rosapps/applications/screensavers/matrix/settings.c

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