Allow labels to be set to empty values

[pulseview.git] / pv / view / ruler.h

diff --git a/pv/view/ruler.h b/pv/view/ruler.h
index 1381502d3de48f7c8c64168110e0f7e34a7d0236..f40f8255379166a06084c82c5c906783fb563346 100644 (file)
--- a/pv/view/ruler.h
+++ b/pv/view/ruler.h
@@ -26,6 +26,7 @@
 namespace pv {
 namespace view {
 
+class TimeMarker;
 class View;
 
 class Ruler : public QWidget
@@ -44,11 +45,18 @@ private:
 public:
        Ruler(View &parent);
 
+       static QString format_time(double t, unsigned int prefix,
+               unsigned precision = 0);
+
 private:
        void paintEvent(QPaintEvent *event);
 
+       void mouseMoveEvent(QMouseEvent *e);
+       void mousePressEvent(QMouseEvent *e);
+       void mouseReleaseEvent(QMouseEvent *);
+
 private:
-       void draw_cursors(QPainter &p);
+       void draw_cursors(QPainter &p, unsigned int prefix);
 
        /**
         * Draw a hover arrow under the cursor position.
@@ -60,6 +68,8 @@ private slots:
 
 private:
        View &_view;
+
+       TimeMarker *_grabbed_marker;
 };
 
 } // namespace view