org.eclipse.osbp.wizard.ui/src/org/eclipse/osbp/wizard/ui/basic/BasicNewProjectWizardPage.java

/**
 *                                                                            
 * Copyright (c) 2011, 2016 - Loetz GmbH&Co.KG (69115 Heidelberg, Germany)
 *                                                                            
 * 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:   
 * Christophe Loetz (Loetz GmbH&Co.KG) - initial implementation 
 */
package org.eclipse.osbp.wizard.ui.basic;

import org.eclipse.core.runtime.IStatus;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.wizard.WizardPage;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.internal.ide.IIDEHelpContextIds;
import org.eclipse.ui.internal.ide.dialogs.ProjectContentsLocationArea.IErrorMessageReporter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public abstract class BasicNewProjectWizardPage extends WizardPage {

	protected static final Logger LOGGER = LoggerFactory.getLogger(BasicNewProjectWizardPage.class);

    // constants
    protected static final int SIZING_TEXT_FIELD_WIDTH = 250;

    public Composite projectGroup;
    protected GridLayout layout;
    public GridData data;
	
	protected BasicNewProjectWizardPage(BasicNewProjectWizard wizard, String pageName) {
		super(wizard.translator.getDocumentation(wizard, pageName));
		this.wizard = wizard;
		setTitle(wizard.getWindowTitle());
		setDescription(wizard.translator.getDocumentation(wizard, pageName));
	    setPageComplete(false);
	}
	
	protected final BasicNewProjectWizard wizard;
    
	/** (non-Javadoc)
     * Method declared on IDialogPage.
     */
    public final void createControl(Composite parent) {
        Composite composite = new Composite(parent, SWT.NULL);
    
        initializeDialogUnits(parent);

        PlatformUI.getWorkbench().getHelpSystem().setHelp(composite,
                IIDEHelpContextIds.NEW_PROJECT_WIZARD_PAGE);

        composite.setLayout(new GridLayout());
        composite.setLayoutData(new GridData(GridData.FILL_BOTH));

        // project specification group
        projectGroup = new Composite(composite, SWT.NONE);
        layout = new GridLayout();
        layout.numColumns = 2;
        data = new GridData(GridData.FILL_HORIZONTAL);
        data.widthHint = SIZING_TEXT_FIELD_WIDTH;
        projectGroup.setLayout(layout);
        projectGroup.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
        
        createProjectNameGroup(composite);
		
        setPageComplete(wizard.validatePage(this));
        // Show description on opening
        setErrorMessage(null);
        setMessage(null);
        setControl(composite);
        Dialog.applyDialogFont(composite);
    }
    
    /**
	 * Get an error reporter for the receiver.
	 * @return IErrorMessageReporter
	 */
	protected final IErrorMessageReporter getErrorReporter() {
		return new IErrorMessageReporter(){
			/* (non-Javadoc)
			 * @see org.eclipse.ui.internal.ide.dialogs.ProjectContentsLocationArea.IErrorMessageReporter#reportError(java.lang.String)
			 */
			public void reportError(String errorMessage, boolean infoOnly) {
				if (infoOnly) {
					setMessage(errorMessage, IStatus.INFO);
					setErrorMessage(null);
				}
				else
					setErrorMessage(errorMessage);
				boolean valid = errorMessage == null;
				if(valid) {
					valid = wizard.validatePage(BasicNewProjectWizardPage.this);
				}
				setPageComplete(valid);
			}
		};
	}

    /**
     * Creates the project name specification controls.
     *
     * @param parent the parent composite
     */
	protected abstract void createProjectNameGroup(Composite parent);

    /**
     * Returns the useDefaults.
     * @return boolean
     */
    public final boolean useDefaults() {
        return wizard.locationArea.isDefault();
    }
}