injector/styleinjector.cpp

   1 /*
   2   styleinjector.cpp
   3
   4   This file is part of GammaRay, the Qt application inspection and
   5   manipulation tool.
   6
   7   Copyright (C) 2010-2011 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com
   8   Author: Volker Krause <volker.krause@kdab.com>
   9
  10   This program is free software; you can redistribute it and/or modify
  11   it under the terms of the GNU General Public License as published by
  12   the Free Software Foundation, either version 2 of the License, or
  13   (at your option) any later version.
  14
  15   This program is distributed in the hope that it will be useful,
  16   but WITHOUT ANY WARRANTY; without even the implied warranty of
  17   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18   GNU General Public License for more details.
  19
  20   You should have received a copy of the GNU General Public License
  21   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  22 */
  23
  24 #include <config-gammaray.h>
  25
  26 #include "styleinjector.h"
  27 #include "interactiveprocess.h"
  28
  29 #include <QFileInfo>
  30 #include <QProcess>
  31 #include <cstdlib>
  32
  33 using namespace GammaRay;
  34
  35 StyleInjector::StyleInjector() :
  36   mExitCode(-1),
  37   mProcessError(QProcess::UnknownError),
  38   mExitStatus(QProcess::NormalExit)
  39 {
  40 }
  41
  42 bool StyleInjector::launch(const QStringList &programAndArgs,
  43                           const QString &probeDll, const QString &probeFunc)
  44 {
  45   QProcessEnvironment env = QProcessEnvironment::systemEnvironment();
  46   env.insert("GAMMARAY_STYLEINJECTOR_PROBEDLL", probeDll);
  47   env.insert("GAMMARAY_STYLEINJECTOR_PROBEFUNC", probeFunc);
  48
  49   QString qtPluginPath = env.value("QT_PLUGIN_PATH");
  50   if (!qtPluginPath.isEmpty()) {
  51     qtPluginPath.append(":");
  52   }
  53   qtPluginPath.append(GAMMARAY_LIB_INSTALL_DIR "/qt4/plugins");
  54   env.insert("QT_PLUGIN_PATH", qtPluginPath);
  55
  56   InteractiveProcess proc;
  57   proc.setProcessEnvironment(env);
  58   proc.setProcessChannelMode(QProcess::ForwardedChannels);
  59
  60   QStringList args = programAndArgs;
  61
  62   if (env.value("GAMMARAY_GDB").toInt()) {
  63     QStringList newArgs;
  64     newArgs << "gdb" << "--eval-command" << "run" << "--args";
  65     newArgs += args;
  66     args = newArgs;
  67   } else if (env.value("GAMMARAY_MEMCHECK").toInt()) {
  68     QStringList newArgs;
  69     newArgs << "valgrind" << "--tool=memcheck" << "--track-origins=yes" << "--num-callers=25";
  70     newArgs += args;
  71     args = newArgs;
  72   } else if (env.value("GAMMARAY_HELGRIND").toInt()) {
  73     QStringList newArgs;
  74     newArgs << "valgrind" << "--tool=helgrind";
  75     newArgs += args;
  76     args = newArgs;
  77   }
  78
  79   const QString program = args.takeFirst();
  80   args << QLatin1String("-style") << QLatin1String("gammaray-injector");
  81   proc.start(program, args);
  82   proc.waitForFinished(-1);
  83
  84   mExitCode = proc.exitCode();
  85   mProcessError = proc.error();
  86   mExitStatus = proc.exitStatus();
  87   mErrorString = proc.errorString();
  88
  89   return mExitCode == EXIT_SUCCESS && mExitStatus == QProcess::NormalExit;
  90 }
  91
  92 bool StyleInjector::selfTest()
  93 {
  94   // TODO: be a bit more clever in finding the plugin location (also when actually using it above)
  95 #ifndef Q_OS_WIN
  96   const QString stylePath =
  97     QLatin1String(GAMMARAY_LIB_INSTALL_DIR "/qt4/plugins/styles/gammaray_injector_style.so");
  98 #else
  99   const QString stylePath =
 100     QLatin1String(GAMMARAY_LIB_INSTALL_DIR "/qt4/plugins/styles/gammaray_injector_style.dll");
 101 #endif
 102
 103   QFileInfo fi(stylePath);
 104   if (!fi.exists() || !fi.isFile() || !fi.isReadable()) {
 105     mErrorString =
 106       QObject::tr("Injector style plugin does not exists or is not readable at %1.").arg(stylePath);
 107     return false;
 108   }
 109
 110   return true;
 111 }
 112
 113 int StyleInjector::exitCode()
 114 {
 115   return mExitCode;
 116 }
 117
 118 QProcess::ProcessError StyleInjector::processError()
 119 {
 120   return mProcessError;
 121 }
 122
 123 QProcess::ExitStatus StyleInjector::exitStatus()
 124 {
 125   return mExitStatus;
 126 }
 127
 128 QString StyleInjector::errorString()
 129 {
 130   return mErrorString;
 131 }