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Diffstat (limited to 'win32/ScintillaWin.cxx')
-rw-r--r--win32/ScintillaWin.cxx73
1 files changed, 41 insertions, 32 deletions
diff --git a/win32/ScintillaWin.cxx b/win32/ScintillaWin.cxx
index db1e2b4d9..9aaf0552c 100644
--- a/win32/ScintillaWin.cxx
+++ b/win32/ScintillaWin.cxx
@@ -183,6 +183,23 @@ public:
DropTarget();
};
+namespace {
+
+class IMContext {
+ HWND hwnd;
+public:
+ HIMC hIMC;
+ IMContext(HWND hwnd_) :
+ hwnd(hwnd_), hIMC(::ImmGetContext(hwnd_)) {
+ }
+ ~IMContext() {
+ if (hIMC)
+ ::ImmReleaseContext(hwnd, hIMC);
+ }
+};
+
+}
+
/**
*/
class ScintillaWin :
@@ -777,10 +794,10 @@ sptr_t ScintillaWin::WndPaint(uptr_t wParam) {
sptr_t ScintillaWin::HandleCompositionWindowed(uptr_t wParam, sptr_t lParam) {
if (lParam & GCS_RESULTSTR) {
- HIMC hIMC = ::ImmGetContext(MainHWND());
- if (hIMC) {
+ IMContext imc(MainHWND());
+ if (imc.hIMC) {
wchar_t wcs[maxLenInputIME];
- LONG bytes = ::ImmGetCompositionStringW(hIMC,
+ LONG bytes = ::ImmGetCompositionStringW(imc.hIMC,
GCS_RESULTSTR, wcs, (maxLenInputIME-1)*2);
int wides = bytes / 2;
if (IsUnicodeMode()) {
@@ -803,8 +820,7 @@ sptr_t ScintillaWin::HandleCompositionWindowed(uptr_t wParam, sptr_t lParam) {
CompForm.dwStyle = CFS_POINT;
CompForm.ptCurrentPos.x = static_cast<int>(pos.x);
CompForm.ptCurrentPos.y = static_cast<int>(pos.y);
- ::ImmSetCompositionWindow(hIMC, &CompForm);
- ::ImmReleaseContext(MainHWND(), hIMC);
+ ::ImmSetCompositionWindow(imc.hIMC, &CompForm);
}
return 0;
}
@@ -841,16 +857,15 @@ void ScintillaWin::DrawImeIndicator(int indicator, int len) {
}
void ScintillaWin::SetCandidateWindowPos() {
- HIMC hIMC = ::ImmGetContext(MainHWND());
- if (hIMC) {
+ IMContext imc(MainHWND());
+ if (imc.hIMC) {
Point pos = PointMainCaret();
CANDIDATEFORM CandForm;
CandForm.dwIndex = 0;
CandForm.dwStyle = CFS_CANDIDATEPOS;
CandForm.ptCurrentPos.x = static_cast<int>(pos.x);
CandForm.ptCurrentPos.y = static_cast<int>(pos.y + vs.lineHeight);
- ::ImmSetCandidateWindow(hIMC, &CandForm);
- ::ImmReleaseContext(MainHWND(), hIMC);
+ ::ImmSetCandidateWindow(imc.hIMC, &CandForm);
}
}
@@ -922,15 +937,14 @@ void ScintillaWin::EscapeHanja() {
std::wstring uniChar = StringDecode(oneChar, CodePageOfDocument());
- HIMC hIMC=ImmGetContext(MainHWND());
- if (hIMC) {
+ IMContext imc(MainHWND());
+ if (imc.hIMC) {
// Set the candidate box position since IME may show it.
SetCandidateWindowPos();
// IME_ESC_HANJA_MODE appears to receive the first character only.
- if (ImmEscapeW(GetKeyboardLayout(0), hIMC, IME_ESC_HANJA_MODE, &uniChar[0])) {
+ if (ImmEscapeW(GetKeyboardLayout(0), imc.hIMC, IME_ESC_HANJA_MODE, &uniChar[0])) {
SetSelection (currentPos, currentPos + oneCharLen);
}
- ::ImmReleaseContext(MainHWND(), hIMC);
}
}
@@ -952,8 +966,8 @@ sptr_t ScintillaWin::HandleCompositionInline(uptr_t, sptr_t lParam) {
// Copy & paste by johnsonj with a lot of helps of Neil.
// Great thanks for my foreruners, jiniya and BLUEnLIVE.
- HIMC hIMC = ::ImmGetContext(MainHWND());
- if (!hIMC) {
+ IMContext imc(MainHWND());
+ if (!imc.hIMC) {
return 0;
}
@@ -970,12 +984,11 @@ sptr_t ScintillaWin::HandleCompositionInline(uptr_t, sptr_t lParam) {
if (lParam & GCS_COMPSTR) {
wchar_t wcs[maxLenInputIME] = { 0 };
long bytes = ::ImmGetCompositionStringW
- (hIMC, GCS_COMPSTR, wcs, maxLenInputIME);
+ (imc.hIMC, GCS_COMPSTR, wcs, maxLenInputIME);
unsigned int wcsLen = bytes / 2;
if ((wcsLen == 0) || (wcsLen >= maxLenInputIME)) {
ShowCaretAtCurrentPosition();
- ::ImmReleaseContext(MainHWND(), hIMC);
return 0;
}
@@ -986,10 +999,10 @@ sptr_t ScintillaWin::HandleCompositionInline(uptr_t, sptr_t lParam) {
unsigned int imeCursorPos = 0;
if (lParam & GCS_COMPATTR) {
- ImmGetCompositionStringW(hIMC, GCS_COMPATTR, compAttr, sizeof(compAttr));
+ ImmGetCompositionStringW(imc.hIMC, GCS_COMPATTR, compAttr, sizeof(compAttr));
}
if (lParam & GCS_CURSORPOS) {
- imeCursorPos = ImmGetCompositionStringW(hIMC, GCS_CURSORPOS, NULL, 0);
+ imeCursorPos = ImmGetCompositionStringW(imc.hIMC, GCS_CURSORPOS, NULL, 0);
}
// Display character by character.
@@ -1047,7 +1060,7 @@ sptr_t ScintillaWin::HandleCompositionInline(uptr_t, sptr_t lParam) {
} else if (lParam & GCS_RESULTSTR) {
wchar_t wcs[maxLenInputIME] = { 0 };
long bytes = ::ImmGetCompositionStringW
- (hIMC, GCS_RESULTSTR, wcs, maxLenInputIME);
+ (imc.hIMC, GCS_RESULTSTR, wcs, maxLenInputIME);
unsigned int wcsLen = bytes / 2;
for (size_t i = 0; i < wcsLen;) {
@@ -1071,7 +1084,6 @@ sptr_t ScintillaWin::HandleCompositionInline(uptr_t, sptr_t lParam) {
EnsureCaretVisible();
SetCandidateWindowPos();
ShowCaretAtCurrentPosition();
- ::ImmReleaseContext(MainHWND(), hIMC);
return 0;
}
@@ -1319,9 +1331,8 @@ sptr_t ScintillaWin::WndProc(unsigned int iMessage, uptr_t wParam, sptr_t lParam
case WM_LBUTTONDOWN: {
// For IME, set the composition string as the result string.
- HIMC hIMC = ::ImmGetContext(MainHWND());
- ::ImmNotifyIME(hIMC, NI_COMPOSITIONSTR, CPS_COMPLETE, 0);
- ::ImmReleaseContext(MainHWND(), hIMC);
+ IMContext imc(MainHWND());
+ ::ImmNotifyIME(imc.hIMC, NI_COMPOSITIONSTR, CPS_COMPLETE, 0);
//
//Platform::DebugPrintf("Buttdown %d %x %x %x %x %x\n",iMessage, wParam, lParam,
// Platform::IsKeyDown(VK_SHIFT),
@@ -1478,10 +1489,9 @@ sptr_t ScintillaWin::WndProc(unsigned int iMessage, uptr_t wParam, sptr_t lParam
DestroySystemCaret();
}
// Explicitly complete any IME composition
- HIMC hIMC = ImmGetContext(MainHWND());
- if (hIMC) {
- ::ImmNotifyIME(hIMC, NI_COMPOSITIONSTR, CPS_COMPLETE, 0);
- ::ImmReleaseContext(MainHWND(), hIMC);
+ IMContext imc(MainHWND());
+ if (imc.hIMC) {
+ ::ImmNotifyIME(imc.hIMC, NI_COMPOSITIONSTR, CPS_COMPLETE, 0);
}
}
break;
@@ -2571,14 +2581,14 @@ DropTarget::DropTarget() {
void ScintillaWin::ImeStartComposition() {
if (caret.active) {
// Move IME Window to current caret position
- HIMC hIMC = ::ImmGetContext(MainHWND());
+ IMContext imc(MainHWND());
Point pos = PointMainCaret();
COMPOSITIONFORM CompForm;
CompForm.dwStyle = CFS_POINT;
CompForm.ptCurrentPos.x = static_cast<int>(pos.x);
CompForm.ptCurrentPos.y = static_cast<int>(pos.y);
- ::ImmSetCompositionWindow(hIMC, &CompForm);
+ ::ImmSetCompositionWindow(imc.hIMC, &CompForm);
// Set font of IME window to same as surrounded text.
if (stylesValid) {
@@ -2605,9 +2615,8 @@ void ScintillaWin::ImeStartComposition() {
UTF16FromUTF8(fontName, strlen(fontName)+1, lf.lfFaceName, LF_FACESIZE);
}
- ::ImmSetCompositionFontW(hIMC, &lf);
+ ::ImmSetCompositionFontW(imc.hIMC, &lf);
}
- ::ImmReleaseContext(MainHWND(), hIMC);
// Caret is displayed in IME window. So, caret in Scintilla is useless.
DropCaret();
}
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-13 04:45:22 +0000