From 76e2a0f42efc11d08b289f862a6f3e3202e391dd Mon Sep 17 00:00:00 2001
From: baldurk <baldurk@baldurk.org>
Date: Tue, 4 Sep 2018 18:10:05 +0100
Subject: [PATCH] On macOS, force a repaint of CustomPaintWidget upon
 UpdateRequest

* For some reason the actual paint event never makes it through after converting
  to metal-compatible widgets, but painting in response to UpdateRequest (which
  should become a paint really) works about as well.
---
 qrenderdoc/Widgets/CustomPaintWidget.cpp | 9 +++++++++
 qrenderdoc/Widgets/CustomPaintWidget.h   | 4 ++++
 2 files changed, 13 insertions(+)

diff --git a/qrenderdoc/Widgets/CustomPaintWidget.cpp b/qrenderdoc/Widgets/CustomPaintWidget.cpp
index e543bba9e..8a98935dd 100644
--- a/qrenderdoc/Widgets/CustomPaintWidget.cpp
+++ b/qrenderdoc/Widgets/CustomPaintWidget.cpp
@@ -115,3 +115,12 @@ void CustomPaintWidget::paintEvent(QPaintEvent *e)
     }
   }
 }
+
+#if defined(RENDERDOC_PLATFORM_APPLE)
+bool CustomPaintWidget::event(QEvent *e)
+{
+  if(m_Ctx && e->type() == QEvent::UpdateRequest)
+    paintEvent(NULL);
+  return QWidget::event(e);
+}
+#endif
\ No newline at end of file
diff --git a/qrenderdoc/Widgets/CustomPaintWidget.h b/qrenderdoc/Widgets/CustomPaintWidget.h
index 9bfcda35b..618e064ce 100644
--- a/qrenderdoc/Widgets/CustomPaintWidget.h
+++ b/qrenderdoc/Widgets/CustomPaintWidget.h
@@ -72,6 +72,10 @@ private:
 public slots:
 
 protected:
+#if defined(RENDERDOC_PLATFORM_APPLE)
+  bool event(QEvent *event) override;
+#endif
+
   void paintEvent(QPaintEvent *e) override;
   QPaintEngine *paintEngine() const override { return m_Ctx ? NULL : QWidget::paintEngine(); }
   ICaptureContext *m_Ctx;