subsurface/subsurface-helper.cpp
Berthold Stoeger 8577b00cb7 core: add class that collects global objects to be deleted on exit
We have a prevailing problem with global QObjects defined as
static global variables. These get destructed after main()
exits, which means that the QApplication object does not
exist anymore. This more often than not leads to crashes.

In a quick search I didn't find a mechanism to register
objects for deletion with QApplication. Therefore, let's
do our own list of global objects that get destructed
before destroying the QApplication.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2022-03-16 13:06:06 -07:00

235 lines
7.8 KiB
C++

// SPDX-License-Identifier: GPL-2.0
#include <QQmlEngine>
#include <QQuickItem>
#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
#include "map-widget/qmlmapwidgethelper.h"
#include "qt-models/maplocationmodel.h"
#endif
#include "stats/statsview.h"
#include "core/globals.h"
#include "core/qt-gui.h"
#include "core/settings/qPref.h"
#include "core/ssrf.h"
#ifdef SUBSURFACE_MOBILE
#include <QApplication>
#include <QQmlApplicationEngine>
#include <QQmlContext>
#include "mobile-widgets/themeinterface.h"
#include "mobile-widgets/qmlmanager.h"
#include "mobile-widgets/qmlinterface.h"
#include "mobile-widgets/statsmanager.h"
#include "stats/chartlistmodel.h"
#include "qt-models/divesummarymodel.h"
#include "qt-models/messagehandlermodel.h"
#include "qt-models/mobilelistmodel.h"
#include "profile-widget/qmlprofile.h"
#include "core/downloadfromdcthread.h"
#include "core/subsurfacestartup.h" // for testqml
#include "core/metrics.h"
#include "qt-models/diveimportedmodel.h"
#else
#include "desktop-widgets/mainwindow.h"
#endif
#if defined(Q_OS_ANDROID)
QString getAndroidHWInfo(); // from android.cpp
#include <QApplication>
#include <QFontDatabase>
#endif /* Q_OS_ANDROID */
QObject *qqWindowObject = NULL;
// Forward declaration
static void register_qml_types(QQmlEngine *);
static void register_meta_types();
#ifdef SUBSURFACE_MOBILE
#include <QtPlugin>
Q_IMPORT_PLUGIN(KirigamiPlugin)
#endif
void init_ui()
{
init_qt_late();
register_meta_types();
#ifndef SUBSURFACE_MOBILE
register_qml_types(NULL);
MainWindow *window = new MainWindow();
window->setTitle();
#endif // SUBSURFACE_MOBILE
}
void exit_ui()
{
#ifndef SUBSURFACE_MOBILE
delete MainWindow::instance();
#endif // SUBSURFACE_MOBILE
free_globals();
free((void *)existing_filename);
}
#ifdef SUBSURFACE_MOBILE
void run_mobile_ui(double initial_font_size)
{
#if defined(Q_OS_ANDROID)
// work around an odd interaction between the OnePlus flavor of Android and Qt font handling
if (getAndroidHWInfo().contains("/OnePlus/")) {
QFontInfo qfi(defaultModelFont());
double basePointSize = qfi.pointSize();
QFontDatabase db;
int id = QFontDatabase::addApplicationFont(":/fonts/Roboto-Regular.ttf");
QStringList fontFamilies = QFontDatabase::applicationFontFamilies(id);
if (fontFamilies.count() > 0) {
QString family = fontFamilies.at(0);
QFont newDefaultFont;
newDefaultFont.setFamily(family);
newDefaultFont.setPointSize(basePointSize);
(static_cast<QApplication *>(QCoreApplication::instance()))->setFont(newDefaultFont);
qDebug() << "Detected OnePlus device, trying to force bundled font" << family;
QFont defaultFont = (static_cast<QApplication *>(QCoreApplication::instance()))->font();
qDebug() << "Qt reports default font is set as" << defaultFont.family();
} else {
qDebug() << "Detected OnePlus device, but can't determine font family used";
}
}
#endif
QScreen *appScreen = QApplication::screens().at(0);
int availableScreenWidth = appScreen->availableSize().width();
QQmlApplicationEngine engine;
QQmlContext *ctxt = engine.rootContext();
// Register qml interface classes
QMLInterface::setup(ctxt);
register_qml_types(&engine);
#if defined(__APPLE__) && !defined(Q_OS_IOS)
// when running the QML UI on a Mac the deployment of the QML Components seems
// to fail and the search path for the components is rather odd - simply the
// same directory the executable was started from <bundle>/Contents/MacOS/
// To work around this we need to manually copy the components at install time
// to Contents/Frameworks/qml and make sure that we add the correct import path
const QStringList importPathList = engine.importPathList();
for (QString importPath: importPathList) {
if (importPath.contains("MacOS"))
engine.addImportPath(importPath.replace("MacOS", "Frameworks"));
}
#endif // __APPLE__ not Q_OS_IOS
// this is frustrating, but we appear to need different import paths on different OSs
engine.addImportPath(":");
engine.addImportPath("qrc://imports");
ctxt->setContextProperty("vendorList", vendorList);
ctxt->setContextProperty("swipeModel", MobileModels::instance()->swipeModel());
ctxt->setContextProperty("diveModel", MobileModels::instance()->listModel());
set_non_bt_addresses();
// we need to setup the initial font size before the QML UI is instantiated
ThemeInterface *themeInterface = ThemeInterface::instance();
themeInterface->setInitialFontSize(initial_font_size);
ctxt->setContextProperty("connectionListModel", &connectionListModel);
ctxt->setContextProperty("logModel", MessageHandlerModel::self());
ctxt->setContextProperty("subsurfaceTheme", themeInterface);
qmlRegisterUncreatableType<QMLManager>("org.subsurfacedivelog.mobile",1,0,"ExportType","Enum is not a type");
#ifdef SUBSURFACE_MOBILE_DESKTOP
if (testqml) {
QString fileLoad(testqml);
fileLoad += "/main.qml";
engine.load(QUrl(fileLoad));
} else {
engine.load(QUrl(QStringLiteral("qrc:///qml/main.qml")));
}
#else
engine.load(QUrl(QStringLiteral("qrc:///qml/main.qml")));
#endif
qDebug() << "loaded main.qml";
qqWindowObject = engine.rootObjects().value(0);
if (!qqWindowObject) {
fprintf(stderr, "can't create window object\n");
exit(1);
}
QQuickWindow *qml_window = qobject_cast<QQuickWindow *>(qqWindowObject);
qml_window->setIcon(QIcon(":subsurface-mobile-icon"));
qDebug() << "qqwindow devicePixelRatio" << qml_window->devicePixelRatio() << qml_window->screen()->devicePixelRatio();
QScreen *screen = qml_window->screen();
int qmlWW = qml_window->width();
int qmlSW = screen->size().width();
qDebug() << "qml_window reports width as" << qmlWW << "associated screen width" << qmlSW << "Qt screen reports width as" << availableScreenWidth;
QObject::connect(qml_window, &QQuickWindow::screenChanged, QMLManager::instance(), &QMLManager::screenChanged);
QMLManager *manager = QMLManager::instance();
manager->setDevicePixelRatio(qml_window->devicePixelRatio(), qml_window->screen());
manager->qmlWindow = qqWindowObject;
manager->screenChanged(screen);
qDebug() << "qqwindow screen has ldpi/pdpi" << screen->logicalDotsPerInch() << screen->physicalDotsPerInch();
#if !defined(Q_OS_ANDROID) && !defined(Q_OS_IOS)
int width = 800;
int height = 1200;
if (qEnvironmentVariableIsSet("SUBSURFACE_MOBILE_WIDTH")) {
bool ok;
int width_override = qEnvironmentVariableIntValue("SUBSURFACE_MOBILE_WIDTH", &ok);
if (ok) {
width = width_override;
qDebug() << "overriding window width:" << width;
}
}
if (qEnvironmentVariableIsSet("SUBSURFACE_MOBILE_HEIGHT")) {
bool ok;
int height_override = qEnvironmentVariableIntValue("SUBSURFACE_MOBILE_HEIGHT", &ok);
if (ok) {
height = height_override;
qDebug() << "overriding window height:" << height;
}
}
qml_window->setHeight(height);
qml_window->setWidth(width);
#endif // not Q_OS_ANDROID and not Q_OS_IOS
qml_window->show();
qApp->exec();
}
#else // SUBSURFACE_MOBILE
// just run the desktop UI
void run_ui()
{
MainWindow::instance()->show();
qApp->exec();
}
#endif // SUBSURFACE_MOBILE
Q_DECLARE_METATYPE(duration_t)
static void register_meta_types()
{
qRegisterMetaType<duration_t>();
}
template <typename T>
static void register_qml_type(const char *name)
{
if(qmlRegisterType<T>("org.subsurfacedivelog.mobile", 1, 0, name) < 0)
qWarning("ERROR: Cannot register %s, QML will not work!!", name);
}
static void register_qml_types(QQmlEngine *engine)
{
// register qPref*
qPref::registerQML(engine);
#ifdef SUBSURFACE_MOBILE
register_qml_type<QMLManager>("QMLManager");
register_qml_type<StatsManager>("StatsManager");
register_qml_type<QMLProfile>("QMLProfile");
register_qml_type<DiveImportedModel>("DCImportModel");
register_qml_type<DiveSummaryModel>("DiveSummaryModel");
register_qml_type<ChartListModel>("ChartListModel");
#endif // not SUBSURFACE_MOBILE
#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
register_qml_type<MapWidgetHelper>("MapWidgetHelper");
register_qml_type<MapLocationModel>("MapLocationModel");
#endif
register_qml_type<StatsView>("StatsView");
}