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wrappers_map_theme.py
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wrappers_map_theme.py
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# -*- coding: utf-8 -*-
"""
***************************************************************************
wrappers_map_theme.py - Map theme widget wrappers
---------------------
Date : August 2017
Copyright : (C) 2017 by OPENGIS.ch
Email : mario@opengis.ch
***************************************************************************
* *
* 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 qgis.core import QgsProject
from qgis.PyQt.QtWidgets import QComboBox
from processing.gui.wrappers import (
BasicWidgetWrapper
)
class MapThemeWrapper(BasicWidgetWrapper):
"""
WidgetWrapper for ParameterString that createe a combobox widget
with the existing map themes.
"""
def createWidget(self):
self._combo = QComboBox()
self._combo.addItem('', '')
for item in self.items():
self._combo.addItem(item, item)
self._combo.currentIndexChanged.connect(lambda:
self.widgetValueHasChanged.emit(self))
return self._combo
def items(self):
return QgsProject.instance().mapThemeCollection().mapThemes()
def setValue(self, value):
self.setComboValue(value, self._combo)
def value(self):
return self.comboValue(combobox=self._combo)