subsurface/subsurface-helper.cpp
Berthold Stoeger e7907c494f statistics: convert chart to QQuickItem
It turns out that the wrong base class was used for the chart.
QQuickWidget can only be used on desktop, not in a mobile UI.

Therefore, turn this into a QQuickItem and move the container
QQuickWidget into desktop-only code.

Currently, this code is insane: The chart is rendered onto a
QGraphicsScene (as it was before), which is then rendered into
a QImage, which is transformed into a QSGTexture, which is then
projected onto the device. This is performed on every mouse
move event, since these events in general change the position
of the info-box.

The plan is to slowly convert elements such as the info-box into
QQuickItems. Browsing the QtQuick documentation, this will
not be much fun.

Also note that the rendering currently tears, flickers and has
antialiasing artifacts, most likely owing to integer (QImage)
to floating point (QGraphicsScene, QQuickItem) conversion
problems. The data flow is
QGraphicsScene (float) -> QImage (int) -> QQuickItem (float).

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2021-01-10 15:16:52 -08:00

218 lines
7.5 KiB
C++

// SPDX-License-Identifier: GPL-2.0
#include <QQmlEngine>
#include <QQuickItem>
#include "map-widget/qmlmapwidgethelper.h"
#include "qt-models/maplocationmodel.h"
#include "stats/statsview.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 "qt-models/divesummarymodel.h"
#include "qt-models/gpslistmodel.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 "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((void *)existing_filename);
}
void run_ui()
{
#ifdef SUBSURFACE_MOBILE
#if defined(Q_OS_ANDROID)
// work around an odd interaction between the OnePlus flavor of Android and Qt font handling
if (getAndroidHWInfo().contains("/OnePlus/")) {
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);
(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");
QSortFilterProxyModel *gpsSortModel = new QSortFilterProxyModel(nullptr);
gpsSortModel->setSourceModel(GpsListModel::instance());
gpsSortModel->setDynamicSortFilter(true);
gpsSortModel->setSortRole(GpsListModel::GpsWhenRole);
gpsSortModel->sort(0, Qt::DescendingOrder);
ctxt->setContextProperty("gpsModel", gpsSortModel);
ctxt->setContextProperty("vendorList", vendorList);
ctxt->setContextProperty("swipeModel", MobileModels::instance()->swipeModel());
ctxt->setContextProperty("diveModel", MobileModels::instance()->listModel());
set_non_bt_addresses();
ctxt->setContextProperty("connectionListModel", &connectionListModel);
ctxt->setContextProperty("logModel", MessageHandlerModel::self());
ctxt->setContextProperty("subsurfaceTheme", ThemeInterface::instance());
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();
#else
MainWindow::instance()->show();
#endif // SUBSURFACE_MOBILE
qApp->exec();
}
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<QMLProfile>("QMLProfile");
register_qml_type<DiveImportedModel>("DCImportModel");
register_qml_type<DiveSummaryModel>("DiveSummaryModel");
#endif // not SUBSURFACE_MOBILE
register_qml_type<MapWidgetHelper>("MapWidgetHelper");
register_qml_type<MapLocationModel>("MapLocationModel");
register_qml_type<StatsView>("StatsView");
}