# HG changeset patch
# User Peter Hofer <peter.hofer@jku.at>
# Date 1310383911 -7200
# Node ID ca968e2cf7cbb0aca1cbdcba338c9ae511018652
# Parent  8f51f58506522b8de466c72bcd5b99ba58f23a88
IdealGraphVisualizer: select blocks in the control flow graph by double-clicking them, thus allowing to move blocks without selecting them and changing the selecting in the node graph

diff -r 8f51f5850652 -r ca968e2cf7cb src/share/tools/IdealGraphVisualizer/ControlFlow/src/com/sun/hotspot/igv/controlflow/ControlFlowScene.java
--- a/src/share/tools/IdealGraphVisualizer/ControlFlow/src/com/sun/hotspot/igv/controlflow/ControlFlowScene.java	Sun Jul 10 11:21:37 2011 +0200
+++ b/src/share/tools/IdealGraphVisualizer/ControlFlow/src/com/sun/hotspot/igv/controlflow/ControlFlowScene.java	Mon Jul 11 13:31:51 2011 +0200
@@ -65,7 +65,7 @@
     private LayerWidget mainLayer;
     private LayerWidget selectLayer;
     private WidgetAction hoverAction = this.createWidgetHoverAction();
-    private WidgetAction selectAction = ActionFactory.createSelectAction(this);
+    private WidgetAction selectAction = new DoubleClickSelectAction(this);
     private WidgetAction moveAction = ActionFactory.createMoveAction(null, this);
 
     public ControlFlowScene() {
@@ -196,15 +196,19 @@
     }
 
     public void setNewLocation(Widget widget, Point location) {
-        Point originalLocation = getOriginalLocation(widget);
-        int xOffset = location.x - originalLocation.x;
-        int yOffset = location.y - originalLocation.y;
-        for (Widget w : this.selection) {
-            Point p = new Point(w.getPreferredLocation());
-            p.translate(xOffset, yOffset);
-            w.setPreferredLocation(p);
+        if (selection.contains(widget)) {
+            // move entire selection
+            Point originalLocation = getOriginalLocation(widget);
+            int xOffset = location.x - originalLocation.x;
+            int yOffset = location.y - originalLocation.y;
+            for (Widget w : selection) {
+                Point p = new Point(w.getPreferredLocation());
+                p.translate(xOffset, yOffset);
+                w.setPreferredLocation(p);
+            }
+        } else {
+            widget.setPreferredLocation(location);
         }
-
     }
 
     public Widget createSelectionWidget() {
diff -r 8f51f5850652 -r ca968e2cf7cb src/share/tools/IdealGraphVisualizer/ControlFlow/src/com/sun/hotspot/igv/controlflow/DoubleClickSelectAction.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/share/tools/IdealGraphVisualizer/ControlFlow/src/com/sun/hotspot/igv/controlflow/DoubleClickSelectAction.java	Mon Jul 11 13:31:51 2011 +0200
@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+package com.sun.hotspot.igv.controlflow;
+
+import java.awt.Point;
+import java.awt.event.MouseEvent;
+import org.netbeans.api.visual.action.SelectProvider;
+import org.netbeans.api.visual.action.WidgetAction;
+import org.netbeans.api.visual.widget.Widget;
+
+/**
+ * Selection action that acts on double-click only. Does not support aiming.
+ * 
+ * @author Peter Hofer
+ */
+public class DoubleClickSelectAction extends WidgetAction.LockedAdapter {
+
+    private final SelectProvider provider;
+
+    public DoubleClickSelectAction(SelectProvider provider) {
+        this.provider = provider;
+    }
+
+    protected boolean isLocked() {
+        return false;
+    }
+
+    @Override
+    public State mousePressed(Widget widget, WidgetMouseEvent event) {
+        if (event.getClickCount() >= 2 && (event.getButton() == MouseEvent.BUTTON1 || event.getButton() == MouseEvent.BUTTON2)) {
+            boolean invert = (event.getModifiersEx() & MouseEvent.CTRL_DOWN_MASK) != 0;
+            Point point = event.getPoint();
+            if (provider.isSelectionAllowed(widget, point, invert)) {
+                provider.select(widget, point, invert);
+                return State.CHAIN_ONLY;
+            }
+        }
+        return State.REJECTED;
+    }
+}