QGIS/python/plugins/processing/gui/enummodelerwidget.py
2018-05-11 15:49:06 +10:00

143 lines
4.7 KiB
Python

# -*- coding: utf-8 -*-
"""
***************************************************************************
EnumModelerWidget.py
---------------------
Date : May 2018
Copyright : (C) 2018 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. *
* *
***************************************************************************
"""
__author__ = 'Alexander Bruy'
__date__ = 'May 2018'
__copyright__ = '(C) 2018, Alexander Bruy'
# This will get replaced with a git SHA1 when you do a git archive
__revision__ = '$Format:%H$'
import os
from qgis.PyQt import uic
from qgis.PyQt.QtCore import Qt
from qgis.PyQt.QtGui import QStandardItemModel, QStandardItem
from qgis.core import QgsApplication
pluginPath = os.path.split(os.path.dirname(__file__))[0]
WIDGET, BASE = uic.loadUiType(
os.path.join(pluginPath, 'ui', 'enummodelerwidgetbase.ui'))
class EnumModelerWidget(BASE, WIDGET):
def __init__(self, parent=None):
super(EnumModelerWidget, self).__init__(parent)
self.setupUi(self)
self.btnAdd.setIcon(QgsApplication.getThemeIcon('/symbologyAdd.svg'))
self.btnRemove.setIcon(QgsApplication.getThemeIcon('/symbologyRemove.svg'))
self.btnClear.setIcon(QgsApplication.getThemeIcon('/mIconClearText.svg'))
self.btnAdd.clicked.connect(self.addItem)
self.btnRemove.clicked.connect(lambda: self.removeItems())
self.btnClear.clicked.connect(lambda: self.removeItems(True))
self.lstItems.setModel(QStandardItemModel())
self.lstItems.clicked.connect(self.handleCheckbox)
def handleCheckbox(self, index):
model = self.lstItems.model()
clickedItem = model.itemFromIndex(index)
prevIndex = None
for i in range(model.rowCount()):
if model.item(i).checkState() == Qt.Checked:
prevIndex = i
break
if prevIndex is None:
clickedItem.setCheckState(Qt.Checked)
else:
if self.chkAllowMultiple.isChecked():
clickedItem.setCheckState(Qt.Checked)
else:
model.item(prevIndex).setCheckState(Qt.Unchecked)
clickedItem.setCheckState(Qt.Checked)
def addItem(self):
model = self.lstItems.model()
item = QStandardItem('new item')
item.setCheckable(True)
item.setCheckState(Qt.Unchecked)
item.setDropEnabled(False)
model.appendRow(item)
def removeItems(self, removeAll=False):
if removeAll:
self.lstItems.model().clear()
else:
self.lstItems.setUpdatesEnabled(False)
indexes = sorted(self.lstItems.selectionModel().selectedIndexes())
for i in reversed(indexes):
self.lstItems.model().removeRow(i.row())
self.lstItems.setUpdatesEnabled(True)
def options(self):
items = []
model = self.lstItems.model()
for i in range(model.rowCount()):
item = model.item(i)
items.append(item.text())
return items
def defaultOptions(self):
options = []
model = self.lstItems.model()
for i in range(model.rowCount()):
item = model.item(i)
if item.checkState() == Qt.Checked:
options.append(i)
return options if len(options) > 0 else None
def allowMultiple(self):
return self.chkAllowMultiple.isChecked()
def setOptions(self, options):
model = self.lstItems.model()
for i in options:
item = QStandardItem()
item.setCheckable(True)
item.setCheckState(Qt.Unchecked)
item.setDropEnabled(False)
model.appendRow(item)
def setDefault(self, index):
model = self.lstItems.model()
item = model.item(index, 0)
if item:
item.setCheckState(Qt.Checked)
def setAllowMultiple(self, allowMultiple):
self.chkAllowMultiple.setChecked(allowMultiple)
model = self.lstItems.model()
for i in range(model.rowCount()):
if model.item(i).checkState() == Qt.Checked:
model.item(i).setCheckState(Qt.Unchecked)
break