comparison layer/WaveformLayer.cpp @ 1147:1badacff7ab2 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.

 
 #include "base/AudioLevel.h"
 #include "view/View.h"
 #include "base/Profiler.h"
 #include "base/RangeMapper.h"
+#include "base/Strings.h"
 
 #include "ColourDatabase.h"
 #include "PaintAssistant.h"
 
 #include <QPainter>

 {
     if (m_scale == LinearScale) {
 	return paint.fontMetrics().width("0.0") + 13;
     } else {
 	return std::max(paint.fontMetrics().width(tr("0dB")),
-			paint.fontMetrics().width(tr("-Inf"))) + 13;
+			paint.fontMetrics().width(Strings::minus_infinity)) + 13;
     }
 }
 
 void
 WaveformLayer::paintVerticalScale(LayerGeometryProvider *v, bool, QPainter &paint, QRect rect) const

             case MeterScale:
                 val = AudioLevel::dB_to_multiplier(meterdbs[i]) * gain;
 		text = QString("%1").arg(meterdbs[i]);
 		if (i == n) text = tr("0dB");
 		if (i == 0) {
-                    text = tr("-Inf");
+                    text = Strings::minus_infinity;
                     val = 0.0;
 		}
                 break;
 
             case dBScale:
                 val = AudioLevel::dB_to_multiplier(-(10*n) + i * 10) * gain;
 		text = QString("%1").arg(-(10*n) + i * 10);
 		if (i == n) text = tr("0dB");
 		if (i == 0) {
-                    text = tr("-Inf");
+                    text = Strings::minus_infinity;
                     val = 0.0;
 		}
                 break;
             }