src/Startup.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // MuldeR's Utilities for Qt
   3 // Copyright (C) 2004-2015 LoRd_MuldeR <MuldeR2@GMX.de>
   4 //
   5 // This library is free software; you can redistribute it and/or
   6 // modify it under the terms of the GNU Lesser General Public
   7 // License as published by the Free Software Foundation; either
   8 // version 2.1 of the License, or (at your option) any later version.
   9 //
  10 // This library is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13 // Lesser General Public License for more details.
  14 //
  15 // You should have received a copy of the GNU Lesser General Public
  16 // License along with this library; if not, write to the Free Software
  17 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  18 //
  19 // http://www.gnu.org/licenses/lgpl-2.1.txt
  20 //////////////////////////////////////////////////////////////////////////////////
  21
  22 //MUtils
  23 #include <MUtils/Startup.h>
  24 #include <MUtils/OSSupport.h>
  25 #include <MUtils/Terminal.h>
  26 #include <MUtils/ErrorHandler.h>
  27 #include <MUtils/Exception.h>
  28
  29 //Qt
  30 #include <QApplication>
  31 #include <QMutex>
  32 #include <QStringList>
  33 #include <QLibraryInfo>
  34 #include <QTextCodec>
  35 #include <QImageReader>
  36 #include <QFont>
  37 #include <QMessageBox>
  38 #include <QtPlugin>
  39
  40 ///////////////////////////////////////////////////////////////////////////////
  41 // Qt Static Initialization
  42 ///////////////////////////////////////////////////////////////////////////////
  43
  44 #ifdef QT_NODLL
  45
  46 #if QT_VERSION < QT_VERSION_CHECK(5,0,0)
  47 Q_IMPORT_PLUGIN(qico)
  48 Q_IMPORT_PLUGIN(qsvg)
  49 #else
  50 Q_IMPORT_PLUGIN(QWindowsIntegrationPlugin)
  51 Q_IMPORT_PLUGIN(QICOPlugin)
  52 #endif
  53
  54 static void doInitializeResources(void)
  55 {
  56         Q_INIT_RESOURCE(MUtilsData);
  57 }
  58
  59 static void doCleanupResources(void)
  60 {
  61         Q_CLEANUP_RESOURCE(MUtilsData);
  62 }
  63
  64 namespace MUtils
  65 {
  66         namespace Startup
  67         {
  68                 namespace Internal
  69                 {
  70                         class ResourceInitializer
  71                         {
  72                         public:
  73                                 ResourceInitializer(void)
  74                                 {
  75                                         doInitializeResources();
  76                                 }
  77
  78                                 ~ResourceInitializer(void)
  79                                 {
  80                                         doCleanupResources();
  81                                 }
  82                         };
  83
  84                         static ResourceInitializer resourceInitializer;
  85                 }
  86         }
  87 }
  88
  89 #endif //QT_NODLL
  90
  91 ///////////////////////////////////////////////////////////////////////////////
  92 // MESSAGE HANDLER
  93 ///////////////////////////////////////////////////////////////////////////////
  94
  95 static void qt_message_handler(QtMsgType type, const char *msg)
  96 {
  97         if((!msg) || (!(msg[0])))
  98         {
  99                 return;
 100         }
 101
 102         MUtils::Terminal::write(type, msg);
 103
 104         if((type == QtCriticalMsg) || (type == QtFatalMsg))
 105         {
 106                 MUtils::OS::fatal_exit(MUTILS_WCHR(QString::fromUtf8(msg)));
 107         }
 108 }
 109
 110 static bool qt_event_filter(void *message, long *result)
 111 {
 112         return MUtils::OS::handle_os_message(message, result);
 113 }
 114
 115 ///////////////////////////////////////////////////////////////////////////////
 116 // STARTUP FUNCTION
 117 ///////////////////////////////////////////////////////////////////////////////
 118
 119 static int startup_main(int &argc, char **argv, MUtils::Startup::main_function_t *const entry_point, const char* const appName, const bool &debugConsole)
 120 {
 121         qInstallMsgHandler(qt_message_handler);
 122         MUtils::Terminal::setup(argc, argv, appName, MUTILS_DEBUG || debugConsole);
 123         return entry_point(argc, argv);
 124 }
 125
 126 static int startup_helper(int &argc, char **argv, MUtils::Startup::main_function_t *const entry_point, const char* const appName, const bool &debugConsole)
 127 {
 128         int iResult = -1;
 129         try
 130         {
 131                 iResult = startup_main(argc, argv, entry_point, appName, debugConsole);
 132         }
 133         catch(const std::exception &error)
 134         {
 135                 MUTILS_PRINT_ERROR("\nGURU MEDITATION !!!\n\nException error:\n%s\n", error.what());
 136                 MUtils::OS::fatal_exit(L"Unhandeled C++ exception error, application will exit!");
 137         }
 138         catch(...)
 139         {
 140                 MUTILS_PRINT_ERROR("\nGURU MEDITATION !!!\n\nUnknown exception error!\n");
 141                 MUtils::OS::fatal_exit(L"Unhandeled C++ exception error, application will exit!");
 142         }
 143         return iResult;
 144 }
 145
 146 int MUtils::Startup::startup(int &argc, char **argv, main_function_t *const entry_point, const char* const appName, const bool &debugConsole)
 147 {
 148         int iResult = -1;
 149 #if (MUTILS_DEBUG)
 150 #ifdef _MSC_VER
 151         _CrtSetDbgFlag(_CRTDBG_CHECK_ALWAYS_DF || _CrtSetDbgFlag(_CRTDBG_REPORT_FLAG));
 152 #endif //_MSCVER
 153         iResult = startup_main(argc, argv, entry_point, appName, debugConsole);
 154 #else //MUTILS_DEBUG
 155 #ifdef _MSC_VER
 156         __try
 157         {
 158                 MUtils::ErrorHandler::initialize();
 159                 MUtils::OS::check_debugger();
 160                 iResult = startup_helper(argc, argv, entry_point, appName, debugConsole);
 161         }
 162         __except(1)
 163         {
 164                 MUTILS_PRINT_ERROR("\nGURU MEDITATION !!!\n\nUnhandeled structured exception error!\n");
 165                 MUtils::OS::fatal_exit(L"Unhandeled structured exception error, application will exit!");
 166         }
 167 #else //_MSCVER
 168         MUtils::ErrorHandler::initialize();
 169         MUtils::OS::check_debugger();
 170         iResult = startup_helper(argc, argv, entry_point, appName, debugConsole);
 171 #endif //_MSCVER
 172 #endif //MUTILS_DEBUG
 173         return iResult;
 174 }
 175
 176 ///////////////////////////////////////////////////////////////////////////////
 177 // QT INITIALIZATION
 178 ///////////////////////////////////////////////////////////////////////////////
 179
 180 static QMutex g_init_lock;
 181 static const char *const g_imageformats[] = {"bmp", "png", "jpg", "gif", "ico", "xpm", "svg", NULL};
 182
 183 static QString getExecutableName(int &argc, char **argv)
 184 {
 185         if(argc >= 1)
 186         {
 187                 const char *argv0 = argv[0];
 188                 if(const char *const ptr = strrchr(argv0, '/'))
 189                 {
 190                         argv0 = ptr + 1;
 191                 }
 192                 if(const char *const ptr = strrchr(argv0, '\\'))
 193                 {
 194                         argv0 = ptr + 1;
 195                 }
 196                 if(strlen(argv0) > 1)
 197                 {
 198                         QString::fromLatin1(argv0);
 199                 }
 200         }
 201         return QLatin1String("Program.exe");
 202 }
 203
 204 QApplication *MUtils::Startup::create_qt(int &argc, char **argv, const QString &appName)
 205 {
 206         QMutexLocker lock(&g_init_lock);
 207         const OS::ArgumentMap &arguments = MUtils::OS::arguments();
 208
 209         //Don't initialized again, if done already
 210         if(QApplication::instance() != NULL)
 211         {
 212                 qWarning("Qt is already initialized!");
 213                 return NULL;
 214         }
 215
 216         //Extract executable name from argv[] array
 217         const QString executableName = getExecutableName(argc, argv);
 218
 219         //Check Qt version
 220 #ifdef QT_BUILD_KEY
 221         qDebug("Using Qt v%s [%s], %s, %s", qVersion(), QLibraryInfo::buildDate().toString(Qt::ISODate).toLatin1().constData(), (qSharedBuild() ? "DLL" : "Static"), QLibraryInfo::buildKey().toLatin1().constData());
 222         qDebug("Compiled with Qt v%s [%s], %s\n", QT_VERSION_STR, QT_PACKAGEDATE_STR, QT_BUILD_KEY);
 223         if(_stricmp(qVersion(), QT_VERSION_STR))
 224         {
 225                 qFatal("%s", QApplication::tr("Executable '%1' requires Qt v%2, but found Qt v%3.").arg(executableName, QString::fromLatin1(QT_VERSION_STR), QString::fromLatin1(qVersion())).toLatin1().constData());
 226                 return false;
 227         }
 228         if(QLibraryInfo::buildKey().compare(QString::fromLatin1(QT_BUILD_KEY), Qt::CaseInsensitive))
 229         {
 230                 qFatal("%s", QApplication::tr("Executable '%1' was built for Qt '%2', but found Qt '%3'.").arg(executableName, QString::fromLatin1(QT_BUILD_KEY), QLibraryInfo::buildKey()).toLatin1().constData());
 231                 return false;
 232         }
 233 #else
 234         qDebug("Using Qt v%s [%s], %s", qVersion(), QLibraryInfo::buildDate().toString(Qt::ISODate).toLatin1().constData(), (qSharedBuild() ? "DLL" : "Static"));
 235         qDebug("Compiled with Qt v%s [%s]\n", QT_VERSION_STR, QT_PACKAGEDATE_STR);
 236 #endif
 237
 238         //Check the Windows version
 239
 240         const MUtils::OS::Version::os_version_t &osVersion = MUtils::OS::os_version();
 241         if((osVersion.type != MUtils::OS::Version::OS_WINDOWS) || (osVersion < MUtils::OS::Version::WINDOWS_WINXP))
 242         {
 243                 qFatal("%s", QApplication::tr("Executable '%1' requires Windows XP or later.").arg(executableName).toLatin1().constData());
 244         }
 245
 246         //Check whether we are running on a supported Windows version
 247         if(const char *const friendlyName = MUtils::OS::os_friendly_name(osVersion))
 248         {
 249                 qDebug("Running on %s (NT v%u.%u).\n", friendlyName, osVersion.versionMajor, osVersion.versionMinor);
 250         }
 251         else
 252         {
 253                 const QString message = QString().sprintf("Running on an unknown WindowsNT-based system (v%u.%u).", osVersion.versionMajor, osVersion.versionMinor);
 254                 qWarning("%s\n", MUTILS_UTF8(message));
 255                 MUtils::OS::system_message_wrn(L"LameXP", MUTILS_WCHR(message));
 256         }
 257
 258         //Check for compat mode
 259         if(osVersion.overrideFlag && (osVersion <= MUtils::OS::Version::WINDOWS_WN100))
 260         {
 261                 qWarning("Windows compatibility mode detected!");
 262                 if(!arguments.contains("ignore-compat-mode"))
 263                 {
 264                         qFatal("%s", QApplication::tr("Executable '%1' doesn't support Windows compatibility mode.").arg(executableName).toLatin1().constData());
 265                         return NULL;
 266                 }
 267         }
 268
 269         //Check for Wine
 270         if(MUtils::OS::running_on_wine())
 271         {
 272                 qWarning("It appears we are running under Wine, unexpected things might happen!\n");
 273         }
 274
 275         //Set text Codec for locale
 276         QTextCodec::setCodecForLocale(QTextCodec::codecForName("UTF-8"));
 277
 278         //Create Qt application instance
 279         QApplication *application = new QApplication(argc, argv);
 280
 281         //Load plugins from application directory
 282         QCoreApplication::setLibraryPaths(QStringList() << QApplication::applicationDirPath());
 283         qDebug("Library Path:\n%s\n", MUTILS_UTF8(QApplication::libraryPaths().first()));
 284
 285         //Set application properties
 286         application->setApplicationName(appName);
 287         application->setOrganizationName("LoRd_MuldeR");
 288         application->setOrganizationDomain("mulder.at.gg");
 289         application->setEventFilter(qt_event_filter);
 290
 291         //Check for supported image formats
 292         QList<QByteArray> supportedFormats = QImageReader::supportedImageFormats();
 293         for(int i = 0; g_imageformats[i]; i++)
 294         {
 295                 if(!supportedFormats.contains(g_imageformats[i]))
 296                 {
 297                         qFatal("Qt initialization error: QImageIOHandler for '%s' missing!", g_imageformats[i]);
 298                         MUTILS_DELETE(application);
 299                         return NULL;
 300                 }
 301         }
 302
 303         //Setup console icon
 304         MUtils::Terminal::set_icon(QIcon(":/mutils/icons/bug.png"));
 305
 306         //Enable larger/smaller font size
 307         double fontScaleFactor = 1.0;
 308         if(arguments.contains("huge-font" )) fontScaleFactor = 1.500;
 309         if(arguments.contains("big-font"  )) fontScaleFactor = 1.250;
 310         if(arguments.contains("small-font")) fontScaleFactor = 0.875;
 311         if(arguments.contains("tiny-font" )) fontScaleFactor = 0.750;
 312         if(!qFuzzyCompare(fontScaleFactor, 1.0))
 313         {
 314                 qWarning("Application font scale factor set to: %.3f\n", fontScaleFactor);
 315                 QFont appFont = application->font();
 316                 appFont.setPointSizeF(appFont.pointSizeF() * fontScaleFactor);
 317                 application->setFont(appFont);
 318         }
 319
 320         //Check for process elevation
 321         if(MUtils::OS::is_elevated() && (!MUtils::OS::running_on_wine()))
 322         {
 323                 QMessageBox messageBox(QMessageBox::Warning, "LameXP", "<nobr>LameXP was started with 'elevated' rights, altough LameXP does not need these rights.<br>Running an applications with unnecessary rights is a potential security risk!</nobr>", QMessageBox::NoButton, NULL, Qt::Dialog | Qt::MSWindowsFixedSizeDialogHint | Qt::WindowStaysOnTopHint);
 324                 messageBox.addButton("Quit Program (Recommended)", QMessageBox::NoRole);
 325                 messageBox.addButton("Ignore", QMessageBox::NoRole);
 326                 if(messageBox.exec() == 0)
 327                 {
 328                         MUTILS_DELETE(application);
 329                         return NULL;
 330                 }
 331         }
 332
 333         //Qt created successfully
 334         return application;
 335 }
 336
 337 ///////////////////////////////////////////////////////////////////////////////
 338