forked from qt-creator/qt-creator
ef064154a4
By using the scene graph we can retain the geometry for events in the timeline on the GPU and potentially speed up the rendering for large amounts of items. Change-Id: I2cfbb8ef4ebc7b56f1977ec1facb4f2e7f2002ee Reviewed-by: Kai Koehne <kai.koehne@theqtcompany.com>
463 lines
16 KiB
C++
463 lines
16 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of Qt Creator.
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**
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Digia. For licensing terms and
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** conditions see http://www.qt.io/licensing. For further information
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** use the contact form at http://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 or version 3 as published by the Free
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** Software Foundation and appearing in the file LICENSE.LGPLv21 and
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** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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** following information to ensure the GNU Lesser General Public License
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** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Digia gives you certain additional
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** rights. These rights are described in the Digia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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****************************************************************************/
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#include "timelinerenderer.h"
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#include "timelinerenderpass.h"
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#include "qmlprofilernotesmodel.h"
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#include "timelineitemsrenderpass.h"
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#include "qmlprofilerbindingloopsrenderpass.h"
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#include "timelineselectionrenderpass.h"
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#include "timelinenotesrenderpass.h"
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#include <QElapsedTimer>
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#include <QQmlContext>
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#include <QQmlProperty>
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#include <QTimer>
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#include <QPixmap>
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#include <QGraphicsSceneMouseEvent>
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#include <QVarLengthArray>
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#include <QSGTransformNode>
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#include <QSGSimpleRectNode>
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#include <math.h>
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using namespace QmlProfiler;
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using namespace QmlProfiler::Internal;
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TimelineRenderer::TimelineRenderer(QQuickItem *parent) :
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QQuickItem(parent), m_model(0), m_zoomer(0), m_notes(0),
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m_selectedItem(-1), m_selectionLocked(true), m_modelDirty(false),
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m_rowHeightsDirty(false), m_rowCountsDirty(false), m_lastState(0)
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{
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setFlag(QQuickItem::ItemHasContents);
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resetCurrentSelection();
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setAcceptedMouseButtons(Qt::LeftButton);
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setAcceptHoverEvents(true);
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}
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void TimelineRenderer::setModel(TimelineModel *model)
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{
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if (m_model == model)
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return;
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if (m_model) {
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disconnect(m_model, SIGNAL(expandedChanged()), this, SLOT(update()));
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disconnect(m_model, SIGNAL(hiddenChanged()), this, SLOT(update()));
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disconnect(m_model, SIGNAL(expandedRowHeightChanged(int,int)),
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this, SLOT(setRowHeightsDirty()));
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disconnect(m_model, SIGNAL(emptyChanged()), this, SLOT(setModelDirty()));
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disconnect(m_model, SIGNAL(expandedRowCountChanged()), this, SLOT(setRowCountsDirty()));
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disconnect(m_model, SIGNAL(collapsedRowCountChanged()), this, SLOT(setRowCountsDirty()));
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}
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m_model = model;
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if (m_model) {
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connect(m_model, SIGNAL(expandedChanged()), this, SLOT(update()));
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connect(m_model, SIGNAL(hiddenChanged()), this, SLOT(update()));
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connect(m_model, SIGNAL(expandedRowHeightChanged(int,int)),
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this, SLOT(setRowHeightsDirty()));
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connect(m_model, SIGNAL(emptyChanged()), this, SLOT(setModelDirty()));
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connect(m_model, SIGNAL(expandedRowCountChanged()), this, SLOT(setRowCountsDirty()));
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connect(m_model, SIGNAL(collapsedRowCountChanged()), this, SLOT(setRowCountsDirty()));
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m_renderPasses = model->supportedRenderPasses();
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}
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setModelDirty();
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setRowHeightsDirty();
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setRowCountsDirty();
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emit modelChanged(m_model);
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}
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void TimelineRenderer::setZoomer(TimelineZoomControl *zoomer)
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{
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if (zoomer != m_zoomer) {
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if (m_zoomer != 0)
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disconnect(m_zoomer, SIGNAL(windowChanged(qint64,qint64)), this, SLOT(update()));
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m_zoomer = zoomer;
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if (m_zoomer != 0)
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connect(m_zoomer, SIGNAL(windowChanged(qint64,qint64)), this, SLOT(update()));
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emit zoomerChanged(zoomer);
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update();
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}
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}
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void TimelineRenderer::setNotes(QmlProfilerNotesModel *notes)
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{
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if (m_notes == notes)
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return;
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if (m_notes)
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disconnect(m_notes, &QmlProfilerNotesModel::changed,
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this, &TimelineRenderer::setNotesDirty);
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m_notes = notes;
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if (m_notes)
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connect(m_notes, &QmlProfilerNotesModel::changed,
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this, &TimelineRenderer::setNotesDirty);
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emit notesChanged(m_notes);
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update();
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}
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bool TimelineRenderer::modelDirty() const
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{
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return m_modelDirty;
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}
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bool TimelineRenderer::notesDirty() const
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{
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return m_notesDirty;
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}
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bool TimelineRenderer::rowHeightsDirty() const
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{
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return m_rowHeightsDirty;
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}
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void TimelineRenderer::resetCurrentSelection()
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{
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m_currentSelection.startTime = -1;
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m_currentSelection.endTime = -1;
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m_currentSelection.row = -1;
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m_currentSelection.eventIndex = -1;
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}
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TimelineRenderState *TimelineRenderer::findRenderState()
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{
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int newLevel = 0;
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int newOffset = 0;
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int level;
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int offset;
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qint64 newStart = m_zoomer->traceStart();
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qint64 newEnd = m_zoomer->traceEnd();
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qint64 start;
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qint64 end;
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do {
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level = newLevel;
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offset = newOffset;
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start = newStart;
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end = newEnd;
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newLevel = level + 1;
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qint64 range = m_zoomer->traceDuration() >> newLevel;
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newOffset = (m_zoomer->windowStart() - m_zoomer->traceStart() + range / 2) / range;
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newStart = m_zoomer->traceStart() + newOffset * range - range / 2;
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newEnd = newStart + range;
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} while (newStart < m_zoomer->windowStart() && newEnd > m_zoomer->windowEnd());
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if (m_renderStates.length() <= level)
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m_renderStates.resize(level + 1);
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if (m_renderStates[level].length() <= offset)
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m_renderStates[level].resize(offset + 1);
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TimelineRenderState *state = m_renderStates[level][offset];
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if (state == 0) {
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state = new TimelineRenderState(start, end, 1.0 / static_cast<qreal>(SafeFloatMax),
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m_renderPasses.size());
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m_renderStates[level][offset] = state;
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}
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return state;
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}
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QSGNode *TimelineRenderer::updatePaintNode(QSGNode *node,
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UpdatePaintNodeData *updatePaintNodeData)
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{
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Q_UNUSED(updatePaintNodeData)
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if (!m_model || m_model->hidden() || m_model->isEmpty() || m_zoomer->windowDuration() <= 0) {
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delete node;
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return 0;
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} else if (node == 0) {
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node = new QSGTransformNode;
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}
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qreal spacing = width() / m_zoomer->windowDuration();
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if (m_modelDirty || m_rowCountsDirty) {
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node->removeAllChildNodes();
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foreach (QVector<TimelineRenderState *> stateVector, m_renderStates)
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qDeleteAll(stateVector);
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m_renderStates.clear();
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m_lastState = 0;
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}
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TimelineRenderState *state = findRenderState();
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int lastIndex = m_model->lastIndex(m_zoomer->windowEnd());
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int firstIndex = m_model->firstIndex(m_zoomer->windowStart());
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for (int i = 0; i < m_renderPasses.length(); ++i)
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state->setPassState(i, m_renderPasses[i]->update(this, state, state->passState(i),
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firstIndex, lastIndex + 1,
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state != m_lastState, spacing));
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if (state->isEmpty()) { // new state
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for (int pass = 0; pass < m_renderPasses.length(); ++pass) {
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const TimelineRenderPass::State *passState = state->passState(pass);
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if (!passState)
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continue;
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if (passState->expandedOverlay)
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state->expandedOverlayRoot()->appendChildNode(passState->expandedOverlay);
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if (passState->collapsedOverlay)
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state->collapsedOverlayRoot()->appendChildNode(passState->collapsedOverlay);
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}
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int row = 0;
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for (int i = 0; i < m_model->expandedRowCount(); ++i) {
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QSGTransformNode *rowNode = new QSGTransformNode;
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for (int pass = 0; pass < m_renderPasses.length(); ++pass) {
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const TimelineRenderPass::State *passState = state->passState(pass);
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if (passState && passState->expandedRows.length() > row) {
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QSGNode *rowChildNode = passState->expandedRows[row];
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if (rowChildNode)
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rowNode->appendChildNode(rowChildNode);
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}
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}
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state->expandedRowRoot()->appendChildNode(rowNode);
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++row;
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}
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for (int row = 0; row < m_model->collapsedRowCount(); ++row) {
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QSGTransformNode *rowNode = new QSGTransformNode;
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QMatrix4x4 matrix;
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matrix.translate(0, row * TimelineModel::defaultRowHeight(), 0);
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rowNode->setMatrix(matrix);
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for (int pass = 0; pass < m_renderPasses.length(); ++pass) {
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const TimelineRenderPass::State *passState = state->passState(pass);
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if (passState && passState->collapsedRows.length() > row) {
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QSGNode *rowChildNode = passState->collapsedRows[row];
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if (rowChildNode)
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rowNode->appendChildNode(rowChildNode);
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}
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}
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state->collapsedRowRoot()->appendChildNode(rowNode);
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}
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}
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if (m_rowHeightsDirty || state != m_lastState) {
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int row = 0;
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qreal offset = 0;
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for (QSGNode *rowNode = state->expandedRowRoot()->firstChild(); rowNode != 0;
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rowNode = rowNode->nextSibling()) {
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qreal rowHeight = m_model->expandedRowHeight(row++);
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QMatrix4x4 matrix;
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matrix.translate(0, offset, 0);
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matrix.scale(1, rowHeight / TimelineModel::defaultRowHeight(), 1);
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offset += rowHeight;
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static_cast<QSGTransformNode *>(rowNode)->setMatrix(matrix);
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}
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}
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m_modelDirty = false;
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m_notesDirty = false;
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m_rowCountsDirty = false;
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m_rowHeightsDirty = false;
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m_lastState = state;
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QSGNode *rowNode = m_model->expanded() ? state->expandedRowRoot() : state->collapsedRowRoot();
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QSGNode *overlayNode = m_model->expanded() ? state->expandedOverlayRoot() :
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state->collapsedOverlayRoot();
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QMatrix4x4 matrix;
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matrix.translate((state->start() - m_zoomer->windowStart()) * spacing, 0, 0);
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matrix.scale(spacing / state->scale(), 1, 1);
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QSGTransformNode *transform = static_cast<QSGTransformNode *>(node);
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transform->setMatrix(matrix);
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if (node->firstChild() != rowNode || node->lastChild() != overlayNode) {
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node->removeAllChildNodes();
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node->appendChildNode(rowNode);
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node->appendChildNode(overlayNode);
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}
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return node;
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}
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void TimelineRenderer::mousePressEvent(QMouseEvent *event)
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{
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Q_UNUSED(event);
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}
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int TimelineRenderer::rowFromPosition(int y)
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{
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if (!m_model->expanded())
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return y / TimelineModel::defaultRowHeight();
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int ret = 0;
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for (int row = 0; row < m_model->expandedRowCount(); ++row) {
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y -= m_model->expandedRowHeight(row);
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if (y <= 0) return ret;
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++ret;
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}
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return ret;
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}
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void TimelineRenderer::mouseReleaseEvent(QMouseEvent *event)
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{
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Q_UNUSED(event);
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if (!m_model->isEmpty())
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manageClicked();
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}
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void TimelineRenderer::mouseMoveEvent(QMouseEvent *event)
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{
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event->setAccepted(false);
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}
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void TimelineRenderer::hoverMoveEvent(QHoverEvent *event)
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{
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Q_UNUSED(event);
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manageHovered(event->pos().x(), event->pos().y());
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if (m_currentSelection.eventIndex == -1)
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event->setAccepted(false);
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}
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void TimelineRenderer::manageClicked()
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{
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if (m_currentSelection.eventIndex != -1) {
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if (m_currentSelection.eventIndex == m_selectedItem)
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setSelectionLocked(!m_selectionLocked);
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else
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setSelectionLocked(true);
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// itemPressed() will trigger an update of the events and JavaScript views. Make sure the
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// correct event is already selected when that happens, to prevent confusion.
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setSelectedItem(m_currentSelection.eventIndex);
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emit itemPressed(m_currentSelection.eventIndex);
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} else {
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setSelectionLocked(false);
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setSelectedItem(-1);
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emit itemPressed(-1);
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}
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}
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void TimelineRenderer::manageHovered(int mouseX, int mouseY)
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{
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qint64 duration = m_zoomer->windowDuration();
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if (duration <= 0)
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return;
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// Make the "selected" area 3 pixels wide by adding/subtracting 1 to catch very narrow events.
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qint64 startTime = (mouseX - 1) * duration / width() + m_zoomer->windowStart();
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qint64 endTime = (mouseX + 1) * duration / width() + m_zoomer->windowStart();
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qint64 exactTime = (startTime + endTime) / 2;
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int row = rowFromPosition(mouseY);
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// already covered? Only recheck selectionLocked and make sure m_selectedItem is correct.
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if (m_currentSelection.eventIndex != -1 &&
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exactTime >= m_currentSelection.startTime &&
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exactTime < m_currentSelection.endTime &&
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row == m_currentSelection.row) {
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if (!m_selectionLocked)
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setSelectedItem(m_currentSelection.eventIndex);
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return;
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}
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// find if there's items in the time range
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int eventFrom = m_model->firstIndex(startTime);
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int eventTo = m_model->lastIndex(endTime);
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m_currentSelection.eventIndex = -1;
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if (eventFrom == -1 || eventTo < eventFrom || eventTo >= m_model->count())
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return;
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// find if we are in the right column
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qint64 bestOffset = std::numeric_limits<qint64>::max();
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for (int i=eventTo; i>=eventFrom; --i) {
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if ( m_model->row(i) == row) {
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// There can be small events that don't reach the cursor position after large events
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// that do but are in a different row.
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qint64 itemEnd = m_model->endTime(i);
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if (itemEnd < startTime)
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continue;
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qint64 itemStart = m_model->startTime(i);
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qint64 offset = qAbs(itemEnd - exactTime) + qAbs(itemStart - exactTime);
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if (offset < bestOffset) {
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// match
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m_currentSelection.eventIndex = i;
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m_currentSelection.startTime = itemStart;
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m_currentSelection.endTime = itemEnd;
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m_currentSelection.row = row;
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bestOffset = offset;
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}
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}
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}
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if (!m_selectionLocked && m_currentSelection.eventIndex != -1)
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setSelectedItem(m_currentSelection.eventIndex);
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}
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void TimelineRenderer::clearData()
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{
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resetCurrentSelection();
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setSelectedItem(-1);
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setSelectionLocked(true);
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}
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void TimelineRenderer::selectNextFromSelectionId(int selectionId)
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{
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setSelectedItem(m_model->nextItemBySelectionId(selectionId, m_zoomer->rangeStart(),
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m_selectedItem));
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}
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void TimelineRenderer::selectPrevFromSelectionId(int selectionId)
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{
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setSelectedItem(m_model->prevItemBySelectionId(selectionId, m_zoomer->rangeStart(),
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m_selectedItem));
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}
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void TimelineRenderer::setModelDirty()
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{
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m_modelDirty = true;
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update();
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}
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void TimelineRenderer::setRowHeightsDirty()
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{
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m_rowHeightsDirty = true;
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update();
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}
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void TimelineRenderer::setNotesDirty()
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{
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m_notesDirty = true;
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update();
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}
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void TimelineRenderer::setRowCountsDirty()
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{
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m_rowCountsDirty = true;
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}
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