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  1. // dialog_changeappearance.cpp
  2.  
  3. #include "../common.h"
  4.  
  5.  
  6. // dialog template
  7. #define THIS_DIALOG DIALOG_CHANGEAPPEARANCE
  8.  
  9.  
  10. // global variables
  11. static wchar_t ofn_customfilter[256] = L"";
  12.  
  13.  
  14. // prototypes of local functions
  15. static void StartThread_ThisDialog (void *thread_parms);
  16. static int CALLBACK DialogProc_ThisDialog (HWND hWnd, unsigned int message, WPARAM wParam, LPARAM lParam);
  17. static void StartThread_DialogBoxLoad (void *thread_parms);
  18.  
  19.  
  20. void DialogBox_ChangeAppearance (void)
  21. {
  22.    // helper function to fire up the modeless dialog box
  23.  
  24.    is_dialogbox_displayed = true;
  25.    _beginthread (StartThread_ThisDialog, 0, NULL); // fire up a new one
  26.  
  27.    return; // return as soon as the thread is fired up
  28. }
  29.  
  30.  
  31. void DialogBox_ChangeAppearance_Validated (void)
  32. {
  33.    // callback function called by the main game thread when the dialog box is validated
  34.  
  35.    // remember this callback is no longer to be called
  36.    is_dialogbox_changeappearance_validated = false;
  37.  
  38.    return; // finished
  39. }
  40.  
  41.  
  42. static void StartThread_ThisDialog (void *thread_parms)
  43. {
  44.    // this function runs in a separate thread, for that's the only way (seemingly)
  45.    // to implement a non-modal message box using the Common Controls library.
  46.  
  47.    // display the dialog box
  48.    if (DialogBox (hAppInstance, MAKEINTRESOURCE (THIS_DIALOG), hMainWnd, DialogProc_ThisDialog) == 1)
  49.       is_dialogbox_changeappearance_validated = true;
  50.    is_dialogbox_displayed = false;
  51.  
  52.    the_board.reevaluate = true; // refresh the GUI buttons if needed
  53.    return; // _endthread() implied
  54. }
  55.  
  56.  
  57. static int CALLBACK DialogProc_ThisDialog (HWND hWnd, unsigned int message, WPARAM wParam, LPARAM lParam)
  58. {
  59.    // message handler for the dialog box
  60.  
  61.    unsigned short wParam_hiword;
  62.    unsigned short wParam_loword;
  63.    HWND hComboBoxWnd;
  64.    int selected_index;
  65.    int theme_index;
  66.  
  67.    // filter out the commonly used message values
  68.    wParam_hiword = HIWORD (wParam);
  69.    wParam_loword = LOWORD (wParam);
  70.  
  71.    // have we just fired up this window ?
  72.    if (message == WM_INITDIALOG)
  73.    {
  74.       // center the window
  75.       CenterWindow (hWnd, hMainWnd);
  76.  
  77.       // set dialog icons (small one for title bar & big one for task manager)
  78.       SendMessage (hWnd, WM_SETICON, ICON_SMALL, (LPARAM) LoadIcon (hAppInstance, MAKEINTRESOURCE (ICON_MAIN)));
  79.       SendMessage (hWnd, WM_SETICON, ICON_BIG, (LPARAM) LoadIcon (hAppInstance, MAKEINTRESOURCE (ICON_MAIN)));
  80.  
  81.       // set window title and control texts
  82.       SetWindowText (hWnd, LOCALIZE (L"ChangeAppearance_Title"));
  83.       Static_SetText (GetDlgItem (hWnd, GROUPBOX_TABLESKIN), LOCALIZE (L"ChangeAppearance_TableSkin"));
  84.       Static_SetText (GetDlgItem (hWnd, STATICTEXT_CHANGEAPPEARANCE_THEMEINFO), (theme->description != NULL ? theme->description : L""));
  85.       SetWindowText (GetDlgItem (hWnd, CHECKBOX_CHANGEAPPEARANCE_SHOWGRID), LOCALIZE (L"ChangeAppearance_ShowGrid"));
  86.       SetWindowText (GetDlgItem (hWnd, CHECKBOX_CHANGEAPPEARANCE_SHOWICONSRATHER), LOCALIZE (L"ChangeAppearance_ShowIconsRather"));
  87.       SetWindowText (GetDlgItem (hWnd, CHECKBOX_CHANGEAPPEARANCE_CUSTOMBACKGROUND), LOCALIZE (L"ChangeAppearance_CustomPicture"));
  88.       SetWindowText (GetDlgItem (hWnd, BUTTON_BROWSE), LOCALIZE (L"Button_Browse"));
  89.       Static_SetText (GetDlgItem (hWnd, STATICTEXT_CHANGEAPPEARANCE_STATUSBAR), LOCALIZE (L"ChangeAppearance_StatusBar"));
  90.  
  91.       // get a quick access to the themes combo box
  92.       hComboBoxWnd = GetDlgItem (hWnd, COMBOBOX_THEMES);
  93.  
  94.       // populate the themes combo box
  95.       ComboBox_ResetContent (hComboBoxWnd);
  96.       for (theme_index = 0; theme_index < theme_count; theme_index++)
  97.       {
  98.          selected_index = ComboBox_AddString (hComboBoxWnd, themes[theme_index].name);
  99.          ComboBox_SetItemData (hComboBoxWnd, selected_index, theme_index); // save the theme index along with its name in the combo box
  100.          if (_wcsicmp (themes[theme_index].name, theme->name) == 0)
  101.             ComboBox_SetCurSel (hComboBoxWnd, selected_index); // put the user selection back on the fly
  102.       }
  103.  
  104.       // initialize the checkboxes
  105.       Button_SetCheck (GetDlgItem (hWnd, CHECKBOX_CHANGEAPPEARANCE_SHOWGRID), (want_grid ? BST_CHECKED : BST_UNCHECKED));
  106.       Button_SetCheck (GetDlgItem (hWnd, CHECKBOX_CHANGEAPPEARANCE_SHOWICONSRATHER), (want_flaticons ? BST_CHECKED : BST_UNCHECKED));
  107.       Button_SetCheck (GetDlgItem (hWnd, CHECKBOX_CHANGEAPPEARANCE_CUSTOMBACKGROUND), (want_custombackground ? BST_CHECKED : BST_UNCHECKED));
  108.  
  109.       // enable or disable the browse button based on whether we want a custom background or not
  110.       EnableWindow (GetDlgItem (hWnd, BUTTON_BROWSE), want_custombackground);
  111.    }
  112.  
  113.    // else did we click the close button on the title bar ?
  114.    else if (message == WM_CLOSE)
  115.       EndDialog (hWnd, 0); // close the dialog box
  116.  
  117.    // else did we take action on one of the controls ?
  118.    else if (message == WM_COMMAND)
  119.    {
  120.       // did we cancel the dialog box ? (IDCANCEL is a system-wide dialog box handler value, that catches the ESC key)
  121.       if (wParam_loword == IDCANCEL)
  122.          EndDialog (hWnd, 0); // close the dialog box
  123.  
  124.       // else given the control that's clicked, update the relevant skin
  125.       else if ((wParam_loword == COMBOBOX_THEMES) && (wParam_hiword == CBN_SELCHANGE))
  126.       {
  127.          // get a quick access to the themes combo box
  128.          hComboBoxWnd = GetDlgItem (hWnd, COMBOBOX_THEMES);
  129.  
  130.          selected_index = ComboBox_GetCurSel (hComboBoxWnd); // as the combo box is sorted, the selected index is NOT the theme index
  131.          if ((selected_index >= 0) && (selected_index < theme_count))
  132.          {
  133.             theme_index = ComboBox_GetItemData (hComboBoxWnd, selected_index); // retrieve the actual theme index from the combo box's user data
  134.             while (!themes[theme_index].is_loaded)
  135.                Sleep (100); // wait until theme is fully loaded
  136.             theme = &themes[theme_index]; // update the selected theme (WARNING: race condition ?)
  137.  
  138.             // update the theme info text
  139.             Static_SetText (GetDlgItem (hWnd, STATICTEXT_CHANGEAPPEARANCE_THEMEINFO), (theme->description != NULL ? theme->description : L""));
  140.          }
  141.          the_scene.update = true; // redraw scene
  142.       }
  143.       else if (wParam_loword == CHECKBOX_CHANGEAPPEARANCE_SHOWGRID)
  144.       {
  145.          want_grid = (Button_GetCheck (GetDlgItem (hWnd, CHECKBOX_CHANGEAPPEARANCE_SHOWGRID)) != 0);
  146.          the_scene.update = true; // redraw scene
  147.       }
  148.       else if (wParam_loword == CHECKBOX_CHANGEAPPEARANCE_SHOWICONSRATHER)
  149.       {
  150.          want_flaticons = (Button_GetCheck (GetDlgItem (hWnd, CHECKBOX_CHANGEAPPEARANCE_SHOWICONSRATHER)) != 0);
  151.          the_scene.update = true; // redraw scene
  152.       }
  153.       else if (wParam_loword == CHECKBOX_CHANGEAPPEARANCE_CUSTOMBACKGROUND)
  154.       {
  155.          want_custombackground = (Button_GetCheck (GetDlgItem (hWnd, CHECKBOX_CHANGEAPPEARANCE_CUSTOMBACKGROUND)) != 0);
  156.          EnableWindow (GetDlgItem (hWnd, BUTTON_BROWSE), want_custombackground);
  157.          the_scene.update = true; // redraw scene
  158.       }
  159.  
  160.       // else did we click the browse button ?
  161.       else if (wParam_loword == BUTTON_BROWSE)
  162.          _beginthread (StartThread_DialogBoxLoad, 0, (void *) hWnd); // fire up the load dialog box thread
  163.    }
  164.  
  165.    // call the default dialog message processing function to keep things going
  166.    return (false);
  167. }
  168.  
  169.  
  170. static void StartThread_DialogBoxLoad (void *thread_parms)
  171. {
  172.    // this function runs in a separate thread, for that's the only way (seemingly)
  173.    // to implement a non-modal Open dialog box using the Common Controls library.
  174.  
  175.    OPENFILENAME ofn;
  176.  
  177.    // reset and prepare the open file name structure
  178.    memset (&ofn, 0, sizeof (ofn));
  179.    ofn.lStructSize = sizeof (ofn);
  180.    ofn.hwndOwner = (HWND) thread_parms;
  181.    ofn.lpstrFilter = LOCALIZE (L"ImageFileFilter");
  182.    ofn.lpstrDefExt = L"jpg"; // default extension
  183.    ofn.lpstrCustomFilter = ofn_customfilter;
  184.    ofn.nMaxCustFilter = WCHAR_SIZEOF (ofn_customfilter);
  185.    ofn.nFilterIndex = 1; // first filter (list is 1-based)
  186.    ofn.lpstrFile = custombackground_pathname;
  187.    ofn.nMaxFile = WCHAR_SIZEOF (custombackground_pathname);
  188.    ofn.Flags = OFN_ENABLESIZING | OFN_EXPLORER | OFN_HIDEREADONLY | OFN_PATHMUSTEXIST | OFN_FILEMUSTEXIST;
  189.  
  190.    // display the dialog box and get the file name
  191.    if (GetOpenFileName (&ofn))
  192.       Background_LoadImage (&custombg, custombackground_pathname);
  193.  
  194.    the_scene.update = true; // redraw scene
  195.    return; // _endthread() implied
  196. }
  197.