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windows-nt/Source/XPSP1/NT/windows/richedit/re30/ime.cpp
CryptoAlgo Inc b3cac27891 Add source files
2020-09-26 16:20:57 +08:00

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/*
* @doc INTERNAL
*
* @module ime.cpp -- support for Win95 IME API |
*
* Most everything to do with FE composition string editing passes
* through here.
*
* Authors: <nl>
* Jon Matousek <nl>
* Hon Wah Chan <nl>
* Justin Voskuhl <nl>
*
* History: <nl>
* 10/18/1995 jonmat Cleaned up level 2 code and converted it into
* a class hierarchy supporting level 3.
*
* Copyright (c) 1995-1997 Microsoft Corporation. All rights reserved.
*/
#include "_common.h"
#include "_cmsgflt.h"
#include "_ime.h"
#include "imeapp.h"
#define HAVE_COMPOSITION_STRING() ( 0 != (lparam & (GCS_COMPSTR | GCS_COMPATTR)))
#define CLEANUP_COMPOSITION_STRING() ( 0 == lparam )
#define HAVE_RESULT_STRING() ( 0 != (lparam & GCS_RESULTSTR))
ASSERTDATA
/*
* HRESULT StartCompositionGlue (CTextMsgFilter &TextMsgFilter)
*
* @func
* Initiates an IME composition string edit.
* @comm
* Called from the message loop to handle WM_IME_STARTCOMPOSITION.
* This is a glue routine into the IME object hierarchy.
*
* @devnote
* We decide if we are going to do a level 2 or level 3 IME
* composition string edit. Currently, the only reason to
* create a level 2 IME is if the IME has a special UI, or it is
* a "near caret" IME, such as the ones found in PRC and Taiwan.
* Near caret simply means that a very small window opens up
* near the caret, but not on or at the caret.
*
* @rdesc
* HRESULT-S_FALSE for DefWindowProc processing, S_OK if not.
*/
HRESULT StartCompositionGlue (
CTextMsgFilter &TextMsgFilter) // @parm containing message filter.
{
TRACEBEGIN(TRCSUBSYSFE, TRCSCOPEINTERN, "StartCompositionGlue");
if(TextMsgFilter.IsIMEComposition() && TextMsgFilter._ime->IsTerminated())
{
delete TextMsgFilter._ime;
TextMsgFilter._ime = NULL;
}
if(!TextMsgFilter.IsIMEComposition())
{
if(TextMsgFilter._pTextSel->CanEdit(NULL) == NOERROR &&
!(TextMsgFilter._lFEFlags & ES_NOIME))
{
// Hold notification if needed
if (!(TextMsgFilter._fIMEAlwaysNotify))
TextMsgFilter._pTextDoc->SetNotificationMode(tomFalse);
// If a special UI, or IME is "near caret", then drop into lev. 2 mode.
DWORD imeProperties = ImmGetProperty(GetKeyboardLayout(0x0FFFFFFFF), IGP_PROPERTY, TextMsgFilter._fUsingAIMM);
// use Unicode if not running under Win95
TextMsgFilter._fUnicodeIME =
(imeProperties & IME_PROP_UNICODE) && !W32->OnWin95();
if ((imeProperties & IME_PROP_SPECIAL_UI) ||
!(imeProperties & IME_PROP_AT_CARET))
{
TextMsgFilter._ime = new CIme_Lev2(TextMsgFilter); // level 2 IME.
}
else
TextMsgFilter._ime = new CIme_Lev3(TextMsgFilter); // level 3 IME->TrueInline.
}
else // Protect or read-only or NOIME:
TextMsgFilter._ime = new CIme_Protected; // Ignore all ime input
}
else
{
// Ignore further StartCompositionMsg.
// Hanin 5.1 CHT symbol could cause multiple StartCompoisitonMsg.
return S_OK;
}
if(TextMsgFilter.IsIMEComposition())
{
long lSelFlags;
HRESULT hResult;
hResult = TextMsgFilter._pTextSel->GetFlags(&lSelFlags);
if (hResult == NOERROR)
{
TextMsgFilter._fOvertypeMode = !!(lSelFlags & tomSelOvertype);
if (TextMsgFilter._fOvertypeMode)
TextMsgFilter._pTextSel->SetFlags(lSelFlags & ~tomSelOvertype); // Turn off overtype mode
}
TextMsgFilter._pTextDoc->IMEInProgress(tomTrue); // Inform client IME compostion in progress
return TextMsgFilter._ime->StartComposition(TextMsgFilter); // Make the method call.
}
else
TextMsgFilter._pTextDoc->SetNotificationMode(tomTrue);
return S_FALSE;
}
/*
* HRESULT CompositionStringGlue (const LPARAM lparam, CTextMsgFilter &TextMsgFilter)
*
* @func
* Handle all intermediary and final composition strings.
*
* @comm
* Called from the message loop to handle WM_IME_COMPOSITION.
* This is a glue routine into the IME object hierarchy.
* We may be called independently of a WM_IME_STARTCOMPOSITION
* message, in which case we return S_FALSE to allow the
* DefWindowProc to return WM_IME_CHAR messages.
*
* @devnote
* Side Effect: the _ime object may be deleted if composition
* string processing is finished.
*
* @rdesc
* HRESULT-S_FALSE for DefWindowProc processing, S_OK if not.
*/
HRESULT CompositionStringGlue (
const LPARAM lparam, // @parm associated with message.
CTextMsgFilter &TextMsgFilter) // @parm the containing message filter.
{
TRACEBEGIN(TRCSUBSYSFE, TRCSCOPEINTERN, "CompositionStringGlue");
HRESULT hr = S_FALSE;
if(TextMsgFilter.IsIMEComposition()) // A priori fHaveIMMProcs.
{
TextMsgFilter._ime->_compMessageRefCount++; // For proper deletion.
// Make the method call.
hr = TextMsgFilter._ime->CompositionString(lparam, TextMsgFilter);
TextMsgFilter._ime->_compMessageRefCount--; // For proper deletion.
Assert (TextMsgFilter._ime->_compMessageRefCount >= 0);
CheckDestroyIME (TextMsgFilter); // Finished processing?
}
else // even when not in composition mode, we may receive a result string.
{
DWORD imeProperties = ImmGetProperty(GetKeyboardLayout(0x0FFFFFFFF), IGP_PROPERTY, TextMsgFilter._fUsingAIMM);
long lSelFlags;
HRESULT hResult;
long cpMin, cpMax;
TextMsgFilter._pTextDoc->IMEInProgress(tomTrue); // Inform client IME compostion in progress
hResult = TextMsgFilter._pTextSel->GetFlags(&lSelFlags);
if (hResult == NOERROR)
{
TextMsgFilter._fOvertypeMode = !!(lSelFlags & tomSelOvertype);
if (TextMsgFilter._fOvertypeMode)
TextMsgFilter._pTextSel->SetFlags(lSelFlags & ~tomSelOvertype); // Turn off overtype mode
}
// use Unicode if not running under Win95
TextMsgFilter._fUnicodeIME =
(imeProperties & IME_PROP_UNICODE) && !W32->OnWin95();
TextMsgFilter._pTextSel->GetStart(&cpMin);
TextMsgFilter._pTextSel->GetEnd(&cpMax);
if (cpMin != cpMax)
TextMsgFilter._pTextSel->SetText(NULL); // Delete current selection
CIme::CheckKeyboardFontMatching (cpMin, TextMsgFilter, NULL);
hr = CIme::CheckInsertResultString(lparam, TextMsgFilter);
if(TextMsgFilter._fOvertypeMode)
TextMsgFilter._pTextSel->SetFlags(lSelFlags | tomSelOvertype); // Turn on overtype mode
TextMsgFilter._pTextDoc->IMEInProgress(tomFalse); // Inform client IME compostion is done
}
return hr;
}
/*
* HRESULT EndCompositionGlue (CTextMsgFilter &TextMsgFilter, BOOL fForceDelete)
*
* @func
* Composition string processing is about to end.
*
* @comm
* Called from the message loop to handle WM_IME_ENDCOMPOSITION.
* This is a glue routine into the IME object hierarchy.
*
* @devnote
* The only time we have to handle WM_IME_ENDCOMPOSITION is when the
* user changes input method during typing. For such case, we will get
* a WM_IME_ENDCOMPOSITION message without getting a WM_IME_COMPOSITION
* message with GCS_RESULTSTR later. So, we will call CompositionStringGlue
* with GCS_RESULTSTR to let CompositionString to get rid of the string.
*
* @rdesc
* HRESULT-S_FALSE for DefWindowProc processing, S_OK if not.
*/
HRESULT EndCompositionGlue (
CTextMsgFilter &TextMsgFilter, // @parm the containing message filter.
BOOL fForceDelete) // @parm forec to terminate
{
TRACEBEGIN(TRCSUBSYSFE, TRCSCOPEINTERN, "EndCompositionGlue");
if(TextMsgFilter.IsIMEComposition())
{
// ignore the EndComposition message if necessary. We may
// get this from 3rd party IME - EGBRIGDE after we have received
// both result and composition strings.
if ( !(TextMsgFilter._ime->_fIgnoreEndComposition) )
{
// Set this flag. If we are still in composition mode, then
// let the CompositionStringGlue() to destroy the ime object.
TextMsgFilter._ime->_fDestroy = TRUE;
if (!fForceDelete)
CompositionStringGlue(GCS_COMPSTR , TextMsgFilter); // Remove any remaining composition string.
// Finished with IME, destroy it.
CheckDestroyIME(TextMsgFilter);
// Turn on undo
TextMsgFilter._pTextDoc->Undo(tomResume, NULL);
// Inform client IME compostion is done
TextMsgFilter._pTextDoc->IMEInProgress(tomFalse);
}
else
{
// reset this so we will handle next EndComp msg
TextMsgFilter._ime->_fIgnoreEndComposition = FALSE;
}
if(!TextMsgFilter.IsIMEComposition() && TextMsgFilter._fOvertypeMode)
{
long lSelFlags;
HRESULT hResult;
ITextSelection *pLocalTextSel = TextMsgFilter._pTextSel;
BOOL fRelease = FALSE;
if (!pLocalTextSel)
{
// Get the selection
TextMsgFilter._pTextDoc->GetSelectionEx(&pLocalTextSel);
fRelease = TRUE;
}
if (pLocalTextSel)
{
hResult = pLocalTextSel->GetFlags(&lSelFlags);
if (hResult == NOERROR)
pLocalTextSel->SetFlags(lSelFlags | tomSelOvertype); // Turn on overtype mode
if (fRelease)
pLocalTextSel->Release();
}
}
}
return S_FALSE;
}
/*
* HIMC LocalGetImmContext ( CTextMsgFilter &TextMsgFilter )
*
* @func
* Get Imm Context from host
*
*/
HIMC LocalGetImmContext(
CTextMsgFilter &TextMsgFilter)
{
TRACEBEGIN(TRCSUBSYSFE, TRCSCOPEINTERN, "IMEMessage");
HIMC hIMC = NULL; // Host's IME context.
HRESULT hResult;
hResult = TextMsgFilter._pTextDoc->GetImmContext((long *)&hIMC);
if (hResult != NOERROR)
hIMC = ImmGetContext(TextMsgFilter._hwnd); // Get host's IME context.
return hIMC;
}
/*
* void LocalReleaseImmContext ( CTextMsgFilter &TextMsgFilter, HIMC hIMC )
*
* @func
* call host to Release Imm Context
*
*/
void LocalReleaseImmContext(
CTextMsgFilter &TextMsgFilter,
HIMC hIMC )
{
HRESULT hResult;
hResult = TextMsgFilter._pTextDoc->ReleaseImmContext((long)hIMC);
if (hResult != NOERROR)
ImmReleaseContext(TextMsgFilter._hwnd, hIMC);
}
/*
* long IMEShareToTomUL ( UINT ulID )
*
* @func
* Convert IMEShare underline to Tom underline.
*
* @rdesc
* Tom underline value
*/
long IMEShareToTomUL (
UINT ulID )
{
long lTomUnderline;
switch (ulID)
{
case IMESTY_UL_NONE:
lTomUnderline = tomNone;
break;
case IMESTY_UL_DOTTED:
lTomUnderline = tomDotted;
break;
case IMESTY_UL_THICK:
case IMESTY_UL_THICKLOWER:
lTomUnderline = tomThick;
break;
case IMESTY_UL_DITHLOWER:
case IMESTY_UL_THICKDITHLOWER:
lTomUnderline = tomWave;
break;
// case IMESTY_UL_SINGLE:
// case IMESTY_UL_LOWER:
default:
lTomUnderline = tomSingle;
break;
}
return lTomUnderline;
}
/*
* void IMEMessage (CTextMsgFilter &TextMsgFilter , UINT uMsg, BOOL bPostMessage)
*
* @func
* Either post or send message to IME
*
*/
BOOL IMEMessage(
CTextMsgFilter &TextMsgFilter,
UINT uMsg,
WPARAM wParam,
LPARAM lParam,
BOOL bPostMessage)
{
TRACEBEGIN(TRCSUBSYSFE, TRCSCOPEINTERN, "IMEMessage");
HIMC hIMC; // Host's IME context.
HWND hwndIME;
BOOL retCode = FALSE;
HWND hHostWnd = TextMsgFilter._hwnd;
long hWnd;
if (!hHostWnd) // Windowless mode...
{
if (TextMsgFilter._pTextDoc->GetWindow(&hWnd) != S_OK || !hWnd)
return FALSE;
hHostWnd = (HWND)(DWORD_PTR)hWnd;
}
hIMC = LocalGetImmContext(TextMsgFilter); // Get host's IME context.
if(hIMC)
{
hwndIME = ImmGetDefaultIMEWnd(hHostWnd, TextMsgFilter._fUsingAIMM);
LocalReleaseImmContext(TextMsgFilter, hIMC);
// check if we want to send or post message
if (hwndIME)
{
if (bPostMessage)
retCode = PostMessage(hwndIME, uMsg, wParam, lParam);
else
retCode = SendMessage(hwndIME, uMsg, wParam, lParam);
}
}
return retCode;
}
/*
* void CheckDestroyIME (CTextMsgFilter &TextMsgFilter)
*
* @func
* Check for IME and see detroy if it needs it..
*
*/
void CheckDestroyIME (
CTextMsgFilter &TextMsgFilter)
{
TRACEBEGIN(TRCSUBSYSFE, TRCSCOPEINTERN, "CheckDestroyIME");
if(TextMsgFilter.IsIMEComposition() && TextMsgFilter._ime->_fDestroy)
{
if(0 == TextMsgFilter._ime->_compMessageRefCount)
{
if (TextMsgFilter._uKeyBoardCodePage == CP_KOREAN)
{
TextMsgFilter._pTextDoc->SetCaretType(tomNormalCaret); // Reset Block caret mode
TextMsgFilter._fHangulToHanja = FALSE; // Reset korean conversion mode
}
delete TextMsgFilter._ime; // All done with object.
TextMsgFilter._ime = NULL;
TextMsgFilter._pTextDoc->SetNotificationMode(tomTrue); // Turn on Notification
}
}
}
/*
* void PostIMECharGlue (CTextMsgFilter &TextMsgFilter)
*
* @func
* Called after processing a single WM_IME_CHAR in order to
* update the position of the IME's composition window. This
* is glue code to call the CIME virtual equivalent.
*/
void PostIMECharGlue (
CTextMsgFilter &TextMsgFilter) // @parm containing message filter.
{
TRACEBEGIN(TRCSUBSYSFE, TRCSCOPEINTERN, "PostIMECharGlue");
if(TextMsgFilter.IsIMEComposition())
TextMsgFilter._ime->PostIMEChar(TextMsgFilter);
}
/*
* BOOL IMEMouseCheck(CTextMsgFilter &TextMsgFilter, UINT *pmsg,
* WPARAM *pwparam, LPARAM *plparam, LRESULT *plres)
*
* @func
* Called when receiving a mouse event. Need to pass this event
* to MSIME98 for composition handling
*
*/
HRESULT IMEMouseCheck(
CTextMsgFilter &TextMsgFilter, // @parm MsgFilter
UINT *pmsg, // @parm the message
WPARAM *pwparam, // @parm WParam
LPARAM *plparam, // @parm LParam
LRESULT *plres) // @parm Lresult
{
TRACEBEGIN(TRCSUBSYSFE, TRCSCOPEINTERN, "IMEMouseCheck");
BOOL retCode = FALSE;
if(TextMsgFilter.IsIMEComposition())
{
retCode = TextMsgFilter._ime->IMEMouseOperation(TextMsgFilter, *pmsg);
if ( retCode == FALSE && WM_MOUSEMOVE != *pmsg )
TextMsgFilter._ime->TerminateIMEComposition(TextMsgFilter, CIme::TERMINATE_NORMAL);
}
return retCode ? S_OK : S_FALSE;
}
/*
* HRESULT IMENotifyGlue (const WPARAM wparam, const LPARAM lparam,
* CTextMsgFilter &TextMsgFilter)
*
* @func
* IME is going to change some state.
*
* @comm
* Currently we are interested in knowing when the candidate
* window is about to be opened.
*
* @rdesc
* HRESULT-S_FALSE for DefWindowProc processing, S_OK if not.
*/
HRESULT IMENotifyGlue (
const WPARAM wparam, // @parm associated with message.
const LPARAM lparam, // @parm associated with message.
CTextMsgFilter &TextMsgFilter) // @parm the containing message filter.
{
TRACEBEGIN(TRCSUBSYSFE, TRCSCOPEINTERN, "IMENotifyGlue");
if (TextMsgFilter._fRE10Mode &&
(wparam == IMN_SETCONVERSIONMODE ||
wparam == IMN_SETSENTENCEMODE ||
wparam == IMN_SETOPENSTATUS))
{
TextMsgFilter._pTextDoc->Notify(EN_IMECHANGE);
}
else if(TextMsgFilter.IsIMEComposition()) // A priori fHaveIMMProcs.
return TextMsgFilter._ime->IMENotify(wparam, lparam, TextMsgFilter, FALSE);// Make the method call
return S_FALSE;
}
/*
* void IMECompositionFull (&TextMsgFilter)
*
* @func
* Current IME Composition window is full.
*
* @comm
* Called from the message loop to handle WM_IME_COMPOSITIONFULL.
* This message applied to Level 2 only. We will use the default
* IME Composition window.
*/
void IMECompositionFull (
CTextMsgFilter &TextMsgFilter) // @parm the containing message filter.
{
TRACEBEGIN(TRCSUBSYSFE, TRCSCOPEINTERN, "IMECompositionFull");
if(TextMsgFilter.IsIMEComposition())
{
HIMC hIMC = LocalGetImmContext(TextMsgFilter);
COMPOSITIONFORM cf;
if(hIMC)
{
// No room for text input in the current level 2 IME window,
// fall back to use the default IME window for input.
cf.dwStyle = CFS_DEFAULT;
ImmSetCompositionWindow(hIMC, &cf, TextMsgFilter._fUsingAIMM); // Set composition window.
LocalReleaseImmContext(TextMsgFilter, hIMC); // Done with IME context.
}
}
}
/*
* LRESULT OnGetIMECompositionMode (CTextMsgFilter &TextMsgFilter)
*
* @mfunc
* Returns whether or not IME composition is being handled by RE,
* and if so, what level of processing.
*
* @rdesc
* One of ICM_NOTOPEN, ICM_LEVEL2_5, ICM_LEVEL2_SUI, ICM_LEVEL2, ICM_LEVEL3.
*/
LRESULT OnGetIMECompositionMode (
CTextMsgFilter &TextMsgFilter) // @parm containing message filter.
{
LRESULT lres = ICM_NOTOPEN;
if(TextMsgFilter.IsIMEComposition())
{
if(IME_LEVEL_2 == TextMsgFilter._ime->_imeLevel)
{
DWORD imeProperties;
imeProperties = ImmGetProperty(GetKeyboardLayout(0x0FFFFFFFF), IGP_PROPERTY, TextMsgFilter._fUsingAIMM);
if(imeProperties & IME_PROP_AT_CARET)
lres = ICM_LEVEL2_5; // level 2.5.
else if (imeProperties & IME_PROP_SPECIAL_UI)
lres = ICM_LEVEL2_SUI; // special UI.
else
lres = ICM_LEVEL2; // stock level 2.
}
else if(IME_LEVEL_3 == TextMsgFilter._ime->_imeLevel)
lres = ICM_LEVEL3;
}
return lres;
}
/*
* void CIme::CheckKeyboardFontMatching (long cp, CTextMsgFilter &TextMsgFilter, ITextFont *pTextFont)
*
* @mfunc
* Setup current font to matches the keyboard Codepage.
*
* @comm
* Called from CIme_Lev2::CIme_Lev2 and CompositionStringGlue
*
* @devnote
* We need to switch to a preferred font for the keyboard during IME input.
* Otherwise, we will display garbage.
*
*/
void CIme::CheckKeyboardFontMatching (
long cp,
CTextMsgFilter &TextMsgFilter,
ITextFont *pTextFont)
{
long lPitchAndFamily;
HRESULT hResult;
BSTR bstr = NULL;
long lValue;
long lNewFontSize=0;
float nFontSize;
ITextFont *pLocalFont = NULL;
if (!pTextFont)
{
// No font supplied, get current font from selection
hResult = TextMsgFilter._pTextSel->GetFont(&pLocalFont);
if (hResult != S_OK || !pLocalFont) // Can't get font, forget it
return;
pTextFont = pLocalFont;
}
// Check if current font matches the keyboard
lValue = tomCharset;
hResult = pTextFont->GetLanguageID(&lValue);
if (hResult == S_OK)
if ((BYTE)(lValue) == (BYTE)GetCharSet(TextMsgFilter._uKeyBoardCodePage))
goto Exit; // Current font is fine
hResult = pTextFont->GetSize(&nFontSize);
if (hResult != S_OK)
goto Exit;
hResult = TextMsgFilter._pTextDoc->GetPreferredFont(cp,
TextMsgFilter._uKeyBoardCodePage, tomMatchFontCharset,
GetCodePage((BYTE)(lValue)), (long)nFontSize,
&bstr, &lPitchAndFamily, &lNewFontSize);
if (hResult == S_OK)
{
if (bstr)
pTextFont->SetName(bstr);
// Set the font charset and Pitch&Family by overloading the SetLanguageID i/f
lValue = tomCharset + (((BYTE)lPitchAndFamily) << 8) +
(BYTE)GetCharSet(TextMsgFilter._uKeyBoardCodePage);
pTextFont->SetLanguageID(lValue);
if (lNewFontSize)
pTextFont->SetSize((float)lNewFontSize);
}
Exit:
if (pLocalFont)
pLocalFont->Release();
if (bstr)
SysFreeString(bstr);
}
/*
* INT CIme::GetCompositionStringInfo(HIMC hIMC, DWORD dwIndex,
* WCHAR *szCompStr, INT cchMax, BYTE *attrib, INT cbAttrib
* LONG cchAttrib, UINT kbCodePage, BOOL bUnicodeIME)
*
* @mfunc
* For WM_IME_COMPOSITION string processing to get the requested
* composition string, by type, and convert it to Unicode.
*
* @devnote
* We must use ImmGetCompositionStringA because W is not supported
* on Win95.
*
* @rdesc
* INT-cch of the Unicode composition string.
* Out param in szCompStr.
*/
INT CIme::GetCompositionStringInfo(
HIMC hIMC, // @parm IME context provided by host.
DWORD dwIndex, // @parm The type of composition string.
WCHAR *szCompStr, // @parm Out param, unicode result string.
INT cchMax, // @parm The cch for the Out param.
BYTE *attrib, // @parm Out param, If attribute info is needed.
INT cbMax, // @parm The cb of the attribute info.
LONG *cpCursor, // @parm Out param, returns the CP of cusor.
LONG *cchAttrib, // @parm how many attributes returned.
UINT kbCodePage, // @parm codepage
BOOL bUnicodeIME, // @parm Unciode IME
BOOL bUsingAimm) // @parm Using Aimm
{
TRACEBEGIN(TRCSUBSYSFE, TRCSCOPEINTERN, "CIme::GetCompositionStringInfo");
BYTE compStr[256], attribInfo[256];
INT i, j, iMax, cchCompStr=0, cbAttrib, cursor;
INT cchAnsiCompStr=0;
Assert(hIMC && szCompStr);
if(cpCursor) // Init cursor out param.
*cpCursor = -1;
if(cchAttrib)
*cchAttrib = 0;
// Get composition string.
if (bUnicodeIME)
cchCompStr = ImmGetCompositionStringW(hIMC, dwIndex, szCompStr, cchMax, bUsingAimm )/sizeof(WCHAR);
else
cchAnsiCompStr = ImmGetCompositionStringA(hIMC, dwIndex, compStr, 255, bUsingAimm);
if(cchAnsiCompStr > 0 || cchCompStr > 0) // If valid data.
{
if (!bUnicodeIME)
{
Assert(cchAnsiCompStr >> 1 < cchMax - 1); // Convert to Unicode.
cchCompStr = UnicodeFromMbcs(szCompStr, cchMax,
(CHAR *) compStr, cchAnsiCompStr, kbCodePage);
}
if(attrib || cpCursor) // Need cursor or attribs?
{
if (bUnicodeIME)
{ // Get Unicode Cursor cp.
cursor = ImmGetCompositionStringW(hIMC, GCS_CURSORPOS, NULL, 0, bUsingAimm);
// Get Unicode attributes.
cbAttrib = ImmGetCompositionStringW(hIMC, GCS_COMPATTR,
attribInfo, 255, bUsingAimm);
iMax = max(cursor, cbAttrib);
iMax = min(iMax, cchCompStr);
}
else
{ // Get DBCS Cursor cp.
cursor = ImmGetCompositionStringA(hIMC, GCS_CURSORPOS, NULL, 0, bUsingAimm);
// Get DBCS attributes.
cbAttrib = ImmGetCompositionStringA(hIMC, GCS_COMPATTR,
attribInfo, 255, bUsingAimm);
iMax = max(cursor, cbAttrib);
iMax = min(iMax, cchAnsiCompStr);
}
if(NULL == attrib)
cbMax = cbAttrib;
for(i = 0, j = 0; i <= iMax && j < cbMax; i++, j++)
{
if(cursor == i)
cursor = j;
if(!bUnicodeIME && GetTrailBytesCount(compStr[i], kbCodePage))
i++;
if(attrib && i < cbAttrib)
*attrib++ = attribInfo[i];
}
// attrib cch==unicode cch
Assert(0 >= cbAttrib || j-1 == cchCompStr);
if(cursor >= 0 && cpCursor) // If client needs cursor
*cpCursor = cursor; // or cchAttrib.
if(cbAttrib >= 0 && cchAttrib)
*cchAttrib = j-1;
}
}
else
{
if(cpCursor)
*cpCursor = 0;
cchCompStr = 0;
}
return cchCompStr;
}
/*
* void CIme::SetCompositionFont (CTextMsgFilter &TextMsgFilter, ITextFont *pTextFont)
*
* @mfunc
* Important for level 2 IME so that the composition window
* has the correct font. The lfw to lfa copy is due to the fact that
* Win95 does not support the W)ide call.
* It is also important for both level 2 and level 3 IME so that
* the candidate list window has the proper. font.
*/
void CIme::SetCompositionFont (
CTextMsgFilter &TextMsgFilter, // @parm the containing message filter.
ITextFont *pTextFont) // @parm ITextFont for setting lfa.
{
TRACEBEGIN(TRCSUBSYSFE, TRCSCOPEINTERN, "CIme::SetCompositionFont");
HIMC hIMC;
LOGFONTA lfa;
if (pTextFont)
{
hIMC = LocalGetImmContext(TextMsgFilter);
if (hIMC)
{
// Build the LOGFONT based on pTextFont
float FontSize;
long lValue;
BSTR bstr;
memset (&lfa, 0, sizeof(lfa));
if (pTextFont->GetSize(&FontSize) == NOERROR)
lfa.lfHeight = (LONG) FontSize;
if (pTextFont->GetBold(&lValue) == NOERROR && lValue == tomTrue)
lfa.lfWeight = FW_BOLD;
if (pTextFont->GetItalic(&lValue) == NOERROR && lValue == tomTrue)
lfa.lfItalic = TRUE;
lfa.lfCharSet = (BYTE)GetCharSet(TextMsgFilter._uKeyBoardCodePage);
lValue = tomCharset;
if (pTextFont->GetLanguageID(&lValue) == NOERROR &&
lfa.lfCharSet == (BYTE)lValue)
lfa.lfPitchAndFamily = (BYTE)(lValue >> 8);
if (pTextFont->GetName(&bstr) == NOERROR)
{
MbcsFromUnicode(lfa.lfFaceName, sizeof(lfa.lfFaceName), bstr,
-1, CP_ACP, UN_NOOBJECTS);
SysFreeString(bstr);
}
ImmSetCompositionFontA( hIMC, &lfa, TextMsgFilter._fUsingAIMM );
LocalReleaseImmContext(TextMsgFilter, hIMC); // Done with IME context.
}
}
}
/*
* void CIme::SetCompositionForm (CTextMsgFilter &TextMsgFilter)
*
* @mfunc
* Important for level 2 IME so that the composition window
* is positioned correctly.
*
* @comm
* We go through a lot of work to get the correct height. This requires
* getting information from the font cache and the selection.
*/
void CIme::SetCompositionForm (
CTextMsgFilter &TextMsgFilter) // @parm the containing text edit.
{
TRACEBEGIN(TRCSUBSYSFE, TRCSCOPEINTERN, "CIme::SetCompositionForm");
HIMC hIMC;
COMPOSITIONFORM cf;
if(IME_LEVEL_2 == GetIMELevel())
{
hIMC = LocalGetImmContext(TextMsgFilter); // Get IME context.
if(hIMC)
{
// get the location of cpMin
cf.ptCurrentPos.x = cf.ptCurrentPos.y = 0;
TextMsgFilter._pTextSel->GetPoint( tomStart+tomClientCoord+TA_BOTTOM+TA_LEFT,
&(cf.ptCurrentPos.x), &(cf.ptCurrentPos.y) );
// Set-up bounding rect. for the IME (lev 2) composition window, causing
// composition text to be wrapped within it.
cf.dwStyle = CFS_RECT;
TextMsgFilter._pTextDoc->GetClientRect(tomIncludeInset+tomClientCoord,
&(cf.rcArea.left), &(cf.rcArea.top),
&(cf.rcArea.right), &(cf.rcArea.bottom));
// Make sure the starting point is not
// outside the rcArea. This happens when
// there is no text on the current line and the user
// has selected a large font size.
if(cf.ptCurrentPos.y < cf.rcArea.top)
cf.ptCurrentPos.y = cf.rcArea.top;
else if(cf.ptCurrentPos.y > cf.rcArea.bottom)
cf.ptCurrentPos.y = cf.rcArea.bottom;
if(cf.ptCurrentPos.x < cf.rcArea.left)
cf.ptCurrentPos.x = cf.rcArea.left;
else if(cf.ptCurrentPos.x > cf.rcArea.right)
cf.ptCurrentPos.x = cf.rcArea.right;
ImmSetCompositionWindow(hIMC, &cf, TextMsgFilter._fUsingAIMM); // Set composition window.
LocalReleaseImmContext(TextMsgFilter, hIMC); // Done with IME context.
}
}
}
/*
*
* CIme::TerminateIMEComposition (CTextMsgFilter &TextMsgFilter)
*
* @mfunc Terminate the IME Composition mode using CPS_COMPLETE
* @comm The IME will generate WM_IME_COMPOSITION with the result string
*
*/
void CIme::TerminateIMEComposition(
CTextMsgFilter &TextMsgFilter, // @parm the containing message filter.
TerminateMode mode)
{
TRACEBEGIN(TRCSUBSYSFE, TRCSCOPEINTERN, "CIme::TerminateIMEComposition");
DWORD dwTerminateMethod;
HIMC hIMC = LocalGetImmContext(TextMsgFilter);
if(TextMsgFilter.IsIMEComposition() && TextMsgFilter._ime->IsTerminated())
{
// Turn if off now
EndCompositionGlue(TextMsgFilter, TRUE);
return;
}
_fIMETerminated = TRUE;
if (mode == TERMINATE_FORCECANCEL)
TextMsgFilter._pTextDoc->IMEInProgress(tomFalse); // Inform client IME compostion is done
dwTerminateMethod = CPS_COMPLETE;
if (IME_LEVEL_2 == GetIMELevel() || // force cancel for near-caret IME
mode == TERMINATE_FORCECANCEL || // caller wants force cancel
TextMsgFilter._fIMECancelComplete) // Client wants force cancel
{
dwTerminateMethod = CPS_CANCEL;
}
// force the IME to terminate the current session
if(hIMC)
{
BOOL retCode;
retCode = ImmNotifyIME(hIMC, NI_COMPOSITIONSTR,
dwTerminateMethod, 0, TextMsgFilter._fUsingAIMM);
if(!retCode && !TextMsgFilter._fIMECancelComplete)
{
// CPS_COMPLETE fail, try CPS_CANCEL. This happen with some ime which do not support
// CPS_COMPLETE option (e.g. ABC IME version 4 with Win95 simplified Chinese)
retCode = ImmNotifyIME(hIMC, NI_COMPOSITIONSTR, CPS_CANCEL, 0, TextMsgFilter._fUsingAIMM);
}
LocalReleaseImmContext(TextMsgFilter, hIMC);
}
else
{
// for some reason, we didn't have a context, yet we thought we were still in IME
// compostition mode. Just force a shutdown here.
EndCompositionGlue(TextMsgFilter, TRUE);
}
}
/*
* CIme_Lev2::CIme_Lev2()
*
* @mfunc
* CIme_Lev2 Constructor/Destructor.
*
* @comm
* Needed to make sure _iFormatSave was handled properly.
*
*/
CIme_Lev2::CIme_Lev2(
CTextMsgFilter &TextMsgFilter) // @parm the containing message filter.
{
long cpMin, cpMax, cpLoc;
HRESULT hResult;
ITextFont *pCurrentFont = NULL;
_pTextFont = NULL;
_cIgnoreIMECharMsg = 0;
// setup base Font format for later use during composition
hResult = TextMsgFilter._pTextSel->GetStart(&cpMin);
cpLoc = cpMin;
if (TextMsgFilter._fHangulToHanja)
cpMax = cpMin + 1; // Select the Hangul character
else
hResult = TextMsgFilter._pTextSel->GetEnd(&cpMax);
_fSkipFirstOvertype = FALSE;
if (cpMax != cpMin)
{
// selection case, get format for at cpMin
ITextRange *pTextRange;
HRESULT hResult;
hResult = TextMsgFilter._pTextDoc->Range(cpMin, cpMin+1, &pTextRange);
Assert (pTextRange != NULL);
if (hResult == NOERROR && pTextRange)
{
pTextRange->GetFont(&pCurrentFont);
Assert(pCurrentFont != NULL);
pTextRange->Release();
cpLoc = cpMin+1;
}
if (!TextMsgFilter._fHangulToHanja)
_fSkipFirstOvertype = TRUE; // For Korean Overtype support
}
if (!pCurrentFont)
TextMsgFilter._pTextSel->GetFont(&pCurrentFont);
Assert(pCurrentFont != NULL);
pCurrentFont->GetDuplicate(&_pTextFont); // duplicate the base format for later use
pCurrentFont->Release();
Assert(_pTextFont != NULL);
// setup font to match current keyboard
CIme::CheckKeyboardFontMatching (cpLoc, TextMsgFilter, _pTextFont);
_fIgnoreEndComposition = FALSE;
_fIMETerminated = FALSE;
}
CIme_Lev2::~CIme_Lev2()
{
if ( _pTextFont )
_pTextFont->Release();
}
/*
* HRESULT CIme_Lev2::StartComposition(CTextMsgFilter &TextMsgFilter)
*
* @mfunc
* Begin IME Level 2 composition string processing.
*
* @comm
* Set the font, and location of the composition window which includes
* a bounding rect and the start position of the cursor. Also, reset
* the candidate window to allow the IME to set its position.
*
* @rdesc
* HRESULT-S_FALSE for DefWindowProc processing, S_OK if not.
*/
HRESULT CIme_Lev2::StartComposition(
CTextMsgFilter &TextMsgFilter) // @parm the containing message filter.
{
TRACEBEGIN(TRCSUBSYSFE, TRCSCOPEINTERN, "CIme_Lev2::StartComposition");
_imeLevel = IME_LEVEL_2;
SetCompositionFont(TextMsgFilter, _pTextFont); // Set font, & comp window.
SetCompositionForm(TextMsgFilter);
return S_FALSE; // Allow DefWindowProc
} // processing.
/*
* HRESULT CIme_Lev2::CompositionString(const LPARAM lparam, CTextMsgFilter &TextMsgFilter)
*
* @mfunc
* Handle Level 2 WM_IME_COMPOSITION messages.
*
* @rdesc
* HRESULT-S_FALSE for DefWindowProc processing.
*
* Side effect:
* The Host needs to mask out the lparam before calling DefWindowProc to
* prevent unnessary WM_IME_CHAR messages.
*/
HRESULT CIme_Lev2::CompositionString (
const LPARAM lparam, // @parm associated with message.
CTextMsgFilter &TextMsgFilter) // @parm the containing message filter.
{
TRACEBEGIN(TRCSUBSYSFE, TRCSCOPEINTERN, "CIme_Lev2::CompositionString");
_cIgnoreIMECharMsg = 0;
if(HAVE_RESULT_STRING())
{
if (_pTextFont)
{
// setup the font before insert final string
ITextFont *pFETextFont=NULL;
_pTextFont->GetDuplicate(&pFETextFont);
Assert(pFETextFont != NULL);
TextMsgFilter._pTextSel->SetFont(pFETextFont);
pFETextFont->Release();
}
TextMsgFilter._pTextDoc->SetNotificationMode(tomTrue);
CheckInsertResultString(lparam, TextMsgFilter, &_cIgnoreIMECharMsg);
SetCompositionForm(TextMsgFilter); // Move Composition window.
}
// Always return S_FALSE so the DefWindowProc will handle the rest.
// Host has to mask out the ResultString bit to avoid WM_IME_CHAR coming in.
return S_FALSE;
}
/*
* HRESULT CIme::CheckInsertResultString (const LPARAM lparam, CTextMsgFilter &TextMsgFilter)
*
* @mfunc
* handle inserting of GCS_RESULTSTR text, the final composed text.
*
* @comm
* When the final composition string arrives we grab it and set it into the text.
*
* @devnote
* A GCS_RESULTSTR message can arrive and the IME will *still* be in
* composition string mode. This occurs because the IME's internal
* buffers overflowed and it needs to convert the beginning of the buffer
* to clear out some room. When this happens we need to insert the
* converted text as normal, but remain in composition processing mode.
*
* @rdesc
* HRESULT-S_FALSE for DefWindowProc processing, S_OK if not.
*/
HRESULT CIme::CheckInsertResultString (
const LPARAM lparam, // @parm associated with message.
CTextMsgFilter &TextMsgFilter, // @parm the containing message filter.
short *pcch) // @parm number of character read
{
TRACEBEGIN(TRCSUBSYSFE, TRCSCOPEINTERN, "CheckInsertResultString");
HRESULT hr = S_FALSE;
HIMC hIMC;
INT cch;
WCHAR szCompStr[256];
if(CLEANUP_COMPOSITION_STRING() || HAVE_RESULT_STRING()) // If result string..
{
hIMC = LocalGetImmContext(TextMsgFilter); // Get host's IME context.
cch = 0;
if(hIMC) // Get result string.
{
cch = GetCompositionStringInfo(hIMC, GCS_RESULTSTR,
szCompStr,
sizeof(szCompStr)/sizeof(szCompStr[0]),
NULL, 0, NULL, NULL, TextMsgFilter._uKeyBoardCodePage,
TextMsgFilter._fUnicodeIME, TextMsgFilter._fUsingAIMM);
if (pcch)
*pcch = (short)cch;
cch = min (cch, 255);
szCompStr[cch] = L'\0';
LocalReleaseImmContext(TextMsgFilter, hIMC); // Done with IME context.
}
// Don't need to replace range when there isn't any text. Otherwise, the character format is
// reset to previous run.
if(cch)
{
BSTR bstr = SysAllocString(szCompStr);
if (!bstr)
return E_OUTOFMEMORY;
TextMsgFilter._pTextSel->TypeText(bstr);
SysFreeString(bstr);
}
hr = S_OK; // Don't want WM_IME_CHARs.
}
return hr;
}
/*
* HRESULT CIme_Lev2::IMENotify(const WPARAM wparam, const LPARAM lparam,
* CTextMsgFilter &TextMsgFilter)
*
* @mfunc
* Handle Level 2 WM_IME_NOTIFY messages.
*
* @comm
* Currently we are only interested in knowing when to reset
* the candidate window's position.
*
* @rdesc
* HRESULT-S_FALSE for DefWindowProc processing, S_OK if not.
*/
HRESULT CIme_Lev2::IMENotify(
const WPARAM wparam, // @parm associated with message.
const LPARAM lparam, // @parm associated with message.
CTextMsgFilter &TextMsgFilter, // @parm the containing message filter.
BOOL fIgnore) // @parm Level3 Chinese Composition window only
{
TRACEBEGIN(TRCSUBSYSFE, TRCSCOPEINTERN, "CIme_Lev2::IMENotify");
if(IMN_OPENCANDIDATE == wparam)
{
Assert (0 != lparam);
HIMC hIMC; // Host's IME context.
INT index; // Candidate window index.
CANDIDATEFORM cdCandForm;
hIMC = LocalGetImmContext(TextMsgFilter); // Get host's IME context.
if(hIMC)
{
// Convert bitID to INDEX.
for (index = 0; index < 32; index++) // because API.
{
if((1 << index) & lparam)
break;
}
Assert (((1 << index) & lparam) == lparam); // Only 1 set?
Assert (index < 32);
// Reset to CFS_DEFAULT
if(ImmGetCandidateWindow(hIMC, index, &cdCandForm, TextMsgFilter._fUsingAIMM)
&& CFS_DEFAULT != cdCandForm.dwStyle)
{
cdCandForm.dwStyle = CFS_DEFAULT;
ImmSetCandidateWindow(hIMC, &cdCandForm, TextMsgFilter._fUsingAIMM);
}
LocalReleaseImmContext(TextMsgFilter, hIMC); // Done with IME context.
}
}
return S_FALSE; // Allow DefWindowProc
} // processing.
/*
* void CIme_Lev2::PostIMEChar (CTextMsgFilter &TextMsgFilter)
*
* @mfunc
* Called after processing a single WM_IME_CHAR in order to
* update the position of the IME's composition window.
*
*/
void CIme_Lev2::PostIMEChar (
CTextMsgFilter &TextMsgFilter) // @parm the containing message filter.
{
TRACEBEGIN(TRCSUBSYSFE, TRCSCOPEINTERN, "CIme_Lev2::PostIMEChar");
SetCompositionForm(TextMsgFilter); // Move Composition window.
}
/*
* CIme_Lev3::CIme_Lev3()
*
* @mfunc
* CIme_Lev3 Constructor/Destructor.
*
*/
CIme_Lev3::CIme_Lev3(
CTextMsgFilter &TextMsgFilter) : CIme_Lev2 ( TextMsgFilter )
{
_sIMESuportMouse = 0; // initial to 0 so we will check mouse operation if need
_wParamBefore = 0;
_fUpdateWindow = FALSE;
}
/*
* HRESULT CIme_Lev3::StartComposition(CTextMsgFilter &TextMsgFilter)
*
* @mfunc
* Begin IME Level 3 composition string processing.
*
* @comm
* For rudimentary processing, remember the start and
* length of the selection. Set the font in case the
* candidate window actually uses this information.
*
* @rdesc
* This is a rudimentary solution for remembering were
* the composition is in the text. There needs to be work
* to replace this with a composition "range".
*
* @rdesc
* HRESULT-S_FALSE for DefWindowProc processing, S_OK if not.
*/
HRESULT CIme_Lev3::StartComposition(
CTextMsgFilter &TextMsgFilter) // @parm the containing message filter.
{
TRACEBEGIN(TRCSUBSYSFE, TRCSCOPEINTERN, "CIme_Lev3::StartComposition");
long cpMin;
TextMsgFilter._pTextSel->GetStart(&cpMin);
_ichStart = cpMin;
_cchCompStr = 0;
_imeLevel = IME_LEVEL_3;
SetCompositionFont (TextMsgFilter, _pTextFont);
// Delete current selection
TextMsgFilter._pTextSel->SetText(NULL);
// turn off undo
TextMsgFilter._pTextDoc->Undo(tomSuspend, NULL);
if (_pTextFont)
{
_pTextFont->GetForeColor(&_crTextColor);
_pTextFont->GetBackColor(&_crBkColor);
}
return S_OK; // No DefWindowProc
} // processing.
/*
* HRESULT CIme_Lev3::CompositionString(const LPARAM lparam, CTextMsgFilter &TextMsgFilter)
*
* @mfunc
* Handle Level 3 WM_IME_COMPOSITION messages.
*
* @comm
* Display all of the intermediary composition text as well as the final
* reading.
*
* @devnote
* This is a rudimentary solution for replacing text in the backing store.
* Work is left to do with the undo list, underlining, and hiliting with
* colors and the selection.
*
* @devnote
* A GCS_RESULTSTR message can arrive and the IME will *still* be in
* composition string mode. This occurs because the IME's internal
* buffers overflowed and it needs to convert the beginning of the buffer
* to clear out some room. When this happens we need to insert the
* converted text as normal, but remain in composition processing mode.
*
* Another reason, GCS_RESULTSTR can occur while in composition mode
* for Korean because there is only 1 correct choice and no additional
* user intervention is necessary, meaning that the converted string can
* be sent as the result before composition mode is finished.
*
* @rdesc
* HRESULT-S_FALSE for DefWindowProc processing, S_OK if not.
*/
HRESULT CIme_Lev3::CompositionString(
const LPARAM lparam, // @parm associated with message.
CTextMsgFilter &TextMsgFilter) // @parm the containing message filter.
{
TRACEBEGIN(TRCSUBSYSFE, TRCSCOPEINTERN, "CIme_Lev3::CompositionString");
long cpMin;
_fIgnoreEndComposition = FALSE;
if (_fUpdateWindow)
{
TextMsgFilter._pTextDoc->UpdateWindow();
_fUpdateWindow = FALSE;
}
if(CLEANUP_COMPOSITION_STRING() || HAVE_RESULT_STRING()) // Any final readings?
{
long lCount;
if (!CLEANUP_COMPOSITION_STRING())
TextMsgFilter._pTextDoc->Freeze(&lCount); // Turn off display
if (_cchCompStr)
{
ITextRange *pTextRange = NULL;
// Create a range to delete composition text
TextMsgFilter._pTextDoc->Range(_ichStart, _ichStart + _cchCompStr, &pTextRange);
Assert (pTextRange != NULL);
// delete composition text
pTextRange->SetText(NULL);
pTextRange->Release();
_cchCompStr = 0; // be in composition mode.
};
// setup the font before insert final string
ITextFont *pFETextFont;
_pTextFont->GetDuplicate(&pFETextFont);
Assert(pFETextFont != NULL);
TextMsgFilter._pTextSel->SetFont(pFETextFont);
pFETextFont->Release();
// turn on undo
TextMsgFilter._pTextDoc->Undo(tomResume, NULL);
// Turn on Notification again
TextMsgFilter._pTextDoc->SetNotificationMode(tomTrue);
// get final string
CheckInsertResultString(lparam, TextMsgFilter);
if (!CLEANUP_COMPOSITION_STRING())
TextMsgFilter._pTextDoc->Unfreeze(&lCount); // Turn on display
// Reset as we may still in Composition
TextMsgFilter._pTextSel->GetStart(&cpMin);
_ichStart = cpMin;
// turn off undo for Korean IME since we will get Composition string message
// again without getting EndComposition
if (TextMsgFilter._uKeyBoardCodePage == CP_KOREAN)
{
TextMsgFilter._pTextDoc->Undo(tomSuspend, NULL);
}
}
if(HAVE_COMPOSITION_STRING()) // In composition mode?
{
HIMC hIMC;
INT cchOld = _cchCompStr;
LONG cpCursor = 0, cchAttrib = 0;
LONG i, j; // For applying attrib effects.
WCHAR szCompStr[256];
BYTE startAttrib, attrib[256];
BSTR bstr = NULL;
ITextRange *pTextRange = NULL;
long cpMax;
long lCount;
_cchCompStr = 0;
hIMC = LocalGetImmContext(TextMsgFilter); // Get host's IME context.
if(hIMC) // Get composition string.
{
_cchCompStr = GetCompositionStringInfo(hIMC, GCS_COMPSTR,
szCompStr, sizeof(szCompStr)/sizeof(szCompStr[0]),
attrib, sizeof(attrib)/sizeof(attrib[0]),
&cpCursor, &cchAttrib, TextMsgFilter._uKeyBoardCodePage, TextMsgFilter._fUnicodeIME, TextMsgFilter._fUsingAIMM);
_cchCompStr = min (_cchCompStr, 255);
szCompStr[_cchCompStr] = L'\0';
LocalReleaseImmContext(TextMsgFilter, hIMC); // Done with IME context.
}
// any new composition string?
if(_cchCompStr)
{
long cchExced = 0;
if (TextMsgFilter._pTextDoc->CheckTextLimit(_cchCompStr-cchOld, &cchExced) == NOERROR &&
cchExced > 0)
{
// We reach text limit, beep...
TextMsgFilter._pTextDoc->SysBeep();
if (_cchCompStr > cchExced)
_cchCompStr -= cchExced;
else
_cchCompStr = 0;
szCompStr[_cchCompStr] = L'\0';
if (!_cchCompStr && TextMsgFilter._uKeyBoardCodePage == CP_KOREAN)
TextMsgFilter._pTextDoc->SetCaretType(tomNormalCaret); // Turn off Block caret mode
}
bstr = SysAllocString(szCompStr);
if (!bstr)
return E_OUTOFMEMORY;
if (HAVE_RESULT_STRING())
{
// ignore next end composition
_fIgnoreEndComposition = TRUE;
// turn off undo
TextMsgFilter._pTextDoc->Undo(tomSuspend, NULL);
// Hold notification if needed
if (!(TextMsgFilter._fIMEAlwaysNotify))
TextMsgFilter._pTextDoc->SetNotificationMode(tomFalse);
// Get the new format that may have changed by apps (e.g. Outlook)
_pTextFont->Release();
ITextFont *pCurrentFont = NULL;
TextMsgFilter._pTextSel->GetFont(&pCurrentFont);
Assert(pCurrentFont != NULL);
pCurrentFont->GetDuplicate(&_pTextFont); // duplicate the base format for later use
pCurrentFont->Release();
Assert(_pTextFont != NULL);
CIme::CheckKeyboardFontMatching (_ichStart, TextMsgFilter, _pTextFont);
}
}
if (cchOld || _cchCompStr)
{
bool fFreezeDisplay = false;
// Hold notification if needed
if (!(TextMsgFilter._fIMEAlwaysNotify))
TextMsgFilter._pTextDoc->SetNotificationMode(tomFalse);
// We only support overtype mode in Korean IME
if (!cchOld && TextMsgFilter._uKeyBoardCodePage == CP_KOREAN &&
TextMsgFilter._fOvertypeMode && !_fSkipFirstOvertype)
{
long cCurrentChar;
HRESULT hResult;
// Create a range using the next character
hResult = TextMsgFilter._pTextDoc->Range(_ichStart, _ichStart+1, &pTextRange);
Assert (pTextRange != NULL);
// Check if it is par character. If so, we don't want to
// delete it.
hResult = pTextRange->GetChar(&cCurrentChar);
if (hResult == NOERROR)
{
if (cCurrentChar != (long)'\r' && cCurrentChar != (long)'\n')
{
TextMsgFilter._pTextDoc->Undo(tomResume, NULL); // Turn on undo
pTextRange->SetText(NULL); // Delete the character
TextMsgFilter._pTextDoc->Undo(tomSuspend, NULL); // Turn off undo
}
else
{
// Unselect the par character
hResult = pTextRange->SetRange(_ichStart, _ichStart);
}
}
}
else
{
// Create a range using the preivous composition text and delete the text
TextMsgFilter._pTextDoc->Range(_ichStart, _ichStart+cchOld, &pTextRange);
Assert (pTextRange != NULL);
if (cchOld)
{
if (cpCursor)
{
TextMsgFilter._pTextDoc->Freeze(&lCount); // Turn off display
fFreezeDisplay = true;
}
pTextRange->SetText(NULL);
}
}
_fSkipFirstOvertype = FALSE;
if (cpCursor && !fFreezeDisplay)
TextMsgFilter._pTextDoc->Freeze(&lCount); // Turn off display
// Make sure the composition string is formatted with the base font
ITextFont *pFETextFont;
HRESULT hResult;
hResult = _pTextFont->GetDuplicate(&pFETextFont);
Assert(pFETextFont != NULL);
if (!(hResult != NOERROR || pFETextFont == NULL))
{
if (TextMsgFilter._fHangulToHanja)
// Hangul to Hanja mode, setup font for selection to
// handle the Hanja character the come in after the end composition
// message
TextMsgFilter._pTextSel->SetFont(pFETextFont);
else
pTextRange->SetFont(pFETextFont);
}
pTextRange->SetText(bstr); // Replace with the new text
if (pFETextFont)
pFETextFont->Release();
// update how many composition characters have been added
pTextRange->GetEnd(&cpMax);
_cchCompStr = cpMax - _ichStart;
if (TextMsgFilter._uKeyBoardCodePage == CP_KOREAN)
{
// no formatting for Korean
POINT ptBottomPos;
if (cpCursor)
TextMsgFilter._pTextDoc->Unfreeze(&lCount); // Turn on display
if (pTextRange->GetPoint( tomEnd+TA_BOTTOM+TA_RIGHT,
&(ptBottomPos.x), &(ptBottomPos.y) ) != NOERROR)
pTextRange->ScrollIntoView(tomEnd);
// Setup Block caret mode
TextMsgFilter._pTextDoc->SetCaretType(_cchCompStr ? tomKoreanBlockCaret : tomNormalCaret);
}
else if (_cchCompStr && _cchCompStr <= cchAttrib)
{
for ( i = 0; i < _cchCompStr; ) // Parse the attributes...
{ // to apply styles.
ITextFont *pFETextFont;
HRESULT hResult;
hResult = _pTextFont->GetDuplicate(&pFETextFont);
Assert(pFETextFont != NULL);
if (hResult != NOERROR || pFETextFont == NULL)
break;
// Rsest the clone font so we will only apply effects returned
// from SetCompositionStyle
pFETextFont->Reset(tomUndefined);
startAttrib = attrib[i]; // Get attrib's run length.
for ( j = i+1; j < _cchCompStr; j++ )
{
if ( startAttrib != attrib[j] ) // Same run until diff.
break;
}
SetCompositionStyle(TextMsgFilter, startAttrib, pFETextFont);
// Apply FE clause's style
pTextRange->SetRange(_ichStart+i, _ichStart+j);
pTextRange->SetFont(pFETextFont);
pFETextFont->Release();
i = j;
}
}
pTextRange->Release();
}
else if (TextMsgFilter._uKeyBoardCodePage == CP_KOREAN)
TextMsgFilter._pTextDoc->Update(tomTrue); // Force an Update
// setup caret pos
if ( !(TextMsgFilter._uKeyBoardCodePage == CP_KOREAN))
{
if ( cpCursor > 0 )
{
cpCursor = min(cpCursor, _cchCompStr) + _ichStart;
TextMsgFilter._pTextSel->SetRange(cpCursor, cpCursor);
}
else if ( cpCursor == 0 )
{
POINT ptTopPos;
HRESULT hResult;
// make sure the beginning is in view
hResult = TextMsgFilter._pTextDoc->Range(_ichStart, _ichStart+1, &pTextRange);
Assert (pTextRange != NULL);
if (hResult == NO_ERROR)
{
if (pTextRange->GetPoint( tomStart+TA_TOP+TA_LEFT,
&(ptTopPos.x), &(ptTopPos.y) ) != NOERROR)
pTextRange->ScrollIntoView(tomStart);
pTextRange->Release();
}
}
if (cpCursor)
TextMsgFilter._pTextDoc->Unfreeze(&lCount); // Turn on display
}
if (bstr)
SysFreeString(bstr);
// setup composition window for Chinese in-caret IME
if (TextMsgFilter._uKeyBoardCodePage == CP_CHINESE_TRAD ||
TextMsgFilter._uKeyBoardCodePage == CP_CHINESE_SIM)
IMENotify ( IMN_OPENCANDIDATE, 0x01, TextMsgFilter, TRUE );
}
return S_OK; // No DefWindowProc
} // processing.
/*
* void CIme_Lev3::SetCompositionStyle (CTextMsgFilter &TextMsgFilter, CCharFormat &CF)
*
* @mfunc
* Set up a composition clause's character formmatting.
*
* @comm
* If we loaded Office's IMEShare.dll, then we ask it what the formatting
* should be, otherwise we use our own, hardwired default formatting.
*
* @devnote
* Note the use of pointers to functions when dealing with IMEShare funcs.
* This is because we dynamically load the IMEShare.dll.
*
*/
void CIme_Lev3::SetCompositionStyle (
CTextMsgFilter &TextMsgFilter,
UINT attribute,
ITextFont *pTextFont)
{
const IMESTYLE *pIMEStyle;
UINT ulID;
COLORREF crText = UINTIMEBOGUS;
COLORREF crBackground = UINTIMEBOGUS;
COLORREF crUl;
if (TextMsgFilter._fRE10Mode)
{
if (attribute > ATTR_TARGET_NOTCONVERTED)
attribute = ATTR_CONVERTED;
// IME input for 1.0 mode, need to use IME Color
if (TextMsgFilter._crComp[attribute].dwEffects & CFE_BOLD)
pTextFont->SetBold(tomTrue);
if(TextMsgFilter._crComp[attribute].dwEffects & CFE_ITALIC)
pTextFont->SetItalic(tomTrue);
if(TextMsgFilter._crComp[attribute].dwEffects & CFE_STRIKEOUT)
pTextFont->SetStrikeThrough(tomTrue);
if(TextMsgFilter._crComp[attribute].dwEffects & CFE_UNDERLINE)
pTextFont->SetUnderline(tomSingle);
pTextFont->SetForeColor(TextMsgFilter._crComp[attribute].crText);
pTextFont->SetBackColor(TextMsgFilter._crComp[attribute].crBackground);
}
else if (W32->HaveIMEShare())
{
CIMEShare *pIMEShare;
if (W32->getIMEShareObject(&pIMEShare))
{
// IMEShare 98 interface
if (pIMEShare->DwGetIMEStyle(attribute, IdstyIMEShareFBold))
pTextFont->SetBold(tomTrue);
if(pIMEShare->DwGetIMEStyle(attribute, IdstyIMEShareFItalic))
pTextFont->SetItalic(tomTrue);
if(pIMEShare->DwGetIMEStyle(attribute, IdstyIMEShareFUl))
{
ulID = pIMEShare->DwGetIMEStyle(attribute, IdstyIMEShareUKul);
if(UINTIMEBOGUS != ulID)
{
long lUnderlineCrIdx = 0;
// get color for underline
crUl = GetIMEShareColor(pIMEShare, attribute, IdstyIMEShareSubUl);
if(UINTIMEBOGUS != crUl)
{
// NOTE:- attribute is 0 based and index for EffectColor is 1 based,
// so, need to add 1 to attribute
HRESULT hResult = TextMsgFilter._pTextDoc->SetEffectColor(attribute+1, crUl);
// setup the high nibble for color index
if (hResult == NOERROR)
lUnderlineCrIdx = (attribute+1) << 4;
}
pTextFont->SetUnderline(IMEShareToTomUL(ulID) + lUnderlineCrIdx);
}
}
crText = GetIMEShareColor(pIMEShare, attribute, IdstyIMEShareSubText);
crBackground = GetIMEShareColor(pIMEShare, attribute, IdstyIMEShareSubBack);
// ignore case where text color is same as background color
if (crText != crBackground)
{
if(UINTIMEBOGUS != crText)
pTextFont->SetForeColor(crText);
if(UINTIMEBOGUS != crBackground)
pTextFont->SetBackColor(crBackground);
}
}
else
{
// IMEShare 96 interface
pIMEStyle = PIMEStyleFromAttr(attribute);
if(NULL == pIMEStyle)
goto defaultStyle;
if(FBoldIMEStyle(pIMEStyle))
pTextFont->SetBold(tomTrue);
if(FItalicIMEStyle(pIMEStyle))
pTextFont->SetItalic(tomTrue);
if(FUlIMEStyle(pIMEStyle))
{
ulID = IdUlIMEStyle (pIMEStyle);
if(UINTIMEBOGUS != ulID)
pTextFont->SetUnderline(IMEShareToTomUL(ulID));
}
crText = RGBFromIMEColorStyle(PColorStyleTextFromIMEStyle(pIMEStyle));
if(UINTIMEBOGUS != crText)
pTextFont->SetForeColor(crText);
crBackground = RGBFromIMEColorStyle(PColorStyleBackFromIMEStyle(pIMEStyle));
if(UINTIMEBOGUS != crBackground)
pTextFont->SetBackColor(crBackground);
}
}
else // default styles when no IMEShare.dll exist.
{
defaultStyle:
switch(attribute)
{ // Apply underline style.
case ATTR_INPUT:
case ATTR_CONVERTED:
pTextFont->SetUnderline(tomDotted);
break;
case ATTR_TARGET_NOTCONVERTED:
pTextFont->SetUnderline(tomSingle);
break;
case ATTR_TARGET_CONVERTED: // Target *is* selection.
{
pTextFont->SetForeColor(::GetSysColor(COLOR_HIGHLIGHTTEXT));
pTextFont->SetBackColor(::GetSysColor(COLOR_HIGHLIGHT));
}
break;
}
}
}
/*
* COLORREF CIme_Lev3::GetIMEShareColor (CIMEShare *pIMEShare, DWORD dwAttribute, DWORD dwProperty)
*
* @mfunc
* Get the IME share color for the given dwAttribute and property
*
*
* @rdesc
* COLORREF of the color
*
*/
COLORREF CIme_Lev3::GetIMEShareColor(
CIMEShare *pIMEShare,
DWORD dwAttribute,
DWORD dwProperty)
{
if (pIMEShare->DwGetIMEStyle(dwAttribute,IdstyIMEShareFSpecCol | dwProperty))
{
if (pIMEShare->DwGetIMEStyle(dwAttribute,IdstyIMEShareFSpecColText | dwProperty))
return (COLORREF) _crTextColor;
else
return (COLORREF) _crBkColor;
}
else
return (COLORREF) (pIMEShare->DwGetIMEStyle(dwAttribute,
IdstyIMEShareRGBCol | dwProperty));
}
/*
* HRESULT CIme_Lev3::IMENotify(const WPARAM wparam, const LPARAM lparam,
* CTextMsgFilter &TextMsgFilter)
*
* @mfunc
* Handle Level 3 WM_IME_NOTIFY messages.
*
* @comm
* Currently we are only interested in knowing when to update
* the n window's position.
*
* @rdesc
* HRESULT-S_FALSE for DefWindowProc processing, S_OK if not.
*/
HRESULT CIme_Lev3::IMENotify(
const WPARAM wparam, // @parm associated with message.
const LPARAM lparam, // @parm associated with message.
CTextMsgFilter &TextMsgFilter, // @parm the containing message filter.
BOOL fCCompWindow) // @parm Level3 Chinese Composition window
{
TRACEBEGIN(TRCSUBSYSFE, TRCSCOPEINTERN, "CIme_Lev3::IMENotify");
if(IMN_OPENCANDIDATE == wparam || IMN_CLOSECANDIDATE == wparam )
{
Assert (0 != lparam);
INT index; // Candidate window index.
CANDIDATEFORM cdCandForm;
POINT ptCaret;
HIMC hIMC = LocalGetImmContext(TextMsgFilter); // Get host's IME context.
if(hIMC)
{
for (index = 0; index < 32; index++) // Convert bitID to INDEX
{ // because API
if((1 << index) & lparam)
break;
}
Assert(((1 << index) & lparam) == lparam); // Only 1 set?
Assert(index < 32);
if(IMN_OPENCANDIDATE == wparam && !(TextMsgFilter._uKeyBoardCodePage == CP_KOREAN)) // Set candidate to caret.
{
HRESULT hResult;
POINT ptCurrentBottomPos;
GetCaretPos(&ptCaret); // Start at caret.
ptCaret.x = max(0, ptCaret.x);
ptCaret.y = max(0, ptCaret.y);
cdCandForm.dwStyle = CFS_CANDIDATEPOS;
if ( !fCCompWindow ) // Not positioning the Chinese composition
{ // Window.
hResult = TextMsgFilter._pTextSel->GetPoint( tomStart+tomClientCoord+TA_BOTTOM+TA_LEFT,
&(ptCurrentBottomPos.x), &(ptCurrentBottomPos.y) );
if (hResult != NOERROR)
{
RECT rcArea;
// GetPoint fails, use application rect in screen coordinates
hResult = TextMsgFilter._pTextDoc->GetClientRect(tomIncludeInset+tomClientCoord,
&(rcArea.left), &(rcArea.top),
&(rcArea.right), &(rcArea.bottom));
ptCurrentBottomPos.y = rcArea.bottom;
}
if (hResult == NOERROR)
{
if (TextMsgFilter._uKeyBoardCodePage == CP_JAPAN)
{
// Change style to CFS_EXCLUDE, this is to
// prevent the candidate window from covering
// the current selection.
cdCandForm.dwStyle = CFS_EXCLUDE;
cdCandForm.rcArea.left = ptCaret.x;
// FUTURE: for verticle text, need to adjust
// the rcArea to include the character width.
cdCandForm.rcArea.right =
cdCandForm.rcArea.left + 2;
cdCandForm.rcArea.top = ptCaret.y;
ptCaret.y = ptCurrentBottomPos.y + 4;
cdCandForm.rcArea.bottom = ptCaret.y;
}
else
ptCaret.y = ptCurrentBottomPos.y + 4;
}
}
// Most IMEs will have only 1, #0, candidate window. However, some IMEs
// may want to have a window organized alphabetically, by stroke, and
// by radical.
cdCandForm.dwIndex = index;
cdCandForm.ptCurrentPos = ptCaret;
ImmSetCandidateWindow(hIMC, &cdCandForm, TextMsgFilter._fUsingAIMM);
}
else // Reset back to CFS_DEFAULT.
{
if(ImmGetCandidateWindow(hIMC, index, &cdCandForm, TextMsgFilter._fUsingAIMM)
&& CFS_DEFAULT != cdCandForm.dwStyle)
{
cdCandForm.dwStyle = CFS_DEFAULT;
ImmSetCandidateWindow(hIMC, &cdCandForm, TextMsgFilter._fUsingAIMM);
}
}
LocalReleaseImmContext(TextMsgFilter, hIMC); // Done with IME context.
if (TextMsgFilter._fHangulToHanja == TRUE &&
IMN_CLOSECANDIDATE == wparam &&
OnWinNTFE())
{
// By pass NT4.0 Kor Bug where we didn't get a EndComposition message
// when user toggle the VK_HANJA key to terminate the conversion.
TerminateIMEComposition(TextMsgFilter, CIme::TERMINATE_NORMAL);
}
if (IMN_CLOSECANDIDATE == wparam && CP_JAPAN == TextMsgFilter._uKeyBoardCodePage)
_fUpdateWindow = TRUE;
}
}
return S_FALSE; // Allow DefWindowProc
} // processing.
/*
*
* CIme_Lev3::IMEMouseOperation (CTextMsgFilter &TextMsgFilter, UINT msg)
*
* @mfunc if current IME support Mouse operation, need to pass
* mouse events to IME for processing
*
* @rdesc
* BOOL-TRUE if IME handled the mouse events
*
*/
BOOL CIme_Lev3::IMEMouseOperation(
CTextMsgFilter &TextMsgFilter, // @parm the containing message filter.
UINT msg) // @parm message id
{
TRACEBEGIN(TRCSUBSYSFE, TRCSCOPEINTERN, "CIme_Lev3::IMEMouseOperation");
BOOL bRetCode = FALSE;
BOOL fButtonPressed = FALSE;
WORD wButtons = 0;
POINT ptCursor;
WPARAM wParamIME;
HWND hHostWnd = TextMsgFilter._hwnd;
long hWnd;
if (!hHostWnd) // Windowless mode...
{
if (TextMsgFilter._pTextDoc->GetWindow(&hWnd) != S_OK || !hWnd)
return FALSE;
hHostWnd = (HWND)(DWORD_PTR)hWnd;
}
if (IMESupportMouse(TextMsgFilter))
{
switch (msg)
{
case WM_LBUTTONDOWN:
case WM_RBUTTONDOWN:
case WM_MBUTTONDOWN:
fButtonPressed = TRUE;
//fall through.
case WM_SETCURSOR:
case WM_MOUSEMOVE:
case WM_LBUTTONUP:
case WM_LBUTTONDBLCLK:
case WM_RBUTTONUP:
case WM_RBUTTONDBLCLK:
case WM_MBUTTONUP:
case WM_MBUTTONDBLCLK:
if (GetKeyState(VK_LBUTTON) & 0x80)
wButtons |= IMEMOUSE_LDOWN;
if (GetKeyState(VK_MBUTTON) & 0x80)
wButtons |= IMEMOUSE_MDOWN;
if (GetKeyState(VK_RBUTTON) & 0x80)
wButtons |= IMEMOUSE_RDOWN;
break;
default:
return FALSE;
}
// change in button since last message?
if ((wButtons != LOBYTE(LOWORD(_wParamBefore))) && GetCapture() == hHostWnd)
{
fButtonPressed = FALSE;
wButtons = 0;
ReleaseCapture();
}
if (GetCursorPos(&ptCursor))
{
ITextRange *pTextRange;
HRESULT hResult;
long ichCursor;
// get cp at current Cursor position
hResult = TextMsgFilter._pTextDoc->RangeFromPoint(ptCursor.x, ptCursor.y,
&pTextRange);
if (hResult != NOERROR)
return FALSE;
hResult = pTextRange->GetStart(&ichCursor);
pTextRange->Release();
if (hResult != NOERROR)
return FALSE;
// click within composition text?
if (_ichStart <= ichCursor && ichCursor <= _ichStart + _cchCompStr)
{
wParamIME = MAKEWPARAM(wButtons, ichCursor - _ichStart);
fButtonPressed &= (_wParamBefore & 0xff) == 0;
if (_wParamBefore != wParamIME || msg == WM_MOUSEMOVE && !fButtonPressed)
{
HIMC hIMC = LocalGetImmContext(TextMsgFilter);
_wParamBefore = wParamIME;
if (hIMC)
{
bRetCode = SendMessage(_hwndIME, MSIMEMouseMsg, _wParamBefore, hIMC);
LocalReleaseImmContext(TextMsgFilter, hIMC);
}
}
else
// no change from last time, no need to send message to IME
bRetCode = TRUE;
if (bRetCode && fButtonPressed && GetCapture() != hHostWnd)
SetCapture(hHostWnd);
}
else if (GetCapture() == hHostWnd) //We don't want to determine while dragging...
return TRUE;
}
}
return bRetCode;
}
/*
*
* CIme_Lev3::IMESupportMouse (CTextMsgFilter &TextMsgFilter)
*
* @mfunc check if current IME supports Mouse events. This should be
* a feature for IME Level 3.
*
* @comm _sIMESupportMouse is a flag with the following values:
* == 0 if we haven't checked IME mouse support
* == -1 if we have checked and IME doesn't support mouse events
* == 1 if we have checked and IME supports mouse events and we have
* retrieved the IME hWnd
*/
BOOL CIme_Lev3::IMESupportMouse(
CTextMsgFilter &TextMsgFilter) // @parm the containing message filter.
{
TRACEBEGIN(TRCSUBSYSFE, TRCSCOPEINTERN, "CIme_Lev3::IMESupportMouse");
HIMC hIMC; // Host's IME context.
HWND hHostWnd;
long hWnd;
if (!MSIMEMouseMsg || _sIMESuportMouse == -1)
return FALSE; // No mouse operation support
if (_sIMESuportMouse == 1)
return TRUE; // IME supports mouse operation
hHostWnd = TextMsgFilter._hwnd;
if (!hHostWnd) // Windowless mode...
{
if (TextMsgFilter._pTextDoc->GetWindow(&hWnd) != S_OK || !hWnd)
return FALSE;
hHostWnd = (HWND)(DWORD_PTR)hWnd;
}
// Check if this IME supports mouse operation
hIMC = LocalGetImmContext(TextMsgFilter); // Get host's IME context.
_sIMESuportMouse = -1; // Init. to no support
if(hIMC)
{
_hwndIME = ImmGetDefaultIMEWnd(hHostWnd, TextMsgFilter._fUsingAIMM);
LocalReleaseImmContext(TextMsgFilter, hIMC);
// SendMessage returns TRUE if IME supports mouse operation
if (_hwndIME && SendMessage(_hwndIME, MSIMEMouseMsg, (WPARAM)IMEMOUSE_VERSION, hIMC) )
_sIMESuportMouse = 1;
}
return (_sIMESuportMouse == 1);
}
/*
* BOOL IMEHangeulToHanja (&TextMsgFilter)
*
* @func
* Initiates an IME composition string edit to convert Korean Hanguel to Hanja.
* @comm
* Called from the message loop to handle VK_KANJI_KEY.
*
* @devnote
* We decide if we need to do a conversion by checking:
* - the Fonot is a Korean font,
* - the character is a valid SBC or DBC,
* - ImmEscape accepts the character and bring up a candidate window
*
* @rdesc
* BOOL - FALSE for no conversion. TRUE if OK.
*/
BOOL IMEHangeulToHanja (
CTextMsgFilter &TextMsgFilter) // @parm the containing message filter.
{
TRACEBEGIN(TRCSUBSYSFE, TRCSCOPEINTERN, "IMEHangeulToHanja");
if(!TextMsgFilter.IsIMEComposition())
{
if(TextMsgFilter._pTextSel->CanEdit(NULL) == NOERROR)
{
WCHAR szCurrentChar;
long cCurrentChar;
HRESULT hResult;
HKL hKL = GetKeyboardLayout(0x0FFFFFFFF);
HIMC hIMC;
if (!hKL)
goto Exit;
hIMC = LocalGetImmContext(TextMsgFilter);
if (!hIMC)
goto Exit;
// Collapse to cpMin
hResult = TextMsgFilter._pTextSel->Collapse(tomStart);
// get the current character
hResult = TextMsgFilter._pTextSel->GetChar(&cCurrentChar);
if (hResult != NOERROR)
goto Exit;
szCurrentChar = (WCHAR)cCurrentChar;
// Check if the IME has a conversion for this Hangeul character.
if (ImmEscape(hKL, hIMC, IME_ESC_HANJA_MODE, (LPVOID)&szCurrentChar, TextMsgFilter._fUsingAIMM) != FALSE)
{
ITextRange *pTextRange;
POINT ptMiddlePos;
LONG cpCurrent;
hResult = TextMsgFilter._pTextSel->GetStart(&cpCurrent);
if (hResult == S_OK)
{
hResult = TextMsgFilter._pTextDoc->Range(cpCurrent, cpCurrent+1, &pTextRange);
if (hResult == S_OK && pTextRange)
{
// Check if the character is in view
if (pTextRange->GetPoint( tomEnd+TA_BASELINE+TA_LEFT,
&(ptMiddlePos.x), &(ptMiddlePos.y) ) != NOERROR)
pTextRange->ScrollIntoView(tomEnd);
pTextRange->Release();
}
}
TextMsgFilter._fHangulToHanja = TRUE;
TextMsgFilter._ime = new CIme_HangeulToHanja(TextMsgFilter);
if(TextMsgFilter.IsIMEComposition())
{
// start IME composition for the conversion
LocalReleaseImmContext(TextMsgFilter, hIMC);
return TextMsgFilter._ime->StartComposition(TextMsgFilter);
}
else
TextMsgFilter._fHangulToHanja = FALSE;
}
LocalReleaseImmContext(TextMsgFilter, hIMC);
}
}
Exit:
return S_FALSE;
}
/*
* CIme_HangeulToHanja::CIme_HangeulToHanja()
*
* @mfunc
* CIme_HangeulToHanja Constructor.
*
*
*/
CIme_HangeulToHanja::CIme_HangeulToHanja(CTextMsgFilter &TextMsgFilter) :
CIme_Lev3(TextMsgFilter)
{
}
/*
* HRESULT CIme_HangeulToHanja::StartComposition(CTextMsgFilter &TextMsgFilter)
*
* @mfunc
* Begin CIme_HangeulToHanja composition string processing.
*
* @comm
* Call Level3::StartComposition. Then setup the Korean block
* caret for the Hanguel character.
*
* @rdesc
* Need to adjust _ichStart and _cchCompStr to make the Hanguel character
* "become" a composition character.
*
* @rdesc
* HRESULT-S_FALSE for DefWindowProc processing, S_OK if not.
*/
HRESULT CIme_HangeulToHanja::StartComposition(
CTextMsgFilter &TextMsgFilter ) // @parm the containing message filter.
{
TRACEBEGIN(TRCSUBSYSFE, TRCSCOPEINTERN, "CIme_HangeulToHanja::StartComposition");
HRESULT hr;
hr = CIme_Lev3::StartComposition(TextMsgFilter);
// initialize to 1 so Composition string will get rid of the selected Hangeul
_cchCompStr = 1;
// turn on undo
TextMsgFilter._pTextDoc->Undo(tomResume, NULL);
// Setup Block caret mode
TextMsgFilter._pTextDoc->SetCaretType(tomKoreanBlockCaret);
return hr;
}
/*
* HRESULT CIme_HangeulToHanja::CompositionString(const LPARAM lparam, CTextMsgFilter &TextMsgFilter)
*
* @mfunc
* Handle CIme_HangeulToHanja WM_IME_COMPOSITION messages.
*
* @comm
* call CIme_Lev3::CompositionString to get rid of the selected Hanguel character,
* then setup the format for the next Composition message.
*
* @devnote
* When the next Composition message comes in and that we are no longer in IME,
* the new character will use the format as set here.
*/
HRESULT CIme_HangeulToHanja::CompositionString(
const LPARAM lparam, // @parm associated with message
CTextMsgFilter &TextMsgFilter)
{
TRACEBEGIN(TRCSUBSYSFE, TRCSCOPEINTERN, "CIme_HangeulToHanja::CompositionString");
CIme_Lev3::CompositionString(lparam, TextMsgFilter);
return S_OK;
}
/*
* HRESULT CIme_Protected::CompositionString(const LPARAM lparam, CTextMsgFilter &TextMsgFilter)
*
* @mfunc
* Handle CIme_Protected WM_IME_COMPOSITION messages.
*
* @comm
* Just throw away the result string since we are
* in read-only or protected mode
*
*
* @rdesc
* HRESULT-S_FALSE for DefWindowProc processing, S_OK if not.
*
*/
HRESULT CIme_Protected::CompositionString (
const LPARAM lparam, // @parm associated with message.
CTextMsgFilter &TextMsgFilter) // @parm the containing message filter.
{
TRACEBEGIN(TRCSUBSYSFE, TRCSCOPEINTERN, "CIme_Protected::CompositionString");
if(CLEANUP_COMPOSITION_STRING() || HAVE_RESULT_STRING()) // If result string..
{
LONG cch = 0;
HIMC hIMC = LocalGetImmContext(TextMsgFilter); // Get host's IME context.
WCHAR szCompStr[256];
if(hIMC) // Get result string.
{
cch = GetCompositionStringInfo(hIMC, GCS_RESULTSTR,
szCompStr, sizeof(szCompStr)/sizeof(szCompStr[0]),
NULL, 0, NULL, NULL, TextMsgFilter._uKeyBoardCodePage, FALSE, TextMsgFilter._fUsingAIMM);
LocalReleaseImmContext(TextMsgFilter, hIMC); // Done with IME context.
}
return NOERROR; // Don't want WM_IME_CHARs.
}
// Terminate composition to force a end composition message
TerminateIMEComposition(TextMsgFilter, CIme::TERMINATE_FORCECANCEL);
return S_FALSE;
}
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