/*

* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). 

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:

*

*/

package com.nokia.s60tools.imaker.internal.viewers;

import java.lang.reflect.InvocationTargetException;

import java.util.List;

import org.eclipse.core.resources.IResource;

import org.eclipse.jface.dialogs.Dialog;

import org.eclipse.jface.resource.ColorRegistry;

import org.eclipse.jface.resource.ImageDescriptor;

import org.eclipse.jface.resource.JFaceResources;

import org.eclipse.jface.viewers.ISelection;

import org.eclipse.jface.viewers.Viewer;

import org.eclipse.swt.SWT;

import org.eclipse.swt.custom.CTabFolder;

import org.eclipse.swt.custom.ViewForm;

import org.eclipse.swt.events.SelectionAdapter;

import org.eclipse.swt.events.SelectionEvent;

import org.eclipse.swt.events.SelectionListener;

import org.eclipse.swt.graphics.Color;

import org.eclipse.swt.graphics.Image;

import org.eclipse.swt.layout.GridData;

import org.eclipse.swt.layout.GridLayout;

import org.eclipse.swt.widgets.Button;

import org.eclipse.swt.widgets.Combo;

import org.eclipse.swt.widgets.Composite;

import org.eclipse.swt.widgets.Control;

import org.eclipse.swt.widgets.Label;

import org.eclipse.ui.IWorkbenchPreferenceConstants;

import org.eclipse.ui.PlatformUI;

import com.nokia.s60tools.imaker.IEnvironmentManager;

import com.nokia.s60tools.imaker.IMakerPlugin;

import com.nokia.s60tools.imaker.Messages;

import com.nokia.s60tools.imaker.SWTFactory;

import com.nokia.s60tools.imaker.internal.dialogs.LaunchIMakerDialog;

import com.nokia.s60tools.imaker.internal.managers.ProjectManager;

import com.nokia.s60tools.imaker.internal.model.IObserver;

import com.nokia.s60tools.imaker.internal.model.ImakerProperties;

public class IMakerTabsViewer extends Viewer implements IObserver {

	/**

	 * This view's control, which contains a composite area of controls

	 */

	private Composite fViewerControl;

	/**

	 * Tab folder

	 */

	private CTabFolder fTabFolder;

	private Button fRevertButton;

	/**

	 * A place holder for switching between the tabs for a config and the getting started tab

	 * @since 3.2

	 */

	private Composite fTabPlaceHolder = null;

	private ViewForm fViewform;

	private IEnvironmentManager environmentManager;

	private PreferencesTab tabPreferences;

	private Button fRestoreButton;

	private SettingsTab tabSettings;

	private Combo fConfigWidget;

	private Button deleteButton;

	private DebugTab tabDebug;

	private PlatsimTab tabPlatsim;

	private LaunchIMakerDialog dialog;

	/**

	 * Constructs a viewer in the given composite, contained by the given

	 * launch configuration dialog.

	 * 

	 * @param parent composite containing this viewer

	 * @param manager 

	 * @param launchIMakerDialog 

	 * @param dialog containing launch configuration dialog

	 * @param selection 

	 * @throws InterruptedException 

	 */

	public IMakerTabsViewer(Composite parent, IEnvironmentManager manager, LaunchIMakerDialog dialog){

		super();

		this.environmentManager = manager;

		this.dialog = dialog;

		createControl(parent);

	}

	public void initialize() {

		ImakerProperties run = environmentManager.getActiveEnvironment().getRunProperties();

		String file = run.getActiveFile();

		if(file!=null) {

			displayImakerFile(file);

		} else {

			displayImakerFile(ProjectManager.NEW_ITEM);			

		}

	}

	/**

	 * @throws InterruptedException 

	 * 

	 */

	private void displayImakerFile(String item){

		populateConfigurations(item);

		try {

			tabPreferences.loadImakerFile(item);

		} catch (InvocationTargetException e) {}

	}

	/**

	 * 

	 */

	public void populateConfigurations(String selection) {

		fConfigWidget.removeAll();

		List<IResource> files = getProjectManager().getImakerFiles();

		fConfigWidget.add(ProjectManager.NEW_ITEM);

		fConfigWidget.select(0);

		for (int i = 0; i < files.size(); i++) {

			String item = files.get(i).getLocation().toString();

			fConfigWidget.add(item);

			if(item.equals(selection)) {

				fConfigWidget.select(i+1);

			}		

		}

	}

	public IEnvironmentManager getEnvironmentManager() {

		return environmentManager;

	}

	public ProjectManager getProjectManager() {

		return dialog.getProjectManager();

	}

	@Override

	public Control getControl() {

		return fViewerControl;

	}

	@Override

	public Object getInput() {

		return null;

	}

	@Override

	public ISelection getSelection() {

		return null;

	}

	@Override

	public void refresh() {}

	@Override

	public void setInput(Object input) {

	}

	@Override

	public void setSelection(ISelection selection, boolean reveal) {

	}

	/**

	 * Creates this viewer's control This area displays the name of the launch

	 * configuration currently being edited, as well as a tab folder of tabs

	 * that are applicable to the launch configuration.

	 *

	 * @return the composite used for launch configuration editing

	 */

	private void createControl(Composite parent) {

		fViewerControl = new Composite(parent, SWT.NONE);

		GridLayout layout = new GridLayout(1,false);

		layout.marginHeight = 0;

		layout.marginWidth = 0;

		layout.horizontalSpacing = 0;

		layout.verticalSpacing = 0;

		fViewerControl.setLayout(layout);

		GridData gd = new GridData(GridData.FILL_BOTH);

		fViewerControl.setLayoutData(gd);

        fViewform = new ViewForm(fViewerControl, SWT.FLAT | SWT.BORDER);

        layout = new GridLayout(1, false);

        layout.horizontalSpacing = 0;

        layout.verticalSpacing = 0;

        fViewform.setLayout(layout);

		gd = new GridData(GridData.FILL_BOTH);

		fViewform.setLayoutData(gd);

        fViewform.setTopLeft(null);

        Composite mainComp = new Composite(fViewform, SWT.FLAT);

        layout = new GridLayout(1, false);

		layout.marginHeight = 0;

		layout.marginWidth = 0;

        layout.verticalSpacing = 0;

        layout.horizontalSpacing = 0;

        mainComp.setLayout(layout);

        fViewform.setContent(mainComp);

        Composite comboComp = new Composite(mainComp, SWT.NONE);

        comboComp.setLayout(new GridLayout(3, false));

        comboComp.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));

        Label fNameLabel = new Label(comboComp, SWT.HORIZONTAL | SWT.LEFT);

        fNameLabel.setText(Messages.getString("IMakerTabsViewer.1"));

        fNameLabel.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_BEGINNING));

        fConfigWidget = new Combo(comboComp, SWT.NONE);

        fConfigWidget.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));

        fConfigWidget.addSelectionListener(new SelectionListener() {

//			@Override

			public void widgetSelected(SelectionEvent se) {

				try {

					tabPreferences.loadImakerFile(getSelectedItem());

				} catch (InvocationTargetException e) {

					e.printStackTrace();

				}

			}

//			@Override

			public void widgetDefaultSelected(SelectionEvent se) {

				widgetSelected(se);

			}

		});

        fConfigWidget.setToolTipText(Messages.getString("IMakerTabsViewer.2"));

        deleteButton = new Button(comboComp, SWT.PUSH);

		deleteButton.setText("Delete");

		deleteButton.setEnabled(false);

        deleteButton.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_END));

		fTabPlaceHolder = new Composite(mainComp, SWT.NONE);

        layout = new GridLayout(1, false);

		layout.marginHeight = 0;

		layout.marginWidth = 0;

		fTabPlaceHolder.setLayout(layout);

		gd = new GridData(GridData.FILL_BOTH);

		fTabPlaceHolder.setLayoutData(gd);

		createTabFolder(fTabPlaceHolder);

		Composite buttonComp = new Composite(mainComp, SWT.NONE);

		GridLayout buttonCompLayout = new GridLayout();

		buttonCompLayout.numColumns = 2;

		buttonComp.setLayout(buttonCompLayout);

		gd = new GridData(GridData.FILL_HORIZONTAL);

		buttonComp.setLayoutData(gd);

		fRestoreButton = new Button(buttonComp, SWT.PUSH);

		fRestoreButton.setText(Messages.getString("IMakerTabsViewer.0")); //$NON-NLS-1$

		fRestoreButton.setToolTipText(Messages.getString("IMakerTabsViewer.11")); //$NON-NLS-1$

		gd = new GridData(GridData.HORIZONTAL_ALIGN_END);

		fRestoreButton.setLayoutData(gd);

		SWTFactory.setButtonWidthHint(fRestoreButton);

		fRestoreButton.addSelectionListener(new SelectionAdapter() {

			public void widgetSelected(SelectionEvent evt) {

				handleRestorePressed();

			}

		});

        Dialog.applyDialogFont(parent);

	}

	protected void handleNameModified() {

		if(!fConfigWidget.getText().equals("")) {

			deleteButton.setEnabled(true);

		}

	}

	private void handleRestorePressed() {

		tabPreferences.restore();

	}

	protected void handleRevertPressed() {

		if(fTabFolder.getSelection() == tabSettings) {

			tabPreferences.refreshSettingsTab();

		} else {

//			tabPreferences.revert();

		}

	}

	/**

	 * Creates the tab folder for displaying config instances

	 * @param parent

	 */

	private void createTabFolder(Composite parent) {

		if (fTabFolder == null) {

			Composite tabComposite = new Composite(parent, SWT.NONE);

	        GridLayout layout = new GridLayout(1, false);

			layout.marginHeight = 0;

			layout.marginWidth = 0;

			tabComposite.setLayout(layout);

			tabComposite.setLayoutData(new GridData(GridData.FILL_BOTH));

			ColorRegistry reg = JFaceResources.getColorRegistry();

			Color c1 = reg.get("org.eclipse.ui.workbench.ACTIVE_TAB_BG_START"), //$NON-NLS-1$

				  c2 = reg.get("org.eclipse.ui.workbench.ACTIVE_TAB_BG_END"); //$NON-NLS-1$

			fTabFolder = new CTabFolder(tabComposite, SWT.NO_REDRAW_RESIZE | SWT.NO_TRIM | SWT.FLAT);

			GridData gd = new GridData(GridData.FILL_BOTH);

			gd.horizontalSpan = 2;

			fTabFolder.setSelectionBackground(new Color[] {c1, c2},	new int[] {100}, true);

			fTabFolder.setSelectionForeground(reg.get("org.eclipse.ui.workbench.ACTIVE_TAB_TEXT_COLOR")); //$NON-NLS-1$

			fTabFolder.setSimple(PlatformUI.getPreferenceStore().getBoolean(IWorkbenchPreferenceConstants.SHOW_TRADITIONAL_STYLE_TABS));

			fTabFolder.setLayoutData(gd);

	        fTabFolder.setBorderVisible(true);

			fTabFolder.setFont(tabComposite.getFont());

			fTabFolder.addSelectionListener(new SelectionListener() {

//				@Override

				public void widgetSelected(SelectionEvent e) {

					if(e.item instanceof DebugTab) {

						tabDebug.refesh();

					}

				}

//				@Override

				public void widgetDefaultSelected(SelectionEvent e) {

					widgetSelected(e);

				}

			});

			createTabs(fTabFolder);

			fTabFolder.setSelection(0);

		}

	}

	private void createTabs(CTabFolder tabFolder) {

		tabPreferences = new PreferencesTab(tabFolder, SWT.NONE, this);

		PreferencesTab.currentPreferencesTab = tabPreferences;

		tabPreferences.setText(Messages.getString("IMakerTabsViewer.3")); //$NON-NLS-1$

		tabPreferences.setToolTipText(Messages.getString("IMakerTabsViewer.4"));

		tabPreferences.setImage(getTabImage(1));

		tabSettings = new SettingsTab(tabFolder, SWT.NONE);

		tabSettings.setText(Messages.getString("IMakerTabsViewer.5")); //$NON-NLS-1$

		tabSettings.setToolTipText(Messages.getString("IMakerTabsViewer.6"));

		tabSettings.setImage(getTabImage(2));        

        tabDebug = new DebugTab(tabFolder, SWT.NONE, this, tabPreferences);

        tabDebug.setImage(getTabImage(3));        

        tabDebug.setText(Messages.getString("IMakerTabsViewer.7")); //$NON-NLS-1$

        tabDebug.setToolTipText(Messages.getString("IMakerTabsViewer.8"));

        tabPlatsim = new PlatsimTab(tabFolder, SWT.NONE);

        tabPlatsim.setImage(getTabImage(4));        

        tabPlatsim.setText(Messages.getString("IMakerTabsViewer.9")); //$NON-NLS-1$

        tabPlatsim.setToolTipText(Messages.getString("IMakerTabsViewer.10"));

        tabPreferences.setSettings(tabSettings);

        tabPreferences.setDebug(tabDebug);

        tabPreferences.setPlatsim(tabPlatsim);

	}

	private Image getTabImage(int tab) {

		ImageDescriptor descriptor = null;

		switch (tab) {

		case 1:

			descriptor = IMakerPlugin.getImageDescriptor("icons/preferences.gif");

			return descriptor.createImage();

		case 2:

			descriptor = IMakerPlugin.getImageDescriptor("icons/settings.gif"); //$NON-NLS-1$

			return descriptor.createImage();

		case 3:

			descriptor = IMakerPlugin.getImageDescriptor("icons/debug.gif"); //$NON-NLS-1$

			return descriptor.createImage();

		case 4:

			descriptor = IMakerPlugin.getImageDescriptor("icons/platsim.png"); //$NON-NLS-1$

			return descriptor.createImage();

		default:

			break;

		}

		return null;

	}

	public void update(Object selection) {

		if(selection!=null) {

			setNameField((ImakerProperties) selection);

			deleteButton.setEnabled(false);

		} else {

			fConfigWidget.setText("");

			deleteButton.setEnabled(false);

		}

	}

	private void setNameField(ImakerProperties prop) {

//		fConfigWidget.setText(prop.getFilename());

	}

	public String handleRunPressed() {

		String item = getSelectedItem();

		tabPreferences.runPressed(item);

		return item;

	}

	public String getSelectedItem() {

		int index = fConfigWidget.getSelectionIndex();

		return fConfigWidget.getItem(index);

	}

	public Button getFRevertButton() {

		return fRevertButton;

	}

}