def delete_features(layer, features, text):
ids = features.keys()
if len(ids) == 0:
return
question = ('Do you want to delete all the following features with area %s' % text)
features_text = 'FID: area\n'
for fid, area in features.iteritems():
features_text += '%s: %s\n' % (fid, area)
mb = QMessageBox(
QMessageBox.Question,
'Confirm deletion',
question,
QMessageBox.Yes | QMessageBox.No)
mb.setDetailedText(features_text)
# mb.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
mb.setSizeGripEnabled(True)
if mb.exec_() == QMessageBox.Yes:
layer.startEditing()
layer.dataProvider().deleteFeatures( ids )
layer.commitChanges()
