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The source code/******************************************************************************* * Copyright (c) 2006 Tom Schindl and others. * 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: * Tom Schindl - initial API and implementation *******************************************************************************/ package org.eclipse.jface.snippets.viewers; import org.eclipse.jface.viewers.IStructuredContentProvider; import org.eclipse.jface.viewers.LabelProvider; import org.eclipse.jface.viewers.StructuredSelection; import org.eclipse.jface.viewers.TableViewer; import org.eclipse.jface.viewers.Viewer; import org.eclipse.swt.SWT; import org.eclipse.swt.events.MouseAdapter; import org.eclipse.swt.events.MouseEvent; import org.eclipse.swt.graphics.Point; import org.eclipse.swt.layout.FillLayout; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Shell; /** * Snippet that hides the selection when nothing is selected. * * @author Tom Schindl <tom.schindl@bestsolution.at> * */ public class Snippet004HideSelection { private class MyContentProvider implements IStructuredContentProvider { /* (non-Javadoc) * @see org.eclipse.jface.viewers.IStructuredContentProvider#getElements(java.lang.Object) */ public Object[] getElements(Object inputElement) { return (MyModel[])inputElement; } /* (non-Javadoc) * @see org.eclipse.jface.viewers.IContentProvider#dispose() */ public void dispose() { } /* (non-Javadoc) * @see org.eclipse.jface.viewers.IContentProvider#inputChanged(org.eclipse.jface.viewers.Viewer, java.lang.Object, java.lang.Object) */ public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { } } public class MyModel { public int counter; public MyModel(int counter) { this.counter = counter; } public String toString() { return "Item " + this.counter; } } public Snippet004HideSelection(Shell shell) { final TableViewer v = new TableViewer(shell,SWT.BORDER|SWT.FULL_SELECTION); v.setLabelProvider(new LabelProvider()); v.setContentProvider(new MyContentProvider()); MyModel[] model = createModel(); v.setInput(model); v.getTable().setLinesVisible(true); v.getTable().addMouseListener(new MouseAdapter() { /* (non-Javadoc) * @see org.eclipse.swt.events.MouseAdapter#mouseDown(org.eclipse.swt.events.MouseEvent) */ public void mouseDown(MouseEvent e) { if( v.getTable().getItem(new Point(e.x,e.y)) == null ) { v.setSelection(new StructuredSelection()); } } }); } private MyModel[] createModel() { MyModel[] elements = new MyModel[10]; for( int i = 0; i < 10; i++ ) { elements[i] = new MyModel(i); } return elements; } /** * @param args */ public static void main(String[] args) { Display display = new Display (); Shell shell = new Shell(display); shell.setLayout(new FillLayout()); new Snippet004HideSelection(shell); shell.open (); while (!shell.isDisposed ()) { if (!display.readAndDispatch ()) display.sleep (); } display.dispose (); } } |
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