package com.quantum.ui.dialog;

import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.FileDialog;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;

import com.quantum.Messages;
import com.quantum.QuantumPlugin;
import com.quantum.util.JarUtil;

/**
 * @author BC
 */
public class AddDriverDialog extends Dialog {

	private FileDialog fileDialog;

	private Text driverFileName;
	private Text driverClassName;

	
	/**
	 * @param parentShell
	 */
	public AddDriverDialog(Shell parentShell) {
		super(parentShell);
	}

	protected void configureShell(Shell shell) {
		super.configureShell(shell);
		shell.setText(Messages.getString(getClass(), "title"));
	}
	
    /* (non-Javadoc)
     * Method declared on Dialog
     */
    protected Control createDialogArea(Composite parent) {
    	parent.setLayout(new GridLayout());
        Composite composite = (Composite) super.createDialogArea(parent);
		GridLayout layout = new GridLayout();
		composite.setLayout(layout);
		layout.numColumns = 3;
		GridData fullHorizontal = new GridData(
				GridData.HORIZONTAL_ALIGN_BEGINNING,
				GridData.VERTICAL_ALIGN_BEGINNING, 
				true, false);
		composite.setLayoutData(fullHorizontal);
		

		this.fileDialog = new FileDialog(composite.getShell(), SWT.OPEN);
		this.fileDialog.setFilterExtensions(new String[] { "*.jar", "*.zip", "*.*" });
		this.fileDialog.setFilterNames(new String[] {
				Messages.getString("BookmarkWizard.JarFiles"),
				Messages.getString("BookmarkWizard.ZipFiles"),
				Messages.getString("BookmarkWizard.AllFiles") });

		Label label = new Label(composite, SWT.NULL);
		label.setText(Messages.getString(getClass(), "fileName"));
		this.driverFileName = new Text(composite, SWT.BORDER | SWT.SINGLE);
		fullHorizontal = new GridData(
				GridData.HORIZONTAL_ALIGN_FILL,
				GridData.VERTICAL_ALIGN_BEGINNING, 
				true, false);
		fullHorizontal.widthHint = 150;
		this.driverFileName.setLayoutData(fullHorizontal);

		Button button = new Button(composite, SWT.PUSH);
		button.setText(Messages.getString(getClass(), "browse"));

		button.addSelectionListener(new SelectionAdapter() {
			public void widgetSelected(SelectionEvent event) {
				AddDriverDialog.this.fileDialog.setFilterPath(QuantumPlugin.getDefault()
						.getPreferenceStore().getString(
								"quantum.dialogs.bookmarkwizard.path"));
				String filename = AddDriverDialog.this.fileDialog.open();
				if (filename != null) {
					AddDriverDialog.this.driverFileName.setText(filename);
					QuantumPlugin.getDefault().getPreferenceStore().setValue(
							"quantum.dialogs.bookmarkwizard.path", filename);
				}
			}
		});

		label = new Label(composite, SWT.NULL);
		label.setText(Messages.getString(getClass(), "driverClassName"));
		this.driverClassName = new Text(composite, SWT.BORDER | SWT.SINGLE);
		fullHorizontal = new GridData(
				GridData.HORIZONTAL_ALIGN_FILL,
				GridData.VERTICAL_ALIGN_BEGINNING, 
				true, false);
		fullHorizontal.widthHint = 150;
		this.driverClassName.setLayoutData(fullHorizontal);

		button = new Button(composite, SWT.PUSH);
		button.setText(Messages.getString(getClass(), "browse"));

		button.addSelectionListener(new SelectionAdapter() {
			public void widgetSelected(SelectionEvent event) {
				SimpleSelectionDialog dialog = new SimpleSelectionDialog(
						getShell(), "Select a Driver", JarUtil.getAllDriverNames(
								getDriverFile()), QuantumPlugin.getImage("class.gif"));
				if (dialog.open() == SimpleSelectionDialog.OK) {
					AddDriverDialog.this.driverClassName.setText(
							dialog.getSelectedElement());
				}
			}
		});
		return composite;
    }
    
    protected String getDriverFile() {
    	return this.driverFileName.getText();
    }
}