X-Git-Url: https://sigrok.org/gitweb/?p=pulseview.git;a=blobdiff_plain;f=pv%2Fview%2Fanalogsignal.cpp;h=250fb94e9bc6623c6720a581721662798cdb571c;hp=eaa25bccc947dac826d5bddf2eff50ec2fcdd325;hb=a5d93c27b5bd6b95000e29c6cddac56ab254b289;hpb=dc747705ac06c9e9ab582b6b8b7cfc31003128e0

diff --git a/pv/view/analogsignal.cpp b/pv/view/analogsignal.cpp
index eaa25bcc..250fb94e 100644
--- a/pv/view/analogsignal.cpp
+++ b/pv/view/analogsignal.cpp
@@ -31,6 +31,7 @@
 #include <libsigrok/libsigrok.hpp>
 
 using std::max;
+using std::make_pair;
 using std::min;
 using std::shared_ptr;
 using std::deque;
@@ -40,6 +41,8 @@ using sigrok::Channel;
 namespace pv {
 namespace view {
 
+const int AnalogSignal::NominalHeight = 80;
+
 const QColor AnalogSignal::SignalColours[4] = {
 	QColor(0xC4, 0xA0, 0x00),	// Yellow
 	QColor(0x87, 0x20, 0x7A),	// Magenta
@@ -79,6 +82,11 @@ void AnalogSignal::set_scale(float scale)
 	_scale = scale;
 }
 
+std::pair<int, int> AnalogSignal::v_extents() const
+{
+	return make_pair(-NominalHeight / 2, NominalHeight / 2);
+}
+
 void AnalogSignal::paint_back(QPainter &p, int left, int right)
 {
 	if (_channel->enabled())