/*
 * Created on 12-jul-2003
 *
 */
package com.quantum.view.bookmark;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import java.util.Vector;

import com.quantum.IQuantumConstants;

import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.List;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.help.WorkbenchHelp;

/**
 * @author panic
 *
 */
public class AddSchemaDialog extends Dialog {

    protected Vector input;
    protected List list;
    private Vector selection;
    /**
     * Creates a new AddSchemaDialog.
     */
    public AddSchemaDialog(Shell parentShell, Vector input) {
        super(parentShell);
        this.input = input;
        this.list = null;
        selection = null;
    }
    /* (non-Javadoc)
     * Method declared on Window.
     */
    protected void configureShell(Shell newShell) {
        super.configureShell(newShell);
        newShell.setText("Set Schemas");
        WorkbenchHelp.setHelp(
            newShell,
            IQuantumConstants.ADD_SCHEMA_DIALOG_CONTEXT);
    }
    /* (non-Javadoc)
     * Method declared on Dialog
     */
    protected Control createDialogArea(Composite parent) {
        Composite composite = (Composite) super.createDialogArea(parent);

        list = new List(composite, SWT.BORDER | SWT.V_SCROLL | SWT.MULTI);
        GridData data = new GridData(GridData.FILL_BOTH);
        list.setLayoutData(data);
        for (Iterator iter = input.iterator(); iter.hasNext();) {
            String element = (String) iter.next();
            list.add(element);
        }
        return composite;
    }

    /* (non-Javadoc)
     * @see org.eclipse.jface.dialogs.Dialog#okPressed()
     */
    protected void okPressed() {
        // If it's OK, then the selection is not null. Null is used to signal a canceled dialog.
        selection = new Vector();
        if (list != null) {
            String selecStr[] = list.getSelection();
            for (int i = 0; i < selecStr.length; i++) {
                String string = selecStr[i];
                selection.add(string);
            }
        }
        super.okPressed();
    }

    public Collection getSelectedSchemas() {
        return this.selection == null ? null : new ArrayList(this.selection);
    }

}