Use identifiers for fixed conversion preset values

[pulseview.git] / pv / data / signalbase.hpp

diff --git a/pv/data/signalbase.hpp b/pv/data/signalbase.hpp
index 32085a43b929a68e5223019eb04ec94e81e3e88f..1675ed0abefea1c9c94ec151e4f3705d339646e4 100644 (file)
--- a/pv/data/signalbase.hpp
+++ b/pv/data/signalbase.hpp
@@ -73,6 +73,16 @@ public:
                A2LConversionBySchmittTrigger = 2
        };
 
+       /**
+        * Conversion presets range from -1 to n, where 1..n are dependent on
+        * the conversion these presets apply to. -1 and 0 have fixed meanings,
+        * however.
+        */
+       enum ConversionPreset {
+               NoPreset = -1,     ///< Conversion uses custom values
+               DynamicPreset = 0  ///< Conversion uses calculated values
+       };
+
 private:
        static const int ColourBGAlpha;
        static const uint64_t ConversionBlockSize;
@@ -227,7 +237,7 @@ public:
         * @return the ID of the currently used conversion preset. -1 if no preset
         *         is used. In that case, a user setting is used instead.
         */
-       int get_current_conversion_preset() const;
+       ConversionPreset get_current_conversion_preset() const;
 
        /**
         * Sets the conversion preset to be used.
@@ -236,7 +246,7 @@ public:
         *
         * @param id the id of the preset to use
         */
-       void set_conversion_preset(int id);
+       void set_conversion_preset(ConversionPreset id);
 
 #ifdef ENABLE_DECODE
        bool is_decode_signal() const;