View/Ruler: Calculate and use tick precision

[pulseview.git] / pv / view / view.hpp

diff --git a/pv/view/view.hpp b/pv/view/view.hpp
index b29fb157dce383eec55535fcd187ecf104eaa9b7..ff7795c5a68dbd55b92204d7236817e2dce35182 100644 (file)
--- a/pv/view/view.hpp
+++ b/pv/view/view.hpp
@@ -34,6 +34,7 @@
 #include <QTimer>
 
 #include <pv/data/signaldata.hpp>
+#include <pv/util.hpp>
 
 #include "cursorpair.hpp"
 #include "flag.hpp"
@@ -124,11 +125,21 @@ public:
         */
        unsigned int tick_prefix() const;
 
+       /**
+        * Returns the number of fractional digits shown for the time markings.
+        */
+       unsigned int tick_precision() const;
+
        /**
         * Returns period of the graticule time markings.
         */
        double tick_period() const;
 
+       /**
+        * Returns the unit of time currently used.
+        */
+       util::TimeUnit time_unit() const;
+
        /**
         * Returns the number of nested parents that this row item owner has.
         */
@@ -137,7 +148,7 @@ public:
        void zoom(double steps);
        void zoom(double steps, int offset);
 
-       void zoom_fit();
+       void zoom_fit(bool gui_state);
 
        void zoom_one_to_one();
 
@@ -209,6 +220,8 @@ Q_SIGNALS:
 
        void sticky_scrolling_changed(bool state);
 
+       void always_zoom_to_fit_changed(bool state);
+
 private:
        void get_scroll_layout(double &length, double &offset) const;
 
@@ -257,6 +270,8 @@ private:
                        std::shared_ptr<Signal> > &signal_map,
                std::set< std::shared_ptr<Trace> > &add_list);
 
+       void determine_time_unit();
+
 private:
        bool eventFilter(QObject *object, QEvent *event);
 
@@ -276,6 +291,7 @@ private Q_SLOTS:
        void v_scroll_value_changed();
 
        void signals_changed();
+       void capture_state_updated(int state);
        void data_updated();
 
        void perform_delayed_view_update();
@@ -299,10 +315,13 @@ private:
 
        bool updating_scroll_;
        bool sticky_scrolling_;
+       bool always_zoom_to_fit_;
        QTimer delayed_view_updater_;
 
        double tick_period_;
        unsigned int tick_prefix_;
+       unsigned int tick_precision_;
+       util::TimeUnit time_unit_;
 
        bool show_cursors_;
        std::shared_ptr<CursorPair> cursors_;