ImageView.java

package android.widget;

import java.awt.Color;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.event.FocusEvent;
import java.awt.event.FocusListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;

import javax.swing.JComponent;

import android.content.Context;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;
import android.util.Log;
import android.view.View;

import static com.applang.Util.*;

public class ImageView extends View
{
	protected static final String TAG = ImageView.class.getSimpleName();
	
	public ImageView(Context context) {
		super(context, null);
	}

	public ImageView(Context context, AttributeSet attrs) {
		super(context, attrs);
	}

	@Override
	protected void create() {
		Picture picture = new Picture();
		setComponent(picture);
	}
	
	public Image getImage() {
		Picture picture = taggedComponent();
		if (picture != null)
			return picture.getImage();
		else
			return null;
	}
	
	public void setImage(Image image) {
		Picture picture = taggedComponent();
		if (picture != null) {
			picture.setImage(image);
    		imageChanged();
		}
	}
	
    @Override
	public void applyAttributes() {
		if (attributeSet != null) {
	    	if (attributeSet.hasAttribute("android:src")) {
	    		Drawable drawable = attributeSet.getAttributeResourceItem("android:src");
	    		if (drawable != null) {
	    			setImage(drawable.getImage());
	    		}
			}
		}
		super.applyAttributes();
	}
	
	private Job<JComponent> onImageChanged = null;
	
	private void imageChanged() {
		try {
			if (onImageChanged != null)
				onImageChanged.perform((JComponent) taggedComponent(), objects());
		} catch (Exception e) {
			Log.e(TAG, "textChanged", e);
		}
	}

	public void setOnTextChanged(final Job<JComponent> onImageChanged) {
		this.onImageChanged = onImageChanged;
	}
    
    public static class Picture extends JComponent implements MouseListener, FocusListener
    {
    	private Image image = null;
    	
    	public Image getImage() {
    		return image;
    	}
    	
    	public void setImage(Image image) {
    		this.image = image;
    	}
    	
    	public Picture() {
    		setFocusable(true);
    		addMouseListener(this);
    		addFocusListener(this);
    	}
    	
    	public void mouseClicked(MouseEvent e) {
    		requestFocusInWindow();
    	}
    	
    	public void mouseEntered(MouseEvent e) { }
    	public void mouseExited(MouseEvent e) { }
    	public void mousePressed(MouseEvent e) { }
    	public void mouseReleased(MouseEvent e) { }
    	
    	public void focusGained(FocusEvent e) {
    		this.repaint();
    	}
    	
    	public void focusLost(FocusEvent e) {
    		this.repaint();
    	}
    	
    	protected void paintComponent(Graphics graphics) {
    		Graphics g = graphics.create();
    		g.setColor(Color.WHITE);
    		g.fillRect(0, 0, image == null ? 125 : image.getWidth(this),
    				image == null ? 125 : image.getHeight(this));
    		if (image != null) {
    			g.drawImage(image, 0, 0, this);
    		}
    		if (isFocusOwner()) {
    			g.setColor(Color.RED);
    		} else {
    			g.setColor(Color.BLACK);
    		}
    		g.drawRect(0, 0, image == null ? 125 : image.getWidth(this),
    				image == null ? 125 : image.getHeight(this));
    		g.dispose();
    	}
    }

}