Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.browsing.ui.swt / src / org / simantics / browsing / ui / swt / SingleClickStartEditMouseListener.java

diff --git a/bundles/org.simantics.browsing.ui.swt/src/org/simantics/browsing/ui/swt/SingleClickStartEditMouseListener.java b/bundles/org.simantics.browsing.ui.swt/src/org/simantics/browsing/ui/swt/SingleClickStartEditMouseListener.java
new file mode 100644 (file)
index 0000000..8d97721
--- /dev/null
+++ b/bundles/org.simantics.browsing.ui.swt/src/org/simantics/browsing/ui/swt/SingleClickStartEditMouseListener.java
@@ -0,0 +1,84 @@
+/*******************************************************************************\r
+ * Copyright (c) 2013 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
+ *     Semantum Oy - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.browsing.ui.swt;\r
+\r
+import org.eclipse.jface.viewers.IFilter;\r
+import org.eclipse.swt.events.MouseAdapter;\r
+import org.eclipse.swt.events.MouseEvent;\r
+import org.eclipse.swt.graphics.Point;\r
+import org.eclipse.swt.widgets.Tree;\r
+import org.eclipse.swt.widgets.TreeItem;\r
+import org.simantics.browsing.ui.Column;\r
+import org.simantics.browsing.ui.GraphExplorer;\r
+import org.simantics.browsing.ui.NodeContext;\r
+\r
+/**\r
+ * @author Tuukka Lehtonen\r
+ */\r
+public class SingleClickStartEditMouseListener extends MouseAdapter {\r
+\r
+    public static final IFilter BUTTON1_FIRST_DOWN_FILTER = new IFilter() {\r
+        @Override\r
+        public boolean select(Object toTest) {\r
+            MouseEvent e = (MouseEvent) toTest;\r
+            return e.button == 1 && e.count == 1;\r
+        }\r
+    }; \r
+\r
+    private GraphExplorer explorer;\r
+    private IFilter       eventFilter;\r
+    private Tree          tree;\r
+    private Column[]      columns;\r
+\r
+    public static SingleClickStartEditMouseListener attachWithSingleLeftDown(GraphExplorer explorer) {\r
+        return attachTo(explorer, BUTTON1_FIRST_DOWN_FILTER);\r
+    }\r
+\r
+    public static SingleClickStartEditMouseListener attachTo(GraphExplorer explorer, IFilter eventFilter) {\r
+        SingleClickStartEditMouseListener l = new SingleClickStartEditMouseListener(explorer, eventFilter);\r
+        explorer.addListener(l);\r
+        return l;\r
+    }\r
+\r
+    public SingleClickStartEditMouseListener(GraphExplorer explorer, IFilter eventFilter) {\r
+        if (explorer == null)\r
+            throw new NullPointerException("null explorer");\r
+\r
+        this.explorer = explorer;\r
+        this.eventFilter = eventFilter;\r
+        this.tree = (Tree) explorer.getControl();\r
+        this.columns = explorer.getColumns();\r
+    }\r
+\r
+    @Override\r
+    public void mouseDown(MouseEvent e) {\r
+        if (eventFilter != null && !eventFilter.select(e))\r
+            return;\r
+\r
+        Point point = new Point(e.x, e.y);\r
+        TreeItem item = tree.getItem(point);\r
+        if (item == null)\r
+            return;\r
+\r
+        NodeContext ctx = (NodeContext) item.getData();\r
+        if (ctx == null)\r
+            return;\r
+\r
+        int columnCount = tree.getColumnCount();\r
+        for (int i = 0; i < columnCount && i < columns.length; i++) {\r
+            if (!item.isDisposed() && item.getBounds(i).contains(point)) {\r
+                explorer.startEditing(ctx, columns[i].getKey());\r
+            }\r
+        }\r
+    }\r
+\r
+}
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