def validate(self):
"""
Verifies contents displayed on mapping table in order to infer its validity
as datasource conversion map.
:return: (bool) map validity status.
"""
# validate map
msg = self.invalidatedReason()
if msg:
# if an invalidation reason was given, warn user and nothing else.
msgBar = QgsMessageBar(self)
# if window is resized, msgBar stays, not ideal, but works for now
# maybe we should connect to some parent resizing signal or something...
msgBar.resize(
QSize(self.geometry().size().width(),
msgBar.geometry().height()))
msgBar.pushMessage(self.tr('Warning!'),
msg,
level=Qgis.Warning,
duration=5)
QgsMessageLog.logMessage(msg, 'DSGTools Plugin', Qgis.Critical)
return msg == ''
class FMEManagerWidget(QWidget, FORM_CLASS):
def __init__(self, parent=None):
"""Constructor."""
super(FMEManagerWidget, self).__init__(parent=parent)
self.setupUi(self)
self._workspaceList = list()
self.paramWidgetMap = dict()
self.versionComboBox.addItems(["v1", "v2"])
self.messageBar = QgsMessageBar(self)
def clearLayout(self):
"""
Removes all inserted widgets from workspace's parameters from GUI.
"""
for i in range(self.verticalLayout_2.count()-1, -1, -1):
self.verticalLayout_2.itemAt(i).widget().setParent(None)
@pyqtSlot(int)
def on_workspaceComboBox_currentIndexChanged(self):
"""
Fetch necessary parameters from selected workspace and insert a
QLineEdit for each parameter.
"""
self.clearLayout()
workspace = self.getCurrentWorkspace()
key = "parameters" if self.version() == "v1" else "parametros"
_parameters = workspace.get(key, list())
parameters = filter(lambda x: x != "LOG_FILE", _parameters)
for parameter in parameters:
newLabel = QLabel(parameter)
self.verticalLayout_2.addWidget(newLabel)
newLineEdit = QLineEdit()
self.paramWidgetMap[parameter] = newLineEdit
self.verticalLayout_2.addWidget(newLineEdit)
def resizeEvent(self, e):
"""
Resize QgsMessageBar to widget's width
"""
self.messageBar.resize(
QSize(
self.geometry().size().width(),
30
)
)
def getProxyInfo(self):
"""
Reads Proxy settings as registered on QGIS settings.
:return: (tuple) the QGIS proxy mapping per schema and its
authentication object.
"""
if self.useProxy():
return Utils().get_proxy_config()
else:
return (None, None)
def version(self):
"""
Identifies the selected FME Manager from GUI.
:return: (str) FME Manager selected version.
"""
return self.versionComboBox.currentText()
def server(self):
"""
Identifies server provided by user from GUI.
:return: (str) server from which FME routines are read from.
"""
return self.serverLineEdit.text()
def useSsl(self):
"""
Identifies whether user intends to use SSL to request routines from FME
Manager server.
:return: (bool) whether SSL is going to be used as from GUI.
"""
return self.sslCheckBox.isChecked()
def useProxy(self):
"""
Identifies whether user intends to connect to FME Manager server behind
a proxy.
:return: (bool) whether Proxy is set. Proxy setup is read from
QSettings (QGIS settings).
"""
return self.sslCheckBox.isChecked()
def getWorkspacesFromServer(self):
"""
Reads all available workspaces from a filled server.
:return: (list-of-dict) list of available workspaces and its metadata.
"""
if self.version() == "v1":
url = "{server}/versions?last=true".format(server=self.server())
jsonKey = "data"
else:
url = "{server}/api/rotinas".format(server=self.server())
jsonKey = "dados"
try:
if not self.useProxy():
workspaceList = requests.get(
url,
timeout=8
).json()[jsonKey]
else:
proxyInfo, proxyAuth = self.getProxyInfo()
workspaceList = requests.get(
url,
proxies=proxyInfo,
auth=proxyAuth,
timeout=8
).json()[jsonKey]
except ReadTimeout:
self.messageBar.pushMessage(
self.tr("Connection timed out."), level=Qgis.Warning)
workspaceList = list()
except ConnectTimeout:
self.messageBar.pushMessage(
self.tr("Connection timed out (max attempts)."),
level=Qgis.Warning
)
workspaceList = list()
except InvalidSchema:
self.messageBar.pushMessage(
self.tr("Missing connection schema (e.g.'http', etc)."),
level=Qgis.Warning
)
workspaceList = list()
except BaseException as e:
self.messageBar.pushMessage(
self.tr("Unexpected error while trying to reach server. "
"Check your parameters. Error message: {}".format(e)),
level=Qgis.Warning
)
workspaceList = list()
return workspaceList
def setWorkspaces(self, workspaces):
"""
Sets a list of workspaces to the GUI.
:param workspaces: (list-of-str)
"""
self.workspaceComboBox.clear()
if workspaces:
self.workspaceComboBox.addItems(workspaces)
def getCurrentWorkspace(self):
"""
Reads currently selected workspace from GUI.
:return: (dict) selected workspace's metadata map.
"""
idx = self.workspaceComboBox.currentIndex()
try:
return self._workspaceList[idx]
except IndexError:
return dict()
@pyqtSlot(bool)
def on_loadPushButton_clicked(self):
"""
Sync available workspaces from server and display
these workspaces on workspaceComboBox
"""
self.workspaceComboBox.clear()
self._workspaceList = self.getWorkspacesFromServer()
if self.version() == "v1":
workspaceNameKey = "workspace_name"
workspaceDescKey = "workspace_description"
else:
workspaceNameKey = "rotina"
workspaceDescKey = "descricao"
for workspace in self._workspaceList:
self.workspaceComboBox.addItem(
"{name} ({description})".format(
name=workspace[workspaceNameKey],
description=workspace[workspaceDescKey]
)
)
def validate(self, pushAlert=False):
"""
Validates fields. Returns True if all information are filled correctly.
:param pushAlert: (bool) whether invalidation reason should be
displayed on the widget.
:return: (bool) whether set of filled parameters if valid.
"""
proxyInfo, _ = self.getProxyInfo()
if self.useProxy() and not proxyInfo:
if pushAlert:
self.messageBar.pushMessage(
self.tr("Proxy usage is set but no QGIS proxy settings "
"was found."),
level=Qgis.Warning
)
return False
if self.server() == "":
if pushAlert:
self.messageBar.pushMessage(
self.tr("URL to FME Manager server was not provided."),
level=Qgis.Warning
)
return False
return True
def getParameters(self):
"""
Returns necessary parameters for running the algorithm
"""
workspace = self.getCurrentWorkspace()
workspaceId = workspace.get("id", None)
version = self.version()
parameters = {
"parameters" if version == "v1" else "parametros": {
key: value.text() for key, value in self.paramWidgetMap.items()
}
}
proxyInfo, proxyAuth = self.getProxyInfo()
return {
"version": version,
"server": self.server(),
"workspace_id": workspaceId,
"parameters": parameters,
"auth": proxyAuth,
"proxy_dict": proxyInfo,
"use_ssl": self.useSsl(),
"use_proxy": self.useProxy()
}
class ButtonSetupWidget(QDialog, FORM_CLASS):
def __init__(self, parent=None, buttonSetup=None):
"""
Class constructor.
:param parent: (QtWidgets.*) any widget that 'contains' this tool.
:param buttonSetup: (CustomButtonSetup) object that handles all
buttons displayed and configured through this GUI.
"""
super(ButtonSetupWidget, self).__init__(parent)
self.setupUi(self)
self.messageBar = QgsMessageBar(self)
self.setup = CustomButtonSetup()
if buttonSetup:
self.setSetup(buttonSetup)
self.buttonComboBox.addItem(self.tr("No button selected"))
self.tableWidget.verticalHeader().sectionDoubleClicked.connect(
self.setButtonFromRow)
bEnabled = self.buttonComboBox.currentIndex() > 0
for w in ("savePushButton", "undoPushButton", "removePushButton",
"buttonPropWidget"):
getattr(self, w).setEnabled(bEnabled)
# making the button selection to stand out a little bit
if "Night Mapping" in app.activeThemePath():
ss = """QHeaderView::section:checked
{ color:black; background-color:white; }"""
else:
ss = """QHeaderView::section:checked
{ color:gray; background-color:black; }"""
self.tableWidget.setStyleSheet(ss)
def raiseWarning(self, msg, title=None, lvl=None, duration=None):
"""
Raises a warning message to the user on a message bar and logs it to
QGIS logger.
:param msg: (str) message to be displayed.
:param title: (str) pre-message on the warning bar.
:param lvl: (int) warning level enumerator as from Qgis module.
:param duration: (int) warning message display time.
"""
self.messageBar.pushMessage(title or self.tr('Invalid workflow'),
msg,
level=lvl or Qgis.Warning,
duration=duration or 5)
# msg = self.tr("Buttons setup definion invalid: {m}").format(m=msg)
QgsMessageLog.logMessage(msg, 'DSGTools Plugin', Qgis.Warning)
def resizeEvent(self, e):
"""
Reimplementation in order to use this window's resize event.
On this object, this method makes sure that message bar is always the
same size as the window.
:param e: (QResizeEvent) resize event.
"""
self.messageBar.resize(
QSize(
self.geometry().size().width(),
40 # this felt nicer than the original height (30)
))
def clear(self):
"""
Clears all data filled into GUI.
"""
self.buttonComboBox.clear()
for button in self.registeredButtonNames():
self.removeButtonFromTable(self.getButtonByName(button))
self.setup.removeButton(button)
self.buttonComboBox.removeItem(
self.buttonComboBox.findText(button))
def setSetupName(self, name):
"""
Defines setup's name on GUI.
:param name: (str) name to be set.
"""
self.setupNameLineEdit.setText(name)
def setupName(self):
"""
Retrieves button's setup name read from GUI.
:return: (str) name for button's setup.
"""
return self.setupNameLineEdit.text()
def setCurrentSetupName(self, name):
"""
Defines current button's setup name.
:param name: (str) name for button's setup.
"""
return self.setup.setName(name)
def currentSetupName(self):
"""
Retrieves current button's setup name.
:param name: (str) name for button's setup.
"""
return self.setup.name()
def setDescription(self, desc):
"""
Defines setup's description on GUI.
:param desc: (str) description to be set.
"""
self.textEdit.setText(desc)
def description(self):
"""
Reads button's setup description from GUI.
:return: (str) description for button's setup.
"""
return self.textEdit.toPlainText()
def setCurrentDescription(self, name):
"""
Defines current button's setup description.
:param name: (str) description for button's setup.
"""
self.setup.setDescription(name)
def currentDescription(self):
"""
Retrieves current button's description.
:param name: (str) description for button's setup.
"""
return self.setup.description()
def setDynamicShortcut(self, ds):
"""
Defines setup's dynamic shortcut option on GUI.
:param ds: (bool) dynamic shortcut assignment option.
"""
self.dsCheckBox.setChecked(ds)
def dynamicShortcut(self):
"""
Retrieves button's setup dynamic shortcut option read from GUI.
:param ds: (bool) dynamic shortcut assignment option.
"""
return self.dsCheckBox.isChecked()
def setCurrentDynamicShortcut(self, ds):
"""
Defines current button's setup dynamic shortcut option.
:param ds: (bool) dynamic shortcut assignment option.
"""
self.setup.setDynamicShortcut(ds)
def currentDynamicShortcut(self):
"""
Retrieves current button's description.
:return: (bool) dynamic shortcut assignment option.
:param name: (str) description for button's setup.
"""
return self.setup.dynamicShortcut()
def readSetup(self):
"""
Reads setup from GUI.
:return: (CustomButtonSetup) reads all data from GUI as a setup.
"""
s = CustomButtonSetup()
s.setName(self.setupName())
s.setDescription(self.description())
for row in range(self.tableWidget.rowCount()):
s.addButton(self.buttonFromRow(row).properties())
s.setDynamicShortcut(self.dynamicShortcut())
return s
def setSetup(self, newSetup):
"""
Imports buttons setup definitions from another buttons setup.
:param newSetup: (CustomButtonSetup) setup to be imported.
"""
self.buttonComboBox.blockSignals(True)
self.setSetupName(newSetup.name())
self.setCurrentSetupName(newSetup.name())
self.setDescription(newSetup.description())
self.setCurrentDescription(newSetup.description())
self.setDynamicShortcut(newSetup.dynamicShortcut())
self.setCurrentDynamicShortcut(newSetup.dynamicShortcut())
for button in newSetup.buttons():
self.addButton(button)
self.buttonComboBox.blockSignals(False)
def getButtonByName(self, name):
"""
Retrieves a registered button from its name.
:param name: (str) name for the requested button.
"""
return self.setup.button(name)
def setButtonName(self, name):
"""
Sets button name to GUI.
:param name: (str) name to be set to GUI.
"""
self.buttonPropWidget.setButtonName(name)
def buttonName(self):
"""
Reads button name from GUI.
:return: (str) button name read from GUI.
"""
return self.buttonPropWidget.buttonName()
def registeredButtonNames(self):
"""
All names for registered buttons on current profile.
:return: (list-of-str) list of button names.
"""
return self.setup.buttonNames()
def setDigitizingTool(self, tool):
"""
Sets button's digitizing tool to GUI.
:param tool: (str) a supported digitizing tool to be set.
"""
self.buttonPropWidget.setDigitizingTool(tool)
def digitizingTool(self):
"""
Reads current digitizing tool from GUI.
:return: (str) current digitizing tool.
"""
return self.buttonPropWidget.digitizingTool()
def setUseColor(self, useColor):
"""
Sets button's digitizing tool to GUI.
:param useColor: (bool) whether button should use a custom color
palette.
"""
self.buttonPropWidget.setUseColor(useColor)
def useColor(self):
"""
Reads whether button will have a custom color from GUI.
:return: (bool) whether button should use a custom color
palette.
"""
return self.buttonPropWidget.useColor()
def setColor(self, color):
"""
Sets custom color to the color widget.
:param color: (str/tuple) color to be set.
"""
self.buttonPropWidget.setColor(color)
def color(self):
"""
Reads custom color to be set to widget as read from GUI.
:return: (tuple) color to be used.
"""
return self.buttonPropWidget.color()
def setUseToolTip(self, useToolTip):
"""
Sets button's digitizing tool to GUI.
:param useToolTip: (bool) whether button will have a tool tip assigned.
"""
self.buttonPropWidget.setUseToolTip(useToolTip)
def useToolTip(self):
"""
Reads if the button will have a tool tip assigned to it from GUI.
:return: (bool) whether the button will have a tool tip assigned.
"""
return self.buttonPropWidget.useToolTip()
def setToolTip(self, tooltip):
"""
Sets a tool tip for the active button widget.
:param tooltip: (str) tool tip to be set.
"""
self.buttonPropWidget.setToolTip(tooltip)
def toolTip(self):
"""
Reads the tool tip for the button from GUI.
:param tooltip: (str) tool tip to be used.
"""
return self.buttonPropWidget.toolTip()
def setUseCategory(self, useCat):
"""
Sets whether button should be assigned a category/group on GUI.
:param useCat: (bool) whether button will have a category assigned.
"""
self.buttonPropWidget.setUseCategory(useCat)
def useCategory(self):
"""
Reads button's category/group from GUI.
:return: (bool) whether button will have a category assigned.
"""
return self.buttonPropWidget.useCategory()
def setCategory(self, cat):
"""
Assigns a group to the active button.
:param cat: (str) category to be set.
"""
self.buttonPropWidget.setCategory(cat)
def category(self):
"""
Reads the assigned category/group to the active button from GUI.
:return: (str) category to be used.
"""
return self.buttonPropWidget.category()
def setUseKeywords(self, useKw):
"""
Sets whether active button should have keywords for button searching.
:param useKw: (bool) whether button will have keywords assigned to it.
"""
self.buttonPropWidget.setUseKeywords(useKw)
def useKeywords(self):
"""
Reads whether active button should have keywords for button searching
from GUI.
:return: (bool) whether button will have keywords assigned to it.
"""
return self.buttonPropWidget.useKeywords()
def setKeywords(self, kws):
"""
Sets button's keywords for button searching.
:param kws: (set-of-str) set of keywords to be assigned to the button.
"""
self.buttonPropWidget.setKeywords(kws)
def keywords(self):
"""
Reads button's keywords for button searching from GUI.
:return: (set-of-str) set of keywords to be assigned to the button.
"""
return self.buttonPropWidget.keywords()
def setUseShortcut(self, useShortcut):
"""
Sets whether active button should have a shortcut assigned to it.
:param useShortcut: (bool) whether button will have a shortcut assigned.
"""
self.buttonPropWidget.setUseShortcut(useShortcut)
def useShortcut(self):
"""
Reads whether active button should have a shortcut assigned to it from GUI.
:return: (bool) whether button will have a shortcut assigned.
"""
return self.buttonPropWidget.useShortcut()
def setShortcurt(self, s, autoReplace):
"""
Assigns a shortcut to trigger active button's action.
:param s: (str) new shortcut to be set.
:param autoReplace: (bool) whether a confirmation from the user is
necessary in order to replace existing shortcuts.
"""
self.buttonPropWidget.setShortcurt(s, autoReplace)
def shortcut(self):
"""
Assigned shortcut read from GUI.
:return: (str) shortcut to be used.
"""
return self.buttonPropWidget.shorcut()
def setOpenForm(self, openForm):
"""
Defines whether (re)classification tool will open feature form while
being used.
:param openForm: (bool) whether feature form should be opened.
"""
self.buttonPropWidget.setOpenForm(openForm)
def openForm(self):
"""
Defines whether (re)classification tool will open feature form while
being used.
:return: (bool) whether feature form should be opened.
"""
return self.buttonPropWidget.openForm()
def setAttributeMap(self, attrMap):
"""
Sets the attribute value map for current button to GUI.
:param attrMap: (dict) a map from each field and its value to be set.
"""
self.buttonPropWidget.setAttributeMap(attrMap)
def attributeMap(self):
"""
Reads the field map data and set it to a button attribute map format.
:return: (dict) read attribute map.
"""
return self.buttonPropWidget.attributeMap()
def setLayer(self, layer):
"""
Sets current layer selection on GUI.
:param layer: (str) name for the layer to be set.
"""
self.buttonPropWidget.setLayer(layer)
def layer(self):
"""
Reads current layer selection from GUI.
:return: (str) name for the selected layer.
"""
self.buttonPropWidget.layer()
def currentButton(self):
"""
Retrives button active on GUI that has a saved state (on its last saved
state).
:return: (CustomFeatureButton) current button.
"""
return self.buttonPropWidget.currentButton()
def readButton(self):
"""
Reads current data on GUI and gets a button with those properties.
:return: (CustomFeatureButton) current button as from GUI.
"""
return self.buttonPropWidget.readButton()
def buttonIsModified(self):
"""
Checks whether current button is modified.
:return: (bool) whether button is modified.
"""
return self.currentButton() != self.readButton()
def updateButton(self, buttonName, newProps):
"""
Updates a registered button with a new set of properties.
:param button: (str) name for the button to be updated.
:param newProps: (dict) new set of properties.
"""
self.setup.updateButton(buttonName, newProps)
def confirmAction(self, msg, title=None, showNo=True):
"""
Raises a message box that asks for user confirmation.
:param msg: (str) message requesting for confirmation to be shown.
:param showNo: (bool) whether No button should be exposed.
:return: (bool) whether action was confirmed.
"""
return self.buttonPropWidget.confirmAction(msg, title, showNo)
def validate(self):
"""
Validates current input data, giving invalidation reason.
:return: (str) invalidation reason.
"""
if self.setupName() == "":
return self.tr("No name provided for current setup.")
buttons = self.readSetup().buttons()
if not buttons:
return self.tr("Please register at least one button.")
# for button in buttons:
# # validate attribute map
# pass
return ""
def isValid(self):
"""
Validates current input data, giving invalidation reason.
:return: (bool) current input data validity.
"""
if self.setupName() == "":
return False
buttons = self.readSetup().buttons()
if not buttons:
return False
# for button in buttons:
# # validate attribute map
# pass
return True
@pyqtSlot(int, name="on_buttonComboBox_currentIndexChanged")
def setCurrentButton(self, button):
"""
Sets button properties to the GUI.
:param button: (CustomFeatureButton) button to be set to the GUI.
"""
if isinstance(button, int):
if button <= 0:
button = CustomFeatureButton()
button.setName("")
else:
# table row is less 1 due to "no button" option
button = self.buttonFromRow(button - 1)
if button.name() not in self.registeredButtonNames():
# create a new one with that button?
pass
self.buttonComboBox.setCurrentText(button.name())
bEnabled = self.buttonComboBox.currentIndex() > 0
for w in ("savePushButton", "undoPushButton", "removePushButton",
"buttonPropWidget"):
getattr(self, w).setEnabled(bEnabled)
self.buttonPropWidget.setButton(button)
@pyqtSlot(bool, name="on_savePushButton_clicked")
def updateCurrentButton(self, props=None):
"""
Current data will be stored as current button's properties.
:param props: (dict) a map to button's properties to be updated.
"""
if isinstance(props, bool) or props is None:
# if button pressing was the triggering event, current data will be
# store into current button
props = self.readButton().properties()
prevName = self.currentButton().name()
button = self.getButtonByName(prevName)
self.updateButton(prevName, props)
newName = button.name()
self.buttonPropWidget.button = button
if prevName != newName:
idx = self.buttonComboBox.findText(prevName)
self.buttonComboBox.setItemText(idx, newName)
self.setCurrentButton(button)
@pyqtSlot(bool, name="on_undoPushButton_clicked")
def undoButtonModifications(self):
"""
Restores stored data from current button and sets it to GUI.
"""
self.buttonPropWidget.setButton(self.currentButton())
@pyqtSlot(bool, name="on_addPushButton_clicked")
def addButton(self, button=None):
"""
Adds a button to the setup.
:param button: (CustomFeatureButton) a pre-existent button to be set.
:return: (CustomFeatureButton) added button.
"""
if button is not None and not isinstance(button, bool):
buttonName = button.name()
if buttonName in self.registeredButtonNames():
msg = self.tr("Button {b} already exists. Would you like to "
"replace it?").format(b=buttonName)
cnf = self.confirmAction(msg,
self.tr("Replace existing button"))
if not cnf:
return self.getButtonByName(buttonName)
self.updateButton(buttonName, button.properties())
else:
props = button.properties()
button = self.setup.newButton()
self.buttonComboBox.addItem(buttonName)
self.updateButton(button.name(), props)
# we want the button passed by reference from setup
button = self.getButtonByName(buttonName)
else:
button = self.setup.newButton()
self.buttonComboBox.addItem(button.name())
self.setCurrentButton(button)
self.addButtonToTable(button)
return button
@pyqtSlot(bool, name="on_removePushButton_clicked")
def removeButton(self):
"""
Removes the current button from setup.
"""
name = self.buttonName()
txt = self.tr("Confirm button '{b}' removal?").format(b=name)
if name == "":
# ignore the "Select a button..."
return
self.removeButtonFromTable(self.currentButton())
self.setup.removeButton(name)
self.buttonComboBox.removeItem(self.buttonComboBox.findText(name))
def buttonFromRow(self, row):
"""
Retrieves the button object from table row.
:param row: (int) target row to get its button.
:return: (CustomFeatureButton) retrieved button.
"""
# combo box includes "no button", table does not -> row + 1
return self.getButtonByName(self.buttonComboBox.itemText(row + 1))
def setButtonFromRow(self, row):
"""
Fills GUI with a button's properties from its row.
:param row: (int) target row to get its button.
"""
b = self.getButtonByName(self.buttonComboBox.itemText(row + 1))
self.setCurrentButton(b)
def addButtonToTable(self, button):
"""
Adds widget to table widget.
:param button: (CustomFeatureButton) button to have its widget added.
"""
row = self.tableWidget.rowCount()
self.tableWidget.insertRow(row)
self.tableWidget.setCellWidget(row, 0, button.newWidget())
def removeButtonFromTable(self, button):
"""
Removes the button widget from buttons table.
:param button: (CustomFeatureButton) button to be removed.
"""
name = button.displayName()
for row in range(self.tableWidget.rowCount()):
bName = self.tableWidget.cellWidget(row, 0).text().replace("&", "")
if bName == name:
self.tableWidget.removeRow(row)
return
def readButtonTable(self):
"""
Reads all registered buttons from button table and returns it, in
order.
:return: (list-of-CustomFeature) ordered buttons.
"""
buttons = list()
count = self.tableWidget.rowCount()
if count > 0:
for row in range(count):
buttons.append(
self.tableWidget.cellWidget(row, 0).text()\
.rsplit(" [", 1)[0].replace("&", "")
) # Qt mnemonic shortcut for it widgets introduces "&"...
return buttons
def buttonsOrder(self):
"""
Retrieves button order to be used for button setup.
:return: (dict) a map from button name to its position on GUI.
"""
buttons = dict()
for row in range(self.tableWidget.rowCount()):
button = self.tableWidget.cellWidget(row, 0).text()\
.rsplit(" [", 1)[0].replace("&", "")
buttons[button] = row
return buttons
def selectedIndexes(self):
"""
:return: (list-of-QModelIndex) table's selected indexes.
"""
return self.tableWidget.selectedIndexes()
def selectedRows(self, reverseOrder=False):
"""
List of all rows that have selected items on the table.
:param reverOrder: (bool) indicates if the row order is reversed.
:return: (list-of-int) ordered list of selected rows' indexes.
"""
rows = self.tableWidget.selectionModel().selectedRows()
return sorted(set(i.row() for i in rows), reverse=reverseOrder)
def selectedColumns(self, reverseOrder=False):
"""
List of all columns that have selected items on the table.
:param reverOrder: (bool) indicates if the column order is reversed.
:return: (list-of-int) ordered list of selected columns' indexes.
"""
return sorted(set(i.column() for i in self.selectedIndexes()),
reverse=reverseOrder)
def selectRow(self, row):
"""
Clears all selected rows and selects row.
:param row: (int) index for the row to be select.
"""
self.clearRowSelection()
self.addRowToSelection(row)
def addRowToSelection(self, row):
"""
Adds a row to selection.
:param row: (int) index for the row to be added to selection.
"""
if row not in self.selectedRows():
self.tableWidget.setSelectionMode(QAbstractItemView.MultiSelection)
self.tableWidget.selectRow(row)
self.tableWidget.setSelectionMode(
QAbstractItemView.ExtendedSelection)
def removeRowFromSelection(self, row):
"""
Removes a row from selection.
:param row: (int) index for the row to be removed from selection.
"""
if row in self.selectedRows():
self.tableWidget.setSelectionMode(QAbstractItemView.MultiSelection)
self.tableWidget.selectRow(row)
self.tableWidget.setSelectionMode(
QAbstractItemView.ExtendedSelection)
def clearRowSelection(self):
"""
Removes all selected rows from selection.
"""
for row in self.selectedRows():
self.removeRowFromSelection(row)
def moveRowUp(self, row):
"""
Moves a row one position up, if possible.
:param row: (int) row be moved.
"""
if row <= 0:
return
button = self.buttonFromRow(row)
upperButton = self.buttonFromRow(row - 1)
self.tableWidget.setCellWidget(row - 1, 0, button.newWidget())
self.buttonComboBox.setItemText(row, button.name())
self.tableWidget.setCellWidget(row, 0, upperButton.newWidget())
self.buttonComboBox.setItemText(row + 1, upperButton.name())
self.addRowToSelection(row - 1)
self.removeRowFromSelection(row)
def moveRowDown(self, row):
"""
Moves a row one position up, if possible.
:param row: (int) row be moved.
"""
if row >= self.tableWidget.rowCount() - 1:
return
button = self.buttonFromRow(row)
lowerButton = self.buttonFromRow(row + 1)
self.tableWidget.setCellWidget(row + 1, 0, button.newWidget())
self.buttonComboBox.setItemText(row + 1 + 1, button.name())
self.tableWidget.setCellWidget(row, 0, lowerButton.newWidget())
self.buttonComboBox.setItemText(row + 1, lowerButton.name())
self.addRowToSelection(row + 1)
self.removeRowFromSelection(row)
@pyqtSlot()
def on_moveUpPushButton_clicked(self):
"""
Method triggered when move row up button is clicked.
"""
rows = self.selectedRows()
if not rows:
return
for row in self.selectedRows():
if row - 1 in rows:
# rows is a copy of selected rows that is updated after the
# item is moved
continue
self.moveRowUp(row)
if row != 0:
# this row is never aftected, hence it is "fixed"
rows.remove(row)
row = max(self.selectedRows())
self.setCurrentButton(self.buttonFromRow(row))
@pyqtSlot()
def on_moveDownPushButton_clicked(self):
"""
Method triggered when move row down button is clicked.
"""
rows = self.selectedRows(True)
if not rows:
return
lastRow = self.tableWidget.rowCount() - 1
for row in self.selectedRows(True):
if row + 1 in rows:
continue
self.moveRowDown(row)
if row != lastRow:
rows.remove(row)
row = max(self.selectedRows())
self.setCurrentButton(self.buttonFromRow(row))
@pyqtSlot()
def on_okPushButton_clicked(self):
"""
Closes setup dialog and returns a confirmation code.
:return: (int) confirmation code.
"""
if not self.isValid():
msg = self.tr("Invalid input data: {r}").format(r=self.validate())
self.raiseWarning(msg)
return
msg = self.tr("Current button has been modified and not saved. Would "
"you like to save it?")
title = self.tr("Unsaved modifications")
if self.buttonIsModified() and self.confirmAction(msg, title):
self.updateCurrentButton()
self.setCurrentSetupName(self.setupName())
self.setCurrentDescription(self.description())
self.setCurrentDynamicShortcut(self.dynamicShortcut())
self.done(1)
@pyqtSlot()
def on_cancelPushButton_clicked(self):
"""
Closes setup dialog and returns a refusal code.
:return: (int) confirmation code.
"""
self.done(0)
def state(self):
"""
Exports current setup's state as read from the GUI.
:return: (dict) a map to tool's current state.
"""
state = self.readSetup().state()
# buttons' keywords are stored as sets, which are not seriallizable
for idx, props in enumerate(state["buttons"]):
kws = props["keywords"]
state["buttons"][idx]["keywords"] = tuple(kws)
return {"state": state, "order": self.buttonsOrder()}
def setState(self, state):
"""
Restores the GUI to a given state.
:param state: (dict) a map to tool's state.
"""
self.setup.setState(state)
@pyqtSlot(bool, name="on_importPushButton_clicked")
def importSetup(self):
"""
Imports a setup from a file.
"""
fd = QFileDialog()
filename = fd.getOpenFileName(
caption=self.tr("Import a DSGTools Button Setup (set of buttons)"),
filter=self.tr("DSGTools Buttons Setup (*.setup)"))
filename = filename[0] if isinstance(filename, tuple) else filename
if not filename:
return
with open(filename, "r", encoding="utf-8") as fp:
state = json.load(fp)
order = [b[0] for b in \
sorted(state["order"].items(), key=lambda i: i[1])]
state = state["state"]
# buttons' keywords are stored as tuple in order to be seriallizable
for idx, props in enumerate(state["buttons"]):
kws = props["keywords"]
state["buttons"][idx]["keywords"] = set(kws)
# tuples and list are misinterpreted when exported
col = props["color"]
state["buttons"][idx]["color"] = tuple(col)
self.clear()
self.setState(state)
self.buttonComboBox.blockSignals(True)
self.buttonComboBox.addItem(self.tr("No button selected"))
self.buttonComboBox.addItems(order)
for btn in order:
self.addButtonToTable(self.setup.button(btn))
self.buttonComboBox.blockSignals(False)
if order:
self.setCurrentButton(self.setup.button(order[0]))
else:
self.buttonComboBox.setCurrentIndex(0)
self.setCurrentButton(None)
self.setSetupName(self.setup.name())
self.setDescription(self.setup.description())
self.setDynamicShortcut(self.setup.dynamicShortcut())
msg = self.tr('Setup "{0}" imported from "{1}"')\
.format(self.setup.name(), filename)
self.raiseWarning(msg,
title=self.tr("Imported workflow"),
lvl=Qgis.Success)
@pyqtSlot(bool, name="on_exportPushButton_clicked")
def exportSetup(self):
"""
Exports current setup's saved state to a file.
:return: (bool) whether setup was exported.
"""
if not self.isValid():
msg = self.tr("Invalid input data: {r}").format(r=self.validate())
self.raiseWarning(msg)
return False
# add check of modified button in here
s = self.readSetup()
fd = QFileDialog()
filename = fd.getSaveFileName(
caption=self.tr("Export setup - {0}").format(s.name()),
filter=self.tr("DSGTools Buttons Setup (*.setup)"))
filename = filename[0] if isinstance(filename, tuple) else filename
if not filename:
return False
with open(filename, "w", encoding="utf-8") as fp:
fp.write(json.dumps(self.state(), sort_keys=True, indent=4))
res = os.path.exists(filename)
if res:
msg = self.tr('Setup "{0}" exported to "{1}"')\
.format(s.name(), filename)
self.raiseWarning(msg,
title=self.tr("Exported workflow"),
lvl=Qgis.Success)
return res
class CustomFeatureForm(QDialog, FORM_CLASS):
"""
Customized form tailor made for reclassification mode of DSGTools: Custom
Feature Tool Box. This form was copied from `Ferramentas de Produção` and
modified for the DSGTools plugin.
"""
def __init__(self, layer, layerMap, attributeMap=None, valueMaps=None):
"""
Class constructor.
:param layer: (QgsVectorLayer) layer that will receive the reclassified
features.
:param layerMap: (dict) a map from vector layer to feature list to be
reclassified (allocated to another layer).
:param attributeMap: (dict) a map from attribute name to its
(reclassified) value.
:param valueMaps: (dict) map of all value/relations maps set to layer's
fields. These maps will be used for domain checking
operations.
"""
super(CustomFeatureForm, self).__init__()
self.setupUi(self)
self._layer = layer
self.layerMap = layerMap
self.valueMaps = valueMaps or LayerHandler().valueMaps(layer)
self.attributeMap = attributeMap or dict()
self._layersWidgets = dict()
self.setupReclassifiedLayers()
self.widgetsLayout = QGridLayout(self.scrollAreaWidgetContents)
self._fieldsWidgets = dict()
self.setupFields()
self.setWindowTitle(self.tr("DSGTools Feature Reclassification Form"))
self.messageBar = QgsMessageBar(self)
def resizeEvent(self, e):
"""
Just make sure if any alert box is being displayed, it matches the
dialog size. Method reimplementation.
:param e: (QResizeEvent) resize event related to this widget resizing.
"""
self.messageBar.resize(
QSize(
self.geometry().size().width(),
40 # this felt nicer than the original height (30)
))
def setupReclassifiedLayers(self):
"""
Fills GUI with the data for reclassified data. Dialog should allow user
to choose whether he wants to reclassify all identified layers or just
part of it.
"""
layout = self.vLayout
for l, fl in self.layerMap.items():
cb = QCheckBox()
size = len(fl)
fCount = self.tr("features") if size > 1 else self.tr("feature")
cb.setText("{0} ({1} {2})".format(l.name(), size, fCount))
cb.setChecked(True)
# just to avoid reading the layout when reading the form
self._layersWidgets[l.name()] = cb
layout.addWidget(cb)
def fieldHasDomainMap(self, field):
"""
Identifies whether a given field has a value/relations map.
:param field: (QgsField) field to be checked.
:return: (bool) whether field has a value/relations map set.
"""
return field.name() in self.valueMaps
def getFieldComboBox(self, field):
"""
Provides a combo box containing all values possible for a field set to
have value/relations map value. This method also set a getValue and
setValue proxy that handles value management through its 'real' value.
E.G. a given domain {"Not available": 1, "Available": 2} shall have its
values set and read as '1' and '2', instead of either combo box's text
and index usually used. This also handles setting invalid value setting
attempts.
:param field: (QgsField) field to have its field's values exposed.
:return: (QComboBox) combo box widget filled with all possible values.
"""
cb = QComboBox()
# this methods assumes that if a field is used, than it has a value map
domain = self.valueMaps.get(field.name(), None)
inverseDomain = {v: k for k, v in domain.items()}
if not domain:
raise ValueError(
self.tr("Field {0} does not have a value/relations map")\
.format(field.name())
)
cb.addItems(list(domain.keys()))
def setValue(val):
"""val: field's real value"""
if val not in domain.values():
return
cb.setCurrentText(inverseDomain[val])
def value():
return domain[cb.currentText()]
cb.setValue = setValue
cb.value = value
return cb
def layer(self):
"""
Retrieves layer set to receive the reclassified features from the
other layers.
:return: (QgsVectorLayer) layer to get the newly reclassified features.
"""
return self._layer
def setupFields(self):
"""
Sets up all fields and fill up with available data on the attribute
map.
"""
utils = Utils()
row = 0 # in case no fields are provided
for row, f in enumerate(self.layer().fields()):
fName = f.name()
fMap = self.attributeMap.get(fName, None)
if fName in self.attributeMap:
fMap = self.attributeMap[fName]
if fMap["ignored"]:
w = QLineEdit()
w.setText(self.tr("Field is set to be ignored"))
value = None
enabled = False
else:
value = fMap["value"]
enabled = fMap["editable"]
if fMap["isPk"]:
# visually identify primary key attributes
text = '<p>{0} <img src=":/plugins/DsgTools/icons/key.png" '\
'width="16" height="16"></p>'.format(fName)
else:
text = fName
else:
value = None
enabled = True
text = fName
if fName in self.attributeMap and self.attributeMap[fName][
"ignored"]:
pass
if self.fieldHasDomainMap(f):
# this will provide the combo box already filled with the
# possible values for the provided field
w = self.getFieldComboBox(f)
# proxy method added on customized qcombobox
w.setValue(value)
elif utils.fieldIsBool(f):
w = QCheckBox()
w.setChecked(False if value is None else value)
elif utils.fieldIsFloat(f):
w = QDoubleSpinBox()
w.setValue(0 if value is None else value)
elif utils.fieldIsInt(f):
w = QSpinBox()
w.setValue(0 if value is None else value)
else:
w = QLineEdit()
w.setText("" if value is None else value)
w.setEnabled(enabled)
# also to make easier to read data
self._fieldsWidgets[fName] = w
label = QLabel(text)
label.setSizePolicy(QSizePolicy.Preferred, QSizePolicy.Preferred)
w.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Fixed)
self.widgetsLayout.addWidget(label, row, 0)
self.widgetsLayout.addWidget(w, row, 1)
self.widgetsLayout.addItem(
QSpacerItem(20, 40, QSizePolicy.Expanding, QSizePolicy.Expanding),
row + 1, 1, 1, 2) # row, col, rowSpan, colSpan
def updateAttributeMap(self):
"""
Reads all filled data and updated attribute map with such values.
"""
for fName, w in self._fieldsWidgets.items():
if not fName in self.attributeMap:
self.attributeMap[fName] = dict()
self.attributeMap[fName]["ignored"] = False
self.attributeMap[fName]["editable"] = True
if self.attributeMap[fName]["ignored"]:
continue
w = self._fieldsWidgets[fName]
if isinstance(w, QSpinBox) or isinstance(w, QDoubleSpinBox):
self.attributeMap[fName]["value"] = w.value()
elif isinstance(w, QCheckBox):
self.attributeMap[fName]["value"] = w.isChecked()
elif isinstance(w, QComboBox):
self.attributeMap[fName]["value"] = w.value()
else:
self.attributeMap[fName]["value"] = w.text()
def readSelectedLayers(self):
"""
Applies a filter over the layer/feature list map based on user
selection.
:return: (dict) filtered layer-feature list map.
"""
filtered = dict()
for l, fl in self.layerMap.items():
if self._layersWidgets[l.name()].isChecked():
filtered[l] = fl
return filtered
def readFieldMap(self):
"""
Reads filled data into the form and sets it to a map from field name to
field value to be set. Only fields allowed to be reclassified shall be
exported in this method.
:return: (dict) a map from field name to its output value.
"""
fMap = dict()
for fName, w in self._fieldsWidgets.items():
if not fName in self.attributeMap:
continue
w = self._fieldsWidgets[fName]
if isinstance(w, QSpinBox) or isinstance(w, QDoubleSpinBox):
fMap[fName] = w.value()
elif isinstance(w, QCheckBox):
fMap[fName] = w.isChecked()
elif isinstance(w, QComboBox):
fMap[fName] = w.value()
else:
fMap[fName] = w.text()
return fMap
@pyqtSlot()
def on_okPushButton_clicked(self):
"""
Verifies if at least one layer is selected and either warn user to
select one, or closes with status 1 ("OK").
"""
if len(self.readSelectedLayers()) > 0:
self.updateAttributeMap()
self.done(1)
else:
self.messageBar.pushMessage(
self.tr('Invalid layer selection'),
self.tr("select at least one layer for reclassification!"),
level=Qgis.Warning,
duration=5)
class CustomFeatureForm(QDialog, FORM_CLASS):
"""
Customized form tailor made for reclassification mode of DSGTools: Custom
Feature Tool Box. This form was copied from `Ferramentas de Produção` and
modified for the DSGTools plugin.
"""
def __init__(self, fields, layerMap, attributeMap=None):
"""
Class constructor.
:param fields: (QgsFields) set of fields that will be applied to new
feature(s).
:param layerMap: (dict) a map from vector layer to feature list to be
reclassified (allocated to another layer).
:param attributeMap: (dict) a map from attribute name to its
(reclassified) value.
"""
super(CustomFeatureForm, self).__init__()
self.setupUi(self)
self.fields = fields
self.layerMap = layerMap
self.attributeMap = attributeMap or dict()
self._layersWidgets = dict()
self.setupReclassifiedLayers()
self.widgetsLayout = QGridLayout(self.scrollAreaWidgetContents)
self._fieldsWidgets = dict()
self.setupFields()
self.setWindowTitle(self.tr("DSGTools Feature Reclassification Form"))
self.messageBar = QgsMessageBar(self)
def resizeEvent(self, e):
"""
Just make sure if any alert box is being displayed, it matches the
dialog size. Method reimplementation.
:param e: (QResizeEvent) resize event related to this widget resizing.
"""
self.messageBar.resize(
QSize(
self.geometry().size().width(),
40 # this felt nicer than the original height (30)
))
def setupReclassifiedLayers(self):
"""
Fills GUI with the data for reclassified data. Dialog should allow user
to choose whether he wants to reclassify all identified layers or just
part of it.
"""
layout = self.vLayout
for l, fl in self.layerMap.items():
cb = QCheckBox()
size = len(fl)
fCount = self.tr("features") if size > 1 else self.tr("feature")
cb.setText("{0} ({1} {2})".format(l.name(), size, fCount))
cb.setChecked(True)
# just to avoid reading the layout when reading the form
self._layersWidgets[l.name()] = cb
layout.addWidget(cb)
def setupFields(self):
"""
Setups up all fields and fill up with available data on the attribute
map.
"""
utils = Utils()
row = 0 # in case no fields are provided
for row, f in enumerate(self.fields):
fName = f.name()
fMap = self.attributeMap[fName] if fName in self.attributeMap \
else None
if fName in self.attributeMap:
fMap = self.attributeMap[fName]
if fMap["ignored"]:
w = QLineEdit()
w.setText(self.tr("Field is set to be ignored"))
value = None
enabled = False
else:
value = fMap["value"]
enabled = fMap["editable"]
if fMap["isPk"]:
# visually identify primary key attributes
text = '<p>{0} <img src=":/plugins/DsgTools/icons/key.png" '\
'width="16" height="16"></p>'.format(fName)
else:
text = fName
else:
value = None
enabled = True
text = fName
if fName in self.attributeMap and self.attributeMap[fName][
"ignored"]:
pass
elif utils.fieldIsFloat(f):
w = QDoubleSpinBox()
w.setValue(0 if value is None else value)
elif utils.fieldIsInt(f):
w = QSpinBox()
w.setValue(0 if value is None else value)
else:
w = QLineEdit()
w.setText("" if value is None else value)
w.setEnabled(enabled)
# also to make easier to read data
self._fieldsWidgets[fName] = w
label = QLabel(text)
label.setSizePolicy(QSizePolicy.Preferred, QSizePolicy.Preferred)
w.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Fixed)
self.widgetsLayout.addWidget(label, row, 0)
self.widgetsLayout.addWidget(w, row, 1)
self.widgetsLayout.addItem(
QSpacerItem(20, 40, QSizePolicy.Expanding, QSizePolicy.Expanding),
row + 1, 1, 1, 2) # row, col, rowSpan, colSpan
def updateAttributeMap(self):
"""
Reads all filled data and updated attribute map with such values.
"""
for fName, w in self._fieldsWidgets.items():
if not fName in self.attributeMap:
self.attributeMap[fName] = dict()
self.attributeMap[fName]["ignored"] = False
self.attributeMap[fName]["editable"] = True
if self.attributeMap[fName]["ignored"]:
continue
w = self._fieldsWidgets[fName]
if isinstance(w, QSpinBox) or isinstance(w, QDoubleSpinBox):
self.attributeMap[fName]["value"] = w.value()
else:
self.attributeMap[fName]["value"] = w.text()
def readSelectedLayers(self):
"""
Applies a filter over the layer/feature list map based on user
selection.
:return: (dict) filtered layer-feature list map.
"""
filtered = dict()
for l, fl in self.layerMap.items():
if self._layersWidgets[l.name()].isChecked():
filtered[l] = fl
return filtered
def readFieldMap(self):
"""
Reads filled data into the form and sets it to a map from field name to
field value to be set. Only fields allowed to be reclassified shall be
exported in this method.
:return: (dict) a map from field name to its output value.
"""
fMap = dict()
for fName, w in self._fieldsWidgets.items():
if not fName in self.attributeMap:
continue
w = self._fieldsWidgets[fName]
if isinstance(w, QSpinBox) or isinstance(w, QDoubleSpinBox):
fMap[fName] = w.value()
else:
fMap[fName] = w.text()
return fMap
@pyqtSlot()
def on_okPushButton_clicked(self):
"""
Verifies if at least one layer is selected and either warn user to
select one, or closes with status 1 ("OK").
"""
if len(self.readSelectedLayers()) > 0:
self.updateAttributeMap()
self.done(1)
else:
self.messageBar.pushMessage(
self.tr('Invalid layer selection'),
self.tr("select at least one layer for reclassification!"),
level=Qgis.Warning,
duration=5)
class EnforceSpatialRuleWrapper(WidgetWrapper):
__ATTRIBUTE_MAP_VERSION = 0.2
def __init__(self, *args, **kwargs):
super(EnforceSpatialRuleWrapper, self).__init__(*args, **kwargs)
self.messageBar = QgsMessageBar(self.panel)
self.panel.resizeEvent = self.resizeEvent
self._lastError = ""
def resizeEvent(self, e):
"""
Resize QgsMessageBar to widget's width
"""
self.messageBar.resize(
QSize(self.panel.parent().geometry().size().width(), 30))
def ruleNameWidget(self):
"""
Retrieves the widget for reading/setting rule name.
:return: (QLineEdit)
"""
le = QLineEdit()
le.setPlaceholderText(self.tr("Set a name for this spatial rule..."))
return le
def mapLayerComboBox(self):
"""
Retrieves the configured map layer selection combo box.
:return: (QgsMapLayerComboBox) configured layer selection widget.
"""
cb = QgsMapLayerComboBox()
cb.setFilters(QgsMapLayerProxyModel.VectorLayer)
return cb
def mapLayerModelDialog(self):
"""
Retrieves widget for map layer selection in a model dialog setup.
:return: (QLineEdit) map layer setter widget for processing dialog
mode.
"""
le = QLineEdit()
le.setPlaceholderText(self.tr("Type a vector layer's name..."))
return le
def filterExpressionWidget(self):
"""
Retrieves a new widget for filtering expression setting.
:return: (QgsFieldExpressionWidget) snap mode selection widget.
"""
fe = QgsFieldExpressionWidget()
def setValueProxy(exp):
layer = fe.layer()
if layer and exp.strip() in layer.fields().names():
# if a layer is set and the expression is the name purely a
# field, it will be ignore. single names are causing a weird
# crash when running the algorithm. this seems to solve it.
exp = ""
fe.setExpression(exp)
def getValueProxy():
layer = fe.layer()
exp = fe.currentText()
if layer and exp.strip() in layer.fields().names():
exp = ""
return exp
fe.setExpression_ = setValueProxy
fe.currentText_ = getValueProxy
return fe
def predicateComboBox(self):
"""
Retrieves widget for spatial predicate selection.
:return: (QComboBox) a combo box with all available predicates.
"""
cb = QComboBox()
cb.addItems(
list(SpatialRelationsHandler().availablePredicates().values()))
return cb
def de9imWidget(self):
"""
Creates a new widget to handle DE-9IM masks as input.
:return: (QLineEdit) a line edit with a DE-9IM text validator.
"""
le = QLineEdit()
regex = QRegExp("[FfTt012\*]{9}")
le.setValidator(QRegExpValidator(regex, le))
le.setPlaceholderText(self.tr("Type in a DE-9IM as 'T*F0*F21*'..."))
return le
def cardinalityWidget(self):
"""
Retrieves a widget for cardinality setting.
:return: (QLineEdit) cardinality widget with its content validation
applied.
"""
le = QLineEdit()
regex = QRegExp("[0-9\*]\.\.[0-9\*]")
le.setValidator(QRegExpValidator(regex, le))
le.setPlaceholderText("1..*")
return le
def useDE9IM(self):
"""
Identifies whether user chose to input predicate as a DE-9IM mask.
:return: (bool) whether GUI should handle the DE-9IM mask widget over
the combo box selection.
"""
return self.panel.cb.isChecked()
def _checkCardinalityAvailability(self, row):
"""
Checks if the cardinality for the rule at a given row is available.
Cardinality is only handled when predicate is provided through the
combo box options and are not available for the "NOT" options.
:param row: (int) row to have its cardinality checked.
:return: (bool) whether cardinality is available
"""
otw = self.panel.otw
if self.useDE9IM():
# if user is using the DE-9IM input, cardinality won't be
# managed
otw.itemAt(row, 7).setEnabled(True)
return True
predicate = otw.getValue(row, 3)
handler = SpatialRelationsHandler()
noCardinality = predicate in (handler.DISJOINT, handler.NOTEQUALS,
handler.NOTINTERSECTS,
handler.NOTTOUCHES, handler.NOTCROSSES,
handler.NOTWITHIN, handler.NOTOVERLAPS,
handler.NOTCONTAINS)
otw.itemAt(row, 7).setEnabled(not noCardinality)
if noCardinality:
otw.setValue(row, 7, "")
return not noCardinality
def postAddRowStandard(self, row):
"""
Sets up widgets to work as expected right after they are added to GUI.
:param row: (int) row to have its widgets setup.
"""
# in standard GUI, the layer selectors are QgsMapLayerComboBox, and its
# layer changed signal should be connected to the filter expression
# widget setup
otw = self.panel.otw
for col in [1, 5]:
mapLayerComboBox = otw.itemAt(row, col)
filterWidget = otw.itemAt(row, col + 1)
mapLayerComboBox.layerChanged.connect(filterWidget.setLayer)
mapLayerComboBox.layerChanged.connect(
partial(filterWidget.setExpression, ""))
# first setup is manual though
vl = mapLayerComboBox.currentLayer()
if vl:
filterWidget.setLayer(vl)
predicateWidget = otw.itemAt(row, 3)
predicateWidget.currentIndexChanged.connect(
partial(self._checkCardinalityAvailability, row))
# also triggers the action for the first time it is open
self._checkCardinalityAvailability(row)
def postAddRowModeler(self, row):
"""
Sets up widgets to work as expected right after they are added to GUI.
:param row: (int) row to have its widgets setup.
"""
otw = self.panel.otw
def checkLayerBeforeConnect(le, filterExp):
lName = le.text().strip()
for layer in QgsProject.instance().mapLayersByName(lName):
if isinstance(layer, QgsVectorLayer) and layer.name() == lName:
filterExp.setLayer(layer)
return
filterExp.setLayer(None)
for col in [1, 5]:
le = otw.itemAt(row, col)
filterWidget = otw.itemAt(row, col + 1)
le.editingFinished.connect(
partial(checkLayerBeforeConnect, le, filterWidget))
predicateWidget = otw.itemAt(row, 3)
predicateWidget.currentIndexChanged.connect(
partial(self._checkCardinalityAvailability, row))
self._checkCardinalityAvailability(row)
def standardPanel(self):
"""
Returns the table prepared for the standard Processing GUI.
:return: (OrderedTableWidget) DSGTools customized table widget.
"""
widget = QWidget()
layout = QVBoxLayout()
# added as an attribute in order to make it easier to be read
widget.cb = QCheckBox()
widget.cb.setText(self.tr("Use DE-9IM inputs"))
layout.addWidget(widget.cb)
widget.otw = OrderedTableWidget(
headerMap={
0: {
"header": self.tr("Rule name"),
"type": "widget",
"widget": self.ruleNameWidget,
"setter": "setText",
"getter": "text"
},
1: {
"header": self.tr("Layer A"),
"type": "widget",
"widget": self.mapLayerComboBox,
"setter": "setCurrentText",
"getter": "currentText"
},
2: {
"header": self.tr("Filter A"),
"type": "widget",
"widget": self.filterExpressionWidget,
"setter": "setExpression_",
"getter": "currentText_"
},
3: {
"header": self.tr("Predicate"),
"type": "widget",
"widget": self.predicateComboBox,
"setter": "setCurrentIndex",
"getter": "currentIndex"
},
4: {
"header": self.tr("DE-9IM mask predicate"),
"type": "widget",
"widget": self.de9imWidget,
"setter": "setText",
"getter": "text"
},
5: {
"header": self.tr("Layer B"),
"type": "widget",
"widget": self.mapLayerComboBox,
"setter": "setCurrentText",
"getter": "currentText"
},
6: {
"header": self.tr("Filter B"),
"type": "widget",
"widget": self.filterExpressionWidget,
"setter": "setExpression_",
"getter": "currentText_"
},
7: {
"header": self.tr("Cardinality"),
"type": "widget",
"widget": self.cardinalityWidget,
"setter": "setText",
"getter": "text"
}
})
def handlePredicateColumns(checked):
"""
Predicate input widgets are mutually exclusively: the user may only
input data through either of them. This method manages hiding and
showing correct columns in accord to the user selection.
:param checked: (bool) whether the DE-9IM usage checkbox is ticked.
"""
widget.otw.tableWidget.hideColumn(3 if checked else 4)
widget.otw.tableWidget.showColumn(4 if checked else 3)
widget.cb.toggled.connect(handlePredicateColumns)
widget.cb.toggled.emit(widget.cb.isChecked())
widget.otw.setHeaderDoubleClickBehaviour("replicate")
widget.otw.rowAdded.connect(self.postAddRowStandard)
layout.addWidget(widget.otw)
widget.setLayout(layout)
return widget
def batchPanel(self):
"""
Returns the table prepared for the batch Processing GUI.
:return: (OrderedTableWidget) DSGTools customized table widget.
"""
return self.standardPanel()
def modelerPanel(self):
"""
Returns the table prepared for the modeler Processing GUI.
:return: (OrderedTableWidget) DSGTools customized table widget.
"""
widget = QWidget()
layout = QVBoxLayout()
# added as an attribute in order to make it easier to be read
widget.cb = QCheckBox()
widget.cb.setText(self.tr("Use DE-9IM inputs"))
layout.addWidget(widget.cb)
widget.otw = OrderedTableWidget(
headerMap={
0: {
"header": self.tr("Rule name"),
"type": "widget",
"widget": self.ruleNameWidget,
"setter": "setText",
"getter": "text"
},
1: {
"header": self.tr("Layer A"),
"type": "widget",
"widget": self.mapLayerModelDialog,
"setter": "setText",
"getter": "text"
},
2: {
"header": self.tr("Filter A"),
"type": "widget",
"widget": self.filterExpressionWidget,
"setter": "setExpression_",
"getter": "currentText_"
},
3: {
"header": self.tr("Predicate"),
"type": "widget",
"widget": self.predicateComboBox,
"setter": "setCurrentIndex",
"getter": "currentIndex"
},
4: {
"header": self.tr("DE-9IM mask predicate"),
"type": "widget",
"widget": self.de9imWidget,
"setter": "setText",
"getter": "text"
},
5: {
"header": self.tr("Layer B"),
"type": "widget",
"widget": self.mapLayerModelDialog,
"setter": "setText",
"getter": "text"
},
6: {
"header": self.tr("Filter B"),
"type": "widget",
"widget": self.filterExpressionWidget,
"setter": "setExpression_",
"getter": "currentText_"
},
7: {
"header": self.tr("Cardinality"),
"type": "widget",
"widget": self.cardinalityWidget,
"setter": "setText",
"getter": "text"
}
})
def handlePredicateColumns(checked):
"""
Predicate input widgets are mutually exclusively: the user may only
input data through either of them. This method manages hiding and
showing correct columns in accord to the user selection.
:param checked: (bool) whether the DE-9IM usage checkbox is ticked.
"""
widget.otw.tableWidget.hideColumn(3 if checked else 4)
widget.otw.tableWidget.showColumn(4 if checked else 3)
widget.cb.toggled.connect(handlePredicateColumns)
widget.cb.toggled.emit(widget.cb.isChecked())
widget.otw.setHeaderDoubleClickBehaviour("replicate")
widget.otw.rowAdded.connect(self.postAddRowModeler)
layout.addWidget(widget.otw)
widget.setLayout(layout)
return widget
def createPanel(self):
return {
DIALOG_MODELER: self.modelerPanel,
DIALOG_STANDARD: self.standardPanel,
DIALOG_BATCH: self.batchPanel
}[self.dialogType]()
def createWidget(self):
self.panel = self.createPanel()
self.panel.otw.showSaveLoadButtons(True)
self.panel.otw.extension = ".rules"
self.panel.otw.fileType = self.tr("Set of DSGTools Spatial Rules")
self.panel.otw.setMetadata({"version": self.__ATTRIBUTE_MAP_VERSION})
return self.panel
def parentLayerChanged(self, layer=None):
pass
def setLayer(self, layer):
pass
def showLoadingMsg(self, invalidRules=None, msgType=None):
"""
Shows a message box to user if successfully loaded data or not.
If not, shows to user a list of not loaded layers and allows user
to choice between ignore and continue or cancel the importation.
:param lyrList: (list) a list of not loaded layers.
:param msgType: (str) type of message box - warning or information.
:return: (signal) value returned from the clicked button.
"""
msg = QMessageBox()
msg.setWindowTitle(self.tr("DSGTools: importing spatial rules"))
if invalidRules and msgType == "warning":
msg.setIcon(QMessageBox.Warning)
msg.setText(self.tr("Some rules have not been loaded"))
msg.setInformativeText(
self.tr("Do you want to ignore and continue or cancel?"))
msgString = "\n".join((r.ruleName() for r in invalidRules))
formatedMsgString = self.tr(
"The following layers have not been loaded:\n{0}").format(
msgString)
msg.setDetailedText(formatedMsgString)
msg.setStandardButtons(QMessageBox.Ignore | QMessageBox.Cancel)
msg.setDefaultButton(QMessageBox.Cancel)
else:
msg.setIcon(QMessageBox.Information)
msg.setText(self.tr("Successfully loaded rules!"))
choice = msg.exec_()
return choice
def setValue(self, value):
"""
Sets back parameters to the GUI. Method reimplementation.
:param value: (list-of-SpatialRule) list of spatial rules to be set.
"""
if not value:
return
otw = self.panel.otw
useDE9IM = value[0].get("useDE9IM", False)
self.panel.cb.setChecked(useDE9IM)
# signal must be triggered to adjust the correct column display
self.panel.cb.toggled.emit(useDE9IM)
isNotModeler = self.dialogType != DIALOG_MODELER
invalids = list()
for rule in value:
# GUI was crashing when passing SpatialRule straight up
rule = SpatialRule(**rule, checkLoadedLayer=False)
# we want to check whether the layer is loaded as this does not
# work properly with the map layer combobox. on the modeler it
# won't matter as it is a line edit
if not rule.isValid(checkLoaded=isNotModeler):
invalids.append(rule)
continue
otw.addRow({
0: rule.ruleName(),
1: rule.layerA(),
2: rule.filterA(),
3: rule.predicateEnum(),
4: rule.predicateDE9IM(),
5: rule.layerB(),
6: rule.filterB(),
7: rule.cardinality()
})
choice = self.showLoadingMsg(invalids, "warning" if invalids else "")
if choice == QMessageBox.Cancel:
otw.clear()
def readStandardPanel(self):
"""
Reads widget's contents when process' parameters are set from an
algorithm call (e.g. Processing toolbox).
"""
ruleList = list()
otw = self.panel.otw
useDe9im = self.useDE9IM()
for row in range(otw.rowCount()):
ruleList.append(
SpatialRule(
name=otw.getValue(row, 0).strip(), # or \
# self.tr("Spatial Rule #{n}".format(n=row + 1)),
layer_a=otw.getValue(row, 1),
filter_a=otw.getValue(row, 2),
predicate=otw.getValue(row, 3),
de9im_predicate=otw.getValue(row, 4),
layer_b=otw.getValue(row, 5),
filter_b=otw.getValue(row, 6),
cardinality=otw.getValue(row, 7) or "1..*",
useDE9IM=useDe9im,
checkLoadedLayer=False).asDict())
return ruleList
def readModelerPanel(self):
"""
Reads widget's contents when process' parameters are set from a modeler
instance.
"""
return self.readStandardPanel()
def readBatchPanel(self):
"""
Reads widget's contents when process' parameters are set from a batch
processing instance.
"""
return self.readStandardPanel()
def validate(self, pushAlert=False):
"""
Validates fields. Returns True if all information are filled correctly.
:param pushAlert: (bool) whether invalidation reason should be
displayed on the widget.
:return: (bool) whether set of filled parameters if valid.
"""
inputMap = {
DIALOG_STANDARD: self.readStandardPanel,
DIALOG_MODELER: self.readModelerPanel,
DIALOG_BATCH: self.readBatchPanel
}[self.dialogType]()
if len(inputMap) == 0:
if pushAlert:
self.messageBar.pushMessage(
self.tr("Please provide at least 1 spatial rule."),
level=Qgis.Warning,
duration=5)
return False
for row, rule in enumerate(inputMap):
# GUI was crashing when passing SpatialRule straight up
rule = SpatialRule(**rule)
if not rule.isValid():
if pushAlert:
self.messageBar.pushMessage(
self.tr("{0} (row {1}).")\
.format(rule.validate(), row + 1),
level=Qgis.Warning,
duration=5
)
return False
return True
def value(self):
"""
Retrieves parameters from current widget. Method reimplementation.
:return: (dict) value currently set to the GUI.
"""
if self.validate(pushAlert=True):
return {
DIALOG_STANDARD: self.readStandardPanel,
DIALOG_MODELER: self.readModelerPanel,
DIALOG_BATCH: self.readBatchPanel
}[self.dialogType]()
def postInitialize(self, wrappers):
pass
class WorkflowSetupDialog(QDialog, FORM_CLASS):
__qgisModelPath__ = ModelerUtils.modelsFolders()[0]
ON_FLAGS_HALT, ON_FLAGS_WARN, ON_FLAGS_IGNORE = range(3)
onFlagsDisplayNameMap = {
ON_FLAGS_HALT:
QCoreApplication.translate('WorkflowSetupDialog', "Halt"),
ON_FLAGS_WARN:
QCoreApplication.translate('WorkflowSetupDialog', "Warn"),
ON_FLAGS_IGNORE:
QCoreApplication.translate('WorkflowSetupDialog', "Ignore")
}
onFlagsValueMap = {
ON_FLAGS_HALT: "halt",
ON_FLAGS_WARN: "warn",
ON_FLAGS_IGNORE: "ignore"
}
MODEL_NAME_HEADER, MODEL_SOURCE_HEADER, ON_FLAGS_HEADER, LOAD_OUT_HEADER = range(
4)
def __init__(self, parent=None):
"""
Class constructor.
:param headerMap: (dict) a map from each header to be shown and type of
cell content (e.g. widget or item).
:param parent: (QtWidgets.*) any widget parent to current instance.
"""
super(WorkflowSetupDialog, self).__init__(parent)
self.parent = parent
self.setupUi(self)
self.messageBar = QgsMessageBar(self)
self.orderedTableWidget.setHeaders({
self.MODEL_NAME_HEADER: {
"header": self.tr("Model name"),
"type": "widget",
"widget": self.modelNameWidget,
"setter": "setText",
"getter": "text"
},
self.MODEL_SOURCE_HEADER: {
"header": self.tr("Model source"),
"type": "widget",
"widget": self.modelWidget,
"setter": "setText",
"getter": "text"
},
self.ON_FLAGS_HEADER: {
"header": self.tr("On flags"),
"type": "widget",
"widget": self.onFlagsWidget,
"setter": "setCurrentIndex",
"getter": "currentIndex"
},
self.LOAD_OUT_HEADER: {
"header": self.tr("Load output"),
"type": "widget",
"widget": self.loadOutputWidget,
"setter": "setChecked",
"getter": "isChecked"
}
})
self.orderedTableWidget.setHeaderDoubleClickBehaviour("replicate")
def resizeTable(self):
"""
Adjusts table columns sizes.
"""
dSize = self.orderedTableWidget.geometry().width() - \
self.orderedTableWidget.horizontalHeader().geometry().width()
onFlagsColSize = self.orderedTableWidget.sectionSize(2)
loadOutColSize = self.orderedTableWidget.sectionSize(3)
missingBarSize = self.geometry().size().width() - dSize\
- onFlagsColSize - loadOutColSize
# the "-11" is empiric: it makes it fit header to table
self.orderedTableWidget.tableWidget.horizontalHeader().resizeSection(
0,
int(0.4 * missingBarSize) - 11)
self.orderedTableWidget.tableWidget.horizontalHeader().resizeSection(
1, missingBarSize - int(0.4 * missingBarSize) - 11)
def resizeEvent(self, e):
"""
Reimplementation in order to use this window's resize event.
On this object, this method makes sure that message bar is always the
same size as the window.
:param e: (QResizeEvent) resize event.
"""
self.messageBar.resize(
QSize(
self.geometry().size().width(),
40 # this felt nicer than the original height (30)
))
self.resizeTable()
def confirmAction(self, msg, showCancel=True):
"""
Raises a message box for confirmation before executing an action.
:param msg: (str) message to be exposed.
:param showCancel: (bool) whether Cancel button should be exposed.
:return: (bool) whether action was confirmed.
"""
if showCancel:
return QMessageBox.question(self, self.tr('Confirm Action'), msg,
QMessageBox.Ok
| QMessageBox.Cancel) == QMessageBox.Ok
else:
return QMessageBox.question(self, self.tr('Confirm Action'), msg,
QMessageBox.Ok) == QMessageBox.Ok
def clear(self):
"""
Clears all input data from GUI.
"""
self.authorLineEdit.setText("")
self.nameLineEdit.setText("")
self.versionLineEdit.setText("")
self.orderedTableWidget.clear()
def modelNameWidget(self, name=None):
"""
Gets a new instance of model name's setter widget.
:param name: (str) model name to be filled.
:return: (QLineEdit) widget for model's name setting.
"""
# no need to pass parenthood as it will be set to the table when added
# to a cell
le = QLineEdit()
# setPlace"h"older, with a lower case "h"...
le.setPlaceholderText(self.tr("Set a name for the model..."))
if name is not None:
le.setText(name)
le.setFrame(False)
return le
def modelWidget(self, filepath=None):
"""
Gets a new instance of model settter's widget.
:parma filepath: (str) path to a model.
:return: (SelectFileWidget) DSGTools custom file selection widget.
"""
widget = SelectFileWidget()
widget.label.hide()
widget.selectFilePushButton.setText("...")
widget.selectFilePushButton.setMaximumWidth(32)
widget.lineEdit.setPlaceholderText(self.tr("Select a model..."))
widget.lineEdit.setFrame(False)
widget.setCaption(self.tr("Select a QGIS Processing model file"))
widget.setFilter(
self.tr("Select a QGIS Processing model (*.model *.model3)"))
# defining setter and getter methods for composed widgets into OTW
widget.setText = widget.lineEdit.setText
widget.text = widget.lineEdit.text
if filepath is not None:
widget.setText(filepath)
return widget
def onFlagsWidget(self, option=None):
"""
Gets a new instance for the widget that sets model's behaviour when
flags are raised.
:param option: (str) on flags raised behaviour (non translatable text).
:return: (QComboBox) model's behaviour selection widget.
"""
combo = QComboBox()
combo.addItems([
self.onFlagsDisplayNameMap[self.ON_FLAGS_HALT],
self.onFlagsDisplayNameMap[self.ON_FLAGS_WARN],
self.onFlagsDisplayNameMap[self.ON_FLAGS_IGNORE]
])
if option is not None:
optIdx = None
for idx, txt in self.onFlagsValueMap.items():
if option == txt:
optIdx = idx
break
optIdx = optIdx if optIdx is not None else 0
combo.setCurrentIndex(optIdx)
return combo
def loadOutputWidget(self, option=None):
"""
Gets a new instance for the widget that sets output layer loading
definitions.
:param option: (bool) if output should be loaded.
:return: (QWidget) widget for output layer loading behaviour
definition.
"""
cb = QCheckBox()
cb.setStyleSheet("margin:auto;")
if option is not None:
cb.setChecked(option)
return cb
def now(self):
"""
Gets time and date from the system. Format: "dd/mm/yyyy HH:MM:SS".
:return: (str) current's date and time
"""
paddle = lambda n: str(n) if n > 9 else "0{0}".format(n)
now = datetime.now()
return "{day}/{month}/{year} {hour}:{minute}:{second}".format(
year=now.year,
month=paddle(now.month),
day=paddle(now.day),
hour=paddle(now.hour),
minute=paddle(now.minute),
second=paddle(now.second))
def workflowName(self):
"""
Reads filled workflow name from GUI.
:return: (str) workflow's name.
"""
return self.nameLineEdit.text().strip()
def setWorkflowName(self, name):
"""
Sets workflow name to GUI.
:param name: (str) workflow's name.
"""
self.nameLineEdit.setText(name)
def author(self):
"""
Reads filled workflow name from GUI.
:return: (str) workflow's author.
"""
return self.authorLineEdit.text().strip()
def setWorkflowAuthor(self, author):
"""
Sets workflow author name to GUI.
:param author: (str) workflow's author name.
"""
self.authorLineEdit.setText(author)
def version(self):
"""
Reads filled workflow name from GUI.
:return: (str) workflow's version.
"""
return self.versionLineEdit.text().strip()
def setWorkflowVersion(self, version):
"""
Sets workflow version to GUI.
:param version: (str) workflow's version.
"""
self.versionLineEdit.setText(version)
def modelCount(self):
"""
Reads the amount of models (rows added) the user intend to use.
:return: (int) model count.
"""
return self.orderedTableWidget.rowCount()
def readRow(self, row):
"""
Reads a row's contents and set it as a DsgToolsProcessingModel set of
parameters.
:return: (dict) parameters map.
"""
contents = self.orderedTableWidget.row(row)
filepath = contents[self.MODEL_SOURCE_HEADER].strip()
onFlagsIdx = contents[self.ON_FLAGS_HEADER]
name = contents[self.MODEL_NAME_HEADER].strip()
loadOutput = contents[self.LOAD_OUT_HEADER]
if not os.path.exists(filepath):
xml = ""
else:
with open(filepath, "r", encoding="utf-8") as f:
xml = f.read()
return {
"displayName": name,
"flags": {
"onFlagsRaised": self.onFlagsValueMap[onFlagsIdx],
"loadOutput": loadOutput
},
"source": {
"type": "xml",
"data": xml
},
"metadata": {
"originalName": os.path.basename(filepath)
}
}
def setModelToRow(self, row, model):
"""
Reads model's parameters from model parameters default map.
:param row: (int) row to have its widgets filled with model's
parameters.
:param model: (DsgToolsProcessingModel) model object.
"""
# all model files handled by this tool are read/written on QGIS model dir
data = model.data()
if model.source() == "file" and os.path.exists(data):
with open(data, "r", encoding="utf-8") as f:
xml = f.read()
originalName = os.path.basename(data)
elif model.source() == "xml":
xml = data
meta = model.metadata()
originalName = model.originalName() if model.originalName() \
else "temp_{0}.model3".format(hash(time()))
else:
return False
path = os.path.join(self.__qgisModelPath__, originalName)
msg = self.tr(
"Model '{0}' is already imported would you like to overwrite it?"
).format(path)
if os.path.exists(path) and self.confirmAction(msg):
os.remove(path)
if not os.path.exists(path):
with open(path, "w") as f:
f.write(xml)
self.orderedTableWidget.addRow(
contents={
self.MODEL_NAME_HEADER: model.displayName(),
self.MODEL_SOURCE_HEADER: path,
self.ON_FLAGS_HEADER: {
"halt": self.ON_FLAGS_HALT,
"warn": self.ON_FLAGS_WARN,
"ignore": self.ON_FLAGS_IGNORE
}[model.onFlagsRaised()],
self.LOAD_OUT_HEADER: model.loadOutput()
})
return True
def validateRowContents(self, contents):
"""
Checks if all attributes read from a row are valid.
:param contents: (dict) map to (already read) row contents.
:return: (str) invalidation reason
"""
if contents["displayName"] == "":
return self.tr("Missing model's name.")
if contents["source"]["data"] == "":
return self.tr("Model is empty or file was not found.")
return ""
def models(self):
"""
Reads all table contents and sets it as a DsgToolsProcessingAlgorithm's
set of parameters.
:return: (dict) map to each model's set of parameters.
"""
models = dict()
for row in range(self.modelCount()):
contents = self.readRow(row)
models[contents["displayName"]] = contents
return models
def validateModels(self):
"""
Check if each row on table has a valid input.
:return: (str) invalidation reason.
"""
for row in range(self.modelCount()):
msg = self.validateRowContents(self.readRow(row))
if msg:
return "Row {row}: '{error}'".format(row=row + 1, error=msg)
if len(self.models()) != self.modelCount():
return self.tr("Check if no model name is repeated.")
return ""
def workflowParameterMap(self):
"""
Generates a Workflow map from input data.
"""
return {
"displayName": self.workflowName(),
"models": self.models(),
"metadata": {
"author": self.author(),
"version": self.version(),
"lastModified": self.now()
}
}
def currentWorkflow(self):
"""
Returns current workflow object as read from GUI.
:return: (QualityAssuranceWorkflow) current workflow object.
"""
try:
return QualityAssuranceWorkflow(self.workflowParameterMap())
except:
return None
def validate(self):
"""
Checks if all filled data generates a valid Workflow object.
:return: (bool) validation status.
"""
if self.workflowName() == "":
return self.tr("Workflow's name needs to be filled.")
if self.author() == "":
return self.tr("Workflow's author needs to be filled.")
if self.version() == "":
return self.tr("Workflow's version needs to be filled.")
msg = self.validateModels()
if msg != "":
return msg
return ""
def exportWorkflow(self, filepath):
"""
Exports current data to a JSON file.
:param filepath: (str) output file directory.
"""
QualityAssuranceWorkflow(self.workflowParameterMap()).export(filepath)
@pyqtSlot(bool, name="on_exportPushButton_clicked")
def export(self):
"""
Exports current input data as a workflow JSON, IF input is valid.
:return: (bool) operation success.
"""
msg = self.validate()
if msg != "":
self.messageBar.pushMessage(self.tr('Invalid workflow'),
msg,
level=Qgis.Warning,
duration=5)
return False
fd = QFileDialog()
filename = fd.getSaveFileName(
caption=self.tr("Export DSGTools Workflow"),
filter=self.tr("DSGTools Workflow (*.workflow)"))
filename = filename[0] if isinstance(filename, tuple) else ""
if filename == "":
return False
filename = filename if filename.lower().endswith(".workflow") \
else "{0}.workflow".format(filename)
try:
self.exportWorkflow(filename)
except Exception as e:
self.messageBar.pushMessage(
self.tr('Invalid workflow'),
self.tr(
"Unable to export workflow to '{fp}' ({error}).").format(
fp=filename, error=str(e)),
level=Qgis.Warning,
duration=5)
return False
result = os.path.exists(filename)
msg = (self.tr("Workflow exported to {fp}") if result else \
self.tr("Unable to export workflow to '{fp}'")).format(fp=filename)
lvl = Qgis.Success if result else Qgis.Warning
self.messageBar.pushMessage(self.tr('Workflow exportation'),
msg,
level=lvl,
duration=5)
return result
def importWorkflow(self, filepath):
"""
Sets workflow contents from an imported DSGTools Workflow dump file.
:param filepath: (str) workflow file to be imported.
"""
with open(filepath, "r", encoding="utf-8") as f:
xml = json.load(f)
workflow = QualityAssuranceWorkflow(xml)
self.clear()
self.setWorkflowAuthor(workflow.author())
self.setWorkflowVersion(workflow.version())
self.setWorkflowName(workflow.displayName())
for row, modelParam in enumerate(xml["models"].values()):
self.setModelToRow(row, DsgToolsProcessingModel(modelParam, ""))
@pyqtSlot(bool, name="on_importPushButton_clicked")
def import_(self):
"""
Request a file for Workflow importation and sets it to GUI.
:return: (bool) operation status.
"""
fd = QFileDialog()
filename = fd.getOpenFileName(
caption=self.tr('Select a Workflow file'),
filter=self.tr('DSGTools Workflow (*.workflow *.json)'))
filename = filename[0] if isinstance(filename, tuple) else ""
if not filename:
return False
try:
self.importWorkflow(filename)
except Exception as e:
self.messageBar.pushMessage(
self.tr('Invalid workflow'),
self.tr(
"Unable to export workflow to '{fp}' ({error}).").format(
fp=filename, error=str(e)),
level=Qgis.Critical,
duration=5)
return False
self.messageBar.pushMessage(
self.tr('Success'),
self.tr("Workflow '{fp}' imported!").format(fp=filename),
level=Qgis.Info,
duration=5)
return True
@pyqtSlot(bool, name="on_okPushButton_clicked")
def ok(self):
"""
Closes dialog and checks if current workflow is valid.
"""
msg = self.validate()
if msg == "" and self.currentWorkflow():
self.done(1)
else:
self.messageBar.pushMessage(self.tr('Invalid workflow'),
self.validate(),
level=Qgis.Warning,
duration=5)
@pyqtSlot(bool, name="on_cancelPushButton_clicked")
def cancel(self):
"""
Restores GUI to last state and closes it.
"""
self.done(0)