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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#include <QScreen>
#include <QXmlStreamReader>
#include "fluidlauncher.h"
#define DEFAULT_INPUT_TIMEOUT 10000
#define SIZING_FACTOR_HEIGHT 6/10
#define SIZING_FACTOR_WIDTH 6/10
FluidLauncher::FluidLauncher(QStringList* args)
{
pictureFlowWidget = new PictureFlow();
slideShowWidget = new SlideShow();
inputTimer = new QTimer();
addWidget(pictureFlowWidget);
addWidget(slideShowWidget);
setCurrentWidget(pictureFlowWidget);
pictureFlowWidget->setFocus();
QRect screen_size = QGuiApplication::primaryScreen()->geometry();
QObject::connect(pictureFlowWidget, SIGNAL(itemActivated(int)), this, SLOT(launchApplication(int)));
QObject::connect(pictureFlowWidget, SIGNAL(inputReceived()), this, SLOT(resetInputTimeout()));
QObject::connect(slideShowWidget, SIGNAL(inputReceived()), this, SLOT(switchToLauncher()));
QObject::connect(inputTimer, SIGNAL(timeout()), this, SLOT(inputTimedout()));
inputTimer->setSingleShot(true);
inputTimer->setInterval(DEFAULT_INPUT_TIMEOUT);
const int h = screen_size.height() * SIZING_FACTOR_HEIGHT;
const int w = screen_size.width() * SIZING_FACTOR_WIDTH;
const int hh = qMin(h, w);
const int ww = hh / 3 * 2;
pictureFlowWidget->setSlideSize(QSize(ww, hh));
bool success;
int configIndex = args->indexOf("-config");
if ( (configIndex != -1) && (configIndex != args->count()-1) )
success = loadConfig(args->at(configIndex+1));
else
success = loadConfig(":/fluidlauncher/config.xml");
if (success) {
populatePictureFlow();
showFullScreen();
inputTimer->start();
} else {
pictureFlowWidget->setAttribute(Qt::WA_DeleteOnClose, true);
pictureFlowWidget->close();
}
}
FluidLauncher::~FluidLauncher()
{
delete pictureFlowWidget;
delete slideShowWidget;
}
bool FluidLauncher::loadConfig(QString configPath)
{
QFile xmlFile(configPath);
if (!xmlFile.exists() || (xmlFile.error() != QFile::NoError)) {
qDebug() << "ERROR: Unable to open config file " << configPath;
return false;
}
slideShowWidget->clearImages();
xmlFile.open(QIODevice::ReadOnly);
QXmlStreamReader reader(&xmlFile);
while (!reader.atEnd()) {
reader.readNext();
if (reader.isStartElement()) {
if (reader.name() == u"demos")
parseDemos(reader);
else if(reader.name() == u"slideshow")
parseSlideshow(reader);
}
}
if (reader.hasError()) {
qDebug() << QString("Error parsing %1 on line %2 column %3: \n%4")
.arg(configPath)
.arg(reader.lineNumber())
.arg(reader.columnNumber())
.arg(reader.errorString());
}
// Append an exit Item
DemoApplication* exitItem = new DemoApplication(QString(), QLatin1String("Exit Embedded Demo"), QString(), QStringList());
demoList.append(exitItem);
return true;
}
void FluidLauncher::parseDemos(QXmlStreamReader& reader)
{
while (!reader.atEnd()) {
reader.readNext();
if (reader.isStartElement() && reader.name() == u"example") {
QXmlStreamAttributes attrs = reader.attributes();
QStringView filename = attrs.value("filename");
if (!filename.isEmpty()) {
QStringView name = attrs.value("name");
QStringView image = attrs.value("image");
QStringView args = attrs.value("args");
DemoApplication* newDemo = new DemoApplication(
filename.toString(),
name.isEmpty() ? "Unnamed Demo" : name.toString(),
image.toString(),
args.toString().split(" "));
demoList.append(newDemo);
}
} else if(reader.isEndElement() && reader.name() == u"demos") {
return;
}
}
}
void FluidLauncher::parseSlideshow(QXmlStreamReader& reader)
{
QXmlStreamAttributes attrs = reader.attributes();
QStringView timeout = attrs.value("timeout");
bool valid;
if (!timeout.isEmpty()) {
int t = timeout.toString().toInt(&valid);
if (valid)
inputTimer->setInterval(t);
}
QStringView interval = attrs.value("interval");
if (!interval.isEmpty()) {
int i = interval.toString().toInt(&valid);
if (valid)
slideShowWidget->setSlideInterval(i);
}
while (!reader.atEnd()) {
reader.readNext();
if (reader.isStartElement()) {
QXmlStreamAttributes attrs = reader.attributes();
if (reader.name() == u"imagedir") {
QStringView dir = attrs.value("dir");
slideShowWidget->addImageDir(dir.toString());
} else if(reader.name() == u"image") {
QStringView image = attrs.value("image");
slideShowWidget->addImage(image.toString());
}
} else if(reader.isEndElement() && reader.name() == u"slideshow") {
return;
}
}
}
void FluidLauncher::populatePictureFlow()
{
pictureFlowWidget->setSlideCount(demoList.count());
for (int i=demoList.count()-1; i>=0; --i) {
const QImage image = demoList[i]->getImage();
if (!image.isNull())
pictureFlowWidget->setSlide(i, image);
pictureFlowWidget->setSlideCaption(i, demoList[i]->getCaption());
}
pictureFlowWidget->setCurrentSlide(demoList.count()/2);
}
void FluidLauncher::launchApplication(int index)
{
// NOTE: Clearing the caches will free up more memory for the demo but will cause
// a delay upon returning, as items are reloaded.
//pictureFlowWidget->clearCaches();
if (index == demoList.size() -1) {
qApp->quit();
return;
}
inputTimer->stop();
QObject::connect(demoList[index], SIGNAL(demoFinished()), this, SLOT(demoFinished()));
demoList[index]->launch();
}
void FluidLauncher::switchToLauncher()
{
slideShowWidget->stopShow();
inputTimer->start();
setCurrentWidget(pictureFlowWidget);
}
void FluidLauncher::resetInputTimeout()
{
if (inputTimer->isActive())
inputTimer->start();
}
void FluidLauncher::inputTimedout()
{
switchToSlideshow();
}
void FluidLauncher::switchToSlideshow()
{
inputTimer->stop();
slideShowWidget->startShow();
setCurrentWidget(slideShowWidget);
}
void FluidLauncher::demoFinished()
{
setCurrentWidget(pictureFlowWidget);
inputTimer->start();
// Bring the Fluidlauncher to the foreground to allow selecting another demo
raise();
activateWindow();
}
void FluidLauncher::changeEvent(QEvent* event)
{
if (event->type() == QEvent::ActivationChange) {
if (isActiveWindow()) {
if(currentWidget() == pictureFlowWidget) {
resetInputTimeout();
} else {
slideShowWidget->startShow();
}
} else {
inputTimer->stop();
slideShowWidget->stopShow();
}
}
QStackedWidget::changeEvent(event);
}
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