FormRootViewController.java

package org.nlamah.QL.View.Controllers;

import java.awt.Dimension;

import static javax.swing.ScrollPaneConstants.*;

import java.util.List;

import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JSplitPane;

import org.nlamah.QL.Builders.FormHeightEvaluator;
import org.nlamah.QL.Builders.QLViewControllersFactory;
import org.nlamah.QL.Builders.QLViewFactory;
import org.nlamah.QBase.Constants.UIConstants;
import org.nlamah.QBase.Tools.ArrayTools;
import org.nlamah.QL.Interfaces.QLFormElementViewControllerVisitor;
import org.nlamah.QL.Model.Form.Form;
import org.nlamah.QL.View.Controllers.Abstract.DeclaringFormElementViewController;
import org.nlamah.QL.View.Form.ContentView;
import org.nlamah.QL.View.Form.NavigationView;
import org.nlamah.QL.View.Form.Abstract.FormElementView;

public class FormRootViewController extends DeclaringFormElementViewController implements Runnable
{
	private final static int FRAME_WIDTH = 1000;
	private final static int FRAME_HEIGHT = 600;

	private JFrame frame;

	protected NavigationView navigationView;
	protected ContentView contentView;

	public FormRootViewController(Form form)
	{
		super(form);

		QLViewControllersFactory viewControllersFactory = new QLViewControllersFactory(this);

		setChildViewControllers(viewControllersFactory.createChildViewControllers(form));

		loadFrame();

		loadNavigationAndContentView();

		addNavigationAndContentViews();
	}

	@Override
	public void run() 
	{
		showForm();
	}

	protected void showForm()
	{
		frame.setVisible(true);
	}

	private void loadFrame()
	{
		frame = new JFrame();

		frame.setTitle(((Form) modelElement).title());
		frame.setSize(FRAME_WIDTH, FRAME_HEIGHT);
		frame.setLocationRelativeTo(null);
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	}

	private void loadNavigationAndContentView()
	{
		navigationView = new NavigationView();

		contentView = new ContentView();

		QLViewFactory viewsFactory = new QLViewFactory();

		List<FormElementView> childViews = viewsFactory.gatherChildViews(this);

		if (ArrayTools.arrayExistsAndHasElements(childViews))
		{
			for (FormElementView childView : childViews)
			{	
				contentView.add(childView);
			}
		}
	}

	private void addNavigationAndContentViews()
	{	
		JScrollPane navigationViewScrollPane = new JScrollPane(navigationView);
		navigationViewScrollPane.setHorizontalScrollBarPolicy(HORIZONTAL_SCROLLBAR_NEVER);

		JScrollPane contentViewScrollPane = new JScrollPane(contentView);
		contentViewScrollPane.setHorizontalScrollBarPolicy(HORIZONTAL_SCROLLBAR_NEVER);

		JSplitPane splitPane = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT, navigationViewScrollPane, contentViewScrollPane);

		contentView.setPreferredSize(new Dimension(UIConstants.contentWidth(), evaluateViewHeight()));

		frame.setContentPane(splitPane);
	}

	public void modelStateChanged() 
	{	
		contentView.setPreferredSize(new Dimension(UIConstants.contentWidth(), evaluateViewHeight()));
	}

	@Override
	public void accept(QLFormElementViewControllerVisitor visitor) 
	{
		visitor.visit(this);
	}

	@Override
	public int evaluateViewHeight() 
	{
		FormHeightEvaluator heightEvaluator = new FormHeightEvaluator();

		return heightEvaluator.evaluate(childViewControllers());
	}
}