Eliminated get_nominal_offset

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

diff --git a/pv/view/analogsignal.cpp b/pv/view/analogsignal.cpp
index fb5eba6103ad6ba9f3f22936d86fe831d07a5d66..136080694bbb03029c21691efe0b9b3293ac5c3c 100644 (file)
--- a/pv/view/analogsignal.cpp
+++ b/pv/view/analogsignal.cpp
@@ -39,11 +39,12 @@ AnalogSignal::AnalogSignal(QString name, shared_ptr<data::Analog> data) :
        _colour = Qt::blue;
 }
 
-void AnalogSignal::paint(QPainter &p, const QRect &rect, double scale,
+void AnalogSignal::paint(QPainter &p, int y, int left, int right, double scale,
        double offset)
 {
        assert(scale > 0);
        assert(_data);
+       assert(right >= left);
 
        const deque< shared_ptr<pv::data::AnalogSnapshot> > &snapshots =
                _data->get_snapshots();
@@ -59,15 +60,13 @@ void AnalogSignal::paint(QPainter &p, const QRect &rect, double scale,
        const int64_t last_sample = snapshot->get_sample_count() - 1;
        const double samples_per_pixel = samplerate * scale;
        const double start = samplerate * (offset - start_time);
-       const double end = start + samples_per_pixel * rect.width();
+       const double end = start + samples_per_pixel * (right - left);
 
        const int64_t start_sample = min(max((int64_t)floor(start),
                (int64_t)0), last_sample);
        const int64_t end_sample = min(max((int64_t)ceil(end),
                (int64_t)0), last_sample);
 
-       const int y_offset = rect.center().y();
-
        const float* samples = snapshot->get_samples();
        assert(samples);
 
@@ -77,9 +76,8 @@ void AnalogSignal::paint(QPainter &p, const QRect &rect, double scale,
        for (int64_t sample = start_sample;
                sample != end_sample; sample++) {
                const float x = (sample / samples_per_pixel -
-                       pixels_offset) + rect.left();
-               const float y = samples[sample] + y_offset;
-               *point++ = QPointF(x, y);
+                       pixels_offset) + left;
+               *point++ = QPointF(x, samples[sample] + y);
        }
 
        p.drawPoints(points, point - points);
@@ -87,10 +85,5 @@ void AnalogSignal::paint(QPainter &p, const QRect &rect, double scale,
        delete[] points;
 }
 
-int AnalogSignal::get_nominal_offset(const QRect &rect) const
-{
-       return rect.center().y();
-}
-
 } // namespace view
 } // namespace pv