diff base/RangeMapper.cpp @ 1203:932487fe515a 3.0-integration

Introduce labels in RangeMapper and use them in AudioDial, though only for tooltip at present. Make use of this for spectrogram magic -81dB/-Inf threshold. Also introduce static strings for inf/pi and use where appropriate.

--- a/base/RangeMapper.cpp	Fri Aug 05 15:05:02 2016 +0100
+++ b/base/RangeMapper.cpp	Fri Aug 05 17:48:52 2016 +0100
@@ -23,13 +23,15 @@
 
 LinearRangeMapper::LinearRangeMapper(int minpos, int maxpos,
 				     double minval, double maxval,
-                                     QString unit, bool inverted) :
+                                     QString unit, bool inverted,
+                                     std::map<int, QString> labels) :
     m_minpos(minpos),
     m_maxpos(maxpos),
     m_minval(minval),
     m_maxval(maxval),
     m_unit(unit),
-    m_inverted(inverted)
+    m_inverted(inverted),
+    m_labels(labels)
 {
     assert(m_maxval != m_minval);
     assert(m_maxpos != m_minpos);
@@ -74,6 +76,16 @@
     return value;
 }
 
+QString
+LinearRangeMapper::getLabel(int position) const
+{
+    if (m_labels.find(position) != m_labels.end()) {
+        return m_labels.at(position);
+    } else {
+        return "";
+    }
+}
+
 LogRangeMapper::LogRangeMapper(int minpos, int maxpos,
                                double minval, double maxval,
                                QString unit, bool inverted) :