X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=pv%2Fview%2Fruler.cpp;h=8d7569e35b427769c191b76d0b50c009116ea156;hb=27e8df221014d1a8c7769866773e8dbb0486eea8;hp=a9a8452d47fc6784d6d736762ba4938ce3408895;hpb=b213ef0991a13af0c74ffe5c54382c5c455c5496;p=pulseview.git

diff --git a/pv/view/ruler.cpp b/pv/view/ruler.cpp
index a9a8452d..8d7569e3 100644
--- a/pv/view/ruler.cpp
+++ b/pv/view/ruler.cpp
@@ -43,6 +43,7 @@ using namespace std;
 namespace pv {
 namespace view {
 
+const int Ruler::RulerHeight = 30;
 const int Ruler::MinorTickSubdivision = 4;
 const int Ruler::ScaleUnits[3] = {1, 2, 5};
 
@@ -74,7 +75,7 @@ QString Ruler::format_time(double t, unsigned int prefix,
 	unsigned int precision)
 {
 	const double multiplier = pow(10.0,
-		- prefix * 3 - FirstSIPrefixPower);
+		(int)- prefix * 3 - FirstSIPrefixPower);
 
 	QString s;
 	QTextStream ts(&s);
@@ -84,6 +85,11 @@ QString Ruler::format_time(double t, unsigned int prefix,
 	return s;
 }
 
+QSize Ruler::sizeHint() const
+{
+	return QSize(0, RulerHeight);
+}
+
 void Ruler::paintEvent(QPaintEvent*)
 {
 	using namespace Qt;
@@ -106,7 +112,7 @@ void Ruler::paintEvent(QPaintEvent*)
 		const double min_period = _view.scale() * min_width;
 
 		const int order = (int)floorf(log10f(min_period));
-		const double order_decimal = pow(10, order);
+		const double order_decimal = pow(10.0, order);
 
 		unsigned int unit = 0;