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
  59 QueryGeneric(HKEY hKey, LPCTSTR pszValueNameT, DWORD dwExpectedType,
  60              LPVOID pvResult, DWORD dwResultSize)
  61 {
  62     DWORD dwType, cbData;
  63     LPVOID *pTemp = _alloca(dwResultSize);
  64
  65     ZeroMemory(pTemp, dwResultSize);
  66
  67     cbData = dwResultSize;
  68     if (RegQueryValueEx(hKey, pszValueNameT, NULL, &dwType, (LPBYTE) pTemp, &cbData) != ERROR_SUCCESS)
  69         return FALSE;
  70
  71     if (dwType != dwExpectedType)
  72         return FALSE;
  73
  74     memcpy(pvResult, pTemp, cbData);
  75     return TRUE;
  76 }
  77
  78 static BOOL QueryDword(HKEY hKey, LPCTSTR pszValueName, DWORD *pdwResult)
  79 {
  80     return QueryGeneric(hKey, pszValueName, REG_DWORD, pdwResult, sizeof(*pdwResult));
  81 }
  82
  83 static BOOL QueryByte(HKEY hKey, LPCTSTR pszValueName, BYTE *pbResult)
  84 {
  85     DWORD dwResult;
  86     if (!QueryGeneric(hKey, pszValueName, REG_DWORD, &dwResult, sizeof(dwResult)))
  87         return FALSE;
  88     if (dwResult >= 0x100)
  89         return FALSE;
  90     *pbResult = (BYTE) dwResult;
  91     return TRUE;
  92 }
  93
  94 static BOOL QueryBool(HKEY hKey, LPCTSTR pszValueName, BOOL *pbResult)
  95 {
  96     DWORD dwResult;
  97     if (!QueryDword(hKey, pszValueName, &dwResult))
  98         return FALSE;
  99     *pbResult = dwResult ? TRUE : FALSE;
 100     return TRUE;
 101 }
 102
 103 static BOOL QueryString(HKEY hKey, LPCTSTR pszValueName, LPTSTR pszResult, DWORD dwResultSize)
 104 {
 105     return QueryGeneric(hKey, pszValueName, REG_SZ, pszResult, dwResultSize * sizeof(TCHAR));
 106 }
 107
 108 /***********************************************************************
 109  *
 110  *           NOTEPAD_LoadSettingsFromRegistry
 111  *
 112  *  Load settings from registry HKCU\Software\Microsoft\Notepad.
 113  */
 114 void NOTEPAD_LoadSettingsFromRegistry(void)
 115 {
 116     HKEY hKey = NULL;
 117     HFONT hFont;
 118     DWORD dwPointSize = 0;
 119     INT base_length, dx, dy;
 120
 121     base_length = (GetSystemMetrics(SM_CXSCREEN) > GetSystemMetrics(SM_CYSCREEN)) ?
 122                   GetSystemMetrics(SM_CYSCREEN) : GetSystemMetrics(SM_CXSCREEN);
 123
 124     dx = (INT)(base_length * .95);
 125     dy = dx * 3 / 4;
 126     SetRect(&Globals.main_rect, 0, 0, dx, dy);
 127
 128     if (RegOpenKey(HKEY_CURRENT_USER, s_szRegistryKey, &hKey) == ERROR_SUCCESS)
 129     {
 130         QueryByte(hKey, _T("lfCharSet"), &Globals.lfFont.lfCharSet);
 131         QueryByte(hKey, _T("lfClipPrecision"), &Globals.lfFont.lfClipPrecision);
 132         QueryDword(hKey, _T("lfEscapement"), (DWORD*)&Globals.lfFont.lfEscapement);
 133         QueryString(hKey, _T("lfFaceName"), Globals.lfFont.lfFaceName, ARRAY_SIZE(Globals.lfFont.lfFaceName));
 134         QueryByte(hKey, _T("lfItalic"), &Globals.lfFont.lfItalic);
 135         QueryDword(hKey, _T("lfOrientation"), (DWORD*)&Globals.lfFont.lfOrientation);
 136         QueryByte(hKey, _T("lfOutPrecision"), &Globals.lfFont.lfOutPrecision);
 137         QueryByte(hKey, _T("lfPitchAndFamily"), &Globals.lfFont.lfPitchAndFamily);
 138         QueryByte(hKey, _T("lfQuality"), &Globals.lfFont.lfQuality);
 139         QueryByte(hKey, _T("lfStrikeOut"), &Globals.lfFont.lfStrikeOut);
 140         QueryByte(hKey, _T("lfUnderline"), &Globals.lfFont.lfUnderline);
 141         QueryDword(hKey, _T("lfWeight"), (DWORD*)&Globals.lfFont.lfWeight);
 142         QueryDword(hKey, _T("iPointSize"), &dwPointSize);
 143         QueryBool(hKey, _T("fWrap"), &Globals.bWrapLongLines);
 144         QueryBool(hKey, _T("fStatusBar"), &Globals.bShowStatusBar);
 145         QueryString(hKey, _T("szHeader"), Globals.szHeader, ARRAY_SIZE(Globals.szHeader));
 146         QueryString(hKey, _T("szTrailer"), Globals.szFooter, ARRAY_SIZE(Globals.szFooter));
 147         QueryDword(hKey, _T("iMarginLeft"), (DWORD*)&Globals.lMargins.left);
 148         QueryDword(hKey, _T("iMarginTop"), (DWORD*)&Globals.lMargins.top);
 149         QueryDword(hKey, _T("iMarginRight"), (DWORD*)&Globals.lMargins.right);
 150         QueryDword(hKey, _T("iMarginBottom"), (DWORD*)&Globals.lMargins.bottom);
 151
 152         QueryDword(hKey, _T("iWindowPosX"), (DWORD*)&Globals.main_rect.left);
 153         QueryDword(hKey, _T("iWindowPosY"), (DWORD*)&Globals.main_rect.top);
 154         QueryDword(hKey, _T("iWindowPosDX"), (DWORD*)&dx);
 155         QueryDword(hKey, _T("iWindowPosDY"), (DWORD*)&dy);
 156
 157         Globals.main_rect.right = Globals.main_rect.left + dx;
 158         Globals.main_rect.bottom = Globals.main_rect.top + dy;
 159
 160         /* invert value because DIALOG_ViewStatusBar will be called to show it */
 161         Globals.bShowStatusBar = !Globals.bShowStatusBar;
 162
 163         if (dwPointSize != 0)
 164             Globals.lfFont.lfHeight = HeightFromPointSize(dwPointSize);
 165         else
 166             Globals.lfFont.lfHeight = HeightFromPointSize(100);
 167
 168         RegCloseKey(hKey);
 169     }
 170     else
 171     {
 172         /* If no settings are found in the registry, then use default values */
 173         Globals.lfFont.lfCharSet = 163;
 174         Globals.lfFont.lfClipPrecision = 2;
 175         Globals.lfFont.lfEscapement = 0;
 176         _tcscpy(Globals.lfFont.lfFaceName, _T("Lucida Console"));
 177         Globals.lfFont.lfItalic = 0;
 178         Globals.lfFont.lfOrientation = 0;
 179         Globals.lfFont.lfOutPrecision = 3;
 180         Globals.lfFont.lfPitchAndFamily = 34;
 181         Globals.lfFont.lfQuality = 1;
 182         Globals.lfFont.lfStrikeOut = 0;
 183         Globals.lfFont.lfUnderline = 0;
 184         Globals.lfFont.lfWeight = 400;
 185         Globals.lfFont.lfHeight = HeightFromPointSize(100);
 186     }
 187
 188     hFont = CreateFontIndirect(&Globals.lfFont);
 189     SendMessage(Globals.hEdit, WM_SETFONT, (WPARAM)hFont, (LPARAM)TRUE);
 190     if (hFont)
 191     {
 192         if (Globals.hFont)
 193             DeleteObject(Globals.hFont);
 194         Globals.hFont = hFont;
 195     }
 196 }
 197
 198 static BOOL SaveDword(HKEY hKey, LPCTSTR pszValueNameT, DWORD dwValue)
 199 {
 200     return RegSetValueEx(hKey, pszValueNameT, 0, REG_DWORD, (LPBYTE) &dwValue, sizeof(dwValue)) == ERROR_SUCCESS;
 201 }
 202
 203 static BOOL SaveString(HKEY hKey, LPCTSTR pszValueNameT, LPCTSTR pszValue)
 204 {
 205     return RegSetValueEx(hKey, pszValueNameT, 0, REG_SZ, (LPBYTE) pszValue, (DWORD) _tcslen(pszValue) * sizeof(*pszValue)) == ERROR_SUCCESS;
 206 }
 207
 208 /***********************************************************************
 209  *
 210  *           NOTEPAD_SaveSettingsToRegistry
 211  *
 212  *  Save settings to registry HKCU\Software\Microsoft\Notepad.
 213  */
 214 void NOTEPAD_SaveSettingsToRegistry(void)
 215 {
 216     HKEY hKey;
 217     DWORD dwDisposition;
 218
 219     GetWindowRect(Globals.hMainWnd, &Globals.main_rect);
 220
 221     if (RegCreateKeyEx(HKEY_CURRENT_USER, s_szRegistryKey,
 222                        0, NULL, 0, KEY_SET_VALUE, NULL,
 223                        &hKey, &dwDisposition) == ERROR_SUCCESS)
 224     {
 225         SaveDword(hKey, _T("lfCharSet"), Globals.lfFont.lfCharSet);
 226         SaveDword(hKey, _T("lfClipPrecision"), Globals.lfFont.lfClipPrecision);
 227         SaveDword(hKey, _T("lfEscapement"), Globals.lfFont.lfEscapement);
 228         SaveString(hKey, _T("lfFaceName"), Globals.lfFont.lfFaceName);
 229         SaveDword(hKey, _T("lfItalic"), Globals.lfFont.lfItalic);
 230         SaveDword(hKey, _T("lfOrientation"), Globals.lfFont.lfOrientation);
 231         SaveDword(hKey, _T("lfOutPrecision"), Globals.lfFont.lfOutPrecision);
 232         SaveDword(hKey, _T("lfPitchAndFamily"), Globals.lfFont.lfPitchAndFamily);
 233         SaveDword(hKey, _T("lfQuality"), Globals.lfFont.lfQuality);
 234         SaveDword(hKey, _T("lfStrikeOut"), Globals.lfFont.lfStrikeOut);
 235         SaveDword(hKey, _T("lfUnderline"), Globals.lfFont.lfUnderline);
 236         SaveDword(hKey, _T("lfWeight"), Globals.lfFont.lfWeight);
 237         SaveDword(hKey, _T("iPointSize"), PointSizeFromHeight(Globals.lfFont.lfHeight));
 238         SaveDword(hKey, _T("fWrap"), Globals.bWrapLongLines ? 1 : 0);
 239         SaveDword(hKey, _T("fStatusBar"), Globals.bShowStatusBar ? 1 : 0);
 240         SaveString(hKey, _T("szHeader"), Globals.szHeader);
 241         SaveString(hKey, _T("szTrailer"), Globals.szFooter);
 242         SaveDword(hKey, _T("iMarginLeft"), Globals.lMargins.left);
 243         SaveDword(hKey, _T("iMarginTop"), Globals.lMargins.top);
 244         SaveDword(hKey, _T("iMarginRight"), Globals.lMargins.right);
 245         SaveDword(hKey, _T("iMarginBottom"), Globals.lMargins.bottom);
 246         SaveDword(hKey, _T("iWindowPosX"), Globals.main_rect.left);
 247         SaveDword(hKey, _T("iWindowPosY"), Globals.main_rect.top);
 248         SaveDword(hKey, _T("iWindowPosDX"), Globals.main_rect.right - Globals.main_rect.left);
 249         SaveDword(hKey, _T("iWindowPosDY"), Globals.main_rect.bottom - Globals.main_rect.top);
 250
 251         RegCloseKey(hKey);
 252     }
 253 }