-/*******************************************************************************\r
- * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
- * in Industry THTH ry.\r
- * All rights reserved. This program and the accompanying materials\r
- * are made available under the terms of the Eclipse Public License v1.0\r
- * which accompanies this distribution, and is available at\r
- * http://www.eclipse.org/legal/epl-v10.html\r
- *\r
- * Contributors:\r
- * VTT Technical Research Centre of Finland - initial API and implementation\r
- *******************************************************************************/\r
-package org.simantics.ui.workbench;\r
-\r
-import org.eclipse.swt.widgets.Composite;\r
-import org.simantics.db.ReadGraph;\r
-import org.simantics.db.Resource;\r
-import org.simantics.db.event.ChangeEvent;\r
-import org.simantics.db.exception.DatabaseException;\r
-import org.simantics.layer0.Layer0;\r
-import org.simantics.utils.ui.ErrorLogger;\r
-import org.simantics.utils.ui.workbench.WorkbenchUtils;\r
-\r
-/**\r
- * This class inherits the Graph access setup behavior from\r
- * GraphAccessViewPart and in addition assumes that the view receives a\r
- * Resource ID as a parameter in the secondary ID of the view part.\r
- * \r
- * <p>\r
- * To use this class all you need to do is call super.createPartControl in your\r
- * own createPartControl implementation. This will make sure a {@link Graph}\r
- * will be available directly after that for initializing the UI and its\r
- * contents.\r
- * </p>\r
- * \r
- * <p>\r
- * To open a ResourceInputViewPart use:\r
- * {@link ResourceViewPartUtils#activateViewForResource(String, org.simantics.db.Session, Resource)}</code>\r
- * which should give the view the specified resource id as its secondary id.\r
- * </p>\r
- * \r
- * @author Tuukka Lehtonen\r
- */\r
-public abstract class ResourceInputViewPart extends GraphAccessViewPart {\r
-\r
- private static final String NO_NAME = "(no name)";\r
-\r
- private static final String MULTIPLE_NAMES = "(multiple names)";\r
-\r
-\r
- private ResourceInput mainInput;\r
-\r
- private Resource inputResource;\r
-\r
- private String inputName = NO_NAME;\r
-\r
-\r
- //----------------------------------------------------------------------\r
- // Getters\r
-\r
- public Resource getInputResource() {\r
- return inputResource;\r
- }\r
-\r
- public String getInputName() {\r
- return inputName;\r
- }\r
-\r
-\r
- //----------------------------------------------------------------------\r
- // Event handlers & initialization\r
-\r
- /**\r
- * Must be called after initializeGraph.\r
- */\r
- private void initializeInput() {\r
- // Get the main input from the view's secondary ID.\r
- String secondaryId = getViewSite().getSecondaryId();\r
- if (secondaryId == null)\r
- // No input given!\r
- return;\r
-\r
- mainInput = ResourceInput.unmarshall(secondaryId);\r
- try {\r
- inputResource = mainInput.toResource(getSession());\r
- } catch (DatabaseException e) {\r
- ErrorLogger.defaultLogError(e);\r
- }\r
- }\r
-\r
-\r
- /**\r
- * Initializes graph data access and view resource ID input structures.\r
- * \r
- * <p>\r
- * This method is automatically called by\r
- * {@link #createPartControl(Composite)}. Override to perform own\r
- * graph-related initializations but be absolutely sure to call super the\r
- * first thing. Clients must not directly call this method.\r
- * </p>\r
- */\r
- @Override\r
- protected void initialize() {\r
- super.initialize();\r
- initializeInput();\r
- }\r
-\r
- /**\r
- * @return <code>true</code> if the input resource still exists, i.e.\r
- * there are triples with the subject of the input resource.\r
- */\r
- protected boolean inputExists(ReadGraph g) throws DatabaseException {\r
- if (inputResource == null)\r
- return false;\r
- return g.hasStatement(inputResource);\r
- }\r
-\r
- @Override\r
- protected void cleanup() {\r
- inputResource = null;\r
- super.cleanup();\r
- }\r
-\r
-\r
- /**\r
- * @return the main input structure of this view which identifies a single\r
- * input resource\r
- */\r
- public ResourceInput getMainInput() {\r
- return mainInput;\r
- }\r
-\r
-\r
- //----------------------------------------------------------------------\r
- // Override these if necessary:\r
-\r
- @Override\r
- protected String getTitleText() {\r
- return getInputName();\r
- }\r
-\r
- @Override\r
- protected String getTitleTooltip() {\r
- return getInputName();\r
- }\r
-\r
-\r
- /**\r
- * Extends {@link #update(GraphChangeEvent)} to handle disappearing inputs\r
- * by hiding the view.\r
- * \r
- * @param event\r
- * the received change event\r
- */\r
- @Override\r
- protected void update(ChangeEvent event) throws DatabaseException {\r
- ReadGraph g = event.getGraph();\r
-\r
- // If the input no longer exists, the editor should be closed since the\r
- // situation is analogous to having an IEditorPart input, such as a\r
- // file, deleted suddenly.\r
- if (!inputExists(g)) {\r
- WorkbenchUtils.hideView(getViewSite().getWorkbenchWindow(), this);\r
- return;\r
- }\r
-\r
- updateModelCache(g);\r
- reload(g);\r
- }\r
-\r
- private void updateModelCache(ReadGraph graph) {\r
- try {\r
- Layer0 L0 = Layer0.getInstance(graph);\r
- inputName = graph.getPossibleRelatedValue(inputResource, L0.HasName);\r
- if (inputName == null)\r
- inputName = NO_NAME;\r
- } catch (DatabaseException e) {\r
- inputName = MULTIPLE_NAMES;\r
- }\r
- }\r
-\r
-}\r
+/*******************************************************************************
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * 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:
+ * VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+package org.simantics.ui.workbench;
+
+import org.eclipse.swt.widgets.Composite;
+import org.simantics.db.ReadGraph;
+import org.simantics.db.Resource;
+import org.simantics.db.event.ChangeEvent;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.layer0.Layer0;
+import org.simantics.utils.ui.ErrorLogger;
+import org.simantics.utils.ui.workbench.WorkbenchUtils;
+
+/**
+ * This class inherits the Graph access setup behavior from
+ * GraphAccessViewPart and in addition assumes that the view receives a
+ * Resource ID as a parameter in the secondary ID of the view part.
+ *
+ * <p>
+ * To use this class all you need to do is call super.createPartControl in your
+ * own createPartControl implementation. This will make sure a {@link Graph}
+ * will be available directly after that for initializing the UI and its
+ * contents.
+ * </p>
+ *
+ * <p>
+ * To open a ResourceInputViewPart use:
+ * {@link ResourceViewPartUtils#activateViewForResource(String, org.simantics.db.Session, Resource)}</code>
+ * which should give the view the specified resource id as its secondary id.
+ * </p>
+ *
+ * @author Tuukka Lehtonen
+ */
+public abstract class ResourceInputViewPart extends GraphAccessViewPart {
+
+ private static final String NO_NAME = "(no name)";
+
+ private static final String MULTIPLE_NAMES = "(multiple names)";
+
+
+ private ResourceInput mainInput;
+
+ private Resource inputResource;
+
+ private String inputName = NO_NAME;
+
+
+ //----------------------------------------------------------------------
+ // Getters
+
+ public Resource getInputResource() {
+ return inputResource;
+ }
+
+ public String getInputName() {
+ return inputName;
+ }
+
+
+ //----------------------------------------------------------------------
+ // Event handlers & initialization
+
+ /**
+ * Must be called after initializeGraph.
+ */
+ private void initializeInput() {
+ // Get the main input from the view's secondary ID.
+ String secondaryId = getViewSite().getSecondaryId();
+ if (secondaryId == null)
+ // No input given!
+ return;
+
+ mainInput = ResourceInput.unmarshall(secondaryId);
+ try {
+ inputResource = mainInput.toResource(getSession());
+ } catch (DatabaseException e) {
+ ErrorLogger.defaultLogError(e);
+ }
+ }
+
+
+ /**
+ * Initializes graph data access and view resource ID input structures.
+ *
+ * <p>
+ * This method is automatically called by
+ * {@link #createPartControl(Composite)}. Override to perform own
+ * graph-related initializations but be absolutely sure to call super the
+ * first thing. Clients must not directly call this method.
+ * </p>
+ */
+ @Override
+ protected void initialize() {
+ super.initialize();
+ initializeInput();
+ }
+
+ /**
+ * @return <code>true</code> if the input resource still exists, i.e.
+ * there are triples with the subject of the input resource.
+ */
+ protected boolean inputExists(ReadGraph g) throws DatabaseException {
+ if (inputResource == null)
+ return false;
+ return g.hasStatement(inputResource);
+ }
+
+ @Override
+ protected void cleanup() {
+ inputResource = null;
+ super.cleanup();
+ }
+
+
+ /**
+ * @return the main input structure of this view which identifies a single
+ * input resource
+ */
+ public ResourceInput getMainInput() {
+ return mainInput;
+ }
+
+
+ //----------------------------------------------------------------------
+ // Override these if necessary:
+
+ @Override
+ protected String getTitleText() {
+ return getInputName();
+ }
+
+ @Override
+ protected String getTitleTooltip() {
+ return getInputName();
+ }
+
+
+ /**
+ * Extends {@link #update(GraphChangeEvent)} to handle disappearing inputs
+ * by hiding the view.
+ *
+ * @param event
+ * the received change event
+ */
+ @Override
+ protected void update(ChangeEvent event) throws DatabaseException {
+ ReadGraph g = event.getGraph();
+
+ // If the input no longer exists, the editor should be closed since the
+ // situation is analogous to having an IEditorPart input, such as a
+ // file, deleted suddenly.
+ if (!inputExists(g)) {
+ WorkbenchUtils.hideView(getViewSite().getWorkbenchWindow(), this);
+ return;
+ }
+
+ updateModelCache(g);
+ reload(g);
+ }
+
+ private void updateModelCache(ReadGraph graph) {
+ try {
+ Layer0 L0 = Layer0.getInstance(graph);
+ inputName = graph.getPossibleRelatedValue(inputResource, L0.HasName);
+ if (inputName == null)
+ inputName = NO_NAME;
+ } catch (DatabaseException e) {
+ inputName = MULTIPLE_NAMES;
+ }
+ }
+
+}
Code Review / simantics / platform.git / blobdiff