| /******************************************************************************* |
| * Copyright (c) 2008, 2011 Tasktop Technologies and others. |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Public License v. 2.0 which is available at |
| * https://www.eclipse.org/legal/epl-2.0 |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * Tasktop Technologies - initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.mylyn.internal.tasks.ui.editors; |
| |
| import java.util.Arrays; |
| import java.util.HashSet; |
| import java.util.Map; |
| import java.util.Set; |
| |
| import org.eclipse.core.runtime.Assert; |
| import org.eclipse.mylyn.tasks.core.data.TaskAttribute; |
| import org.eclipse.mylyn.tasks.core.data.TaskDataModel; |
| import org.eclipse.mylyn.tasks.ui.editors.AbstractAttributeEditor; |
| import org.eclipse.mylyn.tasks.ui.editors.LayoutHint; |
| import org.eclipse.mylyn.tasks.ui.editors.LayoutHint.ColumnSpan; |
| import org.eclipse.mylyn.tasks.ui.editors.LayoutHint.RowSpan; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.events.SelectionAdapter; |
| import org.eclipse.swt.events.SelectionEvent; |
| import org.eclipse.swt.widgets.Composite; |
| import org.eclipse.swt.widgets.List; |
| import org.eclipse.swt.widgets.Text; |
| import org.eclipse.ui.forms.widgets.FormToolkit; |
| |
| /** |
| * @author Steffen Pingel |
| */ |
| public class MultiSelectionAttributeEditor extends AbstractAttributeEditor { |
| |
| private String[] allValues; |
| |
| private Text text; |
| |
| private List list; |
| |
| protected boolean suppressRefresh; |
| |
| public MultiSelectionAttributeEditor(TaskDataModel manager, TaskAttribute taskAttribute) { |
| super(manager, taskAttribute); |
| if (isReadOnly()) { |
| setLayoutHint(new LayoutHint(RowSpan.SINGLE, ColumnSpan.SINGLE)); |
| } else { |
| setLayoutHint(new LayoutHint(RowSpan.MULTIPLE, ColumnSpan.SINGLE)); |
| } |
| } |
| |
| @Override |
| public void createControl(Composite parent, FormToolkit toolkit) { |
| if (isReadOnly()) { |
| text = new Text(parent, SWT.FLAT | SWT.READ_ONLY | SWT.WRAP); |
| text.setFont(EditorUtil.TEXT_FONT); |
| toolkit.adapt(text, false, false); |
| text.setData(FormToolkit.KEY_DRAW_BORDER, Boolean.FALSE); |
| select(getValues(), getValuesLabels()); |
| text.setToolTipText(getDescription()); |
| setControl(text); |
| } else { |
| |
| list = new List(parent, SWT.FLAT | SWT.MULTI | SWT.V_SCROLL); |
| toolkit.adapt(list, false, false); |
| list.setData(FormToolkit.KEY_DRAW_BORDER, FormToolkit.TREE_BORDER); |
| list.setFont(EditorUtil.TEXT_FONT); |
| list.setToolTipText(getDescription()); |
| |
| updateListWithOptions(); |
| |
| select(getValues(), getValuesLabels()); |
| |
| if (allValues != null) { |
| list.addSelectionListener(new SelectionAdapter() { |
| @Override |
| public void widgetSelected(SelectionEvent e) { |
| Assert.isNotNull(allValues); |
| int[] indices = list.getSelectionIndices(); |
| String[] selectedValues = new String[indices.length]; |
| for (int i = 0; i < indices.length; i++) { |
| int index = indices[i]; |
| Assert.isLegal(index >= 0 && index <= allValues.length - 1); |
| selectedValues[i] = allValues[index]; |
| } |
| try { |
| suppressRefresh = true; |
| setValues(selectedValues); |
| } finally { |
| suppressRefresh = false; |
| } |
| } |
| }); |
| list.showSelection(); |
| } |
| |
| setControl(list); |
| } |
| } |
| |
| private void updateListWithOptions() { |
| if (list != null && !list.isDisposed()) { |
| Map<String, String> labelByValue = getAttributeMapper().getOptions(getTaskAttribute()); |
| if (labelByValue != null) { |
| int topIndex = list.getTopIndex(); |
| list.removeAll(); |
| allValues = labelByValue.keySet().toArray(new String[0]); |
| for (String value : allValues) { |
| list.add(labelByValue.get(value)); |
| } |
| if (topIndex > 0) { |
| list.setTopIndex(topIndex); |
| } |
| } |
| } |
| } |
| |
| public String[] getValues() { |
| return getAttributeMapper().getValues(getTaskAttribute()).toArray(new String[0]); |
| } |
| |
| public String[] getValuesLabels() { |
| return getAttributeMapper().getValueLabels(getTaskAttribute()).toArray(new String[0]); |
| } |
| |
| private void select(String[] values, String[] labels) { |
| if (text != null && !text.isDisposed()) { |
| StringBuilder valueString = new StringBuilder(); |
| if (labels != null) { |
| for (int i = 0; i < labels.length; i++) { |
| valueString.append(labels[i]); |
| if (i != labels.length - 1) { |
| valueString.append(", "); //$NON-NLS-1$ |
| } |
| } |
| } |
| text.setText(valueString.toString()); |
| |
| } else if (list != null && !list.isDisposed()) { |
| if (values != null) { |
| list.deselectAll(); |
| Set<String> selectedValues = new HashSet<String>(Arrays.asList(values)); |
| for (int i = 0; i < allValues.length; i++) { |
| if (selectedValues.contains(allValues[i])) { |
| list.select(i); |
| } |
| } |
| } else { |
| list.setItems(labels); |
| list.setSelection(labels); |
| } |
| } |
| } |
| |
| public void setValues(String[] values) { |
| getAttributeMapper().setValues(getTaskAttribute(), Arrays.asList(values)); |
| attributeChanged(); |
| } |
| |
| @Override |
| public void refresh() { |
| updateListWithOptions(); |
| select(getValues(), getValuesLabels()); |
| } |
| |
| @Override |
| public boolean shouldAutoRefresh() { |
| return !suppressRefresh; |
| } |
| } |