Some clean-up and simplification for JobObject class.
[MUtilities.git] / src / Startup.cpp
blobfaecafcad2f745c49c54604580bbd395cc4f9783
1 ///////////////////////////////////////////////////////////////////////////////
2 // MuldeR's Utilities for Qt
3 // Copyright (C) 2004-2016 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.
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
19 // http://www.gnu.org/licenses/lgpl-2.1.txt
20 //////////////////////////////////////////////////////////////////////////////////
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/Registry.h>
28 #include <MUtils/Exception.h>
30 //Qt
31 #include <QApplication>
32 #include <QMutex>
33 #include <QStringList>
34 #include <QLibraryInfo>
35 #include <QTextCodec>
36 #include <QImageReader>
37 #include <QFont>
38 #include <QMessageBox>
39 #include <QtPlugin>
41 //CRT
42 #include <string.h>
44 ///////////////////////////////////////////////////////////////////////////////
45 // Qt Static Initialization
46 ///////////////////////////////////////////////////////////////////////////////
48 #ifdef QT_NODLL
50 #if QT_VERSION < QT_VERSION_CHECK(5,0,0)
51 Q_IMPORT_PLUGIN(qico)
52 Q_IMPORT_PLUGIN(qsvg)
53 #else
54 Q_IMPORT_PLUGIN(QWindowsIntegrationPlugin)
55 Q_IMPORT_PLUGIN(QICOPlugin)
56 #endif
58 static void doInitializeResources(void)
60 Q_INIT_RESOURCE(MUtilsData);
63 static void doCleanupResources(void)
65 Q_CLEANUP_RESOURCE(MUtilsData);
68 namespace MUtils
70 namespace Startup
72 namespace Internal
74 class ResourceInitializer
76 public:
77 ResourceInitializer(void)
79 doInitializeResources();
82 ~ResourceInitializer(void)
84 doCleanupResources();
88 static ResourceInitializer resourceInitializer;
93 #endif //QT_NODLL
95 ///////////////////////////////////////////////////////////////////////////////
96 // MESSAGE HANDLER
97 ///////////////////////////////////////////////////////////////////////////////
99 static void qt_message_handler(QtMsgType type, const char *const msg)
101 if((!msg) || (!(msg[0])))
103 return;
106 MUtils::Terminal::write(type, msg);
108 if((type == QtCriticalMsg) || (type == QtFatalMsg))
110 MUtils::OS::fatal_exit(MUTILS_WCHR(QString::fromUtf8(msg)));
114 static bool qt_event_filter(void *message, long *result)
116 return MUtils::OS::handle_os_message(message, result);
119 ///////////////////////////////////////////////////////////////////////////////
120 // STARTUP FUNCTION
121 ///////////////////////////////////////////////////////////////////////////////
123 static int startup_main(int &argc, char **argv, MUtils::Startup::main_function_t *const entry_point, const char* const appName, const bool &debugConsole)
125 qInstallMsgHandler(qt_message_handler);
126 MUtils::Terminal::setup(argc, argv, appName, MUTILS_DEBUG || debugConsole);
127 return entry_point(argc, argv);
130 static int startup_helper(int &argc, char **argv, MUtils::Startup::main_function_t *const entry_point, const char* const appName, const bool &debugConsole)
132 int iResult = -1;
135 iResult = startup_main(argc, argv, entry_point, appName, debugConsole);
137 catch(const std::exception &error)
139 MUTILS_PRINT_ERROR("\nGURU MEDITATION !!!\n\nException error:\n%s\n", error.what());
140 MUtils::OS::fatal_exit(L"Unhandeled C++ exception error, application will exit!");
142 catch(...)
144 MUTILS_PRINT_ERROR("\nGURU MEDITATION !!!\n\nUnknown exception error!\n");
145 MUtils::OS::fatal_exit(L"Unhandeled C++ exception error, application will exit!");
147 return iResult;
150 int MUtils::Startup::startup(int &argc, char **argv, main_function_t *const entry_point, const char* const appName, const bool &debugConsole)
152 int iResult = -1;
153 #if (MUTILS_DEBUG)
154 #ifdef _MSC_VER
155 _CrtSetDbgFlag(_CRTDBG_CHECK_ALWAYS_DF || _CrtSetDbgFlag(_CRTDBG_REPORT_FLAG));
156 #endif //_MSCVER
157 iResult = startup_main(argc, argv, entry_point, appName, debugConsole);
158 #else //MUTILS_DEBUG
159 #ifdef _MSC_VER
160 __try
162 MUtils::ErrorHandler::initialize();
163 MUtils::OS::check_debugger();
164 iResult = startup_helper(argc, argv, entry_point, appName, debugConsole);
166 __except(1)
168 MUTILS_PRINT_ERROR("\nGURU MEDITATION !!!\n\nUnhandeled structured exception error!\n");
169 MUtils::OS::fatal_exit(L"Unhandeled structured exception error, application will exit!");
171 #else //_MSCVER
172 MUtils::ErrorHandler::initialize();
173 MUtils::OS::check_debugger();
174 iResult = startup_helper(argc, argv, entry_point, appName, debugConsole);
175 #endif //_MSCVER
176 #endif //MUTILS_DEBUG
177 return iResult;
180 ///////////////////////////////////////////////////////////////////////////////
181 // QT INITIALIZATION
182 ///////////////////////////////////////////////////////////////////////////////
184 static QMutex g_init_lock;
185 static const char *const g_imageformats[] = {"bmp", "png", "jpg", "gif", "ico", "xpm", "svg", NULL};
187 static QString getExecutableName(int &argc, char **argv)
189 if(argc >= 1)
191 const char *argv0 = argv[0];
192 for (int i = 0; i < 2; i++)
194 static const char SEP[2] = { '/', '\\' };
195 if (const char *const ptr = strrchr(argv0, SEP[i]))
197 argv0 = ptr + 1;
200 if(strlen(argv0) > 1)
202 return QString::fromLatin1(argv0);
205 return QLatin1String("Program.exe");
208 static void qt_registry_cleanup(void)
210 static const wchar_t *const QT_JUNK_KEY = L"Software\\Trolltech\\OrganizationDefaults";
211 MUtils::Registry::reg_key_delete(MUtils::Registry::root_user, MUTILS_QSTR(QT_JUNK_KEY), true, true);
214 QApplication *MUtils::Startup::create_qt(int &argc, char **argv, const QString &appName)
216 QMutexLocker lock(&g_init_lock);
217 const OS::ArgumentMap &arguments = MUtils::OS::arguments();
219 //Don't initialized again, if done already
220 if(QApplication::instance() != NULL)
222 qWarning("Qt is already initialized!");
223 return NULL;
226 //Extract executable name from argv[] array
227 const QString executableName = getExecutableName(argc, argv);
229 //Check Qt version
230 #ifdef QT_BUILD_KEY
231 qDebug("Using Qt v%s [%s], %s, %s", qVersion(), QLibraryInfo::buildDate().toString(Qt::ISODate).toLatin1().constData(), (qSharedBuild() ? "DLL" : "Static"), QLibraryInfo::buildKey().toLatin1().constData());
232 qDebug("Compiled with Qt v%s [%s], %s\n", QT_VERSION_STR, QT_PACKAGEDATE_STR, QT_BUILD_KEY);
233 if(_stricmp(qVersion(), QT_VERSION_STR))
235 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());
236 return false;
238 if(QLibraryInfo::buildKey().compare(QString::fromLatin1(QT_BUILD_KEY), Qt::CaseInsensitive))
240 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());
241 return false;
243 #else
244 qDebug("Using Qt v%s [%s], %s", qVersion(), QLibraryInfo::buildDate().toString(Qt::ISODate).toLatin1().constData(), (qSharedBuild() ? "DLL" : "Static"));
245 qDebug("Compiled with Qt v%s [%s]\n", QT_VERSION_STR, QT_PACKAGEDATE_STR);
246 #endif
248 //Check the Windows version
249 const MUtils::OS::Version::os_version_t &osVersion = MUtils::OS::os_version();
250 if((osVersion.type != MUtils::OS::Version::OS_WINDOWS) || (osVersion < MUtils::OS::Version::WINDOWS_WINXP))
252 qFatal("%s", QApplication::tr("Executable '%1' requires Windows XP or later.").arg(executableName).toLatin1().constData());
255 //Check whether we are running on a supported Windows version
256 if(const char *const friendlyName = MUtils::OS::os_friendly_name(osVersion))
258 qDebug("Running on %s (NT v%u.%u.%u).\n", friendlyName, osVersion.versionMajor, osVersion.versionMinor, osVersion.versionBuild);
260 else
262 const QString message = QString().sprintf("Running on an unknown WindowsNT-based system (v%u.%u.%u).", osVersion.versionMajor, osVersion.versionMinor, osVersion.versionBuild);
263 qWarning("%s\n", MUTILS_UTF8(message));
264 MUtils::OS::system_message_wrn(MUTILS_WCHR(executableName), MUTILS_WCHR(message));
267 //Check for compat mode
268 if(osVersion.overrideFlag && (osVersion <= MUtils::OS::Version::WINDOWS_WN100))
270 qWarning("Windows compatibility mode detected!");
271 if(!arguments.contains("ignore-compat-mode"))
273 qFatal("%s", QApplication::tr("Executable '%1' doesn't support Windows compatibility mode.").arg(executableName).toLatin1().constData());
274 return NULL;
278 //Check for Wine
279 if(MUtils::OS::running_on_wine())
281 qWarning("It appears we are running under Wine, unexpected things might happen!\n");
284 //Set text Codec for locale
285 QTextCodec::setCodecForLocale(QTextCodec::codecForName("UTF-8"));
287 //Create Qt application instance
288 QApplication *application = new QApplication(argc, argv);
290 //Register the Qt clean-up function
291 atexit(qt_registry_cleanup);
293 //Load plugins from application directory
294 QCoreApplication::setLibraryPaths(QStringList() << QApplication::applicationDirPath());
295 qDebug("Library Path:\n%s\n", MUTILS_UTF8(QApplication::libraryPaths().first()));
297 //Set application properties
298 application->setApplicationName(appName);
299 application->setOrganizationName("LoRd_MuldeR");
300 application->setOrganizationDomain("mulder.at.gg");
301 application->setEventFilter(qt_event_filter);
303 //Check for supported image formats
304 QList<QByteArray> supportedFormats = QImageReader::supportedImageFormats();
305 for(int i = 0; g_imageformats[i]; i++)
307 if(!supportedFormats.contains(g_imageformats[i]))
309 qFatal("Qt initialization error: QImageIOHandler for '%s' missing!", g_imageformats[i]);
310 MUTILS_DELETE(application);
311 return NULL;
315 //Setup console icon
316 MUtils::Terminal::set_icon(QIcon(":/mutils/icons/bug.png"));
318 //Enable larger/smaller font size
319 double fontScaleFactor = 1.0;
320 if(arguments.contains("huge-font" )) fontScaleFactor = 1.500;
321 if(arguments.contains("big-font" )) fontScaleFactor = 1.250;
322 if(arguments.contains("small-font")) fontScaleFactor = 0.875;
323 if(arguments.contains("tiny-font" )) fontScaleFactor = 0.750;
324 if(!qFuzzyCompare(fontScaleFactor, 1.0))
326 qWarning("Application font scale factor set to: %.3f\n", fontScaleFactor);
327 QFont appFont = application->font();
328 appFont.setPointSizeF(appFont.pointSizeF() * fontScaleFactor);
329 application->setFont(appFont);
332 //Check for process elevation
333 if(MUtils::OS::is_elevated() && (!MUtils::OS::running_on_wine()))
335 QMessageBox messageBox(QMessageBox::Warning, executableName, "<nobr>This program was started with 'elevated' rights, altough it 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);
336 messageBox.addButton("Quit Program (Recommended)", QMessageBox::NoRole);
337 messageBox.addButton("Ignore", QMessageBox::NoRole);
338 if(messageBox.exec() == 0)
340 MUTILS_DELETE(application);
341 return NULL;
345 //Qt created successfully
346 return application;
349 ///////////////////////////////////////////////////////////////////////////////