# -*- coding: utf-8 -*-
"""
***************************************************************************
BatchPanel.py
---------------------
Date : November 2014
Copyright : (C) 2014 by Alexander Bruy
Email : alexander dot bruy 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 str
from builtins import range
__author__ = 'Alexander Bruy'
__date__ = 'November 2014'
__copyright__ = '(C) 2014, Alexander Bruy'
# This will get replaced with a git SHA1 when you do a git archive
__revision__ = '$Format:%H$'
import os
import json
from qgis.PyQt import uic
from qgis.PyQt.QtGui import QIcon
from qgis.PyQt.QtWidgets import QTableWidgetItem, QComboBox, QLineEdit, QHeaderView, QFileDialog, QMessageBox
from qgis.core import QgsApplication
from qgis.gui import QgsMessageBar
from processing.gui.BatchOutputSelectionPanel import BatchOutputSelectionPanel
from processing.core.parameters import ParameterFile
from processing.core.parameters import ParameterRaster
from processing.core.parameters import ParameterTable
from processing.core.parameters import ParameterVector
from processing.core.parameters import ParameterExtent
from processing.core.parameters import ParameterCrs
from processing.core.parameters import ParameterPoint
from processing.core.parameters import ParameterSelection
from processing.core.parameters import ParameterFixedTable
from processing.core.parameters import ParameterMultipleInput
pluginPath = os.path.split(os.path.dirname(__file__))[0]
WIDGET, BASE = uic.loadUiType(
os.path.join(pluginPath, 'ui', 'widgetBatchPanel.ui'))
class BatchPanel(BASE, WIDGET):
PARAMETERS = "PARAMETERS"
OUTPUTS = "OUTPUTS"
def __init__(self, parent, alg):
super(BatchPanel, self).__init__(None)
self.setupUi(self)
self.wrappers = []
self.btnAdvanced.hide()
# Set icons
self.btnAdd.setIcon(QgsApplication.getThemeIcon('/symbologyAdd.svg'))
self.btnRemove.setIcon(QgsApplication.getThemeIcon('/symbologyRemove.svg'))
self.btnOpen.setIcon(QgsApplication.getThemeIcon('/mActionFileOpen.svg'))
self.btnSave.setIcon(QgsApplication.getThemeIcon('/mActionFileSave.svg'))
self.btnAdvanced.setIcon(QgsApplication.getThemeIcon("/processingAlgorithm.svg"))
self.alg = alg
self.parent = parent
self.btnAdd.clicked.connect(self.addRow)
self.btnRemove.clicked.connect(self.removeRows)
self.btnOpen.clicked.connect(self.load)
self.btnSave.clicked.connect(self.save)
self.btnAdvanced.toggled.connect(self.toggleAdvancedMode)
self.tblParameters.horizontalHeader().sectionDoubleClicked.connect(
self.fillParameterValues)
self.initWidgets()
def layerRegistryChanged(self):
pass
def initWidgets(self):
# If there are advanced parameters — show corresponding button
for param in self.alg.parameters:
if param.isAdvanced:
self.btnAdvanced.show()
break
# Determine column count
nOutputs = self.alg.getVisibleOutputsCount() + 1
if nOutputs == 1:
nOutputs = 0
self.tblParameters.setColumnCount(
self.alg.getVisibleParametersCount() + nOutputs)
# Table headers
column = 0
for param in self.alg.parameters:
self.tblParameters.setHorizontalHeaderItem(
column, QTableWidgetItem(param.description))
if param.isAdvanced:
self.tblParameters.setColumnHidden(column, True)
column += 1
for out in self.alg.outputs:
if not out.hidden:
self.tblParameters.setHorizontalHeaderItem(
column, QTableWidgetItem(out.description))
column += 1
# Last column for indicating if output will be added to canvas
if self.alg.getVisibleOutputsCount():
self.tblParameters.setHorizontalHeaderItem(
column, QTableWidgetItem(self.tr('Load in QGIS')))
# Add three empty rows by default
for i in range(3):
self.addRow()
self.tblParameters.horizontalHeader().setSectionResizeMode(QHeaderView.Interactive)
self.tblParameters.horizontalHeader().setDefaultSectionSize(250)
self.tblParameters.horizontalHeader().setMinimumSectionSize(150)
self.tblParameters.horizontalHeader().setSectionResizeMode(QHeaderView.ResizeToContents)
self.tblParameters.verticalHeader().setSectionResizeMode(QHeaderView.ResizeToContents)
self.tblParameters.horizontalHeader().setStretchLastSection(True)
def load(self):
filename, selected_filter = QFileDialog.getOpenFileName(self,
self.tr('Open batch'), None,
self.tr('JSON files (*.json)'))
if filename:
with open(filename) as f:
values = json.load(f)
else:
# If the user clicked on the cancel button.
return
self.tblParameters.setRowCount(0)
try:
for row, alg in enumerate(values):
self.addRow()
params = alg[self.PARAMETERS]
outputs = alg[self.OUTPUTS]
column = 0
for param in self.alg.parameters:
if param.hidden:
continue
if param.name in params:
value = params[param.name]
wrapper = self.wrappers[row][column]
wrapper.setValue(value)
column += 1
for out in self.alg.outputs:
if out.hidden:
continue
if out.name in outputs:
value = outputs[out.name]
widget = self.tblParameters.cellWidget(row, column)
widget.setValue(value)
column += 1
except TypeError:
QMessageBox.critical(
self,
self.tr('Error'),
self.tr('An error occurred while reading your file.'))
def save(self):
toSave = []
for row in range(self.tblParameters.rowCount()):
algParams = {}
algOutputs = {}
col = 0
alg = self.alg.getCopy()
for param in alg.parameters:
if param.hidden:
continue
wrapper = self.wrappers[row][col]
if not self.setParamValue(param, wrapper, alg):
self.parent.bar.pushMessage("", self.tr('Wrong or missing parameter value: %s (row %d)')
% (param.description, row + 1),
level=QgsMessageBar.WARNING, duration=5)
return
algParams[param.name] = param.getValueAsCommandLineParameter()
col += 1
for out in alg.outputs:
if out.hidden:
continue
widget = self.tblParameters.cellWidget(row, col)
text = widget.getValue()
if text.strip() != '':
algOutputs[out.name] = text.strip()
col += 1
else:
self.parent.bar.pushMessage("", self.tr('Wrong or missing output value: %s (row %d)')
% (out.description, row + 1),
level=QgsMessageBar.WARNING, duration=5)
return
toSave.append({self.PARAMETERS: algParams, self.OUTPUTS: algOutputs})
filename, __ = str(QFileDialog.getSaveFileName(self,
self.tr('Save batch'),
None,
self.tr('JSON files (*.json)')))
if filename:
if not filename.endswith('.json'):
filename += '.json'
with open(filename, 'w') as f:
json.dump(toSave, f)
def setParamValue(self, param, wrapper, alg=None):
return param.setValue(wrapper.value())
def setCellWrapper(self, row, column, wrapper):
self.wrappers[row][column] = wrapper
self.tblParameters.setCellWidget(row, column, wrapper.widget)
def addRow(self):
self.wrappers.append([None] * self.tblParameters.columnCount())
self.tblParameters.setRowCount(self.tblParameters.rowCount() + 1)
wrappers = {}
row = self.tblParameters.rowCount() - 1
column = 0
for param in self.alg.parameters:
if param.hidden:
continue
wrapper = param.wrapper(self.parent, row, column)
wrappers[param.name] = wrapper
self.setCellWrapper(row, column, wrapper)
column += 1
for out in self.alg.outputs:
if out.hidden:
continue
self.tblParameters.setCellWidget(
row, column, BatchOutputSelectionPanel(
out, self.alg, row, column, self))
column += 1
if self.alg.getVisibleOutputsCount():
item = QComboBox()
item.addItem(self.tr('Yes'))
item.addItem(self.tr('No'))
item.setCurrentIndex(0)
self.tblParameters.setCellWidget(row, column, item)
for wrapper in list(wrappers.values()):
wrapper.postInitialize(list(wrappers.values()))
def removeRows(self):
if self.tblParameters.rowCount() > 2:
self.wrappers.pop()
self.tblParameters.setRowCount(self.tblParameters.rowCount() - 1)
def fillParameterValues(self, column):
wrapper = self.wrappers[0][column]
for row in range(1, self.tblParameters.rowCount()):
self.wrappers[row][column].setValue(wrapper.value())
def toggleAdvancedMode(self, checked):
for column, param in enumerate(self.alg.parameters):
if param.isAdvanced:
self.tblParameters.setColumnHidden(column, not checked)