Implement "use coloured background" functionality

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

diff --git a/pv/view/trace.cpp b/pv/view/trace.cpp
index 05054d4927001c260d271d713ba88bbc14433029..3727afa2de246912c8834dc0f3977d5131ec25bc 100644 (file)
--- a/pv/view/trace.cpp
+++ b/pv/view/trace.cpp
@@ -43,6 +43,7 @@ const int Trace::LabelHitPadding = 2;
 
 Trace::Trace(QString name) :
        name_(name),
+       coloured_bg_(true), // Default setting is set in MainWindow::setup_ui()
        popup_(nullptr),
        popup_form_(nullptr)
 {
@@ -71,6 +72,11 @@ void Trace::set_colour(QColor colour)
        bgcolour_.setAlpha(20);
 }
 
+void Trace::set_coloured_bg(bool state)
+{
+       coloured_bg_ = state;
+}
+
 void Trace::paint_label(QPainter &p, const QRect &rect, bool hover)
 {
        const int y = get_visual_y();
@@ -175,17 +181,19 @@ QRectF Trace::hit_box_rect(const ViewItemPaintParams &pp) const
 
 void Trace::paint_back(QPainter &p, const ViewItemPaintParams &pp)
 {
-       p.setPen(QPen(Qt::NoPen));
-       p.setBrush(bgcolour_);
+       if (coloured_bg_) {
+               p.setPen(QPen(Qt::NoPen));
+               p.setBrush(bgcolour_);
 
-       const std::pair<int, int> extents = v_extents();
+               const std::pair<int, int> extents = v_extents();
 
-       const int x = 0;
-       const int y = get_visual_y() + extents.first;
-       const int w = pp.right() - pp.left();
-       const int h = extents.second - extents.first;
+               const int x = 0;
+               const int y = get_visual_y() + extents.first;
+               const int w = pp.right() - pp.left();
+               const int h = extents.second - extents.first;
 
-       p.drawRect(x, y, w, h);
+               p.drawRect(x, y, w, h);
+       }
 }
 
 void Trace::paint_axis(QPainter &p, const ViewItemPaintParams &pp, int y)