Fix code style and small perfomance issues.

6 files changed, 10 insertions, 15 deletions

diff --git a/src/gui/itempopup.cpp b/src/gui/itempopup.cpp
index feb9a050d..4b0501def 100644
--- a/src/gui/itempopup.cpp
+++ b/src/gui/itempopup.cpp
@@ -89,12 +89,9 @@ ItemPopup::~ItemPopup()
 {
     if (mIcon)
     {
-        Image *image = mIcon->getImage();
+        Image *const image = mIcon->getImage();
         if (image)
-        {
             image->decRef();
-            image = nullptr;
-        }
     }
 }
 
diff --git a/src/gui/shopwindow.cpp b/src/gui/shopwindow.cpp
index 95ee92f9f..386652a93 100644
--- a/src/gui/shopwindow.cpp
+++ b/src/gui/shopwindow.cpp
@@ -693,9 +693,7 @@ void ShopWindow::processRequest(std::string nick, std::string data,
     if (!inv)
         return;
 
-    size_t idx = 0;
-
-    idx = data.find(" ");
+    size_t idx = data.find(" ");
     if (idx == std::string::npos)
         return;
 
diff --git a/src/gui/socialwindow.cpp b/src/gui/socialwindow.cpp
index bba269144..c8f20edd2 100644
--- a/src/gui/socialwindow.cpp
+++ b/src/gui/socialwindow.cpp
@@ -1111,7 +1111,7 @@ public:
         for (StringVectCIter it = players->begin(), it_end = players->end();
              it != it_end; ++ it)
         {
-            Avatar *ava = new Avatar(*it);
+            Avatar *const ava = new Avatar(*it);
             if (actorSpriteManager->findBeingByName(*it, Being::PLAYER)
                 || players2.find(*it) != players2.end())
             {
diff --git a/src/gui/tradewindow.cpp b/src/gui/tradewindow.cpp
index e2db704f6..b696bad39 100644
--- a/src/gui/tradewindow.cpp
+++ b/src/gui/tradewindow.cpp
@@ -407,7 +407,7 @@ void TradeWindow::clear()
         static_cast<int>(Theme::LABEL)));
 }
 
-void TradeWindow::addAutoItem(const std::string nick, Item* const item,
+void TradeWindow::addAutoItem(const std::string &nick, Item* const item,
                               const int amount)
 {
     mAutoAddToNick = nick;
@@ -415,7 +415,7 @@ void TradeWindow::addAutoItem(const std::string nick, Item* const item,
     mAutoAddAmount = amount;
 }
 
-void TradeWindow::addAutoMoney(const std::string nick, const int money)
+void TradeWindow::addAutoMoney(const std::string &nick, const int money)
 {
     mAutoAddToNick = nick;
     mAutoMoney = money;
diff --git a/src/gui/tradewindow.h b/src/gui/tradewindow.h
index 892255fb6..3b840f045 100644
--- a/src/gui/tradewindow.h
+++ b/src/gui/tradewindow.h
@@ -132,10 +132,10 @@ class TradeWindow : public Window,
         /**
          * Add item what will be added to trade.
          */
-        void addAutoItem(const std::string nick, Item *const item,
+        void addAutoItem(const std::string &nick, Item *const item,
                          const int amount);
 
-        void addAutoMoney(const std::string nick, const int money);
+        void addAutoMoney(const std::string &nick, const int money);
 
         void initTrade(std::string nick);
 
diff --git a/src/gui/viewport.cpp b/src/gui/viewport.cpp
index b9abb4952..f30ebaecd 100644
--- a/src/gui/viewport.cpp
+++ b/src/gui/viewport.cpp
@@ -897,8 +897,8 @@ void Viewport::moveCameraToActor(const int actorId, const int x, const int y)
     const Actor *const actor = actorSpriteManager->findBeing(actorId);
     if (!actor)
         return;
-    const Vector actorPos = actor->getPosition();
-    const Vector playerPos = player_node->getPosition();
+    const Vector &actorPos = actor->getPosition();
+    const Vector &playerPos = player_node->getPosition();
     mCameraMode = 1;
     mCameraRelativeX = actorPos.x - playerPos.x + x;
     mCameraRelativeY = actorPos.y - playerPos.y + y;
@@ -909,7 +909,7 @@ void Viewport::moveCameraToPosition(const int x, const int y)
     if (!player_node)
         return;
 
-    const Vector playerPos = player_node->getPosition();
+    const Vector &playerPos = player_node->getPosition();
     mCameraMode = 1;
 
     mCameraRelativeX = x - playerPos.x;