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			151 lines
		
	
	
		
			5.1 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			151 lines
		
	
	
		
			5.1 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
| # -*- coding: utf-8 -*-
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| 
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| """
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| ***************************************************************************
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|     EnumModelerWidget.py
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|     ---------------------
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|     Date                 : May 2018
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|     Copyright            : (C) 2018 by Alexander Bruy
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|     Email                : alexander dot bruy at gmail dot com
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| ***************************************************************************
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| *                                                                         *
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| *   This program is free software; you can redistribute it and/or modify  *
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| *   it under the terms of the GNU General Public License as published by  *
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| *   the Free Software Foundation; either version 2 of the License, or     *
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| *   (at your option) any later version.                                   *
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| *                                                                         *
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| ***************************************************************************
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| """
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| 
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| __author__ = 'Alexander Bruy'
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| __date__ = 'May 2018'
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| __copyright__ = '(C) 2018, Alexander Bruy'
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| 
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| import os
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| import warnings
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| 
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| from qgis.PyQt import uic
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| from qgis.PyQt.QtCore import Qt
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| from qgis.PyQt.QtGui import QStandardItemModel, QStandardItem
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| from qgis.PyQt.QtWidgets import QMessageBox
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| 
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| from qgis.core import QgsApplication
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| 
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| pluginPath = os.path.split(os.path.dirname(__file__))[0]
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| 
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| with warnings.catch_warnings():
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|     warnings.filterwarnings("ignore", category=DeprecationWarning)
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|     WIDGET, BASE = uic.loadUiType(
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|         os.path.join(pluginPath, 'ui', 'enummodelerwidgetbase.ui'))
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| 
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| 
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| class EnumModelerWidget(BASE, WIDGET):
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| 
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|     def __init__(self, parent=None):
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|         super(EnumModelerWidget, self).__init__(parent)
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|         self.setupUi(self)
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| 
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|         self.btnAdd.setIcon(QgsApplication.getThemeIcon('/symbologyAdd.svg'))
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|         self.btnRemove.setIcon(QgsApplication.getThemeIcon('/symbologyRemove.svg'))
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|         self.btnClear.setIcon(QgsApplication.getThemeIcon('console/iconClearConsole.svg'))
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| 
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|         self.btnAdd.clicked.connect(self.addItem)
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|         self.btnRemove.clicked.connect(lambda: self.removeItems())
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|         self.btnClear.clicked.connect(lambda: self.removeItems(True))
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| 
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|         self.lstItems.setModel(QStandardItemModel())
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| 
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|         self.lstItems.model().itemChanged.connect(self.onItemChanged)
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| 
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|     def onItemChanged(self, item):
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|         model = self.lstItems.model()
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|         checkedItem = None
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|         for i in range(model.rowCount()):
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|             itm = model.item(i)
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|             if itm.checkState() == Qt.Checked and itm.data() == Qt.Checked:
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|                 checkedItem = i
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|                 break
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| 
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|         model.blockSignals(True)
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|         if checkedItem is None:
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|             item.setData(item.checkState())
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|         else:
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|             if self.chkAllowMultiple.isChecked():
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|                 item.setData(item.checkState())
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|             else:
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|                 model.item(checkedItem).setCheckState(Qt.Unchecked)
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|                 model.item(checkedItem).setData(Qt.Unchecked)
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| 
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|                 item.setData(item.checkState())
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|         model.blockSignals(False)
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| 
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|     def addItem(self):
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|         model = self.lstItems.model()
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| 
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|         item = QStandardItem('new item')
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|         item.setCheckable(True)
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|         item.setDropEnabled(False)
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|         item.setData(Qt.Unchecked)
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| 
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|         model.appendRow(item)
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| 
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|     def removeItems(self, removeAll=False):
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|         if removeAll:
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|             res = QMessageBox.question(self, self.tr('Clear?'), self.tr('Are you sure you want to delete all items?'))
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|             if res == QMessageBox.Yes:
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|                 self.lstItems.model().clear()
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|         else:
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|             self.lstItems.setUpdatesEnabled(False)
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|             indexes = sorted(self.lstItems.selectionModel().selectedIndexes())
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|             for i in reversed(indexes):
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|                 self.lstItems.model().removeRow(i.row())
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|             self.lstItems.setUpdatesEnabled(True)
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| 
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|     def options(self):
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|         items = []
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|         model = self.lstItems.model()
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|         for i in range(model.rowCount()):
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|             item = model.item(i)
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|             items.append(item.text())
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| 
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|         return items
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| 
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|     def defaultOptions(self):
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|         options = []
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|         model = self.lstItems.model()
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|         for i in range(model.rowCount()):
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|             item = model.item(i)
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|             if item.checkState() == Qt.Checked:
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|                 if not self.allowMultiple():
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|                     return i
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|                 options.append(i)
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|         return options if len(options) > 0 else None
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| 
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|     def allowMultiple(self):
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|         return self.chkAllowMultiple.isChecked()
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| 
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|     def setOptions(self, options):
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|         model = self.lstItems.model()
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|         for i in options:
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|             item = QStandardItem(i)
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|             item.setCheckable(True)
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|             item.setDropEnabled(False)
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|             item.setData(Qt.Unchecked)
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| 
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|             model.appendRow(item)
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| 
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|     def setDefault(self, indexes):
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|         if indexes is None:
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|             return
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|         model = self.lstItems.model()
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|         if not isinstance(indexes, (list, tuple)):
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|             indexes = [indexes]
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|         for i in indexes:
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|             item = model.item(i)
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|             if item:
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|                 item.setCheckState(Qt.Checked)
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|                 item.setData(Qt.Checked)
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| 
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|     def setAllowMultiple(self, allowMultiple):
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|         self.chkAllowMultiple.setChecked(allowMultiple)
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