package osp.ui;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

import javax.swing.BorderFactory;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JSplitPane;
import javax.swing.WindowConstants;

import osp.FieldOfView;
import osp.Image;
import osp.Reader;
import osp.Writer;
import osp.utils.TableurModel;
import osp.utils.TableurPanel;
import osp.utils.WaitGlassPanel;

/**
 * This class is the main support for the display. 
 * There are 2 main panels : one to select images with a tree, 
 * another one to display them and working on.
 * The informations about objects loaded and selected are below those panels. 
 */

public class OSPE_MainFrame extends JFrame implements 
StatusInterface, AccessMenuInterface, AccessSlitMenuInterface {
	private static final long serialVersionUID = 1L;


	private JPanel contentPane;
	private JSplitPane splitPane;
	private JLabel statusBarLabel;
	public OspeMenuBar menuBar;
	private OSPE_SelectPanel selectPanel;
	
	private OSPE_VisuPanel visuPanel;
	public JSplitPane dualPane;

	private TableurPanel tableurPanel;

	private OSPE_BrowserToolBar toolBar;
	public OSPE_SettingsPanel settingsPanel;
	protected FieldOfView fov;

	protected Reader theReader;
	protected Writer theWriter;

	private OspeControl ospeControl;
	/**
	 * Constructor.
	 * 
	 * @param f
	 *            : field of view
	 */
	public OSPE_MainFrame(FieldOfView f) {
		fov = f;
		theReader = new Reader(this, fov);
		theWriter = new Writer(this, fov);
		
		ospeControl = new OspeControl(this,  getVisuPanel(), 
				getSelectPanel(), getSettingsPanel(), fov, getToolBar(),theReader, theWriter,
				getMenu()) ;
		getVisuPanel().setControl(ospeControl);
		visuPanel.setWriter(theWriter);
		getMenu().setControl(ospeControl);
		getToolBar().setControl(ospeControl);
		getSelectPanel().setControl(ospeControl);
		fov.addObserver(ospeControl);
		setName("OSPE_MainFrame");
		setDefaultLookAndFeelDecorated(false);
		this.setDefaultCloseOperation(WindowConstants.DO_NOTHING_ON_CLOSE);

		setGlassPane(new WaitGlassPanel());
		setJMenuBar(getMenu());
		setContentPane(getContentPanel());

		setResizable(true);
		setTitle("OSP EDITOR ");
		pack();
		setVisible(true);
		addFrameListener();
		try {
			Thread.sleep(1000);
		} catch (InterruptedException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		ospeControl.createFirstProject();
		
		
		
	}

	private OSPE_SettingsPanel getSettingsPanel() {
		if (settingsPanel == null){
			settingsPanel = new OSPE_SettingsPanel();
		}
		return settingsPanel;
	}

	/**
	 * 
	 */
	private void addFrameListener() {
		this.addWindowListener(new WindowAdapter() {
			@Override
			public void windowClosing(WindowEvent e) {
				menuBar.getProjectExitMenu().doClick();
			}
		});

//		this.addComponentListener(new ComponentAdapter() {
//			public void componentResized(ComponentEvent evt) {
//				if (fov.getSelectedImage() >= 0)
//					visuPanel.update(null, null);
//			}
//		});
	}

	/**
	 * 
	 */
	private JLabel getStatusBarLabel() {
		if (statusBarLabel == null) {
			statusBarLabel = new JLabel("Press F1 Key for OSP_Editor Help");
			statusBarLabel.setBorder(BorderFactory.createEtchedBorder());
		}
		return statusBarLabel;
	}

	/**
	 * @return
	 */
	private JSplitPane getDualPane() {
		if (dualPane == null) {
			dualPane = new JSplitPane();
			dualPane.setOrientation(JSplitPane.VERTICAL_SPLIT);
			dualPane.setDividerSize(10);
			dualPane.setOneTouchExpandable(true);
			dualPane.add(getTableurPanel(), JSplitPane.BOTTOM);
			dualPane.add(getSplitPane(), JSplitPane.TOP);
		}
		return dualPane;
	}

	public TableurPanel getTableurPanel() {
		if (tableurPanel == null) {
			int defNbCol;
			TableurModel tableurModel = new TableurModel(visuPanel); 
			 defNbCol = tableurModel.getColumnCount();
			int[] defColSize = tableurModel.getColSize();
			tableurPanel = new TableurPanel(tableurModel,visuPanel, defColSize);
		}
		return tableurPanel;
	}

	/**
	 * 
	 */
	private JSplitPane getSplitPane() {
		if (splitPane == null) {
			splitPane = new JSplitPane();
			splitPane.setOrientation(JSplitPane.HORIZONTAL_SPLIT);
			splitPane.setDividerSize(10);
			splitPane.setOneTouchExpandable(true);
			splitPane.add(getVisuPanel(), JSplitPane.RIGHT);
			splitPane.add(getSelectPanel(), JSplitPane.LEFT);
			
		}
		return splitPane;
	}

	/**
	 * Visualization Panel Creation
	 * 
	 */
	public OSPE_VisuPanel getVisuPanel() {
		if (visuPanel == null){
			visuPanel = new OSPE_VisuPanel(this, this, fov, theWriter, getTableurPanel());
			visuPanel.setBorder(BorderFactory.createEtchedBorder());
			
		}
		return visuPanel;
	}

	/** SelectPanel Creation
	 * 
	 */
	public OSPE_SelectPanel getSelectPanel() {
		if (selectPanel == null) {
			selectPanel = new OSPE_SelectPanel(this, this,fov, getVisuPanel());
			selectPanel.setBorder(BorderFactory.createEtchedBorder());
			selectPanel.setPreferredSize(new Dimension(250, 800));
		}
		return selectPanel;
	}
	
	
	/**
	 * 
	 * @return
	 */
	public JPanel getContentPanel() {
		if (contentPane == null) {
			contentPane = new JPanel(new BorderLayout());
			contentPane.add(getDualPane(), BorderLayout.CENTER);
			contentPane.add(getStatusBarLabel(), BorderLayout.SOUTH);
			contentPane.add(getToolBar(), BorderLayout.NORTH);
			// New windows
			// settingsPanel = new OSPE_SettingsPanel();
			// settingsPanel.setVisible(false);
		}
		return contentPane;
	}

	/**
	 * Get the actions controller 
	 * @return OspeControl
	 */
	public OspeControl getOspeControl() {
		return ospeControl;
	}
	
	/**
	 * Set a status bar 
	 * @param s: text to display in the Status bar
	 *            
	 */
	@Override
	public void setStatusBarText(String s) {
		getStatusBarLabel().setForeground(Color.black);
		getStatusBarLabel().setText(s);
	}

	/**
	 * Put color in the status bar.
	 * @param c: Color of the text to display
	 * @param s: text to display in the Status bar
	 */
	@Override
	public void setStatusBarText(Color c, String s) {
		statusBarLabel.setForeground(c);
		statusBarLabel.setText(s);
	}
	
	
	/**
	 * Creation, Activation or not of menu options and toolbar buttons.
	 * 
	 */
	public OSPE_BrowserToolBar getToolBar() {
		if (toolBar == null) {
			toolBar = new OSPE_BrowserToolBar();
		}
		return toolBar;
	}

	/**
	 * Function to create menus bar
	 */
	private OspeMenuBar getMenu() {
		if (menuBar == null) {
			menuBar = new OspeMenuBar();
		}
		return menuBar;
	}

	@Override
	public boolean isjMenuSlitEnabled() {
		return getMenu().jMenuSlit.isEnabled();
	}

	@Override
	public void setjMenuSlitEnabled(boolean b) {
		getMenu().jMenuSlit.setEnabled(b);
	}
	
	@Override
	public void enableButtonsForPicObject(boolean b) {
		for (int i = 0; i < getToolBar().getComponentCount() - 1; i++)
			getToolBar().getComponent(i).setEnabled(b);
		for (int i = 0; i < menuBar.getComponentCount() - 1; i++)
			menuBar.getComponent(i).setEnabled(b);
		getSelectPanel().getFovTree().setEnabled(b);
	}

	@Override
	public void clickOnMaskStop() {
		menuBar.jMenuMaskStop.doClick();
		
	}

	@Override
	public boolean isMenuDisplayPlotObjectsSelected() {
		return menuBar.jMenuDisplayPlotObjects.isSelected();
		
	}

	@Override
	public void clickOnMenuDisplayPlotSelectedSpectra() {
		menuBar.jMenuDisplayPlotSelectedSpectra.doClick();
	}

	@Override
	public boolean isMenuDisplayPlotDetectorSelected() {
		return menuBar.jMenuDisplayPlotDetector.isSelected();
	}

	@Override
	public boolean isMenuDisplayPlotMaskSelected() {
		return menuBar.jMenuDisplayPlotMask.isSelected();
	}

	@Override
	public boolean isMenuDisplayPlotMaskCenterSelected() {
		return menuBar.jMenuDisplayPlotMaskCenter.isSelected();
	}
	/**
	 *  Enable / disable some buttons of the menu bar 
	 *  following the load of an image or not.
	 */
	@Override
	public void updateButtons() {
		
		menuBar.jMenuImage.setEnabled(true);
		menuBar.jMenuImageLoad.setEnabled(true);
		
		// An image can be loaded  
		if (visuPanel.getNavigatorImageDisplay().getState() == 0){ 
			menuBar.jMenuProjectSave.setEnabled(true);
			menuBar.jMenuObject.setEnabled(false);
			menuBar.jMenuImageRemove.setEnabled(false);
			menuBar.jMenuImageEditCuts.setEnabled(false);
		} 
		else  // it is.
			if (visuPanel.getNavigatorImageDisplay().getState() > 0)
			{ 
			menuBar.jMenuObject.setEnabled(true);
			menuBar.jMenuImageRemove.setEnabled(true);
			menuBar.jMenuImageEditCuts.setEnabled(true);
			}

		if (fov.getSelectedImage() >= 0) 
		{
			updateButtonsIfImage();
			final Image currIm=fov.getCurrentImage();
			
			
			if ((currIm.getNbrObjects()>0) || (currIm.getNbrMasks()>0))
			{
					updateButtonsIfObjects(currIm);
			}
			else 
			{
				disableButtonsMasksSlits();
				menuBar.jMenuMask.setEnabled(true);
				disableMaskFontionality();
			}
		} 
		else 
		{ // There is no image
			disableButtonsMasksSlits();
			disableMaskFontionality();
		}
		
	}

	/**
	 * 
	 */
	public void disableButtonsMasksSlits() {
		//
		menuBar.jMenuMask.setEnabled(false);
		//
		visuPanel.searchButton.setEnabled(false);
		menuBar.jMenuSlit.setEnabled(false);
		toolBar.getButtonUndoToolBar().setEnabled(false);
		toolBar.enableButtonDuringMaskEdition(false);
	}

	/** 
	 * Enable / disable some buttons of the menu bar when an image is loaded 
	 * and following if there is a mask or not. 
	 * 
	 */
	public void updateButtonsIfImage() {
		
		menuBar.jMenuObject.setEnabled(true);
		;
	}
	
	/**
	 * Update buttons if mask selected. 
	 * 
	 */
	public void updateButtonsIfObjects(Image im) 
	{		
			if ((im.getNbrObjects()>0)|| (im.getNbrMasks()>0))
			{
				menuBar.jMenuMask.setEnabled(true);
				menuBar.jMenuMaskAdd.setEnabled(true);
				if (im.getNbrObjects()>0)
					visuPanel.searchButton.setEnabled(true);
				
			
				if (im.getSelectedMask() >= 0 &&  
						!im.getCurrentMask().validated) 
				{
					// There is a mask
					menuBar.jMenuMaskMove.setEnabled(true);
					menuBar.jMenuMaskTurn.setEnabled(true);
					menuBar.jMenuMaskRemove.setEnabled(true);
					menuBar.jMenuMaskStop.setEnabled(true);
					menuBar.jMenuSlit.setEnabled(true);
					
					toolBar.enableButtonDuringMaskEdition(true);

					visuPanel.validateButton.setEnabled(true);
					visuPanel.writeButton.setEnabled(true);

					if (im.getCurrentMask().getHistory().isEmpty()) 
					{
						toolBar.getButtonUndoToolBar().setEnabled(false);
						menuBar.getMenuMaskUndoItem().setEnabled(false);
						menuBar.getMenuMaskUndoItem().setText("Undo last action");
					} 
					else 
					{
						toolBar.getButtonUndoToolBar().setEnabled(true);
						menuBar.getMenuMaskUndoItem().setEnabled(true);
						menuBar.getMenuMaskUndoItem().setText("Undo "
							+ im.getCurrentMask().getHistory().getLastEntry()
									.getName());
					}
				} 
			
				else 
				{	
				// There is no mask or it's validated.
					disableMaskFontionality();
					if ((im.getSelectedMask()>=0) && (im.getNbrMasks()>0) && (im.getCurrentMask().validated))
					{
						visuPanel.validateButton.setEnabled(true);
						visuPanel.writeButton.setEnabled(true);
					}
					else
					{
						visuPanel.validateButton.setEnabled(false);
						visuPanel.writeButton.setEnabled(false);
					}
				}
			}
			else // No objects
			{
				menuBar.jMenuMask.setEnabled(true);
			}
		}
	
	public void disableMaskFontionality() 
	{
		menuBar.jMenuMaskMove.setEnabled(false);
		menuBar.jMenuMaskTurn.setEnabled(false);
		menuBar.jMenuMaskRemove.setEnabled(false);
		menuBar.jMenuMaskStop.setEnabled(false);

		toolBar.getButtonUndoToolBar().setEnabled(false);
		menuBar.getMenuMaskUndoItem().setEnabled(false);
		menuBar.getMenuMaskUndoItem().setText("Undo last action");

		menuBar.jMenuSlit.setEnabled(false);

		toolBar.enableButtonDuringMaskEdition(false);
	}
	
} // End class