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  1. // dialog_about.cpp
  2.  
  3. #include "../common.h"
  4.  
  5.  
  6. // dialog template
  7. #define THIS_DIALOG DIALOG_ABOUT
  8.  
  9.  
  10. // global variables used in this module only
  11. static bool is_authordisplayed = false;
  12. static HFONT hFontBanner;
  13.  
  14.  
  15. // prototypes of local functions
  16. static void StartThread_ThisDialog (void *thread_parms);
  17. static int CALLBACK DialogProc_ThisDialog (HWND hWnd, unsigned int message, WPARAM wParam, LPARAM lParam);
  18.  
  19.  
  20. void DialogBox_About (void)
  21. {
  22.    // helper function to fire up the modeless dialog box
  23.  
  24.    _beginthread (StartThread_ThisDialog, 0, NULL); // fire up a new one
  25.  
  26.    return; // return as soon as the thread is fired up
  27. }
  28.  
  29.  
  30. void DialogBox_About_Validated (void)
  31. {
  32.    // callback function called by the main game thread when the dialog box is validated
  33.  
  34.    // remember this callback is no longer to be called
  35.    is_dialogbox_about_validated = false;
  36.  
  37.    return; // finished
  38. }
  39.  
  40.  
  41. static void StartThread_ThisDialog (void *thread_parms)
  42. {
  43.    // this function runs in a separate thread, for that's the only way (seemingly)
  44.    // to implement a non-modal message box using the Common Controls library.
  45.  
  46.    // create the banner font
  47.    hFontBanner = CreateFont (42, 0, 0, 0, FW_DONTCARE, true, false, false, ANSI_CHARSET, OUT_DEFAULT_PRECIS,
  48.                              CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY, DEFAULT_PITCH | FF_SWISS, L"Papyrus");
  49.  
  50.    // display the dialog box
  51.    if (DialogBox (hAppInstance, MAKEINTRESOURCE (THIS_DIALOG), hMainWnd, DialogProc_ThisDialog) == 1)
  52.       is_dialogbox_about_validated = true;
  53.  
  54.    // destroy the font object we used
  55.    DeleteObject (hFontBanner);
  56.  
  57.    return; // _endthread() implied
  58. }
  59.  
  60.  
  61. static int CALLBACK DialogProc_ThisDialog (HWND hWnd, unsigned int message, WPARAM wParam, LPARAM lParam)
  62. {
  63.    // message handler for the dialog box
  64.  
  65.    static wchar_t temp_buffer[256];
  66.  
  67.    unsigned short wParam_hiword;
  68.    unsigned short wParam_loword;
  69.  
  70.    // filter out the commonly used message values
  71.    wParam_hiword = HIWORD (wParam);
  72.    wParam_loword = LOWORD (wParam);
  73.  
  74.    // have we just fired up this window ?
  75.    if (message == WM_INITDIALOG)
  76.    {
  77.       // center the window
  78.       CenterWindow (hWnd, hMainWnd);
  79.  
  80.       // set dialog icons (small one for title bar & big one for task manager)
  81.       SendMessage (hWnd, WM_SETICON, ICON_SMALL, (LPARAM) LoadIcon (hAppInstance, MAKEINTRESOURCE (ICON_MAIN)));
  82.       SendMessage (hWnd, WM_SETICON, ICON_BIG, (LPARAM) LoadIcon (hAppInstance, MAKEINTRESOURCE (ICON_MAIN)));
  83.  
  84.       // set window title and control texts
  85.       SetWindowText (hWnd, LOCALIZE (L"AboutBox_Title"));
  86.  
  87.       // set the banner area font
  88.       SendMessage (GetDlgItem (hWnd, STATICTEXT_BANNER), WM_SETFONT, (WPARAM) hFontBanner, false);
  89.       Static_SetText (GetDlgItem (hWnd, STATICTEXT_BANNER), PROGRAM_NAME);
  90.  
  91.       swprintf_s (temp_buffer, WCHAR_SIZEOF (temp_buffer), L"version %c%c%c%c%s%c%c " PROGRAM_COPYRIGHT L" " AUTHOR_NAME L" - ",
  92.                   __DATE__[7], __DATE__[8], __DATE__[9], __DATE__[10],
  93.                   (strncmp (__DATE__, "Jan", 3) == 0 ? L"01" :
  94.                    (strncmp (__DATE__, "Feb", 3) == 0 ? L"02" :
  95.                     (strncmp (__DATE__, "Mar", 3) == 0 ? L"03" :
  96.                      (strncmp (__DATE__, "Apr", 3) == 0 ? L"04" :
  97.                       (strncmp (__DATE__, "May", 3) == 0 ? L"05" :
  98.                        (strncmp (__DATE__, "Jun", 3) == 0 ? L"06" :
  99.                         (strncmp (__DATE__, "Jul", 3) == 0 ? L"07" :
  100.                          (strncmp (__DATE__, "Aug", 3) == 0 ? L"08" :
  101.                           (strncmp (__DATE__, "Sep", 3) == 0 ? L"09" :
  102.                            (strncmp (__DATE__, "Oct", 3) == 0 ? L"10" :
  103.                             (strncmp (__DATE__, "Nov", 3) == 0 ? L"11" :
  104.                              (strncmp (__DATE__, "Dec", 3) == 0 ? L"12" : L"??")))))))))))),
  105.                   __DATE__[4], __DATE__[5]);
  106.       Static_SetText (GetDlgItem (hWnd, STATICTEXT_PROGRAMVERSION), temp_buffer);
  107.       Static_SetText (GetDlgItem (hWnd, STATICTEXT_AUTHOREMAIL), AUTHOR_EMAIL);
  108.       Static_SetText (GetDlgItem (hWnd, STATICTEXT_ABOUTBOX_1STPARAGRAPH), LOCALIZE (L"AboutBox_1stParagraph"));
  109.       Static_SetText (GetDlgItem (hWnd, STATICTEXT_ABOUTBOX_2NDPARAGRAPH), LOCALIZE (L"AboutBox_2ndParagraph"));
  110.       SetWindowText (GetDlgItem (hWnd, BUTTON_WEBSITE), LOCALIZE (L"AboutBox_VisitWebsite"));
  111.  
  112.       // build the "registered to:" message and display it
  113.       if (is_registered)
  114.          swprintf_s (temp_buffer, WCHAR_SIZEOF (temp_buffer), LOCALIZE (L"Registration_RegisteredTo"), options.registration.user_email);
  115.       else
  116.          wcscpy_s (temp_buffer, WCHAR_SIZEOF (temp_buffer), LOCALIZE (L"Registration_Unregistered"));
  117.       Static_SetText (GetDlgItem (hWnd, STATICTEXT_REGISTEREDTO), temp_buffer);
  118.  
  119.       // convert the bitmaps to clickable things
  120.       ConvertStaticToHyperlink (GetDlgItem (hWnd, BITMAP_ABOUT));
  121.       ConvertStaticToHyperlink (GetDlgItem (hWnd, STATICTEXT_AUTHOREMAIL));
  122.    }
  123.  
  124.    // else did we click the close button on the title bar ?
  125.    else if (message == WM_CLOSE)
  126.       EndDialog (hWnd, 0); // close the dialog box
  127.  
  128.    // else did we take action on one of the controls ?
  129.    else if (message == WM_COMMAND)
  130.    {
  131.       // was it the website button ?
  132.       if (wParam_loword == BUTTON_WEBSITE)
  133.       {
  134.          ShellExecute (NULL, L"open", PROGRAM_URL, NULL, NULL, SW_MAXIMIZE); // open the website in the default browser, maximized
  135.          EndDialog (hWnd, 0); // close the dialog box
  136.       }
  137.  
  138.       // else was it the author's email ?
  139.       else if (wParam_loword == STATICTEXT_AUTHOREMAIL)
  140.          ShellExecute (NULL, L"open", L"mailto:" AUTHOR_EMAIL, NULL, NULL, SW_MAXIMIZE); // fire up the mail client
  141.  
  142.       // else was it the picture ? change the picture and display our face instead :p
  143.       else if (wParam_loword == BITMAP_ABOUT)
  144.       {
  145.          is_authordisplayed ^= true; // alternate author display with about display picture
  146.          SendMessage (GetDlgItem (hWnd, BITMAP_ABOUT), STM_SETIMAGE, IMAGE_BITMAP, (LPARAM) LoadBitmap (hAppInstance, MAKEINTRESOURCE (is_authordisplayed ? BITMAP_AUTHOR : BITMAP_ABOUT)));
  147.       }
  148.  
  149.       // else did we cancel the dialog box ? (IDCANCEL is a system-wide dialog box handler value, that catches the ESC key)
  150.       else if (wParam_loword == IDCANCEL)
  151.          EndDialog (hWnd, 0); // close the dialog box
  152.    }
  153.  
  154.    // call the default dialog message processing function to keep things going
  155.    return (false);
  156. }
  157.