class DmsHandler(QObject):
inputDidChange = pyqtSignal()
def __init__(self, degField, minField, secField, maxDegrees):
super(DmsHandler, self).__init__()
# init validators:
self.intDegValidator = QIntValidator(0, maxDegrees, parent=self)
self.minValidator = QIntValidator(0, 59, parent=self)
self.secValidator = QDoubleValidator(0.0, 59.999, 3, parent=self)
self.secValidator.setNotation(QDoubleValidator.StandardNotation)
self._degField = degField
self._minField = minField
self._secField = secField
self._maxDegrees = maxDegrees
self._degFieldIncrementor = ValueIncrementor(self._degField,
maxDegrees,
doOverflow=False)
self._degFieldIncrementor.fieldDidOverflow.connect(
self.fieldDidOverflow)
self._degField.setValidator(self.intDegValidator)
self._degField.textEdited.connect(self.inputDidChange.emit)
self._minFieldIncrementor = ValueIncrementor(
self._minField, 59, wrapCallback=self.isWrapAllowedFor)
self._minFieldIncrementor.fieldDidOverflow.connect(
self.fieldDidOverflow)
self._minField.setValidator(self.minValidator)
self._minField.textChanged.connect(
partial(self.minorFieldDidChange, self._minField))
self._secFieldIncrementor = ValueIncrementor(
self._secField, 59, wrapCallback=self.isWrapAllowedFor)
self._secFieldIncrementor.fieldDidOverflow.connect(
self.fieldDidOverflow)
self._secField.setValidator(self.secValidator)
self._secField.textChanged.connect(
partial(self.minorFieldDidChange, self._secField))
def fieldDidOverflow(self, field, overflow):
if field == self._minField:
self._degFieldIncrementor.doStepwiseIncrement(overflow)
elif field == self._secField:
self._minFieldIncrementor.doStepwiseIncrement(overflow)
def minorFieldDidChange(self, field):
degrees = QLocale().toInt(self._degField.text())[0]
if degrees == self._maxDegrees:
field.setText("0")
self.inputDidChange.emit()
def isWrapAllowedFor(self, field, direction):
if (field == self._minField):
degrees = QLocale().toInt(self._degField.text())[0]
res = degrees + direction
return 0 <= res <= self._maxDegrees
elif (field == self._secField):
minutes = QLocale().toInt(self._minField.text())[0]
res = minutes + direction
if not (0 <= res < 60):
return self.isWrapAllowedFor(self._minField, direction)
else:
return True
elif (field == self._degField):
degrees = QLocale().toInt(self._degField.text())[0]
res = degrees + direction
return 0 <= res <= self._maxDegrees
return True
class CoordinatorDockWidget(QtWidgets.QDockWidget, FORM_CLASS):
SectionInput = 1
SectionOutput = 2
SectionBoth = 3
SideRight = 1
SideLeft = 2
SideBoth = 3
closingPlugin = pyqtSignal()
inputChanged = pyqtSignal()
mapConnectionChanged = pyqtSignal(int, bool)
def __init__(self, parent=None):
"""Constructor."""
super(CoordinatorDockWidget, self).__init__(parent)
# Set up the user interface from Designer.
# After setupUI you can access any designer object by doing
# self.<objectname>, and you can use autoconnect slots - see
# http://qt-project.org/doc/qt-4.8/designer-using-a-ui-file.html
# #widgets-and-dialogs-with-auto-connect
self.decDegreeValidator = QDoubleValidator(0.0, 180.0, 8, parent=self)
self.decDegreeValidator.setNotation(QDoubleValidator.StandardNotation)
self.projectedValidator = QDoubleValidator(-999999999.0,
999999999.0,
4,
parent=self)
self._eastingLeftNorthingRight = True
self._eastingInverted = False
self._northingInverted = False
self.sectionIsGeographic = {
CoordinatorDockWidget.SectionInput: True,
CoordinatorDockWidget.SectionOutput: True
}
self.setupUi(self)
# setup some lists of the input for easier access later
self._widgetlistInputDms = [
self.inLeft, self.inRight, self.inLeftSec, self.inRightSec,
self.inLeftMin, self.inRightMin
]
self._widgetlistInput = self._widgetlistInputDms + [
self.inLeftDec, self.inRightDec
]
self.resetInterface()
self.setupInternal()
# need to init that after setupUi because of message icon label size
messageIconWidgetSize = self.messageIcon.size()
messageIconSize = QSize(messageIconWidgetSize.width() - 2,
messageIconWidgetSize.height() - 2)
self.warningPixmap = QIcon(
':/plugins/coordinator/icons/warning.svg').pixmap(messageIconSize)
self.messageHideTimer = QTimer(parent=self)
self.messageHideTimer.setSingleShot(True)
self.messageHideTimer.timeout.connect(self.hideMessages)
def setupInternal(self):
self.leftDecimal.hide()
self.rightDecimal.hide()
self.leftDmsDisplay = DmsHandler(self.inLeft, self.inLeftMin,
self.inLeftSec, 180)
self.leftDmsDisplay.inputDidChange.connect(
self.__inputFieldsChangedInternal)
self.rightDmsDisplay = DmsHandler(self.inRight, self.inRightMin,
self.inRightSec, 90)
self.rightDmsDisplay.inputDidChange.connect(
self.__inputFieldsChangedInternal)
for dirButton in [self.leftDirButton, self.rightDirButton]:
# see https://stackoverflow.com/questions/4578861/connecting-slots-and-signals-in-pyqt4-in-a-loop
dirButton.clicked.connect(
partial(self.toggleCardinalDirectionButton, dirButton))
for inputField in self._widgetlistInputDms:
inputField.installEventFilter(self)
for inputField in [self.inLeftDec, self.inRightDec]:
inputField.textEdited.connect(self.__inputFieldsChangedInternal)
inputField.setValidator(self.decDegreeValidator)
inputField.installEventFilter(self)
self.leftDecIncrementor = ValueIncrementor(self.inLeftDec, 180, -180)
self.rightDecIncrementor = ValueIncrementor(self.inLeftDec, 90, -90)
self.outputCrsConn.clicked.connect(
partial(self.toggledMapConnection,
CoordinatorDockWidget.SectionOutput))
self.copyLeft.clicked.connect(
partial(self.copyResultToClipBoard,
CoordinatorDockWidget.SideLeft))
self.copyRight.clicked.connect(
partial(self.copyResultToClipBoard,
CoordinatorDockWidget.SideRight))
self.copyResultComplete.clicked.connect(
partial(self.copyResultToClipBoard,
CoordinatorDockWidget.SideBoth))
self.clearInput.clicked.connect(
partial(self.resetInterface, self.SectionBoth))
self.showHelp.clicked.connect(self.showHelpButtonClicked)
def _setToolsEnabled(self, enabled, section=None):
if (section == None): section = self.SectionBoth
if (section & self.SectionInput):
self.moveCanvas.setEnabled(enabled)
if (section & self.SectionOutput):
for widget in [
self.copyResultComplete, self.copyLeft, self.copyRight
]:
widget.setEnabled(enabled)
def resetInterface(self, section=None):
if section == None: section = self.SectionBoth
self.clearSection(section)
self._setToolsEnabled(False, section)
def eventFilter(self, obj, event):
if (type(event) == QKeyEvent and event.type() == QEvent.KeyRelease):
key = event.key()
if (self.sectionIsGeographic[self.SectionInput]
and event.text() == "-"):
# maybe we should switch the hemisphere?
if (obj in [
self.inLeft, self.inLeftDec, self.inLeftMin,
self.inLeftSec
]):
self.toggleCardinalDirectionButton(self.leftDirButton)
else:
self.toggleCardinalDirectionButton(self.rightDirButton)
elif (key in [Qt.Key_Return, Qt.Key_Enter]):
if (self.addFeatureButton.isEnabled()):
#coordinatorLog("Clicking add Feature Button")
self.addFeatureButton.click()
#coordinatorLog("Yakub Key Event (Filter): %s (%s)" % (event.key(), event.text()) )
return super(CoordinatorDockWidget, self).eventFilter(obj, event)
def __styleInputStyleSelectorForGeographicCrs(self, isGeographic):
for widget in [self.geoLabel, self.inputAsDMS, self.inputAsDec]:
widget.setEnabled(isGeographic)
def setSectionIsGeographic(self, section, isGeographic):
if (section & self.SectionInput):
# switch validators for the decimal field, as we may support different ranges
# switch to DMS view accordingly
if isGeographic:
self.inLeftDec.setValidator(self.decDegreeValidator)
self.inRightDec.setValidator(self.decDegreeValidator)
# switch to DMS view if it is selected
self.setInputToDMS(self.inputAsDMS.isChecked())
else:
self.inLeftDec.setValidator(self.projectedValidator)
self.inRightDec.setValidator(self.projectedValidator)
self.setInputToDMS(False)
for widget in [
self.labelDecDegreeLeft, self.labelDecDegreeRight,
self.leftDirButton, self.rightDirButton
]:
widget.show() if isGeographic else widget.hide()
self.__styleInputStyleSelectorForGeographicCrs(isGeographic)
if (section & self.SectionOutput):
for widget in [self.resultAsDMS, self.resultAsDec]:
widget.setEnabled(isGeographic)
self.sectionIsGeographic[section] = isGeographic
def setSectionCrs(self, section, crs):
#QgsMessageLog.logMessage("set SectionCrs, is Geographic: %s" % crs.isGeographic(), "Coordinator")
self.setSectionIsGeographic(section, crs.isGeographic())
if (section == self.SectionInput):
self.selectCrsButton.setText(crs.authid())
elif (section == self.SectionOutput):
self.outputCrs.setText(crs.authid())
def setInputToDMS(self, isDms):
if isDms:
self.leftDMS.show()
self.rightDMS.show()
self.leftDecimal.hide()
self.rightDecimal.hide()
else:
self.leftDMS.hide()
self.rightDMS.hide()
self.leftDecimal.show()
self.rightDecimal.show()
def setInputPoint(self, point):
#QgsMessageLog.logMessage("%s/%s" % (point.x(), point.y()))
if self.sectionIsGeographic[self.SectionInput]:
precision = 9
# remove leading minus when setting decimal fields. The correct state for
# the hemisphere buttons is applied in setDmsInputFromDecimal() later.
xDec = abs(point.x())
yDec = abs(point.y())
else:
precision = 3
xDec = point.x()
yDec = point.y()
self.inLeftDec.setText(QLocale().toString(
xDec if self._eastingLeftNorthingRight else yDec, "f", precision))
self.inRightDec.setText(QLocale().toString(
yDec if self._eastingLeftNorthingRight else xDec, "f", precision))
self.setDmsInputFromDecimal(point.x(), point.y())
self.__inputFieldsChangedInternal()
def setDmsInputFromDecimal(self, x, y, setEastingNorthingInversion=True):
xDMS = coordinatorDecimalToDms(x)
yDMS = coordinatorDecimalToDms(y)
#QgsMessageLog.logMessage(str(xDMS))
if (setEastingNorthingInversion):
self.setEastingInverted(xDMS[0])
self.setNorthingInverted(yDMS[0])
leftDMS = xDMS if self._eastingLeftNorthingRight else yDMS
rightDMS = yDMS if self._eastingLeftNorthingRight else xDMS
self.inLeft.setText(QLocale().toString(leftDMS[1]))
self.inLeftMin.setText(QLocale().toString(leftDMS[2]))
self.inLeftSec.setText(QLocale().toString(leftDMS[3], "f", 2))
self.inRight.setText(QLocale().toString(rightDMS[1]))
self.inRightMin.setText(QLocale().toString(rightDMS[2]))
self.inRightSec.setText(QLocale().toString(rightDMS[3], "f", 2))
def setResultPoint(self, point):
if self.sectionIsGeographic[CoordinatorDockWidget.SectionOutput]:
if (self.resultAsDec.isChecked()):
f = QgsCoordinateFormatter.FormatDecimalDegrees
precision = 9
else:
f = QgsCoordinateFormatter.FormatDegreesMinutesSeconds
precision = 3
transformedX = QgsCoordinateFormatter.formatX(
point.x(), f, precision)
transformedY = QgsCoordinateFormatter.formatY(
point.y(), f, precision)
# if we use FormatDecimalDegrees QgsCoordinateFormatter produces
# a string just with a QString::number(). Therefore the string is NOT
# localized. But QgsCoordinateFormatter provides coordinate wrapping already
# so we just hack the correct decimal sign into the string and should be
# fine... juuust fine!
decPoint = QLocale().decimalPoint()
#coordinatorLog("Decimal Point: %s" % decPoint)
if (decPoint != "."):
#coordinatorLog("replace!!")
transformedX = transformedX.replace(".", decPoint)
transformedY = transformedY.replace(".", decPoint)
else:
#self.log(" -> using decimal output")
transformedX = QLocale().toString(point.x(), 'f', 2)
transformedY = QLocale().toString(point.y(), 'f', 2)
self.setResult(transformedX, transformedY)
def setResult(self, x, y):
if (self._eastingLeftNorthingRight):
self.resultLeft.setText(x)
self.resultRight.setText(y)
else:
self.resultLeft.setText(y)
self.resultRight.setText(x)
def setWarningMessage(self, message):
if (message and len(message) > 0):
self.messageIcon.setPixmap(self.warningPixmap)
self.messageIcon.show()
self.messageText.setText(message)
else:
self.hideMessages()
def showInfoMessage(self, message, hideAfterMilliseconds=None):
self.messageIcon.clear()
self.messageText.setText(message)
if (hideAfterMilliseconds):
self.messageHideTimer.setInterval(hideAfterMilliseconds)
self.messageHideTimer.start()
def hideMessages(self):
self.messageIcon.clear()
self.messageIcon.hide()
self.messageText.clear()
def clearFieldsInSection(self, section):
if (section & self.SectionInput):
for inputField in self._widgetlistInput:
inputField.setText("")
if (section & self.SectionOutput):
for inputField in [
self.resultRight,
self.resultLeft,
]:
inputField.setText("")
def clearSection(self, section):
self.clearFieldsInSection(section)
# the following code will also reset
# the buttons designating the hemisphere:
#if (section & self.SectionInput ) :
# self.setEastingInverted(False)
# self.setNorthingInverted(False)
self.addFeatureButton.setEnabled(False)
self.inputChanged.emit()
def calculateDecimalDegreesFromDMS(self):
#QgsMessageLog.logMessage("calc DMS", "Coordinator")
valueLeft = coordinatorDmsStringsToDecimal(self.inLeft.text(),
self.inLeftMin.text(),
self.inLeftSec.text())
valueRight = coordinatorDmsStringsToDecimal(self.inRight.text(),
self.inRightMin.text(),
self.inRightSec.text())
return (valueLeft, valueRight)
def hasInput(self):
if self.leftDMS.isVisible():
hasInput = False
for field in self._widgetlistInputDms:
if len(field.text()) > 0:
hasInput = True
break
else:
hasInput = (len(self.inLeftDec.text()) > 0
or len(self.inRightDec.text()) > 0)
return hasInput
def __rawInputCoordinates(self):
if (self.leftDMS.isVisible()):
return (self.calculateDecimalDegreesFromDMS())
else:
valueLeft = 0.0
valueRight = 0.0
if (len(self.inLeftDec.text())):
valueLeft = QLocale().toFloat(self.inLeftDec.text())[0]
if (len(self.inRightDec.text())):
valueRight = QLocale().toFloat(self.inRightDec.text())[0]
return (valueLeft, valueRight)
def inputCoordinates(self):
(valueLeft, valueRight) = self.__rawInputCoordinates()
if (self._eastingLeftNorthingRight):
inX = valueLeft
inY = valueRight
else:
inX = valueRight
inY = valueLeft
if (self.sectionIsGeographic[self.SectionInput]
and self._eastingInverted):
inX *= -1
if (self.sectionIsGeographic[self.SectionInput]
and self._northingInverted):
inY *= -1
return (inX, inY)
def setNorthingInverted(self, northingInverted):
self._northingInverted = northingInverted
label = self.tr("S", "lblSouth") if northingInverted else self.tr(
"N", "lblNorth")
if (self._eastingLeftNorthingRight):
self.rightDirButton.setText(label)
else:
self.leftDirButton.setText(label)
def setEastingInverted(self, eastingInverted):
self._eastingInverted = eastingInverted
label = self.tr("W", "lblWest") if eastingInverted else self.tr(
"E", "lblEast")
if (self._eastingLeftNorthingRight):
self.leftDirButton.setText(label)
else:
self.rightDirButton.setText(label)
def toggleCardinalDirectionButton(self, button):
if (self._eastingLeftNorthingRight):
toggleEasting = (button == self.leftDirButton)
else:
toggleEasting = (button == self.rightDirButton)
if (toggleEasting):
self.setEastingInverted(not self._eastingInverted)
else:
self.setNorthingInverted(not self._northingInverted)
self.inputChanged.emit()
def toggledMapConnection(self, section, isConnected):
if section == CoordinatorDockWidget.SectionOutput:
self.outputCrs.setEnabled(not isConnected)
self.mapConnectionChanged.emit(section, isConnected)
def __inputFieldsChangedInternal(self):
#coordinatorLog("fields changed internal triggered")
self._setToolsEnabled(self.hasInput())
if (self.hasInput()):
if (self.leftDMS.isVisible()):
(leftValue, rightValue) = self.calculateDecimalDegreesFromDMS()
self.inLeftDec.setText(QLocale().toString(leftValue, "f", 9))
self.inRightDec.setText(QLocale().toString(rightValue, "f", 9))
else:
# calculate DMS Values
leftValue = QLocale().toFloat(self.inLeftDec.text())[0]
rightValue = QLocale().toFloat(self.inRightDec.text())[0]
x = leftValue if self._eastingLeftNorthingRight else rightValue
y = rightValue if self._eastingLeftNorthingRight else leftValue
self.setDmsInputFromDecimal(x, y, False)
else:
if (self.leftDMS.isVisible()):
self.inLeftDec.setText(None)
self.inRightDec.setText(None)
else:
for f in self._widgetlistInputDms:
f.setText(None)
self.inputChanged.emit()
def copyResultToClipBoard(self, which):
cb = QApplication.clipboard()
cb.clear(mode=cb.Clipboard)
if which == CoordinatorDockWidget.SideLeft:
content = self.resultLeft.text()
elif which == CoordinatorDockWidget.SideRight:
content = self.resultRight.text()
else:
content = "%s\t%s" % (self.resultLeft.text(),
self.resultRight.text())
cb.setText(content, mode=cb.Clipboard)
def showHelpButtonClicked(self):
if not hasattr(self, "helpview"):
helpBasepath = "%s/help" % os.path.normpath(
os.path.dirname(__file__))
helpUrl = QUrl(
pathlib.Path("%s/index.html" % helpBasepath).as_uri())
cssUrl = QUrl(pathlib.Path("%s/help.css" % helpBasepath).as_uri())
self.helpview = QWebView()
self.helpview.settings().setUserStyleSheetUrl(cssUrl)
self.helpview.load(helpUrl)
self.helpview.show()
def closeEvent(self, event):
self.closingPlugin.emit()
event.accept()