AddInputCharactersUTF8: shallow tweaks (#274)

imgui.cpp

@@ -778,17 +778,15 @@ void ImGuiIO::AddInputCharacter(ImWchar c)
     }
 }
 
-void ImGuiIO::AddInputCharactersUTF8(const char* utf8chars)
-{
-    // we can't pass more wchars than ImGuiIO::InputCharacters[] can hold so don't convert more
-    static const int wcharBufLen = sizeof(ImGuiIO::InputCharacters)/sizeof(ImWchar);
-    ImWchar wchars[wcharBufLen];
-    ImTextStrFromUtf8(wchars, wcharBufLen, utf8chars, NULL);
-    for(int i=0; i<wcharBufLen && wchars[i] != 0; ++i)
+void ImGuiIO::AddInputCharactersUTF8(const char* utf8_chars)
 {
+    // We can't pass more wchars than ImGuiIO::InputCharacters[] can hold so don't convert more
+    const int wchars_buf_len = sizeof(ImGuiIO::InputCharacters) / sizeof(ImWchar);
+    ImWchar wchars[wchars_buf_len];
+    ImTextStrFromUtf8(wchars, wchars_buf_len, utf8_chars, NULL);
+    for (int i = 0; wchars[i] != 0 && i < wchars_buf_len; i++)
         AddInputCharacter(wchars[i]);
 }
-}
 
 // Math bits
 // We are keeping those static in the .cpp file so as not to leak them outside, in the case the user has implicit cast operators between ImVec2 and its own types.

imgui.h

@@ -703,9 +703,9 @@ struct ImGuiIO
     bool        KeysDown[512];              // Keyboard keys that are pressed (in whatever storage order you naturally have access to keyboard data)
     ImWchar     InputCharacters[16+1];      // List of characters input (translated by user from keypress+keyboard state). Fill using AddInputCharacter() helper.
 
-    // Function
+    // Functions
     IMGUI_API void AddInputCharacter(ImWchar c);                    // Helper to add a new character into InputCharacters[]
-    IMGUI_API void AddInputCharactersUTF8(const char* utf8chars); // Helper to add new characters into InputCharacters[] from an utf8-string
+    IMGUI_API void AddInputCharactersUTF8(const char* utf8_chars);  // Helper to add new characters into InputCharacters[] from an UTF-8 string
 
     //------------------------------------------------------------------
     // Output - Retrieve after calling NewFrame(), you can use them to discard inputs or hide them from the rest of your application