reactos/base/applications/notepad/settings.c

   1 /*
   2  *  Notepad (settings.c)
   3  *
   4  *  Copyright 1998,99 Marcel Baur <mbaur@g26.ethz.ch>
   5  *  Copyright 2002 Sylvain Petreolle <spetreolle@yahoo.fr>
   6  *  Copyright 2002 Andriy Palamarchuk
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  21  */
  22
  23 #include "notepad.h"
  24
  25 static LPCTSTR s_szRegistryKey = _T("Software\\Microsoft\\Notepad");
  26
  27
  28 static LONG HeightFromPointSize(DWORD dwPointSize)
  29 {
  30         LONG lHeight;
  31         HDC hDC;
  32
  33         hDC = GetDC(NULL);
  34         lHeight = -MulDiv(dwPointSize, GetDeviceCaps(hDC, LOGPIXELSY), 720);
  35         ReleaseDC(NULL, hDC);
  36
  37         return lHeight;
  38 }
  39
  40 static DWORD PointSizeFromHeight(LONG lHeight)
  41 {
  42         DWORD dwPointSize;
  43         HDC hDC;
  44
  45         hDC = GetDC(NULL);
  46         dwPointSize = -MulDiv(lHeight, 720, GetDeviceCaps(hDC, LOGPIXELSY));
  47         ReleaseDC(NULL, hDC);
  48
  49         /* round to nearest multiple of 10 */
  50         dwPointSize += 5;
  51         dwPointSize -= dwPointSize % 10;
  52
  53         return dwPointSize;
  54 }
  55
  56 static BOOL QueryGeneric(HKEY hKey, LPCTSTR pszValueNameT, DWORD dwExpectedType,
  57         LPVOID pvResult, DWORD dwResultSize)
  58 {
  59         DWORD dwType, cbData;
  60         LPVOID *pTemp = _alloca(dwResultSize);
  61
  62         ZeroMemory(pTemp, dwResultSize);
  63
  64         cbData = dwResultSize;
  65         if (RegQueryValueEx(hKey, pszValueNameT, NULL, &dwType, (LPBYTE) pTemp, &cbData) != ERROR_SUCCESS)
  66                 return FALSE;
  67
  68         if (dwType != dwExpectedType)
  69                 return FALSE;
  70
  71         memcpy(pvResult, pTemp, cbData);
  72         return TRUE;
  73 }
  74
  75 static BOOL QueryDword(HKEY hKey, LPCTSTR pszValueName, DWORD *pdwResult)
  76 {
  77         return QueryGeneric(hKey, pszValueName, REG_DWORD, pdwResult, sizeof(*pdwResult));
  78 }
  79
  80 static BOOL QueryByte(HKEY hKey, LPCTSTR pszValueName, BYTE *pbResult)
  81 {
  82         DWORD dwResult;
  83         if (!QueryGeneric(hKey, pszValueName, REG_DWORD, &dwResult, sizeof(dwResult)))
  84                 return FALSE;
  85         if (dwResult >= 0x100)
  86                 return FALSE;
  87         *pbResult = (BYTE) dwResult;
  88         return TRUE;
  89 }
  90
  91 static BOOL QueryBool(HKEY hKey, LPCTSTR pszValueName, BOOL *pbResult)
  92 {
  93         DWORD dwResult;
  94         if (!QueryDword(hKey, pszValueName, &dwResult))
  95                 return FALSE;
  96         *pbResult = dwResult ? TRUE : FALSE;
  97         return TRUE;
  98 }
  99
 100 static BOOL QueryString(HKEY hKey, LPCTSTR pszValueName, LPTSTR pszResult, DWORD dwResultSize)
 101 {
 102         return QueryGeneric(hKey, pszValueName, REG_SZ, pszResult, dwResultSize * sizeof(TCHAR));
 103 }
 104
 105 void LoadSettings(void)
 106 {
 107         HKEY hKey = NULL;
 108         HFONT hFont;
 109         DWORD dwPointSize = 0;
 110         INT base_length, dx, dy;
 111
 112         base_length = (GetSystemMetrics(SM_CXSCREEN) > GetSystemMetrics(SM_CYSCREEN))?
 113                 GetSystemMetrics(SM_CYSCREEN) : GetSystemMetrics(SM_CXSCREEN);
 114
 115         dx = (INT)(base_length * .95);
 116         dy = dx * 3 / 4;
 117         SetRect( &Globals.main_rect, 0, 0, dx, dy );
 118
 119         if (RegOpenKey(HKEY_CURRENT_USER, s_szRegistryKey, &hKey) == ERROR_SUCCESS)
 120         {
 121                 QueryByte(hKey,     _T("lfCharSet"),        &Globals.lfFont.lfCharSet);
 122                 QueryByte(hKey,     _T("lfClipPrecision"),  &Globals.lfFont.lfClipPrecision);
 123                 QueryDword(hKey,    _T("lfEscapement"),     (DWORD*)&Globals.lfFont.lfEscapement);
 124                 QueryString(hKey,   _T("lfFaceName"),       Globals.lfFont.lfFaceName, sizeof(Globals.lfFont.lfFaceName) / sizeof(Globals.lfFont.lfFaceName[0]));
 125                 QueryByte(hKey,     _T("lfItalic"),         &Globals.lfFont.lfItalic);
 126                 QueryDword(hKey,    _T("lfOrientation"),    (DWORD*)&Globals.lfFont.lfOrientation);
 127                 QueryByte(hKey,     _T("lfOutPrecision"),   &Globals.lfFont.lfOutPrecision);
 128                 QueryByte(hKey,     _T("lfPitchAndFamily"), &Globals.lfFont.lfPitchAndFamily);
 129                 QueryByte(hKey,     _T("lfQuality"),        &Globals.lfFont.lfQuality);
 130                 QueryByte(hKey,     _T("lfStrikeOut"),      &Globals.lfFont.lfStrikeOut);
 131                 QueryByte(hKey,     _T("lfUnderline"),      &Globals.lfFont.lfUnderline);
 132                 QueryDword(hKey,    _T("lfWeight"),         (DWORD*)&Globals.lfFont.lfWeight);
 133                 QueryDword(hKey,    _T("iPointSize"),       &dwPointSize);
 134                 QueryBool(hKey,     _T("fWrap"),            &Globals.bWrapLongLines);
 135                 QueryBool(hKey,     _T("fStatusBar"),       &Globals.bShowStatusBar);
 136
 137                 QueryDword(hKey,    _T("iWindowPosX"),      (DWORD*)&Globals.main_rect.left);
 138                 QueryDword(hKey,    _T("iWindowPosY"),      (DWORD*)&Globals.main_rect.top);
 139                 QueryDword(hKey,    _T("iWindowPosDX"),     (DWORD*)&dx);
 140                 QueryDword(hKey,    _T("iWindowPosDY"),     (DWORD*)&dy);
 141
 142         Globals.main_rect.right = Globals.main_rect.left + dx;
 143         Globals.main_rect.bottom = Globals.main_rect.top + dy;
 144
 145                 Globals.bShowStatusBar = !Globals.bShowStatusBar; /* invert value becuase DIALOG_ViewStatusBar will be called to show it*/
 146
 147                 if (dwPointSize != 0)
 148                         Globals.lfFont.lfHeight = HeightFromPointSize(dwPointSize);
 149
 150                 RegCloseKey(hKey);
 151         }
 152
 153         hFont = CreateFontIndirect(&Globals.lfFont);
 154         if (hFont)
 155         {
 156                 if (Globals.hFont)
 157                         DeleteObject(Globals.hFont);
 158                 Globals.hFont = hFont;
 159         }
 160 }
 161
 162 static BOOL SaveDword(HKEY hKey, LPCTSTR pszValueNameT, DWORD dwValue)
 163 {
 164         return RegSetValueEx(hKey, pszValueNameT, 0, REG_DWORD, (LPBYTE) &dwValue, sizeof(dwValue)) == ERROR_SUCCESS;
 165 }
 166
 167 static BOOL SaveString(HKEY hKey, LPCTSTR pszValueNameT, LPCTSTR pszValue)
 168 {
 169         return RegSetValueEx(hKey, pszValueNameT, 0, REG_SZ, (LPBYTE) pszValue, (DWORD) _tcslen(pszValue) * sizeof(*pszValue)) == ERROR_SUCCESS;
 170 }
 171
 172 void SaveSettings(void)
 173 {
 174         HKEY hKey;
 175         DWORD dwDisposition;
 176
 177     GetWindowRect(Globals.hMainWnd, &Globals.main_rect);
 178
 179         if (RegCreateKeyEx(HKEY_CURRENT_USER, s_szRegistryKey, 0, NULL, 0, KEY_ALL_ACCESS, NULL, &hKey, &dwDisposition)
 180                 == ERROR_SUCCESS)
 181         {
 182                 SaveDword(hKey,     _T("lfCharSet"),        Globals.lfFont.lfCharSet);
 183                 SaveDword(hKey,     _T("lfClipPrecision"),  Globals.lfFont.lfClipPrecision);
 184                 SaveDword(hKey,     _T("lfEscapement"),     Globals.lfFont.lfEscapement);
 185                 SaveString(hKey,    _T("lfFaceName"),       Globals.lfFont.lfFaceName);
 186                 SaveDword(hKey,     _T("lfItalic"),         Globals.lfFont.lfItalic);
 187                 SaveDword(hKey,     _T("lfOrientation"),    Globals.lfFont.lfOrientation);
 188                 SaveDword(hKey,     _T("lfOutPrecision"),   Globals.lfFont.lfOutPrecision);
 189                 SaveDword(hKey,     _T("lfPitchAndFamily"), Globals.lfFont.lfPitchAndFamily);
 190                 SaveDword(hKey,     _T("lfQuality"),        Globals.lfFont.lfQuality);
 191                 SaveDword(hKey,     _T("lfStrikeOut"),      Globals.lfFont.lfStrikeOut);
 192                 SaveDword(hKey,     _T("lfUnderline"),      Globals.lfFont.lfUnderline);
 193                 SaveDword(hKey,     _T("lfWeight"),         Globals.lfFont.lfWeight);
 194                 SaveDword(hKey,     _T("iPointSize"),       PointSizeFromHeight(Globals.lfFont.lfHeight));
 195                 SaveDword(hKey,     _T("fWrap"),            Globals.bWrapLongLines ? 1 : 0);
 196                 SaveDword(hKey,     _T("fStatusBar"),       Globals.bShowStatusBar ? 1 : 0);
 197                 SaveDword(hKey,     _T("iWindowPosX"),      Globals.main_rect.left);
 198                 SaveDword(hKey,     _T("iWindowPosY"),      Globals.main_rect.top);
 199                 SaveDword(hKey,     _T("iWindowPosDX"),     Globals.main_rect.right - Globals.main_rect.left);
 200                 SaveDword(hKey,     _T("iWindowPosDY"),     Globals.main_rect.bottom - Globals.main_rect.top);
 201                 RegCloseKey(hKey);
 202         }
 203
 204 }