candui.c

蒙古文输入法源码

/**********************************************************************/
/* AdjustCandBoundry                                                  */
/**********************************************************************/
void PASCAL AdjustCandBoundry(
    LPPOINT lpptCandWnd)            // the position
{

    RECT  rcWorkArea;

#ifdef MUL_MONITOR
    {
        RECT rcCandWnd;

        *(LPPOINT)&rcCandWnd = *(LPPOINT)lpptCandWnd;

        rcCandWnd.right = rcCandWnd.left + sImeG.xCandWi;
        rcCandWnd.bottom = rcCandWnd.top + sImeG.yCandHi;

        rcWorkArea = ImeMonitorWorkAreaFromRect(&rcCandWnd);
    }
#else
    rcWorkArea = sImeG.rcWorkArea;
#endif
    if (lpptCandWnd->x < rcWorkArea.left) {
        lpptCandWnd->x = rcWorkArea.left;
    } else if (lpptCandWnd->x + sImeG.xCandWi > rcWorkArea.right) {
        lpptCandWnd->x = rcWorkArea.right - sImeG.xCandWi;
    }

    if (lpptCandWnd->y < rcWorkArea.top) {
        lpptCandWnd->y = rcWorkArea.top;
    } else if (lpptCandWnd->y + sImeG.yCandHi > rcWorkArea.bottom) {
        lpptCandWnd->y = rcWorkArea.bottom - sImeG.yCandHi;
    }

    return;
}

/**********************************************************************/
/* SetCandPosition()                                                  */
/**********************************************************************/
LRESULT PASCAL SetCandPosition(
    HWND hCandWnd)
{
    HWND           hUIWnd;
    HIMC           hIMC;
    LPINPUTCONTEXT lpIMC;
    POINT          ptNew;

    hUIWnd = GetWindow(hCandWnd, GW_OWNER);

    hIMC = (HIMC)GetWindowLongPtr(hUIWnd, IMMGWLP_IMC);
    if (!hIMC) {
        return (1L);
    }

    lpIMC = (LPINPUTCONTEXT)ImmLockIMC(hIMC);
    if (!lpIMC) {
        return (1L);
    }

    ptNew = lpIMC->cfCandForm[0].ptCurrentPos;

    ClientToScreen((HWND)lpIMC->hWnd, &ptNew);

    if (lpIMC->cfCandForm[0].dwStyle & CFS_FORCE_POSITION) {
    } else if (lpIMC->cfCandForm[0].dwStyle == CFS_CANDIDATEPOS) {
        AdjustCandBoundry(&ptNew);
    } else if (lpIMC->cfCandForm[0].dwStyle == CFS_EXCLUDE) {
           if(!sImeG.IC_Trace) {
               CalcCandPos(hIMC, hUIWnd, &ptNew);
        }
        AdjustCandBoundry(&ptNew);
    }

    SetWindowPos(hCandWnd, NULL, ptNew.x, ptNew.y,
        0, 0, SWP_NOACTIVATE|SWP_NOSIZE|SWP_NOZORDER);

    ImmUnlockIMC(hIMC);

    return (0L);
}

/**********************************************************************/
/* ShowCand()                                                         */
/**********************************************************************/
void PASCAL ShowCand(           // Show the candidate window
    HWND    hUIWnd,
    int     nShowCandCmd)
{
    HGLOBAL  hUIPrivate;
    LPUIPRIV lpUIPrivate;

    hUIPrivate = (HGLOBAL)GetWindowLongPtr(hUIWnd, IMMGWLP_PRIVATE);
    if (!hUIPrivate) {          // can not darw candidate window
        return;
    }

    lpUIPrivate = (LPUIPRIV)GlobalLock(hUIPrivate);
    if (!lpUIPrivate) {         // can not draw candidate window
        return;
    }

    if (lpUIPrivate->nShowCandCmd == nShowCandCmd) {
        goto SwCandNoChange;
    }

    if (nShowCandCmd == SW_HIDE) {
        lpUIPrivate->fdwSetContext &= ~(ISC_HIDE_CAND_WINDOW);
    }

    if (!lpUIPrivate->hCandWnd) {
        // not in show candidate window mode
    } else if (lpUIPrivate->nShowCandCmd == nShowCandCmd) {
    } else {
        if(nShowCandCmd == SW_HIDE) {
            uOpenCand = 0;
        } else {
            HIMC           hIMC;
            POINT          ptSTWPos;
            int            Comp_CandWndLen;
            RECT           rcWorkArea;

            uOpenCand = 1;

            // reset status window for LINE_UI(FIX_UI)
            hIMC = (HIMC)GetWindowLongPtr(hUIWnd, IMMGWLP_IMC);
            if (!hIMC) {
                goto ShowCand;
            }

               ImmGetStatusWindowPos(hIMC, (LPPOINT)&ptSTWPos);
#ifdef MUL_MONITOR
            rcWorkArea = ImeMonitorWorkAreaFromPoint(ptSTWPos);
#else
            rcWorkArea = sImeG.rcWorkArea;
#endif
            Comp_CandWndLen = 0;
            if(uOpenCand) {
                Comp_CandWndLen += sImeG.xCandWi + UI_MARGIN;
                if(uStartComp) {
                    Comp_CandWndLen += lpImeL->xCompWi + UI_MARGIN;
                }
                if(ptSTWPos.x + sImeG.xStatusWi + Comp_CandWndLen > rcWorkArea.right) {
                    PostMessage(GetCompWnd(hUIWnd), 
                                WM_IME_NOTIFY, 
                                IMN_SETCOMPOSITIONWINDOW, 
                                0);
                }
            }
        }
        
ShowCand:
        ShowWindow(lpUIPrivate->hCandWnd, nShowCandCmd);
        lpUIPrivate->nShowCandCmd = nShowCandCmd;
    }

SwCandNoChange:
    GlobalUnlock(hUIPrivate);
    return;
}

/**********************************************************************/
/* OpenCand                                                           */
/**********************************************************************/
void PASCAL OpenCand(
    HWND hUIWnd)
{
    HGLOBAL        hUIPrivate;
    LPUIPRIV       lpUIPrivate;
    HIMC           hIMC;
    LPINPUTCONTEXT lpIMC;
    POINT          ptWnd;

    hUIPrivate = (HGLOBAL)GetWindowLongPtr(hUIWnd, IMMGWLP_PRIVATE);
    if (!hUIPrivate) {          // can not darw candidate window
        return;
    }

    lpUIPrivate = (LPUIPRIV)GlobalLock(hUIPrivate);
    if (!lpUIPrivate) {         // can not draw candidate window
        return;
    }

    lpUIPrivate->fdwSetContext |= ISC_SHOWUICANDIDATEWINDOW;

    hIMC = (HIMC)GetWindowLongPtr(hUIWnd, IMMGWLP_IMC);
    if (!hIMC) {
        goto OpenCandUnlockUIPriv;
    }

    lpIMC = (LPINPUTCONTEXT)ImmLockIMC(hIMC);
    if (!lpIMC) {
        goto OpenCandUnlockUIPriv;
    }

    if (lpIMC->cfCandForm[0].dwIndex == 0) {
        
        ptWnd = lpIMC->cfCandForm[0].ptCurrentPos;

        ClientToScreen(lpIMC->hWnd, &ptWnd);

        if (lpIMC->cfCandForm[0].dwStyle & CFS_FORCE_POSITION) {
        } else if (lpIMC->cfCandForm[0].dwStyle == CFS_EXCLUDE) {
               POINT ptCaret;

            AdjustCandBoundry(&ptWnd);
            if((!sImeG.IC_Trace) || (!GetCaretPos(&ptCaret))) {

                if(GetCompWnd(hUIWnd)) {
                    ptWnd.x = ptWnd.y = 0;
                    ClientToScreen(lpIMC->hWnd, &ptWnd);
                    ptWnd.x -= lpImeL->cxCompBorder + 1;
                    ptWnd.y -= lpImeL->cyCompBorder + 1;
                } else {
                    ptWnd.x = lpImeL->cxCompBorder + 1;
                    ptWnd.y = lpImeL->cyCompBorder + 1;
                }

                   CalcCandPos(hIMC, hUIWnd, &ptWnd);

                lpIMC->cfCandForm[0].dwStyle |= CFS_CANDIDATEPOS;
                lpIMC->cfCandForm[0].ptCurrentPos = ptWnd;
                ScreenToClient(lpIMC->hWnd, &lpIMC->cfCandForm[0].ptCurrentPos);
            } else {
                AdjustCandPos(hIMC, &ptWnd);
            }
        } else if (lpIMC->cfCandForm[0].dwStyle == CFS_CANDIDATEPOS) {
            AdjustCandBoundry(&ptWnd);
        } else {
            if (lpUIPrivate->nShowCompCmd != SW_HIDE) {
                ptWnd.x = ptWnd.y = 0;
                ClientToScreen(lpUIPrivate->hCompWnd, &ptWnd);
            } else {
                ptWnd = lpIMC->cfCompForm.ptCurrentPos;
                ClientToScreen(lpIMC->hWnd, &ptWnd);
            }

            ptWnd.x -= lpImeL->cxCompBorder + 1;
            ptWnd.y -= lpImeL->cyCompBorder + 1;

               CalcCandPos(hIMC, hUIWnd, &ptWnd);

            lpIMC->cfCandForm[0].dwStyle |= CFS_CANDIDATEPOS;
            lpIMC->cfCandForm[0].ptCurrentPos = ptWnd;
            ScreenToClient(lpIMC->hWnd, &lpIMC->cfCandForm[0].ptCurrentPos);
        }
    } else {
        // make cand windows trace comp window !
        if (lpUIPrivate->nShowCompCmd != SW_HIDE) {
            ptWnd.x = ptWnd.y = 0;
            ClientToScreen(lpUIPrivate->hCompWnd, &ptWnd);
        } else {
            ptWnd = lpIMC->cfCompForm.ptCurrentPos;
            ClientToScreen(lpIMC->hWnd, &ptWnd);
        }

        ptWnd.x -= lpImeL->cxCompBorder + 1;
        ptWnd.y -= lpImeL->cyCompBorder + 1;

           CalcCandPos(hIMC, hUIWnd, &ptWnd);

        lpIMC->cfCandForm[0].dwStyle |= CFS_CANDIDATEPOS;
        lpIMC->cfCandForm[0].ptCurrentPos = ptWnd;
        ScreenToClient(lpIMC->hWnd, &lpIMC->cfCandForm[0].ptCurrentPos);
    }

    ImmUnlockIMC(hIMC);

    if (lpUIPrivate->hCandWnd) {
        SetWindowPos(lpUIPrivate->hCandWnd, 
                     NULL,
                     ptWnd.x, 
                     ptWnd.y,
                     0, 
                     0, 
                     SWP_NOACTIVATE|SWP_NOSIZE|SWP_NOZORDER);
    } else {
        lpUIPrivate->hCandWnd = CreateWindowEx(
                                     WS_EX_WINDOWEDGE|WS_EX_DLGMODALFRAME,
                                     szCandClassName, 
                                     NULL, 
                                     WS_POPUP|WS_DISABLED,
                                     ptWnd.x,
                                     ptWnd.y,
                                     sImeG.xCandWi, 
                                     sImeG.yCandHi,
                                     hUIWnd, 
                                     (HMENU)NULL, 
                                     hInst, 
                                     NULL);

        SetWindowLong(lpUIPrivate->hCandWnd, UI_MOVE_OFFSET, WINDOW_NOT_DRAG);
        SetWindowLong(lpUIPrivate->hCandWnd, UI_MOVE_XY, 0L);
    }

    ShowCand(hUIWnd, SW_SHOWNOACTIVATE);

OpenCandUnlockUIPriv:
    GlobalUnlock(hUIPrivate);
    return;
}

/**********************************************************************/
/* CloseCand                                                          */
/**********************************************************************/
void PASCAL CloseCand(
    HWND hUIWnd)
{
    uOpenCand = 0;
    ShowCand(hUIWnd, SW_HIDE);
    return;
}

/**********************************************************************/
/* DestroyCandWindow                                                  */
/**********************************************************************/
void PASCAL DestroyCandWindow(
    HWND hCandWnd)
{
    HGLOBAL  hUIPrivate;
    LPUIPRIV lpUIPrivate;

    if (GetWindowLong(hCandWnd, UI_MOVE_OFFSET) != WINDOW_NOT_DRAG) {
        // undo the drag border
        DrawDragBorder(hCandWnd,
            GetWindowLong(hCandWnd, UI_MOVE_XY),
            GetWindowLong(hCandWnd, UI_MOVE_OFFSET));
    }

    hUIPrivate = (HGLOBAL)GetWindowLongPtr(GetWindow(hCandWnd, GW_OWNER),
        IMMGWLP_PRIVATE);
    if (!hUIPrivate) {          // can not darw candidate window
        return;
    }

    lpUIPrivate = (LPUIPRIV)GlobalLock(hUIPrivate);
    if (!lpUIPrivate) {         // can not draw candidate window
        return;
    }

    lpUIPrivate->nShowCandCmd = SW_HIDE;

    lpUIPrivate->hCandWnd = (HWND)NULL;

    GlobalUnlock(hUIPrivate);
    return;
}

/**********************************************************************/
/* MouseSelectCandStr()                                               */
/**********************************************************************/
void PASCAL MouseSelectCandStr(
    HWND    hCandWnd,
    LPPOINT lpCursor)
{
    HIMC            hIMC;
    LPINPUTCONTEXT  lpIMC;
    LPCANDIDATEINFO lpCandInfo;
    LPCANDIDATELIST lpCandList;
    DWORD           dwValue;

    hIMC = (HIMC)GetWindowLongPtr(GetWindow(hCandWnd, GW_OWNER), IMMGWLP_IMC);
    if (!hIMC) {
        return;
    }

    lpIMC = (LPINPUTCONTEXT)ImmLockIMC(hIMC);
    if (!lpIMC) {
        return;
    }

    if (!lpIMC->hCandInfo) {
        ImmUnlockIMC(hIMC);
        return;
    }

    lpCandInfo = (LPCANDIDATEINFO)ImmLockIMCC(lpIMC->hCandInfo);
    if (!lpCandInfo) {
        ImmUnlockIMC(hIMC);
        return;
    }

    dwValue = (lpCursor->y - sImeG.rcCandText.top) / sImeG.yChiCharHi;

    lpCandList = (LPCANDIDATELIST)((LPBYTE)lpCandInfo +
        lpCandInfo->dwOffset[0]);

    dwValue = dwValue + lpCandList->dwSelection /
        lpCandList->dwPageSize * lpCandList->dwPageSize;

    if (dwValue >= lpCandList->dwCount) {
        // invalid choice
        MessageBeep((UINT)-1);
    } else {
        NotifyIME(hIMC, NI_SELECTCANDIDATESTR, 0, dwValue);
    }

    ImmUnlockIMCC(lpIMC->hCandInfo);

    ImmUnlockIMC(hIMC);

    return;
}

/**********************************************************************/
/* CandPageDownUP()                                                   */
/**********************************************************************/
void PASCAL CandPageDownUP(
    HWND hCandWnd,
    UINT uCandDownUp)
{
    HIMC            hIMC;
    LPINPUTCONTEXT  lpIMC;
    LPPRIVCONTEXT   lpImcP;
    LPCANDIDATEINFO lpCandInfo;
    LPCANDIDATELIST lpCandList;
    HDC             hDC;
    HBITMAP         hCandHpBmp, hCandUpBmp, hCandDpBmp, hCandEpBmp;
    HBITMAP         hOldBmp;
    HDC             hMemDC;

    // change candlist
    hIMC = (HIMC)GetWindowLongPtr(GetWindow(hCandWnd, GW_OWNER), IMMGWLP_IMC);
    if (!hIMC) {
        return;
    }