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/* This file is part of the KDE libraries
Copyright (C) 1999 Sirtaj Singh Kanq <taj@kde.org>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License version 2 as published by the Free Software Foundation.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#ifndef _KGLOBAL_H
#define _KGLOBAL_H
#include "tdelibs_export.h"
#include <kinstance.h> // KDE4: class TDEInstance is enough here
class KCharsets;
class KConfig;
class KSharedConfig;
class KIconLoader;
class TDEHardwareDevices;
class TDEGlobalNetworkManager;
class KLocale;
class KStandardDirs;
class KStaticDeleterBase;
class KStaticDeleterList;
class KStringDict;
class TQString;
/**
* Access to the KDE global objects.
* KGlobal provides you with pointers of many central
* objects that exist only once in the process. It is also
* responsible for managing instances of KStaticDeleterBase.
*
* @see KStaticDeleterBase
* @author Sirtaj Singh Kang (taj@kde.org)
*/
class TDECORE_EXPORT KGlobal
{
public:
/**
* Returns the global instance. There is always at least
* one instance of a component in one application (in most
* cases the application itself).
* @return the global instance
*/
static TDEInstance *instance();
/**
* Returns the application standard dirs object.
* @return the global standard dir object
*/
static KStandardDirs *dirs();
/**
* Returns the general config object.
* @return the global configuration object.
*/
static KConfig *config();
/**
* Returns the general config object.
* @return the global configuration object.
*/
static KSharedConfig *sharedConfig();
/**
* Returns an iconloader object.
* @return the global iconloader object
*/
static KIconLoader *iconLoader();
/**
* Returns a TDEHardwareDevices object.
* @return the global hardware devices object
*/
static TDEHardwareDevices *hardwareDevices();
/**
* Returns a TDEGlobalNetworkManager object.
* @return the global network manager object
*/
static TDEGlobalNetworkManager *networkManager();
/**
* Returns the global locale object.
* @return the global locale object
*/
static KLocale *locale();
/**
* The global charset manager.
* @return the global charset manager
*/
static KCharsets *charsets();
/**
* Creates a static TQString.
*
* To be used inside functions(!) like:
* \code
* static const TQString &myString = KGlobal::staticQString("myText");
* \endcode
*
* !!! Do _NOT_ use: !!!
* \code
* static TQString myString = KGlobal::staticQString("myText");
* \endcode
* This creates a static object (instead of a static reference)
* and as you know static objects are EVIL.
* @param str the string to create
* @return the static string
*/
static const TQString &staticQString(const char *str);
/**
* Creates a static TQString.
*
* To be used inside functions(!) like:
* \code
* static const TQString &myString = KGlobal::staticQString(i18n("My Text"));
* \endcode
*
* !!! Do _NOT_ use: !!!
* \code
* static TQString myString = KGlobal::staticQString(i18n("myText"));
* \endcode
* This creates a static object (instead of a static reference)
* and as you know static objects are EVIL.
* @param str the string to create
* @return the static string
*/
static const TQString &staticQString(const TQString &str);
/**
* Registers a static deleter.
* @param d the static deleter to register
* @see KStaticDeleterBase
* @see KStaticDeleter
*/
static void registerStaticDeleter(KStaticDeleterBase *d);
/**
* Unregisters a static deleter.
* @param d the static deleter to unregister
* @see KStaticDeleterBase
* @see KStaticDeleter
*/
static void unregisterStaticDeleter(KStaticDeleterBase *d);
/**
* Calls KStaticDeleterBase::destructObject() on all
* registered static deleters and unregisters them all.
* @see KStaticDeleterBase
* @see KStaticDeleter
*/
static void deleteStaticDeleters();
//private:
static KStringDict *_stringDict;
static TDEInstance *_instance;
static KLocale *_locale;
static KCharsets *_charsets;
static KStaticDeleterList *_staticDeleters;
/**
* The instance currently active (useful in a multi-instance
* application, such as a KParts application).
* Don't use this - it's mainly for KAboutDialog and KBugReport.
* @internal
*/
static void setActiveInstance(TDEInstance *d);
static TDEInstance *activeInstance() { return _activeInstance; }
static TDEInstance *_activeInstance;
};
/**
* \relates KGlobal
* A typesafe function to find the minimum of the two arguments.
*/
#define KMIN(a,b) kMin(a,b)
/**
* \relates KGlobal
* A typesafe function to find the maximum of the two arguments.
*/
#define KMAX(a,b) kMax(a,b)
/**
* \relates KGlobal
* A typesafe function to determine the absolute value of the argument.
*/
#define KABS(a) kAbs(a)
/**
* \relates KGlobal
* A typesafe function that returns x if it's between low and high values.
* low if x is smaller than then low and high if x is bigger than high.
*/
#define KCLAMP(x,low,high) kClamp(x,low,high)
// XXX KDE4: Make kMin, kMax and kClamp return "T" instead of "const T &"!
template<class T>
inline const T& kMin (const T& a, const T& b) { return a < b ? a : b; }
template<class T>
inline const T& kMax (const T& a, const T& b) { return b < a ? a : b; }
template<class T>
inline T kAbs (const T& a) { return a < 0 ? -a : a; }
template<class T>
inline const T& kClamp( const T& x, const T& low, const T& high )
{
if ( x < low ) return low;
else if ( high < x ) return high;
else return x;
}
/**
* Locale-independent tqstricmp. Use this for comparing ascii keywords
* in a case-insensitive way.
* tqstricmp fails with e.g. the Turkish locale where 'I'.lower() != 'i'
* @since 3.4
*/
int TDECORE_EXPORT kasciistricmp( const char *str1, const char *str2 );
/**
* \mainpage The KDE Core Functionality Library
*
* All KDE programs use this library to provide basic functionality such
* as the configuration system, IPC, internationalization and locale
* support, site-independent access to the filesystem and a large number
* of other (but no less important) things.
*
* All KDE applications should link to the tdecore library. Also, using a
* TDEApplication derived class instead of TQApplication is almost
* mandatory if you expect your application to behave nicely within the
* KDE environment.
*/
#endif // _KGLOBAL_H
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