AnalogSignal: Apply scale handle dragging

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

diff --git a/pv/view/analogsignal.hpp b/pv/view/analogsignal.hpp
index 58c2d3cb7b622e419ce1fcb19d83ed5edf7480fb..aa53f9ddb25ab49c500a93c56f6c4660c879eab5 100644 (file)
--- a/pv/view/analogsignal.hpp
+++ b/pv/view/analogsignal.hpp
@@ -70,6 +70,11 @@ public:
         */
        void scale_handle_dragged(int offset);
 
+       /**
+        * @copydoc pv::view::Signal::signal_scale_handle_drag_release()
+        */
+       void scale_handle_drag_release();
+
        /**
         * Paints the background layer of the signal with a QPainter
         * @param p the QPainter to paint into.
@@ -95,9 +100,16 @@ private:
                int y, int left, const int64_t start, const int64_t end,
                const double pixels_offset, const double samples_per_pixel);
 
+       /**
+        * Computes the scale factor from the scale index.
+        */
+       float scale() const;
+
 private:
        std::shared_ptr<pv::data::Analog> data_;
-       float scale_;
+
+       int scale_index_;
+       int scale_index_drag_offset_;
 };
 
 } // namespace view