dhewm3/neo/idlib/Dict.h
2011-12-10 15:34:48 +01:00

301 lines
10 KiB
C++

/*
===========================================================================
Doom 3 GPL Source Code
Copyright (C) 1999-2011 id Software LLC, a ZeniMax Media company.
This file is part of the Doom 3 GPL Source Code ("Doom 3 Source Code").
Doom 3 Source Code is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Doom 3 Source Code is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Doom 3 Source Code. If not, see <http://www.gnu.org/licenses/>.
In addition, the Doom 3 Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Doom 3 Source Code. If not, please request a copy in writing from id Software at the address below.
If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.
===========================================================================
*/
#ifndef __DICT_H__
#define __DICT_H__
/*
===============================================================================
Key/value dictionary
This is a dictionary class that tracks an arbitrary number of key / value
pair combinations. It is used for map entity spawning, GUI state management,
and other things.
Keys are compared case-insensitive.
Does not allocate memory until the first key/value pair is added.
===============================================================================
*/
class idKeyValue {
friend class idDict;
public:
const idStr & GetKey( void ) const { return *key; }
const idStr & GetValue( void ) const { return *value; }
size_t Allocated( void ) const { return key->Allocated() + value->Allocated(); }
size_t Size( void ) const { return sizeof( *this ) + key->Size() + value->Size(); }
bool operator==( const idKeyValue &kv ) const { return ( key == kv.key && value == kv.value ); }
private:
const idPoolStr * key;
const idPoolStr * value;
};
class idDict {
public:
idDict( void );
idDict( const idDict &other ); // allow declaration with assignment
~idDict( void );
// set the granularity for the index
void SetGranularity( int granularity );
// set hash size
void SetHashSize( int hashSize );
// clear existing key/value pairs and copy all key/value pairs from other
idDict & operator=( const idDict &other );
// copy from other while leaving existing key/value pairs in place
void Copy( const idDict &other );
// clear existing key/value pairs and transfer key/value pairs from other
void TransferKeyValues( idDict &other );
// parse dict from parser
bool Parse( idParser &parser );
// copy key/value pairs from other dict not present in this dict
void SetDefaults( const idDict *dict );
// clear dict freeing up memory
void Clear( void );
// print the dict
void Print() const;
size_t Allocated( void ) const;
size_t Size( void ) const { return sizeof( *this ) + Allocated(); }
void Set( const char *key, const char *value );
void SetFloat( const char *key, float val );
void SetInt( const char *key, int val );
void SetBool( const char *key, bool val );
void SetVector( const char *key, const idVec3 &val );
void SetVec2( const char *key, const idVec2 &val );
void SetVec4( const char *key, const idVec4 &val );
void SetAngles( const char *key, const idAngles &val );
void SetMatrix( const char *key, const idMat3 &val );
// these return default values of 0.0, 0 and false
const char * GetString( const char *key, const char *defaultString = "" ) const;
float GetFloat( const char *key, const char *defaultString = "0" ) const;
int GetInt( const char *key, const char *defaultString = "0" ) const;
bool GetBool( const char *key, const char *defaultString = "0" ) const;
idVec3 GetVector( const char *key, const char *defaultString = NULL ) const;
idVec2 GetVec2( const char *key, const char *defaultString = NULL ) const;
idVec4 GetVec4( const char *key, const char *defaultString = NULL ) const;
idAngles GetAngles( const char *key, const char *defaultString = NULL ) const;
idMat3 GetMatrix( const char *key, const char *defaultString = NULL ) const;
bool GetString( const char *key, const char *defaultString, const char **out ) const;
bool GetString( const char *key, const char *defaultString, idStr &out ) const;
bool GetFloat( const char *key, const char *defaultString, float &out ) const;
bool GetInt( const char *key, const char *defaultString, int &out ) const;
bool GetBool( const char *key, const char *defaultString, bool &out ) const;
bool GetVector( const char *key, const char *defaultString, idVec3 &out ) const;
bool GetVec2( const char *key, const char *defaultString, idVec2 &out ) const;
bool GetVec4( const char *key, const char *defaultString, idVec4 &out ) const;
bool GetAngles( const char *key, const char *defaultString, idAngles &out ) const;
bool GetMatrix( const char *key, const char *defaultString, idMat3 &out ) const;
int GetNumKeyVals( void ) const;
const idKeyValue * GetKeyVal( int index ) const;
// returns the key/value pair with the given key
// returns NULL if the key/value pair does not exist
const idKeyValue * FindKey( const char *key ) const;
// returns the index to the key/value pair with the given key
// returns -1 if the key/value pair does not exist
int FindKeyIndex( const char *key ) const;
// delete the key/value pair with the given key
void Delete( const char *key );
// finds the next key/value pair with the given key prefix.
// lastMatch can be used to do additional searches past the first match.
const idKeyValue * MatchPrefix( const char *prefix, const idKeyValue *lastMatch = NULL ) const;
// randomly chooses one of the key/value pairs with the given key prefix and returns it's value
const char * RandomPrefix( const char *prefix, idRandom &random ) const;
void WriteToFileHandle( idFile *f ) const;
void ReadFromFileHandle( idFile *f );
// returns a unique checksum for this dictionary's content
int Checksum( void ) const;
static void Init( void );
static void Shutdown( void );
static void ShowMemoryUsage_f( const idCmdArgs &args );
static void ListKeys_f( const idCmdArgs &args );
static void ListValues_f( const idCmdArgs &args );
private:
idList<idKeyValue> args;
idHashIndex argHash;
static idStrPool globalKeys;
static idStrPool globalValues;
};
ID_INLINE idDict::idDict( void ) {
args.SetGranularity( 16 );
argHash.SetGranularity( 16 );
argHash.Clear( 128, 16 );
}
ID_INLINE idDict::idDict( const idDict &other ) {
*this = other;
}
ID_INLINE idDict::~idDict( void ) {
Clear();
}
ID_INLINE void idDict::SetGranularity( int granularity ) {
args.SetGranularity( granularity );
argHash.SetGranularity( granularity );
}
ID_INLINE void idDict::SetHashSize( int hashSize ) {
if ( args.Num() == 0 ) {
argHash.Clear( hashSize, 16 );
}
}
ID_INLINE void idDict::SetFloat( const char *key, float val ) {
Set( key, va( "%f", val ) );
}
ID_INLINE void idDict::SetInt( const char *key, int val ) {
Set( key, va( "%i", val ) );
}
ID_INLINE void idDict::SetBool( const char *key, bool val ) {
Set( key, va( "%i", val ) );
}
ID_INLINE void idDict::SetVector( const char *key, const idVec3 &val ) {
Set( key, val.ToString() );
}
ID_INLINE void idDict::SetVec4( const char *key, const idVec4 &val ) {
Set( key, val.ToString() );
}
ID_INLINE void idDict::SetVec2( const char *key, const idVec2 &val ) {
Set( key, val.ToString() );
}
ID_INLINE void idDict::SetAngles( const char *key, const idAngles &val ) {
Set( key, val.ToString() );
}
ID_INLINE void idDict::SetMatrix( const char *key, const idMat3 &val ) {
Set( key, val.ToString() );
}
ID_INLINE bool idDict::GetString( const char *key, const char *defaultString, const char **out ) const {
const idKeyValue *kv = FindKey( key );
if ( kv ) {
*out = kv->GetValue();
return true;
}
*out = defaultString;
return false;
}
ID_INLINE bool idDict::GetString( const char *key, const char *defaultString, idStr &out ) const {
const idKeyValue *kv = FindKey( key );
if ( kv ) {
out = kv->GetValue();
return true;
}
out = defaultString;
return false;
}
ID_INLINE const char *idDict::GetString( const char *key, const char *defaultString ) const {
const idKeyValue *kv = FindKey( key );
if ( kv ) {
return kv->GetValue();
}
return defaultString;
}
ID_INLINE float idDict::GetFloat( const char *key, const char *defaultString ) const {
return atof( GetString( key, defaultString ) );
}
ID_INLINE int idDict::GetInt( const char *key, const char *defaultString ) const {
return atoi( GetString( key, defaultString ) );
}
ID_INLINE bool idDict::GetBool( const char *key, const char *defaultString ) const {
return ( atoi( GetString( key, defaultString ) ) != 0 );
}
ID_INLINE idVec3 idDict::GetVector( const char *key, const char *defaultString ) const {
idVec3 out;
GetVector( key, defaultString, out );
return out;
}
ID_INLINE idVec2 idDict::GetVec2( const char *key, const char *defaultString ) const {
idVec2 out;
GetVec2( key, defaultString, out );
return out;
}
ID_INLINE idVec4 idDict::GetVec4( const char *key, const char *defaultString ) const {
idVec4 out;
GetVec4( key, defaultString, out );
return out;
}
ID_INLINE idAngles idDict::GetAngles( const char *key, const char *defaultString ) const {
idAngles out;
GetAngles( key, defaultString, out );
return out;
}
ID_INLINE idMat3 idDict::GetMatrix( const char *key, const char *defaultString ) const {
idMat3 out;
GetMatrix( key, defaultString, out );
return out;
}
ID_INLINE int idDict::GetNumKeyVals( void ) const {
return args.Num();
}
ID_INLINE const idKeyValue *idDict::GetKeyVal( int index ) const {
if ( index >= 0 && index < args.Num() ) {
return &args[ index ];
}
return NULL;
}
#endif /* !__DICT_H__ */