General code cleanups

* Removing unused includes
* Use member initialization
* Use range-based for loops
* Use nullptr
* Removed no longer used aliases
* Use override
* Don't use else after return
* Use '= delete' to remove implicit members
* Use std::string::empty instead of comparing to ""

1 files changed, 6 insertions, 5 deletions

diff --git a/src/gui/widgets/textfield.h b/src/gui/widgets/textfield.h
index b1b7a6a4..bb39810b 100644
--- a/src/gui/widgets/textfield.h
+++ b/src/gui/widgets/textfield.h
@@ -33,7 +33,8 @@ class TextField;
 using TextHistoryList = std::list<std::string>;
 using TextHistoryIterator = TextHistoryList::iterator;
 
-struct TextHistory {
+struct TextHistory
+{
     TextHistoryList history;     /**< Command history. */
     TextHistoryIterator current; /**< History iterator. */
 
@@ -90,7 +91,7 @@ class TextField : public gcn::TextField
         /**
          * Update the alpha value to the graphic components.
          */
-        void updateAlpha();
+        static void updateAlpha();
 
         /**
          * Draws the background and border.
@@ -168,14 +169,14 @@ class TextField : public gcn::TextField
         static int instances;
         static float mAlpha;
         static ImageRect skin;
-        bool mNumeric;
+        bool mNumeric = false;
         int mMinimum;
         int mMaximum;
         bool mLoseFocusOnTab;
 
-        AutoCompleteLister *mAutoComplete;
+        AutoCompleteLister *mAutoComplete = nullptr;
 
-        TextHistory *mHistory; /**< Text history. */
+        TextHistory *mHistory = nullptr; /**< Text history. */
 };
 
 #endif