main.cpp 17.31 KiB
/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the tools applications of the Qt Toolkit.
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** 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.
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** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
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****************************************************************************/
#include <QtCore/qdebug.h>
#include <QtCore/qabstractanimation.h>
#include <QtWidgets/qapplication.h>
#include <QtDeclarative/qdeclarative.h>
#include <QtDeclarative/qdeclarativeengine.h>
#include <QtDeclarative/qdeclarativecomponent.h>
#include <QtQuick1/qdeclarativeview.h>
#include <QtCore/qdir.h>
#include <QtWidgets/QFormLayout>
#include <QtWidgets/QComboBox>
#include <QtWidgets/QCheckBox>
#include <QtWidgets/QDialog>
#include <QtWidgets/QDialogButtonBox>
#include <QtWidgets/QFileDialog>
#include <QtWidgets/QGraphicsView>
#include <QtDeclarative/qdeclarativecontext.h>
// ### This should be private API
#include <qsgitem.h>
#include <qsgview.h>
#define QT_NO_SCENEGRAPHITEM
#ifndef QT_NO_SCENEGRAPHITEM
#include "scenegraphitem.h"
#endif
#include <QtCore/qmath.h>
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#ifdef QML_RUNTIME_TESTING class RenderStatistics { public: static void updateStats(); static void printTotalStats(); private: static QVector<qreal> timePerFrame; static QVector<int> timesPerFrames; }; QVector<qreal> RenderStatistics::timePerFrame; QVector<int> RenderStatistics::timesPerFrames; void RenderStatistics::updateStats() { static QTime time; static int frames; static int lastTime; if (frames == 0) { time.start(); } else { int elapsed = time.elapsed(); timesPerFrames.append(elapsed - lastTime); lastTime = elapsed; if (elapsed > 5000) { qreal avgtime = elapsed / (qreal) frames; qreal var = 0; for (int i = 0; i < timesPerFrames.size(); ++i) { qreal diff = timesPerFrames.at(i) - avgtime; var += diff * diff; } var /= timesPerFrames.size(); qDebug("Average time per frame: %f ms (%i fps), std.dev: %f ms", avgtime, qRound(1000. / avgtime), qSqrt(var)); timePerFrame.append(avgtime); timesPerFrames.clear(); time.start(); lastTime = 0; frames = 0; } } ++frames; } void RenderStatistics::printTotalStats() { int count = timePerFrame.count(); if (count == 0) return; qreal minTime = 0; qreal maxTime = 0; qreal avg = 0; for (int i = 0; i < count; ++i) { minTime = minTime == 0 ? timePerFrame.at(i) : qMin(minTime, timePerFrame.at(i)); maxTime = qMax(maxTime, timePerFrame.at(i)); avg += timePerFrame.at(i); } avg /= count; qDebug(" "); qDebug("----- Statistics -----"); qDebug("Average time per frame: %f ms (%i fps)", avg, qRound(1000. / avg)); qDebug("Best time per frame: %f ms (%i fps)", minTime, int(1000 / minTime)); qDebug("Worst time per frame: %f ms (%i fps)", maxTime, int(1000 / maxTime));
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qDebug("----------------------"); qDebug(" "); } #endif class MyQSGView : public QSGView { public: MyQSGView() : QSGView() { setResizeMode(QSGView::SizeRootObjectToView); } }; class MyDeclarativeView: public QDeclarativeView { public: MyDeclarativeView(QWidget *parent = 0) : QDeclarativeView(parent) { setResizeMode(QDeclarativeView::SizeRootObjectToView); } }; #ifndef QT_NO_SCENEGRAPHITEM class MyGraphicsView: public QGraphicsView { public: MyGraphicsView(bool clip, QWidget *parent = 0) : QGraphicsView(parent) { setViewport(new QGLWidget(getFormat())); setScene(&scene); scene.addItem(&item); item.setFlag(QGraphicsItem::ItemClipsToShape, clip); QGraphicsTextItem *text; text = scene.addText(QLatin1String("Scene graph on graphics view."), QFont(QLatin1String("Times"), 10)); text->setX(5); text->setY(5); text->setDefaultTextColor(Qt::black); text = scene.addText(QLatin1String("Scene graph on graphics view."), QFont(QLatin1String("Times"), 10)); text->setX(4); text->setY(4); text->setDefaultTextColor(Qt::yellow); } SceneGraphItem *sceneGraphItem() { return &item; } protected: void paintEvent(QPaintEvent *event) { QGraphicsView::paintEvent(event); #ifdef QML_RUNTIME_TESTING RenderStatistics::updateStats(); #endif static bool continuousUpdate = qApp->arguments().contains("--continuous-update"); if (continuousUpdate) QGraphicsView::scene()->update(); } QGraphicsScene scene; SceneGraphItem item; }; #endif struct Options { Options() : originalQml(false) , originalQmlRaster(false)
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, maximized(false) , fullscreen(false) , scenegraphOnGraphicsview(false) , clip(false) , versionDetection(true) , vsync(true) { } QUrl file; bool originalQml; bool originalQmlRaster; bool maximized; bool fullscreen; bool scenegraphOnGraphicsview; bool clip; bool versionDetection; bool vsync; }; #if defined(QMLSCENE_BUNDLE) Q_DECLARE_METATYPE(QFileInfo); QFileInfoList findQmlFiles(const QString &dirName) { QDir dir(dirName); QFileInfoList ret; if (dir.exists()) { QFileInfoList fileInfos = dir.entryInfoList(QStringList() << "*.qml", QDir::Files | QDir::AllDirs | QDir::NoDotAndDotDot); foreach (QFileInfo fileInfo, fileInfos) { if (fileInfo.isDir()) ret += findQmlFiles(fileInfo.filePath()); else if (fileInfo.fileName().length() > 0 && fileInfo.fileName().at(0).isLower()) ret.append(fileInfo); } } return ret; } static int displayOptionsDialog(Options *options) { QDialog dialog; QFormLayout *layout = new QFormLayout(&dialog); QComboBox *qmlFileComboBox = new QComboBox(&dialog); QFileInfoList fileInfos = findQmlFiles(":/bundle") + findQmlFiles("./qmlscene-resources"); foreach (QFileInfo fileInfo, fileInfos) qmlFileComboBox->addItem(fileInfo.dir().dirName() + "/" + fileInfo.fileName(), QVariant::fromValue(fileInfo)); QCheckBox *originalCheckBox = new QCheckBox(&dialog); originalCheckBox->setText("Use original QML viewer"); originalCheckBox->setChecked(options->originalQml); QCheckBox *fullscreenCheckBox = new QCheckBox(&dialog); fullscreenCheckBox->setText("Start fullscreen"); fullscreenCheckBox->setChecked(options->fullscreen); QCheckBox *maximizedCheckBox = new QCheckBox(&dialog); maximizedCheckBox->setText("Start maximized"); maximizedCheckBox->setChecked(options->maximized); QDialogButtonBox *buttonBox = new QDialogButtonBox(QDialogButtonBox::Ok | QDialogButtonBox::Cancel, Qt::Horizontal, &dialog); QObject::connect(buttonBox, SIGNAL(accepted()), &dialog, SLOT(accept()));
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QObject::connect(buttonBox, SIGNAL(rejected()), &dialog, SLOT(reject())); layout->addRow("Qml file:", qmlFileComboBox); layout->addWidget(originalCheckBox); layout->addWidget(maximizedCheckBox); layout->addWidget(fullscreenCheckBox); layout->addWidget(buttonBox); int result = dialog.exec(); if (result == QDialog::Accepted) { QVariant variant = qmlFileComboBox->itemData(qmlFileComboBox->currentIndex()); QFileInfo fileInfo = variant.value<QFileInfo>(); if (fileInfo.canonicalFilePath().startsWith(":")) options->file = QUrl("qrc" + fileInfo.canonicalFilePath()); else options->file = QUrl::fromLocalFile(fileInfo.canonicalFilePath()); options->originalQml = originalCheckBox->isChecked(); options->maximized = maximizedCheckBox->isChecked(); options->fullscreen = fullscreenCheckBox->isChecked(); } return result; } #endif static void checkAndAdaptVersion(const QUrl &url) { if (!qgetenv("QMLSCENE_IMPORT_NAME").isEmpty()) { return; } QString fileName = url.toLocalFile(); if (fileName.isEmpty()) return; QFile f(fileName); if (!f.open(QFile::ReadOnly | QFile::Text)) { qWarning("qmlscene: failed to check version of file '%s', could not open...", qPrintable(fileName)); return; } QRegExp quick1("^\\s*import +QtQuick +1\\."); QRegExp quick2("^\\s*import +QtQuick +2\\."); QRegExp qt47("^\\s*import +Qt +4\\.7"); QString envToWrite; QString compat; QTextStream stream(&f); bool codeFound= false; while (!codeFound) { QString line = stream.readLine(); if (line.contains("{")) codeFound = true; if (envToWrite.isEmpty() && quick1.indexIn(line) >= 0) { envToWrite = QLatin1String("quick1"); compat = QLatin1String("QtQuick 1.0"); } else if (envToWrite.isEmpty() && qt47.indexIn(line) >= 0) { envToWrite = QLatin1String("qt"); compat = QLatin1String("Qt 4.7"); } else if (quick2.indexIn(line) >= 0) { envToWrite.clear(); compat.clear(); break; } } if (!envToWrite.isEmpty()) { qWarning("qmlscene: Autodetecting compatibility import \"%s\"...", qPrintable(compat));
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if (qgetenv("QMLSCENE_IMPORT_NAME").isEmpty()) qputenv("QMLSCENE_IMPORT_NAME", envToWrite.toLatin1().constData()); } } static void displayFileDialog(Options *options) { QString fileName = QFileDialog::getOpenFileName(0, "Open QML file", QString(), "QML Files (*.qml)"); if (!fileName.isEmpty()) { QFileInfo fi(fileName); options->file = QUrl::fromLocalFile(fi.canonicalFilePath()); } } static void loadDummyDataFiles(QDeclarativeEngine &engine, const QString& directory) { QDir dir(directory+"/dummydata", "*.qml"); QStringList list = dir.entryList(); for (int i = 0; i < list.size(); ++i) { QString qml = list.at(i); QFile f(dir.filePath(qml)); f.open(QIODevice::ReadOnly); QByteArray data = f.readAll(); QDeclarativeComponent comp(&engine); comp.setData(data, QUrl()); QObject *dummyData = comp.create(); if(comp.isError()) { QList<QDeclarativeError> errors = comp.errors(); foreach (const QDeclarativeError &error, errors) { qWarning() << error; } } if (dummyData) { qWarning() << "Loaded dummy data:" << dir.filePath(qml); qml.truncate(qml.length()-4); engine.rootContext()->setContextProperty(qml, dummyData); dummyData->setParent(&engine); } } } static void usage() { qWarning("Usage: qmlscene [options] <filename>"); qWarning(" "); qWarning(" options:"); qWarning(" --maximized ............................... run maximized"); qWarning(" --fullscreen .............................. run fullscreen"); qWarning(" --original-qml ............................ run using QGraphicsView instead of scenegraph (OpenGL engine)"); qWarning(" --original-qml-raster ..................... run using QGraphicsView instead of scenegraph (Raster engine)"); qWarning(" --no-multisample .......................... Disable multisampling (anti-aliasing)"); qWarning(" --continuous-update ....................... Continuously render the scene"); qWarning(" --nonblocking-swap ........................ Do not wait for v-sync to swap buffers"); qWarning(" --stereo .................................. Enable stereo on the GL context"); #ifndef QT_NO_SCENEGRAPHITEM qWarning(" --sg-on-gv [--clip] ....................... Scenegraph on graphicsview (and clip to item)"); #endif qWarning(" --no-version-detection .................... Do not try to detect the version of the .qml file"); qWarning(" --no-vsync-animations ..................... Do not use vsync based animations"); qWarning(" "); exit(1); } int main(int argc, char ** argv) { #ifdef Q_WS_X11 QApplication::setAttribute(Qt::AA_X11InitThreads);
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#endif Options options; QStringList imports; for (int i = 1; i < argc; ++i) { if (*argv[i] != '-' && QFileInfo(QFile::decodeName(argv[i])).exists()) { options.file = QUrl::fromLocalFile(argv[i]); } else { const QString lowerArgument = QString::fromLatin1(argv[i]).toLower(); if (lowerArgument == QLatin1String("--original-qml")) options.originalQml = true; else if (lowerArgument == QLatin1String("--original-qml-raster")) options.originalQmlRaster = true; else if (lowerArgument == QLatin1String("--maximized")) options.maximized = true; else if (lowerArgument == QLatin1String("--fullscreen")) options.fullscreen = true; else if (lowerArgument == QLatin1String("--sg-on-gv")) options.scenegraphOnGraphicsview = true; else if (lowerArgument == QLatin1String("--clip")) options.clip = true; else if (lowerArgument == QLatin1String("--no-version-detection")) options.versionDetection = false; else if (lowerArgument == QLatin1String("-i") && i + 1 < argc) imports.append(QString::fromLatin1(argv[++i])); else if (lowerArgument == QLatin1String("--no-vsync-animations")) options.vsync = false; else if (lowerArgument == QLatin1String("--help") || lowerArgument == QLatin1String("-help") || lowerArgument == QLatin1String("--h") || lowerArgument == QLatin1String("-h")) usage(); } } QApplication::setGraphicsSystem("raster"); QApplication app(argc, argv); app.setApplicationName("QtQmlViewer"); app.setOrganizationName("Nokia"); app.setOrganizationDomain("nokia.com"); if (options.file.isEmpty()) #if defined(QMLSCENE_BUNDLE) displayOptionsDialog(&options); #else displayFileDialog(&options); #endif QWindow *window = 0; QDeclarativeEngine *engine = 0; int exitCode = 0; if (!options.file.isEmpty()) { #ifndef QT_NO_SCENEGRAPHITEM if (options.scenegraphOnGraphicsview) { MyGraphicsView *gvView = new MyGraphicsView(options.clip); SceneGraphItem *item = gvView->sceneGraphItem(); engine = item->engine(); for (int i = 0; i < imports.size(); ++i) engine->addImportPath(imports.at(i)); view = gvView; if (options.file.isLocalFile()) { QFileInfo fi(options.file.toLocalFile()); loadDummyDataFiles(*engine, fi.path()); } item->setSource(options.file); } else
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#endif if (options.versionDetection) checkAndAdaptVersion(options.file); QSGView *qxView = new MyQSGView(); qxView->setVSyncAnimations(options.vsync); engine = qxView->engine(); for (int i = 0; i < imports.size(); ++i) engine->addImportPath(imports.at(i)); window = qxView; if (options.file.isLocalFile()) { QFileInfo fi(options.file.toLocalFile()); loadDummyDataFiles(*engine, fi.path()); } qxView->setSource(options.file); QObject::connect(engine, SIGNAL(quit()), QCoreApplication::instance(), SLOT(quit())); window->setWindowFlags(Qt::Window | Qt::WindowSystemMenuHint | Qt::WindowTitleHint | Qt::WindowMinMaxButtonsHint | Qt::WindowCloseButtonHint); if (options.fullscreen) window->showFullScreen(); else if (options.maximized) window->showMaximized(); else window->show(); #ifdef Q_WS_MAC window->raise(); #endif exitCode = app.exec(); delete window; #ifdef QML_RUNTIME_TESTING RenderStatistics::printTotalStats(); #endif } return exitCode; }