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Package: CheckedSelectModelClassCompositeImpl
CheckedSelectModelClassCompositeImpl
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| CheckedSelectModelClassCompositeImpl(Collection, Collection, Collection) |
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| createUI(Composite) |
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| getChecked() |
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| getViewer() |
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| isCheckedTree() |
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| setChecked() |
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| setInitialSelection(Object[]) |
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Coverage
1: /*******************************************************************************
2: * Copyright (c) 2011-2012 EclipseSource Muenchen GmbH and others.
3: *
4: * All rights reserved. This program and the accompanying materials
5: * are made available under the terms of the Eclipse Public License 2.0
6: * which accompanies this distribution, and is available at
7: * https://www.eclipse.org/legal/epl-2.0/
8: *
9: * SPDX-License-Identifier: EPL-2.0
10: *
11: * Contributors:
12: * Eugen Neufeld - initial API and implementation
13: *
14: *******************************************************************************/
15: package org.eclipse.emf.ecp.spi.common.ui.composites;
16:
17: import java.util.ArrayList;
18: import java.util.Arrays;
19: import java.util.Collection;
20: import java.util.List;
21:
22: import org.eclipse.emf.ecore.EClass;
23: import org.eclipse.emf.ecore.EPackage;
24: import org.eclipse.emf.ecp.internal.common.ui.MessageKeys;
25: import org.eclipse.emf.ecp.spi.common.ui.CheckedModelClassComposite;
26: import org.eclipse.emfforms.spi.localization.LocalizationServiceHelper;
27: import org.eclipse.jface.layout.GridDataFactory;
28: import org.eclipse.jface.layout.GridLayoutFactory;
29: import org.eclipse.jface.viewers.CheckboxTreeViewer;
30: import org.eclipse.jface.viewers.ISelectionChangedListener;
31: import org.eclipse.jface.viewers.IStructuredContentProvider;
32: import org.eclipse.jface.viewers.SelectionChangedEvent;
33: import org.eclipse.swt.SWT;
34: import org.eclipse.swt.events.SelectionAdapter;
35: import org.eclipse.swt.events.SelectionEvent;
36: import org.eclipse.swt.widgets.Button;
37: import org.eclipse.swt.widgets.Composite;
38:
39: /**
40: * This class provides a CheckedTree that allows the user to select {@link EPackage EPackages} and {@link EClass
41: * EClasses}.
42: *
43: * @author Eugen Neufeld
44: *
45: */
46: public class CheckedSelectModelClassCompositeImpl extends AbstractEClassTreeSelectionComposite implements
47: CheckedModelClassComposite {
48: private Object[] checked;
49:
50: private Object[] initialSelection;
51:
52: /**
53: * Constructor setting the necessary data for selecting the {@link EClass EClasses}.
54: *
55: * @param unsupportedEPackages {@link EPackage EPackages} that are not supported
56: * @param filteredEPackages {@link EPackage EPackages} selected by the user
57: * @param filteredEClasses {@link EClass EClasses} selected by the user
58: */
59: public CheckedSelectModelClassCompositeImpl(Collection<EPackage> unsupportedEPackages,
60: Collection<EPackage> filteredEPackages, Collection<EClass> filteredEClasses) {
61: super(unsupportedEPackages, filteredEPackages, filteredEClasses);
62: }
63:
64: @Override
65: protected boolean isCheckedTree() {
66: return true;
67: }
68:
69: @Override
70: public Composite createUI(Composite parent) {
71: final Composite composite = super.createUI(parent);
72: final Composite buttons = new Composite(composite, SWT.NONE);
73: GridLayoutFactory.fillDefaults().numColumns(2).equalWidth(true).applyTo(buttons);
74: GridDataFactory.fillDefaults().align(SWT.FILL, SWT.TOP).grab(true, false).span(2, 1).applyTo(buttons);
75:
76: final Button buttonAll = new Button(buttons, SWT.PUSH);
77: buttonAll.setText(LocalizationServiceHelper.getString(CheckedSelectModelClassCompositeImpl.class,
78: MessageKeys.CheckedModelElementHelper_SelectAllLabel));
79: GridDataFactory.fillDefaults().align(SWT.FILL, SWT.TOP).grab(true, false).applyTo(buttonAll);
80: buttonAll.addSelectionListener(new SelectionAdapter() {
81: @Override
82: public void widgetSelected(SelectionEvent e) {
83: getViewer().setCheckedElements(
84: ((IStructuredContentProvider) getViewer().getContentProvider()).getElements(new Object()));
85: setChecked();
86: }
87: });
88: final Button buttonNone = new Button(buttons, SWT.PUSH);
89: buttonNone.setText(LocalizationServiceHelper.getString(CheckedSelectModelClassCompositeImpl.class,
90: MessageKeys.CheckedModelElementHelper_DeselectAllLabel));
91: GridDataFactory.fillDefaults().align(SWT.FILL, SWT.TOP).grab(true, false).applyTo(buttonNone);
92: buttonNone.addSelectionListener(new SelectionAdapter() {
93: @Override
94: public void widgetSelected(SelectionEvent e) {
95: getViewer().setCheckedElements(new Object[0]);
96: setChecked();
97: }
98: });
99: getViewer().addSelectionChangedListener(new ISelectionChangedListener() {
100: @Override
101: public void selectionChanged(SelectionChangedEvent event) {
102: setChecked();
103: }
104: });
105:
106:• if (initialSelection != null) {
107: getViewer().setCheckedElements(initialSelection);
108: setChecked();
109: }
110: return composite;
111: }
112:
113: /**
114: * @return the treeViewer
115: */
116: @Override
117: public CheckboxTreeViewer getViewer() {
118: return (CheckboxTreeViewer) super.getViewer();
119: }
120:
121: private void setChecked() {
122: final List<Object> objects = new ArrayList<Object>(Arrays.asList(getViewer().getCheckedElements()));
123: objects.removeAll(Arrays.asList(getViewer().getGrayedElements()));
124: checked = objects.toArray();
125: }
126:
127: /**
128: * Returns the checked Elements.
129: *
130: * @return an array containing the checked elements
131: */
132: @Override
133: public Object[] getChecked() {
134: return checked;
135:
136: }
137:
138: /**
139: * Initialize the selection by setting the checked elements.
140: *
141: * @param selection the objects to check
142: */
143: @Override
144: public void setInitialSelection(Object[] selection) {
145:• if (getViewer() != null) {
146: getViewer().setCheckedElements(selection);
147: } else {
148: initialSelection = selection;
149: }
150: }
151: }