def setModelData(self, editor, model, index):
"""For the LOCATION column: If the user selects a location from the
combobox, get the corresponding coordinates.
"""
if index.column() == LOCATION:
loc = editor.currentText()
locations = config_loader(dataset='locations',
default=mss_default.locations)
if loc in locations:
lat, lon = locations[loc]
# Don't update distances and flight performance twice, hence
# set update=False for LAT.
model.setData(index.sibling(index.row(), LAT),
QtCore.QVariant(lat),
update=False)
model.setData(index.sibling(index.row(), LON),
QtCore.QVariant(lon))
else:
for wp in self.parent().waypoints_model.all_waypoint_data():
if loc == wp.location:
lat, lon = wp.lat, wp.lon
# Don't update distances and flight performance twice, hence
# set update=False for LAT.
model.setData(index.sibling(index.row(), LAT),
QtCore.QVariant(lat),
update=False)
model.setData(index.sibling(index.row(), LON),
QtCore.QVariant(lon))
model.setData(index, QtCore.QVariant(editor.currentText()))
else:
QtWidgets.QItemDelegate.setModelData(self, editor, model, index)
def data(self, index, role=QtCore.Qt.DisplayRole):
"""Return a data field at the given index (of type QModelIndex,
specifying row and column); overrides the corresponding
QAbstractTableModel method.
NOTE: Other roles (e.g. for display appearance) could be specified in
this method as well. Cf. the 'ships' example in chapter 14/16 of 'Rapid
GUI Programming with Python and Qt: The Definitive Guide to PyQt
Programming' (Mark Summerfield).
"""
waypoints = self.waypoints
if not index.isValid() or not (0 <= index.row() < len(waypoints)):
return QtCore.QVariant()
waypoint = waypoints[index.row()]
column = index.column()
if role == QtCore.Qt.DisplayRole:
if self.performance_settings["visible"]:
return QtCore.QVariant(TABLE_FULL[column][1](waypoint))
else:
return QtCore.QVariant(TABLE_SHORT[column][1](waypoint))
elif role == QtCore.Qt.TextAlignmentRole:
return QtCore.QVariant(
int(QtCore.Qt.AlignLeft | QtCore.Qt.AlignVCenter))
return QtCore.QVariant()
def button_release_move_callback(self, event):
"""Called whenever a mouse button is released.
"""
if not self.showverts or event.button != 1 or self._ind is None:
return
# Submit the new position to the data model.
vertices = self.pathpatch.get_path().wp_vertices
lon, lat = self.map(vertices[self._ind][0], vertices[self._ind][1],
inverse=True)
loc = find_location(lat, lon, tolerance=self.appropriate_epsilon_km(px=15))
if loc is not None:
lat, lon = loc[0]
self.waypoints_model.setData(
self.waypoints_model.createIndex(self._ind, ft.LAT), QtCore.QVariant(lat), update=False)
self.waypoints_model.setData(
self.waypoints_model.createIndex(self._ind, ft.LON), QtCore.QVariant(lon))
self._ind = None
def display_uploaded_img(self, file_path):
self.messageText.clear()
image_uri = QtCore.QUrl(f"file://{file_path}")
image = QtGui.QImage(QtGui.QImageReader(file_path).read())
self.messageText.document().addResource(
QtGui.QTextDocument.ImageResource, image_uri,
QtCore.QVariant(image))
img_width, img_height = self.get_img_dimensions(image)
image_format = QtGui.QTextImageFormat()
image_format.setWidth(img_width)
image_format.setHeight(img_height)
image_format.setName(image_uri.toString())
cursor = self.messageText.textCursor()
cursor.movePosition(QtGui.QTextCursor.End,
QtGui.QTextCursor.MoveAnchor)
cursor.insertImage(image_format)
self.messageText.setReadOnly(True)
def button_release_move_callback(self, event):
"""Called whenever a mouse button is released.
"""
if not self.showverts or event.button != 1:
return
if self._ind is not None:
# Submit the new pressure (the only value that can be edited
# in the side view) to the data model.
vertices = self.pathpatch.get_path().vertices
pressure = vertices[self._ind][1]
# http://doc.trolltech.com/4.3/qabstractitemmodel.html#createIndex
qt_index = self.waypoints_model.createIndex(self._ind, ft.PRESSURE)
# NOTE: QVariant cannot handle numpy.float64 types, hence convert
# to float().
self.waypoints_model.setData(qt_index, QtCore.QVariant(float(pressure / 100.)))
self._ind = None
def headerData(self, section, orientation, role=QtCore.Qt.DisplayRole):
"""Return data describing the table header; overrides the
corresponding QAbstractTableModel method.
"""
if role == QtCore.Qt.TextAlignmentRole:
if orientation == QtCore.Qt.Horizontal:
return QtCore.QVariant(
int(QtCore.Qt.AlignLeft | QtCore.Qt.AlignVCenter))
return QtCore.QVariant(
int(QtCore.Qt.AlignRight | QtCore.Qt.AlignVCenter))
if role != QtCore.Qt.DisplayRole:
return QtCore.QVariant()
# Return the names of the table columns.
if orientation == QtCore.Qt.Horizontal:
if self.performance_settings["visible"]:
return QtCore.QVariant(TABLE_FULL[section][0])
else:
return QtCore.QVariant(TABLE_SHORT[section][0])
# Table rows (waypoints) are labelled with their number (= number of
# waypoint).
return QtCore.QVariant(int(section))