#pragma once for our headers plus drive-by formatting

rtgui/lensgeom.h

@@ -16,14 +16,16 @@
  *  You should have received a copy of the GNU General Public License
  *  along with RawTherapee.  If not, see <https://www.gnu.org/licenses/>.
  */
-#ifndef _LENSGEOM_H_
-#define _LENSGEOM_H_
+#pragma once
 
 #include <gtkmm.h>
-#include "toolpanel.h"
-#include "lensgeomlistener.h"
 
-class LensGeometry : public ToolParamBlock, public FoldableToolPanel
+#include "lensgeomlistener.h"
+#include "toolpanel.h"
+
+class LensGeometry :
+    public ToolParamBlock,
+    public FoldableToolPanel
 {
 
 protected:
@@ -58,5 +60,3 @@ public:
 private:
     IdleRegister idle_register;
 };
-
-#endif