connect(_header, SIGNAL(signals_moved()),
this, SLOT(on_signals_moved()));
+ connect(_header, SIGNAL(selection_changed()),
+ _ruler, SLOT(clear_selection()));
+ connect(_ruler, SIGNAL(selection_changed()),
+ _header, SLOT(clear_selection()));
+
setViewportMargins(LabelMarginWidth, RulerHeight, 0, 0);
setViewport(_viewport);