void Geolocation::cancelAllRequests()
{
auto copy = copyToVector(m_oneShots);
cancelRequests(copy);
m_watchers.getNotifiersVector(copy);
cancelRequests(copy);
}
void Geolocation::cancelAllRequests() {
GeoNotifierVector copy;
copyToVector(m_oneShots, copy);
cancelRequests(copy);
m_watchers.getNotifiersVector(copy);
cancelRequests(copy);
}
void MapViewer::initialize()
{
if (!m_renderer && !m_fetcher) {
// Here the TileRenderer is constructed first to target the MapViewer Qwindow
// surface, and the TileFetcher is construted to share the same GL context
// See the GLWorker constructors for details
m_renderer = new TileRenderer(m_config, this);
m_fetcher = new TileFetcher(m_config, *m_renderer);
// connect the renderer tile request signal to the fetcher tile request slot
connect(m_renderer, SIGNAL(requestTile(const TileIndex&)),
m_fetcher, SLOT(tileRequest(const TileIndex&)));
// connect the tile fetcher response signal to the tile renderer reposnse slot
connect(m_fetcher, SIGNAL(responseTile(TileImage*)),
m_renderer, SLOT(tileResponse(TileImage*)));
// connect the signal to cancel outstanding tile requests to the fetcher slot
connect(this, SIGNAL(cancelRequests()), m_fetcher, SIGNAL(cancelRequests()));
// connect the renderer delete tile signal to the tile fetcher slot
connect(m_renderer, SIGNAL(deleteTile(TileImage*)),
m_fetcher, SLOT(deleteTile(TileImage*)));
// start the worker threads for these objects
m_renderer->start();
m_fetcher->start();
}
}
void MapViewer::mouseDoubleClickEvent(QMouseEvent * event)
{
const QSize& size = m_render_state.mapSize();
m_map_center += (event->pos() - QPoint(size.width() / 2, size.height() / 2));
// Here a left button double click zoom in, a right button zooms out
if (event->buttons() & Qt::LeftButton) {
// Zoom in
m_render_state.setZoom(std::min(m_render_state.zoom() + 1, m_config.max_zoom));
if (m_render_state.zoomedIn()) {
// only scale the map center coordinate if we zoomed in
m_map_center = QPoint(m_map_center.x() * 2, m_map_center.y() * 2);
}
} else if (event->buttons() & Qt::RightButton) {
// Zoom out
m_render_state.setZoom(std::max(m_render_state.zoom() - 1, m_config.min_zoom));
if (m_render_state.zoomedOut()) {
// only scale the map center coordinate if we zoomed out
m_map_center = QPoint(m_map_center.x() / 2, m_map_center.y() / 2);
}
}
// emit a signal to cancel outstanding tile requests since we are moving to a new
// zoom level in the map. This allows the network layer to immediately start
// downloading map tiles for the current level.
emit cancelRequests();
// A zoom operation changes the map center in pixel coordinates because the
// center is defined within the pixel spae of a specific zoom level
QRect bounds(m_map_center.x() - size.width() / 2,
m_map_center.y() - size.height() / 2, size.width(), size.height());
m_render_state.setBounds(bounds);
m_renderer->setState(m_render_state);
}
mtpFileLoader::~mtpFileLoader() {
if (_localTaskId) {
Local::cancelTask(_localTaskId);
}
removeFromQueue();
cancelRequests();
}
CachedResourceLoader::~CachedResourceLoader()
{
m_document = 0;
cancelRequests();
clearPreloads();
DocumentResourceMap::iterator end = m_documentResources.end();
for (DocumentResourceMap::iterator it = m_documentResources.begin(); it != end; ++it)
it->second->setOwningCachedResourceLoader(0);
// Make sure no requests still point to this CachedResourceLoader
ASSERT(m_requestCount == 0);
}
void mtpFileLoader::cancel() {
cancelRequests();
type = mtpc_storage_fileUnknown;
complete = true;
if (fileIsOpen) {
file.close();
fileIsOpen = false;
file.remove();
}
data = QByteArray();
file.setFileName(QString());
emit progress(this);
loadNext();
}
void mtpFileLoader::finishFail() {
bool started = currentOffset(true) > 0;
cancelRequests();
type = mtpc_storage_fileUnknown;
complete = true;
if (fileIsOpen) {
file.close();
fileIsOpen = false;
file.remove();
}
data = QByteArray();
emit failed(this, started);
file.setFileName(fname = QString());
loadNext();
}
void FileLoader::cancel(bool fail) {
bool started = currentOffset(true) > 0;
cancelRequests();
_type = mtpc_storage_fileUnknown;
_complete = true;
if (_fileIsOpen) {
_file.close();
_fileIsOpen = false;
_file.remove();
}
_data = QByteArray();
if (fail) {
emit failed(this, started);
} else {
emit progress(this);
}
_fname = QString();
_file.setFileName(_fname);
loadNext();
}
mtpFileLoader::~mtpFileLoader() {
cancelRequests();
}
