DMPanel.java

package com.drawbridge.dm;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.util.LinkedList;

import javax.swing.JButton;
import javax.swing.JOptionPane;
import javax.swing.SwingUtilities;

import com.drawbridge.dm.DMImageFactory.DMImage;
import com.drawbridge.dm.DMModel.DMModelListener;
import com.drawbridge.utils.BackgroundSelector.BackgroundSelectorListener;
import com.drawbridge.utils.GraphicUtils;
import com.drawbridge.utils.Palette;
import com.drawbridge.utils.SegmentPanel;
import com.drawbridge.utils.TitlePanel;
import com.drawbridge.utils.Utils;


public class DMPanel extends SegmentPanel implements DMModelListener, BackgroundSelectorListener{
	

	private static final long				serialVersionUID	= 1L;
	private static DMPanel					mInstance			= null;
	public TitlePanel mTitlePanel;
	public DMModel mModel;
	private Palette mPalette;
	private DMCanvas mCanvas;
	
	
	public static DMPanel getInstance(){
		if(mInstance != null){
			return mInstance;
		}
		else{
			mInstance = new DMPanel();
			return mInstance;
		}
	}
	
	public DMCanvas getCanvas(){
		return mCanvas;
	}
	
	public static void reset(){
		mInstance = null;
	}
	
	protected DMPanel(){
		super();

		this.setLayout(new BorderLayout());
		mModel = new DMModel(this);
		this.addMouseListener(mouseAdapter);
		
		// Add Title Panel
		mTitlePanel = new TitlePanel("Character Panel");
		mTitlePanel.mHelpButton.addMouseListener(new MouseAdapter() {
			@Override
			public void mouseClicked(MouseEvent me)
			{
				JOptionPane.showMessageDialog(DMPanel.this, "VLJPanel has no help associated with it.");
			}
		});

		final JButton addBackgroundButton = new JButton("Change Background");


		addBackgroundButton.setIcon(GraphicUtils.loadIconFromResource("/Assets/background1.png"));
		addBackgroundButton.addMouseListener(new MouseAdapter(){

			@Override
			public void mouseClicked(MouseEvent me)
			{
				if(!mCanvas.bSelector.isVisible()){		
					mCanvas.showBackgroundSelector();
				}
				else{
					mCanvas.hideBackgroundSelector();
				}
			}
		});
	

		mTitlePanel.addButton(addBackgroundButton);
		add(mTitlePanel, BorderLayout.NORTH);
		
		// Add Canvas Panel
		mCanvas = new DMCanvas(DMCanvas.HAS_BACKGROUND_SELECTOR);
		mCanvas.setBorder(null);
		add(mCanvas, BorderLayout.CENTER);
		
	}
	

	

	
	public void drawImage(final DMImage image, final int x, final int y, final int w, final int h){
		mCanvas.removeAllExceptRequired();
		SwingUtilities.invokeLater(new Runnable(){
			@Override
			public void run()
			{
				mCanvas.add(image);
				image.setLocation(x, y);//removeAll
				image.setSize(new Dimension(w, h));
				repaint();
			}
		});
	}
	

	@Override
	public void paintComponent(Graphics g) {   
        super.paintComponent(g);
        g.setClip(5, 5, this.getWidth()-10, this.getHeight()-10);
        g.setClip(0, 0, this.getWidth(), this.getHeight());
        
        Graphics2D g2 = (Graphics2D) g;
		g2.setColor(Color.decode("#BBBBBB"));
		g2.drawLine(5, 37, this.getWidth()-6, 37);
    }
	

	MouseAdapter mouseAdapter = new MouseAdapter(){
		@Override
		public void mousePressed(MouseEvent me)
		{
			DMPanel.this.grabFocus();
		}
	};
	
	


	@Override
	public void onDMModelUpdate(final DMModel model)
	{
		SwingUtilities.invokeLater(new Runnable(){

			@Override
			public void run()
			{
				LinkedList<DMImage> images = model.getModelObjects();
				mCanvas.removeAllExceptRequired();
				for(DMImage image: images){
					mCanvas.add(image);
					image.setSize(image.getPreferredSize());
					image.setLocation(image.getPreferredLocation());
				}
				mCanvas.validate();
				mCanvas.repaint();
			}
		
		});
		
		
	}

	public static boolean hasInstance()
	{
		return mInstance != null;
	}

	@Override
	public void onBackgroundChangeRequest(String relativeLocation)
	{
		Utils.out.println(getClass(), "Background change requested:" + relativeLocation);
	}

	


		

}