8843bebee2
A QQuickMapboxGLStyleProperty being a child of QQuickMapboxGLStyle assures that only properties associated with that particular style will reflect on the map - and that happens only when the style is the current set via style property.
121 lines
3.8 KiB
C++
121 lines
3.8 KiB
C++
#include "qquickmapboxglrenderer.hpp"
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#include <QMapboxGL>
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#include <QQuickMapboxGL>
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#include <QQuickMapboxGLStyle>
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#include <QSize>
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#include <QOpenGLFramebufferObject>
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#include <QOpenGLFramebufferObjectFormat>
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#include <QQuickWindow>
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QQuickMapboxGLRenderer::QQuickMapboxGLRenderer()
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{
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QMapbox::initializeGLExtensions();
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QMapboxGLSettings settings;
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settings.setAccessToken(qgetenv("MAPBOX_ACCESS_TOKEN"));
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settings.setCacheDatabasePath("/tmp/mbgl-cache.db");
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settings.setCacheDatabaseMaximumSize(20 * 1024 * 1024);
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settings.setViewportMode(QMapboxGLSettings::FlippedYViewport);
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m_map.reset(new QMapboxGL(nullptr, settings));
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connect(m_map.data(), SIGNAL(mapChanged(QMapboxGL::MapChange)), this, SLOT(onMapChanged(QMapboxGL::MapChange)));
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}
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QQuickMapboxGLRenderer::~QQuickMapboxGLRenderer()
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{
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}
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void QQuickMapboxGLRenderer::onMapChanged(QMapboxGL::MapChange change)
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{
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auto onMapChangeWillStartLoadingMap = [&]() {
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m_styleLoaded = false;
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};
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auto onMapChangeDidFinishLoadingMap = [&]() {
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m_styleLoaded = true;
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emit styleChanged();
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};
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switch (change) {
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case QMapboxGL::MapChangeWillStartLoadingMap:
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onMapChangeWillStartLoadingMap();
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break;
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case QMapboxGL::MapChangeDidFinishLoadingMap:
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onMapChangeDidFinishLoadingMap();
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break;
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default:
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break;
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}
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}
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QOpenGLFramebufferObject* QQuickMapboxGLRenderer::createFramebufferObject(const QSize &size)
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{
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m_map->resize(size);
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QOpenGLFramebufferObjectFormat format;
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format.setAttachment(QOpenGLFramebufferObject::CombinedDepthStencil);
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return new QOpenGLFramebufferObject(size, format);
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}
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void QQuickMapboxGLRenderer::render()
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{
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m_map->render();
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}
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void QQuickMapboxGLRenderer::synchronize(QQuickFramebufferObject *item)
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{
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if (!m_initialized) {
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auto qquickMapbox = static_cast<QQuickMapboxGL*>(item);
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QObject::connect(m_map.data(), &QMapboxGL::needsRendering, qquickMapbox, &QQuickMapboxGL::update);
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QObject::connect(this, &QQuickMapboxGLRenderer::centerChanged, qquickMapbox, &QQuickMapboxGL::setCenter);
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m_initialized = true;
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}
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auto quickMap = static_cast<QQuickMapboxGL*>(item);
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auto syncStatus = quickMap->swapSyncState();
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if (syncStatus & QQuickMapboxGL::CenterNeedsSync || syncStatus & QQuickMapboxGL::ZoomNeedsSync) {
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const auto& center = quickMap->center();
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m_map->setCoordinateZoom({ center.latitude(), center.longitude() }, quickMap->zoomLevel());
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}
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if (syncStatus & QQuickMapboxGL::StyleNeedsSync && quickMap->style()) {
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m_map->setStyleURL(quickMap->style()->url());
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m_styleLoaded = false;
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}
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if (syncStatus & QQuickMapboxGL::PanNeedsSync) {
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m_map->moveBy(quickMap->swapPan());
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emit centerChanged(QGeoCoordinate(m_map->latitude(), m_map->longitude()));
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}
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if (syncStatus & QQuickMapboxGL::BearingNeedsSync) {
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m_map->setBearing(quickMap->bearing());
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}
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if (syncStatus & QQuickMapboxGL::PitchNeedsSync) {
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m_map->setPitch(quickMap->pitch());
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}
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if (m_styleLoaded) {
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if (!quickMap->layoutPropertyChanges().empty()) {
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for (const auto& change: quickMap->layoutPropertyChanges()) {
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m_map->setLayoutProperty(change.value("layer").toString(), change.value("property").toString(), change.value("value"));
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}
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quickMap->layoutPropertyChanges().clear();
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}
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if (!quickMap->paintPropertyChanges().empty()) {
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for (const auto& change: quickMap->paintPropertyChanges()) {
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m_map->setPaintProperty(change.value("layer").toString(), change.value("property").toString(), change.value("value"), change.value("class").toString());
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}
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quickMap->paintPropertyChanges().clear();
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}
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}
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}
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