Initial commit of qmlprofiler plugin (commercial version)

Change-Id: I08e838110c17a4a2085e0c3232424787186f9c31

plugins/qmlprofiler/qmlprofileroverviewmodelproxy.cpp

@@ -0,0 +1,227 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, 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, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+****************************************************************************/
+
+#include "qmlprofileroverviewmodelproxy.h"
+#include "qmlprofilermodelmanager.h"
+#include "qmlprofilersimplemodel.h"
+
+#include <qmldebug/qmlprofilereventtypes.h>
+
+#include <QVector>
+#include <QHash>
+#include <QUrl>
+#include <QStack>
+#include <QString>
+
+#include <QDebug>
+
+namespace QmlProfiler {
+namespace Internal {
+
+class QmlProfilerOverviewModelProxy::QmlProfilerOverviewModelProxyPrivate
+{
+public:
+    QmlProfilerOverviewModelProxyPrivate(QmlProfilerOverviewModelProxy *qq) : q(qq) {}
+    ~QmlProfilerOverviewModelProxyPrivate() {}
+
+    QVector <QmlProfilerOverviewModelProxy::QmlOverviewEvent> data;
+    int rowCount;
+
+    QmlProfilerModelManager *modelManager;
+    QmlProfilerOverviewModelProxy *q;
+};
+
+QmlProfilerOverviewModelProxy::QmlProfilerOverviewModelProxy(QmlProfilerModelManager *modelManager, QObject *parent)
+    : QObject(parent), d(new QmlProfilerOverviewModelProxyPrivate(this))
+{
+    d->modelManager = modelManager;
+    connect(modelManager->simpleModel(),SIGNAL(changed()),this,SLOT(dataChanged()));
+    connect(modelManager,SIGNAL(countChanged()),this,SIGNAL(countChanged()));
+}
+
+QmlProfilerOverviewModelProxy::~QmlProfilerOverviewModelProxy()
+{
+    delete d;
+}
+
+const QVector<QmlProfilerOverviewModelProxy::QmlOverviewEvent> QmlProfilerOverviewModelProxy::getData() const
+{
+    return d->data;
+}
+void QmlProfilerOverviewModelProxy::clear()
+{
+    d->data.clear();
+    d->rowCount = 0;
+}
+
+void QmlProfilerOverviewModelProxy::dataChanged()
+{
+    loadData();
+
+    emit dataAvailable();
+    emit emptyChanged();
+}
+
+void QmlProfilerOverviewModelProxy::detectBindingLoops()
+{
+    QStack<int> callStack;
+
+    static QVector<int> acceptedTypes =
+            QVector<int>() << QmlDebug::Compiling << QmlDebug::Creating
+                           << QmlDebug::Binding << QmlDebug::HandlingSignal;
+
+
+    for (int i = 0; i < d->data.size(); ++i) {
+        QmlOverviewEvent *event = &d->data[i];
+
+        if (!acceptedTypes.contains(event->eventType))
+            continue;
+
+        QmlOverviewEvent *potentialParent = callStack.isEmpty() ? 0 : &d->data[callStack.top()];
+
+        while (potentialParent
+               && !(potentialParent->startTime + potentialParent->duration > event->startTime)) {
+            callStack.pop();
+            potentialParent = callStack.isEmpty() ? 0 : &d->data[callStack.top()];
+        }
+
+        // check whether event is already in stack
+        for (int ii = 0; ii < callStack.size(); ++ii) {
+            if (d->data[callStack.at(ii)].eventId == event->eventId) {
+                event->bindingLoopHead = callStack.at(ii);
+                break;
+            }
+        }
+
+        callStack.push(i);
+    }
+}
+
+bool compareEvents(const QmlProfilerOverviewModelProxy::QmlOverviewEvent &t1, const QmlProfilerOverviewModelProxy::QmlOverviewEvent &t2)
+{
+    return t1.startTime < t2.startTime;
+}
+
+
+void QmlProfilerOverviewModelProxy::loadData()
+{
+    clear();
+    QmlProfilerSimpleModel *simpleModel = d->modelManager->simpleModel();
+    if (simpleModel->isEmpty())
+        return;
+
+    QHash <QString, int> eventIdDict;
+
+    const QVector<QmlProfilerSimpleModel::QmlEventData> eventList = simpleModel->getEvents();
+    foreach (const QmlProfilerSimpleModel::QmlEventData &event, eventList) {
+
+        // find event id
+        QString eventHash = QmlProfilerSimpleModel::getHashString(event);
+        int eventId;
+        if (eventIdDict.contains(eventHash)) {
+            eventId = eventIdDict[eventHash];
+        } else {
+            eventId = eventIdDict.count();
+            eventIdDict.insert(eventHash, eventId);
+        }
+
+        QmlOverviewEvent newEvent = {
+            event.eventType,
+            event.startTime,
+            event.duration,
+            1.0, // height
+            eventId, // eventId
+            event.eventType, // eventType
+            -1 // bindingLoopHead
+        };
+        d->data.append(newEvent);
+
+        if (event.eventType > d->rowCount)
+            d->rowCount = event.eventType;
+    }
+
+    qSort(d->data.begin(), d->data.end(), compareEvents);
+
+    detectBindingLoops();
+}
+
+/////////////////// QML interface
+
+bool QmlProfilerOverviewModelProxy::empty() const
+{
+    return count() == 0;
+}
+
+int QmlProfilerOverviewModelProxy::count() const
+{
+    return d->data.count();
+}
+
+qint64 QmlProfilerOverviewModelProxy::traceStartTime() const
+{
+    return d->modelManager->traceTime()->startTime();
+}
+
+qint64 QmlProfilerOverviewModelProxy::traceDuration() const
+{
+    return d->modelManager->traceTime()->duration();
+}
+
+qint64 QmlProfilerOverviewModelProxy::traceEndTime() const
+{
+    return d->modelManager->traceTime()->endTime();
+}
+
+qint64 QmlProfilerOverviewModelProxy::getStartTime(int index) const
+{
+    return d->data[index].startTime;
+}
+
+qint64 QmlProfilerOverviewModelProxy::getDuration(int index) const
+{
+    return d->data[index].duration;
+}
+
+int QmlProfilerOverviewModelProxy::getType(int index) const
+{
+    return d->data[index].row;
+}
+
+int QmlProfilerOverviewModelProxy::getEventId(int index) const
+{
+    return d->data[index].eventId;
+}
+
+int QmlProfilerOverviewModelProxy::getBindingLoopDest(int index) const
+{
+    return d->data[index].bindingLoopHead;
+}
+
+}
+}