dialog.c

ReactOS是一些高手根据Windows XP的内核编写出的类XP。内核实现机理和API函数调用几乎相同。甚至可以兼容XP的程序。喜欢研究系统内核的人可以看一看。

    border = 150;
    for (copycount=1; copycount <= printer.nCopies; copycount++) {
        i = 0;
        pagecount = 1;
        do {
            static const WCHAR letterM[] = { 'M',0 };

            if (pagecount >= printer.nFromPage &&
    /*          ((printer.Flags & PD_PAGENUMS) == 0 ||  pagecount <= printer.nToPage))*/
            pagecount <= printer.nToPage)
                dopage = 1;
            else
                dopage = 0;

            old_font = SelectObject(printer.hDC, font);
            GetTextExtentPoint32(printer.hDC, letterM, 1, &szMetric);

            if (dopage) {
                if (StartPage(printer.hDC) <= 0) {
                    static const WCHAR failedW[] = { 'S','t','a','r','t','P','a','g','e',' ','f','a','i','l','e','d',0 };
                    static const WCHAR errorW[] = { 'P','r','i','n','t',' ','E','r','r','o','r',0 };
                    MessageBox(Globals.hMainWnd, failedW, errorW, MB_ICONEXCLAMATION);
                    return;
                }
                /* Write a rectangle and header at the top of each page */
                Rectangle(printer.hDC, border, border, cWidthPels-border, border+szMetric.cy*2);
                /* I don't know what's up with this TextOut command. This comes out
                kind of mangled.
                */
                TextOut(printer.hDC, border*2, border+szMetric.cy/2, Globals.szFileTitle, lstrlen(Globals.szFileTitle));
            }

            /* The starting point for the main text */
            xLeft = border*2;
            yTop = border+szMetric.cy*4;

            SelectObject(printer.hDC, old_font);
            GetTextExtentPoint32(printer.hDC, letterM, 1, &szMetric);

            /* Since outputting strings is giving me problems, output the main
            text one character at a time.
            */
            do {
                if (pTemp[i] == '\n') {
                    xLeft = border*2;
                    yTop += szMetric.cy;
                }
                else if (pTemp[i] != '\r') {
                    if (dopage)
                        TextOut(printer.hDC, xLeft, yTop, &pTemp[i], 1);
                    xLeft += szMetric.cx;
                }
            } while (i++<size && yTop<(cHeightPels-border*2));

            if (dopage)
                EndPage(printer.hDC);
            pagecount++;
        } while (i<size);
    }

    EndDoc(printer.hDC);
    DeleteDC(printer.hDC);
    HeapFree(GetProcessHeap(), 0, pTemp);
}

VOID DIALOG_FilePrinterSetup(VOID)
{
    PRINTDLG printer;

    ZeroMemory(&printer, sizeof(printer));
    printer.lStructSize         = sizeof(printer);
    printer.hwndOwner           = Globals.hMainWnd;
    printer.hInstance           = Globals.hInstance;
    printer.Flags               = PD_PRINTSETUP;
    printer.nCopies             = 1;

    PrintDlg(&printer);
}

VOID DIALOG_FileExit(VOID)
{
    PostMessage(Globals.hMainWnd, WM_CLOSE, 0, 0l);
}

VOID DIALOG_EditUndo(VOID)
{
    SendMessage(Globals.hEdit, EM_UNDO, 0, 0);
}

VOID DIALOG_EditCut(VOID)
{
    SendMessage(Globals.hEdit, WM_CUT, 0, 0);
}

VOID DIALOG_EditCopy(VOID)
{
    SendMessage(Globals.hEdit, WM_COPY, 0, 0);
}

VOID DIALOG_EditPaste(VOID)
{
    SendMessage(Globals.hEdit, WM_PASTE, 0, 0);
}

VOID DIALOG_EditDelete(VOID)
{
    SendMessage(Globals.hEdit, WM_CLEAR, 0, 0);
}

VOID DIALOG_EditSelectAll(VOID)
{
    SendMessage(Globals.hEdit, EM_SETSEL, 0, (LPARAM)-1);
}

VOID DIALOG_EditTimeDate(VOID)
{
    SYSTEMTIME   st;
    WCHAR        szDate[MAX_STRING_LEN];
    static const WCHAR spaceW[] = { ' ',0 };

    GetLocalTime(&st);

    GetTimeFormat(LOCALE_USER_DEFAULT, 0, &st, NULL, szDate, MAX_STRING_LEN);
    SendMessage(Globals.hEdit, EM_REPLACESEL, TRUE, (LPARAM)szDate);

    SendMessage(Globals.hEdit, EM_REPLACESEL, TRUE, (LPARAM)spaceW);

    GetDateFormat(LOCALE_USER_DEFAULT, DATE_LONGDATE, &st, NULL, szDate, MAX_STRING_LEN);
    SendMessage(Globals.hEdit, EM_REPLACESEL, TRUE, (LPARAM)szDate);
}

VOID DIALOG_EditWrap(VOID)
{
    static const WCHAR editW[] = { 'e','d','i','t',0 };
    DWORD dwStyle;
    RECT rc, rcstatus;
    DWORD size;
    LPWSTR pTemp;

    Globals.bWrapLongLines = !Globals.bWrapLongLines;

    size = GetWindowTextLength(Globals.hEdit) + 1;
    pTemp = HeapAlloc(GetProcessHeap(), 0, size * sizeof(WCHAR));
    if (!pTemp)
    {
        ShowLastError();
        return;
    }
    GetWindowText(Globals.hEdit, pTemp, size);
    DestroyWindow(Globals.hEdit);
    GetClientRect(Globals.hMainWnd, &rc);
    dwStyle = Globals.bWrapLongLines ? EDIT_STYLE_WRAP : EDIT_STYLE;
    EnableMenuItem(GetMenu(Globals.hMainWnd), CMD_STATUSBAR,
        MF_BYCOMMAND | (Globals.bWrapLongLines ? MF_DISABLED | MF_GRAYED : MF_ENABLED));
    if ( Globals.hStatusBar )
    {
       if ( Globals.bWrapLongLines )
          ShowWindow(Globals.hStatusBar, SW_HIDE);
       else if ( Globals.bShowStatusBar )
       {
          GetClientRect(Globals.hStatusBar, &rcstatus);
          rc.bottom -= (rcstatus.bottom - rcstatus.top);
          ShowWindow(Globals.hStatusBar, SW_SHOW);
       }
    }
    Globals.hEdit = CreateWindowEx(WS_EX_CLIENTEDGE, editW, NULL, dwStyle,
                         0, 0, rc.right, rc.bottom, Globals.hMainWnd,
                         NULL, Globals.hInstance, NULL);
    SendMessage(Globals.hEdit, WM_SETFONT, (WPARAM)Globals.hFont, (LPARAM)FALSE);
    SendMessage(Globals.hEdit, EM_LIMITTEXT, 0, 0);
    SetWindowTextW(Globals.hEdit, pTemp);
    SetFocus(Globals.hEdit);
    HeapFree(GetProcessHeap(), 0, pTemp);
    DrawMenuBar(Globals.hMainWnd);
}

VOID DIALOG_SelectFont(VOID)
{
    CHOOSEFONT cf;
    LOGFONT lf=Globals.lfFont;

    ZeroMemory( &cf, sizeof(cf) );
    cf.lStructSize=sizeof(cf);
    cf.hwndOwner=Globals.hMainWnd;
    cf.lpLogFont=&lf;
    cf.Flags=CF_SCREENFONTS | CF_INITTOLOGFONTSTRUCT;

    if( ChooseFont(&cf) )
    {
        HFONT currfont=Globals.hFont;

        Globals.hFont=CreateFontIndirect( &lf );
        Globals.lfFont=lf;
        SendMessage( Globals.hEdit, WM_SETFONT, (WPARAM)Globals.hFont, (LPARAM)TRUE );
        if( currfont!=NULL )
            DeleteObject( currfont );
    }
}

typedef HWND (WINAPI *FINDPROC)(LPFINDREPLACE lpfr);

static VOID DIALOG_SearchDialog(FINDPROC pfnProc)
{
    ZeroMemory(&Globals.find, sizeof(Globals.find));
    Globals.find.lStructSize      = sizeof(Globals.find);
    Globals.find.hwndOwner        = Globals.hMainWnd;
    Globals.find.hInstance        = Globals.hInstance;
    Globals.find.lpstrFindWhat    = Globals.szFindText;
    Globals.find.wFindWhatLen     = SIZEOF(Globals.szFindText);
    Globals.find.lpstrReplaceWith = Globals.szReplaceText;
    Globals.find.wReplaceWithLen  = SIZEOF(Globals.szReplaceText);
    Globals.find.Flags            = FR_DOWN;

    /* We only need to create the modal FindReplace dialog which will */
    /* notify us of incoming events using hMainWnd Window Messages    */

    Globals.hFindReplaceDlg = pfnProc(&Globals.find);
    assert(Globals.hFindReplaceDlg !=0);
}

VOID DIALOG_Search(VOID)
{
    DIALOG_SearchDialog(FindText);
}

VOID DIALOG_SearchNext(VOID)
{
    if (Globals.find.lpstrFindWhat != NULL)
      NOTEPAD_FindNext(&Globals.find, FALSE, TRUE);
}

VOID DIALOG_Replace(VOID)
{
    DIALOG_SearchDialog(ReplaceText);
}

static INT_PTR CALLBACK DIALOG_GoTo_DialogProc(HWND hwndDialog, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
    BOOL bResult = FALSE;
    HWND hTextBox;
    TCHAR szText[32];

    switch(uMsg) {
	case WM_INITDIALOG:
        hTextBox = GetDlgItem(hwndDialog, ID_LINENUMBER);
		_sntprintf(szText, sizeof(szText) / sizeof(szText[0]), _T("%d"), lParam);
        SetWindowText(hTextBox, szText);
		break;
    case WM_COMMAND:
        if (HIWORD(wParam) == BN_CLICKED)
        {
            if (LOWORD(wParam) == IDOK)
            {
                hTextBox = GetDlgItem(hwndDialog, ID_LINENUMBER);
                GetWindowText(hTextBox, szText, sizeof(szText) / sizeof(szText[0]));
                EndDialog(hwndDialog, _ttoi(szText));
                bResult = TRUE;
            }
			else if (LOWORD(wParam) == IDCANCEL)
			{
                EndDialog(hwndDialog, 0);
                bResult = TRUE;
			}
        }
        break;
    }

    return bResult;
}

VOID DIALOG_GoTo(VOID)
{
    INT_PTR nLine;
    LPTSTR pszText;
    int nLength, i;
    DWORD dwStart, dwEnd;

    nLength = GetWindowTextLength(Globals.hEdit);
    pszText = (LPTSTR) HeapAlloc(GetProcessHeap(), 0, (nLength + 1) * sizeof(*pszText));
    if (!pszText)
        return;

    /* Retrieve current text */
    GetWindowText(Globals.hEdit, pszText, nLength + 1);
    SendMessage(Globals.hEdit, EM_GETSEL, (WPARAM) &dwStart, (LPARAM) &dwEnd);

    nLine = 1;
    for (i = 0; pszText[i] && (i < (int) dwStart); i++)
    {
        if (pszText[i] == '\n')
            nLine++;
    }

    nLine = DialogBoxParam(Globals.hInstance, MAKEINTRESOURCE(DIALOG_GOTO),
        Globals.hMainWnd, DIALOG_GoTo_DialogProc, nLine);

    if (nLine >= 1)
	{
        for (i = 0; pszText[i] && (nLine > 1) && (i < nLength - 1); i++)
        {
            if (pszText[i] == '\n')
                nLine--;
        }
        SendMessage(Globals.hEdit, EM_SETSEL, i, i);
        SendMessage(Globals.hEdit, EM_SCROLLCARET, 0, 0);
	}
	HeapFree(GetProcessHeap(), 0, pszText);
}

VOID DIALOG_StatusBarUpdateCaretPos(VOID)
{
    int line;
    int col;
    int ccol;
    POINT point;
    TCHAR buff[MAX_PATH];

    GetCaretPos(&point);
    line = (int) SendMessage(Globals.hEdit, EM_LINEFROMCHAR, (WPARAM)-1, (LPARAM)0);
    ccol = (int) SendMessage(Globals.hEdit, EM_CHARFROMPOS, (WPARAM)0, (LPARAM)MAKELPARAM(point.x, point.y));
    ccol = LOWORD(ccol);
    col = ccol - (int) SendMessage(Globals.hEdit, EM_LINEINDEX, (WPARAM)line, (LPARAM)0);

    _stprintf(buff, TEXT("%S %d, %S %d"), Globals.szStatusBarLine, line+1, Globals.szStatusBarCol, col+1);
    SendMessage(Globals.hStatusBar, SB_SETTEXT, (WPARAM) SB_SIMPLEID, (LPARAM)buff);
}

VOID DIALOG_ViewStatusBar(VOID)
{
   RECT rc;
   RECT rcstatus;

   Globals.bShowStatusBar = !Globals.bShowStatusBar;
   if ( !Globals.hStatusBar )
   {
       Globals.hStatusBar = CreateStatusWindow(WS_CHILD | WS_VISIBLE | WS_EX_STATICEDGE, TEXT("test"), Globals.hMainWnd, CMD_STATUSBAR_WND_ID );
       LoadString(Globals.hInstance, STRING_LINE, Globals.szStatusBarLine, MAX_PATH-1);
       LoadString(Globals.hInstance, STRING_COLUMN, Globals.szStatusBarCol, MAX_PATH-1);
       SendMessage(Globals.hStatusBar, SB_SIMPLE, (WPARAM)TRUE, (LPARAM)0);
   }
    CheckMenuItem(GetMenu(Globals.hMainWnd), CMD_STATUSBAR,
        MF_BYCOMMAND | (Globals.bShowStatusBar ? MF_CHECKED : MF_UNCHECKED));
    DrawMenuBar(Globals.hMainWnd);
    GetClientRect(Globals.hMainWnd, &rc);
    GetClientRect(Globals.hStatusBar, &rcstatus);
    if ( Globals.bShowStatusBar )
        rc.bottom -= (rcstatus.bottom - rcstatus.top);

    MoveWindow(Globals.hEdit, rc.left, rc.top, rc.right - rc.left, rc.bottom - rc.top, TRUE);
    ShowWindow(Globals.hStatusBar, Globals.bShowStatusBar);
    DIALOG_StatusBarUpdateCaretPos();
}

VOID DIALOG_HelpContents(VOID)
{
    WinHelp(Globals.hMainWnd, helpfileW, HELP_INDEX, 0);
}

VOID DIALOG_HelpSearch(VOID)
{
        /* Search Help */
}

VOID DIALOG_HelpHelp(VOID)
{
    WinHelp(Globals.hMainWnd, helpfileW, HELP_HELPONHELP, 0);
}

#ifdef _MSC_VER
#pragma warning(disable : 4100)
#endif
BOOL CALLBACK
AboutDialogProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
{
    HWND    hLicenseEditWnd;
    TCHAR    strLicense[0x1000];

    switch (message)
    {
    case WM_INITDIALOG:

        hLicenseEditWnd = GetDlgItem(hDlg, IDC_LICENSE);

        LoadString(GetModuleHandle(NULL), STRING_LICENSE, strLicense, 0x1000);

        SetWindowText(hLicenseEditWnd, strLicense);

        return TRUE;

    case WM_COMMAND:

        if ((LOWORD(wParam) == IDOK) || (LOWORD(wParam) == IDCANCEL))
        {
            EndDialog(hDlg, LOWORD(wParam));
            return TRUE;
        }

        break;
    }

    return 0;
}



VOID DIALOG_HelpAboutWine(VOID)
{
    static const WCHAR notepadW[] = { 'N','o','t','e','p','a','d','\n',0 };
    WCHAR szNotepad[MAX_STRING_LEN];

    LoadString(Globals.hInstance, STRING_NOTEPAD, szNotepad, SIZEOF(szNotepad));
    ShellAbout(Globals.hMainWnd, szNotepad, notepadW, 0);
}


/***********************************************************************
 *
 *           DIALOG_FilePageSetup
 */
VOID DIALOG_FilePageSetup(void)
{
  DialogBox(Globals.hInstance, MAKEINTRESOURCE(DIALOG_PAGESETUP),
            Globals.hMainWnd, DIALOG_PAGESETUP_DlgProc);
}


/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 *
 *           DIALOG_PAGESETUP_DlgProc
 */

static INT_PTR WINAPI DIALOG_PAGESETUP_DlgProc(HWND hDlg, UINT msg, WPARAM wParam, LPARAM lParam)
{

    switch (msg)
    {
    case WM_COMMAND:
        if (HIWORD(wParam) == BN_CLICKED)
        {
            switch (LOWORD(wParam))
            {
            case IDOK:
                /* save user input and close dialog */
                GetDlgItemText(hDlg, 0x141, Globals.szHeader, SIZEOF(Globals.szHeader));
                GetDlgItemText(hDlg, 0x143, Globals.szFooter, SIZEOF(Globals.szFooter));
                GetDlgItemText(hDlg, 0x14A, Globals.szMarginTop, SIZEOF(Globals.szMarginTop));
                GetDlgItemText(hDlg, 0x150, Globals.szMarginBottom, SIZEOF(Globals.szMarginBottom));
                GetDlgItemText(hDlg, 0x147, Globals.szMarginLeft, SIZEOF(Globals.szMarginLeft));
                GetDlgItemText(hDlg, 0x14D, Globals.szMarginRight, SIZEOF(Globals.szMarginRight));
                EndDialog(hDlg, IDOK);
                return TRUE;

            case IDCANCEL:
                /* discard user input and close dialog */
                EndDialog(hDlg, IDCANCEL);
                return TRUE;

            case IDHELP:
                {
                    /* FIXME: Bring this to work */
                    static const WCHAR sorryW[] = { 'S','o','r','r','y',',',' ','n','o',' ','h','e','l','p',' ','a','v','a','i','l','a','b','l','e',0 };
                    static const WCHAR helpW[] = { 'H','e','l','p',0 };
                    MessageBox(Globals.hMainWnd, sorryW, helpW, MB_ICONEXCLAMATION);
                    return TRUE;
                }

            default:
                break;
            }
        }
        break;

    case WM_INITDIALOG:
        /* fetch last user input prior to display dialog */
        SetDlgItemText(hDlg, 0x141, Globals.szHeader);
        SetDlgItemText(hDlg, 0x143, Globals.szFooter);
        SetDlgItemText(hDlg, 0x14A, Globals.szMarginTop);
        SetDlgItemText(hDlg, 0x150, Globals.szMarginBottom);
        SetDlgItemText(hDlg, 0x147, Globals.szMarginLeft);
        SetDlgItemText(hDlg, 0x14D, Globals.szMarginRight);
        break;
    }

    return FALSE;
}