class KeywordsDialog(QtGui.QDialog, Ui_KeywordsDialogBase):
"""Dialog implementation class for the Risk In A Box keywords editor."""
def __init__(self, parent, iface, theDock=None):
"""Constructor for the dialog.
.. note:: In QtDesigner the advanced editor's predefined keywords
list should be shown in english always, so when adding entries to
cboKeyword, be sure to choose :safe_qgis:`Properties<<` and untick
the :safe_qgis:`translatable` property.
Args:
* parent - parent widget of this dialog
* iface - a Quantum GIS QGisAppInterface instance.
* theDock - Optional dock widget instance that we can notify of
changes to the keywords.
Returns:
not applicable
Raises:
no exceptions explicitly raised
"""
QtGui.QDialog.__init__(self, parent)
self.setupUi(self)
self.setWindowTitle(self.tr(
'InaSAFE %s Keywords Editor' % __version__))
self.keywordIO = KeywordIO()
# note the keys should remain untranslated as we need to write
# english to the keywords file. The keys will be written as user data
# in the combo entries.
# .. seealso:: http://www.voidspace.org.uk/python/odict.html
self.standardExposureList = OrderedDict([('population [density]',
self.tr('population [density]')),
('population [count]',
self.tr('population [count]')),
('building',
self.tr('building')),
('building [osm]',
self.tr('building [osm]')),
('building [sigab]',
self.tr('building [sigab]')),
('roads',
self.tr('roads'))])
self.standardHazardList = OrderedDict([('earthquake [MMI]',
self.tr('earthquake [MMI]')),
('tsunami [m]',
self.tr('tsunami [m]')),
('tsunami [wet/dry]',
self.tr('tsunami [wet/dry]')),
('tsunami [feet]',
self.tr('tsunami [feet]')),
('flood [m]',
self.tr('flood [m]')),
('flood [wet/dry]',
self.tr('flood [wet/dry]')),
('flood [feet]', self.tr('flood [feet]')),
('tephra [kg2/m2',
self.tr('tephra [kg2/m2]'))])
# Save reference to the QGIS interface and parent
self.iface = iface
self.parent = parent
self.dock = theDock
QtCore.QObject.connect(self.lstKeywords,
QtCore.SIGNAL("itemClicked(QListWidgetItem *)"),
self.makeKeyValueEditable)
# Set up help dialog showing logic.
self.helpDialog = None
myButton = self.buttonBox.button(QtGui.QDialogButtonBox.Help)
QtCore.QObject.connect(myButton, QtCore.SIGNAL('clicked()'),
self.showHelp)
# set some inital ui state:
self.pbnAdvanced.setChecked(True)
self.pbnAdvanced.toggle()
self.radPredefined.setChecked(True)
self.adjustSize()
#myButton = self.buttonBox.button(QtGui.QDialogButtonBox.Ok)
#myButton.setEnabled(False)
self.layer = self.iface.activeLayer()
if self.layer:
self.loadStateFromKeywords()
def showHelp(self):
"""Load the help text for the keywords safe_qgis"""
if not self.helpDialog:
self.helpDialog = Help(self.iface.mainWindow(), 'keywords')
self.helpDialog.show()
# prevents actions being handled twice
@pyqtSignature('bool')
def on_pbnAdvanced_toggled(self, theFlag):
"""Automatic slot executed when the advanced button is toggled.
.. note:: some of the behaviour for hiding widgets is done using
the signal/slot editor in designer, so if you are trying to figure
out how the interactions work, look there too!
Args:
theFlag - boolean indicating the new checked state of the button
Returns:
None.
Raises:
no exceptions explicitly raised."""
if theFlag:
self.pbnAdvanced.setText(self.tr('Hide advanced editor'))
else:
self.pbnAdvanced.setText(self.tr('Show advanced editor'))
self.adjustSize()
# prevents actions being handled twice
@pyqtSignature('bool')
def on_radHazard_toggled(self, theFlag):
"""Automatic slot executed when the hazard radio is toggled.
Args:
theFlag - boolean indicating the new checked state of the button
Returns:
None.
Raises:
no exceptions explicitly raised."""
if not theFlag:
return
self.setCategory('hazard')
self.updateControlsFromList()
# prevents actions being handled twice
@pyqtSignature('bool')
def on_radExposure_toggled(self, theFlag):
"""Automatic slot executed when the hazard radio is toggled on.
Args:
theFlag - boolean indicating the new checked state of the button
Returns:
None.
Raises:
no exceptions explicitly raised."""
if not theFlag:
return
self.setCategory('exposure')
self.updateControlsFromList()
# prevents actions being handled twice
@pyqtSignature('int')
def on_cboSubcategory_currentIndexChanged(self, theIndex=None):
"""Automatic slot executed when the subcategory is changed.
When the user changes the subcategory, we will extract the
subcategory and dataype or unit (depending on if it is a hazard
or exposure subcategory) from the [] after the name.
Args:
None
Returns:
None.
Raises:
no exceptions explicitly raised."""
del theIndex
myItem = self.cboSubcategory.itemData(
self.cboSubcategory.currentIndex()).toString()
myText = str(myItem)
if myText == self.tr('Not Set'):
self.removeItemByKey('subcategory')
return
myTokens = myText.split(' ')
if len(myTokens) < 1:
self.removeItemByKey('subcategory')
return
mySubcategory = myTokens[0]
self.addListEntry('subcategory', mySubcategory)
# Some subcategories e.g. roads have no units or datatype
if len(myTokens) == 1:
return
myCategory = self.getValueForKey('category')
if 'hazard' == myCategory:
myUnits = myTokens[1].replace('[', '').replace(']', '')
self.addListEntry('unit', myUnits)
if 'exposure' == myCategory:
myDataType = myTokens[1].replace('[', '').replace(']', '')
self.addListEntry('datatype', myDataType)
# prevents actions being handled twice
def setSubcategoryList(self, theEntries, theSelectedItem=None):
"""Helper to populate the subcategory list based on category context.
Args:
* theEntries - an OrderedDict of subcategories. The dict entries
should be ('earthquake', self.tr('earthquake')). See
http://www.voidspace.org.uk/python/odict.html for info on
OrderedDict.
* theSelectedItem - optional parameter indicating which item
should be selected in the combo. If the selected item is not
in theList, it will be appended to it.
Returns:
None.
Raises:
no exceptions explicitly raised.
"""
# To aoid triggering on_cboSubcategory_currentIndexChanged
# we block signals from the combo while updating it
self.cboSubcategory.blockSignals(True)
self.cboSubcategory.clear()
if (theSelectedItem is not None and
theSelectedItem not in theEntries.values() and
theSelectedItem not in theEntries.keys()):
# Add it to the OrderedList
theEntries[theSelectedItem] = theSelectedItem
myIndex = 0
mySelectedIndex = 0
for myKey, myValue in theEntries.iteritems():
if (myValue == theSelectedItem or
myKey == theSelectedItem):
mySelectedIndex = myIndex
myIndex += 1
self.cboSubcategory.addItem(myValue, myKey)
self.cboSubcategory.setCurrentIndex(mySelectedIndex)
self.cboSubcategory.blockSignals(False)
# prevents actions being handled twice
@pyqtSignature('')
def on_pbnAddToList1_clicked(self):
"""Automatic slot executed when the pbnAddToList1 button is pressed.
Args:
None
Returns:
None.
Raises:
no exceptions explicitly raised."""
if (not self.lePredefinedValue.text().isEmpty() and not
self.cboKeyword.currentText().isEmpty()):
myCurrentKey = self.tr(self.cboKeyword.currentText())
myCurrentValue = self.lePredefinedValue.text()
self.addListEntry(myCurrentKey, myCurrentValue)
self.lePredefinedValue.setText('')
self.updateControlsFromList()
# prevents actions being handled twice
@pyqtSignature('')
def on_pbnAddToList2_clicked(self):
"""Automatic slot executed when the pbnAddToList2 button is pressed.
Args:
None
Returns:
None.
Raises:
no exceptions explicitly raised."""
myCurrentKey = self.leKey.text()
myCurrentValue = self.leValue.text()
if myCurrentKey == 'category' and myCurrentValue == 'hazard':
self.radHazard.blockSignals(True)
self.radHazard.setChecked(True)
self.setSubcategoryList(self.standardHazardList)
self.radHazard.blockSignals(False)
elif myCurrentKey == 'category' and myCurrentValue == 'exposure':
self.radExposure.blockSignals(True)
self.radExposure.setChecked(True)
self.setSubcategoryList(self.standardExposureList)
self.radExposure.blockSignals(False)
elif myCurrentKey == 'category':
#.. todo:: notify the user their category is invalid
pass
self.addListEntry(myCurrentKey, myCurrentValue)
self.leKey.setText('')
self.leValue.setText('')
self.updateControlsFromList()
# prevents actions being handled twice
@pyqtSignature('')
def on_pbnRemove_clicked(self):
"""Automatic slot executed when the pbnRemove button is pressed.
It will remove any selected items in the keywords list.
Args:
None
Returns:
None.
Raises:
no exceptions explicitly raised."""
for myItem in self.lstKeywords.selectedItems():
self.lstKeywords.takeItem(self.lstKeywords.row(myItem))
self.leKey.setText('')
self.leValue.setText('')
self.updateControlsFromList()
def addListEntry(self, theKey, theValue):
"""Add an item to the keywords list given its key/value.
The key and value must both be valid, non empty strings
or an InvalidKVPException will be raised.
If an entry with the same key exists, it's value will be
replaced with theValue.
It will add the current key/value pair to the list if it is not
already present. The kvp will also be stored in the data of the
listwidgetitem as a simple string delimited with a bar ('|').
Args:
* theKey - string representing the key part of the key
value pair (kvp)
* theValue - string representing the value part of the key
value pair (kvp)
Returns:
None.
Raises:
no exceptions explicitly raised."""
if theKey is None or theKey == '':
return
if theValue is None or theValue == '':
return
myMessage = ''
if ':' in theKey:
theKey = theKey.replace(':', '.')
myMessage = self.tr('Colons are not allowed, replaced with "."')
if ':' in theValue:
theValue = theValue.replace(':', '.')
myMessage = self.tr('Colons are not allowed, replaced with "."')
if myMessage == '':
self.lblMessage.setText('')
self.lblMessage.hide()
else:
self.lblMessage.setText(myMessage)
self.lblMessage.show()
myItem = QtGui.QListWidgetItem(theKey + ':' + theValue)
# we are going to replace, so remove it if it exists already
self.removeItemByKey(theKey)
myData = theKey + '|' + theValue
myItem.setData(QtCore.Qt.UserRole, myData)
self.lstKeywords.insertItem(0, myItem)
def setCategory(self, theCategory):
"""Set the category radio button based on theCategory.
Args:
theCategory - a string which must be either 'hazard' or 'exposure'.
Returns:
False if the radio button could not be updated
Raises:
no exceptions explicitly raised."""
# convert from QString if needed
myCategory = str(theCategory)
if self.getValueForKey('category') == myCategory:
#nothing to do, go home
return True
if myCategory not in ['hazard', 'exposure']:
# .. todo:: report an error to the user
return False
# Special case when category changes, we start on a new slate!
if myCategory == 'hazard':
# only cause a toggle if we actually changed the category
# This will only really be apparent if user manually enters
# category as a keyword
self.reset()
self.radHazard.blockSignals(True)
self.radHazard.setChecked(True)
self.radHazard.blockSignals(False)
self.removeItemByKey('subcategory')
self.removeItemByKey('datatype')
self.addListEntry('category', 'hazard')
myList = self.standardHazardList
self.setSubcategoryList(myList)
else:
self.reset()
self.radExposure.blockSignals(True)
self.radExposure.setChecked(True)
self.radExposure.blockSignals(False)
self.removeItemByKey('subcategory')
self.removeItemByKey('unit')
self.addListEntry('category', 'exposure')
myList = self.standardExposureList
self.setSubcategoryList(myList)
return True
def reset(self, thePrimaryKeywordsOnlyFlag=True):
"""Reset all controls to a blank state.
Args:
thePrimaryKeywordsOnlyFlag - if True (the default), only
reset Subcategory, datatype and units.
Returns:
None
Raises:
no exceptions explicitly raised."""
self.cboSubcategory.clear()
self.removeItemByKey('subcategory')
self.removeItemByKey('datatype')
self.removeItemByKey('unit')
if not thePrimaryKeywordsOnlyFlag:
# Clear everything else too
self.lstKeywords.clear()
self.leKey.clear()
self.leValue.clear()
self.lePredefinedValue.clear()
self.leTitle.clear()
def removeItemByKey(self, theKey):
"""Remove an item from the kvp list given its key.
Args:
theKey - key of item to be removed.
Returns:
None
Raises:
no exceptions explicitly raised."""
for myCounter in range(self.lstKeywords.count()):
myExistingItem = self.lstKeywords.item(myCounter)
myText = myExistingItem.text()
myTokens = myText.split(':')
if len(myTokens) < 2:
break
myKey = myTokens[0]
if myKey == theKey:
# remove it since the key is already present
self.lstKeywords.takeItem(myCounter)
break
def removeItemByValue(self, theValue):
"""Remove an item from the kvp list given its key.
Args:
theValue - value of item to be removed.
Returns:
None
Raises:
no exceptions explicitly raised."""
for myCounter in range(self.lstKeywords.count()):
myExistingItem = self.lstKeywords.item(myCounter)
myText = myExistingItem.text()
myTokens = myText.split(':')
myValue = myTokens[1]
if myValue == theValue:
# remove it since the key is already present
self.lstKeywords.takeItem(myCounter)
break
def getValueForKey(self, theKey):
"""Check if our key list contains a specific key,
and return its value if present.
Args:
theKey- String representing the key to search for
Returns:
Value of key if matched otherwise none
Raises:
no exceptions explicitly raised."""
for myCounter in range(self.lstKeywords.count()):
myExistingItem = self.lstKeywords.item(myCounter)
myText = myExistingItem.text()
myTokens = myText.split(':')
myKey = str(myTokens[0]).strip()
myValue = str(myTokens[1]).strip()
if myKey == theKey:
return myValue
return None
def loadStateFromKeywords(self):
"""Set the ui state to match the keywords of the
currently active layer.
Args:
None
Returns:
None.
Raises:
no exceptions explicitly raised."""
# In case the layer has no keywords or any problem occurs reading them,
# start with a blank slate so that subcategory gets populated nicely &
# we will assume exposure to start with.
myKeywords = {'category': 'exposure'}
try:
# Now read the layer with sub layer if needed
myKeywords = self.keywordIO.readKeywords(self.layer)
except (InvalidParameterException, HashNotFoundException):
pass
myLayerName = self.layer.name()
if 'title' not in myKeywords:
self.leTitle.setText(myLayerName)
self.lblLayerName.setText(myLayerName)
#if we have a category key, unpack it first so radio button etc get set
if 'category' in myKeywords:
self.setCategory(myKeywords['category'])
myKeywords.pop('category')
for myKey in myKeywords.iterkeys():
self.addListEntry(myKey, myKeywords[myKey])
# now make the rest of the safe_qgis reflect the list entries
self.updateControlsFromList()
def updateControlsFromList(self):
"""Set the ui state to match the keywords of the
currently active layer.
Args:
None
Returns:
None.
Raises:
no exceptions explicitly raised."""
mySubcategory = self.getValueForKey('subcategory')
myUnits = self.getValueForKey('unit')
myType = self.getValueForKey('datatype')
myTitle = self.getValueForKey('title')
if myTitle is not None:
self.leTitle.setText(myTitle)
elif self.layer is not None:
myLayerName = self.layer.name()
self.lblLayerName.setText(myLayerName)
else:
self.lblLayerName.setText('')
if self.radExposure.isChecked():
if mySubcategory is not None and myType is not None:
self.setSubcategoryList(self.standardExposureList,
mySubcategory + ' [' + myType + ']')
elif mySubcategory is not None:
self.setSubcategoryList(self.standardExposureList,
mySubcategory)
else:
self.setSubcategoryList(self.standardExposureList,
self.tr('Not Set'))
else:
if mySubcategory is not None and myUnits is not None:
self.setSubcategoryList(self.standardHazardList,
mySubcategory + ' [' + myUnits + ']')
elif mySubcategory is not None:
self.setSubcategoryList(self.standardHazardList,
mySubcategory)
else:
self.setSubcategoryList(self.standardHazardList,
self.tr('Not Set'))
# prevents actions being handled twice
@pyqtSignature('QString')
def on_leTitle_textEdited(self, theText):
"""Update the keywords list whenver the user changes the title.
This slot is not called is the title is changed programmatically.
Args:
None
Returns:
dict - a dictionary of keyword reflecting the state of the dialog.
Raises:
no exceptions explicitly raised."""
self.addListEntry('title', str(theText))
def getKeywords(self):
"""Obtain the state of the dialog as a keywords dict
Args:
None
Returns:
dict - a dictionary of keyword reflecting the state of the dialog.
Raises:
no exceptions explicitly raised."""
#make sure title is listed
if str(self.leTitle.text()) != '':
self.addListEntry('title', str(self.leTitle.text()))
myKeywords = {}
for myCounter in range(self.lstKeywords.count()):
myExistingItem = self.lstKeywords.item(myCounter)
myText = myExistingItem.text()
myTokens = myText.split(':')
myKey = str(myTokens[0]).strip()
myValue = str(myTokens[1]).strip()
myKeywords[myKey] = myValue
return myKeywords
def accept(self):
"""Automatic slot executed when the ok button is pressed.
It will write out the keywords for the layer that is active.
Args:
None
Returns:
None.
Raises:
no exceptions explicitly raised."""
self.applyPendingChanges()
myKeywords = self.getKeywords()
try:
self.keywordIO.writeKeywords(theLayer=self.layer,
theKeywords=myKeywords)
except InaSAFEError, e:
QtGui.QMessageBox.warning(self, self.tr('InaSAFE'),
((self.tr('An error was encountered when saving the keywords:\n'
'%s' % str(getExceptionWithStacktrace(e))))))
if self.dock is not None:
self.dock.getLayers()
self.close()
class KeywordsDialog(QtGui.QDialog, Ui_KeywordsDialogBase):
"""Dialog implementation class for the Risk In A Box keywords editor."""
def __init__(self, parent, iface, theDock=None, theLayer=None):
"""Constructor for the dialog.
.. note:: In QtDesigner the advanced editor's predefined keywords
list should be shown in english always, so when adding entries to
cboKeyword, be sure to choose :safe_qgis:`Properties<<` and untick
the :safe_qgis:`translatable` property.
Args:
* parent - parent widget of this dialog
* iface - a Quantum GIS QGisAppInterface instance.
* theDock - Optional dock widget instance that we can notify of
changes to the keywords.
Returns:
not applicable
Raises:
no exceptions explicitly raised
"""
QtGui.QDialog.__init__(self, parent)
self.setupUi(self)
self.setWindowTitle(self.tr(
'InaSAFE %1 Keywords Editor').arg(get_version()))
self.keywordIO = KeywordIO()
# note the keys should remain untranslated as we need to write
# english to the keywords file. The keys will be written as user data
# in the combo entries.
# .. seealso:: http://www.voidspace.org.uk/python/odict.html
self.standardExposureList = OrderedDict([('population',
self.tr('population')),
('structure', self.tr('structure')),
('road', self.tr('road')),
('Not Set', self.tr('Not Set'))])
self.standardHazardList = OrderedDict([('earthquake [MMI]',
self.tr('earthquake [MMI]')),
('tsunami [m]', self.tr('tsunami [m]')),
('tsunami [wet/dry]',
self.tr('tsunami [wet/dry]')),
('tsunami [feet]',
self.tr('tsunami [feet]')),
('flood [m]', self.tr('flood [m]')),
('flood [wet/dry]',
self.tr('flood [wet/dry]')),
('flood [feet]', self.tr('flood [feet]')),
('tephra [kg2/m2]',
self.tr('tephra [kg2/m2]')),
('volcano', self.tr('volcano')),
('Not Set', self.tr('Not Set'))])
# Save reference to the QGIS interface and parent
self.iface = iface
self.parent = parent
self.dock = theDock
QtCore.QObject.connect(self.lstKeywords,
QtCore.SIGNAL("itemClicked(QListWidgetItem *)"),
self.makeKeyValueEditable)
# Set up help dialog showing logic.
self.helpDialog = None
myButton = self.buttonBox.button(QtGui.QDialogButtonBox.Help)
QtCore.QObject.connect(myButton, QtCore.SIGNAL('clicked()'),
self.showHelp)
# set some inital ui state:
self.defaults = getDefaults()
self.pbnAdvanced.setChecked(True)
self.pbnAdvanced.toggle()
self.radPredefined.setChecked(True)
self.dsbFemaleRatioDefault.blockSignals(True)
self.dsbFemaleRatioDefault.setValue(self.defaults[
'FEM_RATIO'])
self.dsbFemaleRatioDefault.blockSignals(False)
#myButton = self.buttonBox.button(QtGui.QDialogButtonBox.Ok)
#myButton.setEnabled(False)
if theLayer is None:
self.layer = self.iface.activeLayer()
else:
self.layer = theLayer
if self.layer:
self.loadStateFromKeywords()
#add a reload from keywords button
myButton = self.buttonBox.addButton(self.tr('Reload'),
QtGui.QDialogButtonBox.ActionRole)
QtCore.QObject.connect(myButton, QtCore.SIGNAL('clicked()'),
self.loadStateFromKeywords)
def setLayer(self, theLayer):
self.layer = theLayer
self.loadStateFromKeywords()
def showHelp(self):
"""Load the help text for the keywords safe_qgis"""
if self.helpDialog:
del self.helpDialog
self.helpDialog = Help(self.iface.mainWindow(), 'keywords')
def togglePostprocessingWidgets(self):
LOGGER.debug('togglePostprocessingWidgets')
isPostprocessingOn = self.radPostprocessing.isChecked()
self.cboSubcategory.setVisible(not isPostprocessingOn)
self.lblSubcategory.setVisible(not isPostprocessingOn)
self.showAggregationAttribute(isPostprocessingOn)
self.showFemaleRatioAttribute(isPostprocessingOn)
self.showFemaleRatioDefault(isPostprocessingOn)
def showAggregationAttribute(self, theFlag):
theBox = self.cboAggregationAttribute
theBox.blockSignals(True)
theBox.clear()
theBox.blockSignals(False)
if theFlag:
currentKeyword = self.getValueForKey(
self.defaults['AGGR_ATTR_KEY'])
fields, attributePosition = getLayerAttributeNames(self.layer,
[QtCore.QVariant.Int, QtCore.QVariant.String],
currentKeyword)
theBox.addItems(fields)
if attributePosition is None:
theBox.setCurrentIndex(0)
else:
theBox.setCurrentIndex(attributePosition)
theBox.setVisible(theFlag)
self.lblAggregationAttribute.setVisible(theFlag)
def showFemaleRatioAttribute(self, theFlag):
theBox = self.cboFemaleRatioAttribute
theBox.blockSignals(True)
theBox.clear()
theBox.blockSignals(False)
if theFlag:
currentKeyword = self.getValueForKey(
self.defaults['FEM_RATIO_ATTR_KEY'])
fields, attributePosition = getLayerAttributeNames(self.layer,
[QtCore.QVariant.Double],
currentKeyword)
fields.insert(0, self.tr('Use default'))
fields.insert(1, self.tr('Don\'t use'))
theBox.addItems(fields)
if currentKeyword == self.tr('Use default'):
theBox.setCurrentIndex(0)
elif currentKeyword == self.tr('Don\'t use'):
theBox.setCurrentIndex(1)
elif attributePosition is None:
# currentKeyword was not found in the attribute table.
# Use default
theBox.setCurrentIndex(0)
else:
# + 2 is because we add use defaults and don't use
theBox.setCurrentIndex(attributePosition + 2)
theBox.setVisible(theFlag)
self.lblFemaleRatioAttribute.setVisible(theFlag)
def showFemaleRatioDefault(self, theFlag):
theBox = self.dsbFemaleRatioDefault
if theFlag:
currentValue = self.getValueForKey(
self.defaults['FEM_RATIO_KEY'])
if currentValue is None:
val = self.defaults['FEM_RATIO']
else:
val = float(currentValue)
theBox.setValue(val)
theBox.setVisible(theFlag)
self.lblFemaleRatioDefault.setVisible(theFlag)
# prevents actions being handled twice
@pyqtSignature('int')
def on_cboAggregationAttribute_currentIndexChanged(self, theIndex=None):
del theIndex
self.addListEntry(self.defaults['AGGR_ATTR_KEY'],
self.cboAggregationAttribute.currentText())
# prevents actions being handled twice
@pyqtSignature('int')
def on_cboFemaleRatioAttribute_currentIndexChanged(self, theIndex=None):
del theIndex
text = self.cboFemaleRatioAttribute.currentText()
if text == self.tr('Use default'):
self.dsbFemaleRatioDefault.setEnabled(True)
currentDefault = self.getValueForKey(
self.defaults['FEM_RATIO_KEY'])
if currentDefault is None:
self.addListEntry(self.defaults['FEM_RATIO_KEY'],
self.dsbFemaleRatioDefault.value())
else:
self.dsbFemaleRatioDefault.setEnabled(False)
self.removeItemByKey(self.defaults['FEM_RATIO_KEY'])
self.addListEntry(self.defaults['FEM_RATIO_ATTR_KEY'], text)
# prevents actions being handled twice
@pyqtSignature('double')
def on_dsbFemaleRatioDefault_valueChanged(self, theValue):
del theValue
theBox = self.dsbFemaleRatioDefault
if theBox.isEnabled():
self.addListEntry(self.defaults['FEM_RATIO_KEY'],
theBox.value())
# prevents actions being handled twice
@pyqtSignature('bool')
def on_pbnAdvanced_toggled(self, theFlag):
"""Automatic slot executed when the advanced button is toggled.
.. note:: some of the behaviour for hiding widgets is done using
the signal/slot editor in designer, so if you are trying to figure
out how the interactions work, look there too!
Args:
theFlag - boolean indicating the new checked state of the button
Returns:
None.
Raises:
no exceptions explicitly raised."""
self.toggleAdvanced(theFlag)
def toggleAdvanced(self, theFlag):
if theFlag:
self.pbnAdvanced.setText(self.tr('Hide advanced editor'))
else:
self.pbnAdvanced.setText(self.tr('Show advanced editor'))
self.grpAdvanced.setVisible(theFlag)
self.resizeDialog()
# prevents actions being handled twice
@pyqtSignature('bool')
def on_radHazard_toggled(self, theFlag):
"""Automatic slot executed when the hazard radio is toggled.
Args:
theFlag - boolean indicating the new checked state of the button
Returns:
None.
Raises:
no exceptions explicitly raised."""
if not theFlag:
return
self.setCategory('hazard')
self.updateControlsFromList()
# prevents actions being handled twice
@pyqtSignature('bool')
def on_radExposure_toggled(self, theFlag):
"""Automatic slot executed when the hazard radio is toggled on.
Args:
theFlag - boolean indicating the new checked state of the button
Returns:
None.
Raises:
no exceptions explicitly raised."""
if not theFlag:
return
self.setCategory('exposure')
self.updateControlsFromList()
# prevents actions being handled twice
@pyqtSignature('bool')
def on_radPostprocessing_toggled(self, theFlag):
"""Automatic slot executed when the hazard radio is toggled on.
Args:
theFlag - boolean indicating the new checked state of the button
Returns:
None.
Raises:
no exceptions explicitly raised."""
if not theFlag:
self.removeItemByKey(self.defaults['AGGR_ATTR_KEY'])
self.removeItemByKey(self.defaults['FEM_RATIO_ATTR_KEY'])
self.removeItemByKey(self.defaults['FEM_RATIO_KEY'])
return
self.setCategory('postprocessing')
self.updateControlsFromList()
# prevents actions being handled twice
@pyqtSignature('int')
def on_cboSubcategory_currentIndexChanged(self, theIndex=None):
"""Automatic slot executed when the subcategory is changed.
When the user changes the subcategory, we will extract the
subcategory and dataype or unit (depending on if it is a hazard
or exposure subcategory) from the [] after the name.
Args:
None
Returns:
None.
Raises:
no exceptions explicitly raised."""
del theIndex
myItem = self.cboSubcategory.itemData(
self.cboSubcategory.currentIndex()).toString()
myText = str(myItem)
# I found that myText is 'Not Set' for every language
if myText == self.tr('Not Set') or myText == 'Not Set':
self.removeItemByKey('subcategory')
return
myTokens = myText.split(' ')
if len(myTokens) < 1:
self.removeItemByKey('subcategory')
return
mySubcategory = myTokens[0]
self.addListEntry('subcategory', mySubcategory)
# Some subcategories e.g. roads have no units or datatype
if len(myTokens) == 1:
return
if myTokens[1].find('[') < 0:
return
myCategory = self.getValueForKey('category')
if 'hazard' == myCategory:
myUnits = myTokens[1].replace('[', '').replace(']', '')
self.addListEntry('unit', myUnits)
if 'exposure' == myCategory:
myDataType = myTokens[1].replace('[', '').replace(']', '')
self.addListEntry('datatype', myDataType)
# prevents actions being handled twice
def setSubcategoryList(self, theEntries, theSelectedItem=None):
"""Helper to populate the subcategory list based on category context.
Args:
* theEntries - an OrderedDict of subcategories. The dict entries
should be ('earthquake', self.tr('earthquake')). See
http://www.voidspace.org.uk/python/odict.html for info on
OrderedDict.
* theSelectedItem - optional parameter indicating which item
should be selected in the combo. If the selected item is not
in theList, it will be appended to it.
Returns:
None.
Raises:
no exceptions explicitly raised.
"""
# To aoid triggering on_cboSubcategory_currentIndexChanged
# we block signals from the combo while updating it
self.cboSubcategory.blockSignals(True)
self.cboSubcategory.clear()
if (theSelectedItem is not None and
theSelectedItem not in theEntries.values() and
theSelectedItem not in theEntries.keys()):
# Add it to the OrderedList
theEntries[theSelectedItem] = theSelectedItem
myIndex = 0
mySelectedIndex = 0
for myKey, myValue in theEntries.iteritems():
if (myValue == theSelectedItem or
myKey == theSelectedItem):
mySelectedIndex = myIndex
myIndex += 1
self.cboSubcategory.addItem(myValue, myKey)
self.cboSubcategory.setCurrentIndex(mySelectedIndex)
self.cboSubcategory.blockSignals(False)
# prevents actions being handled twice
@pyqtSignature('')
def on_pbnAddToList1_clicked(self):
"""Automatic slot executed when the pbnAddToList1 button is pressed.
Args:
None
Returns:
None.
Raises:
no exceptions explicitly raised."""
if (not self.lePredefinedValue.text().isEmpty() and not
self.cboKeyword.currentText().isEmpty()):
myCurrentKey = self.tr(self.cboKeyword.currentText())
myCurrentValue = self.lePredefinedValue.text()
self.addListEntry(myCurrentKey, myCurrentValue)
self.lePredefinedValue.setText('')
self.updateControlsFromList()
# prevents actions being handled twice
@pyqtSignature('')
def on_pbnAddToList2_clicked(self):
"""Automatic slot executed when the pbnAddToList2 button is pressed.
Args:
None
Returns:
None.
Raises:
no exceptions explicitly raised."""
myCurrentKey = self.leKey.text()
myCurrentValue = self.leValue.text()
if myCurrentKey == 'category' and myCurrentValue == 'hazard':
self.radHazard.blockSignals(True)
self.radHazard.setChecked(True)
self.setSubcategoryList(self.standardHazardList)
self.radHazard.blockSignals(False)
elif myCurrentKey == 'category' and myCurrentValue == 'exposure':
self.radExposure.blockSignals(True)
self.radExposure.setChecked(True)
self.setSubcategoryList(self.standardExposureList)
self.radExposure.blockSignals(False)
elif myCurrentKey == 'category':
#.. todo:: notify the user their category is invalid
pass
self.addListEntry(myCurrentKey, myCurrentValue)
self.leKey.setText('')
self.leValue.setText('')
self.updateControlsFromList()
# prevents actions being handled twice
@pyqtSignature('')
def on_pbnRemove_clicked(self):
"""Automatic slot executed when the pbnRemove button is pressed.
It will remove any selected items in the keywords list.
Args:
None
Returns:
None.
Raises:
no exceptions explicitly raised."""
for myItem in self.lstKeywords.selectedItems():
self.lstKeywords.takeItem(self.lstKeywords.row(myItem))
self.leKey.setText('')
self.leValue.setText('')
self.updateControlsFromList()
def addListEntry(self, theKey, theValue):
"""Add an item to the keywords list given its key/value.
The key and value must both be valid, non empty strings
or an InvalidKVPException will be raised.
If an entry with the same key exists, it's value will be
replaced with theValue.
It will add the current key/value pair to the list if it is not
already present. The kvp will also be stored in the data of the
listwidgetitem as a simple string delimited with a bar ('|').
Args:
* theKey - string representing the key part of the key
value pair (kvp)
* theValue - string representing the value part of the key
value pair (kvp)
Returns:
None.
Raises:
no exceptions explicitly raised."""
if theKey is None or theKey == '':
return
if theValue is None or theValue == '':
return
# make sure that both key and value is string
theKey = str(theKey)
theValue = str(theValue)
myMessage = ''
if ':' in theKey:
theKey = theKey.replace(':', '.')
myMessage = self.tr('Colons are not allowed, replaced with "."')
if ':' in theValue:
theValue = theValue.replace(':', '.')
myMessage = self.tr('Colons are not allowed, replaced with "."')
if myMessage == '':
self.lblMessage.setText('')
self.lblMessage.hide()
else:
self.lblMessage.setText(myMessage)
self.lblMessage.show()
myItem = QtGui.QListWidgetItem(theKey + ':' + theValue)
# We are going to replace, so remove it if it exists already
self.removeItemByKey(theKey)
myData = theKey + '|' + theValue
myItem.setData(QtCore.Qt.UserRole, myData)
self.lstKeywords.insertItem(0, myItem)
def setCategory(self, theCategory):
"""Set the category radio button based on theCategory.
Args:
theCategory - a string which must be either 'hazard' or 'exposure'
or 'postprocessing'.
Returns:
False if the radio button could not be updated
Raises:
no exceptions explicitly raised."""
# convert from QString if needed
myCategory = str(theCategory)
if self.getValueForKey('category') == myCategory:
#nothing to do, go home
return True
if myCategory not in ['hazard', 'exposure', 'postprocessing']:
# .. todo:: report an error to the user
return False
# Special case when category changes, we start on a new slate!
if myCategory == 'hazard':
# only cause a toggle if we actually changed the category
# This will only really be apparent if user manually enters
# category as a keyword
self.reset()
self.radHazard.blockSignals(True)
self.radHazard.setChecked(True)
self.radHazard.blockSignals(False)
self.removeItemByKey('subcategory')
self.removeItemByKey('datatype')
self.addListEntry('category', 'hazard')
myList = self.standardHazardList
self.setSubcategoryList(myList)
elif myCategory == 'exposure':
self.reset()
self.radExposure.blockSignals(True)
self.radExposure.setChecked(True)
self.radExposure.blockSignals(False)
self.removeItemByKey('subcategory')
self.removeItemByKey('unit')
self.addListEntry('category', 'exposure')
myList = self.standardExposureList
self.setSubcategoryList(myList)
else:
self.reset()
self.radPostprocessing.blockSignals(True)
self.radPostprocessing.setChecked(True)
self.radPostprocessing.blockSignals(False)
self.removeItemByKey('subcategory')
self.addListEntry('category', 'postprocessing')
return True
def reset(self, thePrimaryKeywordsOnlyFlag=True):
"""Reset all controls to a blank state.
Args:
thePrimaryKeywordsOnlyFlag - if True (the default), only
reset Subcategory, datatype and units.
Returns:
None
Raises:
no exceptions explicitly raised."""
self.cboSubcategory.clear()
self.removeItemByKey('subcategory')
self.removeItemByKey('datatype')
self.removeItemByKey('unit')
if not thePrimaryKeywordsOnlyFlag:
# Clear everything else too
self.lstKeywords.clear()
self.leKey.clear()
self.leValue.clear()
self.lePredefinedValue.clear()
self.leTitle.clear()
def removeItemByKey(self, theKey):
"""Remove an item from the kvp list given its key.
Args:
theKey - key of item to be removed.
Returns:
None
Raises:
no exceptions explicitly raised."""
for myCounter in range(self.lstKeywords.count()):
myExistingItem = self.lstKeywords.item(myCounter)
myText = myExistingItem.text()
myTokens = myText.split(':')
if len(myTokens) < 2:
break
myKey = myTokens[0]
if myKey == theKey:
# remove it since the key is already present
self.lstKeywords.takeItem(myCounter)
break
def removeItemByValue(self, theValue):
"""Remove an item from the kvp list given its key.
Args:
theValue - value of item to be removed.
Returns:
None
Raises:
no exceptions explicitly raised."""
for myCounter in range(self.lstKeywords.count()):
myExistingItem = self.lstKeywords.item(myCounter)
myText = myExistingItem.text()
myTokens = myText.split(':')
myValue = myTokens[1]
if myValue == theValue:
# remove it since the key is already present
self.lstKeywords.takeItem(myCounter)
break
def getValueForKey(self, theKey):
"""Check if our key list contains a specific key,
and return its value if present.
Args:
theKey- String representing the key to search for
Returns:
Value of key if matched otherwise none
Raises:
no exceptions explicitly raised."""
for myCounter in range(self.lstKeywords.count()):
myExistingItem = self.lstKeywords.item(myCounter)
myText = myExistingItem.text()
myTokens = myText.split(':')
myKey = str(myTokens[0]).strip()
myValue = str(myTokens[1]).strip()
if myKey == theKey:
return myValue
return None
def loadStateFromKeywords(self):
"""Set the ui state to match the keywords of the
currently active layer.
Args:
None
Returns:
None.
Raises:
no exceptions explicitly raised."""
# In case the layer has no keywords or any problem occurs reading them,
# start with a blank slate so that subcategory gets populated nicely &
# we will assume exposure to start with.
myKeywords = {'category': 'exposure'}
try:
# Now read the layer with sub layer if needed
myKeywords = self.keywordIO.readKeywords(self.layer)
except (InvalidParameterException, HashNotFoundException):
pass
myLayerName = self.layer.name()
if 'title' not in myKeywords:
self.leTitle.setText(myLayerName)
self.lblLayerName.setText(self.tr('Keywords for %s' % myLayerName))
#if we have a category key, unpack it first so radio button etc get set
if 'category' in myKeywords:
self.setCategory(myKeywords['category'])
myKeywords.pop('category')
for myKey in myKeywords.iterkeys():
self.addListEntry(myKey, str(myKeywords[myKey]))
# now make the rest of the safe_qgis reflect the list entries
self.updateControlsFromList()
def updateControlsFromList(self):
"""Set the ui state to match the keywords of the
currently active layer.
Args:
None
Returns:
None.
Raises:
no exceptions explicitly raised."""
mySubcategory = self.getValueForKey('subcategory')
myUnits = self.getValueForKey('unit')
myType = self.getValueForKey('datatype')
myTitle = self.getValueForKey('title')
if myTitle is not None:
self.leTitle.setText(myTitle)
elif self.layer is not None:
myLayerName = self.layer.name()
self.lblLayerName.setText(self.tr('Keywords for %s' % myLayerName))
else:
self.lblLayerName.setText('')
if not isLayerPolygonal(self.layer):
self.radPostprocessing.setEnabled(False)
#adapt gui if we are in postprocessing category
self.togglePostprocessingWidgets()
if self.radExposure.isChecked():
if mySubcategory is not None and myType is not None:
self.setSubcategoryList(self.standardExposureList,
mySubcategory + ' [' + myType + ']')
elif mySubcategory is not None:
self.setSubcategoryList(self.standardExposureList,
mySubcategory)
else:
self.setSubcategoryList(self.standardExposureList,
self.tr('Not Set'))
elif self.radHazard.isChecked():
if mySubcategory is not None and myUnits is not None:
self.setSubcategoryList(self.standardHazardList,
mySubcategory + ' [' + myUnits + ']')
elif mySubcategory is not None:
self.setSubcategoryList(self.standardHazardList,
mySubcategory)
else:
self.setSubcategoryList(self.standardHazardList,
self.tr('Not Set'))
self.resizeDialog()
def resizeDialog(self):
QtCore.QCoreApplication.processEvents()
LOGGER.debug('adjust ing dialog size')
self.adjustSize()
# prevents actions being handled twice
@pyqtSignature('QString')
def on_leTitle_textEdited(self, theText):
"""Update the keywords list whenver the user changes the title.
This slot is not called is the title is changed programmatically.
Args:
None
Returns:
dict - a dictionary of keyword reflecting the state of the dialog.
Raises:
no exceptions explicitly raised."""
self.addListEntry('title', str(theText))
def getKeywords(self):
"""Obtain the state of the dialog as a keywords dict
Args:
None
Returns:
dict - a dictionary of keyword reflecting the state of the dialog.
Raises:
no exceptions explicitly raised."""
#make sure title is listed
if str(self.leTitle.text()) != '':
self.addListEntry('title', str(self.leTitle.text()))
myKeywords = {}
for myCounter in range(self.lstKeywords.count()):
myExistingItem = self.lstKeywords.item(myCounter)
myText = myExistingItem.text()
myTokens = myText.split(':')
myKey = str(myTokens[0]).strip()
myValue = str(myTokens[1]).strip()
myKeywords[myKey] = myValue
return myKeywords
def accept(self):
"""Automatic slot executed when the ok button is pressed.
It will write out the keywords for the layer that is active.
Args:
None
Returns:
None.
Raises:
no exceptions explicitly raised."""
self.applyPendingChanges()
myKeywords = self.getKeywords()
try:
self.keywordIO.writeKeywords(theLayer=self.layer,
theKeywords=myKeywords)
except InaSAFEError, e:
QtGui.QMessageBox.warning(self, self.tr('InaSAFE'),
((self.tr('An error was encountered when saving the keywords:\n'
'%s' % str(getExceptionWithStacktrace(e))))))
if self.dock is not None:
self.dock.getLayers()
self.done(QtGui.QDialog.Accepted)
