proxytoolfactory.cpp

   1 /*
   2   proxytoolfactory.cpp
   3
   4   This file is part of GammaRay, the Qt application inspection and
   5   manipulation tool.
   6
   7   Copyright (C) 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 "proxytoolfactory.h"
  25
  26 #include <qpluginloader.h>
  27 #include <qsettings.h>
  28 #include <qfileinfo.h>
  29 #include <qdir.h>
  30 #include <QLabel>
  31
  32 #include <iostream>
  33
  34 using namespace GammaRay;
  35
  36 ProxyToolFactory::ProxyToolFactory(const QString &path, QObject *parent)
  37   : QObject(parent), m_factory(0)
  38 {
  39   const QFileInfo pluginInfo(path);
  40   m_id = pluginInfo.baseName();
  41
  42   QSettings desktopFile(path, QSettings::IniFormat);
  43   desktopFile.beginGroup(QLatin1String("Desktop Entry"));
  44   m_name = desktopFile.value(QLatin1String("Name")).toString();
  45   m_supportedTypes =
  46     desktopFile.value(
  47       QLatin1String("X-GammaRay-Types")).toString().split(QLatin1Char(';'),
  48                                                           QString::SkipEmptyParts);
  49   m_pluginPath =
  50     pluginInfo.dir().absoluteFilePath(desktopFile.value(QLatin1String("Exec")).toString());
  51
  52   const QString dllBaseName = desktopFile.value(QLatin1String("Exec")).toString();
  53   if (dllBaseName.isEmpty()) {
  54     return;
  55   }
  56
  57   foreach (const QString &entry,
  58            pluginInfo.dir().entryList(QStringList(dllBaseName + QLatin1Char('*')), QDir::Files)) {
  59     const QString path = pluginInfo.dir().absoluteFilePath(entry);
  60     if (QLibrary::isLibrary(path)) {
  61       m_pluginPath = path;
  62       break;
  63     }
  64   }
  65 }
  66
  67 bool ProxyToolFactory::isValid() const
  68 {
  69   return
  70     !m_id.isEmpty() &&
  71     !m_name.isEmpty() &&
  72     !m_pluginPath.isEmpty() &&
  73     !m_supportedTypes.isEmpty();
  74 }
  75
  76 QString ProxyToolFactory::id() const
  77 {
  78   return m_id;
  79 }
  80
  81 QString ProxyToolFactory::name() const
  82 {
  83   return m_name;
  84 }
  85
  86 QStringList ProxyToolFactory::supportedTypes() const
  87 {
  88   return m_supportedTypes;
  89 }
  90
  91 void ProxyToolFactory::init(ProbeInterface *probe)
  92 {
  93   QPluginLoader loader(m_pluginPath, this);
  94   m_factory = qobject_cast<ToolFactory*>(loader.instance());
  95   if (!m_factory) {
  96     std::cerr << "error loading plugin " << qPrintable(m_pluginPath)
  97               << ": " << qPrintable(loader.errorString()) << std::endl;
  98     return;
  99   }
 100   Q_ASSERT(m_factory);
 101   m_factory->init(probe);
 102 }
 103
 104 QWidget *ProxyToolFactory::createWidget(ProbeInterface *probe, QWidget *parentWidget)
 105 {
 106   if (!m_factory) {
 107     return new QLabel(tr("Plugin '%1' could not be loaded.").arg(m_pluginPath), parentWidget);
 108   }
 109   Q_ASSERT(m_factory);
 110   return m_factory->createWidget(probe, parentWidget);
 111 }
 112
 113 #include "proxytoolfactory.moc"