messageslideshell.java

这是一个基于java编写的torrent的P2P源码

/*
 * Created on Mar 7, 2006 10:42:32 PM
 * Copyright (C) 2006 Aelitis, All Rights Reserved.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * AELITIS, SAS au capital de 46,603.30 euros
 * 8 Allee Lenotre, La Grille Royale, 78600 Le Mesnil le Roi, France.
 */
package org.gudy.azureus2.ui.swt.shells;

import java.util.ArrayList;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.StyledText;
import org.eclipse.swt.events.*;
import org.eclipse.swt.graphics.*;
import org.eclipse.swt.layout.*;
import org.eclipse.swt.program.Program;
import org.eclipse.swt.widgets.*;

import org.gudy.azureus2.core3.config.COConfigurationManager;
import org.gudy.azureus2.core3.internat.MessageText;
import org.gudy.azureus2.core3.logging.LogEvent;
import org.gudy.azureus2.core3.logging.LogIDs;
import org.gudy.azureus2.core3.logging.Logger;
import org.gudy.azureus2.core3.util.*;
import org.gudy.azureus2.ui.swt.ImageRepository;
import org.gudy.azureus2.ui.swt.Messages;
import org.gudy.azureus2.ui.swt.Utils;
import org.gudy.azureus2.ui.swt.mainwindow.TorrentOpener;

import com.aelitis.azureus.ui.swt.UIFunctionsManagerSWT;
import com.aelitis.azureus.ui.swt.UIFunctionsSWT;

/**
 * 
 * +=====================================+
 * | +----+                              |
 * | |Icon| Big Bold Title               |
 * | +----+                              |
 * | Wrapping message text               |
 * | with optional URL links             |
 * | +-----+                             |
 * | |BGImg|           XX more slideys.. |
 * | | Icon|          Closing in XX secs |
 * | +-----+  [HideAll] [Details] [Hide] |
 * +=====================================+ 
 * 
 * @author TuxPaper
 * @created Mar 7, 2006
 *
 */
public class MessageSlideShell {
	private static boolean USE_SWT32_BG_SET = true;

	private static final boolean DEBUG = false;

	private final static String REGEX_URLHTML = "<A HREF=\"(.+?)\">(.+?)</A>";

	/** Slide until there's this much gap between shell and edge of screen */
	private final static int EDGE_GAP = 0;

	/** Width used when BG image can't be loaded */
	private final static int SHELL_DEF_WIDTH = 280;

	/** Standard height of the shell.  Shell may grow depending on text */
	private final static int SHELL_MIN_HEIGHT = 150;

	/** Maximimum height of popup.  If text is too long, the full text will be
	 * put into details.
	 */
	private final static int SHELL_MAX_HEIGHT = 330;

	/** Width of the details shell */
	private final static int DETAILS_WIDTH = 550;

	/** Height of the details shell */
	private final static int DETAILS_HEIGHT = 180;

	/** Synchronization for popupList */
	private final static AEMonitor monitor = new AEMonitor("slidey_mon");

	/** List of all popups ever created */
	private static ArrayList historyList = new ArrayList();

	/** Current popup being displayed */
	private static int currentPopupIndex = -1;

	/** Shell for popup */
	private Shell shell;

	/** Composite in shell */
	private Composite cShell;

	/** popup could and closing in xx seconds label */
	private Label lblCloseIn;

	/** Button that hides all slideys in the popupList.  Visible only when there's
	 * more than 1 slidey
	 */
	private Button btnHideAll;

	/** Button to move to next message.  Text changes from "Hide" to "Next"
	 * appropriately.
	 */
	private Button btnNext;

	/** paused state of auto-close delay */
	private boolean bDelayPaused = false;
	
	/** List of SWT objects needing disposal */
	private ArrayList disposeList = new ArrayList();

	/** Text to put into details popup */
	private String sDetails;

	/** Position this popup is in the history list */
	private int idxHistory;

	/** Open a popup using resource keys for title/text
	 * 
	 * @param display Display to create the shell on
	 * @param iconID SWT.ICON_* constant for icon in top left
	 * @param keyPrefix message bundle key prefix used to get title and text.  
	 *         Title will be keyPrefix + ".title", and text will be set to
	 *         keyPrefix + ".text"
	 * @param details actual text for details (not a key)
	 * @param textParams any parameters for text
	 * 
	 * @note Display moved to end to remove conflict in constructors
	 */
	public MessageSlideShell(Display display, int iconID, String keyPrefix,
			String details, String[] textParams) {
		this(display, iconID, MessageText.getString(keyPrefix + ".title"),
				MessageText.getString(keyPrefix + ".text", textParams), details);
	}

	/**
	 * Open Mr Slidey
	 * 
	 * @param display Display to create the shell on
	 * @param iconID SWT.ICON_* constant for icon in top left
	 * @param title Text to put in the title
	 * @param text Text to put in the body
	 * @param details Text displayed when the Details button is pressed.  Null
	 *                 for disabled Details button.
	 */
	public MessageSlideShell(Display display, int iconID, String title,
			String text, String details) {
		try {
			monitor.enter();

			PopupParams popupParams = new PopupParams(iconID, title, text, details);
			historyList.add(popupParams);
			if (currentPopupIndex < 0) {
				create(display, popupParams, true);
			}
		} catch (Exception e) {
			Logger.log(new LogEvent(LogIDs.GUI, "Mr. Slidey Init", e));
			disposeShell(shell);
			Utils.disposeSWTObjects(disposeList);
		} finally {
			monitor.exit();
		}
	}

	private MessageSlideShell(Display display, PopupParams popupParams,
			boolean bSlide) {
		create(display, popupParams, bSlide);
	}

	private void create(final Display display, final PopupParams popupParams,
			boolean bSlide) {
		GridData gridData;
		int shellWidth;
		int style = SWT.ON_TOP;

		boolean bDisableSliding = COConfigurationManager.getBooleanParameter("GUI_SWT_DisableAlertSliding");
		if (bDisableSliding) {
			bSlide = false;
			style = SWT.NONE;
		}

		if (DEBUG)
			System.out.println("create " + (bSlide ? "SlideIn" : "") + ";"
					+ historyList.indexOf(popupParams) + ";");

		idxHistory = historyList.indexOf(popupParams);

		// 2 Assertions
		if (idxHistory < 0) {
			System.err.println("Not in popup history list");
			return;
		}

		if (currentPopupIndex == idxHistory) {
			System.err.println("Trying to open already opened!! " + idxHistory);
			return;
		}

		try {
			monitor.enter();
			currentPopupIndex = idxHistory;
		} finally {
			monitor.exit();
		}

		if (DEBUG)
			System.out.println("set currIdx = " + idxHistory);

		sDetails = popupParams.details;

		// Load Images
		// Disable BG Image on OSX
		Image imgPopup;
		if (Constants.isOSX && (SWT.getVersion() < 3221 || !USE_SWT32_BG_SET)) {
			USE_SWT32_BG_SET = false;
			imgPopup = null;
		} else {
			imgPopup = ImageRepository.getImage("popup");
		}
		Rectangle imgPopupBounds;
		if (imgPopup != null) {
			shellWidth = imgPopup.getBounds().width;
			imgPopupBounds = imgPopup.getBounds();
		} else {
			shellWidth = SHELL_DEF_WIDTH;
			imgPopupBounds = null;
		}
		Image imgIcon = null;
		switch (popupParams.iconID) {
			case SWT.ICON_ERROR:
				imgIcon = ImageRepository.getImage("error");
				break;

			case SWT.ICON_WARNING:
				imgIcon = ImageRepository.getImage("warning");
				break;

			case SWT.ICON_INFORMATION:
				imgIcon = ImageRepository.getImage("info");
				break;

			default:
				imgIcon = null;
				break;
		}
		
		// if there's a link, or the info is non-information,
		// disable timer and mouse watching
		bDelayPaused = UrlUtils.parseHTMLforURL(popupParams.text) != null
				|| popupParams.iconID != SWT.ICON_INFORMATION || !bSlide;
		// Pause the auto-close delay when mouse is over slidey
		// This will be applies to every control
		final MouseTrackAdapter mouseAdapter = bDelayPaused ? null
				: new MouseTrackAdapter() {
					public void mouseEnter(MouseEvent e) {
						bDelayPaused = true;
					}

					public void mouseExit(MouseEvent e) {
						bDelayPaused = false;
					}
				};

		// Create shell & widgets
		if (bDisableSliding) {
			UIFunctionsSWT uiFunctions = UIFunctionsManagerSWT.getUIFunctionsSWT();
			if (uiFunctions != null) {
				Shell mainShell = uiFunctions.getMainShell();
				if (mainShell != null) {
					shell = new Shell(mainShell, style);
				}
			}
		}
		if (shell == null) {
			shell = new Shell(display, style);
		}
		if (USE_SWT32_BG_SET) {
			try {
				shell.setBackgroundMode(SWT.INHERIT_DEFAULT);
			} catch (NoSuchMethodError e) {
				// Ignore
			} catch (NoSuchFieldError e2) {
				// ignore
			}
		}
		Utils.setShellIcon(shell);
		shell.setText(popupParams.title);

		FormLayout shellLayout = new FormLayout();
		shell.setLayout(shellLayout);

		cShell = new Composite(shell, SWT.NULL);
		GridLayout layout = new GridLayout(3, false);
		cShell.setLayout(layout);

		FormData formData = new FormData();
		formData.left = new FormAttachment(0, 0);
		formData.right = new FormAttachment(100, 0);
		cShell.setLayoutData(formData);

		Label lblIcon = new Label(cShell, SWT.NONE);
		lblIcon.setImage(imgIcon);
		lblIcon.setLayoutData(new GridData());

		Label lblTitle = new Label(cShell, SWT.getVersion() < 3100 ? SWT.NONE
				: SWT.WRAP);
		gridData = new GridData(GridData.FILL_HORIZONTAL);
		if (SWT.getVersion() < 3100)
			gridData.widthHint = 140;
		lblTitle.setLayoutData(gridData);
		lblTitle.setForeground(display.getSystemColor(SWT.COLOR_BLACK));
		lblTitle.setText(popupParams.title);
		FontData[] fontData = lblTitle.getFont().getFontData();
		fontData[0].setStyle(SWT.BOLD);
		fontData[0].setHeight((int) (fontData[0].getHeight() * 1.5));
		Font boldFont = new Font(display, fontData);
		disposeList.add(boldFont);
		lblTitle.setFont(boldFont);

		final Button btnDetails = new Button(cShell, SWT.TOGGLE);
		btnDetails.setForeground(display.getSystemColor(SWT.COLOR_BLACK));
		Messages.setLanguageText(btnDetails, "popup.error.details");
		gridData = new GridData();
		btnDetails.setLayoutData(gridData);
		btnDetails.addListener(SWT.MouseUp, new Listener() {
			public void handleEvent(Event arg0) {
				try {
					boolean bShow = btnDetails.getSelection();
					if (bShow) {
						Shell detailsShell = new Shell(display, SWT.BORDER | SWT.ON_TOP);
						Utils.setShellIcon(detailsShell);
						detailsShell.setLayout(new FillLayout());
						StyledText textDetails = new StyledText(detailsShell, SWT.READ_ONLY
								| SWT.V_SCROLL | SWT.H_SCROLL | SWT.BORDER);
						textDetails.setBackground(display.getSystemColor(SWT.COLOR_LIST_BACKGROUND));
						textDetails.setForeground(display.getSystemColor(SWT.COLOR_LIST_FOREGROUND));
						textDetails.setWordWrap(true);
						textDetails.setText(sDetails);
						detailsShell.layout();
						Rectangle shellBounds = shell.getBounds();
						detailsShell.setBounds(shellBounds.x + shellBounds.width
								- DETAILS_WIDTH, shellBounds.y - DETAILS_HEIGHT, DETAILS_WIDTH,
								DETAILS_HEIGHT);
						detailsShell.open();
						shell.setData("detailsShell", detailsShell);
						shell.addDisposeListener(new DisposeListener() {
							public void widgetDisposed(DisposeEvent e) {
								Shell detailsShell = (Shell) shell.getData("detailsShell");
								if (detailsShell != null && !detailsShell.isDisposed()) {
									detailsShell.dispose();
								}
							}
						});

						// disable auto-close on opening of details
						bDelayPaused = true;
						removeMouseTrackListener(shell, mouseAdapter);
					} else {
						Shell detailsShell = (Shell) shell.getData("detailsShell");
						if (detailsShell != null && !detailsShell.isDisposed()) {
							detailsShell.dispose();
						}
					}
				} catch (Exception e) {
					Logger.log(new LogEvent(LogIDs.GUI, "Mr. Slidey DetailsButton", e));
				}
			}
		});

		try {
			Link linkLabel = new Link(cShell, SWT.WRAP);
			gridData = new GridData(GridData.FILL_BOTH);
			gridData.horizontalSpan = 3;
			linkLabel.setLayoutData(gridData);
			linkLabel.setForeground(display.getSystemColor(SWT.COLOR_BLACK));
			linkLabel.setText(popupParams.text);
			linkLabel.addSelectionListener(new SelectionAdapter() {
				public void widgetSelected(SelectionEvent e) {
					if (e.text.endsWith(".torrent"))
						TorrentOpener.openTorrent(e.text);
					else
						Utils.launch(e.text);
				}
			});

			Matcher matcher = Pattern
					.compile(REGEX_URLHTML, Pattern.CASE_INSENSITIVE).matcher(
							popupParams.text);
			String tooltip = null;
			while (matcher.find()) {
				if (tooltip == null)
					tooltip = "";
				else
					tooltip += "\n";
				tooltip += matcher.group(2) + ": " + matcher.group(1);
			}
			linkLabel.setToolTipText(tooltip);