KDECore

kglobal.cpp

00001 /* This file is part of the KDE libraries
00002    Copyright (C) 1999 Sirtaj Singh Kanq <taj@kde.org>
00003    Copyright (C) 2007 Matthias Kretz <kretz@kde.org>
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 version 2 as published by the Free Software Foundation.
00008 
00009    This library is distributed in the hope that it will be useful,
00010    but WITHOUT ANY WARRANTY; without even the implied warranty of
00011    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012    Library General Public License for more details.
00013 
00014    You should have received a copy of the GNU Library General Public License
00015    along with this library; see the file COPYING.LIB.  If not, write to
00016    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00017    Boston, MA 02110-1301, USA.
00018 */
00019 
00020 /*
00021  * kglobal.cpp -- Implementation of namespace KGlobal.
00022  * Author:  Sirtaj Singh Kang
00023  * Generated:   Sat May  1 02:08:43 EST 1999
00024  */
00025 
00026 #undef KDE3_SUPPORT
00027 
00028 #include "kglobal.h"
00029 #include "kglobal_p.h"
00030 
00031 #include <QtCore/QList>
00032 #include <QtCore/QSet>
00033 
00034 #include <kaboutdata.h>
00035 #include <kconfig.h>
00036 #include <klocale.h>
00037 #include <kcharsets.h>
00038 #include <kstandarddirs.h>
00039 #include <kcomponentdata.h>
00040 #include <QtCore/QCoreApplication>
00041 #include <QtCore/QTextCodec>
00042 #include "kcmdlineargs.h"
00043 
00044 #ifndef NDEBUG
00045 #define MYASSERT(x) if (!x) \
00046    qFatal("Fatal error: you need to have a KComponentData object before\n" \
00047          "you do anything that requires it! Examples of this are config\n" \
00048          "objects, standard directories or translations.");
00049 #else
00050 #define MYASSERT(x) /* nope */
00051 #endif
00052 
00053 // ~KConfig needs qrand(). qrand() depends on a Q_GLOBAL_STATIC. With this Q_CONSTRUCTOR_FUNCTION we
00054 // try to make qrand() live longer than any KConfig object.
00055 Q_CONSTRUCTOR_FUNCTION(qrand)
00056 
00057 typedef QSet<QString> KStringDict;
00058 
00059 class KGlobalPrivate
00060 {
00061     public:
00062         inline KGlobalPrivate()
00063             : stringDict(0),
00064             locale(0),
00065             charsets(0)
00066         {
00067         }
00068 
00069         inline ~KGlobalPrivate()
00070         {
00071             delete locale;
00072             locale = 0;
00073             delete charsets;
00074             charsets = 0;
00075             delete stringDict;
00076             stringDict = 0;
00077         }
00078 
00079         KComponentData activeComponent;
00080         KComponentData mainComponent; // holds a refcount
00081         KStringDict *stringDict;
00082         KLocale *locale;
00083         KCharsets *charsets;
00084 };
00085 
00086 K_GLOBAL_STATIC(KGlobalPrivate, globalData)
00087 
00088 #define PRIVATE_DATA KGlobalPrivate *d = globalData
00089 
00090 KStandardDirs *KGlobal::dirs()
00091 {
00092     PRIVATE_DATA;
00093     MYASSERT(d->mainComponent.isValid());
00094     return d->mainComponent.dirs();
00095 }
00096 
00097 KSharedConfig::Ptr KGlobal::config()
00098 {
00099     PRIVATE_DATA;
00100     MYASSERT(d->mainComponent.isValid());
00101     return d->mainComponent.config();
00102 }
00103 
00104 const KComponentData &KGlobal::mainComponent()
00105 {
00106     PRIVATE_DATA;
00107     MYASSERT(d->mainComponent.isValid());
00108     return d->mainComponent;
00109 }
00110 
00111 bool KGlobal::hasMainComponent()
00112 {
00113     if (globalData.isDestroyed()) {
00114         return false;
00115     }
00116     PRIVATE_DATA;
00117     return d->mainComponent.isValid();
00118 }
00119 
00120 KLocale *KGlobal::locale()
00121 {
00122     PRIVATE_DATA;
00123     if (d->locale == 0) {
00124         if (!d->mainComponent.isValid()) {
00125             return 0;
00126         }
00127 
00128         d->locale = new KLocale(d->mainComponent.catalogName());
00129         QTextCodec::setCodecForLocale(d->locale->codecForEncoding());
00130         d->mainComponent.aboutData()->translateInternalProgramName();
00131     }
00132     return d->locale;
00133 }
00134 
00135 bool KGlobal::hasLocale()
00136 {
00137     if (globalData.isDestroyed()) {
00138         return false;
00139     }
00140     PRIVATE_DATA;
00141     return (d->locale != 0);
00142 }
00143 
00144 KCharsets *KGlobal::charsets()
00145 {
00146     PRIVATE_DATA;
00147     if (d->charsets == 0) {
00148         d->charsets = new KCharsets;
00149     }
00150 
00151     return d->charsets;
00152 }
00153 
00154 KComponentData KGlobal::activeComponent()
00155 {
00156     PRIVATE_DATA;
00157     MYASSERT(d->activeComponent.isValid());
00158     return d->activeComponent;
00159 }
00160 
00161 void KGlobal::setActiveComponent(const KComponentData &c)
00162 {
00163     PRIVATE_DATA;
00164     d->activeComponent = c;
00165     if (c.isValid() && d->locale) {
00166         d->locale->setActiveCatalog(c.catalogName());
00167     }
00168 }
00169 
00170 void KGlobal::newComponentData(const KComponentData &c)
00171 {
00172     PRIVATE_DATA;
00173     if (d->mainComponent.isValid()) {
00174         return;
00175     }
00176     d->mainComponent = c;
00177     KGlobal::setActiveComponent(c);
00178 }
00179 
00180 void KGlobal::setLocale(KLocale *locale, CopyCatalogs copy)
00181 {
00182     PRIVATE_DATA;
00183     if (copy == DoCopyCatalogs && d->locale)
00184         d->locale->copyCatalogsTo(locale);
00185     delete d->locale;
00186     d->locale = locale;
00187 }
00188 
00195 const QString &KGlobal::staticQString(const char *str)
00196 {
00197     return staticQString(QLatin1String(str));
00198 }
00199 
00206 const QString &KGlobal::staticQString(const QString &str)
00207 {
00208     PRIVATE_DATA;
00209     if (!d->stringDict) {
00210         d->stringDict = new KStringDict;
00211     }
00212 
00213    return *d->stringDict->insert(str);
00214 }
00215 
00216 QString KGlobal::caption()
00217 {
00218     PRIVATE_DATA;
00219     // Caption set from command line ?
00220     KCmdLineArgs *args = KCmdLineArgs::parsedArgs("kde");
00221     if (args && args->isSet("caption")) {
00222         return args->getOption("caption");
00223     } else {
00224         // We have some about data ?
00225         if (d->mainComponent.aboutData()) {
00226             return d->mainComponent.aboutData()->programName();
00227         } else {
00228             // Last resort : application name
00229             return QCoreApplication::instance()->applicationName();
00230         }
00231     }
00232 }
00233 
00240 static int s_refCount = 1;
00241 
00242 void KGlobal::ref()
00243 {
00244     ++s_refCount;
00245     //kDebug() << "KGlobal::ref() : refCount = " << s_refCount;
00246 }
00247 
00248 void KGlobal::deref()
00249 {
00250     --s_refCount;
00251     //kDebug() << "KGlobal::deref() : refCount = " << s_refCount;
00252     if (s_refCount <= 0) {
00253         QCoreApplication::instance()->quit();
00254     }
00255 }
00256 
00257 #undef PRIVATE_DATA
KDECore

kglobal.cpp

KDECore

kdelibs
