# -*- coding: utf-8 -*- """ *************************************************************************** AlgorithmDialog.py --------------------- Date : August 2012 Copyright : (C) 2012 by Victor Olaya Email : volayaf at gmail dot com *************************************************************************** * * * This program is free software; you can redistribute it and/or modify * * it under the terms of the GNU General Public License as published by * * the Free Software Foundation; either version 2 of the License, or * * (at your option) any later version. * * * *************************************************************************** """ from builtins import range __author__ = 'Victor Olaya' __date__ = 'August 2012' __copyright__ = '(C) 2012, Victor Olaya' # This will get replaced with a git SHA1 when you do a git archive __revision__ = '$Format:%H$' from qgis.PyQt.QtCore import Qt from qgis.PyQt.QtWidgets import QMessageBox, QApplication, QPushButton, QWidget, QVBoxLayout, QSizePolicy from qgis.PyQt.QtGui import QCursor, QColor, QPalette from qgis.core import (QgsProject, QgsProcessingUtils, QgsMessageLog, QgsProcessingParameterDefinition, QgsProcessingOutputRasterLayer, QgsProcessingOutputVectorLayer, QgsProcessingOutputLayerDefinition, QgsProcessingParameterFeatureSink, QgsProcessingParameterRasterOutput, QgsProcessingAlgorithm) from qgis.gui import QgsMessageBar from qgis.utils import iface from processing.core.ProcessingLog import ProcessingLog from processing.core.ProcessingConfig import ProcessingConfig from processing.gui.ParametersPanel import ParametersPanel from processing.gui.BatchAlgorithmDialog import BatchAlgorithmDialog from processing.gui.AlgorithmDialogBase import AlgorithmDialogBase from processing.gui.AlgorithmExecutor import execute, executeIterating from processing.gui.Postprocessing import handleAlgorithmResults from processing.core.parameters import ParameterRaster from processing.core.parameters import ParameterVector from processing.core.parameters import ParameterExtent from processing.core.parameters import ParameterMultipleInput from processing.core.GeoAlgorithm import executeAlgorithm from processing.core.outputs import OutputTable from processing.tools import dataobjects class AlgorithmDialog(AlgorithmDialogBase): def __init__(self, alg): AlgorithmDialogBase.__init__(self, alg) self.alg = alg self.setMainWidget(self.getParametersPanel(alg, self)) self.bar = QgsMessageBar() self.bar.setSizePolicy(QSizePolicy.Minimum, QSizePolicy.Fixed) self.layout().insertWidget(0, self.bar) self.cornerWidget = QWidget() layout = QVBoxLayout() layout.setContentsMargins(0, 0, 0, 5) self.tabWidget.setStyleSheet("QTabBar::tab { height: 30px; }") self.runAsBatchButton = QPushButton(self.tr("Run as batch process...")) self.runAsBatchButton.clicked.connect(self.runAsBatch) layout.addWidget(self.runAsBatchButton) self.cornerWidget.setLayout(layout) self.tabWidget.setCornerWidget(self.cornerWidget) def getParametersPanel(self, alg, parent): return ParametersPanel(parent, alg) def runAsBatch(self): self.close() dlg = BatchAlgorithmDialog(self.alg) dlg.show() dlg.exec_() def getParamValues(self): parameters = {} for param in self.alg.parameterDefinitions(): if param.flags() & QgsProcessingParameterDefinition.FlagHidden: continue if not param.isDestination(): wrapper = self.mainWidget.wrappers[param.name()] value = None if wrapper.widget: value = wrapper.value() parameters[param.name()] = value if not param.checkValueIsAcceptable(value): raise AlgorithmDialogBase.InvalidParameterValue(param, wrapper.widget) else: dest_project = None if not param.flags() & QgsProcessingParameterDefinition.FlagHidden and \ isinstance(param, (QgsProcessingParameterRasterOutput, QgsProcessingParameterFeatureSink, OutputTable)): if self.mainWidget.checkBoxes[param.name()].isChecked(): dest_project = QgsProject.instance() value = self.mainWidget.outputWidgets[param.name()].getValue() if value: value.destinationProject = dest_project parameters[param.name()] = value return parameters def checkExtentCRS(self): unmatchingCRS = False hasExtent = False context = dataobjects.createContext() projectCRS = iface.mapCanvas().mapSettings().destinationCrs() layers = QgsProcessingUtils.compatibleLayers(QgsProject.instance()) for param in self.alg.parameterDefinitions(): if isinstance(param, (ParameterRaster, ParameterVector, ParameterMultipleInput)): if param.value: if isinstance(param, ParameterMultipleInput): inputlayers = param.value.split(';') else: inputlayers = [param.value] for inputlayer in inputlayers: for layer in layers: if layer.source() == inputlayer: if layer.crs() != projectCRS: unmatchingCRS = True p = QgsProcessingUtils.mapLayerFromString(inputlayer, context) if p is not None: if p.crs() != projectCRS: unmatchingCRS = True if isinstance(param, ParameterExtent): if param.skip_crs_check: continue value = self.mainWidget.wrappers[param.name()].widget.leText.text().strip() if value: hasExtent = True return hasExtent and unmatchingCRS def accept(self): super(AlgorithmDialog, self)._saveGeometry() context = dataobjects.createContext() checkCRS = ProcessingConfig.getSetting(ProcessingConfig.WARN_UNMATCHING_CRS) try: parameters = self.getParamValues() QgsMessageLog.logMessage(str(parameters), 'Processing', QgsMessageLog.CRITICAL) # TODO if False and checkCRS and not self.alg.checkInputCRS(): reply = QMessageBox.question(self, self.tr("Unmatching CRS's"), self.tr('Layers do not all use the same CRS. This can ' 'cause unexpected results.\nDo you want to ' 'continue?'), QMessageBox.Yes | QMessageBox.No, QMessageBox.No) if reply == QMessageBox.No: return checkExtentCRS = ProcessingConfig.getSetting(ProcessingConfig.WARN_UNMATCHING_EXTENT_CRS) #TODO if False and checkExtentCRS and self.checkExtentCRS(): reply = QMessageBox.question(self, self.tr("Extent CRS"), self.tr('Extent parameters must use the same CRS as the input layers.\n' 'Your input layers do not have the same extent as the project, ' 'so the extent might be in a wrong CRS if you have selected it from the canvas.\n' 'Do you want to continue?'), QMessageBox.Yes | QMessageBox.No, QMessageBox.No) if reply == QMessageBox.No: return ok, msg = self.alg.checkParameterValues(parameters, context) if msg: QMessageBox.warning( self, self.tr('Unable to execute algorithm'), msg) return self.btnRun.setEnabled(False) self.btnClose.setEnabled(False) buttons = self.mainWidget.iterateButtons self.iterateParam = None for i in range(len(list(buttons.values()))): button = list(buttons.values())[i] if button.isChecked(): self.iterateParam = list(buttons.keys())[i] break self.progressBar.setMaximum(0) self.lblProgress.setText(self.tr('Processing algorithm...')) # Make sure the Log tab is visible before executing the algorithm try: self.tabWidget.setCurrentIndex(1) self.repaint() except: pass QApplication.setOverrideCursor(QCursor(Qt.WaitCursor)) self.setInfo( self.tr('Algorithm {0} starting...').format(self.alg.displayName())) if self.iterateParam: if executeIterating(self.alg, parameters, self.iterateParam, context, self.feedback): self.finish(parameters, context) else: QApplication.restoreOverrideCursor() self.resetGUI() else: # TODO #command = self.alg.getAsCommand() #if command: # ProcessingLog.addToLog(command) self.buttonCancel.setEnabled(self.alg.flags() & QgsProcessingAlgorithm.FlagCanCancel) result = executeAlgorithm(self.alg, parameters, context, self.feedback) self.buttonCancel.setEnabled(False) self.finish(result, context) #TODO #else: # QApplication.restoreOverrideCursor() # self.resetGUI() except AlgorithmDialogBase.InvalidParameterValue as e: try: self.buttonBox.accepted.connect(lambda e=e: e.widget.setPalette(QPalette())) palette = e.widget.palette() palette.setColor(QPalette.Base, QColor(255, 255, 0)) e.widget.setPalette(palette) except: pass self.bar.clearWidgets() self.bar.pushMessage("", self.tr("Wrong or missing parameter value: {0}").format(e.parameter.description()), level=QgsMessageBar.WARNING, duration=5) def finish(self, result, context): keepOpen = ProcessingConfig.getSetting(ProcessingConfig.KEEP_DIALOG_OPEN) if self.iterateParam is None: if not handleAlgorithmResults(self.alg, context, self.feedback, not keepOpen): self.resetGUI() return self.executed = True self.setInfo(self.tr('Algorithm {0} finished').format(self.alg.displayName())) QApplication.restoreOverrideCursor() if not keepOpen: self.close() else: self.resetGUI() if self.alg.hasHtmlOutputs(): self.setInfo( self.tr('HTML output has been generated by this algorithm.' '\nOpen the results dialog to check it.')) def closeEvent(self, event): QgsProject.instance().layerWasAdded.disconnect(self.mainWidget.layerRegistryChanged) QgsProject.instance().layersWillBeRemoved.disconnect(self.mainWidget.layerRegistryChanged) super(AlgorithmDialog, self).closeEvent(event)