JPanelScreen.java :  » Remote » androidscreencast » net » srcz » android » screencast » ui » Android Open Source

package net.srcz.android.screencast.ui;

import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.Point;

import javax.swing.JPanel;

public class JPanelScreen extends JPanel {

  public float coef = 1;
  double origX;
  double origY;
  boolean landscape;
  
  Dimension size = null;
  Image image = null;
  
  public JPanelScreen() {
    this.setFocusable(true);
  }
  
  public void handleNewImage(Dimension size, Image image, boolean landscape) {
    this.landscape = landscape;
    this.size = size;
    this.image = image;
    repaint();
  }
  
  protected void paintComponent(Graphics g) {
    if(size == null)
      return;
    if(size.height == 0)
      return;
    g.clearRect(0, 0, getWidth(), getHeight());
    double width = Math.min(getWidth(), size.width*getHeight()/size.height);
    coef = (float)width / (float)size.width;
    double height = width*size.height/size.width;
    origX = (getWidth() - width) / 2;
    origY = (getHeight() - height) / 2;
    g.drawImage(image, (int)origX, (int)origY, (int)width, (int)height, this);
  }
  
  
  public Point getRawPoint(Point p1) {
    Point p2 = new Point();
    p2.x = (int)((p1.x - origX)/coef);
    p2.y = (int)((p1.y - origY)/coef);
    return p2;
  }
  
}