csutil/win32/registrycfg.h
Go to the documentation of this file.00001 /* 00002 Copyright (C) 2003 by Jorrit Tyberghein 00003 (C) 2003 by Frank Richter 00004 00005 This library is free software; you can redistribute it and/or 00006 modify it under the terms of the GNU Library General Public 00007 License as published by the Free Software Foundation; either 00008 version 2 of the License, or (at your option) any later version. 00009 00010 This library is distributed in the hope that it will be useful, 00011 but WITHOUT ANY WARRANTY; without even the implied warranty of 00012 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00013 Library General Public License for more details. 00014 00015 You should have received a copy of the GNU Library General Public 00016 License along with this library; if not, write to the Free 00017 Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 00018 */ 00019 00020 #ifndef __CS_CSSYS_WIN32_REGISTRYCFG_H__ 00021 #define __CS_CSSYS_WIN32_REGISTRYCFG_H__ 00022 00027 #include "csextern.h" 00028 #include "iutil/cfgfile.h" 00029 #include "csutil/scf_implementation.h" 00030 #include "csutil/strhash.h" 00031 #include "csutil/array.h" 00032 00033 class csWin32RegistryIterator; 00034 00043 class CS_CRYSTALSPACE_EXPORT csWin32RegistryConfig : 00044 public scfImplementation1<csWin32RegistryConfig, iConfigFile> 00045 { 00046 private: 00047 friend class csWin32RegistryIterator; 00048 00049 HKEY hKey; 00050 HKEY hKeyParent; 00051 char* Prefix; 00052 // whether this key is opened w/ write access. 00053 bool writeAccess; 00054 char* Key; 00055 00056 typedef struct 00057 { 00058 csStringHash strings; 00059 } rcStatus; 00060 mutable rcStatus status; 00061 00062 csArray<csWin32RegistryIterator*> iters; 00063 00064 // convert CS "x.y.z" keys to registry "x\y\z" 00065 void ReplaceSeparators (char* key) const; 00066 00067 bool TryOpen (HKEY parent, HKEY& regKey, DWORD access, const char* keyName, 00068 bool create); 00069 00070 // convenience class, used to delete[] a buffer on function return 00071 struct Block_O_Mem 00072 { 00073 BYTE* data; 00074 size_t size; 00075 Block_O_Mem () : data(0), size(0) { } 00076 void Clear() { delete[] data; } 00077 void SetSize (size_t sz) { Clear(); size = sz; data = new BYTE[sz]; } 00078 ~Block_O_Mem() { Clear(); } 00079 }; 00080 // To shorten calls to RegSetValueEx() 00081 bool InternalSetValue (const char* Key, 00082 DWORD type, const void* data, size_t datasize); 00083 // To shorten calls to RegQueryValueEx() 00084 bool InternalGetValue (const char* Key, 00085 DWORD& type, Block_O_Mem& data) const; 00086 00087 /* 00088 Helper functions to convert the data from the registry to the 00089 requested format 00090 */ 00091 int RegToInt (DWORD type, Block_O_Mem& data, int Def) const; 00092 float RegToFloat (DWORD type, Block_O_Mem& data, float Def) const; 00093 const char* RegToStr (DWORD type, Block_O_Mem& data, const char* Def) const; 00094 bool RegToBool (DWORD type, Block_O_Mem& data, bool Def) const; 00095 00096 // Check whether we have registry write access. 00097 bool WriteAccess(); 00098 public: 00099 00100 csWin32RegistryConfig (); 00101 virtual ~csWin32RegistryConfig(); 00102 00110 bool Open (const char* Key, HKEY parent = HKEY_CURRENT_USER); 00117 void Close (); 00118 00119 virtual const char* GetFileName () const; 00120 virtual iVFS* GetVFS () const; 00121 virtual void SetFileName (const char*, iVFS*); 00122 virtual bool Load (const char* iFileName, iVFS* = 0, bool Merge = false, 00123 bool NewWins = true); 00124 virtual bool Save (); 00125 virtual bool Save (const char *iFileName, iVFS* = 0); 00126 00127 virtual void Clear (); 00128 00129 virtual csPtr<iConfigIterator> Enumerate (const char *Subsection = 0); 00130 virtual bool KeyExists (const char *Key) const; 00131 virtual bool SubsectionExists (const char *Subsection) const; 00132 00133 virtual int GetInt (const char *Key, int Def = 0) const; 00134 virtual float GetFloat (const char *Key, float Def = 0.0) const; 00135 virtual const char *GetStr (const char *Key, const char *Def = "") const; 00136 virtual bool GetBool (const char *Key, bool Def = false) const; 00137 virtual const char *GetComment (const char *Key) const; 00138 00139 virtual void SetStr (const char *Key, const char *Val); 00140 virtual void SetInt (const char *Key, int Value); 00141 virtual void SetFloat (const char *Key, float Value); 00142 virtual void SetBool (const char *Key, bool Value); 00143 virtual bool SetComment (const char *Key, const char *Text); 00144 virtual void DeleteKey (const char *Key); 00145 virtual const char *GetEOFComment () const; 00146 virtual void SetEOFComment (const char *Text); 00147 }; 00148 00149 #endif 00150
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