From: Joel Holdsworth <redacted>
Date: Sat, 19 Jan 2013 08:22:12 +0000 (+0000)
Subject: Added axes to each signal
X-Git-Tag: pulseview-0.1.0~152
X-Git-Url: https://sigrok.org/gitweb/?p=pulseview.git;a=commitdiff_plain;h=3ef6182a4cb1d50262f019e5d78bd5c00fc08ca5

Added axes to each signal
---

diff --git a/pv/view/analogsignal.cpp b/pv/view/analogsignal.cpp
index 13608069..7ea6a6fd 100644
--- a/pv/view/analogsignal.cpp
+++ b/pv/view/analogsignal.cpp
@@ -46,6 +46,8 @@ void AnalogSignal::paint(QPainter &p, int y, int left, int right, double scale,
 	assert(_data);
 	assert(right >= left);
 
+	paint_axis(p, y, left, right);
+
 	const deque< shared_ptr<pv::data::AnalogSnapshot> > &snapshots =
 		_data->get_snapshots();
 	if (snapshots.empty())
diff --git a/pv/view/logicsignal.cpp b/pv/view/logicsignal.cpp
index 051da4d8..568d10b3 100644
--- a/pv/view/logicsignal.cpp
+++ b/pv/view/logicsignal.cpp
@@ -76,6 +76,8 @@ void LogicSignal::paint(QPainter &p, int y, int left, int right,
 	assert(_data);
 	assert(right >= left);
 
+	paint_axis(p, y, left, right);
+
 	const float high_offset = y - View::SignalHeight + 0.5f;
 	const float low_offset = y + 0.5f;
 
diff --git a/pv/view/signal.cpp b/pv/view/signal.cpp
index 2469d981..ed414c7c 100644
--- a/pv/view/signal.cpp
+++ b/pv/view/signal.cpp
@@ -31,6 +31,8 @@ namespace view {
 const int Signal::LabelHitPadding = 2;
 const int Signal::LabelHighlightRadius = 6;
 
+const QPen Signal::SignalAxisPen(QColor(128, 128, 128, 64));
+
 Signal::Signal(QString name) :
 	_name(name),
 	_v_offset(0),
@@ -140,6 +142,12 @@ bool Signal::pt_in_label_rect(int y, int left, int right,
 			).contains(point);
 }
 
+void Signal::paint_axis(QPainter &p, int y, int left, int right)
+{
+	p.setPen(SignalAxisPen);
+	p.drawLine(QPointF(left, y + 0.5f), QPointF(right, y + 0.5f));
+}
+
 void Signal::compute_text_size(QPainter &p)
 {
 	_text_size = p.boundingRect(QRectF(), 0, _name).size();
diff --git a/pv/view/signal.h b/pv/view/signal.h
index c35f557d..250d3ff3 100644
--- a/pv/view/signal.h
+++ b/pv/view/signal.h
@@ -25,6 +25,7 @@
 
 #include <QColor>
 #include <QPainter>
+#include <QPen>
 #include <QRect>
 #include <QString>
 
@@ -44,6 +45,8 @@ private:
 	static const int LabelHitPadding;
 	static const int LabelHighlightRadius;
 
+	static const QPen SignalAxisPen;
+
 protected:
 	Signal(QString name);
 
@@ -124,6 +127,17 @@ public:
 	bool pt_in_label_rect(int y, int left, int right,
 		const QPoint &point);
 
+protected:
+
+	/**
+	 * Paints a zero axis across the viewport.
+	 * @param p the QPainter to paint into.
+	 * @param y the y-offset of the axis.
+	 * @param left the x-coordinate of the left edge of the view.
+	 * @param right the x-coordinate of the right edge of the view.
+	 */
+	void paint_axis(QPainter &p, int y, int left, int right);
+
 private:
 
 	/**