Split signal painting into 3 layers

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

diff --git a/pv/view/analogsignal.cpp b/pv/view/analogsignal.cpp
index 681386ff6b91f9c69e4f1a84f350b08675551b43..a4474dac8e06a0026b40da41e53b15b3cc7e8bc9 100644 (file)
--- a/pv/view/analogsignal.cpp
+++ b/pv/view/analogsignal.cpp
@@ -67,7 +67,13 @@ void AnalogSignal::set_scale(float scale)
        _scale = scale;
 }
 
-void AnalogSignal::paint(QPainter &p, int left, int right)
+void AnalogSignal::paint_back(QPainter &p, int left, int right)
+{
+       if (_probe->enabled)
+               paint_axis(p, get_y(), left, right);
+}
+
+void AnalogSignal::paint_mid(QPainter &p, int left, int right)
 {
        assert(_data);
        assert(right >= left);
@@ -83,8 +89,6 @@ void AnalogSignal::paint(QPainter &p, int left, int right)
        if (!_probe->enabled)
                return;
 
-       paint_axis(p, y, left, right);
-
        const deque< shared_ptr<pv::data::AnalogSnapshot> > &snapshots =
                _data->get_snapshots();
        if (snapshots.empty())