Avoids Locallab spot to disapear when mouse right-clicking

This commit also avoids Locallab spot to disapear when adding lockable
color picker, pressing toolbar "hand" button, pressing h/H key. However,
if another tool button (ex: resizing tool) is pressed, this action is
considered

rtgui/toolbar.h

@@ -64,6 +64,7 @@ protected:
     ToolMode current;
     bool allowNoTool;
     bool editingMode;  // true if the cursor is being used to remotely edit tool's values
+    bool blockEdit; // true if edit tool shoudn't be disabled when pressing hand button or h/H key
     sigc::connection  handConn;
     sigc::connection  wbConn;
     sigc::connection  cpConn;
@@ -98,6 +99,11 @@ public:
 
     bool handleShortcutKey (GdkEventKey* event);
     void setBatchMode();
+
+    void blockEditDeactivation(bool cond = true)
+    {
+        blockEdit = cond;
+    }
 };
 
 #endif