package com.quantum.view;

import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;

import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableColumn;

import com.quantum.Messages;
import com.quantum.model.BookmarkCollection;
import com.quantum.model.JDBCDriver;


/**
 * @author BC
 */
public class JDBCDriverTableViewer implements PropertyChangeListener {

	private TableViewer tableViewer;
	
	public JDBCDriverTableViewer(Composite container) {
		Table table = new Table(container, SWT.SINGLE | SWT.FULL_SELECTION | SWT.BORDER);
        table.setHeaderVisible(true);
        for (int i = 0, length = 4; i < length; i++) {
            TableColumn column = new TableColumn(table, SWT.NONE);
            column.setText(Messages.getString(getClass(), "driverColumn" + i));
        }
		
        for (int i = 0, length = 4; i < length; i++) {
            table.getColumn(i).pack();
        }
		
		this.tableViewer = new TableViewer(table);
		this.tableViewer.setContentProvider(new JDBCDriverContentProvider());
		this.tableViewer.setLabelProvider(new JDBCDriverLabelProvider());
		this.tableViewer.setColumnProperties(new String[] { "name", "className", "version", "jarFileName" });
		this.tableViewer.setInput(BookmarkCollection.getInstance());
		
		BookmarkCollection.getInstance().addPropertyChangeListener(this);
		registerWithAllDrivers();
	}
	/**
	 * 
	 */
	private void registerWithAllDrivers() {
		JDBCDriver[] drivers = BookmarkCollection.getInstance().getJDBCDrivers();
		for (int i = 0, length = drivers == null ? 0 : drivers.length; i < length; i++) {
			drivers[i].addPropertyChangeListener(this);
		}
	}
	/**
	 * @return
	 */
	public Control getControl() {
		return this.tableViewer.getControl();
	}
	/* (non-Javadoc)
	 * @see java.beans.PropertyChangeListener#propertyChange(java.beans.PropertyChangeEvent)
	 */
	public void propertyChange(PropertyChangeEvent event) {
		if ("drivers".equals(event.getPropertyName())) {
			registerWithAllDrivers();
			this.tableViewer.refresh();
		} else if (event.getSource() instanceof JDBCDriver) {
			this.tableViewer.refresh(event.getSource());
		}
	}
	
	public void dispose() {
		JDBCDriver[] drivers = BookmarkCollection.getInstance().getJDBCDrivers();
		for (int i = 0, length = drivers == null ? 0 : drivers.length; i < length; i++) {
			drivers[i].removePropertyChangeListener(this);
		}
		BookmarkCollection.getInstance().removePropertyChangeListener(this);
	}
}