/**
 * Copyright (c) 2003-2005 Craig Setera
 * All Rights Reserved.
 * Licensed under the Eclipse Public License - v 1.0
 * For more information see http://www.eclipse.org/legal/epl-v10.html
 */
package eclipseme.ui.internal.wizards;

import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.SubProgressMonitor;
import org.eclipse.jdt.core.IJavaElement;
import org.eclipse.jdt.core.IType;
import org.eclipse.jdt.ui.wizards.NewTypeWizardPage;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.IDialogSettings;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.swt.SWT;
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.Label;

import eclipseme.core.IEclipseMECoreConstants;
import eclipseme.ui.EclipseMEUIStrings;
import eclipseme.ui.internal.EclipseMEUIPlugin;

/**
 * Wizard page for the creation of a new Midlet subclass.
 * <p />
 * Copyright (c) 2003-2005 Craig Setera<br>
 * All Rights Reserved.<br>
 * Licensed under the Eclipse Public License - v 1.0<p/>
 * <br>
 * $Revision: 1.5 $
 * <br>
 * $Date: 2006/02/11 21:27:11 $
 * <br>
 * @author Craig Setera
 */
public class NewMidletWizardPage extends NewTypeWizardPage 
{
	/** The name this page is registered as within the wizard */
	public static final String PAGE_NAME = "NewMidletClass";
	
	// Dialog settings constants
	private static final String SETTINGS_ADD_TO_JAD = "addToJad";
	private static final String SETTINGS_CONSTRUCTORS = "constructors";
	private static final String SETTINGS_UNIMPLEMENTED = "unimplemented";
	
	// Controls
	private Button addToJadButton;
	private Button constructorsButton;
	private Button unimplementedButton;
	
	/**
	 * @param isClass
	 * @param pageName
	 */
	public NewMidletWizardPage() {
		super(true, PAGE_NAME);
		
		setTitle(EclipseMEUIStrings.getString(
			"wiz.newmidlet.title"));
		setDescription(EclipseMEUIStrings.getString(
			"wiz.newmidlet.description"));
	}

	/**
	 * @see org.eclipse.jface.dialogs.IDialogPage#createControl(org.eclipse.swt.widgets.Composite)
	 */
	public void createControl(Composite parent) {
		initializeDialogUnits(parent);
		
		Composite composite= new Composite(parent, SWT.NONE);
		
		int nColumns = 4;
		
		GridLayout layout = new GridLayout();
		layout.numColumns = nColumns;		
		composite.setLayout(layout);
		
		// pick & choose the wanted UI components
		
		createContainerControls(composite, nColumns);	
		createPackageControls(composite, nColumns);	
		createEnclosingTypeControls(composite, nColumns);
				
		createSeparator(composite, nColumns);
		
		createTypeNameControls(composite, nColumns);
		createModifierControls(composite, nColumns);
			
		createSuperClassControls(composite, nColumns);
		createSuperInterfacesControls(composite, nColumns);
		createMethodStubSelectionControls(composite, nColumns);
		createAddToJADSelectionControl(composite, nColumns);
		
		boolean addToJad = true;
		boolean constructors = true;
		boolean unimplemented = true;
		
		IDialogSettings section = getDialogSettings().getSection(PAGE_NAME);
		if (section != null) {
			addToJad = section.getBoolean(SETTINGS_ADD_TO_JAD);
			constructors = section.getBoolean(SETTINGS_CONSTRUCTORS);
			unimplemented = section.getBoolean(SETTINGS_UNIMPLEMENTED);
		}
		
		addToJadButton.setSelection(addToJad);
		constructorsButton.setSelection(constructors);
		unimplementedButton.setSelection(unimplemented);
		
		setControl(composite);
			
		Dialog.applyDialogFont(composite);
	}

	/**
	 * The wizard owning this page is responsible for calling this method with the
	 * current selection. The selection is used to initialize the fields of the wizard 
	 * page.
	 * 
	 * @param selection used to initialize the fields
	 */
	public void init(IStructuredSelection selection) {
		IJavaElement jelem = getInitialJavaElement(selection);
		initContainerPage(jelem);
		initTypePage(jelem);
		setSuperClass(IEclipseMECoreConstants.MIDLET_SUPERCLASS, true);
	}
	
	/**
	 * @see org.eclipse.jface.dialogs.IDialogPage#setVisible(boolean)
	 */
	public void setVisible(boolean visible) {
		super.setVisible(visible);
		if (visible) {
			setFocus();
		}
	}
	
	/**
	 * Return a boolean indicating whether the "add to jad" button was
	 * selected.
	 * 
	 * @return
	 */
	boolean isAddToJadSelected() {
		return addToJadButton.getSelection();
	}
	
	/**
	 * @see org.eclipse.jdt.ui.wizards.NewTypeWizardPage#createTypeMembers(org.eclipse.jdt.core.IType, org.eclipse.jdt.ui.wizards.NewTypeWizardPage.ImportsManager, org.eclipse.core.runtime.IProgressMonitor)
	 */
	protected void createTypeMembers(
		IType newType,
		ImportsManager imports,
		IProgressMonitor monitor)
		throws CoreException 
	{
		createInheritedMethods(
			newType, 
			constructorsButton.getSelection(), 
			unimplementedButton.getSelection(), 
			imports, 
			new SubProgressMonitor(monitor, 1));	
			
		IDialogSettings section = 
			EclipseMEUIPlugin.getDialogSettings(getDialogSettings(), PAGE_NAME); 
		section.put(SETTINGS_ADD_TO_JAD, addToJadButton.getSelection());
		section.put(SETTINGS_CONSTRUCTORS, constructorsButton.getSelection());
		section.put(SETTINGS_UNIMPLEMENTED, unimplementedButton.getSelection());
	}
		
	/**
	 * Create the "Add to JAD" selection control.
	 * 
	 * @param parent
	 * @param numColumns
	 */
	private void createAddToJADSelectionControl(Composite parent, int numColumns) {
		new Label(parent, SWT.NONE);
		Composite composite = new Composite(parent, SWT.NONE);
		
		GridLayout layout = new GridLayout();
		layout.numColumns = 1;		
		composite.setLayout(layout);
		
		GridData gridData = new GridData();
		gridData.grabExcessHorizontalSpace = true;
		gridData.horizontalSpan = numColumns - 1;
		composite.setLayoutData(gridData);
		
		addToJadButton = new Button(composite, SWT.CHECK);
		addToJadButton.setText("Add To Application Descriptor?");
	}

	/**
	 * Create the controls for method stub selection.
	 * 
	 * @param composite
	 */
	private void createMethodStubSelectionControls(
		Composite parent, 
		int numColumns) 
	{
		new Label(parent, SWT.NONE);
		Composite composite = new Composite(parent, SWT.NONE);
		
		GridLayout layout = new GridLayout();
		layout.numColumns = 1;		
		composite.setLayout(layout);
		
		GridData gridData = new GridData();
		gridData.grabExcessHorizontalSpace = true;
		gridData.horizontalSpan = numColumns - 1;
		composite.setLayoutData(gridData);
		
		Label l = new Label(composite, SWT.NONE);
		l.setText(
				EclipseMEUIStrings.getString("wiz.newmidlet.which_methods"));
		
		constructorsButton = new Button(composite, SWT.CHECK);
		constructorsButton.setText(
				EclipseMEUIStrings.getString("wiz.newmidlet.super_const"));
		constructorsButton.setSelection(true);
		
		unimplementedButton = new Button(composite, SWT.CHECK);
		unimplementedButton.setText(
				EclipseMEUIStrings.getString("wiz.newmidlet.unimplemented"));
		unimplementedButton.setSelection(true);
	}
}