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, 2 deletions

diff --git a/Source/Core/DolphinQt/Debugger/CodeWidget.cpp b/Source/Core/DolphinQt/Debugger/CodeWidget.cpp
index 443da54042..def631f87e 100644
--- a/Source/Core/DolphinQt/Debugger/CodeWidget.cpp
+++ b/Source/Core/DolphinQt/Debugger/CodeWidget.cpp
@@ -64,8 +64,6 @@ CodeWidget::CodeWidget(QWidget* parent) : QDockWidget(parent)
       settings.value(QStringLiteral("codewidget/codesplitter")).toByteArray());
   m_box_splitter->restoreState(
       settings.value(QStringLiteral("codewidget/boxsplitter")).toByteArray());
-
-  Update();
 }
 
 CodeWidget::~CodeWidget()
@@ -83,6 +81,11 @@ void CodeWidget::closeEvent(QCloseEvent*)
   Settings::Instance().SetCodeVisible(false);
 }
 
+void CodeWidget::showEvent(QShowEvent* event)
+{
+  Update();
+}
+
 void CodeWidget::CreateWidgets()
 {
   auto* layout = new QGridLayout;
@@ -265,6 +268,9 @@ void CodeWidget::SetAddress(u32 address, CodeViewWidget::SetAddressUpdate update
 
 void CodeWidget::Update()
 {
+  if (!isVisible())
+    return;
+
   const Common::Symbol* symbol = g_symbolDB.GetSymbolFromAddr(m_code_view->GetAddress());
 
   UpdateCallstack();