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 #include <winreg.h>
  26
  27 static LPCTSTR s_szRegistryKey = _T("Software\\Microsoft\\Notepad");
  28
  29
  30 static LONG HeightFromPointSize(DWORD dwPointSize)
  31 {
  32         LONG lHeight;
  33         HDC hDC;
  34
  35         hDC = GetDC(NULL);
  36         lHeight = -MulDiv(dwPointSize, GetDeviceCaps(hDC, LOGPIXELSY), 720);
  37         ReleaseDC(NULL, hDC);
  38
  39         return lHeight;
  40 }
  41
  42 static DWORD PointSizeFromHeight(LONG lHeight)
  43 {
  44         DWORD dwPointSize;
  45         HDC hDC;
  46
  47         hDC = GetDC(NULL);
  48         dwPointSize = -MulDiv(lHeight, 720, GetDeviceCaps(hDC, LOGPIXELSY));
  49         ReleaseDC(NULL, hDC);
  50
  51         /* round to nearest multiple of 10 */
  52         dwPointSize += 5;
  53         dwPointSize -= dwPointSize % 10;
  54
  55         return dwPointSize;
  56 }
  57
  58 static BOOL QueryGeneric(HKEY hKey, LPCTSTR pszValueNameT, DWORD dwExpectedType,
  59         LPVOID pvResult, DWORD dwResultSize)
  60 {
  61         DWORD dwType, cbData;
  62         LPVOID *pTemp = _alloca(dwResultSize);
  63
  64         ZeroMemory(pTemp, dwResultSize);
  65
  66         cbData = dwResultSize;
  67         if (RegQueryValueEx(hKey, pszValueNameT, NULL, &dwType, (LPBYTE) pTemp, &cbData) != ERROR_SUCCESS)
  68                 return FALSE;
  69
  70         if (dwType != dwExpectedType)
  71                 return FALSE;
  72
  73         memcpy(pvResult, pTemp, cbData);
  74         return TRUE;
  75 }
  76
  77 static BOOL QueryDword(HKEY hKey, LPCTSTR pszValueName, DWORD *pdwResult)
  78 {
  79         return QueryGeneric(hKey, pszValueName, REG_DWORD, pdwResult, sizeof(*pdwResult));
  80 }
  81
  82 static BOOL QueryByte(HKEY hKey, LPCTSTR pszValueName, BYTE *pbResult)
  83 {
  84         DWORD dwResult;
  85         if (!QueryGeneric(hKey, pszValueName, REG_DWORD, &dwResult, sizeof(dwResult)))
  86                 return FALSE;
  87         if (dwResult >= 0x100)
  88                 return FALSE;
  89         *pbResult = (BYTE) dwResult;
  90         return TRUE;
  91 }
  92
  93 static BOOL QueryBool(HKEY hKey, LPCTSTR pszValueName, BOOL *pbResult)
  94 {
  95         DWORD dwResult;
  96         if (!QueryDword(hKey, pszValueName, &dwResult))
  97                 return FALSE;
  98         *pbResult = dwResult ? TRUE : FALSE;
  99         return TRUE;
 100 }
 101
 102 static BOOL QueryString(HKEY hKey, LPCTSTR pszValueName, LPTSTR pszResult, DWORD dwResultSize)
 103 {
 104         return QueryGeneric(hKey, pszValueName, REG_SZ, pszResult, dwResultSize * sizeof(TCHAR));
 105 }
 106
 107 void LoadSettings(void)
 108 {
 109         HKEY hKey = NULL;
 110         HFONT hFont;
 111         DWORD dwPointSize = 0;
 112         INT base_length, dx, dy;
 113
 114         base_length = (GetSystemMetrics(SM_CXSCREEN) > GetSystemMetrics(SM_CYSCREEN))?
 115                 GetSystemMetrics(SM_CYSCREEN) : GetSystemMetrics(SM_CXSCREEN);
 116
 117         dx = (INT)(base_length * .95);
 118         dy = dx * 3 / 4;
 119         SetRect( &Globals.main_rect, 0, 0, dx, dy );
 120
 121         if (RegOpenKey(HKEY_CURRENT_USER, s_szRegistryKey, &hKey) == ERROR_SUCCESS)
 122         {
 123                 QueryByte(hKey,     _T("lfCharSet"),        &Globals.lfFont.lfCharSet);
 124                 QueryByte(hKey,     _T("lfClipPrecision"),  &Globals.lfFont.lfClipPrecision);
 125                 QueryDword(hKey,    _T("lfEscapement"),     (DWORD*)&Globals.lfFont.lfEscapement);
 126                 QueryString(hKey,   _T("lfFaceName"),       Globals.lfFont.lfFaceName, sizeof(Globals.lfFont.lfFaceName) / sizeof(Globals.lfFont.lfFaceName[0]));
 127                 QueryByte(hKey,     _T("lfItalic"),         &Globals.lfFont.lfItalic);
 128                 QueryDword(hKey,    _T("lfOrientation"),    (DWORD*)&Globals.lfFont.lfOrientation);
 129                 QueryByte(hKey,     _T("lfOutPrecision"),   &Globals.lfFont.lfOutPrecision);
 130                 QueryByte(hKey,     _T("lfPitchAndFamily"), &Globals.lfFont.lfPitchAndFamily);
 131                 QueryByte(hKey,     _T("lfQuality"),        &Globals.lfFont.lfQuality);
 132                 QueryByte(hKey,     _T("lfStrikeOut"),      &Globals.lfFont.lfStrikeOut);
 133                 QueryByte(hKey,     _T("lfUnderline"),      &Globals.lfFont.lfUnderline);
 134                 QueryDword(hKey,    _T("lfWeight"),         (DWORD*)&Globals.lfFont.lfWeight);
 135                 QueryDword(hKey,    _T("iPointSize"),       &dwPointSize);
 136                 QueryBool(hKey,     _T("fWrap"),            &Globals.bWrapLongLines);
 137                 QueryBool(hKey,     _T("fStatusBar"),       &Globals.bShowStatusBar);
 138
 139                 QueryDword(hKey,    _T("iWindowPosX"),      (DWORD*)&Globals.main_rect.left);
 140                 QueryDword(hKey,    _T("iWindowPosY"),      (DWORD*)&Globals.main_rect.top);
 141                 QueryDword(hKey,    _T("iWindowPosDX"),     (DWORD*)&dx);
 142                 QueryDword(hKey,    _T("iWindowPosDY"),     (DWORD*)&dy);
 143
 144         Globals.main_rect.right = Globals.main_rect.left + dx;
 145         Globals.main_rect.bottom = Globals.main_rect.top + dy;
 146
 147                 Globals.bShowStatusBar = !Globals.bShowStatusBar; /* invert value becuase DIALOG_ViewStatusBar will be called to show it*/
 148
 149                 if (dwPointSize != 0)
 150                         Globals.lfFont.lfHeight = HeightFromPointSize(dwPointSize);
 151
 152                 RegCloseKey(hKey);
 153         }
 154
 155         hFont = CreateFontIndirect(&Globals.lfFont);
 156         if (hFont)
 157         {
 158                 if (Globals.hFont)
 159                         DeleteObject(Globals.hFont);
 160                 Globals.hFont = hFont;
 161         }
 162 }
 163
 164 static BOOL SaveDword(HKEY hKey, LPCTSTR pszValueNameT, DWORD dwValue)
 165 {
 166         return RegSetValueEx(hKey, pszValueNameT, 0, REG_DWORD, (LPBYTE) &dwValue, sizeof(dwValue)) == ERROR_SUCCESS;
 167 }
 168
 169 static BOOL SaveString(HKEY hKey, LPCTSTR pszValueNameT, LPCTSTR pszValue)
 170 {
 171         return RegSetValueEx(hKey, pszValueNameT, 0, REG_SZ, (LPBYTE) pszValue, (DWORD) _tcslen(pszValue) * sizeof(*pszValue)) == ERROR_SUCCESS;
 172 }
 173
 174 void SaveSettings(void)
 175 {
 176         HKEY hKey;
 177         DWORD dwDisposition;
 178
 179     GetWindowRect(Globals.hMainWnd, &Globals.main_rect);
 180
 181         if (RegCreateKeyEx(HKEY_CURRENT_USER, s_szRegistryKey, 0, NULL, 0, KEY_ALL_ACCESS, NULL, &hKey, &dwDisposition)
 182                 == ERROR_SUCCESS)
 183         {
 184                 SaveDword(hKey,     _T("lfCharSet"),        Globals.lfFont.lfCharSet);
 185                 SaveDword(hKey,     _T("lfClipPrecision"),  Globals.lfFont.lfClipPrecision);
 186                 SaveDword(hKey,     _T("lfEscapement"),     Globals.lfFont.lfEscapement);
 187                 SaveString(hKey,    _T("lfFaceName"),       Globals.lfFont.lfFaceName);
 188                 SaveDword(hKey,     _T("lfItalic"),         Globals.lfFont.lfItalic);
 189                 SaveDword(hKey,     _T("lfOrientation"),    Globals.lfFont.lfOrientation);
 190                 SaveDword(hKey,     _T("lfOutPrecision"),   Globals.lfFont.lfOutPrecision);
 191                 SaveDword(hKey,     _T("lfPitchAndFamily"), Globals.lfFont.lfPitchAndFamily);
 192                 SaveDword(hKey,     _T("lfQuality"),        Globals.lfFont.lfQuality);
 193                 SaveDword(hKey,     _T("lfStrikeOut"),      Globals.lfFont.lfStrikeOut);
 194                 SaveDword(hKey,     _T("lfUnderline"),      Globals.lfFont.lfUnderline);
 195                 SaveDword(hKey,     _T("lfWeight"),         Globals.lfFont.lfWeight);
 196                 SaveDword(hKey,     _T("iPointSize"),       PointSizeFromHeight(Globals.lfFont.lfHeight));
 197                 SaveDword(hKey,     _T("fWrap"),            Globals.bWrapLongLines ? 1 : 0);
 198                 SaveDword(hKey,     _T("fStatusBar"),       Globals.bShowStatusBar ? 1 : 0);
 199                 SaveDword(hKey,     _T("iWindowPosX"),      Globals.main_rect.left);
 200                 SaveDword(hKey,     _T("iWindowPosY"),      Globals.main_rect.top);
 201                 SaveDword(hKey,     _T("iWindowPosDX"),     Globals.main_rect.right - Globals.main_rect.left);
 202                 SaveDword(hKey,     _T("iWindowPosDY"),     Globals.main_rect.bottom - Globals.main_rect.top);
 203                 RegCloseKey(hKey);
 204         }
 205
 206 }