/
ParametersDialog.py
243 lines (211 loc) · 9.45 KB
/
ParametersDialog.py
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from PyQt4.QtCore import *
from PyQt4.QtGui import *
from PyQt4 import QtCore, QtGui
from sextante.core.QGisLayers import QGisLayers
from sextante.parameters.ParameterRaster import ParameterRaster
from sextante.parameters.ParameterVector import ParameterVector
from sextante.parameters.ParameterBoolean import ParameterBoolean
from sextante.parameters.ParameterSelection import ParameterSelection
from sextante.parameters.ParameterMultipleInput import ParameterMultipleInput
from sextante.gui.MultipleInputPanel import MultipleInputPanel
from sextante.parameters.ParameterFixedTable import ParameterFixedTable
from sextante.gui.FixedTablePanel import FixedTablePanel
from sextante.parameters.ParameterNumber import ParameterNumber
from sextante.parameters.ParameterRange import ParameterRange
from sextante.parameters.ParameterTableField import ParameterTableField
from sextante.parameters.ParameterTable import ParameterTable
try:
_fromUtf8 = QtCore.QString.fromUtf8
except AttributeError:
_fromUtf8 = lambda s: s
class ParametersDialog(QtGui.QDialog):
def __init__(self, alg):
QtGui.QDialog.__init__(self)
self.setModal(True)
self.alg = None
self.ui = Ui_ParametersDialog()
self.ui.setupUi(self, alg)
class Ui_ParametersDialog(object):
SAVE_TO_TEMP_FILE = "[Save to temporary file]"
NOT_SELECTED = "[Not selected]"
def setupUi(self, dialog, alg):
self.alg = alg
self.dialog = dialog
self.valueItems = {}
self.dependentItems = {}
dialog.setObjectName(_fromUtf8("Parameters"))
dialog.resize(650, 450)
self.buttonBox = QtGui.QDialogButtonBox(dialog)
self.buttonBox.setGeometry(QtCore.QRect(110, 400, 441, 32))
self.buttonBox.setOrientation(QtCore.Qt.Horizontal)
self.buttonBox.setStandardButtons(QtGui.QDialogButtonBox.Cancel|QtGui.QDialogButtonBox.Ok)
self.buttonBox.setObjectName(_fromUtf8("buttonBox"))
self.tableWidget = QtGui.QTableWidget(dialog)
self.tableWidget.setGeometry(QtCore.QRect(5, 5, 640, 350))
self.tableWidget.setSelectionMode(QtGui.QAbstractItemView.NoSelection)
self.tableWidget.setColumnCount(2)
self.tableWidget.setColumnWidth(0,300)
self.tableWidget.setColumnWidth(1,300)
self.tableWidget.setHorizontalHeaderItem(0, QtGui.QTableWidgetItem("Parameter"))
self.tableWidget.setHorizontalHeaderItem(1, QtGui.QTableWidgetItem("Value"))
self.tableWidget.setObjectName(_fromUtf8("tableWidget"))
self.tableWidget.verticalHeader().setVisible(False)
self.setTableContent()
dialog.setWindowTitle(self.alg.name)
QtCore.QObject.connect(self.buttonBox, QtCore.SIGNAL(_fromUtf8("accepted()")), self.accept)
QtCore.QObject.connect(self.buttonBox, QtCore.SIGNAL(_fromUtf8("rejected()")), self.reject)
QtCore.QMetaObject.connectSlotsByName(dialog)
def getWidgetFromParameter(self, param):
if isinstance(param, ParameterRaster):
item = QtGui.QComboBox()
layers = QGisLayers.getRasterLayers()
if (param.optional):
item.addItem(self.NOT_SELECTED, None)
for layer in layers:
item.addItem(layer.name(), layer)
elif isinstance(param, ParameterVector):
item = QtGui.QComboBox()
layers = QGisLayers.getVectorLayers()
if (param.optional):
item.addItem(self.NOT_SELECTED, None)
for layer in layers:
item.addItem(layer.name(), layer)
item.currentIndexChanged.connect(self.updateDependentFields)
item.name = param.name
elif isinstance(param, ParameterBoolean):
item = QtGui.QComboBox()
item.addItem("Yes")
item.addItem("No")
elif isinstance(param, ParameterTableField):
item = QtGui.QComboBox()
if param.parent in self.dependentItems:
list = self.dependentItems[param.parent]
else:
list = []
self.dependentItems[param.parent] = list
list.append(param.name)
layers = QGisLayers.getVectorLayers()
if len(layers)>0:
fields = self.getFields(layers[0])
for i in fields:
item.addItem(fields[i].name())
elif isinstance(param, ParameterSelection):
item = QtGui.QComboBox()
item.addItems(param.options)
elif isinstance(param, ParameterFixedTable):
item = FixedTablePanel(param)
elif isinstance(param, ParameterMultipleInput):
if param.datatype == ParameterMultipleInput.TYPE_VECTOR_ANY:
options = QGisLayers.getVectorLayers()
else:
options = QGisLayers.getRasterLayers()
opts = []
for opt in options:
opts.append(opt.name())
item = MultipleInputPanel(opts)
else:
item = QtGui.QLineEdit()
if isinstance(param, ParameterNumber):
item.setText("0")
elif isinstance(param, ParameterRange):
item.setText("0,1")
return item
def updateDependentFields(self):
sender = self.dialog.sender()
if not isinstance(sender, QComboBox):
return
layer = sender.itemData(sender.currentIndex()).toPyObject()
children = self.dependentItems[sender.name]
for child in children:
widget = self.valueItems[child]
widget.clear()
fields = self.getFields(layer)
for i in fields:
widget.addItem(fields[i].name())
def getFields(self, layer):
return layer.dataProvider().fields()
def setTableContent(self):
params = self.alg.parameters
outputs = self.alg.outputs
numParams = len(self.alg.parameters)
numOutputs = len(self.alg.outputs)
self.tableWidget.setRowCount(numParams + numOutputs)
i=0
for param in params:
item = QtGui.QTableWidgetItem(param.description)
item.setFlags(QtCore.Qt.ItemIsEnabled)
self.tableWidget.setItem(i,0, item)
item = self.getWidgetFromParameter(param)
self.valueItems[param.name] = item
self.tableWidget.setCellWidget(i,1, item)
self.tableWidget.setRowHeight(i,22)
i+=1
for output in outputs:
item = QtGui.QTableWidgetItem(output.description)
item.setFlags(QtCore.Qt.ItemIsEnabled)
self.tableWidget.setItem(i,0, item)
item = QtGui.QLineEdit()
item.setText(self.SAVE_TO_TEMP_FILE)
self.valueItems[output.name] = item
self.tableWidget.setCellWidget(i,1, item)
self.tableWidget.setRowHeight(i,22)
i+=1
def setParamValues(self):
params = self.alg.parameters
outputs = self.alg.outputs
for param in params:
if not self.setParamValue(param, self.valueItems[param.name]):
return False
for output in outputs:
filename = str(self.valueItems[output.name].text())
if filename.strip == "" or filename == self.SAVE_TO_TEMP_FILE:
output.channel = None
else:
output.channel = filename
return True
def setParamValue(self, param, widget):
if isinstance(param, ParameterRaster):
param.value = widget.itemData(widget.currentIndex()).toPyObject()
elif isinstance(param, ParameterVector):
param.value = widget.itemData(widget.currentIndex()).toPyObject()
elif isinstance(param, ParameterTable):
param.value = widget.itemData(widget.currentIndex()).toPyObject()
elif isinstance(param, ParameterBoolean):
param.value = widget.currentIndex() == 0
elif isinstance(param, ParameterSelection):
param.value = widget.currentIndex()
elif isinstance(param, ParameterFixedTable):
param.value = widget.table
elif isinstance(param, ParameterMultipleInput):
if param.datatype == ParameterMultipleInput.TYPE_VECTOR_ANY:
options = QGisLayers.getVectorLayers()
else:
options = QGisLayers.getRasterLayers()
value = []
if len(widget.selectedoptions) == 0 and not param.optional:
return False
for index in widget.selectedoptions:
value.append(options[index])
param.value = value
elif isinstance(param, ParameterRange):
text = widget.text()
tokens = text.split(",")
if len(tokens)!= 2:
return False
try:
n1 = float(tokens[0])
n2 = float(tokens[1])
except:
return False
else:
param.value = widget.text()
return True
def accept(self):
if self.setParamValues():
self.dialog.alg = self.alg
self.dialog.close()
else:
QMessageBox.warning(self.dialog, "Unable to execute algorithm", "Wrong or missing parameter values")
def reject(self):
self.dialog.alg = None
self.dialog.close()