DolphinQt: Don't update debug widgets when hidden

Saves on CPU usage when pausing/unpausing with the debugger disabled.
This is especially important when using frame advance rapidly.

1 files changed, 8 insertions, 1 deletions

diff --git a/Source/Core/DolphinQt/Debugger/MemoryWidget.cpp b/Source/Core/DolphinQt/Debugger/MemoryWidget.cpp
index 8629a195ca..3bfa69b293 100644
--- a/Source/Core/DolphinQt/Debugger/MemoryWidget.cpp
+++ b/Source/Core/DolphinQt/Debugger/MemoryWidget.cpp
@@ -57,7 +57,6 @@ MemoryWidget::MemoryWidget(QWidget* parent) : QDockWidget(parent)
   LoadSettings();
 
   ConnectWidgets();
-  Update();
   OnAddressSpaceChanged();
   OnTypeChanged();
 }
@@ -258,8 +257,16 @@ void MemoryWidget::closeEvent(QCloseEvent*)
   Settings::Instance().SetMemoryVisible(false);
 }
 
+void MemoryWidget::showEvent(QShowEvent* event)
+{
+  Update();
+}
+
 void MemoryWidget::Update()
 {
+  if (!isVisible())
+    return;
+
   m_memory_view->Update();
   update();
 }