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 static
  13 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             wcsncpy(lf.lfFaceName,
  52                     lpFontName,
  53                     sizeof(lf.lfFaceName) / sizeof(lf.lfFaceName[0]));
  54
  55             hFont = CreateFontIndirectW(&lf);
  56
  57             HeapFree(GetProcessHeap(),
  58                      0,
  59                      lpFontName);
  60         }
  61     }
  62
  63     return hFont;
  64 }
  65
  66
  67 LRESULT CALLBACK
  68 LrgCellWndProc(HWND hwnd,
  69                UINT uMsg,
  70                WPARAM wParam,
  71                LPARAM lParam)
  72 {
  73     PMAP infoPtr;
  74     LRESULT Ret = 0;
  75     static INT cxClient, cyClient;
  76     static RECT rc;
  77     static HFONT hFont = NULL;
  78
  79     infoPtr = (PMAP)GetWindowLongPtrW(hwnd,
  80                                      GWLP_USERDATA);
  81
  82     if (infoPtr == NULL && uMsg != WM_CREATE)
  83     {
  84         goto HandleDefaultMessage;
  85     }
  86
  87     switch (uMsg)
  88     {
  89         case WM_CREATE:
  90         {
  91             infoPtr = (PMAP)(((LPCREATESTRUCTW)lParam)->lpCreateParams);
  92
  93             SetWindowLongPtrW(hwnd,
  94                               GWLP_USERDATA,
  95                               (LONG_PTR)infoPtr);
  96
  97             hFont = SetLrgFont(infoPtr);
  98
  99             break;
 100         }
 101
 102         case WM_SIZE:
 103         {
 104             cxClient = LOWORD(lParam);
 105             cyClient = HIWORD(lParam);
 106
 107             rc.left = 0;
 108             rc.top = 0;
 109             rc.right = cxClient;
 110             rc.bottom = cyClient;
 111
 112             break;
 113         }
 114
 115         case WM_PAINT:
 116         {
 117             PAINTSTRUCT ps;
 118             HDC hdc;
 119             HFONT hOldFont;
 120
 121             hdc = BeginPaint(hwnd,
 122                              &ps);
 123
 124             Rectangle(hdc,
 125                       0,
 126                       0,
 127                       cxClient,
 128                       cyClient);
 129
 130             hOldFont = SelectObject(hdc, hFont);
 131
 132             DrawTextW(hdc,
 133                       &infoPtr->pActiveCell->ch,
 134                       1,
 135                       &rc,
 136                       DT_CENTER | DT_VCENTER | DT_SINGLELINE);
 137
 138             SelectObject(hdc, hOldFont);
 139
 140             EndPaint(hwnd,
 141                      &ps);
 142
 143             break;
 144         }
 145
 146         case WM_DESTROY:
 147         {
 148             DeleteObject(hFont);
 149
 150             break;
 151         }
 152
 153         default:
 154         {
 155 HandleDefaultMessage:
 156             Ret = DefWindowProcW(hwnd,
 157                                  uMsg,
 158                                  wParam,
 159                                  lParam);
 160             break;
 161         }
 162     }
 163
 164     return Ret;
 165 }