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"""
***************************************************************************
MultipleInputDialog.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 warnings
from pathlib import Path
from qgis.core import (
QgsSettings,
QgsProcessing,
QgsVectorFileWriter,
QgsProviderRegistry,
QgsProcessingModelChildParameterSource,
)
from qgis.PyQt import uic
from qgis.PyQt.QtCore import Qt, QByteArray, QCoreApplication
from qgis.PyQt.QtWidgets import (
QDialog,
QAbstractItemView,
QPushButton,
QDialogButtonBox,
QFileDialog,
)
from qgis.PyQt.QtGui import QStandardItemModel, QStandardItem
pluginPath = os.path.split(os.path.dirname(__file__))[0]
with warnings.catch_warnings():
warnings.filterwarnings("ignore", category=DeprecationWarning)
WIDGET, BASE = uic.loadUiType(
os.path.join(pluginPath, "ui", "DlgMultipleSelection.ui")
)
class MultipleInputDialog(BASE, WIDGET):
def __init__(self, options, selectedoptions=None, datatype=None):
super().__init__(None)
self.setupUi(self)
self.datatype = datatype
self.model = None
self.options = []
for i, option in enumerate(options):
if option is None or isinstance(option, str):
self.options.append((i, option))
else:
self.options.append((option[0], option[1]))
self.selectedoptions = selectedoptions or []
# Additional buttons
self.btnSelectAll = QPushButton(self.tr("Select All"))
self.buttonBox.addButton(
self.btnSelectAll, QDialogButtonBox.ButtonRole.ActionRole
)
self.btnClearSelection = QPushButton(self.tr("Clear Selection"))
self.buttonBox.addButton(
self.btnClearSelection, QDialogButtonBox.ButtonRole.ActionRole
)
self.btnToggleSelection = QPushButton(self.tr("Toggle Selection"))
self.buttonBox.addButton(
self.btnToggleSelection, QDialogButtonBox.ButtonRole.ActionRole
)
if self.datatype is not None:
btnAddFile = QPushButton(
QCoreApplication.translate("MultipleInputDialog", "Add File(s)…")
)
btnAddFile.clicked.connect(self.addFiles)
self.buttonBox.addButton(btnAddFile, QDialogButtonBox.ButtonRole.ActionRole)
btnAddDir = QPushButton(
QCoreApplication.translate("MultipleInputDialog", "Add Directory…")
)
btnAddDir.clicked.connect(self.addDirectory)
self.buttonBox.addButton(btnAddDir, QDialogButtonBox.ButtonRole.ActionRole)
self.btnSelectAll.clicked.connect(lambda: self.selectAll(True))
self.btnClearSelection.clicked.connect(lambda: self.selectAll(False))
self.btnToggleSelection.clicked.connect(self.toggleSelection)
self.settings = QgsSettings()
self.restoreGeometry(
self.settings.value("/Processing/multipleInputDialogGeometry", QByteArray())
)
self.lstLayers.setSelectionMode(
QAbstractItemView.SelectionMode.ExtendedSelection
)
self.lstLayers.setDragDropMode(QAbstractItemView.DragDropMode.InternalMove)
self.populateList()
self.finished.connect(self.saveWindowGeometry)
def saveWindowGeometry(self):
self.settings.setValue(
"/Processing/multipleInputDialogGeometry", self.saveGeometry()
)
def populateList(self):
self.model = QStandardItemModel()
for value, text in self.options:
item = QStandardItem(text)
item.setData(value, Qt.ItemDataRole.UserRole)
item.setCheckState(
Qt.CheckState.Checked
if value in self.selectedoptions
else Qt.CheckState.Unchecked
)
item.setCheckable(True)
item.setDropEnabled(False)
self.model.appendRow(item)
# add extra options (e.g. manually added layers)
for t in [o for o in self.selectedoptions if not isinstance(o, int)]:
if isinstance(t, QgsProcessingModelChildParameterSource):
item = QStandardItem(t.staticValue())
else:
item = QStandardItem(t)
item.setData(item.text(), Qt.ItemDataRole.UserRole)
item.setCheckState(Qt.CheckState.Checked)
item.setCheckable(True)
item.setDropEnabled(False)
self.model.appendRow(item)
self.lstLayers.setModel(self.model)
def accept(self):
self.selectedoptions = []
model = self.lstLayers.model()
for i in range(model.rowCount()):
item = model.item(i)
if item.checkState() == Qt.CheckState.Checked:
self.selectedoptions.append(item.data(Qt.ItemDataRole.UserRole))
QDialog.accept(self)
def reject(self):
self.selectedoptions = None
QDialog.reject(self)
def getItemsToModify(self):
items = []
if len(self.lstLayers.selectedIndexes()) > 1:
for i in self.lstLayers.selectedIndexes():
items.append(self.model.itemFromIndex(i))
else:
for i in range(self.model.rowCount()):
items.append(self.model.item(i))
return items
def selectAll(self, value):
for item in self.getItemsToModify():
item.setCheckState(
Qt.CheckState.Checked if value else Qt.CheckState.Unchecked
)
def toggleSelection(self):
for item in self.getItemsToModify():
checked = item.checkState() == Qt.CheckState.Checked
item.setCheckState(
Qt.CheckState.Unchecked if checked else Qt.CheckState.Checked
)
def getFileFilter(self, datatype):
"""
Returns a suitable file filter pattern for the specified parameter definition
:param param:
:return:
"""
if datatype == QgsProcessing.SourceType.TypeRaster:
return QgsProviderRegistry.instance().fileRasterFilters()
elif datatype == QgsProcessing.SourceType.TypeFile:
return self.tr("All files (*.*)")
else:
exts = QgsVectorFileWriter.supportedFormatExtensions()
for i in range(len(exts)):
exts[i] = self.tr("{0} files (*.{1})").format(
exts[i].upper(), exts[i].lower()
)
return self.tr("All files (*.*)") + ";;" + ";;".join(exts)
def addFiles(self):
filter = self.getFileFilter(self.datatype)
settings = QgsSettings()
path = str(settings.value("/Processing/LastInputPath"))
ret, selected_filter = QFileDialog.getOpenFileNames(
self, self.tr("Select File(s)"), path, filter
)
if ret:
files = list(ret)
settings.setValue(
"/Processing/LastInputPath", os.path.dirname(str(files[0]))
)
for filename in files:
item = QStandardItem(filename)
item.setData(filename, Qt.ItemDataRole.UserRole)
item.setCheckState(Qt.CheckState.Checked)
item.setCheckable(True)
item.setDropEnabled(False)
self.model.appendRow(item)
def addDirectory(self):
settings = QgsSettings()
path = str(settings.value("/Processing/LastInputPath"))
ret = QFileDialog.getExistingDirectory(self, self.tr("Select File(s)"), path)
if ret:
exts = []
if self.datatype == QgsProcessing.SourceType.TypeVector:
exts = QgsVectorFileWriter.supportedFormatExtensions()
elif self.datatype == QgsProcessing.SourceType.TypeRaster:
for t in (
QgsProviderRegistry.instance().fileRasterFilters().split(";;")[1:]
):
for e in t[t.index("(") + 1 : -1].split(" "):
if e != "*.*" and e.startswith("*."):
exts.append(e[2:])
files = []
for pp in Path(ret).rglob("*"):
if not pp.is_file():
continue
if exts and pp.suffix[1:] not in exts:
continue
p = pp.as_posix()
files.append(p)
settings.setValue("/Processing/LastInputPath", ret)
for filename in files:
item = QStandardItem(filename)
item.setData(filename, Qt.ItemDataRole.UserRole)
item.setCheckState(Qt.CheckState.Checked)
item.setCheckable(True)
item.setDropEnabled(False)
self.model.appendRow(item)
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