From d1f1947432cafa5aa4657af72955285f192b2430 Mon Sep 17 00:00:00 2001
From: MattPollard44 <mattpollard44@gmail.com>
Date: Mon, 26 Apr 2021 16:15:28 -0400
Subject: [PATCH] Trying Mutex Lock to fix scroll crash

---
 Roto/mainwindow.cpp | 2 ++
 Roto/mainwindow.h   | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/Roto/mainwindow.cpp b/Roto/mainwindow.cpp
index 9f11795..374642e 100644
--- a/Roto/mainwindow.cpp
+++ b/Roto/mainwindow.cpp
@@ -260,6 +260,7 @@ void MainWindow::mouseDoubleClickEvent(QMouseEvent *event) {
 }
 
 void MainWindow::wheelEvent(QWheelEvent *event) {
+    scrollLock.lock();
     if (ioh->getWorkingLayer() == nullptr)
         return;
     int dy = event->angleDelta().y();
@@ -302,6 +303,7 @@ void MainWindow::wheelEvent(QWheelEvent *event) {
     }
     else if (mode == Raster_Mode)
         ioh->getWorkingLayer()->spinWheel(dy);
+    scrollLock.unlock();
     refresh();
 }
 
diff --git a/Roto/mainwindow.h b/Roto/mainwindow.h
index 767f126..bea796b 100644
--- a/Roto/mainwindow.h
+++ b/Roto/mainwindow.h
@@ -93,6 +93,7 @@ const QString Kernal_Loc = "/Kernals/";
 const QString FetchLink = "https://github.com/SCCapstone/SnakyBusiness/raw/master";
 const vector <string> acceptedImportImageFormats = {"bmp", "jpg", "jpeg", "png", "ppm", "xbm", "xpm", "gif", "pbm", "pgm"};
 const vector <string> acceptedExportImageFormats = {"bmp", "jpg", "jpeg", "png", "ppm", "xbm", "xpm"};
+static mutex scrollLock;
 
 enum downloadAction {DownloadThenRestart, DownLoadThenOpen};
 
@@ -175,6 +176,7 @@ public slots:
     QProgressDialog *progress;
     brushShape *brushProlfiler;
     patternProfiler *pp;
+    bool lock;
 };
 
 #endif // MAINWINDOW_H