Use a type with a greater resolution to represent time values

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

diff --git a/pv/view/view.hpp b/pv/view/view.hpp
index 95a02084dca1d95cafa28949b24dccd5441d4930..12527b656d80943f2abb8d69039d33729d45adc0 100644 (file)
--- a/pv/view/view.hpp
+++ b/pv/view/view.hpp
@@ -66,8 +66,8 @@ private:
        };
 
 private:
-       static const double MaxScale;
-       static const double MinScale;
+       static const pv::util::Timestamp MaxScale;
+       static const pv::util::Timestamp MinScale;
 
        static const int MaxScrollValue;
        static const int MaxViewAutoUpdateRate;
@@ -108,7 +108,7 @@ public:
         * Returns the time offset of the left edge of the view in
         * seconds.
         */
-       double offset() const;
+       const pv::util::Timestamp& offset() const;
 
        /**
         * Returns the vertical scroll offset.
@@ -125,6 +125,11 @@ 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.
         */
@@ -152,12 +157,12 @@ public:
         * @param scale The new view scale in seconds per pixel.
         * @param offset The view time offset in seconds.
         */
-       void set_scale_offset(double scale, double offset);
+       void set_scale_offset(double scale, const pv::util::Timestamp& offset);
 
        std::set< std::shared_ptr<pv::data::SignalData> >
                get_visible_data() const;
 
-       std::pair<double, double> get_time_extents() const;
+       std::pair<pv::util::Timestamp, pv::util::Timestamp> get_time_extents() const;
 
        /**
         * Enables or disables sticky scrolling, i.e. the view always shows
@@ -188,7 +193,7 @@ public:
        /**
         * Adds a new flag at a specified time.
         */
-       void add_flag(double time);
+       void add_flag(const pv::util::Timestamp& time);
 
        /**
         * Removes a flag from the list.
@@ -218,7 +223,7 @@ Q_SIGNALS:
        void always_zoom_to_fit_changed(bool state);
 
 private:
-       void get_scroll_layout(double &length, double &offset) const;
+       void get_scroll_layout(double &length, pv::util::Timestamp &offset) const;
 
        /**
         * Simultaneously sets the zoom and offset.
@@ -306,7 +311,7 @@ private:
        double scale_;
 
        /// The view time offset in seconds.
-       double offset_;
+       pv::util::Timestamp offset_;
 
        bool updating_scroll_;
        bool sticky_scrolling_;
@@ -315,6 +320,7 @@ private:
 
        double tick_period_;
        unsigned int tick_prefix_;
+       unsigned int tick_precision_;
        util::TimeUnit time_unit_;
 
        bool show_cursors_;