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326 lines
13 KiB
Python
326 lines
13 KiB
Python
# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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AlgorithmExecutionDialog.py
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---------------------
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Date : August 2012
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Copyright : (C) 2012 by Victor Olaya
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(C) 2013 by CS Systemes d'information (CS SI)
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Email : volayaf at gmail dot com
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otb at c-s dot fr (CS SI)
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Contributors : Victor Olaya
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Alexia Mondot (CS SI) - managing the new parameter ParameterMultipleExternalInput
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***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************
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"""
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__author__ = 'Victor Olaya'
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__date__ = 'August 2012'
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__copyright__ = '(C) 2012, Victor Olaya'
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# This will get replaced with a git SHA1 when you do a git archive
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__revision__ = '$Format:%H$'
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import os
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from PyQt4.QtCore import *
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from PyQt4.QtGui import *
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from PyQt4 import QtCore, QtGui, QtWebKit
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from processing.core.ProcessingLog import ProcessingLog
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from processing.core.ProcessingConfig import ProcessingConfig
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from processing.gui.Postprocessing import handleAlgorithmResults
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from processing.gui.AlgorithmExecutor import runalg, runalgIterating
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from processing.core.parameters import *
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from processing.core.outputs import OutputRaster
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from processing.core.outputs import OutputVector
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from processing.core.outputs import OutputTable
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from processing.tools import dataobjects
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from qgis.utils import iface
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class AlgorithmExecutionDialog(QtGui.QDialog):
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class InvalidParameterValue(Exception):
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def __init__(self, param, widget):
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(self.parameter, self.widget) = (param, widget)
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def __init__(self, alg, mainWidget):
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QtGui.QDialog.__init__(self, iface.mainWindow(), QtCore.Qt.WindowSystemMenuHint
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| QtCore.Qt.WindowTitleHint)
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self.executed = False
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self.mainWidget = mainWidget
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self.alg = alg
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self.resize(650, 450)
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self.buttonBox = QtGui.QDialogButtonBox()
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self.buttonBox.setOrientation(QtCore.Qt.Horizontal)
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self.buttonBox.setStandardButtons(QtGui.QDialogButtonBox.Close)
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self.runButton = QtGui.QPushButton()
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self.runButton.setText('Run')
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self.buttonBox.addButton(self.runButton,
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QtGui.QDialogButtonBox.ActionRole)
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self.runButton.clicked.connect(self.accept)
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self.setWindowTitle(self.alg.name)
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self.progressLabel = QtGui.QLabel()
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self.progress = QtGui.QProgressBar()
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self.progress.setMinimum(0)
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self.progress.setMaximum(100)
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self.progress.setValue(0)
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self.verticalLayout = QtGui.QVBoxLayout(self)
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self.verticalLayout.setSpacing(6)
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self.verticalLayout.setMargin(9)
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self.tabWidget = QtGui.QTabWidget()
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self.tabWidget.setMinimumWidth(300)
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self.tabWidget.addTab(self.mainWidget, 'Parameters')
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self.verticalLayout.addWidget(self.tabWidget)
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self.logText = QTextEdit()
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self.logText.readOnly = True
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self.tabWidget.addTab(self.logText, 'Log')
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self.webView = QtWebKit.QWebView()
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html = None
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url = None
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isText, help = self.alg.help()
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if help is not None:
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if isText:
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html = help;
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else:
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url = QtCore.QUrl(help)
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else:
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html = '<h2>Sorry, no help is available for this \
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algorithm.</h2>'
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try:
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if html:
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self.webView.setHtml(html)
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elif url:
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self.webView.load(url)
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except:
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self.webView.setHtml('<h2>Could not open help file :-( </h2>')
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self.tabWidget.addTab(self.webView, 'Help')
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self.verticalLayout.addWidget(self.progressLabel)
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self.verticalLayout.addWidget(self.progress)
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self.verticalLayout.addWidget(self.buttonBox)
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self.setLayout(self.verticalLayout)
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self.buttonBox.rejected.connect(self.close)
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self.showDebug = ProcessingConfig.getSetting(
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ProcessingConfig.SHOW_DEBUG_IN_DIALOG)
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def setParamValues(self):
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params = self.alg.parameters
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outputs = self.alg.outputs
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for param in params:
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if param.hidden:
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continue
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if isinstance(param, ParameterExtent):
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continue
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if not self.setParamValue(param,
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self.paramTable.valueItems[param.name]):
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raise AlgorithmExecutionDialog.InvalidParameterValue(param,
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self.paramTable.valueItems[param.name])
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for param in params:
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if isinstance(param, ParameterExtent):
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if not self.setParamValue(param,
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self.paramTable.valueItems[param.name]):
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raise AlgorithmExecutionDialog.InvalidParameterValue(param,
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self.paramTable.valueItems[param.name])
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for output in outputs:
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if output.hidden:
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continue
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output.value = self.paramTable.valueItems[output.name].getValue()
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if isinstance(output, (OutputRaster, OutputVector, OutputTable)):
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output.open = self.paramTable.checkBoxes[output.name].isChecked()
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return True
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def setParamValue(self, param, widget):
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"""
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set the .value of the parameter according to the given widget
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the way to get the value is different for each value,
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so there is a code for each kind of parameter
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param : -il <ParameterMultipleInput> or -method <ParameterSelection> ...
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"""
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if isinstance(param, ParameterRaster):
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return param.setValue(widget.getValue())
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elif isinstance(param, (ParameterVector, ParameterTable)):
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try:
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return param.setValue(widget.itemData(widget.currentIndex()))
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except:
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return param.setValue(widget.getValue())
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elif isinstance(param, ParameterBoolean):
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return param.setValue(widget.currentIndex() == 0)
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elif isinstance(param, ParameterSelection):
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return param.setValue(widget.currentIndex())
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elif isinstance(param, ParameterFixedTable):
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return param.setValue(widget.table)
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elif isinstance(param, ParameterRange):
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return param.setValue(widget.getValue())
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if isinstance(param, ParameterTableField):
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if param.optional and widget.currentIndex() == 0:
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return param.setValue(None)
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return param.setValue(widget.currentText())
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elif isinstance(param, ParameterMultipleInput):
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if param.datatype == ParameterMultipleInput.TYPE_FILE:
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return param.setValue(widget.selectedoptions)
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else:
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if param.datatype == ParameterMultipleInput.TYPE_VECTOR_ANY:
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options = dataobjects.getVectorLayers()
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else:
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options = dataobjects.getRasterLayers()
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return param.setValue([options[i] for i in widget.selectedoptions])
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elif isinstance(param, (ParameterNumber, ParameterFile, ParameterCrs,
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ParameterExtent)):
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return param.setValue(widget.getValue())
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elif isinstance(param, ParameterString):
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if param.multiline:
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return param.setValue(unicode(widget.toPlainText()))
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else:
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return param.setValue(unicode(widget.text()))
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else:
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return param.setValue(unicode(widget.text()))
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def accept(self):
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checkCRS = ProcessingConfig.getSetting(
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ProcessingConfig.WARN_UNMATCHING_CRS)
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try:
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self.setParamValues()
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if checkCRS and not self.alg.checkInputCRS():
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reply = QMessageBox.question(self, "Unmatching CRS's",
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'Layers do not all use the same CRS.\n'
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+ 'This can cause unexpected results.\n'
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+ 'Do you want to continue?',
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QtGui.QMessageBox.Yes | QtGui.QMessageBox.No,
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QtGui.QMessageBox.No)
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if reply == QtGui.QMessageBox.No:
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return
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msg = self.alg.checkParameterValuesBeforeExecuting()
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if msg:
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QMessageBox.warning(self, 'Unable to execute algorithm', msg)
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return
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self.runButton.setEnabled(False)
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self.buttonBox.button(
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QtGui.QDialogButtonBox.Close).setEnabled(False)
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buttons = self.paramTable.iterateButtons
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self.iterateParam = None
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for i in range(len(buttons.values())):
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button = buttons.values()[i]
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if button.isChecked():
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self.iterateParam = buttons.keys()[i]
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break
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self.tabWidget.setCurrentIndex(1) # Log tab
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self.progress.setMaximum(0)
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self.progressLabel.setText('Processing algorithm...')
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QApplication.setOverrideCursor(QCursor(Qt.WaitCursor))
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self.setInfo('<b>Algorithm %s starting...</b>' % self.alg.name)
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# make sure the log tab is visible before executing the algorithm
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try:
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self.repaint()
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except:
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pass
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if self.iterateParam:
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if runalgIterating(self.alg,
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self.iterateParam, self):
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self.finish()
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else:
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QApplication.restoreOverrideCursor()
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self.resetGUI()
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else:
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command = self.alg.getAsCommand()
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if command:
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ProcessingLog.addToLog(ProcessingLog.LOG_ALGORITHM,
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command)
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if runalg(self.alg, self):
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self.finish()
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else:
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QApplication.restoreOverrideCursor()
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self.resetGUI()
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except AlgorithmExecutionDialog.InvalidParameterValue, ex:
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try:
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self.buttonBox.accepted.connect(lambda :
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ex.widget.setPalette(QPalette()))
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palette = ex.widget.palette()
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palette.setColor(QPalette.Base, QColor(255, 255, 0))
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ex.widget.setPalette(palette)
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self.progressLabel.setText('<b>Missing parameter value: '
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+ ex.parameter.description + '</b>')
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return
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except:
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QMessageBox.critical(self, 'Unable to execute algorithm',
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'Wrong or missing parameter values')
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def finish(self):
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keepOpen = ProcessingConfig.getSetting(
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ProcessingConfig.KEEP_DIALOG_OPEN)
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if self.iterateParam is None:
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handleAlgorithmResults(self.alg, self, not keepOpen)
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self.executed = True
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self.setInfo('Algorithm %s finished' % self.alg.name)
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QApplication.restoreOverrideCursor()
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if not keepOpen:
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self.close()
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else:
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self.resetGUI()
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if self.alg.getHTMLOutputsCount() > 0:
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self.setInfo('HTML output has been generated by this '
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+ 'algorithm.\nOpen the results dialog to check it.')
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def error(self, msg):
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QApplication.restoreOverrideCursor()
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self.setInfo(msg, True)
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self.resetGUI()
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self.tabWidget.setCurrentIndex(1) # log tab
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def resetGUI(self):
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QApplication.restoreOverrideCursor()
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self.progressLabel.setText('')
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self.progress.setMaximum(100)
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self.progress.setValue(0)
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self.runButton.setEnabled(True)
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self.buttonBox.button(QtGui.QDialogButtonBox.Close).setEnabled(True)
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def setInfo(self, msg, error=False):
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if error:
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self.logText.append('<span style="color:red">' + msg + '</span>')
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else:
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self.logText.append(msg)
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QCoreApplication.processEvents()
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def setCommand(self, cmd):
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if self.showDebug:
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self.setInfo('<tt>' + cmd + '<tt>')
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QCoreApplication.processEvents()
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def setDebugInfo(self, msg):
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if self.showDebug:
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self.setInfo('<span style="color:blue">' + msg + '</span>')
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QCoreApplication.processEvents()
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def setConsoleInfo(self, msg):
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if self.showDebug:
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self.setCommand('<span style="color:darkgray">' + msg + '</span>')
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QCoreApplication.processEvents()
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def setPercentage(self, i):
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if self.progress.maximum() == 0:
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self.progress.setMaximum(100)
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self.progress.setValue(i)
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QCoreApplication.processEvents()
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def setText(self, text):
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self.progressLabel.setText(text)
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self.setInfo(text, False)
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QCoreApplication.processEvents()
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