Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.utils.ui / src / org / simantics / utils / ui / jface / ActiveSelectionProvider.java

diff --git a/bundles/org.simantics.utils.ui/src/org/simantics/utils/ui/jface/ActiveSelectionProvider.java b/bundles/org.simantics.utils.ui/src/org/simantics/utils/ui/jface/ActiveSelectionProvider.java
new file mode 100644 (file)
index 0000000..eefa5e2
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+++ b/bundles/org.simantics.utils.ui/src/org/simantics/utils/ui/jface/ActiveSelectionProvider.java
@@ -0,0 +1,51 @@
+/*******************************************************************************\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.utils.ui.jface;\r
+\r
+import org.eclipse.jface.viewers.ISelection;\r
+import org.eclipse.jface.viewers.ISelectionProvider;\r
+\r
+/**\r
+ * A base implementation of ISelectionProvider that fires selection events on\r
+ * {@link #setSelection(ISelection)} <strong>only if</strong> the selection\r
+ * differs from the previous selection.\r
+ * \r
+ * <p>\r
+ * Contains an empty StructuredSelection by default. This version provides an\r
+ * implementation that by default notifies of all selection changes that\r
+ * actually changed the selection contents.\r
+ * </p>\r
+ * \r
+ * @author Tuukka Lehtonen\r
+ */\r
+public class ActiveSelectionProvider extends BaseSelectionProvider {\r
+\r
+    /**\r
+     * Create new ActiveSelectionProvider. Selection change notifications will\r
+     * run synchronously in the thread that invoked\r
+     * {@link ISelectionProvider#setSelection(ISelection)}.\r
+     */\r
+    public ActiveSelectionProvider() {\r
+        super();\r
+    }\r
+\r
+    /**\r
+     * Overrides default {@link BaseSelectionProvider#setSelection(ISelection)}\r
+     * behaviour with the behaviour of\r
+     * {@link BaseSelectionProvider#setAndFireNonEqualSelection(ISelection)}.\r
+     */\r
+    @Override\r
+    public void setSelection(ISelection selection) {\r
+        super.setAndFireNonEqualSelection(selection);\r
+    }\r
+\r
+}\r