[scintilla] win32 에서의 IME

출처 : http://blog.naver.com/ohama100/130003094279

scintilla/scite 를 하다가 한글이 제자리에서 고쳐지지 않는 문제를 발견했다.

이것을 수정하였다.

IME 에 대한 자료를 찾기가 어려웠다.

http://www.winapi.co.kr/ 의 "당근"프로젝트에 대한 설명이 많은 도움이 되었다.

scintilla 에서 ScintillaWin.cxx 를 다음과 같이 수정하였다.

==============================================================
@@ -262,6 +262,9 @@
 }

private:
+ // for hangul composition
+ bool onComposition;
+
 // For use in creating a system caret
 bool HasCaretSizeChanged();
 BOOL CreateSystemCaret();
@@ -470,6 +473,11 @@
   LONG bytes = ::ImmGetCompositionStringW(hIMC,
    GCS_RESULTSTR, wcs, (maxLenInputIME-1)*2);
   int wides = bytes / 2;
+   if (onComposition) {
+    // delete the previous composition character.
+    DelCharBack (false);
+    onComposition = false;
+   }
   if (IsUnicodeMode()) {
    char utfval[maxLenInputIME * 3];
    unsigned int len = UTF8Length(wcs, wides);
@@ -494,6 +502,43 @@
   ::ImmReleaseContext(MainHWND(), hIMC);
  }
  return 0;
+ } else if (lParam & GCS_COMPSTR) {
+  HIMC hIMC = ::ImmGetContext(MainHWND());
+  if (hIMC) {
+   const int maxLenInputIME = 200;
+   wchar_t wcs[maxLenInputIME];
+   LONG bytes = ::ImmGetCompositionStringW(hIMC,
+    GCS_COMPSTR, wcs, (maxLenInputIME-1)*2);
+   int wides = bytes / 2;
+   if (onComposition) {
+    // delete the previous composition character.
+    DelCharBack (false);
+   }
+   onComposition = (wides != 0);
+   if (IsUnicodeMode()) {
+    char utfval[maxLenInputIME * 3];
+    unsigned int len = UTF8Length(wcs, wides);
+    UTF8FromUCS2(wcs, wides, utfval, len);
+    utfval[len] = '\0';
+    AddCharUTF(utfval, len);
+   } else {
+    char dbcsval[maxLenInputIME * 2];
+    int size = ::WideCharToMultiByte(InputCodePage(),
+     0, wcs, wides, dbcsval, sizeof(dbcsval) - 1, 0, 0);
+    for (int i=0; i<size; i++) {
+     AddChar(dbcsval[i]);
+    }
+   }
+   // Set new position after converted
+   Point pos = LocationFromPosition(currentPos);
+   COMPOSITIONFORM CompForm;
+   CompForm.dwStyle = CFS_POINT;
+   CompForm.ptCurrentPos.x = pos.x;
+   CompForm.ptCurrentPos.y = pos.y;
+   ::ImmSetCompositionWindow(hIMC, &CompForm);
+   ::ImmReleaseContext(MainHWND(), hIMC);
+  }
+  return 0;
 }
 return ::DefWindowProc(MainHWND(), WM_IME_COMPOSITION, wParam, lParam);
#endif
@@ -535,6 +580,8 @@
 switch (iMessage) {

 case WM_CREATE:
+  onComposition = false; // for hangul composition
+
  ctrlID = ::GetDlgCtrlID(reinterpret_cast<HWND>(wMain.GetID()));
  // Get Intellimouse scroll line parameters
  GetIntelliMouseParameters();

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