CWorldInforSidebar: Pass QModelIndex by const reference

Avoids some trivial copies.

src/Editor/WorldEditor/CWorldInfoSidebar.cpp

@@ -1,7 +1,6 @@
 #include "CWorldInfoSidebar.h"
 #include "ui_CWorldInfoSidebar.h"
 
-
 #include "Editor/CEditorApplication.h"
 #include "Editor/UICommon.h"
 #include "Editor/WorldEditor/CWorldEditor.h"
@@ -51,7 +50,7 @@ CWorldInfoSidebar::CWorldInfoSidebar(CWorldEditor *pEditor)
 CWorldInfoSidebar::~CWorldInfoSidebar() = default;
 
 // ************ SLOTS ************
-void CWorldInfoSidebar::OnActiveProjectChanged(CGameProject *pProj)
+void CWorldInfoSidebar::OnActiveProjectChanged(const CGameProject* pProj)
 {
     mpUI->ProjectInfoWidget->setHidden(pProj == nullptr);
     mpUI->WorldInfoWidget->setHidden(true);
@@ -64,7 +63,7 @@ void CWorldInfoSidebar::OnActiveProjectChanged(CGameProject *pProj)
     // Add/remove widgets from the form layout based on the game. This is needed because
     // simply hiding the widgets causes a minor spacing issue. The only fix seems to be
     // actually entirely removing the widgets from the layout when not in use.
-    bool IsEchoes = pProj && (pProj->Game() == EGame::EchoesDemo || pProj->Game() == EGame::Echoes);
+    const bool IsEchoes = pProj && (pProj->Game() == EGame::EchoesDemo || pProj->Game() == EGame::Echoes);
     mpUI->DarkWorldNameStringLabel->setHidden(!IsEchoes);
     mpUI->DarkWorldNameSelector->setHidden(!IsEchoes);
 
@@ -97,9 +96,9 @@ void CWorldInfoSidebar::OnAreaFilterStringChanged(const QString& rkFilter)
     }
 }
 
-void CWorldInfoSidebar::OnWorldTreeClicked(QModelIndex Index)
+void CWorldInfoSidebar::OnWorldTreeClicked(const QModelIndex& Index)
 {
-    QModelIndex RealIndex = mProxyModel.mapToSource(Index);
+    const QModelIndex RealIndex = mProxyModel.mapToSource(Index);
 
     // Fill in world info
     CWorld* pWorld = mModel.WorldForIndex(RealIndex);
@@ -115,12 +114,12 @@ void CWorldInfoSidebar::OnWorldTreeClicked(QModelIndex Index)
     }
 
     // Fill in area info
-    bool IsArea = !mModel.IndexIsWorld(RealIndex);
+    const bool IsArea = !mModel.IndexIsWorld(RealIndex);
     mpUI->AreaInfoWidget->setHidden(!IsArea);
 
     if (IsArea)
     {
-        int AreaIndex = Editor()->CurrentGame() == EGame::DKCReturns ? 0 : mModel.AreaIndexForIndex(RealIndex);
+        const int AreaIndex = Editor()->CurrentGame() == EGame::DKCReturns ? 0 : mModel.AreaIndexForIndex(RealIndex);
         mpUI->AreaNameLabel->setText(TO_QSTRING(pWorld->AreaInGameName(AreaIndex)));
         mpUI->AreaSelector->SetResource(pWorld->AreaResourceID(AreaIndex));
         mpUI->AreaNameLineEdit->setText(TO_QSTRING(pWorld->AreaInternalName(AreaIndex)));
@@ -137,17 +136,17 @@ void CWorldInfoSidebar::OnWorldTreeClicked(QModelIndex Index)
     }
 }
 
-void CWorldInfoSidebar::OnWorldTreeDoubleClicked(QModelIndex Index)
+void CWorldInfoSidebar::OnWorldTreeDoubleClicked(const QModelIndex& Index)
 {
-    QModelIndex RealIndex = mProxyModel.mapToSource(Index);
+    const QModelIndex RealIndex = mProxyModel.mapToSource(Index);
 
     if (!mModel.IndexIsWorld(RealIndex))
     {
         TResPtr<CWorld> pWorld = mModel.WorldForIndex(RealIndex);
-        int AreaIndex = mModel.AreaIndexForIndex(RealIndex);
+        const int AreaIndex = mModel.AreaIndexForIndex(RealIndex);
 
         // Validate area actually exists... DKCR has worlds that contain areas that don't exist
-        CAssetID AreaAssetID = pWorld->AreaResourceID(AreaIndex);
+        const CAssetID AreaAssetID = pWorld->AreaResourceID(AreaIndex);
 
         if (gpResourceStore->IsResourceRegistered(AreaAssetID))
         {

src/Editor/WorldEditor/CWorldInfoSidebar.h

@@ -28,10 +28,10 @@ public:
     ~CWorldInfoSidebar() override;
 
 public slots:
-    void OnActiveProjectChanged(CGameProject *pProj);
+    void OnActiveProjectChanged(const CGameProject* pProj);
     void OnAreaFilterStringChanged(const QString& rkFilter);
-    void OnWorldTreeClicked(QModelIndex Index);
+    void OnWorldTreeClicked(const QModelIndex& Index);
-    void OnWorldTreeDoubleClicked(QModelIndex Index);
+    void OnWorldTreeDoubleClicked(const QModelIndex& Index);
     void ClearWorldInfo();
     void ClearAreaInfo();
 };