Task Manager: source loading can be canceled

spatial maps: scroll-bar tracking disabled

Signed-off-by: benjamin.jakimow <benjamin.jakimow@geo.hu-berlin.de>

eotimeseriesviewer/mapviewscrollarea.py

@@ -29,6 +29,8 @@ class MapViewScrollArea(QScrollArea):
 
     def __init__(self, *args, **kwds):
         super(MapViewScrollArea, self).__init__(*args, **kwds)
+        self.horizontalScrollBar().setTracking(False)
+        self.verticalScrollBar().setTracking(False)
 
     def resizeEvent(self, event):
         super(MapViewScrollArea, self).resizeEvent(event)

eotimeseriesviewer/timeseries.py

@@ -980,13 +980,14 @@ def doLoadTimeSeriesSourcesTask(taskWrapper:QgsTask, dump):
     results = []
     n = len(sources)
     for i, source in enumerate(sources):
+        if taskWrapper.isCanceled():
+            return pickle.dumps(results)
         s = TimeSeriesSource.create(source)
         if isinstance(s, TimeSeriesSource):
             results.append(s)
 
         taskWrapper.setProgress(float(i+1) / n * 100.0)
-    resultDump = pickle.dumps(results)
-    return resultDump
+    return pickle.dumps(results)
     s = ""
 
 class TimeSeries(QAbstractItemModel):
@@ -1328,7 +1329,7 @@ class TimeSeries(QAbstractItemModel):
                 yield l[i:i + n]
 
         n = int(len(sources) / nWorkers)
-        for subset in chunks(sources, 10):
+        for subset in chunks(sources, 50):
         #for source in sources:
             #subset = [source]
             dump = pickle.dumps(subset)

eotimeseriesviewer/virtualrasters.py

@@ -219,7 +219,7 @@ class VRTRasterInputSourceBand(object):
             pathOrDataSet = gdal.Open(pathOrDataSet)
 
         if isinstance(pathOrDataSet, gdal.Dataset):
-            path = pathOrDataSet.GetFileList()[0]
+            path = pathOrDataSet.GetDescription()
             for b in range(pathOrDataSet.RasterCount):
                 srcBands.append(VRTRasterInputSourceBand(path, b))
         return srcBands