Implement "use coloured background" functionality

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

diff --git a/pv/view/trace.cpp b/pv/view/trace.cpp
index 2e15ca958a1da81af2ebba507328da0b9cb801b6..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)
 {
@@ -66,6 +67,14 @@ QColor Trace::colour() const
 void Trace::set_colour(QColor colour)
 {
        colour_ = colour;
+
+       bgcolour_ = 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)
@@ -170,6 +179,23 @@ QRectF Trace::hit_box_rect(const ViewItemPaintParams &pp) const
                pp.width(), h);
 }
 
+void Trace::paint_back(QPainter &p, const ViewItemPaintParams &pp)
+{
+       if (coloured_bg_) {
+               p.setPen(QPen(Qt::NoPen));
+               p.setBrush(bgcolour_);
+
+               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;
+
+               p.drawRect(x, y, w, h);
+       }
+}
+
 void Trace::paint_axis(QPainter &p, const ViewItemPaintParams &pp, int y)
 {
        p.setPen(AxisPen);
@@ -236,7 +262,7 @@ void Trace::on_colour_changed(const QColor &colour)
        set_colour(colour);
 
        if (owner_)
-               owner_->row_item_appearance_changed(true, false);
+               owner_->row_item_appearance_changed(true, true);
 }
 
 } // namespace view