base/applications/charmap/lrgcell.c

   1 /*
   2  * PROJECT:     ReactOS Character Map
   3  * LICENSE:     GPL - See COPYING in the top level directory
   4  * FILE:        base/applications/charmap/lrgcell.c
   5  * PURPOSE:     large cell window implementation
   6  * COPYRIGHT:   Copyright 2007 Ged Murphy <gedmurphy@reactos.org>
   7  *
   8  */
   9
  10 #include <precomp.h>
  11
  12
  13 static HFONT
  14 SetLrgFont(PMAP infoPtr)
  15 {
  16     LOGFONTW lf;
  17     HFONT hFont = NULL;
  18     HDC hdc;
  19     HWND hCombo;
  20     LPWSTR lpFontName;
  21     INT Len;
  22
  23     hCombo = GetDlgItem(infoPtr->hParent,
  24                         IDC_FONTCOMBO);
  25
  26     Len = GetWindowTextLengthW(hCombo);
  27
  28     if (Len != 0)
  29     {
  30         lpFontName = HeapAlloc(GetProcessHeap(),
  31                                0,
  32                                (Len + 1) * sizeof(WCHAR));
  33
  34         if (lpFontName)
  35         {
  36             SendMessageW(hCombo,
  37                          WM_GETTEXT,
  38                          31,
  39                          (LPARAM)lpFontName);
  40
  41             ZeroMemory(&lf,
  42                        sizeof(lf));
  43
  44             hdc = GetDC(infoPtr->hLrgWnd);
  45             lf.lfHeight = GetDeviceCaps(hdc,
  46                                         LOGPIXELSY) / 2;
  47             ReleaseDC(infoPtr->hLrgWnd,
  48                       hdc);
  49
  50             lf.lfCharSet =  DEFAULT_CHARSET;
  51             wcscpy(lf.lfFaceName,
  52                    lpFontName);
  53
  54             hFont = CreateFontIndirectW(&lf);
  55
  56             HeapFree(GetProcessHeap(),
  57                      0,
  58                      lpFontName);
  59         }
  60     }
  61
  62     return hFont;
  63 }
  64
  65
  66 LRESULT CALLBACK
  67 LrgCellWndProc(HWND hwnd,
  68                UINT uMsg,
  69                WPARAM wParam,
  70                LPARAM lParam)
  71 {
  72     PMAP infoPtr;
  73     LRESULT Ret = 0;
  74     static INT cxClient, cyClient;
  75     static RECT rc;
  76     static HFONT hFont = NULL;
  77
  78     infoPtr = (PMAP)GetWindowLongPtrW(hwnd,
  79                                      GWLP_USERDATA);
  80
  81     if (infoPtr == NULL && uMsg != WM_CREATE)
  82     {
  83         goto HandleDefaultMessage;
  84     }
  85
  86     switch (uMsg)
  87     {
  88         case WM_CREATE:
  89         {
  90             infoPtr = (PMAP)(((LPCREATESTRUCTW)lParam)->lpCreateParams);
  91
  92             SetWindowLongPtrW(hwnd,
  93                               GWLP_USERDATA,
  94                               (LONG_PTR)infoPtr);
  95
  96             hFont = SetLrgFont(infoPtr);
  97
  98             break;
  99         }
 100
 101         case WM_SIZE:
 102         {
 103             cxClient = LOWORD(lParam);
 104             cyClient = HIWORD(lParam);
 105
 106             rc.left = 0;
 107             rc.top = 0;
 108             rc.right = cxClient;
 109             rc.bottom = cyClient;
 110
 111             break;
 112         }
 113
 114         case WM_PAINT:
 115         {
 116             PAINTSTRUCT ps;
 117             HDC hdc;
 118             HFONT hOldFont;
 119
 120             hdc = BeginPaint(hwnd,
 121                              &ps);
 122
 123             Rectangle(hdc,
 124                       0,
 125                       0,
 126                       cxClient,
 127                       cyClient);
 128
 129             hOldFont = SelectObject(hdc, hFont);
 130
 131             DrawTextW(hdc,
 132                       &infoPtr->pActiveCell->ch,
 133                       1,
 134                       &rc,
 135                       DT_CENTER | DT_VCENTER | DT_SINGLELINE);
 136
 137             SelectObject(hdc, hOldFont);
 138
 139             EndPaint(hwnd,
 140                      &ps);
 141
 142             break;
 143         }
 144
 145         case WM_DESTROY:
 146         {
 147             DeleteObject(hFont);
 148
 149             break;
 150         }
 151
 152         default:
 153         {
 154 HandleDefaultMessage:
 155             Ret = DefWindowProcW(hwnd,
 156                                  uMsg,
 157                                  wParam,
 158                                  lParam);
 159             break;
 160         }
 161     }
 162
 163     return Ret;
 164 }