Java tutorial
/***************************************************************************** * Copyright (c) 2007, 2008 g-Eclipse Consortium * 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 * * Initial development of the original code was made for the * g-Eclipse project founded by European Union * project number: FP6-IST-034327 http://www.geclipse.eu/ * * Contributors: * Sylva Girtelschmid GUP, JKU - initial API and implementation *****************************************************************************/ package eu.geclipse.ui.views; import org.eclipse.core.runtime.CoreException; import org.eclipse.core.runtime.IConfigurationElement; import org.eclipse.core.runtime.IExtension; import org.eclipse.core.runtime.IExtensionPoint; import org.eclipse.core.runtime.Platform; import org.eclipse.jface.action.IAction; import org.eclipse.jface.action.IToolBarManager; import org.eclipse.jface.resource.ImageDescriptor; import org.eclipse.jface.resource.ImageRegistry; import org.eclipse.swt.SWT; import org.eclipse.swt.custom.CTabFolder; import org.eclipse.swt.custom.CTabFolder2Adapter; import org.eclipse.swt.custom.CTabFolderEvent; import org.eclipse.swt.custom.CTabItem; import org.eclipse.swt.events.FocusAdapter; import org.eclipse.swt.events.FocusEvent; import org.eclipse.swt.graphics.Image; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.widgets.Composite; import org.eclipse.ui.part.ViewPart; import eu.geclipse.core.IGridVisualisationWindow; import eu.geclipse.core.model.IGridVisualisation; import eu.geclipse.core.reporting.ProblemException; import eu.geclipse.ui.dialogs.ProblemDialog; import eu.geclipse.ui.internal.Activator; import eu.geclipse.ui.visualisation.AbstractVisualisationWindow; /** * @author sgirtel * */ public class VisualisationView extends ViewPart { protected boolean newTabOn = false; protected IAction checkBtnAction = null; private final int allowedNumOfTabs = 10; // private final VisViewDropDownAction fileDropDownAction = null; private CTabFolder cTabFolder; private IGridVisualisation visResource = null; private void createActions() { ImageRegistry imgReg = Activator.getDefault().getImageRegistry(); Image image = imgReg.get("toggleTabBtn"); //$NON-NLS-1$ ImageDescriptor toggleTabBtnImage = ImageDescriptor.createFromImage(image); this.checkBtnAction = new org.eclipse.jface.action.Action( Messages.getString("VisualisationView.switchToUpdatesIntoTheSameTab"), //$NON-NLS-1$ IAction.AS_CHECK_BOX) { @Override public boolean isChecked() { return VisualisationView.this.newTabOn; } @Override public void run() { if (!VisualisationView.this.checkBtnAction.isChecked()) { VisualisationView.this.newTabOn = true; VisualisationView.this.checkBtnAction .setToolTipText(Messages.getString("VisualisationView.switchToNewTabWhenUpdating")); //$NON-NLS-1$ VisualisationView.this.checkBtnAction.setChecked(false); } else { VisualisationView.this.newTabOn = false; VisualisationView.this.checkBtnAction .setToolTipText(Messages.getString("VisualisationView.switchToUpdatesIntoTheSameTab")); //$NON-NLS-1$ VisualisationView.this.checkBtnAction.setChecked(true); } } }; this.checkBtnAction.setToolTipText(Messages.getString("VisualisationView.switchToUpdatesIntoTheSameTab")); //$NON-NLS-1$ this.checkBtnAction.setImageDescriptor(toggleTabBtnImage); } /* (non-Javadoc) * @see org.eclipse.ui.part.WorkbenchPart#createPartControl(org.eclipse.swt.widgets.Composite) */ @Override public void createPartControl(final Composite parent) { GridData gridData = new GridData(); gridData.horizontalAlignment = GridData.FILL; gridData.grabExcessHorizontalSpace = true; gridData.grabExcessVerticalSpace = true; gridData.verticalAlignment = GridData.FILL; this.cTabFolder = new CTabFolder(parent, SWT.FLAT | SWT.BOTTOM); this.cTabFolder.setLayoutData(gridData); this.cTabFolder.addFocusListener(new FocusAdapter() { @Override public void focusGained(final FocusEvent event) { CTabFolder folder = (CTabFolder) event.widget; CTabItem item = folder.getSelection(); if (item != null && item.getControl() != null) { item.getControl().setFocus(); } } }); this.cTabFolder.addCTabFolder2Listener(new CTabFolder2Adapter() { @Override public void close(final CTabFolderEvent event) { //nothing } }); // this.fileDropDownAction = // new VisViewDropDownAction( getSite().getWorkbenchWindow() ); // hookContextMenu(); // contributeToActionBars(); createActions(); createToolBar(); } // private void createActions() { // // ImageRegistry imgReg = Activator.getDefault().getImageRegistry(); // Image image = imgReg.get( "toggleTabBtn" ); //$NON-NLS-1$ // ImageDescriptor toggleTabBtnImage = ImageDescriptor.createFromImage( image ); // // this.checkBtnAction = // new org.eclipse.jface.action.Action( // Messages.getString( "VisualisationView.switchToUpdatesIntoTheSameTab" ), //$NON-NLS-1$ // IAction.AS_CHECK_BOX ) { // // @Override // public boolean isChecked() { // return VisualisationView.this.newTabOn; // } // // @Override // public void run() { // if ( !VisualisationView.this.checkBtnAction.isChecked() ) { // VisualisationView.this.newTabOn = true; // VisualisationView.this.checkBtnAction // .setToolTipText( Messages.getString( "VisualisationView.switchToNewTabWhenUpdating" ) ); // VisualisationView.this.checkBtnAction.setChecked( false ); // } // else { // VisualisationView.this.newTabOn = false; // VisualisationView.this.checkBtnAction // .setToolTipText( Messages.getString( "VisualisationView.switchToUpdatesIntoTheSameTab" ) ); // VisualisationView.this.checkBtnAction.setChecked( true ); // } // } // }; // this.checkBtnAction.setToolTipText( Messages.getString("VisualisationView.switchToUpdatesIntoTheSameTab") ); // this.checkBtnAction.setImageDescriptor( toggleTabBtnImage ); // // } private void createToolBar() { IToolBarManager mgr = getViewSite().getActionBars().getToolBarManager(); mgr.add(this.checkBtnAction); } // @SuppressWarnings("unused") // private void contributeToActionBars() { // IActionBars bars = getViewSite().getActionBars(); // fillLocalToolBar( bars.getToolBarManager() ); // } // // @SuppressWarnings("unused") // private void fillLocalToolBar( final IToolBarManager manager ) { // if( this.fileDropDownAction != null ) { // manager.add( this.fileDropDownAction ); // } // } // // @SuppressWarnings("unused") // private void hookContextMenu() { // MenuManager menuMgr = new MenuManager( "#PopupMenu" ); // menuMgr.setRemoveAllWhenShown( true ); // menuMgr.addMenuListener( new IMenuListener() { // // public void menuAboutToShow( final IMenuManager manager ) { // VisualisationView.this.fillContextMenu( manager ); // } // } ); // } // void fillContextMenu( final IMenuManager manager ) { // if( this.fileDropDownAction != null ) { // manager.add( this.fileDropDownAction ); // } // manager.add( new Separator( IWorkbenchActionConstants.MB_ADDITIONS ) ); // } /** * @return folder of tabs */ public CTabFolder getCTabFolder() { return this.cTabFolder; } /** * @param onRenderAction * @return tab item */ public CTabItem getCTabItem(final boolean onRenderAction) { CTabItem cTabItem = this.cTabFolder != null ? getTab(onRenderAction) : null; return cTabItem; } private CTabItem getTab(final boolean onRenderAction) { CTabItem tabItem = null; if (!this.checkBtnAction.isChecked() && onRenderAction) { if (this.cTabFolder.getItemCount() < this.allowedNumOfTabs) { tabItem = new CTabItem(this.cTabFolder, SWT.CLOSE); this.cTabFolder.setSelection(tabItem); } else { ProblemException pe = new ProblemException("eu.geclipse.ui.reachedMaximumAllowedOpenedTabsProblem", //$NON-NLS-1$ Activator.PLUGIN_ID); ProblemDialog.openProblem(null, Messages.getString("VisualisationView.dialogTitle"), //$NON-NLS-1$ Messages.getString("VisualisationView.maxNumOfTabsOpenedErrorMessage"), //$NON-NLS-1$ pe); } } else { tabItem = this.cTabFolder.getSelection() != null ? this.cTabFolder.getSelection() : new CTabItem(this.cTabFolder, SWT.CLOSE); this.cTabFolder.setSelection(tabItem); } return tabItem; } /** * Sets the right window composite for the visualisation view and * invokes the rendering process for the given resource. * @param resFileNameExt * @param visType Remote or Local * */ public boolean render(final String resFileNameExt, final String visType) { if (this.visResource == null) { return false; } // find classes implementing the visualisation window extension point // which match this resource IGridVisualisationWindow winImpl = null; IExtensionPoint p = Platform.getExtensionRegistry() .getExtensionPoint(AbstractVisualisationWindow.WINDOW_EXTENSION_POINT); IExtension[] extensions = p.getExtensions(); for (IExtension extension : extensions) { IConfigurationElement[] elements = extension.getConfigurationElements(); for (IConfigurationElement element : elements) { if (AbstractVisualisationWindow.EXT_VISUALISATION_WIDNOW_ELEMENT.equals(element.getName())) { if (element.getAttribute(AbstractVisualisationWindow.EXT_FILE_EXTENSION) .compareTo(resFileNameExt) == 0 && (element.getAttribute(AbstractVisualisationWindow.EXT_TYPE) != null ? element.getAttribute(AbstractVisualisationWindow.EXT_TYPE) .compareTo(visType) == 0 : true)) { try { winImpl = (IGridVisualisationWindow) element.createExecutableExtension( AbstractVisualisationWindow.EXT_VISUALISATION_WINDOW_CLASS); ((AbstractVisualisationWindow) winImpl).init(VisualisationView.this.cTabFolder, SWT.EMBEDDED); break; } catch (CoreException e) { Activator.logException(e); return false; } } } } } return this.visResource.render(visType, winImpl); } /** * Passing the focus request to the viewer's control. */ @Override public void setFocus() { if (this.cTabFolder != null) { this.cTabFolder.setFocus(); } } /** * @param resource */ public void setVisResource(final IGridVisualisation resource) { this.visResource = resource; } public boolean isSuccess() { // TODO Auto-generated method stub return false; } }