1 files changed, 267 insertions, 0 deletions
diff --git a/installerbuilder/libinstaller/progresscoordinator.cpp b/installerbuilder/libinstaller/progresscoordinator.cpp
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+++ b/installerbuilder/libinstaller/progresscoordinator.cpp
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+/**************************************************************************
+**
+** This file is part of Qt SDK**
+**
+** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).*
+**
+** Contact:  Nokia Corporation qt-info@nokia.com**
+**
+** No Commercial Usage
+**
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+**
+** This file may be used under the terms of the GNU Lesser 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 ensure the GNU Lesser General
+** Public License version 2.1 requirements will be met:
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception version
+** 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you are unsure which license is appropriate for your use, please contact
+** (qt-info@nokia.com).
+**
+**************************************************************************/
+#include "progresscoordinator.h"
+
+#include <QCoreApplication>
+#include <QDebug>
+
+using namespace QInstaller;
+
+uint qHash(QPointer<QObject> key)
+{
+    return qHash(key.data());
+}
+
+
+ProgressCoordninator::ProgressCoordninator(QObject *parent) :
+    QObject(parent),
+    m_currentCompletePercentage(0),
+    m_currentBasePercentage(0),
+    m_manualAddedPercentage(0),
+    m_reservedPercentage(0),
+    m_undoMode(false),
+    m_reachedPercentageBeforeUndo(0)
+{
+    //it have to be in the main thread
+    //to be able refresh the ui with processEvents
+    Q_ASSERT(thread() == qApp->thread());
+}
+
+ProgressCoordninator::~ProgressCoordninator()
+{
+}
+
+ProgressCoordninator* ProgressCoordninator::instance()
+{
+    static ProgressCoordninator* instance = 0;
+    if (instance == 0) {
+        instance = new ProgressCoordninator(qApp);
+    }
+    return instance;
+}
+
+void ProgressCoordninator::reset()
+{
+    disconnectAllSenders();
+    m_senderPendingCalculatedPercentageHash.clear();
+    m_senderPartProgressSizeHash.clear();
+    m_installationLabelText.clear();
+    m_currentCompletePercentage = 0;
+    m_currentBasePercentage = 0;
+    m_manualAddedPercentage = 0;
+    m_reservedPercentage = 0;
+    m_undoMode = false;
+    m_reachedPercentageBeforeUndo = 0;
+    emit detailTextResetNeeded();
+}
+
+void ProgressCoordninator::registerPartProgress(QObject *sender, const char *signal, double partProgressSize)
+{
+    Q_ASSERT(sender);
+    Q_ASSERT(QString::fromLatin1(signal).contains(QLatin1String("(double)")));
+    Q_ASSERT(partProgressSize <= 1);
+
+    m_senderPartProgressSizeHash.insert(sender, partProgressSize);
+    bool isConnected = connect(sender, signal, this, SLOT(partProgressChanged(double)));
+    Q_UNUSED(isConnected);
+    Q_ASSERT(isConnected);
+}
+
+void ProgressCoordninator::partProgressChanged(double fraction)
+{
+    if (fraction < 0 || fraction > 1) {
+        qWarning() << QString(QLatin1String("The fraction is outside from possible value ")) << QString::number(fraction);
+        return;
+    }
+    double partProgressSize = m_senderPartProgressSizeHash.value(sender(), 0);
+    if (partProgressSize == 0) {
+        qWarning() << QString(QLatin1String("it seems that this sender was not registered in the right way: ")) << sender();
+        return;
+    }
+
+    if (m_undoMode) {
+        //qDebug() << "fraction: " << fraction;
+        double maxSize = m_reachedPercentageBeforeUndo * partProgressSize;
+        double pendingCalculatedPartPercentage = maxSize * fraction;
+
+        double newCurrentCompletePercentage = m_currentBasePercentage - pendingCalculatedPartPercentage + allPendingCalculatedPartPercentages(sender()); //allPendingCalculatedPartPercentages has negative values
+
+        //we can't check this here, because some round issues can make it little bit under 0 or over 100
+        //Q_ASSERT(newCurrentCompletePercentage >= 0);
+        //Q_ASSERT(newCurrentCompletePercentage <= 100);
+        if (newCurrentCompletePercentage < 0) {
+            qDebug() << newCurrentCompletePercentage << " is smaller then 0 - this should happen max once";
+            newCurrentCompletePercentage = 0;
+        }
+        if (newCurrentCompletePercentage > 100) {
+            qDebug() << newCurrentCompletePercentage << " is bigger then 100 - this should happen max once";
+            newCurrentCompletePercentage = 100;
+        }
+        if (qRound(m_currentCompletePercentage) < qRound(newCurrentCompletePercentage)) {
+            qFatal("This should not happen!");
+        }
+
+        m_currentCompletePercentage = newCurrentCompletePercentage;
+        if (fraction == 1) {
+            m_currentBasePercentage = m_currentBasePercentage - pendingCalculatedPartPercentage;
+            m_senderPendingCalculatedPercentageHash.insert(sender(), 0);
+        } else {
+            m_senderPendingCalculatedPercentageHash.insert(sender(), pendingCalculatedPartPercentage);
+        }
+
+    } else { //if (m_undoMode)
+        int availablePercentagePoints = 100 - m_manualAddedPercentage - m_reservedPercentage;
+        double pendingCalculatedPartPercentage = availablePercentagePoints * partProgressSize * fraction;
+        //double checkValue = allPendingCalculatedPartPercentages(sender());
+
+        double newCurrentCompletePercentage = m_manualAddedPercentage +
+                                              m_currentBasePercentage +
+                                              pendingCalculatedPartPercentage +
+                                              allPendingCalculatedPartPercentages(sender());
+
+        //we can't check this here, because some round issues can make it little bit under 0 or over 100
+        //Q_ASSERT(newCurrentCompletePercentage >= 0);
+        //Q_ASSERT(newCurrentCompletePercentage <= 100);
+        if (newCurrentCompletePercentage < 0) {
+            qDebug() << newCurrentCompletePercentage << " is smaller then 0 - this should happen max once";
+            newCurrentCompletePercentage = 0;
+        }
+        if (newCurrentCompletePercentage > 100) {
+            qDebug() << newCurrentCompletePercentage << " is bigger then 100 - this should happen max once";
+            newCurrentCompletePercentage = 100;
+        }
+        if (qRound(m_currentCompletePercentage) > qRound(newCurrentCompletePercentage)) {
+            qFatal("This should not happen!");
+        }
+        m_currentCompletePercentage = newCurrentCompletePercentage;
+
+        if (fraction == 1 || fraction == 0) {
+            m_currentBasePercentage = m_currentBasePercentage + pendingCalculatedPartPercentage;
+            m_senderPendingCalculatedPercentageHash.insert(sender(), 0);
+        } else {
+            m_senderPendingCalculatedPercentageHash.insert(sender(), pendingCalculatedPartPercentage);
+        }
+    } //if (m_undoMode)
+}
+
+
+/*!
+ * Contains the installation progress percentage.
+ */
+int ProgressCoordninator::progressInPercentage() const
+{
+    int currentValue = qRound(m_currentCompletePercentage);
+    Q_ASSERT( currentValue <= 100);
+    Q_ASSERT( currentValue >= 0);
+    return currentValue;
+}
+
+void ProgressCoordninator::disconnectAllSenders()
+{
+    foreach(QPointer<QObject> sender, m_senderPartProgressSizeHash.keys()) {
+        if (!sender.isNull()) {
+            bool isDisconnected = sender->disconnect(this);
+            Q_UNUSED(isDisconnected);
+            Q_ASSERT(isDisconnected);
+        }
+    }
+}
+
+void ProgressCoordninator::setUndoMode()
+{
+    Q_ASSERT(!m_undoMode);
+    m_undoMode = true;
+
+    disconnectAllSenders();
+    m_senderPendingCalculatedPercentageHash.clear();
+
+    m_reachedPercentageBeforeUndo = progressInPercentage();
+    m_currentBasePercentage = m_reachedPercentageBeforeUndo;
+}
+
+void ProgressCoordninator::addManualPercentagePoints(int value)
+{
+    m_manualAddedPercentage = m_manualAddedPercentage + value;
+    if (m_undoMode) {
+        //we don't do other things in the undomode, maybe later if the last percentage point comes to early
+        return;
+    }
+    m_currentCompletePercentage = m_currentCompletePercentage + value;
+    qApp->processEvents(); //makes the result available in the ui
+}
+
+void ProgressCoordninator::addReservePercentagePoints(int value)
+{
+    m_reservedPercentage = m_reservedPercentage + value;
+}
+
+void ProgressCoordninator::setLabelText(const QString &text)
+{
+    if (m_installationLabelText == text)
+        return;
+    m_installationLabelText = text;
+}
+
+/*!
+ * Contains the installation progress label text.
+ */
+QString ProgressCoordninator::labelText() const
+{
+    return m_installationLabelText;
+}
+
+void ProgressCoordninator::emitDetailTextChanged(const QString &text)
+{
+    emit detailTextChanged(text);
+}
+
+void ProgressCoordninator::emitLabelAndDetailTextChanged(const QString &text)
+{
+    emit detailTextChanged(text);
+    m_installationLabelText = QString(text).remove(QLatin1String("\n"));
+    qApp->processEvents(); //makes the result available in the ui
+}
+
+double ProgressCoordninator::allPendingCalculatedPartPercentages(QObject *excludeKeyObject)
+{
+    double result = 0;
+
+    QHash<QPointer<QObject>, double>::iterator it = m_senderPendingCalculatedPercentageHash.begin();
+    while ( it != m_senderPendingCalculatedPercentageHash.end() ) {
+        if (it.key() != excludeKeyObject) {
+            result = result + it.value();
+        }
+        it++;
+    }
+    return result;
+}