From f4d56f79cb27632b9831c10500d4f06e671169b0 Mon Sep 17 00:00:00 2001
From: Thomas Wilshaw <thomaswilshaw@gmail.com>
Date: Mon, 1 Jun 2020 17:59:04 +0100
Subject: [PATCH] Add ability to reset translation to center

---
 app/widget/viewer/viewerdisplay.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/app/widget/viewer/viewerdisplay.cpp b/app/widget/viewer/viewerdisplay.cpp
index d55484aa8..9d3ff22f5 100644
--- a/app/widget/viewer/viewerdisplay.cpp
+++ b/app/widget/viewer/viewerdisplay.cpp
@@ -157,6 +157,12 @@ void ViewerDisplayWidget::mousePressEvent(QMouseEvent *event)
     return;
   }
 
+  // reset translation
+  if (event->button() == Qt::MiddleButton && event->modifiers() & Qt::ControlModifier) {
+    QMatrix4x4 mat;
+    SetMatrixTranslate(mat);
+  }
+
   if (event->button() == Qt::MiddleButton) {
     printf("Middle Button Clicked\n");
     position_ = event->pos();