org.mihalis.opal/src/main/java/org/mihalis/opal/notify/Notifier.java - osbp/org.eclipse.osbp.fork.mihalis.opal.imageSelector.osgi - Git at Google

 /*******************************************************************************
  * Copyright (c) 2011 Laurent CARON
  * 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:
  *     Laurent CARON (laurent.caron at gmail dot com) - initial API and implementation
  *******************************************************************************/
 package org.mihalis.opal.notify;

 import org.eclipse.swt.SWT;
 import org.eclipse.swt.custom.StyledText;
 import org.eclipse.swt.graphics.Color;
 import org.eclipse.swt.graphics.Font;
 import org.eclipse.swt.graphics.GC;
 import org.eclipse.swt.graphics.Image;
 import org.eclipse.swt.graphics.Rectangle;
 import org.eclipse.swt.layout.GridData;
 import org.eclipse.swt.layout.GridLayout;
 import org.eclipse.swt.widgets.Display;
 import org.eclipse.swt.widgets.Event;
 import org.eclipse.swt.widgets.Label;
 import org.eclipse.swt.widgets.Listener;
 import org.eclipse.swt.widgets.Shell;
 import org.mihalis.opal.notify.NotifierColorsFactory.NotifierTheme;
 import org.mihalis.opal.utils.SWTGraphicUtil;

 /**
  * This class provides a notifier window, which is a window that appears in the bottom of the screen and slides.
  */
 public class Notifier {

 	/** The Constant FONT_SIZE. */
 	private static final int FONT_SIZE = 10;

 	/** The Constant MAX_DURATION_FOR_OPENING. */
 	private static final int MAX_DURATION_FOR_OPENING = 500;

 	/** The Constant DISPLAY_TIME. */
 	private static final int DISPLAY_TIME = 4500;

 	/** The Constant FADE_TIMER. */
 	private static final int FADE_TIMER = 50;

 	/** The Constant FADE_OUT_STEP. */
 	private static final int FADE_OUT_STEP = 8;

 	/** The Constant STEP. */
 	private static final int STEP = 5;

 	/**
 	 * Starts a notification. A window will appear in the bottom of the screen, then will disappear after 4.5 s
 	 *
 	 * @param title the title of the popup window
 	 * @param text the text of the notification
 	 *
 	 */
 	public static void notify(final String title, final String text) {
 		notify(null, title, text, NotifierTheme.YELLOW_THEME);
 	}

 	/**
 	 * Starts a notification. A window will appear in the bottom of the screen, then will disappear after 4.5 s
 	 *
 	 * @param image the image to display (if <code>null</code>, a default image is displayed)
 	 * @param title the title of the popup window
 	 * @param text the text of the notification
 	 *
 	 */
 	public static void notify(final Image image, final String title, final String text) {
 		notify(image, title, text, NotifierTheme.YELLOW_THEME);

 	}

 	/**
 	 * Starts a notification. A window will appear in the bottom of the screen, then will disappear after 4.5 s
 	 *
 	 * @param title the title of the popup window
 	 * @param text the text of the notification
 	 * @param theme the graphical theme. If <code>null</code>, the yellow theme is used
 	 *
 	 * @see NotifierTheme
 	 */
 	public static void notify(final String title, final String text, final NotifierTheme theme) {
 		notify(null, title, text, theme);
 	}

 	/**
 	 * Starts a notification. A window will appear in the bottom of the screen, then will disappear after 4.5 s
 	 *
 	 * @param image the image to display (if <code>null</code>, a default image is displayed)
 	 * @param title the title of the popup window
 	 * @param text the text of the notification
 	 * @param theme the graphical theme. If <code>null</code>, the yellow theme is used
 	 *
 	 * @see NotifierTheme
 	 */
 	public static void notify(final Image image, final String title, final String text, final NotifierTheme theme) {
 		final Shell shell = createNotificationWindow(image, title, text, NotifierColorsFactory.getColorsForTheme(theme));
 		makeShellAppears(shell);
 	}

 	/**
 	 * Creates a notification window.
 	 *
 	 * @param image image. If <code>null</code>, a default image is used
 	 * @param title title, the title of the window
 	 * @param text text of the window
 	 * @param colors color set
 	 * @return the notification window as a shell object
 	 */
 	private static Shell createNotificationWindow(final Image image, final String title, final String text, final NotifierColors colors) {
 		final Shell shell = new Shell(SWT.NO_TRIM | SWT.NO_FOCUS | SWT.ON_TOP);
 		shell.setLayout(new GridLayout(2, false));
 		shell.setBackgroundMode(SWT.INHERIT_FORCE);

 		createTitle(shell, title, colors);
 		createImage(shell, image);
 		createText(shell, text, colors);
 		createBackground(shell, colors);
 		createCloseAction(shell);

 		shell.addListener(SWT.Dispose, new Listener() {

 			@Override
 			public void handleEvent(final Event event) {
 				colors.dispose();
 			}
 		});

 		shell.pack();
 		shell.setMinimumSize(320, 100);
 		return shell;
 	}

 	/**
 	 * Creates the title part of the window.
 	 *
 	 * @param shell the window
 	 * @param title the title
 	 * @param colors the color set
 	 */
 	private static void createTitle(final Shell shell, final String title, final NotifierColors colors) {
 		final Label titleLabel = new Label(shell, SWT.NONE);
 		final GridData gdLabel = new GridData(GridData.BEGINNING, GridData.BEGINNING, true, false, 2, 1);
 		gdLabel.horizontalIndent = 40;
 		titleLabel.setLayoutData(gdLabel);
 		final Color titleColor = colors.titleColor;
 		titleLabel.setForeground(titleColor);

 		final Font titleFont = SWTGraphicUtil.buildFontFrom(titleLabel, SWT.BOLD, FONT_SIZE);
 		titleLabel.setFont(titleFont);
 		titleLabel.setText(title);
 		SWTGraphicUtil.addDisposer(shell, titleFont);
 	}

 	/**
 	 * Creates the image part of the window.
 	 *
 	 * @param shell the window
 	 * @param image the image
 	 */
 	private static void createImage(final Shell shell, final Image image) {
 		final Label labelImage = new Label(shell, SWT.NONE);
 		final GridData gdImage = new GridData(GridData.CENTER, GridData.BEGINNING, false, true);
 		gdImage.horizontalIndent = 10;
 		labelImage.setLayoutData(gdImage);
 		if (image == null) {
 			final Image temp = SWTGraphicUtil.createImageFromFile("images/information.png");
 			labelImage.setImage(temp);
 			SWTGraphicUtil.addDisposer(shell, temp);
 		} else {
 			labelImage.setImage(image);
 		}

 	}

 	/**
 	 * Creates the text part of the window.
 	 *
 	 * @param shell the window
 	 * @param text the text
 	 * @param colors the color set
 	 */
 	private static void createText(final Shell shell, final String text, final NotifierColors colors) {
 		final StyledText textLabel = new StyledText(shell, SWT.WRAP | SWT.READ_ONLY);
 		final GridData gdText = new GridData(GridData.FILL, GridData.FILL, true, true);
 		gdText.horizontalIndent = 15;
 		textLabel.setLayoutData(gdText);
 		textLabel.setEnabled(false);
 		final Font textFont = SWTGraphicUtil.buildFontFrom(textLabel, SWT.NONE, 10);
 		textLabel.setFont(textFont);

 		final Color textColor = colors.textColor;
 		textLabel.setForeground(textColor);

 		textLabel.setText(text);
 		SWTGraphicUtil.applyHTMLFormating(textLabel);

 		SWTGraphicUtil.addDisposer(shell, textFont);
 	}

 	/**
 	 * Creates the background of the window.
 	 *
 	 * @param shell the window
 	 * @param colors the color set of the window
 	 */
 	private static void createBackground(final Shell shell, final NotifierColors colors) {
 		shell.addListener(SWT.Resize, new Listener() {

 			@Override
 			public void handleEvent(final Event event) {
 				final Rectangle rect = shell.getClientArea();
 				final Image newImage = new Image(Display.getDefault(), Math.max(1, rect.width), rect.height);
 				final GC gc = new GC(newImage);
 				gc.setAntialias(SWT.ON);

 				final Color borderColor = colors.borderColor;
 				final Color fillColor1 = colors.leftColor;
 				final Color fillColor2 = colors.rightColor;

 				gc.setBackground(borderColor);
 				gc.fillRoundRectangle(0, 0, rect.width, rect.height, 8, 8);

 				gc.setBackground(fillColor1);
 				gc.fillRoundRectangle(1, 1, rect.width - 2, rect.height - 2, 8, 8);

 				gc.setBackground(fillColor2);
 				gc.fillRoundRectangle(30, 1, rect.width - 32, rect.height - 2, 8, 8);
 				gc.fillRectangle(30, 1, 10, rect.height - 2);

 				final Image closeImage = SWTGraphicUtil.createImageFromFile("images/close.png");
 				gc.drawImage(closeImage, rect.width - 21, 13);

 				gc.dispose();
 				closeImage.dispose();

 				shell.setBackgroundImage(newImage);

 			}
 		});

 	}

 	/**
 	 * Make shell appears.
 	 *
 	 * @param shell shell that will appear
 	 */
 	private static void makeShellAppears(final Shell shell) {
 		if (shell == null || shell.isDisposed()) {
 			return;
 		}

 		final Rectangle clientArea = Display.getDefault().getPrimaryMonitor().getClientArea();
 		final int startX = clientArea.x + clientArea.width - shell.getSize().x;

 		final int stepForPosition = MAX_DURATION_FOR_OPENING / shell.getSize().y * STEP;
 		final int stepForAlpha = STEP * 255 / shell.getSize().y;

 		final int lastPosition = clientArea.y + clientArea.height - shell.getSize().y;

 		shell.setAlpha(0);
 		shell.setLocation(startX, clientArea.y + clientArea.height);
 		shell.open();

 		shell.getDisplay().timerExec(stepForPosition, new Runnable() {

 			@Override
 			public void run() {

 				if (shell == null || shell.isDisposed()) {
 					return;
 				}

 				shell.setLocation(startX, shell.getLocation().y - STEP);
 				shell.setAlpha(shell.getAlpha() + stepForAlpha);
 				if (shell.getLocation().y >= lastPosition) {
 					shell.getDisplay().timerExec(stepForPosition, this);
 				} else {
 					shell.setAlpha(255);
 					Display.getDefault().timerExec(DISPLAY_TIME, fadeOut(shell, false));
 				}
 			}
 		});

 	}

 	/**
 	 * Fade out.
 	 *
 	 * @param shell shell that will disappear
 	 * @param fast if true, the fading is much faster
 	 * @return a runnable
 	 */
 	private static Runnable fadeOut(final Shell shell, final boolean fast) {
 		return new Runnable() {

 			@Override
 			public void run() {
 				if (shell == null || shell.isDisposed()) {
 					return;
 				}

 				int currentAlpha = shell.getAlpha();
 				currentAlpha -= FADE_OUT_STEP * (fast ? 8 : 1);

 				if (currentAlpha <= 0) {
 					shell.setAlpha(0);
 					shell.dispose();
 					return;
 				}

 				shell.setAlpha(currentAlpha);

 				Display.getDefault().timerExec(FADE_TIMER, this);

 			}

 		};
 	}

 	/**
 	 * Add a listener to the shell in order to handle the clicks on the close
 	 * button.
 	 *
 	 * @param shell associated shell
 	 */
 	private static void createCloseAction(final Shell shell) {
 		shell.addListener(SWT.MouseUp, new Listener() {

 			@Override
 			public void handleEvent(final Event event) {
 				final Rectangle rect = shell.getClientArea();
 				final int xUpperLeftCorner = rect.width - 21;
 				final int yUpperLeftCorner = 13;

 				if (event.x >= xUpperLeftCorner && event.x <= xUpperLeftCorner + 8 && event.y >= yUpperLeftCorner && event.y <= yUpperLeftCorner + 8) {
 					Display.getDefault().timerExec(0, fadeOut(shell, true));
 				}

 			}
 		});

 	}

 }
	/*******************************************************************************
	* Copyright (c) 2011 Laurent CARON
	* 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:
	* Laurent CARON (laurent.caron at gmail dot com) - initial API and implementation
	*******************************************************************************/
	package org.mihalis.opal.notify;

	import org.eclipse.swt.SWT;
	import org.eclipse.swt.custom.StyledText;
	import org.eclipse.swt.graphics.Color;
	import org.eclipse.swt.graphics.Font;
	import org.eclipse.swt.graphics.GC;
	import org.eclipse.swt.graphics.Image;
	import org.eclipse.swt.graphics.Rectangle;
	import org.eclipse.swt.layout.GridData;
	import org.eclipse.swt.layout.GridLayout;
	import org.eclipse.swt.widgets.Display;
	import org.eclipse.swt.widgets.Event;
	import org.eclipse.swt.widgets.Label;
	import org.eclipse.swt.widgets.Listener;
	import org.eclipse.swt.widgets.Shell;
	import org.mihalis.opal.notify.NotifierColorsFactory.NotifierTheme;
	import org.mihalis.opal.utils.SWTGraphicUtil;

	/**
	* This class provides a notifier window, which is a window that appears in the bottom of the screen and slides.
	*/
	public class Notifier {

	/** The Constant FONT_SIZE. */
	private static final int FONT_SIZE = 10;

	/** The Constant MAX_DURATION_FOR_OPENING. */
	private static final int MAX_DURATION_FOR_OPENING = 500;

	/** The Constant DISPLAY_TIME. */
	private static final int DISPLAY_TIME = 4500;

	/** The Constant FADE_TIMER. */
	private static final int FADE_TIMER = 50;

	/** The Constant FADE_OUT_STEP. */
	private static final int FADE_OUT_STEP = 8;

	/** The Constant STEP. */
	private static final int STEP = 5;

	/**
	* Starts a notification. A window will appear in the bottom of the screen, then will disappear after 4.5 s
	*
	* @param title the title of the popup window
	* @param text the text of the notification
	*
	*/
	public static void notify(final String title, final String text) {
	notify(null, title, text, NotifierTheme.YELLOW_THEME);
	}

	/**
	* Starts a notification. A window will appear in the bottom of the screen, then will disappear after 4.5 s
	*
	* @param image the image to display (if <code>null</code>, a default image is displayed)
	* @param title the title of the popup window
	* @param text the text of the notification
	*
	*/
	public static void notify(final Image image, final String title, final String text) {
	notify(image, title, text, NotifierTheme.YELLOW_THEME);

	}

	/**
	* Starts a notification. A window will appear in the bottom of the screen, then will disappear after 4.5 s
	*
	* @param title the title of the popup window
	* @param text the text of the notification
	* @param theme the graphical theme. If <code>null</code>, the yellow theme is used
	*
	* @see NotifierTheme
	*/
	public static void notify(final String title, final String text, final NotifierTheme theme) {
	notify(null, title, text, theme);
	}

	/**
	* Starts a notification. A window will appear in the bottom of the screen, then will disappear after 4.5 s
	*
	* @param image the image to display (if <code>null</code>, a default image is displayed)
	* @param title the title of the popup window
	* @param text the text of the notification
	* @param theme the graphical theme. If <code>null</code>, the yellow theme is used
	*
	* @see NotifierTheme
	*/
	public static void notify(final Image image, final String title, final String text, final NotifierTheme theme) {
	final Shell shell = createNotificationWindow(image, title, text, NotifierColorsFactory.getColorsForTheme(theme));
	makeShellAppears(shell);
	}

	/**
	* Creates a notification window.
	*
	* @param image image. If <code>null</code>, a default image is used
	* @param title title, the title of the window
	* @param text text of the window
	* @param colors color set
	* @return the notification window as a shell object
	*/
	private static Shell createNotificationWindow(final Image image, final String title, final String text, final NotifierColors colors) {
	final Shell shell = new Shell(SWT.NO_TRIM \| SWT.NO_FOCUS \| SWT.ON_TOP);
	shell.setLayout(new GridLayout(2, false));
	shell.setBackgroundMode(SWT.INHERIT_FORCE);

	createTitle(shell, title, colors);
	createImage(shell, image);
	createText(shell, text, colors);
	createBackground(shell, colors);
	createCloseAction(shell);

	shell.addListener(SWT.Dispose, new Listener() {

	@Override
	public void handleEvent(final Event event) {
	colors.dispose();
	}
	});

	shell.pack();
	shell.setMinimumSize(320, 100);
	return shell;
	}

	/**
	* Creates the title part of the window.
	*
	* @param shell the window
	* @param title the title
	* @param colors the color set
	*/
	private static void createTitle(final Shell shell, final String title, final NotifierColors colors) {
	final Label titleLabel = new Label(shell, SWT.NONE);
	final GridData gdLabel = new GridData(GridData.BEGINNING, GridData.BEGINNING, true, false, 2, 1);
	gdLabel.horizontalIndent = 40;
	titleLabel.setLayoutData(gdLabel);
	final Color titleColor = colors.titleColor;
	titleLabel.setForeground(titleColor);

	final Font titleFont = SWTGraphicUtil.buildFontFrom(titleLabel, SWT.BOLD, FONT_SIZE);
	titleLabel.setFont(titleFont);
	titleLabel.setText(title);
	SWTGraphicUtil.addDisposer(shell, titleFont);
	}

	/**
	* Creates the image part of the window.
	*
	* @param shell the window
	* @param image the image
	*/
	private static void createImage(final Shell shell, final Image image) {
	final Label labelImage = new Label(shell, SWT.NONE);
	final GridData gdImage = new GridData(GridData.CENTER, GridData.BEGINNING, false, true);
	gdImage.horizontalIndent = 10;
	labelImage.setLayoutData(gdImage);
	if (image == null) {
	final Image temp = SWTGraphicUtil.createImageFromFile("images/information.png");
	labelImage.setImage(temp);
	SWTGraphicUtil.addDisposer(shell, temp);
	} else {
	labelImage.setImage(image);
	}

	}

	/**
	* Creates the text part of the window.
	*
	* @param shell the window
	* @param text the text
	* @param colors the color set
	*/
	private static void createText(final Shell shell, final String text, final NotifierColors colors) {
	final StyledText textLabel = new StyledText(shell, SWT.WRAP \| SWT.READ_ONLY);
	final GridData gdText = new GridData(GridData.FILL, GridData.FILL, true, true);
	gdText.horizontalIndent = 15;
	textLabel.setLayoutData(gdText);
	textLabel.setEnabled(false);
	final Font textFont = SWTGraphicUtil.buildFontFrom(textLabel, SWT.NONE, 10);
	textLabel.setFont(textFont);

	final Color textColor = colors.textColor;
	textLabel.setForeground(textColor);

	textLabel.setText(text);
	SWTGraphicUtil.applyHTMLFormating(textLabel);

	SWTGraphicUtil.addDisposer(shell, textFont);
	}

	/**
	* Creates the background of the window.
	*
	* @param shell the window
	* @param colors the color set of the window
	*/
	private static void createBackground(final Shell shell, final NotifierColors colors) {
	shell.addListener(SWT.Resize, new Listener() {

	@Override
	public void handleEvent(final Event event) {
	final Rectangle rect = shell.getClientArea();
	final Image newImage = new Image(Display.getDefault(), Math.max(1, rect.width), rect.height);
	final GC gc = new GC(newImage);
	gc.setAntialias(SWT.ON);

	final Color borderColor = colors.borderColor;
	final Color fillColor1 = colors.leftColor;
	final Color fillColor2 = colors.rightColor;

	gc.setBackground(borderColor);
	gc.fillRoundRectangle(0, 0, rect.width, rect.height, 8, 8);

	gc.setBackground(fillColor1);
	gc.fillRoundRectangle(1, 1, rect.width - 2, rect.height - 2, 8, 8);

	gc.setBackground(fillColor2);
	gc.fillRoundRectangle(30, 1, rect.width - 32, rect.height - 2, 8, 8);
	gc.fillRectangle(30, 1, 10, rect.height - 2);

	final Image closeImage = SWTGraphicUtil.createImageFromFile("images/close.png");
	gc.drawImage(closeImage, rect.width - 21, 13);

	gc.dispose();
	closeImage.dispose();

	shell.setBackgroundImage(newImage);

	}
	});

	}

	/**
	* Make shell appears.
	*
	* @param shell shell that will appear
	*/
	private static void makeShellAppears(final Shell shell) {
	if (shell == null \|\| shell.isDisposed()) {
	return;
	}

	final Rectangle clientArea = Display.getDefault().getPrimaryMonitor().getClientArea();
	final int startX = clientArea.x + clientArea.width - shell.getSize().x;

	final int stepForPosition = MAX_DURATION_FOR_OPENING / shell.getSize().y * STEP;
	final int stepForAlpha = STEP * 255 / shell.getSize().y;

	final int lastPosition = clientArea.y + clientArea.height - shell.getSize().y;

	shell.setAlpha(0);
	shell.setLocation(startX, clientArea.y + clientArea.height);
	shell.open();

	shell.getDisplay().timerExec(stepForPosition, new Runnable() {

	@Override
	public void run() {

	if (shell == null \|\| shell.isDisposed()) {
	return;
	}

	shell.setLocation(startX, shell.getLocation().y - STEP);
	shell.setAlpha(shell.getAlpha() + stepForAlpha);
	if (shell.getLocation().y >= lastPosition) {
	shell.getDisplay().timerExec(stepForPosition, this);
	} else {
	shell.setAlpha(255);
	Display.getDefault().timerExec(DISPLAY_TIME, fadeOut(shell, false));
	}
	}
	});

	}

	/**
	* Fade out.
	*
	* @param shell shell that will disappear
	* @param fast if true, the fading is much faster
	* @return a runnable
	*/
	private static Runnable fadeOut(final Shell shell, final boolean fast) {
	return new Runnable() {

	@Override
	public void run() {
	if (shell == null \|\| shell.isDisposed()) {
	return;
	}

	int currentAlpha = shell.getAlpha();
	currentAlpha -= FADE_OUT_STEP * (fast ? 8 : 1);

	if (currentAlpha <= 0) {
	shell.setAlpha(0);
	shell.dispose();
	return;
	}

	shell.setAlpha(currentAlpha);

	Display.getDefault().timerExec(FADE_TIMER, this);

	}

	};
	}

	/**
	* Add a listener to the shell in order to handle the clicks on the close
	* button.
	*
	* @param shell associated shell
	*/
	private static void createCloseAction(final Shell shell) {
	shell.addListener(SWT.MouseUp, new Listener() {

	@Override
	public void handleEvent(final Event event) {
	final Rectangle rect = shell.getClientArea();
	final int xUpperLeftCorner = rect.width - 21;
	final int yUpperLeftCorner = 13;

	if (event.x >= xUpperLeftCorner && event.x <= xUpperLeftCorner + 8 && event.y >= yUpperLeftCorner && event.y <= yUpperLeftCorner + 8) {
	Display.getDefault().timerExec(0, fadeOut(shell, true));
	}

	}
	});

	}

	}