Java tutorial
/** * Copyright (c) 2013-2014 Angelo ZERR. * 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: * Angelo Zerr <angelo.zerr@gmail.com> - initial API and implementation */ package tern.eclipse.ide.internal.ui.properties; import java.util.ArrayList; import java.util.List; import org.eclipse.jface.dialogs.IDialogSettings; import org.eclipse.jface.viewers.CheckboxTableViewer; import org.eclipse.jface.viewers.IStructuredContentProvider; import org.eclipse.jface.viewers.ITableLabelProvider; import org.eclipse.jface.viewers.LabelProvider; import org.eclipse.jface.viewers.Viewer; import org.eclipse.jface.viewers.ViewerSorter; import org.eclipse.swt.SWT; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.graphics.Font; import org.eclipse.swt.graphics.Image; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Control; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Table; import org.eclipse.swt.widgets.TableColumn; import tern.eclipse.ide.internal.ui.TernUIMessages; import tern.eclipse.ide.ui.TernUIPlugin; import tern.server.ITernDef; /** * Table of Tern defs. * */ public class TernDefsBlock extends AbstractTableBlock { private Composite fControl; private final List<ITernDef> ternDefs = new ArrayList<ITernDef>(); private CheckboxTableViewer tableViewer; public void createControl(Composite ancestor) { Composite parent = new Composite(ancestor, SWT.NULL); GridLayout layout = new GridLayout(); layout.numColumns = 2; layout.marginHeight = 0; layout.marginWidth = 0; parent.setLayout(layout); Font font = ancestor.getFont(); parent.setFont(font); fControl = parent; GridData data; Label tableLabel = new Label(parent, SWT.NONE); tableLabel.setText(TernUIMessages.TernDefsBlock_desc); data = new GridData(); data.horizontalSpan = 2; tableLabel.setLayoutData(data); tableLabel.setFont(font); Table fTable = new Table(parent, SWT.CHECK | SWT.BORDER | SWT.FULL_SELECTION | SWT.V_SCROLL); data = new GridData(GridData.FILL_BOTH); data.widthHint = 450; fTable.setLayoutData(data); fTable.setFont(font); fTable.setHeaderVisible(true); fTable.setLinesVisible(true); TableColumn column1 = new TableColumn(fTable, SWT.NONE); column1.setWidth(180); column1.setResizable(true); column1.setText(TernUIMessages.TernDefsBlock_defName); column1.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { sortByName(); } }); TableColumn column2 = new TableColumn(fTable, SWT.NONE); column2.setWidth(180); column2.setResizable(true); column2.setText(TernUIMessages.TernDefsBlock_defPath); column2.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { sortByPath(); } }); tableViewer = new CheckboxTableViewer(fTable); tableViewer.setLabelProvider(new TernDefabelProvider()); tableViewer.setContentProvider(new ProcessorsContentProvider()); restoreColumnSettings(); } /** * Sorts by type, and name within type. */ // private void sortByType() { // tableViewer.setSorter(new ViewerSorter() { // @Override // public int compare(Viewer viewer, Object e1, Object e2) { // ITernDef left = (ITernDef) e1; // ITernDef right = (ITernDef) e2; // return left // .getProcessorType() // .getLabel() // .compareToIgnoreCase( // right.getProcessorType().getLabel()); // } // // @Override // public boolean isSorterProperty(Object element, String property) { // return true; // } // }); // } private void sortByPath() { tableViewer.setSorter(new ViewerSorter() { @Override public int compare(Viewer viewer, Object e1, Object e2) { ITernDef left = (ITernDef) e1; ITernDef right = (ITernDef) e2; return left.getPath().compareToIgnoreCase(right.getPath()); } @Override public boolean isSorterProperty(Object element, String property) { return true; } }); } /** * Sorts by name. */ private void sortByName() { tableViewer.setSorter(new ViewerSorter() { @Override public int compare(Viewer viewer, Object e1, Object e2) { if ((e1 instanceof ITernDef) && (e2 instanceof ITernDef)) { ITernDef left = (ITernDef) e1; ITernDef right = (ITernDef) e2; return left.getName().compareToIgnoreCase(right.getName()); } return super.compare(viewer, e1, e2); } @Override public boolean isSorterProperty(Object element, String property) { return true; } }); } public Control getControl() { return fControl; } protected void setTernDefs(ITernDef[] vms) { ternDefs.clear(); for (ITernDef element : vms) { ternDefs.add(element); } tableViewer.setInput(ternDefs); // tableViewer.refresh(); } public Object[] getCheckedDefs() { return tableViewer.getCheckedElements(); } public void setCheckedDefs(Object[] selectedDefs) { tableViewer.setCheckedElements(selectedDefs); /* * if (selectedDefs == null) { setSelection(new * StructuredSelection()); } else { setSelection(new * StructuredSelection(selectedDefs)); } */ } @Override protected void setSortColumn(int column) { switch (column) { case 1: sortByName(); break; // case 2: // sortByType(); // break; } super.setSortColumn(column); } @Override protected Table getTable() { return tableViewer.getTable(); } @Override protected IDialogSettings getDialogSettings() { return TernUIPlugin.getDefault().getDialogSettings(); } private class ProcessorsContentProvider implements IStructuredContentProvider { public Object[] getElements(Object input) { return ternDefs.toArray(); } public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { } public void dispose() { } } private static class TernDefabelProvider extends LabelProvider implements ITableLabelProvider { public String getColumnText(Object element, int columnIndex) { if (element instanceof ITernDef) { ITernDef install = (ITernDef) element; switch (columnIndex) { case 0: return install.getName(); case 1: return install.getPath(); } } return element.toString(); } public Image getColumnImage(Object element, int columnIndex) { return null; } } @Override protected String getQualifier() { return ""; } }