WorkspaceNamePage.java

/*******************************************************************************
 * Copyright (c) 2011 Subgraph.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 * 
 * Contributors:
 *     Subgraph - initial API and implementation
 ******************************************************************************/
package com.subgraph.vega.application.workspaces;

import org.eclipse.jface.wizard.WizardPage;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Text;

public class WorkspaceNamePage extends WizardPage {

	private Text workspaceNameText;
	
	WorkspaceNamePage() {
		super("firstPage");
		setTitle("New Workspace");
		setDescription("Create a new Workspace.");
		
		setPageComplete(false);
	}
	
	public void createControl(Composite parent) {
		final Composite container = createComposite(parent);
	    workspaceNameText = createWorkspaceName(container);
	}
	
	public String getWorkspaceName() {
		return workspaceNameText.getText();
	}
	
	private Text createWorkspaceName(Composite container) {
		createLabel(container, "Workspace Name:");
		final Text t = createText(container, 16);
		t.addModifyListener(new ModifyListener() {
			public void modifyText(ModifyEvent e) {
				if(t.getText().length() > 0) {
					setErrorMessage(null);
					setPageComplete(true);
				} else {
					setErrorMessage("Workspace name is empty.");
					setPageComplete(false);
				}
			}
		});
		return t;
	}
	
	private void createLabel(Composite container, String text) {
		final Label label = new Label(container, SWT.NONE);
		final GridData gd = new GridData(SWT.END, SWT.CENTER, false, false);
		label.setLayoutData(gd);
		label.setText(text);
	}
	
	private Composite createComposite(Composite parent) {
		final Composite c = new Composite(parent, SWT.NONE);
	    final GridLayout gridLayout = new GridLayout();
	    gridLayout.numColumns = 2;
	    gridLayout.verticalSpacing = 20;
	    c.setLayout(gridLayout);
	    setControl(c);
	    return c;
	}
	private Text createText(Composite container, int limit) {
		final Text text = new Text(container, SWT.BORDER);
		final GridData gd = new GridData(SWT.FILL, SWT.CENTER, true, false);
		gd.widthHint = 10 * limit;
		text.setLayoutData(gd);
		text.setTextLimit(limit);
		return text;
	}

}