qtversionmanager.cpp

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** This file is part of Qt Creator
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** Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
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** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
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#include "qtversionmanager.h"

#include "qt4projectmanagerconstants.h"
#include "profilereader.h"

#include <projectexplorer/debugginghelper.h>
#include <projectexplorer/projectexplorer.h>
#include <projectexplorer/cesdkhandler.h>
#include <coreplugin/coreconstants.h>
#include <coreplugin/icore.h>
#include <coreplugin/modemanager.h>
#include <coreplugin/welcomemode.h>
#include <extensionsystem/pluginmanager.h>
#include <help/helpplugin.h>
#include <utils/qtcassert.h>


#include <QtCore/QProcess>
#include <QtCore/QSettings>
#include <QtCore/QTime>
#include <QtGui/QApplication>
#include <QtGui/QDesktopServices>

#ifdef Q_OS_WIN32
#include <windows.h>
#endif

using namespace Qt4ProjectManager;
using namespace Qt4ProjectManager::Internal;

using ProjectExplorer::DebuggingHelperLibrary;

static const char *QtVersionsSectionName = "QtVersions";
static const char *defaultQtVersionKey = "DefaultQtVersion";
static const char *newQtVersionsKey = "NewQtVersions";
static const char *PATH_AUTODETECTION_SOURCE = "PATH";

QtVersionManager *QtVersionManager::m_self = 0;

QtVersionManager::QtVersionManager()
    : m_emptyVersion(new QtVersion)
{
    m_self = this;
    QSettings *s = Core::ICore::instance()->settings();
    m_defaultVersion = s->value(defaultQtVersionKey, 0).toInt();

    m_idcount = 1;
    int size = s->beginReadArray(QtVersionsSectionName);
    for (int i = 0; i < size; ++i) {
        s->setArrayIndex(i);
        // Find the right id
        // Either something saved or something generated
        // Note: This code assumes that either all ids are read from the settings
        // or generated on the fly.
        int id = s->value("Id", -1).toInt();
        if (id == -1)
            id = getUniqueId();
        else if (id > m_idcount)
            m_idcount = id;
        bool isAutodetected;
        QString autodetectionSource;
        if (s->contains("isAutodetected")) {
            isAutodetected = s->value("isAutodetected", false).toBool();
            autodetectionSource = s->value("autodetectionSource", QString()).toString();
        } else {// compatibility
            isAutodetected = s->value("IsSystemVersion", false).toBool();
            if (isAutodetected)
                autodetectionSource = QLatin1String(PATH_AUTODETECTION_SOURCE);
        }
        QtVersion *version = new QtVersion(s->value("Name").toString(),
                                           s->value("Path").toString(),
                                           id,
                                           isAutodetected,
                                           autodetectionSource);
        version->setMingwDirectory(s->value("MingwDirectory").toString());
        version->setMsvcVersion(s->value("msvcVersion").toString());
        m_versions.append(version);
    }
    s->endArray();
    updateUniqueIdToIndexMap();

    ++m_idcount;
    addNewVersionsFromInstaller();
    updateSystemVersion();

    writeVersionsIntoSettings();

    if (Core::Internal::WelcomeMode *welcomeMode = qobject_cast<Core::Internal::WelcomeMode*>
        (Core::ICore::instance()->modeManager()->mode(Core::Constants::MODE_WELCOME))) {
        connect(this, SIGNAL(updatedExamples(QString, QString)),
                welcomeMode, SIGNAL(updatedExamples(QString, QString)));
    }
    updateDocumentation();
    updateExamples();
}

QtVersionManager::~QtVersionManager()
{
    qDeleteAll(m_versions);
    m_versions.clear();
    delete m_emptyVersion;
    m_emptyVersion = 0;
}

QtVersionManager *QtVersionManager::instance()
{
    return m_self;
}

void QtVersionManager::addVersion(QtVersion *version)
{
    m_versions.append(version);
    emit qtVersionsChanged();
    writeVersionsIntoSettings();
}

void QtVersionManager::updateDocumentation()
{
    Help::HelpManager *helpManager
        = ExtensionSystem::PluginManager::instance()->getObject<Help::HelpManager>();
    Q_ASSERT(helpManager);
    QStringList fileEndings = QStringList() << "/qch/qt.qch" << "/qch/qmake.qch" << "/qch/designer.qch";
    QStringList files;
    foreach (QtVersion *version, m_versions) {
        QString docPath = version->documentationPath();
        foreach (const QString &fileEnding, fileEndings)
            files << docPath+fileEnding;
    }
    helpManager->registerDocumentation(files);
}

void QtVersionManager::updateExamples()
{
    QList<QtVersion *> versions;
    versions.append(currentQtVersion());
    versions.append(m_versions);

    QString examplesPath;
    QString docPath;
    QString demosPath;
    QtVersion *version = 0;
    // try to find a version which has both, demos and examples, starting with default Qt
    foreach (version, versions) {
        if (version->hasExamples())
            examplesPath = version->examplesPath();
        if (version->hasDemos())
            demosPath = version->demosPath();
        if (!examplesPath.isEmpty() && !demosPath.isEmpty()) {
            emit updatedExamples(examplesPath, demosPath);
            return;
        }
    }
}

int QtVersionManager::getUniqueId()
{
    return m_idcount++;
}

void QtVersionManager::updateUniqueIdToIndexMap()
{
    m_uniqueIdToIndex.clear();
    for (int i = 0; i < m_versions.size(); ++i)
        m_uniqueIdToIndex.insert(m_versions.at(i)->uniqueId(), i);
}

void QtVersionManager::writeVersionsIntoSettings()
{
    QSettings *s = Core::ICore::instance()->settings();
    s->setValue(defaultQtVersionKey, m_defaultVersion);
    s->beginWriteArray(QtVersionsSectionName);