X-Git-Url: https://sigrok.org/gitweb/?p=pulseview.git;a=blobdiff_plain;f=pv%2Fview%2Ftrace.cpp;h=f7e7ebf25b8ec00a351bb415f7fe696de155e8b6;hp=2e15ca958a1da81af2ebba507328da0b9cb801b6;hb=0c2389230c90d8bf34b601c625bcf655b24e8f52;hpb=cbf0f87e496c9d9157591c94dc445aaa960fe79d;ds=sidebyside

diff --git a/pv/view/trace.cpp b/pv/view/trace.cpp
index 2e15ca95..f7e7ebf2 100644
--- a/pv/view/trace.cpp
+++ b/pv/view/trace.cpp
@@ -41,8 +41,12 @@ namespace view {
 const QPen Trace::AxisPen(QColor(128, 128, 128, 64));
 const int Trace::LabelHitPadding = 2;
 
+const QColor Trace::DarkBGColour(235, 235, 235);    // Quite light grey
+const QColor Trace::BrightBGColour(245, 245, 245);  // Very light grey
+
 Trace::Trace(QString name) :
 	name_(name),
+	coloured_bg_(true), // Default setting is set in MainWindow::setup_ui()
 	popup_(nullptr),
 	popup_form_(nullptr)
 {
@@ -66,6 +70,25 @@ 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;
+}
+
+bool Trace::is_draggable() const
+{
+	const View *const view = owner_->view();
+	assert(view);
+
+	QPoint cursor_pos = view->mapFromGlobal(QCursor::pos());
+
+	// The signal is draggable only in the header area
+	return (cursor_pos.x() <= view->header_size().width());
 }
 
 void Trace::paint_label(QPainter &p, const QRect &rect, bool hover)
@@ -170,6 +193,25 @@ 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.setBrush(bgcolour_);
+	else
+		p.setBrush(bgcolour_state_ ? BrightBGColour : DarkBGColour);
+
+	p.setPen(QPen(Qt::NoPen));
+
+	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 +278,7 @@ 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