From 2a66878148842f06a2d88ffecfcea863596c14d5 Mon Sep 17 00:00:00 2001
From: William McPherson <willmcpherson2@gmail.com>
Date: Sun, 9 Feb 2020 21:18:23 +1100
Subject: [PATCH] Piano: Ensure WaveWidget paints in-bounds

Letting GUI::Frame::paint_event() cover up your mistakes is tacky :P
---
 Applications/Piano/WaveWidget.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Applications/Piano/WaveWidget.cpp b/Applications/Piano/WaveWidget.cpp
index bd2430099e..41659ce0e2 100644
--- a/Applications/Piano/WaveWidget.cpp
+++ b/Applications/Piano/WaveWidget.cpp
@@ -47,8 +47,8 @@ int WaveWidget::sample_to_y(int sample) const
 {
     constexpr double sample_max = std::numeric_limits<i16>::max();
     double percentage = sample / sample_max;
-    double portion_of_height = percentage * frame_inner_rect().height();
-    int y = (frame_inner_rect().height() / 2) + portion_of_height;
+    double portion_of_half_height = percentage * ((frame_inner_rect().height() - 1) / 2.0);
+    double y = (frame_inner_rect().height() / 2.0) + portion_of_half_height;
     return y;
 }