1 files changed, 581 insertions, 0 deletions
diff --git a/tools/qmldebugger/standalone/canvasframerate.cpp b/tools/qmldebugger/standalone/canvasframerate.cpp
new file mode 100644
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--- /dev/null
+++ b/tools/qmldebugger/standalone/canvasframerate.cpp
@@ -0,0 +1,581 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt QML Debugger of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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
+** 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, 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 have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#include <QtCore/qdebug.h>
+#include <QtCore/qstringlist.h>
+#include <QtCore/qdatastream.h>
+#include <QtCore/qmargins.h>
+
+#include <QtGui/qapplication.h>
+#include <QtGui/qpainter.h>
+#include <QtGui/qtooltip.h>
+#include <QtGui/qslider.h>
+#include <QtGui/qscrollbar.h>
+#include <QtGui/qspinbox.h>
+#include <QtGui/qgroupbox.h>
+#include <QtGui/qboxlayout.h>
+#include <QtGui/qlabel.h>
+#include <QtGui/qlineedit.h>
+#include <QtGui/qpushbutton.h>
+#include <QtGui/qtabwidget.h>
+
+#include <QResizeEvent>
+#include <QShowEvent>
+
+#include <private/qmldebugclient_p.h>
+#include "canvasframerate.h"
+
+QT_BEGIN_NAMESPACE
+
+class QLineGraph : public QWidget
+{
+Q_OBJECT
+public:
+    QLineGraph(QAbstractSlider *slider, QWidget * = 0);
+
+    void setPosition(int);
+
+public slots:
+    void addSample(int, int, int, bool);
+    void setResolutionForHeight(int);
+    void clear();
+
+protected:
+    virtual void paintEvent(QPaintEvent *);
+    virtual void mouseMoveEvent(QMouseEvent *);
+    virtual void leaveEvent(QEvent *);
+    virtual void wheelEvent(QWheelEvent *event);
+
+private slots:
+    void sliderChanged(int);
+
+private:
+    void updateSlider();
+    void drawSample(QPainter *, int, const QRect &, QList<QRect> *);
+    void drawTime(QPainter *, const QRect &);
+    QRect findContainingRect(const QList<QRect> &rects, const QPoint &pos) const;
+    struct Sample { 
+        int sample[3];
+        bool isBreak;
+    };
+    QList<Sample> _samples;
+
+    QAbstractSlider *slider;
+    int position;
+    int samplesPerWidth;
+    int resolutionForHeight;
+    bool ignoreScroll;
+    QMargins graphMargins;
+
+    QList<QRect> rectsPaintTime;    // time to do a paintEvent()
+    QList<QRect> rectsTimeBetween;  // time between frames
+    QRect highlightedBar;
+};
+
+QLineGraph::QLineGraph(QAbstractSlider *slider, QWidget *parent)
+: QWidget(parent), slider(slider), position(-1), samplesPerWidth(99), resolutionForHeight(50),
+  ignoreScroll(false), graphMargins(65, 10, 71, 35)
+{
+    setMouseTracking(true);
+
+    slider->setMaximum(0);
+    slider->setMinimum(0);
+    slider->setSingleStep(1);
+    
+    connect(slider, SIGNAL(valueChanged(int)), this, SLOT(sliderChanged(int)));
+}
+
+void QLineGraph::sliderChanged(int v)
+{
+    if(ignoreScroll)
+        return;
+
+    if (v == slider->maximum())
+        position = -1;
+    else
+        position = v;
+    
+    update();
+    
+    // update highlightedRect
+    QPoint pos = mapFromGlobal(QCursor::pos());
+    if (geometry().contains(pos)) {
+        QMouseEvent *me = new QMouseEvent(QEvent::MouseMove, pos,
+                Qt::NoButton, Qt::NoButton, Qt::NoModifier);
+        QApplication::postEvent(this, me);
+    }
+}
+
+void QLineGraph::clear()
+{
+    _samples.clear();
+    rectsPaintTime.clear();
+    rectsTimeBetween.clear();
+    highlightedBar = QRect();
+    position = -1;
+
+    updateSlider();
+    update();
+}
+
+void QLineGraph::updateSlider()
+{
+    ignoreScroll = true;
+    slider->setMaximum(qMax(0, _samples.count() - samplesPerWidth - 1));
+
+    if(position == -1) {
+        slider->setValue(slider->maximum());
+    } else {
+        slider->setValue(position);
+    }    
+    ignoreScroll = false;
+}
+
+void QLineGraph::addSample(int a, int b, int d, bool isBreak)
+{
+    Sample s;
+    s.isBreak = isBreak;
+    s.sample[0] = a;
+    s.sample[1] = b;
+    s.sample[2] = d;
+    _samples << s;
+    updateSlider();
+    update();
+}
+
+void QLineGraph::setPosition(int p)
+{
+    sliderChanged(p);
+}
+
+void QLineGraph::drawTime(QPainter *p, const QRect &rect)
+{
+    if(_samples.isEmpty())
+        return;
+
+    int first = position;
+    if(first == -1)
+        first = qMax(0, _samples.count() - samplesPerWidth - 1);
+    int last = qMin(_samples.count() - 1, first + samplesPerWidth);
+
+    qreal scaleX = qreal(rect.width()) / qreal(samplesPerWidth);
+
+    int t = 0;
+
+    for(int ii = first; ii <= last; ++ii) {
+        int sampleTime = _samples.at(ii).sample[2] / 1000;
+        if(sampleTime != t) {
+
+            int xEnd = rect.left() + scaleX * (ii - first);
+            p->drawLine(xEnd, rect.bottom(), xEnd, rect.bottom() + 7);
+
+            QRect text(xEnd - 30, rect.bottom() + 10, 60, 30);
+
+            p->drawText(text, Qt::AlignHCenter | Qt::AlignTop, QString::number(_samples.at(ii).sample[2]));
+
+            t = sampleTime;
+        }
+    }
+
+}
+
+void QLineGraph::drawSample(QPainter *p, int s, const QRect &rect, QList<QRect> *record)
+{
+    if(_samples.isEmpty())
+        return;
+
+    int first = position;
+    if(first == -1)
+        first = qMax(0, _samples.count() - samplesPerWidth - 1);
+    int last = qMin(_samples.count() - 1, first + samplesPerWidth);
+
+    qreal scaleY = qreal(rect.height()) / resolutionForHeight;
+    qreal scaleX = qreal(rect.width()) / qreal(samplesPerWidth);
+
+    int xEnd;
+    int lastXEnd = rect.left();
+
+    p->save();
+    p->setPen(Qt::NoPen);
+    for(int ii = first + 1; ii <= last; ++ii) {
+
+        xEnd = rect.left() + scaleX * (ii - first);
+        int yEnd = rect.bottom() - _samples.at(ii).sample[s] * scaleY;
+
+        if (!(s == 0 && _samples.at(ii).isBreak)) {
+            QRect bar(lastXEnd, yEnd, scaleX, _samples.at(ii).sample[s] * scaleY);
+            record->append(bar);
+            p->drawRect(bar);
+        }
+
+        lastXEnd = xEnd;
+    }
+    p->restore();
+}
+
+void QLineGraph::paintEvent(QPaintEvent *)
+{
+    QPainter p(this);
+    p.setRenderHint(QPainter::Antialiasing);
+
+    QRect r(graphMargins.left(), graphMargins.top(),
+            width() - graphMargins.right(), height() - graphMargins.bottom());
+
+    p.save();
+    p.rotate(-90);
+    p.translate(-r.height()/2 - r.width()/2 - graphMargins.right(), -r.height()/2);
+    p.drawText(r, Qt::AlignCenter, tr("Frame rate"));
+    p.restore();
+
+    p.setBrush(QColor("lightsteelblue"));
+    rectsTimeBetween.clear();
+    drawSample(&p, 0, r, &rectsTimeBetween);
+
+    p.setBrush(QColor("pink"));
+    rectsPaintTime.clear();
+    drawSample(&p, 1, r, &rectsPaintTime);
+
+    if (!highlightedBar.isNull()) {
+        p.setBrush(Qt::darkGreen);
+        p.drawRect(highlightedBar);
+    }
+
+    p.setBrush(Qt::NoBrush);
+    p.drawRect(r);
+
+    slider->setGeometry(x() + r.x(), slider->y(), r.width(), slider->height());
+
+    for(int ii = 0; ii <= resolutionForHeight; ++ii) {
+        int y = 1 + r.bottom() - ii * r.height() / resolutionForHeight;
+
+        if((ii % 10) == 0) {
+            p.drawLine(r.left() - 20, y, r.left(), y);
+            QRect text(r.left() - 20 - 53, y - 10, 50, 20);
+            p.drawText(text, Qt::AlignRight | Qt::AlignVCenter, QString::number(ii));
+        } else {
+            p.drawLine(r.left() - 7, y, r.left(), y);
+        }
+    }
+
+    drawTime(&p, r);
+}
+
+void QLineGraph::mouseMoveEvent(QMouseEvent *event)
+{
+    QPoint pos = event->pos();
+
+    QRect rect = findContainingRect(rectsPaintTime, pos);
+    if (rect.isNull())
+        rect = findContainingRect(rectsTimeBetween, pos);
+
+    if (!highlightedBar.isNull())
+        update(highlightedBar.adjusted(-1, -1, 1, 1));
+    highlightedBar = rect;
+
+    if (!rect.isNull()) {
+        QRect graph(graphMargins.left(), graphMargins.top(),
+                    width() - graphMargins.right(), height() - graphMargins.bottom());
+        qreal scaleY = qreal(graph.height()) / resolutionForHeight;
+        QToolTip::showText(event->globalPos(), QString::number(qRound(rect.height() / scaleY)), this, rect);
+        update(rect.adjusted(-1, -1, 1, 1));
+    }
+}
+
+void QLineGraph::leaveEvent(QEvent *)
+{
+    if (!highlightedBar.isNull()) {
+        QRect bar = highlightedBar.adjusted(-1, -1, 1, 1);
+        highlightedBar = QRect();
+        update(bar);
+    }
+}
+
+void QLineGraph::wheelEvent(QWheelEvent *event)
+{
+    QWheelEvent we(QPoint(0,0), event->delta(), event->buttons(), event->modifiers(), event->orientation());
+    QApplication::sendEvent(slider, &we);
+}
+
+void QLineGraph::setResolutionForHeight(int resolution)
+{
+    resolutionForHeight = resolution;
+    update();
+}
+
+QRect QLineGraph::findContainingRect(const QList<QRect> &rects, const QPoint &pos) const
+{
+    for (int i=0; i<rects.count(); i++) {
+        if (rects[i].contains(pos))
+            return rects[i]; 
+    }
+    return QRect();
+}
+
+
+class GraphWindow : public QWidget
+{
+    Q_OBJECT
+public:
+    GraphWindow(QWidget *parent = 0);
+
+    virtual QSize sizeHint() const;
+
+public slots:
+    void addSample(int, int, int, bool);
+    void setResolutionForHeight(int);
+    void clear();
+
+private:
+    QLineGraph *m_graph;
+};
+
+GraphWindow::GraphWindow(QWidget *parent)
+    : QWidget(parent)
+{
+    QSlider *scroll = new QSlider(Qt::Horizontal);
+    scroll->setFocusPolicy(Qt::WheelFocus);
+    m_graph = new QLineGraph(scroll);
+
+    setFocusPolicy(Qt::WheelFocus);
+    setFocusProxy(scroll);
+
+    QVBoxLayout *layout = new QVBoxLayout(this);
+    layout->setContentsMargins(0, 0, 5, 0);
+    layout->setSpacing(0);
+    layout->addWidget(m_graph, 2);
+    layout->addWidget(new QLabel(tr("Total time elapsed (ms)")), 0, Qt::AlignHCenter);
+    layout->addWidget(scroll);
+}
+
+void GraphWindow::addSample(int a, int b, int d, bool isBreak)
+{
+    m_graph->addSample(a, b, d, isBreak);
+}
+
+void GraphWindow::setResolutionForHeight(int res)
+{
+    m_graph->setResolutionForHeight(res);
+}
+
+void GraphWindow::clear()
+{
+    m_graph->clear();
+}
+
+QSize GraphWindow::sizeHint() const
+{
+    return QSize(400, 220);
+}
+    
+
+class CanvasFrameRatePlugin : public QmlDebugClient
+{
+    Q_OBJECT
+public:
+    CanvasFrameRatePlugin(QmlDebugConnection *client);
+
+signals:
+    void sample(int, int, int, bool);
+
+protected:
+    virtual void messageReceived(const QByteArray &);
+
+private:
+    int lb;
+    int ld;
+};
+
+CanvasFrameRatePlugin::CanvasFrameRatePlugin(QmlDebugConnection *client)
+: QmlDebugClient(QLatin1String("CanvasFrameRate"), client), lb(-1)
+{
+}
+
+void CanvasFrameRatePlugin::messageReceived(const QByteArray &data)
+{
+    QByteArray rwData = data;
+    QDataStream stream(&rwData, QIODevice::ReadOnly);
+
+    int b; int c; int d; bool isBreak;
+    stream >> b >> c >> d >> isBreak;
+
+    if (lb != -1)
+        emit sample(c, lb, ld, isBreak);
+
+    lb = b;
+    ld = d;
+}
+
+CanvasFrameRate::CanvasFrameRate(QWidget *parent)
+: QWidget(parent),
+  m_plugin(0)
+{
+    m_tabs = new QTabWidget(this);
+
+    QHBoxLayout *bottom = new QHBoxLayout;
+    bottom->setMargin(0);
+    bottom->setSpacing(10);
+
+    m_res = new QSpinBox;
+    m_res->setRange(30, 200);
+    m_res->setValue(m_res->minimum());
+    m_res->setSingleStep(10);
+    m_res->setSuffix(QLatin1String("ms"));
+    bottom->addWidget(new QLabel(tr("Resolution:")));
+    bottom->addWidget(m_res);
+
+    bottom->addStretch();
+
+    m_clearButton = new QPushButton(tr("Clear"));
+    connect(m_clearButton, SIGNAL(clicked()), SLOT(clearGraph()));
+    bottom->addWidget(m_clearButton);
+
+    QPushButton *pb = new QPushButton(tr("New Graph"), this);
+    connect(pb, SIGNAL(clicked()), this, SLOT(newTab()));
+    bottom->addWidget(pb);
+    
+    m_group = new QGroupBox(tr("Enabled"));
+    m_group->setCheckable(true);
+    m_group->setChecked(false);
+    connect(m_group, SIGNAL(toggled(bool)), SLOT(enabledToggled(bool)));
+
+    QVBoxLayout *groupLayout = new QVBoxLayout(m_group);
+    groupLayout->setContentsMargins(5, 0, 5, 0);
+    groupLayout->setSpacing(2);
+    groupLayout->addWidget(m_tabs);
+    groupLayout->addLayout(bottom);
+    
+    QVBoxLayout *layout = new QVBoxLayout;
+    layout->setContentsMargins(0, 10, 0, 0);
+    layout->setSpacing(0);
+    layout->addWidget(m_group);
+    setLayout(layout);
+}
+
+void CanvasFrameRate::reset(QmlDebugConnection *conn)
+{
+    delete m_plugin;
+    m_plugin = 0;
+
+    QWidget *w;
+    for (int i=0; i<m_tabs->count(); i++) {
+        w = m_tabs->widget(i);
+        m_tabs->removeTab(i);
+        delete w;
+    }
+
+    if (conn) {
+        connect(conn, SIGNAL(stateChanged(QAbstractSocket::SocketState)),
+                SLOT(connectionStateChanged(QAbstractSocket::SocketState)));
+        if (conn->state() == QAbstractSocket::ConnectedState)
+            handleConnected(conn);
+    }
+}
+
+void CanvasFrameRate::connectionStateChanged(QAbstractSocket::SocketState state)
+{
+    if (state == QAbstractSocket::UnconnectedState) {
+        delete m_plugin;
+        m_plugin = 0;
+    } else if (state == QAbstractSocket::ConnectedState) {
+        handleConnected(qobject_cast<QmlDebugConnection*>(sender()));
+    }        
+}
+
+void CanvasFrameRate::handleConnected(QmlDebugConnection *conn)
+{
+    delete m_plugin;
+    m_plugin = new CanvasFrameRatePlugin(conn);
+    enabledToggled(m_group->isChecked());
+    newTab();
+}
+
+void CanvasFrameRate::setSizeHint(const QSize &size)
+{
+    m_sizeHint = size;
+}
+
+QSize CanvasFrameRate::sizeHint() const
+{
+    return m_sizeHint;
+}
+
+void CanvasFrameRate::clearGraph()
+{
+    if (m_tabs->count()) {
+        GraphWindow *w = qobject_cast<GraphWindow*>(m_tabs->currentWidget());
+        if (w)
+            w->clear();
+    }
+}
+
+void CanvasFrameRate::newTab()
+{
+    if (!m_plugin)
+        return;
+
+    if (m_tabs->count()) {
+        QWidget *w = m_tabs->widget(m_tabs->count() - 1);
+        QObject::disconnect(m_plugin, SIGNAL(sample(int,int,int,bool)),
+                            w, SLOT(addSample(int,int,int,bool)));
+    }
+
+    int count = m_tabs->count();
+
+    GraphWindow *graph = new GraphWindow;
+    graph->setResolutionForHeight(m_res->value());
+    connect(m_plugin, SIGNAL(sample(int,int,int,bool)),
+            graph, SLOT(addSample(int,int,int,bool)));
+    connect(m_res, SIGNAL(valueChanged(int)),
+            graph, SLOT(setResolutionForHeight(int)));
+
+    QString name = QLatin1String("Graph ") + QString::number(count + 1);
+    m_tabs->addTab(graph, name);
+    m_tabs->setCurrentIndex(count);
+}
+
+void CanvasFrameRate::enabledToggled(bool checked)
+{
+    if (m_plugin)
+        static_cast<QmlDebugClient *>(m_plugin)->setEnabled(checked);
+}
+
+QT_END_NAMESPACE
+
+#include "canvasframerate.moc"