1 files changed, 489 insertions, 0 deletions

diff --git a/plugins/qmlprofiler/timelinerenderer.cpp b/plugins/qmlprofiler/timelinerenderer.cpp
new file mode 100644
index 0000000000..c9cb5d2a97
--- /dev/null
+++ b/plugins/qmlprofiler/timelinerenderer.cpp
@@ -0,0 +1,489 @@
+/****************************************************************************
+**
+** 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 "timelinerenderer.h"
+
+#include <qdeclarativecontext.h>
+#include <qdeclarativeproperty.h>
+#include <QTimer>
+#include <QPixmap>
+#include <QPainter>
+#include <QGraphicsSceneMouseEvent>
+
+#include <math.h>
+
+using namespace QmlProfiler::Internal;
+
+const int DefaultRowHeight = 30;
+
+TimelineRenderer::TimelineRenderer(QDeclarativeItem *parent) :
+    QDeclarativeItem(parent), m_startTime(0), m_endTime(0), m_spacing(0),
+    m_lastStartTime(0), m_lastEndTime(0)
+  , m_profilerModelProxy(0)
+{
+    clearData();
+    setFlag(QGraphicsItem::ItemHasNoContents, false);
+    setAcceptedMouseButtons(Qt::LeftButton);
+    setAcceptHoverEvents(true);
+    for (int i=0; i<QmlDebug::MaximumQmlEventType; i++)
+        m_rowsExpanded << false;
+}
+
+void TimelineRenderer::componentComplete()
+{
+    const QMetaObject *metaObject = this->metaObject();
+    int propertyCount = metaObject->propertyCount();
+    int requestPaintMethod = metaObject->indexOfMethod("requestPaint()");
+    for (int ii = TimelineRenderer::staticMetaObject.propertyCount(); ii < propertyCount; ++ii) {
+        QMetaProperty p = metaObject->property(ii);
+        if (p.hasNotifySignal())
+            QMetaObject::connect(this, p.notifySignalIndex(), this, requestPaintMethod, 0, 0);
+    }
+    QDeclarativeItem::componentComplete();
+}
+
+void TimelineRenderer::requestPaint()
+{
+    update();
+}
+
+void TimelineRenderer::paint(QPainter *p, const QStyleOptionGraphicsItem *, QWidget *)
+{
+    qint64 windowDuration = m_endTime - m_startTime;
+    if (windowDuration <= 0)
+        return;
+
+    m_spacing = qreal(width()) / windowDuration;
+
+    m_rowWidths.clear();
+    // The "1+" is because the reference screenshot features an empty row per type, in order to leave space for the title
+    for (int i=0; i<QmlDebug::MaximumQmlEventType; i++) {
+        m_rowWidths << m_profilerModelProxy->categoryDepth(i);
+    }
+
+    // event rows
+    m_rowStarts.clear();
+    int pos = 0;
+    for (int i=0; i<QmlDebug::MaximumQmlEventType; i++) {
+        m_rowStarts << pos;
+        pos += DefaultRowHeight * m_rowWidths[i];
+    }
+
+    p->setPen(Qt::transparent);
+
+    // speedup: don't draw overlapping events, just skip them
+    m_rowLastX.clear();
+    for (int i=0; i<QmlDebug::MaximumQmlEventType; i++)
+        for (int j=0; j<m_rowWidths[i]; j++)
+            m_rowLastX << -m_startTime * m_spacing;
+
+    int firstIndex = m_profilerModelProxy->findFirstIndex(m_startTime);
+    int lastIndex = m_profilerModelProxy->findLastIndex(m_endTime);
+
+    if (lastIndex < m_profilerModelProxy->count()) {
+        drawItemsToPainter(p, firstIndex, lastIndex);
+        drawSelectionBoxes(p, firstIndex, lastIndex);
+        drawBindingLoopMarkers(p, firstIndex, lastIndex);
+    }
+    m_lastStartTime = m_startTime;
+    m_lastEndTime = m_endTime;
+
+}
+
+QColor TimelineRenderer::colorForItem(int itemIndex)
+{
+    int ndx = m_profilerModelProxy->getEventId(itemIndex);
+    return QColor::fromHsl((ndx*25)%360, 76, 166);
+}
+
+void TimelineRenderer::drawItemsToPainter(QPainter *p, int fromIndex, int toIndex)
+{
+    int x, y, width, height, rowNumber, eventType;
+    for (int i = fromIndex; i <= toIndex; i++) {
+        x = (m_profilerModelProxy->getStartTime(i) - m_startTime) * m_spacing;
+
+        eventType = m_profilerModelProxy->getEventType(i);
+        y = m_rowStarts[eventType] + m_profilerModelProxy->getEventRow(i) * DefaultRowHeight;
+
+        width = m_profilerModelProxy->getDuration(i)*m_spacing;
+        if (width < 1)
+            width = 1;
+
+        rowNumber = y/DefaultRowHeight;
+        if (m_rowLastX[rowNumber] > x+width)
+            continue;
+        m_rowLastX[rowNumber] = x+width;
+
+        // special: animations
+        /*if (eventType == 0 && m_profilerDataModel->getAnimationCount(i) >= 0) {
+            double scale = m_profilerDataModel->getMaximumAnimationCount() -
+                    m_profilerDataModel->getMinimumAnimationCount();
+            double fraction;
+            if (scale > 1)
+                fraction = (double)(m_profilerDataModel->getAnimationCount(i) -
+                                    m_profilerDataModel->getMinimumAnimationCount()) / scale;
+            else
+                fraction = 1.0;
+            height = DefaultRowHeight * (fraction * 0.85 + 0.15);
+            y += DefaultRowHeight - height;
+
+            double fpsFraction = m_profilerDataModel->getFramerate(i) / 60.0;
+            if (fpsFraction > 1.0)
+                fpsFraction = 1.0;
+            p->setBrush(QColor::fromHsl((fpsFraction*96)+10, 76, 166));
+            p->drawRect(x, y, width, height);
+        } else */ {
+            // normal events
+            p->setBrush(colorForItem(i));
+            p->drawRect(x, y, width, DefaultRowHeight);
+        }
+    }
+}
+
+void TimelineRenderer::drawSelectionBoxes(QPainter *p, int fromIndex, int toIndex)
+{
+    if (m_selectedItem == -1)
+        return;
+
+    int id = m_profilerModelProxy->getEventId(m_selectedItem);
+
+    p->setBrush(Qt::transparent);
+    QColor selectionColor = Qt::blue;
+    if (m_selectionLocked)
+        selectionColor = QColor(96,0,255);
+    QPen strongPen(selectionColor, 3);
+    QPen lightPen(QBrush(selectionColor.lighter(130)), 2);
+    lightPen.setJoinStyle(Qt::MiterJoin);
+    p->setPen(lightPen);
+
+    int x, y, width, eventType;
+    p->setPen(lightPen);
+
+    QRect selectedItemRect(0,0,0,0);
+    for (int i = fromIndex; i <= toIndex; i++) {
+        if (m_profilerModelProxy->getEventId(i) != id)
+            continue;
+
+        x = (m_profilerModelProxy->getStartTime(i) - m_startTime) * m_spacing;
+        eventType = m_profilerModelProxy->getEventType(i);
+        y = m_rowStarts[eventType] + DefaultRowHeight * m_profilerModelProxy->getEventRow(i);
+
+        width = m_profilerModelProxy->getDuration(i)*m_spacing;
+        if (width<1)
+            width = 1;
+
+        if (i == m_selectedItem)
+            selectedItemRect = QRect(x, y-1, width, DefaultRowHeight+1);
+        else
+            p->drawRect(x,y,width,DefaultRowHeight);
+    }
+
+    // draw the selected item rectangle the last, so that it's overlayed
+    if (selectedItemRect.width() != 0) {
+            p->setPen(strongPen);
+            p->drawRect(selectedItemRect);
+    }
+}
+
+void TimelineRenderer::drawBindingLoopMarkers(QPainter *p, int fromIndex, int toIndex)
+{
+    int destindex;
+    int xfrom, xto;
+    int yfrom, yto;
+    int radius = DefaultRowHeight / 3;
+    QPen shadowPen = QPen(QColor("grey"),2);
+    QPen markerPen = QPen(QColor("orange"),2);
+    QBrush shadowBrush = QBrush(QColor("grey"));
+    QBrush markerBrush = QBrush(QColor("orange"));
+
+    p->save();
+    for (int i = fromIndex; i <= toIndex; i++) {
+        destindex = m_profilerModelProxy->getBindingLoopDest(i);
+        if (destindex >= 0) {
+            // from
+            xfrom = (m_profilerModelProxy->getStartTime(i) +
+                     m_profilerModelProxy->getDuration(i)/2 -
+                     m_startTime) * m_spacing;
+            yfrom = getYPosition(i);
+            yfrom += DefaultRowHeight / 2;
+
+            // to
+            xto = (m_profilerModelProxy->getStartTime(destindex) +
+                   m_profilerModelProxy->getDuration(destindex)/2 -
+                   m_startTime) * m_spacing;
+            yto = getYPosition(destindex);
+            yto += DefaultRowHeight / 2;
+
+            // radius
+            int eventWidth = m_profilerModelProxy->getDuration(i) * m_spacing;
+            radius = 5;
+            if (radius * 2 > eventWidth)
+                radius = eventWidth / 2;
+            if (radius < 2)
+                radius = 2;
+
+            // shadow
+            int shadowoffset = 2;
+            p->setPen(shadowPen);
+            p->setBrush(shadowBrush);
+            p->drawEllipse(QPoint(xfrom, yfrom + shadowoffset), radius, radius);
+            p->drawEllipse(QPoint(xto, yto + shadowoffset), radius, radius);
+            p->drawLine(QPoint(xfrom, yfrom + shadowoffset), QPoint(xto, yto + shadowoffset));
+
+
+            // marker
+            p->setPen(markerPen);
+            p->setBrush(markerBrush);
+            p->drawEllipse(QPoint(xfrom, yfrom), radius, radius);
+            p->drawEllipse(QPoint(xto, yto), radius, radius);
+            p->drawLine(QPoint(xfrom, yfrom), QPoint(xto, yto));
+        }
+    }
+    p->restore();
+}
+
+void TimelineRenderer::mousePressEvent(QGraphicsSceneMouseEvent *event)
+{
+    // special case: if there is a drag area below me, don't accept the
+    // events unless I'm actually clicking inside an item
+    if (m_currentSelection.eventIndex == -1 &&
+            event->pos().x()+x() >= m_startDragArea &&
+            event->pos().x()+x() <= m_endDragArea)
+        event->setAccepted(false);
+
+}
+
+void TimelineRenderer::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
+{
+    Q_UNUSED(event);
+    manageClicked();
+}
+
+void TimelineRenderer::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
+{
+    event->setAccepted(false);
+}
+
+
+void TimelineRenderer::hoverMoveEvent(QGraphicsSceneHoverEvent *event)
+{
+    Q_UNUSED(event);
+    manageHovered(event->pos().x(), event->pos().y());
+    if (m_currentSelection.eventIndex == -1)
+        event->setAccepted(false);
+}
+
+void TimelineRenderer::manageClicked()
+{
+    if (m_currentSelection.eventIndex != -1) {
+        if (m_currentSelection.eventIndex == m_selectedItem)
+            setSelectionLocked(!m_selectionLocked);
+        else
+            setSelectionLocked(true);
+        emit itemPressed(m_currentSelection.eventIndex);
+    } else {
+        setSelectionLocked(false);
+    }
+    setSelectedItem(m_currentSelection.eventIndex);
+}
+
+void TimelineRenderer::manageHovered(int x, int y)
+{
+    if (m_endTime - m_startTime <=0 || m_lastEndTime - m_lastStartTime <= 0)
+        return;
+
+    qint64 time = x * (m_endTime - m_startTime) / width() + m_startTime;
+    int row = y / DefaultRowHeight;
+
+    // already covered? nothing to do
+    if (m_currentSelection.eventIndex != -1 &&
+            time >= m_currentSelection.startTime &&
+            time <= m_currentSelection.endTime &&
+            row == m_currentSelection.row) {
+        return;
+    }
+
+    // find if there's items in the time range
+    int eventFrom = m_profilerModelProxy->findFirstIndex(time);
+    int eventTo = m_profilerModelProxy->findLastIndex(time);
+    if (eventTo < eventFrom || eventTo >= m_profilerModelProxy->count()) {
+        m_currentSelection.eventIndex = -1;
+        return;
+    }
+
+    // find if we are in the right column
+    int itemRow, eventType;
+    for (int i=eventTo; i>=eventFrom; --i) {
+        if (ceil(m_profilerModelProxy->getEndTime(i)*m_spacing) < floor(time*m_spacing))
+            continue;
+
+        eventType = m_profilerModelProxy->getEventType(i);
+        itemRow = m_rowStarts[eventType]/DefaultRowHeight +
+                    m_profilerModelProxy->getEventRow(i);
+        if (itemRow == row) {
+            // match
+            m_currentSelection.eventIndex = i;
+            m_currentSelection.startTime = m_profilerModelProxy->getStartTime(i);
+            m_currentSelection.endTime = m_profilerModelProxy->getEndTime(i);
+            m_currentSelection.row = row;
+            if (!m_selectionLocked)
+                setSelectedItem(i);
+            return;
+        }
+    }
+
+    m_currentSelection.eventIndex = -1;
+    return;
+}
+
+void TimelineRenderer::clearData()
+{
+    m_startTime = 0;
+    m_endTime = 0;
+    m_lastStartTime = 0;
+    m_lastEndTime = 0;
+    m_currentSelection.startTime = -1;
+    m_currentSelection.endTime = -1;
+    m_currentSelection.row = -1;
+    m_currentSelection.eventIndex = -1;
+    m_selectedItem = -1;
+    m_selectionLocked = true;
+}
+
+qint64 TimelineRenderer::getDuration(int index) const
+{
+}
+
+QString TimelineRenderer::getFilename(int index) const
+{
+}
+
+int TimelineRenderer::getLine(int index) const
+{
+}
+
+QString TimelineRenderer::getDetails(int index) const
+{
+}
+
+int TimelineRenderer::getYPosition(int index) const
+{
+    Q_ASSERT(m_profilerModelProxy);
+    if (index >= m_profilerModelProxy->count() || m_rowStarts.isEmpty())
+        return 0;
+    int eventType = m_profilerModelProxy->getEventType(index);
+    int y = m_rowStarts[eventType] + DefaultRowHeight * m_profilerModelProxy->getEventRow(index);
+    return y;
+}
+
+void TimelineRenderer::setRowExpanded(int rowIndex, bool expanded)
+{
+    // todo: m_rowsExpanded, should that be removed? where do I have it duplicated?
+    m_rowsExpanded[rowIndex] = expanded;
+    update();
+}
+
+void TimelineRenderer::selectNext()
+{
+    if (m_profilerModelProxy->count() == 0)
+        return;
+
+    // select next in view or after
+    int newIndex = m_selectedItem+1;
+    if (newIndex >= m_profilerModelProxy->count())
+        newIndex = 0;
+    if (m_profilerModelProxy->getEndTime(newIndex) < m_startTime)
+        newIndex = m_profilerModelProxy->findFirstIndexNoParents(m_startTime);
+    setSelectedItem(newIndex);
+}
+
+void TimelineRenderer::selectPrev()
+{
+    if (m_profilerModelProxy->count() == 0)
+        return;
+
+    // select last in view or before
+    int newIndex = m_selectedItem-1;
+    if (newIndex < 0)
+        newIndex = m_profilerModelProxy->count()-1;
+    if (m_profilerModelProxy->getStartTime(newIndex) > m_endTime)
+        newIndex = m_profilerModelProxy->findLastIndex(m_endTime);
+    setSelectedItem(newIndex);
+}
+
+int TimelineRenderer::nextItemFromId(int eventId) const
+{
+    int ndx = -1;
+    if (m_selectedItem == -1)
+        ndx = m_profilerModelProxy->findFirstIndexNoParents(m_startTime);
+    else
+        ndx = m_selectedItem + 1;
+    if (ndx >= m_profilerModelProxy->count())
+        ndx = 0;
+    int startIndex = ndx;
+    do {
+        if (m_profilerModelProxy->getEventId(ndx) == eventId)
+            return ndx;
+        ndx = (ndx + 1) % m_profilerModelProxy->count();
+    } while (ndx != startIndex);
+    return -1;
+}
+
+int TimelineRenderer::prevItemFromId(int eventId) const
+{
+    int ndx = -1;
+    if (m_selectedItem == -1)
+        ndx = m_profilerModelProxy->findFirstIndexNoParents(m_startTime);
+    else
+        ndx = m_selectedItem - 1;
+    if (ndx < 0)
+        ndx = m_profilerModelProxy->count() - 1;
+    int startIndex = ndx;
+    do {
+        if (m_profilerModelProxy->getEventId(ndx) == eventId)
+            return ndx;
+        if (--ndx < 0)
+            ndx = m_profilerModelProxy->count()-1;
+    } while (ndx != startIndex);
+    return -1;
+}
+
+void TimelineRenderer::selectNextFromId(int eventId)
+{
+    int eventIndex = nextItemFromId(eventId);
+    if (eventIndex != -1)
+        setSelectedItem(eventIndex);
+}
+
+void TimelineRenderer::selectPrevFromId(int eventId)
+{
+    int eventIndex = prevItemFromId(eventId);
+    if (eventIndex != -1)
+        setSelectedItem(eventIndex);
+}