qiurui
/
qtdeclarative
mirror of https://github.com/qt/qtdeclarative.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
qtdeclarative/tools/qmlscene/main.cpp

562 lines
20 KiB
C++
Raw Blame History

/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the tools applications of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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.
**
** 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 file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtCore/qdebug.h>
#include <QtCore/qabstractanimation.h>
#include <QtCore/qdir.h>
#include <QtCore/qmath.h>
#include <QtCore/qdatetime.h>
#include <QtCore/qpointer.h>
#include <QtCore/qscopedpointer.h>
#include <QtGui/QGuiApplication>
#include <QtQml/qqml.h>
#include <QtQml/qqmlengine.h>
#include <QtQml/qqmlcomponent.h>
#include <QtQml/qqmlcontext.h>
#include <QtQuick/qquickitem.h>
#include <QtQuick/qquickview.h>
#include <private/qabstractanimation_p.h>
#include <private/qopenglcontext_p.h>
#ifdef QT_WIDGETS_LIB
#include <QtWidgets/QApplication>
#include <QtWidgets/QFileDialog>
#endif
#include <QtCore/QTranslator>
#include <QtCore/QLibraryInfo>
#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));
qDebug("----------------------");
qDebug(" ");
}
#endif
struct Options
{
Options()
: originalQml(false)
, originalQmlRaster(false)
, maximized(false)
, fullscreen(false)
, transparent(false)
, clip(false)
, versionDetection(true)
, slowAnimations(false)
, quitImmediately(false)
, resizeViewToRootItem(false)
, multisample(false)
, contextSharing(true)
{
}
QUrl file;
bool originalQml;
bool originalQmlRaster;
bool maximized;
bool fullscreen;
bool transparent;
bool scenegraphOnGraphicsview;
bool clip;
bool versionDetection;
bool slowAnimations;
bool quitImmediately;
bool resizeViewToRootItem;
bool multisample;
bool contextSharing;
QString translationFile;
};
#if defined(QMLSCENE_BUNDLE)
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()));
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 bool checkVersion(const QUrl &url)
{
if (!qgetenv("QMLSCENE_IMPORT_NAME").isEmpty())
qWarning("QMLSCENE_IMPORT_NAME is no longer supported.");
QString fileName = url.toLocalFile();
if (fileName.isEmpty()) {
qWarning("qmlscene: filename required.");
return false;
}
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 false;
}
QRegExp quick1("^\\s*import +QtQuick +1\\.\\w*");
QRegExp qt47("^\\s*import +Qt +4\\.7");
QTextStream stream(&f);
bool codeFound= false;
while (!codeFound) {
QString line = stream.readLine();
if (line.contains("{")) {
codeFound = true;
} else {
QString import;
if (quick1.indexIn(line) >= 0)
import = quick1.cap(0).trimmed();
else if (qt47.indexIn(line) >= 0)
import = qt47.cap(0).trimmed();
if (!import.isNull()) {
qWarning("qmlscene: '%s' is no longer supported.\n"
"Use qmlviewer to load file '%s'.",
qPrintable(import),
qPrintable(fileName));
return false;
}
}
}
return true;
}
static void displayFileDialog(Options *options)
{
#if defined(QT_WIDGETS_LIB) && !defined(QT_NO_FILEDIALOG)
QString fileName = QFileDialog::getOpenFileName(0, "Open QML file", QString(), "QML Files (*.qml)");
if (!fileName.isEmpty()) {
QFileInfo fi(fileName);
options->file = QUrl::fromLocalFile(fi.canonicalFilePath());
}
#else
Q_UNUSED(options);
qWarning("No filename specified...");
#endif
}
#ifndef QT_NO_TRANSLATION
static void loadTranslationFile(QTranslator &translator, const QString& directory)
{
translator.load(QLatin1String("qml_" )+QLocale::system().name(), directory + QLatin1String("/i18n"));
QCoreApplication::installTranslator(&translator);
}
#endif
static void loadDummyDataFiles(QQmlEngine &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);
QQmlComponent comp(&engine, dir.filePath(qml));
QObject *dummyData = comp.create();
if(comp.isError()) {
QList<QQmlError> errors = comp.errors();
foreach (const QQmlError &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(" --transparent ............................. Make the window transparent");
qWarning(" --multisample ............................. Enable multisampling (OpenGL anti-aliasing)");
qWarning(" --no-version-detection .................... Do not try to detect the version of the .qml file");
qWarning(" --slow-animations ......................... Run all animations in slow motion");
qWarning(" --resize-to-root .......................... Resize the window to the size of the root item");
qWarning(" --quit .................................... Quit immediately after starting");
qWarning(" --disable-context-sharing ................. Disable the use of a shared GL context for QtQuick Windows");
qWarning(" -I <path> ................................. Add <path> to the list of import paths");
qWarning(" -B <name> <file> .......................... Add a named bundle");
qWarning(" -translation <translationfile> ............ Set the language to run in");
qWarning(" ");
exit(1);
}
int main(int argc, char ** argv)
{
Options options;
QStringList imports;
QList<QPair<QString, QString> > bundles;
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("--maximized"))
options.maximized = true;
else if (lowerArgument == QLatin1String("--fullscreen"))
options.fullscreen = true;
else if (lowerArgument == QLatin1String("--transparent"))
options.transparent = true;
else if (lowerArgument == QLatin1String("--clip"))
options.clip = true;
else if (lowerArgument == QLatin1String("--no-version-detection"))
options.versionDetection = false;
else if (lowerArgument == QLatin1String("--slow-animations"))
options.slowAnimations = true;
else if (lowerArgument == QLatin1String("--quit"))
options.quitImmediately = true;
else if (lowerArgument == QLatin1String("-translation"))
options.translationFile = QLatin1String(argv[++i]);
else if (lowerArgument == QLatin1String("--resize-to-root"))
options.resizeViewToRootItem = true;
else if (lowerArgument == QLatin1String("--multisample"))
options.multisample = true;
else if (lowerArgument == QLatin1String("--disable-context-sharing"))
options.contextSharing = false;
else if (lowerArgument == QLatin1String("-i") && i + 1 < argc)
imports.append(QString::fromLatin1(argv[++i]));
else if (lowerArgument == QLatin1String("-b") && i + 2 < argc) {
QString name = QString::fromLatin1(argv[++i]);
QString file = QString::fromLatin1(argv[++i]);
bundles.append(qMakePair(name, file));
} else if (lowerArgument == QLatin1String("--help")
|| lowerArgument == QLatin1String("-help")
|| lowerArgument == QLatin1String("--h")
|| lowerArgument == QLatin1String("-h"))
usage();
}
}
#ifdef QT_WIDGETS_LIB
QApplication app(argc, argv);
#else
QGuiApplication app(argc, argv);
#endif
app.setApplicationName("QtQmlViewer");
app.setOrganizationName("Qt Project");
app.setOrganizationDomain("qt-project.org");
#ifndef QT_NO_TRANSLATION
QTranslator translator;
QTranslator qtTranslator;
QString sysLocale = QLocale::system().name();
if (translator.load(QLatin1String("qmlscene_") + sysLocale, QLibraryInfo::location(QLibraryInfo::TranslationsPath))) {
app.installTranslator(&translator);
if (qtTranslator.load(QLatin1String("qt_") + sysLocale, QLibraryInfo::location(QLibraryInfo::TranslationsPath))) {
app.installTranslator(&qtTranslator);
} else {
app.removeTranslator(&translator);
}
}
QTranslator qmlTranslator;
if (!options.translationFile.isEmpty()) {
if (qmlTranslator.load(options.translationFile)) {
app.installTranslator(&qmlTranslator);
} else {
qWarning() << "Could not load the translation file" << options.translationFile;
}
}
#endif
QUnifiedTimer::instance()->setSlowModeEnabled(options.slowAnimations);
if (options.file.isEmpty())
#if defined(QMLSCENE_BUNDLE)
displayOptionsDialog(&options);
#else
displayFileDialog(&options);
#endif
// QWebEngine needs a shared context in order for the GPU thread to
// upload textures.
QScopedPointer<QOpenGLContext> shareContext;
if (options.contextSharing) {
shareContext.reset(new QOpenGLContext);
shareContext->create();
QOpenGLContextPrivate::setGlobalShareContext(shareContext.data());
}
int exitCode = 0;
if (!options.file.isEmpty()) {
if (!options.versionDetection || checkVersion(options.file)) {
#ifndef QT_NO_TRANSLATION
QTranslator translator;
#endif
// TODO: as soon as the engine construction completes, the debug service is
// listening for connections. But actually we aren't ready to debug anything.
QQmlEngine engine;
QPointer<QQmlComponent> component = new QQmlComponent(&engine);
for (int i = 0; i < imports.size(); ++i)
engine.addImportPath(imports.at(i));
for (int i = 0; i < bundles.size(); ++i)
engine.addNamedBundle(bundles.at(i).first, bundles.at(i).second);
if (options.file.isLocalFile()) {
QFileInfo fi(options.file.toLocalFile());
#ifndef QT_NO_TRANSLATION
loadTranslationFile(translator, fi.path());
#endif
loadDummyDataFiles(engine, fi.path());
}
QObject::connect(&engine, SIGNAL(quit()), QCoreApplication::instance(), SLOT(quit()));
component->loadUrl(options.file);
if ( !component->isReady() ) {
qWarning("%s", qPrintable(component->errorString()));
return -1;
}
QObject *topLevel = component->create();
if (!topLevel && component->isError()) {
qWarning("%s", qPrintable(component->errorString()));
return -1;
}
QScopedPointer<QQuickWindow> window(qobject_cast<QQuickWindow *>(topLevel));
if (window) {
engine.setIncubationController(window->incubationController());
} else {
QQuickItem *contentItem = qobject_cast<QQuickItem *>(topLevel);
if (contentItem) {
QQuickView* qxView = new QQuickView(&engine, NULL);
window.reset(qxView);
// Set window default properties; the qml can still override them
QString oname = contentItem->objectName();
window->setTitle(oname.isEmpty() ? QString::fromLatin1("qmlscene") : QString::fromLatin1("qmlscene: ") + oname);
if (options.resizeViewToRootItem)
qxView->setResizeMode(QQuickView::SizeViewToRootObject);
else
qxView->setResizeMode(QQuickView::SizeRootObjectToView);
qxView->setContent(options.file, component, contentItem);
}
}
if (window) {
QSurfaceFormat surfaceFormat = window->requestedFormat();
if (options.multisample)
surfaceFormat.setSamples(16);
if (options.transparent) {
surfaceFormat.setAlphaBufferSize(8);
window->setClearBeforeRendering(true);
window->setColor(QColor(Qt::transparent));
window->setFlags(Qt::FramelessWindowHint);
}
window->setFormat(surfaceFormat);
if (window->flags() == Qt::Window) // Fix window flags unless set by QML.
window->setFlags(Qt::Window | Qt::WindowSystemMenuHint | Qt::WindowTitleHint | Qt::WindowMinMaxButtonsHint | Qt::WindowCloseButtonHint | Qt::WindowFullscreenButtonHint);
if (options.fullscreen)
window->showFullScreen();
else if (options.maximized)
window->showMaximized();
else if (!window->isVisible())
window->show();
}
if (options.quitImmediately)
QMetaObject::invokeMethod(QCoreApplication::instance(), "quit", Qt::QueuedConnection);
// Now would be a good time to inform the debug service to start listening.
exitCode = app.exec();
#ifdef QML_RUNTIME_TESTING
RenderStatistics::printTotalStats();
#endif
// Ready to exit. Notice that the component might be owned by
// QQuickView if one was created. That case is tracked by
// QPointer, so it is safe to delete the component here.
delete component;
}
}
return exitCode;
}
Reference in New Issue View Git Blame Copy Permalink