class ImaerReaderDialogTest(unittest.TestCase):
"""Test dialog works."""
def setUp(self):
"""Runs before each test."""
self.dialog = ImaerReaderDialog(None)
def tearDown(self):
"""Runs after each test."""
self.dialog = None
def test_dialog_ok(self):
"""Test we can click OK."""
button = self.dialog.button_box.button(QDialogButtonBox.Ok)
button.click()
result = self.dialog.result()
self.assertEqual(result, QDialog.Accepted)
def test_dialog_cancel(self):
"""Test we can click cancel."""
button = self.dialog.button_box.button(QDialogButtonBox.Cancel)
button.click()
result = self.dialog.result()
self.assertEqual(result, QDialog.Rejected)
def __init__(self, iface):
"""Constructor.
:param iface: An interface instance that will be passed to this class
which provides the hook by which you can manipulate the QGIS
application at run time.
:type iface: QgsInterface
"""
# Save reference to the QGIS interface
self.iface = iface
# initialize plugin directory
#self.plugin_dir = os.path.dirname(os.path.abspath(__file__))
self.plugin_dir = os.path.dirname(__file__)
# initialize locale
locale = QSettings().value('locale/userLocale')[0:2]
locale_path = os.path.join(
self.plugin_dir,
'i18n',
'ImaerReader_{}.qm'.format(locale))
if os.path.exists(locale_path):
self.translator = QTranslator()
self.translator.load(locale_path)
if qVersion() > '4.3.3':
QCoreApplication.installTranslator(self.translator)
# Create the dialog (after translation) and keep reference
self.dlg = ImaerReaderDialog()
# add some necessary signal and slot communication as well as disable the save button for now
self.dlg.cancel_open_button_box.button(QDialogButtonBox.Open).setEnabled(False)
QObject.connect(self.dlg.fileBrowseButton, SIGNAL("clicked()"), self.chooseFile)
QObject.connect(self.dlg.gmlFileNameBox, SIGNAL("textChanged(QString)"), self.gmlFileNameBoxChanged)
QObject.connect(self.dlg.help_pushButton, SIGNAL("clicked()"), self.showHelp)
self.dlg.workerEnd.connect(self.zoomToLayers)
# Declare instance attributes
self.actions = []
self.menu = self.tr(u'&IMAERreader')
self.toolbar = self.iface.addToolBar(u'IMAERreader')
self.toolbar.setObjectName(u'IMAERreader')
class ImaerReader:
"""QGIS Plugin Implementation."""
def __init__(self, iface):
"""Constructor.
:param iface: An interface instance that will be passed to this class
which provides the hook by which you can manipulate the QGIS
application at run time.
:type iface: QgsInterface
"""
# Save reference to the QGIS interface
self.iface = iface
# initialize plugin directory
#self.plugin_dir = os.path.dirname(os.path.abspath(__file__))
self.plugin_dir = os.path.dirname(__file__)
# initialize locale
locale = QSettings().value('locale/userLocale')[0:2]
locale_path = os.path.join(
self.plugin_dir,
'i18n',
'ImaerReader_{}.qm'.format(locale))
if os.path.exists(locale_path):
self.translator = QTranslator()
self.translator.load(locale_path)
if qVersion() > '4.3.3':
QCoreApplication.installTranslator(self.translator)
# Create the dialog (after translation) and keep reference
self.dlg = ImaerReaderDialog()
# add some necessary signal and slot communication as well as disable the save button for now
self.dlg.cancel_open_button_box.button(QDialogButtonBox.Open).setEnabled(False)
QObject.connect(self.dlg.fileBrowseButton, SIGNAL("clicked()"), self.chooseFile)
QObject.connect(self.dlg.gmlFileNameBox, SIGNAL("textChanged(QString)"), self.gmlFileNameBoxChanged)
QObject.connect(self.dlg.help_pushButton, SIGNAL("clicked()"), self.showHelp)
self.dlg.workerEnd.connect(self.zoomToLayers)
# Declare instance attributes
self.actions = []
self.menu = self.tr(u'&IMAERreader')
self.toolbar = self.iface.addToolBar(u'IMAERreader')
self.toolbar.setObjectName(u'IMAERreader')
# noinspection PyMethodMayBeStatic
def tr(self, message):
"""Get the translation for a string using Qt translation API.
We implement this ourselves since we do not inherit QObject.
:param message: String for translation.
:type message: str, QString
:returns: Translated version of message.
:rtype: QString
"""
# noinspection PyTypeChecker,PyArgumentList,PyCallByClass
return QCoreApplication.translate('IMAERreader', message)
def add_action(
self,
icon_path,
text,
callback,
enabled_flag=True,
add_to_menu=True,
add_to_toolbar=True,
status_tip=None,
whats_this=None,
parent=None):
"""Add a toolbar icon to the toolbar.
:param icon_path: Path to the icon for this action. Can be a resource
path (e.g. ':/plugins/foo/bar.png') or a normal file system path.
:type icon_path: str
:param text: Text that should be shown in menu items for this action.
:type text: str
:param callback: Function to be called when the action is triggered.
:type callback: function
:param enabled_flag: A flag indicating if the action should be enabled
by default. Defaults to True.
:type enabled_flag: bool
:param add_to_menu: Flag indicating whether the action should also
be added to the menu. Defaults to True.
:type add_to_menu: bool
:param add_to_toolbar: Flag indicating whether the action should also
be added to the toolbar. Defaults to True.
:type add_to_toolbar: bool
:param status_tip: Optional text to show in a popup when mouse pointer
hovers over the action.
:type status_tip: str
:param parent: Parent widget for the new action. Defaults None.
:type parent: QWidget
:param whats_this: Optional text to show in the status bar when the
mouse pointer hovers over the action.
:returns: The action that was created. Note that the action is also
added to self.actions list.
:rtype: QAction
"""
icon = QIcon(icon_path)
action = QAction(icon, text, parent)
action.triggered.connect(callback)
action.setEnabled(enabled_flag)
if status_tip is not None:
action.setStatusTip(status_tip)
if whats_this is not None:
action.setWhatsThis(whats_this)
if add_to_toolbar:
self.toolbar.addAction(action)
if add_to_menu:
self.iface.addPluginToMenu(
self.menu,
action)
self.actions.append(action)
return action
def initGui(self):
"""Create the menu entries and toolbar icons inside the QGIS GUI."""
icon_path = ':/plugins/ImaerReader/icon.png'
self.add_action(
icon_path,
text=self.tr(u'Import IMAER gml'),
callback=self.run,
parent=self.iface.mainWindow())
def unload(self):
"""Removes the plugin menu item and icon from QGIS GUI."""
for action in self.actions:
self.iface.removePluginMenu(
self.tr(u'&ImaerReader'),
action)
self.iface.removeToolBarIcon(action)
# remove the toolbar
del self.toolbar
def log(self, msg):
QgsMessageLog.logMessage(str(msg), 'IMAERreader', QgsMessageLog.INFO)
def run(self):
"""Run method that performs all the real work"""
# show the dialog
self.dlg.show()
# Run the dialog event loop
result = self.dlg.exec_()
if result:
self.doPoint = self.dlg.point_checkBox.checkState()
self.doHexagon = self.dlg.hexagon_checkBox.checkState()
# create new IMAER feature collection object
featureCollection = IR.ImaerRead(gmlFile = self.dlg.gmlFileNameBox.text())
self.attributes = featureCollection.AttributeFields
#create layers
if self.doPoint:
(self.pointLayer, self.pointProvider) = self.createLayer(dim=0, name="Deposition calculation point")
else:
self.pointProvider = None
if self.doHexagon:
(self.hexagonLayer, self.hexagonProvider) = self.createLayer(dim=2, name="Deposition hexagon")
else:
self.hexagonProvider = None
# start worker for reading features in different thread
self.dlg.startWorker(featureCollection, self.attributes, self.pointProvider, self.hexagonProvider)
# add layers to map
canvas = iface.mapCanvas()
if self.doHexagon:
hexagonQml = os.path.join(self.plugin_dir,'imaer_hexagon.qml')
self.hexagonLayer.loadNamedStyle(hexagonQml)
QgsMapLayerRegistry.instance().addMapLayer(self.hexagonLayer)
if self.doPoint:
# TODO: create some point style too
#self.pointLayer.loadNamedStyle()
QgsMapLayerRegistry.instance().addMapLayer(self.pointLayer)
def zoomToLayers(self):
canvas = iface.mapCanvas()
if self.doHexagon:
self.hexagonLayer.updateExtents()
canvas.setExtent(self.hexagonLayer.extent())
if self.doPoint:
self.pointLayer.updateExtents()
if not self.doHexagon:
canvas.setExtent(self.pointLayer.extent())
canvas.refresh()
def createLayer(self, dim=2, name="imaer layer"):
"""Creates a map layer of polygon (2) or point (0) type, and returns both the layer and the provider as a tuple.
:param dim: dimension of the geometry
:type dim: int
:param name: layer name (defaults to 'imaer layer'
:type ft: str
"""
# create layer
if dim == 2:
vl = QgsVectorLayer("Polygon?crs=EPSG:28992", name, "memory")
else:
vl = QgsVectorLayer("Point?crs=EPSG:28992", name, "memory")
pr = vl.dataProvider()
# add fields
pr.addAttributes([QgsField("id", QVariant.String)])
for subst in self.attributes:
pr.addAttributes([QgsField(subst, QVariant.Double)])
vl.updateFields()
return (vl,pr)
def updateFeatureCounter(self):
"""Updates the feature count in the progress dialog."""
self.progress.feature_count_label.setText(str(self.featureCount))
def chooseFile(self):
"""Opens the file dialog to pick a file to open"""
fileName = QFileDialog.getOpenFileName(caption = "Open IMAER gml File", filter = '*.gml')
self.dlg.gmlFileNameBox.setText(fileName)
def gmlFileNameBoxChanged(self, fileName):
"""Enables the OK button after entering a file name"""
if os.path.exists(os.path.dirname(fileName)):
self.dlg.cancel_open_button_box.button(QDialogButtonBox.Open).setEnabled(True)
def showHelp(self):
"""Reacts on help button"""
showPluginHelp(filename = 'help/index')
def setUp(self):
"""Runs before each test."""
self.dialog = ImaerReaderDialog(None)
