-/*******************************************************************************\r
- * Copyright (c) 2007, 2012 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.browsing.ui.swt.widgets.impl;\r
-\r
-import org.eclipse.jface.viewers.ISelection;\r
-import org.eclipse.swt.events.SelectionEvent;\r
-import org.eclipse.swt.events.SelectionListener;\r
-import org.simantics.db.WriteGraph;\r
-import org.simantics.db.common.request.WriteRequest;\r
-import org.simantics.db.exception.DatabaseException;\r
-import org.simantics.db.management.ISessionContext;\r
-import org.simantics.utils.ReflectionUtils;\r
-import org.simantics.utils.ui.ISelectionUtils;\r
-\r
-abstract public class SelectionListenerImpl<T> implements SelectionListener, Widget {\r
-\r
- private ISessionContext context;\r
- private Object lastInput = null;\r
- \r
- final private Class<?> clazz;\r
- \r
- public SelectionListenerImpl(ISessionContext context) {\r
- this.context = context;\r
- clazz = ReflectionUtils.getSingleParameterType(getClass());\r
- }\r
- \r
- @Override\r
- public void widgetDefaultSelected(SelectionEvent e) {\r
- widgetSelected(e);\r
- }\r
- \r
- @Override\r
- public void widgetSelected(SelectionEvent e) {\r
- \r
- final Object input = lastInput;\r
- \r
- try {\r
- @SuppressWarnings("unchecked")\r
- T single = (T) ISelectionUtils.filterSingleSelection((ISelection)input, clazz);\r
- beforeApply(single);\r
- \r
- context.getSession().syncRequest(new WriteRequest() {\r
-\r
- @SuppressWarnings("unchecked")\r
- @Override\r
- public void perform(WriteGraph graph) throws DatabaseException {\r
- graph.markUndoPoint();\r
- T single = (T) ISelectionUtils.filterSingleSelection((ISelection)input, clazz);\r
- apply(graph, single);\r
- }\r
- \r
- });\r
- } catch (DatabaseException e1) {\r
- e1.printStackTrace();\r
- }\r
- }\r
-\r
- @Override\r
- public void setInput(ISessionContext context, Object parameter) {\r
- this.context = context;\r
- lastInput = parameter;\r
- }\r
- \r
- public void beforeApply() {\r
- \r
- }\r
- \r
- public void beforeApply(T input) {\r
- beforeApply();\r
- }\r
-\r
- abstract public void apply(WriteGraph graph, T input) throws DatabaseException;\r
- \r
-}\r
+/*******************************************************************************
+ * Copyright (c) 2007, 2012 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.browsing.ui.swt.widgets.impl;
+
+import org.eclipse.jface.viewers.ISelection;
+import org.eclipse.swt.events.SelectionEvent;
+import org.eclipse.swt.events.SelectionListener;
+import org.simantics.db.WriteGraph;
+import org.simantics.db.common.request.WriteRequest;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.management.ISessionContext;
+import org.simantics.utils.ReflectionUtils;
+import org.simantics.utils.ui.ISelectionUtils;
+
+abstract public class SelectionListenerImpl<T> implements SelectionListener, Widget {
+
+ private ISessionContext context;
+ private Object lastInput = null;
+
+ final private Class<?> clazz;
+
+ public SelectionListenerImpl(ISessionContext context) {
+ this.context = context;
+ clazz = ReflectionUtils.getSingleParameterType(getClass());
+ }
+
+ @Override
+ public void widgetDefaultSelected(SelectionEvent e) {
+ widgetSelected(e);
+ }
+
+ @Override
+ public void widgetSelected(SelectionEvent e) {
+
+ final Object input = lastInput;
+
+ try {
+ @SuppressWarnings("unchecked")
+ T single = (T) ISelectionUtils.filterSingleSelection((ISelection)input, clazz);
+ beforeApply(single);
+
+ context.getSession().syncRequest(new WriteRequest() {
+
+ @SuppressWarnings("unchecked")
+ @Override
+ public void perform(WriteGraph graph) throws DatabaseException {
+ graph.markUndoPoint();
+ T single = (T) ISelectionUtils.filterSingleSelection((ISelection)input, clazz);
+ apply(graph, single);
+ }
+
+ });
+ } catch (DatabaseException e1) {
+ e1.printStackTrace();
+ }
+ }
+
+ @Override
+ public void setInput(ISessionContext context, Object parameter) {
+ this.context = context;
+ lastInput = parameter;
+ }
+
+ public void beforeApply() {
+
+ }
+
+ public void beforeApply(T input) {
+ beforeApply();
+ }
+
+ abstract public void apply(WriteGraph graph, T input) throws DatabaseException;
+
+}
Code Review / simantics / platform.git / blobdiff