def preload_wms(urls):
"""
This method accesses a list of WMS servers and load their capability documents.
:param urls: List of URLs
"""
pdlg = QtWidgets.QProgressDialog("Preloading WMS servers...", "Cancel", 0, len(urls))
pdlg.reset()
pdlg.setValue(0)
pdlg.setModal(True)
pdlg.show()
QtWidgets.QApplication.processEvents()
for i, base_url in enumerate(urls):
pdlg.setValue(i)
QtWidgets.QApplication.processEvents()
# initialize login cache from config file, but do not overwrite existing keys
for key, value in config_loader(dataset="WMS_login", default={}).items():
if key not in constants.WMS_LOGIN_CACHE:
constants.WMS_LOGIN_CACHE[key] = value
username, password = constants.WMS_LOGIN_CACHE.get(base_url, (None, None))
try:
request = requests.get(base_url)
if pdlg.wasCanceled():
break
wms = wms_control.MSSWebMapService(request.url, version='1.1.1',
username=username, password=password)
wms_control.WMS_SERVICE_CACHE[wms.url] = wms
logging.info("Stored WMS info for '%s'", wms.url)
except Exception as ex:
logging.error("Error in preloading '%s': '%s'", type(ex), ex)
if pdlg.wasCanceled():
break
logging.debug("Contents of WMS_SERVICE_CACHE: %s", wms_control.WMS_SERVICE_CACHE.keys())
pdlg.close()
def __init__(self, settings=None):
"""
"""
super(MplTopViewCanvas, self).__init__()
self.waypoints_interactor = None
self.satoverpasspatch = []
self.kmloverlay = None
self.map = None
self.basename = "topview"
# Axes and image object to display the legend graphic, if available.
self.legax = None
self.legimg = None
# Set map appearance from parameter or, if not specified, to default
# values.
self.set_map_appearance(settings)
# Progress dialog to inform the user about map redraws.
self.pdlg = QtWidgets.QProgressDialog("redrawing map...", "Cancel", 0,
10, self)
self.pdlg.close()
