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"""
***************************************************************************
BatchOutputSelectionPanel.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. *
* *
***************************************************************************
"""
__author__ = "Victor Olaya"
__date__ = "August 2012"
__copyright__ = "(C) 2012, Victor Olaya"
import os
import re
from qgis.core import (
QgsMapLayer,
QgsSettings,
QgsProcessingParameterFolderDestination,
QgsProcessingParameterRasterLayer,
QgsProcessingParameterFeatureSource,
QgsProcessingParameterVectorLayer,
QgsProcessingParameterMultipleLayers,
QgsProcessingParameterMapLayer,
QgsProcessingParameterBoolean,
QgsProcessingParameterEnum,
QgsProject,
QgsProcessingParameterMatrix,
)
from qgis.PyQt.QtWidgets import (
QWidget,
QPushButton,
QLineEdit,
QHBoxLayout,
QSizePolicy,
QFileDialog,
)
from processing.gui.AutofillDialog import AutofillDialog
class BatchOutputSelectionPanel(QWidget):
def __init__(self, output, alg, row, col, panel):
super().__init__(None)
self.alg = alg
self.row = row
self.col = col
self.output = output
self.panel = panel
self.table = self.panel.tblParameters
self.horizontalLayout = QHBoxLayout(self)
self.horizontalLayout.setSpacing(2)
self.horizontalLayout.setMargin(0)
self.text = QLineEdit()
self.text.setText("")
self.text.setMinimumWidth(300)
self.text.setSizePolicy(
QSizePolicy.Policy.Expanding, QSizePolicy.Policy.Expanding
)
self.horizontalLayout.addWidget(self.text)
self.pushButton = QPushButton()
self.pushButton.setText("…")
self.pushButton.clicked.connect(self.showSelectionDialog)
self.horizontalLayout.addWidget(self.pushButton)
self.setLayout(self.horizontalLayout)
def showSelectionDialog(self):
if isinstance(self.output, QgsProcessingParameterFolderDestination):
self.selectDirectory()
return
filefilter = self.output.createFileFilter()
settings = QgsSettings()
if settings.contains("/Processing/LastBatchOutputPath"):
path = str(settings.value("/Processing/LastBatchOutputPath"))
else:
path = ""
filename, selectedFileFilter = QFileDialog.getSaveFileName(
self, self.tr("Save File"), path, filefilter
)
if filename:
if not filename.lower().endswith(
tuple(re.findall("\\*(\\.[a-z]{1,10})", filefilter))
):
ext = re.search("\\*(\\.[a-z]{1,10})", selectedFileFilter)
if ext:
filename += ext.group(1)
settings.setValue(
"/Processing/LastBatchOutputPath", os.path.dirname(filename)
)
dlg = AutofillDialog(self.alg)
dlg.exec()
if dlg.mode is not None:
if dlg.mode == AutofillDialog.DO_NOT_AUTOFILL:
self.table.cellWidget(self.row, self.col).setValue(filename)
elif dlg.mode == AutofillDialog.FILL_WITH_NUMBERS:
n = self.table.rowCount() - self.row
for i in range(n):
name = (
filename[: filename.rfind(".")]
+ str(i + 1)
+ filename[filename.rfind(".") :]
)
self.table.cellWidget(i + self.row, self.col).setValue(name)
elif dlg.mode == AutofillDialog.FILL_WITH_PARAMETER:
for row in range(self.row, self.table.rowCount()):
v = self.panel.valueForParameter(row - 1, dlg.param_name)
param = self.alg.parameterDefinition(dlg.param_name)
if isinstance(
param,
(
QgsProcessingParameterRasterLayer,
QgsProcessingParameterFeatureSource,
QgsProcessingParameterVectorLayer,
QgsProcessingParameterMultipleLayers,
QgsProcessingParameterMapLayer,
),
):
if isinstance(v, QgsMapLayer):
s = v.name()
else:
if v in QgsProject.instance().mapLayers():
layer = QgsProject.instance().mapLayer(v)
# value is a layer ID, but we'd prefer to show a layer name if it's unique in the project
if (
len(
[
l
for _, l in QgsProject.instance()
.mapLayers()
.items()
if l.name().lower()
== layer.name().lower()
]
)
== 1
):
s = layer.name()
else:
# otherwise fall back to layer id
s = v
else:
# else try to use file base name
# TODO: this is bad for database sources!!
s = os.path.basename(v)
s = os.path.splitext(s)[0]
elif isinstance(param, QgsProcessingParameterBoolean):
s = "true" if v else "false"
elif isinstance(param, QgsProcessingParameterEnum):
s = param.options()[v]
else:
s = str(v)
name = (
filename[: filename.rfind(".")]
+ s
+ filename[filename.rfind(".") :]
)
self.table.cellWidget(row, self.col).setValue(name)
def selectDirectory(self):
settings = QgsSettings()
if settings.contains("/Processing/LastBatchOutputPath"):
lastDir = str(settings.value("/Processing/LastBatchOutputPath"))
else:
lastDir = ""
dirName = QFileDialog.getExistingDirectory(
self, self.tr("Output Directory"), lastDir, QFileDialog.Option.ShowDirsOnly
)
if dirName:
self.table.cellWidget(self.row, self.col).setValue(dirName)
settings.setValue("/Processing/LastBatchOutputPath", dirName)
def setValue(self, text):
return self.text.setText(text)
def getValue(self):
return str(self.text.text())
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