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Package: SWTStackLayoutRenderer
SWTStackLayoutRenderer
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| SWTStackLayoutRenderer(VStackLayout, ViewModelContext, ReportService) |
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| dispose() |
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| getGridDescription(SWTGridDescription) |
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| notifyChange() |
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| postInit() |
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| preInit() |
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| renderControl(SWTGridCell, Composite) |
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| setTopElement() |
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Coverage
1: /*******************************************************************************
2: * Copyright (c) 2011-2014 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: * Johannes Faltermeier - initial API and implementation
13: ******************************************************************************/
14: package org.eclipse.emf.ecp.view.spi.stack.ui.swt;
15:
16: import java.util.LinkedHashMap;
17: import java.util.Map;
18: import java.util.Map.Entry;
19:
20: import javax.inject.Inject;
21:
22: import org.eclipse.core.runtime.IStatus;
23: import org.eclipse.core.runtime.Status;
24: import org.eclipse.emf.ecp.view.internal.stack.ui.swt.Activator;
25: import org.eclipse.emf.ecp.view.internal.stack.ui.swt.MessageKeys;
26: import org.eclipse.emf.ecp.view.spi.context.ViewModelContext;
27: import org.eclipse.emf.ecp.view.spi.model.ModelChangeListener;
28: import org.eclipse.emf.ecp.view.spi.model.ModelChangeNotification;
29: import org.eclipse.emf.ecp.view.spi.model.VElement;
30: import org.eclipse.emf.ecp.view.spi.model.reporting.StatusReport;
31: import org.eclipse.emf.ecp.view.spi.renderer.NoPropertyDescriptorFoundExeption;
32: import org.eclipse.emf.ecp.view.spi.renderer.NoRendererFoundException;
33: import org.eclipse.emf.ecp.view.spi.stack.model.VStackItem;
34: import org.eclipse.emf.ecp.view.spi.stack.model.VStackLayout;
35: import org.eclipse.emf.ecp.view.spi.stack.model.VStackPackage;
36: import org.eclipse.emf.ecp.view.spi.swt.layout.LayoutProviderHelper;
37: import org.eclipse.emfforms.spi.common.report.ReportService;
38: import org.eclipse.emfforms.spi.core.services.view.RootDomainModelChangeListener;
39: import org.eclipse.emfforms.spi.localization.LocalizationServiceHelper;
40: import org.eclipse.emfforms.spi.swt.core.AbstractSWTRenderer;
41: import org.eclipse.emfforms.spi.swt.core.EMFFormsNoRendererException;
42: import org.eclipse.emfforms.spi.swt.core.EMFFormsRendererFactory;
43: import org.eclipse.emfforms.spi.swt.core.layout.GridDescriptionFactory;
44: import org.eclipse.emfforms.spi.swt.core.layout.SWTGridCell;
45: import org.eclipse.emfforms.spi.swt.core.layout.SWTGridDescription;
46: import org.eclipse.swt.SWT;
47: import org.eclipse.swt.custom.StackLayout;
48: import org.eclipse.swt.widgets.Composite;
49: import org.eclipse.swt.widgets.Control;
50:
51: /**
52: * The SWT {@link VStackLayout} renderer.
53: *
54: * @author jfaltermeier
55: *
56: */
57: public class SWTStackLayoutRenderer extends AbstractSWTRenderer<VStackLayout> implements RootDomainModelChangeListener {
58:
59: /**
60: * Default constructor.
61: *
62: * @param vElement the view model element to be rendered
63: * @param viewContext the view context
64: * @param reportService the {@link ReportService}
65: * @since 1.6
66: */
67: @Inject
68: public SWTStackLayoutRenderer(VStackLayout vElement, ViewModelContext viewContext, ReportService reportService) {
69: super(vElement, viewContext, reportService);
70: viewContext.registerRootDomainModelChangeListener(this);
71: }
72:
73: private static final String CONTROL_STACK_COMPOSITE = "org_eclipse_emf_ecp_ui_layout_stack"; //$NON-NLS-1$
74:
75: private SWTGridDescription gridDescription;
76: private ModelChangeListener listener;
77: private Map<VStackItem, Composite> itemToCompositeMap;
78: private StackLayout stackLayout;
79: private Composite stackComposite;
80:
81: /**
82: * {@inheritDoc}
83: *
84: * @see org.eclipse.emfforms.spi.swt.core.AbstractSWTRenderer#getGridDescription(org.eclipse.emfforms.spi.swt.core.layout.SWTGridDescription)
85: */
86: @Override
87: public SWTGridDescription getGridDescription(SWTGridDescription gridDescription) {
88:• if (this.gridDescription == null) {
89: this.gridDescription = GridDescriptionFactory.INSTANCE.createSimpleGrid(1, 1, this);
90: }
91: return this.gridDescription;
92: }
93:
94: /**
95: * {@inheritDoc}
96: *
97: * @see org.eclipse.emfforms.spi.swt.core.AbstractSWTRenderer#renderControl(org.eclipse.emfforms.spi.swt.core.layout.SWTGridCell,
98: * org.eclipse.emf.ecp.view.spi.swt.Composite)
99: */
100: @Override
101: protected Control renderControl(SWTGridCell cell, Composite parent) throws NoRendererFoundException,
102: NoPropertyDescriptorFoundExeption {
103:
104:• if (cell.getColumn() != 0) {
105: return null;
106: }
107:
108: stackComposite = new Composite(parent, SWT.NONE);
109: stackComposite.setBackground(parent.getBackground());
110: stackComposite.setData(CUSTOM_VARIANT, CONTROL_STACK_COMPOSITE);
111:
112: stackLayout = new StackLayout();
113: stackComposite.setLayout(stackLayout);
114:
115: final Map<VStackItem, AbstractSWTRenderer<VElement>> elementRendererMap = new LinkedHashMap<VStackItem, AbstractSWTRenderer<VElement>>();
116:• for (final VStackItem item : getVElement().getStackItems()) {
117: AbstractSWTRenderer<VElement> renderer;
118: try {
119: renderer = getViewModelContext().getService(EMFFormsRendererFactory.class).getRendererInstance(item,
120: getViewModelContext());
121: } catch (final EMFFormsNoRendererException ex) {
122: getReportService().report(new StatusReport(
123: new Status(IStatus.INFO, Activator.PLUGIN_ID, String.format(
124: LocalizationServiceHelper.getString(SWTStackLayoutRenderer.class,
125: MessageKeys.SWTStackLayoutRenderer_NoRendererForItemCompositeFound),
126: item.eClass()
127: .getName(),
128: ex))));
129: continue;
130: }
131: elementRendererMap.put(item, renderer);
132: }
133:
134:• for (final Entry<VStackItem, AbstractSWTRenderer<VElement>> entry : elementRendererMap.entrySet()) {
135: final VStackItem stackItem = entry.getKey();
136: final AbstractSWTRenderer<VElement> renderer = entry.getValue();
137:
138: final Composite itemComposite = new Composite(stackComposite, SWT.NONE);
139: itemComposite.setBackground(parent.getBackground());
140: final SWTGridDescription elementGridDescription = renderer
141: .getGridDescription(GridDescriptionFactory.INSTANCE.createEmptyGridDescription());
142: itemComposite.setLayoutData(LayoutProviderHelper.getSpanningLayoutData(1, 1));
143: itemComposite.setLayout(LayoutProviderHelper.getColumnLayout(elementGridDescription.getColumns(), false));
144:
145:• for (final SWTGridCell currentCell : elementGridDescription.getGrid()) {
146: final Control control = currentCell.getRenderer().render(currentCell, itemComposite);
147:• if (control == null) {
148: continue;
149: }
150: control.setLayoutData(LayoutProviderHelper.getLayoutData(currentCell, elementGridDescription,
151: elementGridDescription, elementGridDescription, currentCell.getRenderer().getVElement(),
152: getViewModelContext().getDomainModel(), control));
153: }
154:
155:• for (final SWTGridCell currentCell : elementGridDescription.getGrid()) {
156: currentCell.getRenderer().finalizeRendering(itemComposite);
157: }
158:
159: itemToCompositeMap.put(stackItem, itemComposite);
160: }
161:
162: /* Add empty composite if value with no matching item is set */
163: final Composite nullComposite = new Composite(stackComposite, SWT.NONE);
164: itemToCompositeMap.put(null, nullComposite);
165:
166: setTopElement();
167: return stackComposite;
168: }
169:
170: private void setTopElement() {
171: final VStackItem topElement = getVElement().getTopElement();
172: final Composite composite = itemToCompositeMap.get(topElement);
173:• if (composite == null) {
174: return;
175: }
176: stackLayout.topControl = composite;
177: stackComposite.layout();
178: }
179:
180: /**
181: * {@inheritDoc}
182: *
183: * @see org.eclipse.emfforms.spi.swt.core.AbstractSWTRenderer#preInit()
184: */
185: @Override
186: protected void preInit() {
187: super.preInit();
188:
189: listener = new ModelChangeListener() {
190: @Override
191: public void notifyChange(ModelChangeNotification notification) {
192: if (notification.getRawNotification().isTouch()) {
193: return;
194: }
195: if (notification.getNotifier() != getVElement()) {
196: return;
197: }
198: if (notification.getStructuralFeature() == VStackPackage.eINSTANCE.getStackLayout_TopElement()) {
199: setTopElement();
200: }
201: }
202: };
203:
204: itemToCompositeMap = new LinkedHashMap<VStackItem, Composite>();
205: }
206:
207: /**
208: * {@inheritDoc}
209: *
210: * @see org.eclipse.emfforms.spi.swt.core.AbstractSWTRenderer#postInit()
211: */
212: @Override
213: protected void postInit() {
214: super.postInit();
215: setTopElement();
216: getViewModelContext().registerViewChangeListener(listener);
217: }
218:
219: /**
220: * {@inheritDoc}
221: *
222: * @see org.eclipse.emfforms.spi.swt.core.AbstractSWTRenderer#dispose()
223: */
224: @Override
225: protected void dispose() {
226: getViewModelContext().unregisterViewChangeListener(listener);
227: gridDescription = null;
228: listener = null;
229: itemToCompositeMap.clear();
230: itemToCompositeMap = null;
231: stackLayout = null;
232: stackComposite = null;
233: super.dispose();
234: }
235:
236: /**
237: * {@inheritDoc}
238: *
239: * @see org.eclipse.emfforms.spi.core.services.view.RootDomainModelChangeListener#notifyChange()
240: * @since 1.9
241: */
242: @Override
243: public void notifyChange() {
244: setTopElement();
245: }
246:
247: }