Coverage report

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com.bonevich.eclipse.cvsgrapher.editors.CvsGraphEditor$CvsGraphViewerKeyHandler
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 1   
 /* ====================================================================
 2   
  * The Apache Software License, Version 1.1
 3   
  *
 4   
  * Copyright (c) 2000 The Apache Software Foundation.  All rights
 5   
  * reserved.
 6   
  *
 7   
  * Redistribution and use in source and binary forms, with or without
 8   
  * modification, are permitted provided that the following conditions
 9   
  * are met:
 10   
  *
 11   
  * 1. Redistributions of source code must retain the above copyright
 12   
  *    notice, this list of conditions and the following disclaimer.
 13   
  *
 14   
  * 2. Redistributions in binary form must reproduce the above copyright
 15   
  *    notice, this list of conditions and the following disclaimer in
 16   
  *    the documentation and/or other materials provided with the
 17   
  *    distribution.
 18   
  *
 19   
  * 3. The end-user documentation included with the redistribution,
 20   
  *    if any, must include the following acknowledgment:
 21   
  *       "This product includes software developed by the
 22   
  *        Apache Software Foundation (http://www.apache.org/)."
 23   
  *    Alternately, this acknowledgment may appear in the software itself,
 24   
  *    if and wherever such third-party acknowledgments normally appear.
 25   
  *
 26   
  * 4. The names "Apache" and "Apache Software Foundation" must
 27   
  *    not be used to endorse or promote products derived from this
 28   
  *    software without prior written permission. For written
 29   
  *    permission, please contact apache@apache.org.
 30   
  *
 31   
  * 5. Products derived from this software may not be called "Apache",
 32   
  *    nor may "Apache" appear in their name, without prior written
 33   
  *    permission of the Apache Software Foundation.
 34   
  *
 35   
  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 36   
  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 37   
  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 38   
  * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
 39   
  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 40   
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 41   
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 42   
  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 43   
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 44   
  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 45   
  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 46   
  * SUCH DAMAGE.
 47   
  * ====================================================================
 48   
  *
 49   
  * This software consists of voluntary contributions made by many
 50   
  * individuals on behalf of the Apache Software Foundation.  For more
 51   
  * information on the Apache Software Foundation, please see
 52   
  * <http://www.apache.org/>.
 53   
  *
 54   
  * Portions of this software are based upon public domain software
 55   
  * originally written at the National Center for Supercomputing Applications,
 56   
  * University of Illinois, Urbana-Champaign.
 57   
  */
 58   
 package com.bonevich.eclipse.cvsgrapher.editors;
 59   
 
 60   
 import com.bonevich.eclipse.cvsgrapher.CvsGraphPluginMessages;
 61   
 import com.bonevich.eclipse.cvsgrapher.CvsGraphPluginResources;
 62   
 import com.bonevich.eclipse.cvsgrapher.model.CvsGraphModel;
 63   
 
 64   
 import org.apache.commons.logging.Log;
 65   
 import org.apache.commons.logging.LogFactory;
 66   
 import org.eclipse.core.resources.IFile;
 67   
 import org.eclipse.core.resources.IMarker;
 68   
 import org.eclipse.core.resources.IResource;
 69   
 import org.eclipse.core.runtime.IProgressMonitor;
 70   
 import org.eclipse.draw2d.FigureCanvas;
 71   
 import org.eclipse.draw2d.geometry.Dimension;
 72   
 import org.eclipse.gef.DefaultEditDomain;
 73   
 import org.eclipse.gef.EditPartViewer;
 74   
 import org.eclipse.gef.GraphicalViewer;
 75   
 import org.eclipse.gef.editparts.ScalableFreeformRootEditPart;
 76   
 import org.eclipse.gef.ui.parts.GraphicalEditor;
 77   
 import org.eclipse.gef.ui.parts.GraphicalViewerKeyHandler;
 78   
 import org.eclipse.gef.ui.parts.ScrollingGraphicalViewer;
 79   
 import org.eclipse.jface.dialogs.ProgressMonitorDialog;
 80   
 import org.eclipse.jface.operation.IRunnableWithProgress;
 81   
 import org.eclipse.swt.SWT;
 82   
 import org.eclipse.swt.events.KeyEvent;
 83   
 import org.eclipse.swt.graphics.Rectangle;
 84   
 import org.eclipse.team.core.RepositoryProvider;
 85   
 import org.eclipse.team.core.TeamException;
 86   
 import org.eclipse.team.internal.ccvs.core.CVSProviderPlugin;
 87   
 import org.eclipse.team.internal.ccvs.core.ICVSRemoteFile;
 88   
 import org.eclipse.team.internal.ccvs.core.ILogEntry;
 89   
 import org.eclipse.team.internal.ccvs.core.resources.CVSWorkspaceRoot;
 90   
 import org.eclipse.team.internal.ccvs.ui.CVSUIPlugin;
 91   
 import org.eclipse.ui.IEditorInput;
 92   
 import org.eclipse.ui.IEditorSite;
 93   
 import org.eclipse.ui.PartInitException;
 94   
 
 95   
 import java.lang.reflect.InvocationTargetException;
 96   
 
 97   
 /**
 98   
  * The CVS Graph GEF editor.
 99   
  * @author jbonevic
 100   
  * @todo add tooltip to editor tab (class level todo)
 101   
  */
 102   
 public final class CvsGraphEditor
 103   
 	extends GraphicalEditor
 104   
 	implements CvsGraphPluginResources
 105   
 {
 106   
 	private static final Log _logger = LogFactory.getLog(CvsGraphEditor.class);
 107   
 
 108   
 	public static final String EDITOR_ID = "com.bonevich.eclipse.cvsgrapher.editor";
 109   
 
 110   
 	private ICVSRemoteFile  _remoteFile = null;
 111   
 	private ILogEntry[]     _entries = null;
 112   
 
 113   
 	public CvsGraphEditor()
 114   
 	{
 115   
 		setEditDomain(new DefaultEditDomain(this));
 116   
 	}
 117   
 
 118   
 	/**
 119   
 	 * @see org.eclipse.ui.IEditorPart#init(IEditorSite, IEditorInput)
 120   
 	 * @todo add tooltip to editor tab
 121   
 	 */
 122   
 	public void init(IEditorSite iSite, IEditorInput iInput) throws PartInitException
 123   
 	{
 124   
 		setSite(iSite);
 125   
 		setInput(iInput);
 126   
 		initializeCvsRemoteFile();
 127   
 	}
 128   
 
 129   
 	/**
 130   
 	 * @see org.eclipse.gef.ui.parts.GraphicalEditor#initializeGraphicalViewer()
 131   
 	 */
 132   
 	protected void initializeGraphicalViewer()
 133   
 	{
 134   
 		if (_logger.isDebugEnabled())
 135   
 		{
 136   
 			_logger.debug("Opening editor for " + _remoteFile.getRepositoryRelativePath());
 137   
 			_logger.debug("Viewer = " + getGraphicalViewer());
 138   
 		}
 139   
 		EditPartViewer viewer = getGraphicalViewer();
 140   
 		viewer.setContents(new CvsGraphModel(_entries));
 141   
 	}
 142   
 
 143   
 	/**
 144   
 	  * @see org.eclipse.ui.IEditorPart#isSaveAsAllowed()
 145   
 	  */
 146   
 	public boolean isSaveAsAllowed()
 147   
 	{
 148   
 		return false;
 149   
 	}
 150   
 
 151   
 	/**
 152   
 	 * @see org.eclipse.ui.IEditorPart#doSave(IProgressMonitor)
 153   
 	 */
 154   
 	public void doSave(IProgressMonitor iMonitor)
 155   
 	{
 156   
 	}
 157   
 
 158   
 	/**
 159   
 	 * @see org.eclipse.ui.IEditorPart#doSaveAs()
 160   
 	 */
 161   
 	public void doSaveAs()
 162   
 	{
 163   
 	}
 164   
 
 165   
 	/**
 166   
 	 * @see org.eclipse.ui.IEditorPart#gotoMarker(IMarker)
 167   
 	 */
 168   
 	public void gotoMarker(IMarker iMarker)
 169   
 	{
 170   
 	}
 171   
 
 172   
 	/**
 173   
 	 * @see org.eclipse.ui.IEditorPart#isDirty()
 174   
 	 */
 175   
 	public boolean isDirty()
 176   
 	{
 177   
 		return false;
 178   
 	}
 179   
 
 180   
 	/**
 181   
 	 * @see org.eclipse.gef.ui.parts.GraphicalEditor#configureGraphicalViewer()
 182   
 	 */
 183   
 	protected void configureGraphicalViewer()
 184   
 	{
 185   
 		super.configureGraphicalViewer();
 186   
 		GraphicalViewer viewer = getGraphicalViewer();
 187   
 
 188   
 		ScalableFreeformRootEditPart rootPart = new ScalableFreeformRootEditPart();
 189   
 		viewer.setRootEditPart(rootPart);
 190   
 		viewer.setEditPartFactory(new CvsGraphEditPartFactory());
 191   
 
 192   
 		((FigureCanvas) viewer.getControl()).setScrollBarVisibility(FigureCanvas.ALWAYS);
 193   
 		viewer.setContextMenu(new CvsGraphContextMenu(viewer, rootPart.getZoomManager()));
 194   
 		viewer.setKeyHandler(new CvsGraphViewerKeyHandler(viewer));
 195   
 	}
 196   
 
 197   
 	private void initializeCvsRemoteFile()
 198   
 	{
 199   
 		IResource resource = (IResource) getEditorInput().getAdapter(IResource.class);
 200   
 		if (resource instanceof IFile)
 201   
 		{
 202   
 			IFile file = (IFile) resource;
 203   
 
 204   
 			if (_logger.isDebugEnabled())
 205   
 			{
 206   
 				_logger.debug("resource = " + file);
 207   
 			}
 208   
 
 209   
 			RepositoryProvider teamProvider =
 210   
 				RepositoryProvider.getProvider(
 211   
 					file.getProject(),
 212   
 					CVSProviderPlugin.getTypeId()
 213   
 				);
 214   
 			if (teamProvider != null)
 215   
 			{
 216   
 				try
 217   
 				{
 218   
 					_remoteFile = (ICVSRemoteFile) CVSWorkspaceRoot.getRemoteResourceFor(file);
 219   
 					setTitle(CvsGraphPluginMessages.bind(CVSGRAPHER_EDITOR_TITLE_WITHARG, _remoteFile.getName()));
 220   
 					initializeLogEntries();
 221   
 				}
 222   
 				catch (TeamException e)
 223   
 				{
 224   
 					CVSUIPlugin.openError(getSite().getShell(), null, class="keyword">null, e);
 225   
 				}
 226   
 			}
 227   
 			return;
 228   
 		}
 229   
 		_remoteFile = null;
 230   
 		setTitle(CvsGraphPluginMessages.bind(CVSGRAPHER_EDITOR_TITLE));
 231   
 	}
 232   
 
 233   
 	private void initializeLogEntries()
 234   
 	{
 235   
 		try
 236   
 		{
 237   
 			new ProgressMonitorDialog(
 238   
 				getSite().getShell()
 239   
 			).run(
 240   
 				true,
 241   
 				true,
 242   
 				new IRunnableWithProgress()
 243   
 				{
 244   
 					public void run(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException
 245   
 					{
 246   
 						try
 247   
 						{
 248   
 							_entries = _remoteFile.getLogEntries(monitor);
 249   
 						}
 250   
 						catch (TeamException e)
 251   
 						{
 252   
 							throw new InvocationTargetException(e);
 253   
 						}
 254   
 					}
 255   
 				}
 256   
 			);
 257   
 		}
 258   
 		catch (InterruptedException ignore)
 259   
 		{
 260   
 			// ignore cancellation
 261   
 		}
 262   
 		catch (InvocationTargetException e)
 263   
 		{
 264   
 			CVSUIPlugin.openError(getSite().getShell(), null, class="keyword">null, e);
 265   
 		}
 266   
 	}
 267   
 
 268   
 	///////////////////////////////////////////
 269   
 	// Inner classes
 270   
 
 271   
 	/**
 272   
 	 * Extends the basic key handler to add appropriate scrolling behavior for PageDown,
 273   
 	 * PageUp, Home, and End key events.
 274   
 	 *
 275   
 	 * @author jbonevic
 276   
 	 */
 277   
 	final class CvsGraphViewerKeyHandler extends GraphicalViewerKeyHandler
 278   
 	{
 279   
 		public CvsGraphViewerKeyHandler(GraphicalViewer viewer)
 280  0 
 		{
 281  0 
 			super(viewer);
 282  0 
 		}
 283   
 
 284   
 		public boolean keyPressed(KeyEvent event)
 285   
 		{
 286  0 
 			if (event.keyCode == SWT.PAGE_DOWN || event.keyCode == SWT.PAGE_UP ||
 287   
 				event.keyCode == SWT.HOME || event.keyCode == SWT.END )
 288   
 			{
 289  0 
 				ScrollingGraphicalViewer viewer = (ScrollingGraphicalViewer) getGraphicalViewer();
 290  0 
 				FigureCanvas canvas = (FigureCanvas) viewer.getControl();
 291   
 
 292  0 
 				int x = canvas.getViewport().getViewLocation().x;
 293  0 
 				int y = canvas.getViewport().getViewLocation().y;
 294  0 
 				int dx = 0;
 295  0 
 				int dy = 0;
 296   
 
 297  0 
 				Dimension viewingArea = canvas.getViewport().getClientArea().getSize();
 298  0 
 				Rectangle totalArea = canvas.getBounds();
 299   
 
 300  0 
 				switch (event.keyCode)
 301   
 				{
 302  0 
 					case SWT.PAGE_DOWN :	dx = x; dy = y + viewingArea.height; break;
 303  0 
 					case SWT.PAGE_UP :		dx = x; dy = y - viewingArea.height; break;
 304  0 
 					case SWT.HOME :			dx = 0; dy = y; break;
 305  0 
 					case SWT.END :			dx = totalArea.width; dy = y; break;
 306  0 
 					default:                dx = x; dy = y; break;
 307   
 				}
 308   
 
 309  0 
 				canvas.scrollSmoothTo(dx, dy);
 310  0 
 				return true;
 311   
 			}
 312  0 
 			return super.keyPressed(event);
 313   
 		}
 314   
 	}
 315   
 }

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