Glenn Maynard
113 lines
3.0 KiB
C++
113 lines
3.0 KiB
C++
/* Preference - Holds user-chosen preferences that are saved between sessions. */
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#ifndef PREFERENCE_H
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#define PREFERENCE_H
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#include "EnumHelper.h"
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class IniFile;
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enum PrefsGroup
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{
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Debug,
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Editor,
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Options,
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NUM_PREFS_GROUPS
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};
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const CString& PrefsGroupToString( PrefsGroup pg );
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struct lua_State;
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class IPreference
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{
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public:
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IPreference( PrefsGroup PrefsGroup, const CString& sName );
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virtual ~IPreference();
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virtual void LoadDefault() = 0;
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virtual void ReadFrom( const IniFile &ini );
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virtual void WriteTo( IniFile &ini ) const;
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virtual CString ToString() const = 0;
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virtual void FromString( const CString &s ) = 0;
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virtual void SetFromStack( lua_State *L );
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virtual void PushValue( lua_State *L ) const;
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PrefsGroup GetPrefsGroup() const { return m_PrefsGroup; }
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const CString &GetName() const { return m_sName; }
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protected:
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PrefsGroup m_PrefsGroup;
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CString m_sName;
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};
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template <class T>
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class Preference : public IPreference
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{
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private:
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// Make currentValue first in the list so that we can pass this object
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// as an argument in a var_arg function as in printf.
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T m_currentValue;
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T m_defaultValue;
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public:
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Preference( PrefsGroup PrefsGroup, const CString& sName, const T& defaultValue ):
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IPreference( PrefsGroup, sName ),
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m_currentValue( defaultValue ),
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m_defaultValue( defaultValue )
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{
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LoadDefault();
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}
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CString ToString() const;
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void FromString( const CString &s );
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void SetFromStack( lua_State *L );
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void PushValue( lua_State *L ) const;
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void LoadDefault()
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{
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m_currentValue = m_defaultValue;
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}
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T &Value()
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{
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return m_currentValue;
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}
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operator const T () const
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{
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return m_currentValue;
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}
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void operator=( const T& other )
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{
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m_currentValue = other;
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}
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};
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#endif
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/*
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* (c) 2001-2004 Chris Danford, Chris Gomez
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* All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, and/or sell copies of the Software, and to permit persons to
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* whom the Software is furnished to do so, provided that the above
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* copyright notice(s) and this permission notice appear in all copies of
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* the Software and that both the above copyright notice(s) and this
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* permission notice appear in supporting documentation.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF
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* THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS
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* INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT
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* OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
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* OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
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* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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