ui.cpp

输入法源代码自由拼音输入法源代码（T9）

/*++

Copyright (c) 1990-1999 Microsoft Corporation, All Rights Reserved

Module Name:

    ui.c


++*/


#include <windows.h>
#include <imm.h>
#include "imedefs.h"
#include "resource.h"

/**********************************************************************/
/* CreateUIWindow()                                                   */
/**********************************************************************/
void PASCAL CreateUIWindow(             // create composition window
    HWND hUIWnd)
{
    HGLOBAL hUIPrivate;

    // create storage for UI setting
    hUIPrivate = (HGLOBAL)GlobalAlloc(GHND, sizeof(UIPRIV));
    if (!hUIPrivate) {     
        return;
    }
    memset(hUIPrivate, 0, sizeof(UIPRIV));
    SetWindowLong(hUIWnd, IMMGWLP_PRIVATE, (LONG_PTR)hUIPrivate);
    // set the default position for UI window, it is hide now
    SetWindowPos(hUIWnd, NULL, 0, 0, 0, 0, SWP_NOACTIVATE|SWP_NOZORDER);
    ShowWindow(hUIWnd, SW_SHOWNOACTIVATE);
    return;
}

/**********************************************************************/
/* DestroyUIWindow()                                                  */
/**********************************************************************/
void PASCAL DestroyUIWindow(            // destroy composition window
    HWND hUIWnd)
{
    HGLOBAL  hUIPrivate;
    LPUIPRIV lpUIPrivate;

    hUIPrivate = (HGLOBAL)GetWindowLong(hUIWnd, IMMGWLP_PRIVATE);
    if (!hUIPrivate) {     
        return;
    }

    lpUIPrivate = (LPUIPRIV)GlobalLock(hUIPrivate);
    if (!lpUIPrivate) {    
        return;
    }
    // composition window need to be destroyed
    if (lpUIPrivate->hCompWnd) {
        DestroyWindow(lpUIPrivate->hCompWnd);
        lpUIPrivate->hCompWnd = NULL;
    }

    // candidate window need to be destroyed
    if (lpUIPrivate->hCandWnd) {
        DestroyWindow(lpUIPrivate->hCandWnd);
	 lpUIPrivate->hCandWnd = NULL;
    }

    // status window need to be destroyed
    if (lpUIPrivate->hStatusWnd) {
        DestroyWindow(lpUIPrivate->hStatusWnd);
	 lpUIPrivate->hStatusWnd = NULL;
    }

    GlobalUnlock(hUIPrivate);
    // free storage for UI settings
    GlobalFree(hUIPrivate);
    return;
}

/**********************************************************************/
/**********************************************************************/
/* StatusWndMsg()                                                     */
/**********************************************************************/
void PASCAL StatusWndMsg(       // set the show hide state and
    HWND        hUIWnd,
    BOOL        fOn)
{
    HGLOBAL  hUIPrivate;
    HIMC     hIMC;
    HWND     hStatusWnd;
    register LPUIPRIV lpUIPrivate;

    hUIPrivate = (HGLOBAL)GetWindowLong(hUIWnd, IMMGWLP_PRIVATE);
    if (!hUIPrivate) {
        return;
    }

    lpUIPrivate = (LPUIPRIV)GlobalLock(hUIPrivate);
    if (!lpUIPrivate) {
        return;
    }

    hIMC = (HIMC)GetWindowLong(hUIWnd, IMMGWLP_IMC);
    if (!hIMC) {
        GlobalUnlock(hUIPrivate);
    return;
    }

    if (fOn) {
        lpUIPrivate->fdwSetContext |= ISC_OPEN_STATUS_WINDOW;

        if (!lpUIPrivate->hStatusWnd) {
            OpenStatus(hUIWnd);
        }
    } else {
        lpUIPrivate->fdwSetContext &= ~(ISC_OPEN_STATUS_WINDOW);
    }

    hStatusWnd = lpUIPrivate->hStatusWnd;

    GlobalUnlock(hUIPrivate);

    if (!hStatusWnd) {
        return;
    }

    if (!fOn) {
        register DWORD fdwSetContext;

        fdwSetContext = lpUIPrivate->fdwSetContext &
            (ISC_SHOWUICOMPOSITIONWINDOW|ISC_HIDE_COMP_WINDOW);

        if (fdwSetContext == ISC_HIDE_COMP_WINDOW) {
            ShowComp(hUIWnd, SW_HIDE);
        }

        fdwSetContext = lpUIPrivate->fdwSetContext &
            (ISC_SHOWUICANDIDATEWINDOW|ISC_HIDE_CAND_WINDOW);

        if (fdwSetContext == ISC_HIDE_CAND_WINDOW) {
            ShowCand(hUIWnd, SW_HIDE);
        }

        ShowStatus( hUIWnd, SW_HIDE);
    } else if (hIMC) {
        ShowStatus(hUIWnd, SW_SHOWNOACTIVATE);
    } else {
        ShowStatus(hUIWnd, SW_HIDE);
    }

    return;
}

/**********************************************************************/
/* ShowUI()                                                           */
/**********************************************************************/
void PASCAL ShowUI(             // show the sub windows
    HWND   hUIWnd,
    int    nShowCmd)
{
    HIMC           hIMC;
    LPINPUTCONTEXT lpIMC;
    LPPRIVCONTEXT  lpImcP;
    HGLOBAL        hUIPrivate;
    LPUIPRIV       lpUIPrivate;

    if (nShowCmd == SW_HIDE) {
    }else if (!(hIMC = (HIMC)GetWindowLong(hUIWnd, IMMGWLP_IMC))) {
        nShowCmd = SW_HIDE;
    } else if (!(lpIMC = (LPINPUTCONTEXT)ImmLockIMC(hIMC))) {
        nShowCmd = SW_HIDE;
    } else if (!(lpImcP = (LPPRIVCONTEXT)ImmLockIMCC(lpIMC->hPrivate))) {
        ImmUnlockIMC(hIMC);
        nShowCmd = SW_HIDE;
    } else {
    }

    if (nShowCmd == SW_HIDE) {
        ShowStatus(hUIWnd, nShowCmd);
        ShowComp(hUIWnd, nShowCmd);
        ShowCand(hUIWnd, nShowCmd);
        return;
    }

    hUIPrivate = (HGLOBAL)GetWindowLong(hUIWnd, IMMGWLP_PRIVATE);
    if (!hUIPrivate) {          // can not darw status window
        goto ShowUIUnlockIMCC;
    }

    lpUIPrivate = (LPUIPRIV)GlobalLock(hUIPrivate);
    if (!lpUIPrivate) {         // can not draw status window
        goto ShowUIUnlockIMCC;
    }

    lpUIPrivate->fdwSetContext |= ISC_SHOWUICOMPOSITIONWINDOW;

    if ((lpUIPrivate->fdwSetContext & ISC_SHOWUICOMPOSITIONWINDOW) &&
        (lpImcP->fdwImeMsg & MSG_ALREADY_START)) {
        if (lpUIPrivate->hCompWnd) {

            if (lpUIPrivate->nShowCompCmd != SW_HIDE) {
                // some time the WM_NCPAINT is eaten by the app
                RedrawWindow(lpUIPrivate->hCompWnd, NULL, NULL,
                    RDW_FRAME|RDW_INVALIDATE|RDW_ERASE);
            }
            if (lpUIPrivate->nShowCompCmd == SW_HIDE) {
                ShowComp(hUIWnd, nShowCmd);
            }
        } else {
            StartComp(hUIWnd);
        }
    } else if (lpUIPrivate->nShowCompCmd == SW_HIDE) {
    } else if (lpUIPrivate->fdwSetContext & ISC_OPEN_STATUS_WINDOW) {
        lpUIPrivate->fdwSetContext |= ISC_HIDE_COMP_WINDOW;
    } else {
        ShowComp(hUIWnd, SW_HIDE);
    }

    if ((lpUIPrivate->fdwSetContext & ISC_SHOWUICANDIDATEWINDOW) &&
        (lpImcP->fdwImeMsg & MSG_ALREADY_OPEN)) {
        if (lpUIPrivate->hCandWnd) {
            if (lpUIPrivate->nShowCandCmd != SW_HIDE) {
                // some time the WM_NCPAINT is eaten by the app
                RedrawWindow(lpUIPrivate->hCandWnd, NULL, NULL,
                    RDW_FRAME|RDW_INVALIDATE|RDW_ERASE);
            }
            if (lpUIPrivate->nShowCandCmd == SW_HIDE) {
               ShowCand(hUIWnd, nShowCmd);
            }
        } else {
            OpenCand(hUIWnd);
        }
    } else if (lpUIPrivate->nShowCandCmd == SW_HIDE) {
    } else if (lpUIPrivate->fdwSetContext & ISC_OPEN_STATUS_WINDOW) {
        lpUIPrivate->fdwSetContext |= ISC_HIDE_CAND_WINDOW;
    } else {
        ShowCand(hUIWnd, SW_HIDE);
    }

    if (lpUIPrivate->fdwSetContext & ISC_OPEN_STATUS_WINDOW) {
        if (!lpUIPrivate->hStatusWnd) {
            OpenStatus(hUIWnd);
        }else{
	      if (lpUIPrivate->nShowStatusCmd != SW_HIDE) {
	        // some time the WM_NCPAINT is eaten by the app
	        RedrawWindow(lpUIPrivate->hStatusWnd, NULL, NULL,
	           RDW_FRAME|RDW_INVALIDATE|RDW_ERASE);
	      }else{
            SendMessage(lpUIPrivate->hStatusWnd, WM_IME_NOTIFY,
            IMN_SETSTATUSWINDOWPOS, 0);
            ShowStatus(hUIWnd, nShowCmd);
	     }
       }
    } 
    // we switch to this hIMC
    lpUIPrivate->hIMC = hIMC;

    GlobalUnlock(hUIPrivate);

ShowUIUnlockIMCC:
    ImmUnlockIMCC(lpIMC->hPrivate);
    ImmUnlockIMC(hIMC);

    return;
}

/**********************************************************************/
/* UpdateStatusWindow()                                               */
/* Return Value:                                                      */
/*     none                                                             */
/**********************************************************************/
BOOL UpdateStatusWindow(
    HWND   hUIWnd)
{
    HWND           hStatusWnd;

    if (!(hStatusWnd = GetStatusWnd(hUIWnd))) {
        return (FALSE);
    }

    InvalidateRect(hStatusWnd, &(sImeG.rcStatusText), TRUE);
    UpdateWindow(hStatusWnd);
    return (TRUE);
}


/**********************************************************************/
/* NotifyUI()                                                         */
/**********************************************************************/
void PASCAL NotifyUI(
    HWND        hUIWnd,
    WPARAM      wParam,
    LPARAM      lParam)
{
    HWND hStatusWnd;

    switch (wParam) {
    case IMN_OPENSTATUSWINDOW:
        //PostStatus(hUIWnd, TRUE);
        StatusWndMsg(hUIWnd, TRUE);
        break;
    case IMN_CLOSESTATUSWINDOW:
        //PostStatus(hUIWnd, FALSE);
        StatusWndMsg(hUIWnd, FALSE);
        break;
    case IMN_OPENCANDIDATE:
        if (lParam & 0x00000001) {
            OpenCand(hUIWnd);
        }
        break;
    case IMN_CHANGECANDIDATE:
        if (lParam & 0x00000001) {
            HDC  hDC;
            HWND hCandWnd;

            hCandWnd = GetCandWnd(hUIWnd);
            if (!hCandWnd) {
                return;
            }

            hDC = GetDC(hCandWnd);
            PaintCandWindow(hCandWnd, hDC);
            ReleaseDC(hCandWnd, hDC);
        }
        break;
    case IMN_CLOSECANDIDATE:
        if (lParam & 0x00000001) {
            CloseCand(hUIWnd);
        }
        break;
    case IMN_SETSENTENCEMODE:
        break;
    case IMN_SETOPENSTATUS:
    case IMN_SETCONVERSIONMODE:
        hStatusWnd = GetStatusWnd(hUIWnd);
        if (!hStatusWnd) {
            return;
        }

        {
            RECT rcRect;
            rcRect = sImeG.rcStatusText;
            // off by 1
            rcRect.right += 1;
            rcRect.bottom += 1;

            RedrawWindow(hStatusWnd, &rcRect, NULL, RDW_INVALIDATE);
        }
        break;
    case IMN_SETCOMPOSITIONFONT:
        // we are not going to change font, but an IME can do this if it want
        break;
    case IMN_SETCOMPOSITIONWINDOW:
        {
            HWND hCompWnd;
            hCompWnd = GetCompWnd(hUIWnd);
            if (!hCompWnd) {
                return;
            }
            PostMessage(hCompWnd, WM_IME_NOTIFY, wParam, lParam);
        }
        break;
    case IMN_SETCANDIDATEPOS:
        {
            HWND hCandWnd;
            hCandWnd = GetCandWnd(hUIWnd);
            if (!hCandWnd) {
                return;
            }
            PostMessage(hCandWnd, WM_IME_NOTIFY, wParam, lParam);
        }
        break;
    case IMN_SETSTATUSWINDOWPOS:
        hStatusWnd = GetStatusWnd(hUIWnd);
        if (hStatusWnd) {
            PostMessage(hStatusWnd, WM_IME_NOTIFY, wParam, lParam);
        } 
        break;
    case IMN_PRIVATE:
        switch (lParam) {
        case IMN_PRIVATE_UPDATE_STATUS:
            UpdateStatusWindow(hUIWnd);
            break;
        case IMN_PRIVATE_DESTROYCANDWIN:
            SendMessage(GetCandWnd(hUIWnd), WM_DESTROY, (WPARAM)0, (LPARAM)0);
            break;
        }
        break;
    default:
        break;
    }

    return;
}

/**********************************************************************/
/* SetContext()                                                       */
/**********************************************************************/
void PASCAL SetContext(         // the context activated/deactivated
    HWND   hUIWnd,
    BOOL   fOn,
    LPARAM lShowUI)
{
    HIMC              hIMC;
    LPINPUTCONTEXT   lpIMC;
    LPPRIVCONTEXT   lpImcP;
    HGLOBAL     hUIPrivate;
    register LPUIPRIV lpUIPrivate;