package net.sourceforge.phpdt.sql.view;

import java.net.URL;

import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.viewers.ILabelProvider;
import org.eclipse.jface.viewers.ILabelProviderListener;
import org.eclipse.swt.graphics.Image;

import net.sourceforge.phpdt.sql.Messages;
import net.sourceforge.phpdt.sql.PHPEclipseSQLPlugin;
import net.sourceforge.phpdt.sql.view.bookmark.ColumnMetaData;
import net.sourceforge.phpdt.sql.view.bookmark.Root;
import net.sourceforge.phpdt.sql.view.bookmark.SequenceNode;
import net.sourceforge.phpdt.sql.view.bookmark.SubsetNode;
import net.sourceforge.phpdt.sql.view.bookmark.TableNode;
import net.sourceforge.phpdt.sql.view.bookmark.ViewNode;

/**
 * @author root
 *
 * Implements the ILabelProvider for the Bookmarks.
 */
public class SubsetLabelProvider implements ILabelProvider {
	/**
	 * @see org.eclipse.jface.viewers.ILabelProvider#getImage(Object)
	 */
	public Image getImage(Object element) {
	 ImageDescriptor descriptor = null;
	   if (element instanceof SubsetNode) {
	   	try {
           URL installURL = PHPEclipseSQLPlugin.getDefault().getDescriptor().getInstallURL();
           URL url = new URL(installURL, "icons/subset.gif"); //$NON-NLS-1$
      	   descriptor = ImageDescriptor.createFromURL(url);
	   	} catch (Exception e) {
	   		e.printStackTrace();
	   	}
	   } else if (element instanceof ColumnMetaData){
		try {
			ColumnMetaData columnMetaData = (ColumnMetaData) element;
			return columnMetaData.getImage();
		 } catch (Exception e) {
			 e.printStackTrace();
		 }
	   } else {
	   	return null;
	}
	   return descriptor.createImage();
	}

	/**
	 * @see org.eclipse.jface.viewers.ILabelProvider#getText(Object)
	 */
	public String getText(Object element) {
		if (element instanceof SubsetNode) {
			SubsetNode subset = (SubsetNode) element;
			return subset.getName();
		} else if (element.equals(Root.ROOT)) {
			return "ROOT"; //$NON-NLS-1$
		} else if (element instanceof TableNode) {
			TableNode node = (TableNode) element;
			if (node.isSizeVisible()) {
				return Messages.getString("BookmarkLabelProvider.TablePrefix") + element.toString() + " (" + node.getSize() + ")"; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
			} else {
				return Messages.getString("BookmarkLabelProvider.TablePrefix") + element.toString(); //$NON-NLS-1$
			}
		} else if (element instanceof ViewNode) {
			ViewNode node = (ViewNode) element;
			if (node.isSizeVisible()) {
				return Messages.getString("BookmarkLabelProvider.ViewPrefix") + element.toString() + " (" + node.getSize() + ")"; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
			} else {
				return Messages.getString("BookmarkLabelProvider.ViewPrefix") + element.toString(); //$NON-NLS-1$
			}
		} else if (element instanceof SequenceNode) {
			return Messages.getString("BookmarkLabelProvider.SequencePrefix") + element.toString(); //$NON-NLS-1$
		}
		return element.toString();
	}

	/**
	 * @see org.eclipse.jface.viewers.IBaseLabelProvider#addListener(ILabelProviderListener)
	 */
	public void addListener(ILabelProviderListener listener) {
	}

	/**
	 * @see org.eclipse.jface.viewers.IBaseLabelProvider#dispose()
	 */
	public void dispose() {
	}

	/**
	 * @see org.eclipse.jface.viewers.IBaseLabelProvider#isLabelProperty(Object, String)
	 */
	public boolean isLabelProperty(Object element, String property) {
		return false;
	}

	/**
	 * @see org.eclipse.jface.viewers.IBaseLabelProvider#removeListener(ILabelProviderListener)
	 */
	public void removeListener(ILabelProviderListener listener) {
     }
}