-/*******************************************************************************\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
-/*\r
- * 23.8.2006\r
- */\r
-package org.simantics.utils.ui.jface;\r
-\r
-import org.eclipse.core.runtime.ListenerList;\r
-import org.eclipse.jface.viewers.ISelection;\r
-import org.eclipse.jface.viewers.ISelectionChangedListener;\r
-import org.eclipse.jface.viewers.ISelectionProvider;\r
-import org.eclipse.jface.viewers.SelectionChangedEvent;\r
-import org.eclipse.jface.viewers.StructuredSelection;\r
-\r
-/**\r
- * BaseSelectionProvider is a base implementation ISelectionProvider -interface.\r
- * <p>\r
- * Usage: 1) instantiate 2) call {@link #setAndFireSelection(ISelection)} to\r
- * send a selection event\r
- * \r
- * <p>\r
- * Contains an empty StructuredSelection by default.\r
- * {@link #setSelection(ISelection)} by default will not notify\r
- * {@link ISelectionChangedListener}s of changes in the selection.\r
- * </p>\r
- * \r
- * @author Toni Kalajainen\r
- * \r
- * @see ActiveSelectionProvider\r
- */\r
-public class BaseSelectionProvider implements ISelectionProvider {\r
-\r
- protected ListenerList selectionListeners = new ListenerList();\r
-\r
- protected ISelection selection = StructuredSelection.EMPTY;\r
-\r
- /**\r
- * Create new BaseSelectionProvider. Selection change notifications will run\r
- * synchronously in the thread that invoked\r
- * {@link ISelectionProvider#setSelection(ISelection)}.\r
- */\r
- public BaseSelectionProvider() {\r
- }\r
-\r
- public void addSelectionChangedListener(ISelectionChangedListener listener) {\r
- selectionListeners.add(listener);\r
- }\r
-\r
- public ISelection getSelection() {\r
- return selection;\r
- }\r
-\r
- public void removeSelectionChangedListener(ISelectionChangedListener listener) {\r
- selectionListeners.remove(listener);\r
- }\r
-\r
- public void setSelection(ISelection selection) {\r
- setSelectionWithoutFiring(selection);\r
- }\r
-\r
- protected Object[] getListeners() {\r
- return selectionListeners.getListeners();\r
- }\r
-\r
- /**\r
- * Notify other UIs that selection has changed\r
- * @param selection new selection\r
- */\r
- public void fireSelection(ISelection selection) {\r
- if (selection == null)\r
- return;\r
- SelectionChangedEvent e = new SelectionChangedEvent(BaseSelectionProvider.this, selection);\r
- for (Object l : getListeners())\r
- ((ISelectionChangedListener) l).selectionChanged(e);\r
- }\r
-\r
- public void setSelectionWithoutFiring(ISelection selection) {\r
- this.selection = selection;\r
- }\r
-\r
-\r
- /**\r
- * Sets a new selection and always fires a SelectionChangedEvent about it.\r
- * \r
- * @param selection the new selection\r
- */\r
- public void setAndFireSelection(ISelection selection) {\r
- setSelection(selection);\r
- fireSelection(selection);\r
- }\r
-\r
- /**\r
- * Sets the new selection for this provider and fires all selection change\r
- * listeners if the specified selection differs from the current selection.\r
- * If the selection is either the same object or considered equal to the\r
- * current selection, the listeners are not fired.\r
- * \r
- * @param selection the new selection\r
- */\r
- public void setAndFireNonEqualSelection(ISelection selection) {\r
- ISelection old = getSelection();\r
- if (selection == old)\r
- return;\r
-\r
- this.selection = selection;\r
- if (selection != null && !selection.equals(old))\r
- fireSelection(selection);\r
- }\r
-\r
- public boolean selectionEquals(ISelection s) {\r
- if (s == selection)\r
- return true;\r
- if (s == null)\r
- // Old selection had to be non-null\r
- return true;\r
- return s.equals(selection);\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
+ *******************************************************************************/
+/*
+ * 23.8.2006
+ */
+package org.simantics.utils.ui.jface;
+
+import org.eclipse.core.runtime.ListenerList;
+import org.eclipse.jface.viewers.ISelection;
+import org.eclipse.jface.viewers.ISelectionChangedListener;
+import org.eclipse.jface.viewers.ISelectionProvider;
+import org.eclipse.jface.viewers.SelectionChangedEvent;
+import org.eclipse.jface.viewers.StructuredSelection;
+
+/**
+ * BaseSelectionProvider is a base implementation ISelectionProvider -interface.
+ * <p>
+ * Usage: 1) instantiate 2) call {@link #setAndFireSelection(ISelection)} to
+ * send a selection event
+ *
+ * <p>
+ * Contains an empty StructuredSelection by default.
+ * {@link #setSelection(ISelection)} by default will not notify
+ * {@link ISelectionChangedListener}s of changes in the selection.
+ * </p>
+ *
+ * @author Toni Kalajainen
+ *
+ * @see ActiveSelectionProvider
+ */
+public class BaseSelectionProvider implements ISelectionProvider {
+
+ protected ListenerList selectionListeners = new ListenerList();
+
+ protected ISelection selection = StructuredSelection.EMPTY;
+
+ /**
+ * Create new BaseSelectionProvider. Selection change notifications will run
+ * synchronously in the thread that invoked
+ * {@link ISelectionProvider#setSelection(ISelection)}.
+ */
+ public BaseSelectionProvider() {
+ }
+
+ public void addSelectionChangedListener(ISelectionChangedListener listener) {
+ selectionListeners.add(listener);
+ }
+
+ public ISelection getSelection() {
+ return selection;
+ }
+
+ public void removeSelectionChangedListener(ISelectionChangedListener listener) {
+ selectionListeners.remove(listener);
+ }
+
+ public void setSelection(ISelection selection) {
+ setSelectionWithoutFiring(selection);
+ }
+
+ protected Object[] getListeners() {
+ return selectionListeners.getListeners();
+ }
+
+ /**
+ * Notify other UIs that selection has changed
+ * @param selection new selection
+ */
+ public void fireSelection(ISelection selection) {
+ if (selection == null)
+ return;
+ SelectionChangedEvent e = new SelectionChangedEvent(BaseSelectionProvider.this, selection);
+ for (Object l : getListeners())
+ ((ISelectionChangedListener) l).selectionChanged(e);
+ }
+
+ public void setSelectionWithoutFiring(ISelection selection) {
+ this.selection = selection;
+ }
+
+
+ /**
+ * Sets a new selection and always fires a SelectionChangedEvent about it.
+ *
+ * @param selection the new selection
+ */
+ public void setAndFireSelection(ISelection selection) {
+ setSelection(selection);
+ fireSelection(selection);
+ }
+
+ /**
+ * Sets the new selection for this provider and fires all selection change
+ * listeners if the specified selection differs from the current selection.
+ * If the selection is either the same object or considered equal to the
+ * current selection, the listeners are not fired.
+ *
+ * @param selection the new selection
+ */
+ public void setAndFireNonEqualSelection(ISelection selection) {
+ ISelection old = getSelection();
+ if (selection == old)
+ return;
+
+ this.selection = selection;
+ if (selection != null && !selection.equals(old))
+ fireSelection(selection);
+ }
+
+ public boolean selectionEquals(ISelection s) {
+ if (s == selection)
+ return true;
+ if (s == null)
+ // Old selection had to be non-null
+ return true;
+ return s.equals(selection);
+ }
+
+}
Code Review / simantics / platform.git / blobdiff