reactos/base/applications/screensavers/matrix/settings.c

   1 //
   2 //      settings.c
   3 //
   4 //      Load/Save settings from registry
   5 //
   6 #include <windows.h>
   7 #include <tchar.h>
   8 #include "globals.h"
   9 #include "message.h"
  10 #include "matrix.h"
  11
  12 TCHAR   g_szMessages[MAX_MESSAGES][MAXMSG_LENGTH];
  13 int             g_nNumMessages           = 0;
  14 int             g_nMessageSpeed          = 5;
  15 TCHAR   g_szFontName[512]        = _T("Arial");
  16
  17 int             g_nMatrixSpeed           = 150;
  18 int             g_nDensity                       = 32;
  19 int             g_nFontSize                      = 12;
  20 BOOL    g_fRandomizeMessages = FALSE;
  21 BOOL    g_fFontBold                      = TRUE;
  22 BOOL    g_fScreenSaving          = FALSE;
  23
  24 HFONT   g_hFont;
  25
  26 void LoadSettings()
  27 {
  28         HKEY hkey;
  29         LONG value;
  30         ULONG len;
  31         TCHAR *hugechar = malloc(4096);
  32         TCHAR *hptr = hugechar;
  33
  34         if(hugechar == 0)
  35                 return;
  36
  37         hugechar[0] = _T('\0');
  38
  39         RegCreateKeyEx(HKEY_CURRENT_USER, _T("Software\\Catch22\\Matrix Screen Saver"), 0,
  40                 _T(""), 0, KEY_READ, NULL, &hkey, NULL);
  41
  42         len = sizeof value;
  43         if(ERROR_SUCCESS == RegQueryValueEx(hkey, _T("MessageSpeed"), 0, 0, (BYTE *)&value, &len))
  44         {
  45                 if(value >= MSGSPEED_MIN && value <= MSGSPEED_MAX)
  46                         g_nMessageSpeed = value;
  47         }
  48
  49         if(ERROR_SUCCESS == RegQueryValueEx(hkey, _T("MatrixSpeed"),  0, 0, (BYTE *)&value, &len))
  50         {
  51                 if(value >= SPEED_MIN && value <= SPEED_MAX)
  52                         g_nMatrixSpeed  = value;
  53         }
  54
  55         if(ERROR_SUCCESS == RegQueryValueEx(hkey, _T("Density"),      0, 0, (BYTE *)&value, &len))
  56         {
  57                 if(value >= DENSITY_MIN && value <= DENSITY_MAX)
  58                         g_nDensity      = value;
  59         }
  60
  61         if(ERROR_SUCCESS == RegQueryValueEx(hkey, _T("FontSize"),      0, 0, (BYTE *)&value, &len))
  62         {
  63                 if(value >= FONT_MIN && value <= FONT_MAX)
  64                         g_nFontSize      = value;
  65         }
  66
  67         if(ERROR_SUCCESS == RegQueryValueEx(hkey, _T("FontBold"),      0, 0, (BYTE *)&value, &len))
  68                 g_fFontBold = (value == 0 ? FALSE : TRUE);
  69
  70         if(ERROR_SUCCESS == RegQueryValueEx(hkey, _T("Randomize"),      0, 0, (BYTE *)&value, &len))
  71                 g_fRandomizeMessages = (value == 0 ? FALSE : TRUE);
  72
  73         len = 4096;
  74         if(ERROR_SUCCESS == RegQueryValueEx(hkey, _T("FontName"),  0, 0, (BYTE *)hugechar, &len))
  75         {
  76                 if(len > 0)
  77                         lstrcpy(g_szFontName, hugechar);
  78                 else
  79                         lstrcpy(g_szFontName, _T("Arial"));
  80
  81         }
  82
  83         len = 4096;
  84
  85         if(ERROR_SUCCESS == RegQueryValueEx(hkey, _T("Messages"),      0, 0 , (BYTE *)hugechar, &len))
  86         {
  87                 while(len > 0 && *hptr && isascii(*hptr))
  88                 {
  89                         if(lstrlen(hptr) > 0)
  90                         {
  91                                 lstrcpyn(g_szMessages[g_nNumMessages], hptr, MAXMSG_LENGTH);
  92                                 ++g_nNumMessages;
  93                                 hptr += lstrlen(hptr) + 1;
  94                         }
  95                 }
  96         }
  97         else
  98         {
  99                 /* built-in coded message for first run */
 100                 lstrcpyn(g_szMessages[0], _T("ReactOS"), MAXMSG_LENGTH);
 101                 ++g_nNumMessages;
 102         }
 103
 104         RegCloseKey(hkey);
 105         free(hugechar);
 106 }
 107
 108 void SaveSettings()
 109 {
 110         HKEY hkey;
 111         TCHAR *hugechar = malloc(4096);
 112         TCHAR *msgptr = hugechar;
 113         int totallen = 0;
 114         int i,len;
 115         LONG value;
 116
 117         if(hugechar == 0)
 118                 return;
 119
 120         hugechar[0] = _T('\0');
 121         msgptr = hugechar;
 122
 123         RegCreateKeyEx(HKEY_CURRENT_USER, _T("Software\\Catch22\\Matrix Screen Saver"), 0,
 124                 _T(""), 0, KEY_WRITE, NULL, &hkey, NULL);
 125
 126         value = g_nMessageSpeed;
 127         RegSetValueEx(hkey, _T("MessageSpeed"), 0, REG_DWORD, (BYTE *)&value, sizeof value);
 128
 129         value = g_nMatrixSpeed;
 130         RegSetValueEx(hkey, _T("MatrixSpeed"), 0, REG_DWORD, (BYTE *)&value, sizeof value);
 131
 132         value = g_nDensity;
 133         RegSetValueEx(hkey, _T("Density"), 0, REG_DWORD, (BYTE *)&value, sizeof value);
 134
 135         value = g_nFontSize;
 136         RegSetValueEx(hkey, _T("FontSize"), 0, REG_DWORD, (BYTE *)&value, sizeof value);
 137
 138         value = g_fRandomizeMessages;
 139         RegSetValueEx(hkey, _T("Randomize"), 0, REG_DWORD, (BYTE *)&value, sizeof value);
 140
 141         value = g_fFontBold;
 142         RegSetValueEx(hkey, _T("FontBold"), 0, REG_DWORD, (BYTE *)&value, sizeof value);
 143
 144         RegSetValueEx(hkey, _T("FontName"), 0, REG_SZ, (BYTE *)g_szFontName, lstrlen(g_szFontName));
 145
 146         for(i = 0; i < g_nNumMessages; i++)
 147         {
 148                 len = lstrlen(g_szMessages[i]);
 149
 150                 if(len > 0 && totallen+len < 4096)
 151                 {
 152                         lstrcpyn(msgptr, g_szMessages[i], 4096-totallen);
 153                         totallen += len + 1;
 154                         msgptr += len + 1;
 155                 }
 156         }
 157
 158         *msgptr = _T('\0');
 159         totallen++;
 160
 161         RegSetValueEx(hkey, _T("Messages"), 0, REG_MULTI_SZ, (BYTE *)hugechar, totallen);
 162         RegCloseKey(hkey);
 163
 164         free(hugechar);
 165 }