| /******************************************************************************* |
| * Copyright (c) 2011-2016 EclipseSource Muenchen GmbH 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: |
| * jonas - initial API and implementation |
| ******************************************************************************/ |
| package org.eclipse.emf.ecp.view.spi.table.nebula.grid; |
| |
| import org.eclipse.emfforms.common.Optional; |
| import org.eclipse.emfforms.common.Property; |
| import org.eclipse.emfforms.common.Property.ChangeListener; |
| import org.eclipse.emfforms.spi.swt.table.AbstractTableViewerColumnBuilder; |
| import org.eclipse.emfforms.spi.swt.table.ColumnConfiguration; |
| import org.eclipse.jface.layout.GridDataFactory; |
| import org.eclipse.jface.layout.GridLayoutFactory; |
| import org.eclipse.jface.viewers.EditingSupport; |
| import org.eclipse.nebula.jface.gridviewer.GridTableViewer; |
| import org.eclipse.nebula.jface.gridviewer.GridViewerColumn; |
| import org.eclipse.nebula.widgets.grid.GridColumn; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.custom.ControlEditor; |
| import org.eclipse.swt.events.ModifyEvent; |
| import org.eclipse.swt.events.ModifyListener; |
| import org.eclipse.swt.events.SelectionAdapter; |
| import org.eclipse.swt.events.SelectionEvent; |
| import org.eclipse.swt.widgets.Button; |
| import org.eclipse.swt.widgets.Composite; |
| import org.eclipse.swt.widgets.Control; |
| import org.eclipse.swt.widgets.Display; |
| import org.eclipse.swt.widgets.Event; |
| import org.eclipse.swt.widgets.Item; |
| import org.eclipse.swt.widgets.Listener; |
| import org.eclipse.swt.widgets.Text; |
| |
| /** |
| * Nebula Grid viewer configuration helper class. |
| * |
| * @author Mat Hansen <mhansen@eclipsesource.com> |
| * |
| */ |
| public class GridViewerColumnBuilder extends AbstractTableViewerColumnBuilder<GridTableViewer, GridViewerColumn> { |
| |
| /** |
| * The constructor. |
| * |
| * @param config the {@link ColumnConfiguration} |
| */ |
| public GridViewerColumnBuilder(ColumnConfiguration config) { |
| super(config); |
| } |
| |
| @Override |
| public GridViewerColumn createViewerColumn(GridTableViewer tableViewer) { |
| return new GridViewerColumn(tableViewer, getConfig().getStyleBits()); |
| } |
| |
| @Override |
| protected void configure(GridTableViewer tableViewer, GridViewerColumn viewerColumn) { |
| super.configure(tableViewer, viewerColumn); |
| |
| // Nebula Grid supports a few more things |
| configureHideShow(tableViewer, viewerColumn); |
| configureFiltering(tableViewer, viewerColumn); |
| |
| } |
| |
| @Override |
| protected Item getTableColumn(GridViewerColumn viewerColumn) { |
| return viewerColumn.getColumn(); |
| } |
| |
| @Override |
| protected void configureViewerColumn(GridViewerColumn viewerColumn) { |
| final GridColumn column = viewerColumn.getColumn(); |
| |
| column.setResizeable(getConfig().isResizeable()); |
| column.setMoveable(getConfig().isMoveable()); |
| column.setVisible(getConfig().visible().getValue()); |
| // column.getColumn().setWidth(width); |
| } |
| |
| @Override |
| protected void configureEditingSupport(GridViewerColumn viewerColumn, GridTableViewer tableViewer) { |
| final Optional<EditingSupport> editingSupport = getConfig().createEditingSupport(tableViewer); |
| if (editingSupport.isPresent()) { |
| viewerColumn.setEditingSupport(editingSupport.get()); |
| } |
| } |
| |
| /** |
| * Configure hide/show columns toggle. |
| * |
| * @param tableViewer the table viewer |
| * @param viewerColumn the viewer column to configure |
| */ |
| protected void configureHideShow(final GridTableViewer tableViewer, final GridViewerColumn viewerColumn) { |
| |
| getConfig().visible().addChangeListener(new ChangeListener<Boolean>() { |
| @Override |
| public void valueChanged(Property<Boolean> property, Boolean oldValue, Boolean newValue) { |
| getConfig().matchFilter().resetToDefault(); |
| |
| final GridColumn column = viewerColumn.getColumn(); |
| Listener hideShowListener = extractShowListener(viewerColumn.getColumn()); |
| if (column.getHeaderControl() == null && hideShowListener != null) { |
| column.removeListener(SWT.Show, hideShowListener); |
| column.removeListener(SWT.Hide, hideShowListener); |
| } else { |
| hideShowListener = null; |
| } |
| column.setVisible(newValue); |
| if (hideShowListener != null) { |
| column.addListener(SWT.Show, hideShowListener); |
| column.addListener(SWT.Hide, hideShowListener); |
| } |
| } |
| }); |
| |
| } |
| |
| private static Listener extractShowListener(final GridColumn column) { |
| for (final Listener listener : column.getListeners(SWT.Show)) { |
| if (listener.getClass().getEnclosingClass() != null |
| && ControlEditor.class.isAssignableFrom(listener.getClass().getEnclosingClass())) { |
| return listener; |
| } |
| } |
| return null; |
| } |
| |
| /** |
| * Configure column filter. |
| * |
| * @param tableViewer the table viewer |
| * @param viewerColumn the viewer column to configure |
| */ |
| protected void configureFiltering(final GridTableViewer tableViewer, final GridViewerColumn viewerColumn) { |
| final GridColumn column = viewerColumn.getColumn(); |
| |
| getConfig().showFilterControl().addChangeListener(new ChangeListener<Boolean>() { |
| |
| private Control filterControl; |
| |
| @Override |
| public void valueChanged(Property<Boolean> property, Boolean oldValue, Boolean newValue) { |
| if (newValue) { |
| filterControl = createHeaderFilterControl(column.getParent()); |
| column.setHeaderControl(filterControl); |
| } else { |
| column.setHeaderControl(null); |
| if (filterControl != null) { |
| filterControl.dispose(); |
| } |
| |
| getConfig().matchFilter().resetToDefault(); |
| } |
| // hack: force header height recalculation |
| column.setWidth(column.getWidth()); |
| } |
| |
| }); |
| |
| getConfig().matchFilter().addChangeListener(new ChangeListener<Object>() { |
| @Override |
| public void valueChanged(Property<Object> property, Object oldValue, Object newValue) { |
| tableViewer.refresh(); |
| } |
| }); |
| |
| } |
| |
| /** |
| * Creates a column filter control. |
| * |
| * @param parent the parent composite |
| * @return new filter control instance |
| */ |
| protected Control createHeaderFilterControl(Composite parent) { |
| |
| final Composite filterComposite = new Composite(parent, SWT.NONE); |
| GridLayoutFactory.fillDefaults().numColumns(2).applyTo(filterComposite); |
| |
| final Text txtFilter = new Text(filterComposite, SWT.BORDER); |
| GridDataFactory.fillDefaults().grab(true, false).applyTo(txtFilter); |
| |
| txtFilter.addModifyListener(new ModifyListener() { |
| private final Runnable runnable = new Runnable() { |
| @Override |
| public void run() { |
| if (!txtFilter.isDisposed()) { |
| getConfig().matchFilter().setValue(txtFilter.getText()); |
| } |
| } |
| }; |
| |
| @Override |
| public void modifyText(ModifyEvent e) { |
| Display.getDefault().timerExec(300, runnable); |
| } |
| }); |
| |
| filterComposite.addListener(SWT.Show, new Listener() { |
| @Override |
| public void handleEvent(Event event) { |
| if (!txtFilter.isDisposed() && getConfig().matchFilter().getValue() != null) { |
| txtFilter.setText(String.valueOf(getConfig().matchFilter().getValue())); |
| } |
| } |
| }); |
| |
| final Button btnClear = new Button(filterComposite, SWT.PUSH); |
| GridDataFactory.fillDefaults().grab(false, false).applyTo(btnClear); |
| btnClear.setText("x"); //$NON-NLS-1$ |
| btnClear.addSelectionListener(new SelectionAdapter() { |
| @Override |
| public void widgetSelected(SelectionEvent e) { |
| txtFilter.setText(""); //$NON-NLS-1$ |
| } |
| }); |
| |
| return filterComposite; |
| } |
| |
| } |