStyle(), 0, 60, Graphics.TOP | Graphics.LEFT);
        g.drawRect(0, 0, width - 1, height - 1);
        g.setStrokeStyle(Graphics.DOTTED);
        g.drawLine(00, 40, 60, 60);

        g.drawString(Integer.toBinaryString(width), 0, 0, Graphics.TOP | Graphics.LEFT);
        g.drawString(Integer.toBinaryString(height), 10, 20, Graphics.TOP | Graphics.LEFT);
    }

}