kdecore Library API Documentation

KConfigSkeleton Class Reference

Class for handling preferences settings for an application. More...

#include <kconfigskeleton.h>

Collaboration diagram for KConfigSkeleton:

Collaboration graph
[legend]
List of all members.

Public Member Functions

 KConfigSkeleton (const QString &configname=QString::null)
 KConfigSkeleton (KSharedConfig::Ptr config)
virtual ~KConfigSkeleton ()
void setDefaults ()
void readConfig ()
void writeConfig ()
void setCurrentGroup (const QString &group)
QString currentGroup ()
void addItem (KConfigSkeletonItem *, const QString &name=QString::null)
ItemStringaddItemString (const QString &name, QString &reference, const QString &defaultValue=QString::fromLatin1(""), const QString &key=QString::null)
ItemPasswordaddItemPassword (const QString &name, QString &reference, const QString &defaultValue=QString::fromLatin1(""), const QString &key=QString::null)
ItemPathaddItemPath (const QString &name, QString &reference, const QString &defaultValue=QString::fromLatin1(""), const QString &key=QString::null)
ItemPropertyaddItemProperty (const QString &name, QVariant &reference, const QVariant &defaultValue=QVariant(), const QString &key=QString::null)
ItemBooladdItemBool (const QString &name, bool &reference, bool defaultValue=false, const QString &key=QString::null)
ItemIntaddItemInt (const QString &name, int &reference, int defaultValue=0, const QString &key=QString::null)
ItemUIntaddItemUInt (const QString &name, unsigned int &reference, unsigned int defaultValue=0, const QString &key=QString::null)
ItemLongaddItemLong (const QString &name, long &reference, long defaultValue=0, const QString &key=QString::null)
ItemULongaddItemULong (const QString &name, unsigned long &reference, unsigned long defaultValue=0, const QString &key=QString::null)
ItemInt64addItemInt64 (const QString &name, Q_INT64 &reference, Q_INT64 defaultValue=0, const QString &key=QString::null)
ItemUInt64addItemUInt64 (const QString &name, Q_UINT64 &reference, Q_UINT64 defaultValue=0, const QString &key=QString::null)
ItemDoubleaddItemDouble (const QString &name, double &reference, double defaultValue=0.0, const QString &key=QString::null)
ItemColoraddItemColor (const QString &name, QColor &reference, const QColor &defaultValue=QColor(128, 128, 128), const QString &key=QString::null)
ItemFontaddItemFont (const QString &name, QFont &reference, const QFont &defaultValue=KGlobalSettings::generalFont(), const QString &key=QString::null)
ItemRectaddItemRect (const QString &name, QRect &reference, const QRect &defaultValue=QRect(), const QString &key=QString::null)
ItemPointaddItemPoint (const QString &name, QPoint &reference, const QPoint &defaultValue=QPoint(), const QString &key=QString::null)
ItemSizeaddItemSize (const QString &name, QSize &reference, const QSize &defaultValue=QSize(), const QString &key=QString::null)
ItemDateTimeaddItemDateTime (const QString &name, QDateTime &reference, const QDateTime &defaultValue=QDateTime(), const QString &key=QString::null)
ItemStringListaddItemStringList (const QString &name, QStringList &reference, const QStringList &defaultValue=QStringList(), const QString &key=QString::null)
ItemIntListaddItemIntList (const QString &name, QValueList< int > &reference, const QValueList< int > &defaultValue=QValueList< int >(), const QString &key=QString::null)
KConfigconfig () const
KConfigSkeletonItem::List items () const
bool isImmutable (const QString &name)
KConfigSkeletonItemfindItem (const QString &name)
bool useDefaults (bool b)

Protected Member Functions

virtual void usrUseDefaults (bool)
virtual void usrSetDefaults ()
virtual void usrReadConfig ()
virtual void usrWriteConfig ()

Classes

class  ItemBool
 Class for handling a bool preferences item. More...
class  ItemColor
 Class for handling a color preferences item. More...
class  ItemDateTime
 Class for handling a QDateTime preferences item. More...
class  ItemDouble
 Class for handling a floating point preference item. More...
class  ItemEnum
 Class for handling enums. More...
class  ItemFont
 Class for handling a font preferences item. More...
class  ItemInt
 Class for handling an integer preferences item. More...
class  ItemInt64
 Class for handling an 64-bit integer preferences item. More...
class  ItemIntList
 Class for handling an integer list preferences item. More...
class  ItemLong
 Class for hanlding a long integer preferences item. More...
class  ItemPassword
 Class for handling a password preferences item. More...
class  ItemPath
 Class for handling a path preferences item. More...
class  ItemPathList
 Class for handling a path list preferences item. More...
class  ItemPoint
 Class for handling a QPoint preferences item. More...
class  ItemProperty
 Class for handling a QVariant preferences item. More...
class  ItemRect
 Class for handling a QRect preferences item. More...
class  ItemSize
 Class for handling a QSize preferences item. More...
class  ItemString
 Class for handling a string preferences item. More...
class  ItemStringList
 Class for handling a string list preferences item. More...
class  ItemUInt
 Class for handling an unsingend integer preferences item. More...
class  ItemUInt64
 Class for handling unsigned 64-bit integer preferences item. More...
class  ItemULong
 Class for handling an unsigned long integer preferences item. More...

Detailed Description

Class for handling preferences settings for an application.

Author:
Cornelius Schumacher
See also:
KConfigSkeletonItem
This class provides an interface to preferences settings. Preferences items can be registered by the addItem() function corresponding to the data type of the seetting. KConfigSkeleton then handles reading and writing of config files and setting of default values.

Normally you will subclass KConfigSkeleton, add data members for the preferences settings and register the members in the constructor of the subclass.

Example:

 class MyPrefs : public KConfigSkeleton
 {
   public:
     MyPrefs()
     {
       setCurrentGroup("MyGroup");
       addItemBool("MySetting1",mMyBool,false);
       addItemColor("MySetting2",mMyColor,QColor(1,2,3));
 
       setCurrentGroup("MyOtherGroup");
       addItemFont("MySetting3",mMyFont,QFont("helvetica",12));
     }
 
     bool mMyBool;
     QColor mMyColor;
     QFont mMyFont;
 }

It might be convenient in many cases to make this subclass of KConfigSkeleton a singleton for global access from all over the application without passing references to the KConfigSkeleton object around.

You can write the data to the configuration file by calling writeConfig() and read the data from the configuration file by calling readConfig().

If you have items, which are not covered by the existing addItem() functions you can add customized code for reading, writing and default setting by implementing the functions usrUseDefaults(), usrReadConfig() and usrWriteConfig().

Internally preferences settings are stored in instances of subclasses of KConfigSkeletonItem. You can also add KConfigSkeletonItem subclasses for your own types and call the generic addItem() to register them.

In many cases you don't have to write the specific KConfigSkeleton subclasses yourself, but you can use The KDE Configuration Compiler to automatically generate the C++ code from an XML description of the configuration options.

Definition at line 365 of file kconfigskeleton.h.


Constructor & Destructor Documentation

KConfigSkeleton::KConfigSkeleton const QString configname = QString::null  ) 
 

Constructor.

Parameters:
configname name of config file. If no name is given, the default config file as returned by kapp()->config() is used.

Definition at line 881 of file kconfigskeleton.cpp.

References endl(), QString::isEmpty(), kdDebug(), KSharedConfig::openConfig(), and KGlobal::sharedConfig().

KConfigSkeleton::KConfigSkeleton KSharedConfig::Ptr  config  ) 
 

Constructor.

Parameters:
config configuration object to use.

Definition at line 896 of file kconfigskeleton.cpp.

References endl(), and kdDebug().

KConfigSkeleton::~KConfigSkeleton  )  [virtual]
 

Destructor.

Definition at line 904 of file kconfigskeleton.cpp.

References QValueList::begin(), QValueList::ConstIterator(), and QValueList::end().


Member Function Documentation

void KConfigSkeleton::setDefaults  ) 
 

Set all registered items to their default values.

Definition at line 939 of file kconfigskeleton.cpp.

References QValueList::begin(), QValueList::ConstIterator(), QValueList::end(), and usrSetDefaults().

void KConfigSkeleton::readConfig  ) 
 

Read preferences from config file.

All registered items are set to the values read from disk.

Definition at line 949 of file kconfigskeleton.cpp.

References QValueList::begin(), QValueList::ConstIterator(), QValueList::end(), endl(), kdDebug(), and usrReadConfig().

Referenced by writeConfig().

void KConfigSkeleton::writeConfig  ) 
 

Write preferences to config file.

The values of all registered items are written to disk.

Definition at line 967 of file kconfigskeleton.cpp.

References QValueList::begin(), QValueList::ConstIterator(), QValueList::end(), endl(), kdDebug(), readConfig(), and usrWriteConfig().

Referenced by KConfigDialogManager::updateSettings().

void KConfigSkeleton::setCurrentGroup const QString group  ) 
 

Set the config file group for subsequent addItem() calls.

It is valid until setCurrentGroup() is called with a new argument. Call this before you add any items. The default value is "No Group".

Definition at line 913 of file kconfigskeleton.cpp.

QString KConfigSkeleton::currentGroup  )  [inline]
 

Returns the current group used for addItem() calls.

Definition at line 837 of file kconfigskeleton.h.

void KConfigSkeleton::addItem KConfigSkeletonItem ,
const QString name = QString::null
 

Register a custom KConfigSkeletonItem with a given name.

If the name parameter is null, take the name from KConfigSkeletonItem::key(). Note that all names must be unique but that multiple entries can have the same key if they reside in different groups.

Definition at line 988 of file kconfigskeleton.cpp.

References QValueList::append(), QDict::insert(), QString::isEmpty(), KConfigSkeletonItem::key(), KConfigSkeletonItem::name(), KConfigSkeletonItem::readDefault(), and KConfigSkeletonItem::setName().

Referenced by addItemBool(), addItemColor(), addItemDateTime(), addItemDouble(), addItemFont(), addItemInt(), addItemInt64(), addItemIntList(), addItemLong(), addItemPassword(), addItemPath(), addItemPoint(), addItemProperty(), addItemRect(), addItemSize(), addItemString(), addItemStringList(), addItemUInt(), addItemUInt64(), and addItemULong().

KConfigSkeleton::ItemString * KConfigSkeleton::addItemString const QString name,
QString reference,
const QString defaultValue = QString::fromLatin1(""),
const QString key = QString::null
 

Register an item of type QString.

Parameters:
name Name used to indentify this setting. Names must be unique.
reference Pointer to the variable, which is set by readConfig() calls and read by writeConfig() calls.
defaultValue Default value, which is used when the config file does not yet contain the key of this item.
key Key used in config file. If key is null, name is used as key.
Returns:
The created item

Definition at line 996 of file kconfigskeleton.cpp.

References addItem(), and QString::isEmpty().

KConfigSkeleton::ItemPassword * KConfigSkeleton::addItemPassword const QString name,
QString reference,
const QString defaultValue = QString::fromLatin1(""),
const QString key = QString::null
 

Register a password item of type QString.

The string value is written encrypted to the config file. Note that the current encryption scheme is very weak.

Parameters:
name Name used to indentify this setting. Names must be unique.
reference Pointer to the variable, which is set by readConfig() calls and read by writeConfig() calls.
defaultValue Default value, which is used when the config file does not yet contain the key of this item.
key Key used in config file. If key is null, name is used as key.
Returns:
The created item

Definition at line 1007 of file kconfigskeleton.cpp.

References addItem(), and QString::isNull().

KConfigSkeleton::ItemPath * KConfigSkeleton::addItemPath const QString name,
QString reference,
const QString defaultValue = QString::fromLatin1(""),
const QString key = QString::null
 

Register a path item of type QString.

The string value is interpreted as a path. This means, dollar expension is activated for this value, so that e.g. $HOME gets expanded.

Parameters:
name Name used to indentify this setting. Names must be unique.
reference Pointer to the variable, which is set by readConfig() calls and read by writeConfig() calls.
defaultValue Default value, which is used when the config file does not yet contain the key of this item.
key Key used in config file. If key is null, name is used as key.
Returns:
The created item

Definition at line 1017 of file kconfigskeleton.cpp.

References addItem(), and QString::isNull().

KConfigSkeleton::ItemProperty * KConfigSkeleton::addItemProperty const QString name,
QVariant reference,
const QVariant defaultValue = QVariant(),
const QString key = QString::null
 

Register a property item of type QVariant.

Note that only the following QVariant types are allowed: String, StringList, Font, Point, Rect, Size, Color, Int, UInt, Bool, Double, DateTime and Date.

Parameters:
name Name used to indentify this setting. Names must be unique.
reference Pointer to the variable, which is set by readConfig() calls and read by writeConfig() calls.
defaultValue Default value, which is used when the config file does not yet contain the key of this item.
key Key used in config file. If key is null, name is used as key.
Returns:
The created item

Definition at line 1027 of file kconfigskeleton.cpp.

References addItem(), and QString::isNull().

KConfigSkeleton::ItemBool * KConfigSkeleton::addItemBool const QString name,
bool &  reference,
bool  defaultValue = false,
const QString key = QString::null
 

Register an item of type bool.

Parameters:
name Name used to indentify this setting. Names must be unique.
reference Pointer to the variable, which is set by readConfig() calls and read by writeConfig() calls.
defaultValue Default value, which is used when the config file does not yet contain the key of this item.
key Key used in config file. If key is null, name is used as key.
Returns:
The created item

Definition at line 1037 of file kconfigskeleton.cpp.

References addItem(), and QString::isNull().

KConfigSkeleton::ItemInt * KConfigSkeleton::addItemInt const QString name,
int &  reference,
int  defaultValue = 0,
const QString key = QString::null
 

Register an item of type int.

Parameters:
name Name used to indentify this setting. Names must be unique.
reference Pointer to the variable, which is set by readConfig() calls and read by writeConfig() calls.
defaultValue Default value, which is used when the config file does not yet contain the key of this item.
key Key used in config file. If key is null, name is used as key.
Returns:
The created item

Definition at line 1047 of file kconfigskeleton.cpp.

References addItem(), and QString::isNull().

KConfigSkeleton::ItemUInt * KConfigSkeleton::addItemUInt const QString name,
unsigned int &  reference,
unsigned int  defaultValue = 0,
const QString key = QString::null
 

Register an item of type unsigned int.

Parameters:
name Name used to indentify this setting. Names must be unique.
reference Pointer to the variable, which is set by readConfig() calls and read by writeConfig() calls.
defaultValue Default value, which is used when the config file does not yet contain the key of this item.
key Key used in config file. If key is null, name is used as key.
Returns:
The created item

Definition at line 1057 of file kconfigskeleton.cpp.

References addItem(), and QString::isNull().

KConfigSkeleton::ItemLong * KConfigSkeleton::addItemLong const QString name,
long &  reference,
long  defaultValue = 0,
const QString key = QString::null
 

Register an item of type long.

Parameters:
name Name used to indentify this setting. Names must be unique.
reference Pointer to the variable, which is set by readConfig() calls and read by writeConfig() calls.
defaultValue Default value, which is used when the config file does not yet contain the key of this item.
key Key used in config file. If key is null, name is used as key.
Returns:
The created item

Definition at line 1087 of file kconfigskeleton.cpp.

References addItem(), and QString::isNull().

KConfigSkeleton::ItemULong * KConfigSkeleton::addItemULong const QString name,
unsigned long &  reference,
unsigned long  defaultValue = 0,
const QString key = QString::null
 

Register an item of type unsigned long.

Parameters:
name Name used to indentify this setting. Names must be unique.
reference Pointer to the variable, which is set by readConfig() calls and read by writeConfig() calls.
defaultValue Default value, which is used when the config file does not yet contain the key of this item.
key Key used in config file. If key is null, name is used as key.
Returns:
The created item

Definition at line 1097 of file kconfigskeleton.cpp.

References addItem(), and QString::isNull().

KConfigSkeleton::ItemInt64 * KConfigSkeleton::addItemInt64 const QString name,
Q_INT64 &  reference,
Q_INT64  defaultValue = 0,
const QString key = QString::null
 

Register an item of type Q_INT64.

Parameters:
name Name used to indentify this setting. Names must be unique.
reference Pointer to the variable, which is set by readConfig() calls and read by writeConfig() calls.
defaultValue Default value, which is used when the config file does not yet contain the key of this item.
key Key used in config file. If key is null, name is used as key.
Returns:
The created item

Definition at line 1067 of file kconfigskeleton.cpp.

References addItem(), and QString::isNull().

KConfigSkeleton::ItemUInt64 * KConfigSkeleton::addItemUInt64 const QString name,
Q_UINT64 &  reference,
Q_UINT64  defaultValue = 0,
const QString key = QString::null
 

Register an item of type Q_UINT64.

Parameters:
name Name used to indentify this setting. Names must be unique.
reference Pointer to the variable, which is set by readConfig() calls and read by writeConfig() calls.
defaultValue Default value, which is used when the config file does not yet contain the key of this item.
key Key used in config file. If key is null, name is used as key.
Returns:
The created item

Definition at line 1077 of file kconfigskeleton.cpp.

References addItem(), and QString::isNull().

KConfigSkeleton::ItemDouble * KConfigSkeleton::addItemDouble const QString name,
double &  reference,
double  defaultValue = 0.0,
const QString key = QString::null
 

Register an item of type double.

Parameters:
name Name used to indentify this setting. Names must be unique.
reference Pointer to the variable, which is set by readConfig() calls and read by writeConfig() calls.
defaultValue Default value, which is used when the config file does not yet contain the key of this item.
key Key used in config file. If key is null, name is used as key.
Returns:
The created item

Definition at line 1107 of file kconfigskeleton.cpp.

References addItem(), and QString::isNull().

KConfigSkeleton::ItemColor * KConfigSkeleton::addItemColor const QString name,
QColor reference,
const QColor defaultValue = QColor(128, 128, 128),
const QString key = QString::null
 

Register an item of type QColor.

Parameters:
name Name used to indentify this setting. Names must be unique.
reference Pointer to the variable, which is set by readConfig() calls and read by writeConfig() calls.
defaultValue Default value, which is used when the config file does not yet contain the key of this item.
key Key used in config file. If key is null, name is used as key.
Returns:
The created item

Definition at line 1117 of file kconfigskeleton.cpp.

References addItem(), and QString::isNull().

KConfigSkeleton::ItemFont * KConfigSkeleton::addItemFont const QString name,
QFont reference,
const QFont defaultValue = KGlobalSettings::generalFont(),
const QString key = QString::null
 

Register an item of type QFont.

Parameters:
name Name used to indentify this setting. Names must be unique.
reference Pointer to the variable, which is set by readConfig() calls and read by writeConfig() calls.
defaultValue Default value, which is used when the config file does not yet contain the key of this item.
key Key used in config file. If key is null, name is used as key.
Returns:
The created item

Definition at line 1127 of file kconfigskeleton.cpp.

References addItem(), and QString::isNull().

KConfigSkeleton::ItemRect * KConfigSkeleton::addItemRect const QString name,
QRect reference,
const QRect defaultValue = QRect(),
const QString key = QString::null
 

Register an item of type QRect.

Parameters:
name Name used to indentify this setting. Names must be unique.
reference Pointer to the variable, which is set by readConfig() calls and read by writeConfig() calls.
defaultValue Default value, which is used when the config file does not yet contain the key of this item.
key Key used in config file. If key is null, name is used as key.
Returns:
The created item

Definition at line 1137 of file kconfigskeleton.cpp.

References addItem(), and QString::isNull().

KConfigSkeleton::ItemPoint * KConfigSkeleton::addItemPoint const QString name,
QPoint reference,
const QPoint defaultValue = QPoint(),
const QString key = QString::null
 

Register an item of type QPoint.

Parameters:
name Name used to indentify this setting. Names must be unique.
reference Pointer to the variable, which is set by readConfig() calls and read by writeConfig() calls.
defaultValue Default value, which is used when the config file does not yet contain the key of this item.
key Key used in config file. If key is null, name is used as key.
Returns:
The created item

Definition at line 1147 of file kconfigskeleton.cpp.

References addItem(), and QString::isNull().

KConfigSkeleton::ItemSize * KConfigSkeleton::addItemSize const QString name,
QSize reference,
const QSize defaultValue = QSize(),
const QString key = QString::null
 

Register an item of type QSize.

Parameters:
name Name used to indentify this setting. Names must be unique.
reference Pointer to the variable, which is set by readConfig() calls and read by writeConfig() calls.
defaultValue Default value, which is used when the config file does not yet contain the key of this item.
key Key used in config file. If key is null, name is used as key.
Returns:
The created item

Definition at line 1157 of file kconfigskeleton.cpp.

References addItem(), and QString::isNull().

KConfigSkeleton::ItemDateTime * KConfigSkeleton::addItemDateTime const QString name,
QDateTime reference,
const QDateTime defaultValue = QDateTime(),
const QString key = QString::null
 

Register an item of type QDateTime.

Parameters:
name Name used to indentify this setting. Names must be unique.
reference Pointer to the variable, which is set by readConfig() calls and read by writeConfig() calls.
defaultValue Default value, which is used when the config file does not yet contain the key of this item.
key Key used in config file. If key is null, name is used as key.
Returns:
The created item

Definition at line 1167 of file kconfigskeleton.cpp.

References addItem(), and QString::isNull().

KConfigSkeleton::ItemStringList * KConfigSkeleton::addItemStringList const QString name,
QStringList reference,
const QStringList defaultValue = QStringList(),
const QString key = QString::null
 

Register an item of type QStringList.

Parameters:
name Name used to indentify this setting. Names must be unique.
reference Pointer to the variable, which is set by readConfig() calls and read by writeConfig() calls.
defaultValue Default value, which is used when the config file does not yet contain the key of this item.
key Key used in config file. If key is null, name is used as key.
Returns:
The created item

Definition at line 1177 of file kconfigskeleton.cpp.

References addItem(), and QString::isNull().

KConfigSkeleton::ItemIntList * KConfigSkeleton::addItemIntList const QString name,
QValueList< int > &  reference,
const QValueList< int > &  defaultValue = QValueList< int >(),
const QString key = QString::null
 

Register an item of type QValueList<int>.

Parameters:
name Name used to indentify this setting. Names must be unique.
reference Pointer to the variable, which is set by readConfig() calls and read by writeConfig() calls.
defaultValue Default value, which is used when the config file does not yet contain the key of this item.
key Key used in config file. If key is null, name is used as key.
Returns:
The created item

Definition at line 1187 of file kconfigskeleton.cpp.

References addItem(), and QString::isNull().

KConfig * KConfigSkeleton::config  )  const
 

Return the KConfig object used for reading and writing the settings.

Definition at line 918 of file kconfigskeleton.cpp.

KConfigSkeletonItem::List KConfigSkeleton::items  )  const [inline]
 

Return list of items managed by this KConfigSkeleton object.

Definition at line 1164 of file kconfigskeleton.h.

bool KConfigSkeleton::isImmutable const QString name  ) 
 

Return whether a certain item is immutable.

Definition at line 1197 of file kconfigskeleton.cpp.

References findItem(), and KConfigSkeletonItem::isImmutable().

KConfigSkeletonItem * KConfigSkeleton::findItem const QString name  ) 
 

Lookup item by name.

Definition at line 1203 of file kconfigskeleton.cpp.

References QDict::find().

Referenced by KConfigDialogManager::hasChanged(), isImmutable(), KConfigDialogManager::parseChildren(), KConfigDialogManager::updateSettings(), and KConfigDialogManager::updateWidgets().

bool KConfigSkeleton::useDefaults bool  b  ) 
 

Indicate whether this object should reflect the actual values or the default values.

Parameters:
b If true this object reflects the default values.
Returns:
The state prior to this call

Definition at line 923 of file kconfigskeleton.cpp.

References QValueList::begin(), QValueList::ConstIterator(), QValueList::end(), and usrUseDefaults().

Referenced by KConfigDialogManager::isDefault(), and KConfigDialogManager::updateWidgetsDefault().

virtual void KConfigSkeleton::usrUseDefaults bool   )  [inline, protected, virtual]
 

Implemented by subclasses that use special defaults.

It should replace the default values with the actual values and vice versa.

Definition at line 1193 of file kconfigskeleton.h.

Referenced by useDefaults().

virtual void KConfigSkeleton::usrReadConfig  )  [inline, protected, virtual]
 

Implemented by subclasses that read special config values.

Definition at line 1204 of file kconfigskeleton.h.

Referenced by readConfig().

virtual void KConfigSkeleton::usrWriteConfig  )  [inline, protected, virtual]
 

Implemented by subclasses that write special config values.

Definition at line 1211 of file kconfigskeleton.h.

Referenced by writeConfig().


The documentation for this class was generated from the following files:
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This file is part of the documentation for kdecore Library Version 3.4.2.
Documentation copyright © 1996-2004 the KDE developers.
Generated on Thu Sep 15 10:20:54 2005 by doxygen 1.4.4 written by Dimitri van Heesch, © 1997-2003