From 8ad24ac48f4fbcc6006359dcac4cf128019249f8 Mon Sep 17 00:00:00 2001
From: Mike Walters <mike@flomp.net>
Date: Sat, 26 Mar 2016 03:41:49 +0000
Subject: [PATCH] traceplot: Fix plotting of first sample in painter path

Previously was drawing a line from (0,0) to the first sample rather
than setting the initial position to the first sample then drawing
from there.
---
 traceplot.cpp | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/traceplot.cpp b/traceplot.cpp
index f8b169c..42af4bb 100644
--- a/traceplot.cpp
+++ b/traceplot.cpp
@@ -101,10 +101,13 @@ void TracePlot::plotTrace(QPainter &painter, const QRect &rect, float *samples,
         float x = i * xStep;
         float y = (1 - sample) * (rect.height() / 2);
 
-        x = xRange.clip(x);
-        y = yRange.clip(y);
+        x = xRange.clip(x) + rect.x();
+        y = yRange.clip(y) + rect.y();
 
-        path.lineTo(x + rect.x(), y + rect.y());
+        if (i == 0)
+            path.moveTo(x, y);
+        else
+            path.lineTo(x, y);
     }
     painter.drawPath(path);
 }