/*

 * 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 the License "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.carbide.cpp.internal.pi.button.ui;

import org.eclipse.jface.dialogs.IDialogConstants;

import org.eclipse.jface.dialogs.TrayDialog;

import org.eclipse.jface.layout.GridDataFactory;

import org.eclipse.jface.layout.GridLayoutFactory;

import org.eclipse.swt.SWT;

import org.eclipse.swt.events.FocusAdapter;

import org.eclipse.swt.events.FocusEvent;

import org.eclipse.swt.events.ModifyEvent;

import org.eclipse.swt.events.ModifyListener;

import org.eclipse.swt.events.SelectionAdapter;

import org.eclipse.swt.events.SelectionEvent;

import org.eclipse.swt.widgets.Composite;

import org.eclipse.swt.widgets.Control;

import org.eclipse.swt.widgets.Label;

import org.eclipse.swt.widgets.Shell;

import org.eclipse.swt.widgets.Text;

import org.eclipse.ui.PlatformUI;

import com.nokia.carbide.cpp.pi.button.ComNokiaCarbidePiButtonHelpIDs;

import com.nokia.carbide.cpp.pi.editors.PIPageEditor;

public class BupMapAddDialog extends TrayDialog {

	private int			oldEventKeyCode;

	private String		oldEventEnumString;

	private String		oldEventLabel;

	private int			eventKeyCode;

	private String		eventEnumString;

	private String		eventLabel;

	private ModifyCachedBupEventMap map;

	// control

	private Composite composite = null;

	private Composite labelAndValueComposite = null;

	private Label keyCodeLabel = null;

	private Text keyCodeValueText = null;

	private Label enumLabel = null;

	private Text enumValueText = null;

	private Label labelLabel = null;

	private Text labelText = null;

	private Label messageLabel = null;

	private Label hexNeeds0x = null;

	public BupMapAddDialog(Shell shell, ModifyCachedBupEventMap cachedMap, int keyCode, String enumString, String label) {

		super(shell);

		// store original values

		oldEventKeyCode = eventKeyCode = keyCode;

		oldEventEnumString = eventEnumString = enumString;

		oldEventLabel = eventLabel = label;

		map = cachedMap;

	}

	public Control createDialogArea(Composite parent) {

		getShell().setText(Messages.getString("BupMapAddDialog.addMapping"));  //$NON-NLS-1$

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

		GridDataFactory.fillDefaults().applyTo(composite);

		GridLayoutFactory.fillDefaults().margins(5, 5).applyTo(composite);

		PlatformUI.getWorkbench().getHelpSystem().setHelp(composite, ComNokiaCarbidePiButtonHelpIDs.PI_BUTTON_ADD_DIALOG);

		labelAndValueComposite = new Composite(composite, SWT.NONE);

		GridDataFactory.fillDefaults().applyTo(labelAndValueComposite);

		GridLayoutFactory.fillDefaults().numColumns(2).applyTo(labelAndValueComposite);

		messageLabel = new Label(composite, SWT.NONE);

		GridDataFactory.fillDefaults().indent(15,0).grab(true, true).hint(200, 15).applyTo(messageLabel);

		messageLabel.setFont(PIPageEditor.helvetica_9);

		hexNeeds0x = new Label(composite, SWT.NONE);

		GridDataFactory.fillDefaults().indent(15,0).grab(true, true).hint(200, 15).applyTo(hexNeeds0x);

		hexNeeds0x.setText(Messages.getString("BupMapAddDialog.startHexWith0x")); //$NON-NLS-1$

		hexNeeds0x.setFont(PIPageEditor.helvetica_9);

		keyCodeLabel = new Label(labelAndValueComposite, SWT.NONE);

		GridDataFactory.fillDefaults().grab(true, false).applyTo(keyCodeLabel);

		keyCodeLabel.setFont(PIPageEditor.helvetica_9);

		keyCodeLabel.setText(Messages.getString("BupMapAddDialog.value")); //$NON-NLS-1$

		keyCodeValueText = new Text(labelAndValueComposite, SWT.BORDER);

		GridDataFactory.fillDefaults().grab(true, true).hint(200, 15).applyTo(keyCodeValueText);

		keyCodeValueText.setFont(PIPageEditor.helvetica_9);

		keyCodeValueText.setText(""); //$NON-NLS-1$

		// add the listener(s)

		keyCodeValueText.addModifyListener(new ModifyListener(){

			public void modifyText(ModifyEvent arg0) {

				validateKeyCode();

			}

		});

		enumLabel = new Label(labelAndValueComposite, SWT.NONE);

		GridDataFactory.fillDefaults().grab(true, false).applyTo(enumLabel);

		enumLabel.setFont(PIPageEditor.helvetica_9);

		enumLabel.setText(Messages.getString("BupMapAddDialog.tKeyCode")); //$NON-NLS-1$

		enumValueText = new Text(labelAndValueComposite, SWT.BORDER);

		enumValueText.setFont(PIPageEditor.helvetica_9);

		GridDataFactory.fillDefaults().grab(true, true).hint(200, 15).applyTo(enumValueText);

		// add the listener(s)

		enumValueText.addSelectionListener(new SelectionAdapter() {

			public void widgetSelected(SelectionEvent e) {

				eventEnumString = enumValueText.getText();

			}

		});

		enumValueText.addFocusListener(new FocusAdapter() {

			public void focusLost(FocusEvent e) {

				eventEnumString = enumValueText.getText();

			}

		});

		enumValueText.setText(eventEnumString);

		labelLabel = new Label(labelAndValueComposite, SWT.NONE);

		GridDataFactory.fillDefaults().grab(true, false).applyTo(labelLabel);

		labelLabel.setFont(PIPageEditor.helvetica_9);

		labelLabel.setText(Messages.getString("BupMapAddDialog.label")); //$NON-NLS-1$

		labelText = new Text(labelAndValueComposite, SWT.BORDER);

		GridDataFactory.fillDefaults().grab(true, true).hint(200, 15).applyTo(labelText);

		labelText.setFont(PIPageEditor.helvetica_9);

		// add the listener(s)

		labelText.addSelectionListener(new SelectionAdapter() {

			public void widgetSelected(SelectionEvent e) {

				eventLabel = labelText.getText();

			}

		});

		labelText.addFocusListener(new FocusAdapter() {

			public void focusLost(FocusEvent e) {

				eventLabel = labelText.getText();

			}

		});

		labelText.setText(eventLabel);

		return composite;

	}

	/**

	 * 

	 */

	protected void validateKeyCode() {

		int keyCode = -1;

		String message = ""; //$NON-NLS-1$

		String keyCodeString = keyCodeValueText.getText();

		messageLabel.setForeground(getShell().getDisplay().getSystemColor(SWT.COLOR_BLACK));

		if (keyCodeString.length() == 0)

			message = " "; //$NON-NLS-1$

		else {

			try {

				keyCode = Integer.parseInt(keyCodeString);

			} catch (NumberFormatException e) {

				try {

					if (keyCodeString.startsWith("0x")) { //$NON-NLS-1$

						keyCode = Integer.parseInt(keyCodeString.substring(2), 16);

					} else {

						Integer.parseInt(keyCodeString, 16);

						message = Messages.getString("BupMapAddDialog.hexNeeds0x") + keyCodeValueText.getText(); //$NON-NLS-1$

						messageLabel.setForeground(getShell().getDisplay().getSystemColor(SWT.COLOR_RED));

					}

				} catch (NumberFormatException e2) {

					message = keyCodeValueText.getText() + Messages.getString("BupMapAddDialog.invalidNumber"); //$NON-NLS-1$

					messageLabel.setForeground(getShell().getDisplay().getSystemColor(SWT.COLOR_RED));

				}

			}

			if (keyCode >= 0) {

				eventKeyCode = keyCode;

				if (map.getKeyCodeSet().contains(keyCode)) {

					message = keyCode + Messages.getString("BupMapAddDialog.existsInMap1") //$NON-NLS-1$

							+ Integer.toHexString(keyCode) + Messages.getString("BupMapAddDialog.existsInMap2"); //$NON-NLS-1$

					messageLabel.setForeground(getShell().getDisplay().getSystemColor(SWT.COLOR_RED));

				}

			}

		}

		messageLabel.setText(message);

		messageLabel.setVisible(!message.equals("")); //$NON-NLS-1$

		getButton(IDialogConstants.OK_ID).setEnabled(message.equals("")); //$NON-NLS-1$

	}

	public int getKeyCode() {

		return eventKeyCode;

	}

	public String getEnumString() {

		if (eventEnumString == null) {

			return ""; //$NON-NLS-1$

		}

		return eventEnumString;

	}

	public String getLabel() {

		if (eventLabel == null) {

			return ""; //$NON-NLS-1$

		}

		return eventLabel;

	}

	protected void okPressed() {

		super.okPressed();

	}

	protected void cancelPressed() {

		eventKeyCode = oldEventKeyCode;

		eventEnumString = oldEventEnumString;

		eventLabel = oldEventLabel;

		super.cancelPressed();

	}

	protected void createButtonsForButtonBar(Composite parent) {

		super.createButtonsForButtonBar(parent);

		// now buttons are there, we can  disable key

		getButton(IDialogConstants.OK_ID).setEnabled(false);

	}

}