DolphinQt2: Add missing Q_OBJECT macro to all QObject-related classes missing it

Without this macro, if any signals or slots were attempted to be used,
they wouldn't work; neither would various other features of the Qt
meta-object system. This can also lead to weird behavior in other
circumstances. Qt's documentation specifically states:

"Therefore, we strongly recommend that all subclasses of QObject use the
Q_OBJECT macro regardless of whether or not they actually use signals,
slots, and properties."

on its page for "The Meta-Object System", which can be seen here:
https://doc.qt.io/qt-5/metaobjects.html

Let's opt for "always do the right thing", and keep the code extensible
for the future and not have random things blow up on us.

Source/Core/DolphinQt2/Config/Graphics/GraphicsChoice.h

@@ -10,6 +10,7 @@
 
 class GraphicsChoice : public QComboBox
 {
+  Q_OBJECT
 public:
   GraphicsChoice(const QStringList& options, const Config::ConfigInfo<int>& setting);
 

Source/Core/DolphinQt2/Config/Graphics/GraphicsSlider.h

@@ -14,6 +14,7 @@ struct ConfigInfo;
 
 class GraphicsSlider : public QSlider
 {
+  Q_OBJECT
 public:
   GraphicsSlider(int minimum, int maximum, const Config::ConfigInfo<int>& setting, int tick = 0);
   void Update(int value);

Source/Core/DolphinQt2/Config/Mapping/GCKeyboardEmu.h

@@ -15,6 +15,7 @@ class QVBoxLayout;
 
 class GCKeyboardEmu final : public MappingWidget
 {
+  Q_OBJECT
 public:
   explicit GCKeyboardEmu(MappingWindow* window);
 

Source/Core/DolphinQt2/Config/Mapping/GCMicrophone.h

@@ -15,6 +15,7 @@ class QVBoxLayout;
 
 class GCMicrophone final : public MappingWidget
 {
+  Q_OBJECT
 public:
   explicit GCMicrophone(MappingWindow* window);
 

Source/Core/DolphinQt2/Config/Mapping/GCPadEmu.h

@@ -15,6 +15,7 @@ class QVBoxLayout;
 
 class GCPadEmu final : public MappingWidget
 {
+  Q_OBJECT
 public:
   explicit GCPadEmu(MappingWindow* window);
 

Source/Core/DolphinQt2/Config/Mapping/GCPadWiiUConfigDialog.h

@@ -13,6 +13,7 @@ class QVBoxLayout;
 
 class GCPadWiiUConfigDialog final : public QDialog
 {
+  Q_OBJECT
 public:
   explicit GCPadWiiUConfigDialog(int port, QWidget* parent = nullptr);
 

Source/Core/DolphinQt2/Config/Mapping/Hotkey3D.h

@@ -10,6 +10,7 @@ class QHBoxLayout;
 
 class Hotkey3D final : public MappingWidget
 {
+  Q_OBJECT
 public:
   explicit Hotkey3D(MappingWindow* window);
 

Source/Core/DolphinQt2/Config/Mapping/HotkeyDebugging.h

@@ -10,6 +10,7 @@ class QHBoxLayout;
 
 class HotkeyDebugging final : public MappingWidget
 {
+  Q_OBJECT
 public:
   explicit HotkeyDebugging(MappingWindow* window);
 

Source/Core/DolphinQt2/Config/Mapping/HotkeyGeneral.h

@@ -10,6 +10,7 @@ class QHBoxLayout;
 
 class HotkeyGeneral final : public MappingWidget
 {
+  Q_OBJECT
 public:
   explicit HotkeyGeneral(MappingWindow* window);
 

Source/Core/DolphinQt2/Config/Mapping/HotkeyGraphics.h

@@ -10,6 +10,7 @@ class QHBoxLayout;
 
 class HotkeyGraphics final : public MappingWidget
 {
+  Q_OBJECT
 public:
   explicit HotkeyGraphics(MappingWindow* window);
 

Source/Core/DolphinQt2/Config/Mapping/HotkeyStates.h

@@ -10,6 +10,7 @@ class QHBoxLayout;
 
 class HotkeyStates final : public MappingWidget
 {
+  Q_OBJECT
 public:
   explicit HotkeyStates(MappingWindow* window);
 

Source/Core/DolphinQt2/Config/Mapping/HotkeyTAS.h

@@ -10,6 +10,7 @@ class QHBoxLayout;
 
 class HotkeyTAS final : public MappingWidget
 {
+  Q_OBJECT
 public:
   explicit HotkeyTAS(MappingWindow* window);
 

Source/Core/DolphinQt2/Config/Mapping/HotkeyWii.h

@@ -10,6 +10,7 @@ class QHBoxLayout;
 
 class HotkeyWii final : public MappingWidget
 {
+  Q_OBJECT
 public:
   explicit HotkeyWii(MappingWindow* window);
 

Source/Core/DolphinQt2/Config/Mapping/WiimoteEmuExtension.h

@@ -11,6 +11,7 @@ class QHBoxLayout;
 
 class WiimoteEmuExtension final : public MappingWidget
 {
+  Q_OBJECT
 public:
   enum class Type
   {

Source/Core/DolphinQt2/Config/Mapping/WiimoteEmuGeneral.h

@@ -7,10 +7,12 @@
 #include "DolphinQt2/Config/Mapping/MappingWidget.h"
 
 class QComboBox;
+class QHBoxLayout;
 class WiimoteEmuExtension;
 
 class WiimoteEmuGeneral final : public MappingWidget
 {
+  Q_OBJECT
 public:
   explicit WiimoteEmuGeneral(MappingWindow* window, WiimoteEmuExtension* extension);
 

Source/Core/DolphinQt2/Config/Mapping/WiimoteEmuMotionControl.h

@@ -15,6 +15,7 @@ class QVBoxLayout;
 
 class WiimoteEmuMotionControl final : public MappingWidget
 {
+  Q_OBJECT
 public:
   explicit WiimoteEmuMotionControl(MappingWindow* window);
 

Source/Core/DolphinQt2/DolphinQt2.vcxproj

@@ -65,10 +65,27 @@
     <QtMoc Include="Config\FilesystemWidget.h" />
     <QtMoc Include="Config\GameConfigWidget.h" />
     <QtMoc Include="Config\GeckoCodeWidget.h" />
+    <QtMoc Include="Config\Mapping\GCKeyboardEmu.h" />
+    <QtMoc Include="Config\Mapping\GCMicrophone.h" />
+    <QtMoc Include="Config\Mapping\GCPadEmu.h" />
+    <QtMoc Include="Config\Mapping\GCPadWiiUConfigDialog.h" />
+    <QtMoc Include="Config\Mapping\Hotkey3D.h" />
+    <QtMoc Include="Config\Mapping\HotkeyDebugging.h" />
+    <QtMoc Include="Config\Mapping\HotkeyGeneral.h" />
+    <QtMoc Include="Config\Mapping\HotkeyGraphics.h" />
+    <QtMoc Include="Config\Mapping\HotkeyStates.h" />
+    <QtMoc Include="Config\Mapping\HotkeyTAS.h" />
+    <QtMoc Include="Config\Mapping\HotkeyWii.h" />
     <QtMoc Include="Config\Mapping\IOWindow.h" />
+    <QtMoc Include="Config\Mapping\MappingBool.h" />
     <QtMoc Include="Config\Mapping\MappingButton.h" />
+    <QtMoc Include="Config\Mapping\MappingIndicator.h" />
+    <QtMoc Include="Config\Mapping\MappingNumeric.h" />
     <QtMoc Include="Config\Mapping\MappingWidget.h" />
     <QtMoc Include="Config\Mapping\MappingWindow.h" />
+    <QtMoc Include="Config\Mapping\WiimoteEmuExtension.h" />
+    <QtMoc Include="Config\Mapping\WiimoteEmuGeneral.h" />
+    <QtMoc Include="Config\Mapping\WiimoteEmuMotionControl.h" />
     <QtMoc Include="Config\LogConfigWidget.h" />
     <QtMoc Include="Config\LogWidget.h" />
     <QtMoc Include="Config\NewPatchDialog.h" />
@@ -101,6 +118,7 @@
     <QtMoc Include="Debugger\NewBreakpointDialog.h" />
     <QtMoc Include="Debugger\RegisterWidget.h" />
     <QtMoc Include="Debugger\WatchWidget.h" />
+    <QtMoc Include="GCMemcardManager.h" />
     <QtMoc Include="GameList\GameList.h" />
     <QtMoc Include="GameList\GameListModel.h" />
     <QtMoc Include="GameList\GameTracker.h" />
@@ -108,10 +126,12 @@
     <QtMoc Include="GameList\ListProxyModel.h" />
     <QtMoc Include="Host.h" />
     <QtMoc Include="HotkeyScheduler.h" />
-    <QtMoc Include="Settings\InterfacePane.h" />
     <QtMoc Include="Settings\AudioPane.h" />
-    <QtMoc Include="Settings\WiiPane.h" />
+    <QtMoc Include="Settings\GameCubePane.h" />
+    <QtMoc Include="Settings\InterfacePane.h" />
+    <QtMoc Include="Settings\PathPane.h" />
     <QtMoc Include="Settings\USBDeviceAddToWhitelistDialog.h" />
+    <QtMoc Include="Settings\WiiPane.h" />
     <QtMoc Include="MainWindow.h" />
     <QtMoc Include="MenuBar.h" />
     <QtMoc Include="NetPlay\GameListDialog.h" />
@@ -119,10 +139,12 @@
     <QtMoc Include="NetPlay\NetPlayDialog.h" />
     <QtMoc Include="NetPlay\NetPlaySetupDialog.h" />
     <QtMoc Include="NetPlay\PadMappingDialog.h" />
+    <QtMoc Include="QtUtils\AspectRatioWidget.h" />
+    <QtMoc Include="QtUtils\BlockUserInputFilter.h" />
     <QtMoc Include="QtUtils\DoubleClickEventFilter.h" />
+    <QtMoc Include="QtUtils\ElidedButton.h" />
     <QtMoc Include="QtUtils\WindowActivationEventFilter.h" />
     <QtMoc Include="QtUtils\WrapInScrollArea.h" />
-    <QtMoc Include="QtUtils\AspectRatioWidget.h" />
     <QtMoc Include="RenderWidget.h" />
     <QtMoc Include="SearchBar.h" />
     <QtMoc Include="Settings.h" />
@@ -133,34 +155,39 @@
   </ItemGroup>
   <!--TODO figure out how to get QtMoc to add outputs to ClCompile's inputs...-->
   <ItemGroup>
-    <ClCompile Include="$(QtMocOutPrefix)CheatCodeEditor.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)ARCodeWidget.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)AboutDialog.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)AdvancedPane.cpp" />
-    <ClCompile Include="$(QtMocOutPrefix)AudioPane.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)AdvancedWidget.cpp" />
+    <ClCompile Include="$(QtMocOutPrefix)AspectRatioWidget.cpp" />
+    <ClCompile Include="$(QtMocOutPrefix)AudioPane.cpp" />
+    <ClCompile Include="$(QtMocOutPrefix)BlockUserInputFilter.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)BreakpointWidget.cpp" />
-    <ClCompile Include="$(QtMocOutPrefix)CheatsManager.cpp" />
+    <ClCompile Include="$(QtMocOutPrefix)CheatCodeEditor.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)CheatWarningWidget.cpp" />
+    <ClCompile Include="$(QtMocOutPrefix)CheatsManager.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)CodeViewWidget.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)CodeWidget.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)ControllersWindow.cpp" />
+    <ClCompile Include="$(QtMocOutPrefix)DoubleClickEventFilter.cpp" />
+    <ClCompile Include="$(QtMocOutPrefix)ElidedButton.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)EnhancementsWidget.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)FIFOPlayerWindow.cpp" />
-    <ClCompile Include="$(QtMocOutPrefix)GCTASInputWindow.cpp" />
-    <ClCompile Include="$(QtMocOutPrefix)WiiTASInputWindow.cpp" />
-    <ClCompile Include="$(QtMocOutPrefix)StickWidget.cpp" />
-    <ClCompile Include="$(QtMocOutPrefix)IRWidget.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)FilesystemWidget.cpp" />
-    <ClCompile Include="$(QtMocOutPrefix)WindowActivationEventFilter.cpp" />
+    <ClCompile Include="$(QtMocOutPrefix)GCKeyboardEmu.cpp" />
+    <ClCompile Include="$(QtMocOutPrefix)GCMemcardManager.cpp" />
+    <ClCompile Include="$(QtMocOutPrefix)GCMicrophone.cpp" />
+    <ClCompile Include="$(QtMocOutPrefix)GCPadEmu.cpp" />
+    <ClCompile Include="$(QtMocOutPrefix)GCPadWiiUConfigDialog.cpp" />
+    <ClCompile Include="$(QtMocOutPrefix)GCTASInputWindow.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)GameConfigWidget.cpp" />
+    <ClCompile Include="$(QtMocOutPrefix)GameCubePane.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)GameList.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)GameListDialog.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)GameListModel.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)GameTracker.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)GeckoCodeWidget.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)GeneralPane.cpp" />
-    <ClCompile Include="$(QtMocOutPrefix)WiiPane.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)GeneralWidget.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)GraphicsBool.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)GraphicsChoice.cpp" />
@@ -168,24 +195,35 @@
     <ClCompile Include="$(QtMocOutPrefix)GraphicsSlider.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)GraphicsWidget.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)GraphicsWindow.cpp" />
+    <ClCompile Include="$(QtMocOutPrefix)GridProxyModel.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)HacksWidget.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)Host.cpp" />
+    <ClCompile Include="$(QtMocOutPrefix)Hotkey3D.cpp" />
+    <ClCompile Include="$(QtMocOutPrefix)HotkeyDebugging.cpp" />
+    <ClCompile Include="$(QtMocOutPrefix)HotkeyGeneral.cpp" />
+    <ClCompile Include="$(QtMocOutPrefix)HotkeyGraphics.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)HotkeyScheduler.cpp" />
+    <ClCompile Include="$(QtMocOutPrefix)HotkeyStates.cpp" />
+    <ClCompile Include="$(QtMocOutPrefix)HotkeyTAS.cpp" />
+    <ClCompile Include="$(QtMocOutPrefix)HotkeyWii.cpp" />
+    <ClCompile Include="$(QtMocOutPrefix)IOWindow.cpp" />
+    <ClCompile Include="$(QtMocOutPrefix)IRWidget.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)InfoWidget.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)InterfacePane.cpp" />
-    <ClCompile Include="$(QtMocOutPrefix)IOWindow.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)JITWidget.cpp" />
-    <ClCompile Include="$(QtMocOutPrefix)GridProxyModel.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)ListProxyModel.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)LogConfigWidget.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)LogWidget.cpp" />
+    <ClCompile Include="$(QtMocOutPrefix)MD5Dialog.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)MainWindow.cpp" />
+    <ClCompile Include="$(QtMocOutPrefix)MappingBool.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)MappingButton.cpp" />
+    <ClCompile Include="$(QtMocOutPrefix)MappingIndicator.cpp" />
+    <ClCompile Include="$(QtMocOutPrefix)MappingNumeric.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)MappingWidget.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)MappingWindow.cpp" />
-    <ClCompile Include="$(QtMocOutPrefix)MD5Dialog.cpp" />
-    <ClCompile Include="$(QtMocOutPrefix)MemoryWidget.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)MemoryViewWidget.cpp" />
+    <ClCompile Include="$(QtMocOutPrefix)MemoryWidget.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)MenuBar.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)NetPlayDialog.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)NetPlaySetupDialog.cpp" />
@@ -193,18 +231,25 @@
     <ClCompile Include="$(QtMocOutPrefix)NewPatchDialog.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)PadMappingDialog.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)PatchesWidget.cpp" />
+    <ClCompile Include="$(QtMocOutPrefix)PathPane.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)PropertiesDialog.cpp" />
-    <ClCompile Include="$(QtMocOutPrefix)DoubleClickEventFilter.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)RegisterWidget.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)RenderWidget.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)SearchBar.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)Settings.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)SettingsWindow.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)SoftwareRendererWidget.cpp" />
+    <ClCompile Include="$(QtMocOutPrefix)StickWidget.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)ToolBar.cpp" />
-    <ClCompile Include="$(QtMocOutPrefix)WatchWidget.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)USBDeviceAddToWhitelistDialog.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)Updater.cpp" />
+    <ClCompile Include="$(QtMocOutPrefix)WatchWidget.cpp" />
+    <ClCompile Include="$(QtMocOutPrefix)WiiPane.cpp" />
+    <ClCompile Include="$(QtMocOutPrefix)WiiTASInputWindow.cpp" />
+    <ClCompile Include="$(QtMocOutPrefix)WiimoteEmuExtension.cpp" />
+    <ClCompile Include="$(QtMocOutPrefix)WiimoteEmuGeneral.cpp" />
+    <ClCompile Include="$(QtMocOutPrefix)WiimoteEmuMotionControl.cpp" />
+    <ClCompile Include="$(QtMocOutPrefix)WindowActivationEventFilter.cpp" />
     <ClCompile Include="AboutDialog.cpp" />
     <ClCompile Include="CheatsManager.cpp" />
     <ClCompile Include="Config\CheatCodeEditor.cpp" />
@@ -282,18 +327,18 @@
     <ClCompile Include="Main.cpp" />
     <ClCompile Include="MainWindow.cpp" />
     <ClCompile Include="MenuBar.cpp" />
-    <ClCompile Include="QtUtils\BlockUserInputFilter.cpp" />
     <ClCompile Include="NetPlay\GameListDialog.cpp" />
     <ClCompile Include="NetPlay\MD5Dialog.cpp" />
     <ClCompile Include="NetPlay\NetPlayDialog.cpp" />
     <ClCompile Include="NetPlay\NetPlaySetupDialog.cpp" />
     <ClCompile Include="NetPlay\PadMappingDialog.cpp" />
+    <ClCompile Include="QtUtils\AspectRatioWidget.cpp" />
+    <ClCompile Include="QtUtils\BlockUserInputFilter.cpp" />
     <ClCompile Include="QtUtils\DoubleClickEventFilter.cpp" />
     <ClCompile Include="QtUtils\ElidedButton.cpp" />
     <ClCompile Include="QtUtils\ImageConverter.cpp" />
     <ClCompile Include="QtUtils\WindowActivationEventFilter.cpp" />
     <ClCompile Include="QtUtils\WrapInScrollArea.cpp" />
-    <ClCompile Include="QtUtils\AspectRatioWidget.cpp" />
     <ClCompile Include="RenderWidget.cpp" />
     <ClCompile Include="Resources.cpp" />
     <ClCompile Include="SearchBar.cpp" />
@@ -313,33 +358,15 @@
   </ItemGroup>
   <!--Put standard C/C++ headers here. Headers that are listed in the QtMoc ItemGroup must NOT be listed here.-->
   <ItemGroup>
-    <ClInclude Include="Config\Mapping\GCKeyboardEmu.h" />
-    <ClInclude Include="Config\Mapping\GCMicrophone.h" />
-    <ClInclude Include="Config\Mapping\GCPadEmu.h" />
-    <ClInclude Include="Config\Mapping\GCPadWiiU.h" />
-    <ClInclude Include="Config\Mapping\Hotkey3D.h" />
-    <ClInclude Include="Config\Mapping\HotkeyGeneral.h" />
-    <ClInclude Include="Config\Mapping\HotkeyGraphics.h" />
-    <ClInclude Include="Config\Mapping\HotkeyStates.h" />
-    <ClInclude Include="Config\Mapping\HotkeyTAS.h" />
-    <ClInclude Include="QtUtils\WinIconHelper.h" />
-    <ClInclude Include="TAS\Shared.h" />
-    <ClInclude Include="Config\Mapping\HotkeyWii.h" />
-    <ClInclude Include="Config\Mapping\MappingBool.h" />
     <ClInclude Include="Config\Mapping\MappingCommon.h" />
-    <ClInclude Include="Config\Mapping\MappingIndicator.h" />
+    <ClInclude Include="Debugger\RegisterColumn.h" />
-    <ClInclude Include="Config\Mapping\MappingNumeric.h" />
+    <ClInclude Include="QtUtils\ActionHelper.h" />
-    <ClInclude Include="Config\Mapping\WiimoteEmuExtension.h" />
-    <ClInclude Include="Config\Mapping\WiimoteEmuGeneral.h" />
-    <ClInclude Include="Config\Mapping\WiimoteEmuMotionControl.h" />
-    <ClInclude Include="Config\RegisterColumn.h" />
-    <ClInclude Include="Config\RegisterWidget.h" />
-    <ClInclude Include="QtUtils\BlockUserInputFilter.h" />
-    <ClInclude Include="QtUtils\ElidedButton.h" />
     <ClInclude Include="QtUtils\ImageConverter.h" />
+    <ClInclude Include="QtUtils\QueueOnObject.h" />
+    <ClInclude Include="QtUtils\RunOnObject.h" />
+    <ClInclude Include="QtUtils\WinIconHelper.h" />
     <ClInclude Include="Resources.h" />
-    <ClInclude Include="Settings\GameCubePane.h" />
+    <ClInclude Include="TAS\Shared.h" />
-    <ClInclude Include="Settings\PathPane.h" />
     <ClInclude Include="Translation.h" />
     <ClInclude Include="WiiUpdate.h" />
   </ItemGroup>

Source/Core/DolphinQt2/GCMemcardManager.h

@@ -23,6 +23,7 @@ class QTimer;
 
 class GCMemcardManager : public QDialog
 {
+  Q_OBJECT
 public:
   explicit GCMemcardManager(QWidget* parent = nullptr);
   ~GCMemcardManager();

Source/Core/DolphinQt2/QtUtils/AspectRatioWidget.h

@@ -10,6 +10,7 @@ class QBoxLayout;
 
 class AspectRatioWidget : public QWidget
 {
+  Q_OBJECT
 public:
   AspectRatioWidget(QWidget* widget, float width, float height, QWidget* parent = nullptr);
   void resizeEvent(QResizeEvent* event);

Source/Core/DolphinQt2/QtUtils/BlockUserInputFilter.h

@@ -10,6 +10,7 @@ class QEvent;
 
 class BlockUserInputFilter : public QObject
 {
+  Q_OBJECT
 public:
   static BlockUserInputFilter* Instance();
 

Source/Core/DolphinQt2/QtUtils/ElidedButton.h

@@ -8,6 +8,7 @@
 
 class ElidedButton : public QPushButton
 {
+  Q_OBJECT
 public:
   explicit ElidedButton(const QString& text = QStringLiteral(""),
                         Qt::TextElideMode elide_mode = Qt::ElideRight);

Source/Core/DolphinQt2/Settings/GameCubePane.h

@@ -12,6 +12,7 @@ class QPushButton;
 
 class GameCubePane : public QWidget
 {
+  Q_OBJECT
 public:
   explicit GameCubePane();
 

Source/Core/DolphinQt2/Settings/PathPane.h

@@ -13,6 +13,7 @@ class QListWidget;
 
 class PathPane final : public QWidget
 {
+  Q_OBJECT
 public:
   explicit PathPane(QWidget* parent = nullptr);