Fix #770 by adding a vertical hover line and a setting for it

[pulseview.git] / pv / views / trace / trace.hpp

diff --git a/pv/views/trace/trace.hpp b/pv/views/trace/trace.hpp
index 410d82cd14e8c9121e9a758024dee4c5d540204f..758b2e97c46e0142238b842e8b3d42c013fda747 100644 (file)
--- a/pv/views/trace/trace.hpp
+++ b/pv/views/trace/trace.hpp
@@ -30,6 +30,7 @@
 
 #include "tracetreeitem.hpp"
 
+#include <pv/globalsettings.hpp>
 #include "pv/data/signalbase.hpp"
 
 using std::shared_ptr;
@@ -59,7 +60,7 @@ namespace trace {
  * For this reason, Trace is more generic and contains properties and helpers
  * that benefit any kind of time series items.
  */
-class Trace : public TraceTreeItem
+class Trace : public TraceTreeItem, public GlobalSettingsInterface
 {
        Q_OBJECT
 
@@ -105,6 +106,8 @@ public:
         */
        virtual void set_segment_display_mode(SegmentDisplayMode mode);
 
+       virtual void on_setting_changed(const QString &key, const QVariant &value);
+
        /**
         * Paints the signal label.
         * @param p the QPainter to paint into.
@@ -128,6 +131,8 @@ public:
 
        int get_current_segment() const;
 
+       virtual void hover_point_changed(const QPoint &hp);
+
 protected:
        /**
         * Paints the background layer of the signal with a QPainter.
@@ -144,6 +149,12 @@ protected:
         */
        void paint_axis(QPainter &p, ViewItemPaintParams &pp, int y);
 
+       /**
+        * Draw a hover marker under the cursor position.
+        * @param p The painter to draw into.
+        */
+       void paint_hover_marker(QPainter &p);
+
        void add_color_option(QWidget *parent, QFormLayout *form);
 
        void create_popup_form();
@@ -167,6 +178,7 @@ protected:
        QPen axis_pen_;
 
        SegmentDisplayMode segment_display_mode_;
+       bool show_hover_marker_;
 
        /// The ID of the currently displayed segment
        int current_segment_;