Spring cleaning: Apply clang-tidy to src/widget.

Using LLVM 3.8.0:

$ clang-tidy --fix --checks="*,-llvm-header-guard,-readability-implicit-bool-cast,-readability-else-after-return,-google-readability-todo" $(git ls src/widget | xargs) -- (flags to compile)

1 files changed, 2 insertions, 2 deletions

diff --git a/src/widget/wdisplay.cpp b/src/widget/wdisplay.cpp
index e0a613195b..4826c5f562 100644
--- a/src/widget/wdisplay.cpp
+++ b/src/widget/wdisplay.cpp
@@ -28,7 +28,7 @@
 WDisplay::WDisplay(QWidget * parent)
         : WWidget(parent),
           m_iCurrentPixmap(0),
-          m_pPixmapBack(NULL),
+          m_pPixmapBack(nullptr),
           m_bDisabledLoaded(false) {
     setPositions(0);
 }
@@ -171,7 +171,7 @@ void WDisplay::onConnectedControlChanged(double dParameter, double dValue) {
     }
 }
 
-void WDisplay::paintEvent(QPaintEvent*) {
+void WDisplay::paintEvent(QPaintEvent* /*unused*/) {
     QStyleOption option;
     option.initFrom(this);
     QStylePainter p(this);