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MainApp.py
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MainApp.py
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# -*- coding: utf-8 -*-
"""
/***************************************************************************
VFRImporter_dialog
A QGIS plugin
Tool for import RUIAN data
-------------------
begin : 2015-03-16
git sha : $Format:%
copyright : (C) 2015 by Jan Klima (C) 2016 by Dennis Dvořák
email : honzi.klima@gmail.com; dennis.dvorak@email.cz
***************************************************************************/
/***************************************************************************
* *
* 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. *
* *
***************************************************************************/
"""
# Import the PyQt, QGIS libraries and classes
import os
import sys
#import subprocess
from PyQt4 import QtCore, QtGui
from qgis.core import *
from qgis.gui import QgsMessageBar
from osgeo import ogr, gdal
from Connection import Connection
from ui_MainApp import Ui_MainApp
import time
from gdal_vfr.vfr4ogr import VfrOgr
class MainApp(QtGui.QDialog):
def __init__(self, iface, parent=None):
QtGui.QDialog.__init__(self)
self.iface = iface
self.driverTypes = {'PostgreSQL':'PG','MSSQLSpatial':'MSSQL','SQLite':'sqlite','ESRI Shapefile':'shp','GPKG':'gpkg','Nepodporuje':0}
self.driverNames = ['SQLite']
#'PostgreSQL','MSSQLSpatial','SQLite','GPKG', 'ESRI Shapefile', 'Nepodporuje'
self.missDrivers = []
self.option = {'driver':None, 'datasource':None, 'layers':[], 'layers_name':[], 'overwrite':False}
# Set up the user interface from Designer.
self.ui = Ui_MainApp()
self.ui.setupUi(self)
# test GDAL version
version = gdal.__version__.split('.', 2)
if not (int(version[0]) > 1 or int(version[1]) >= 11):
self.iface.messageBar().pushMessage(u"GDAL/OGR: požadována verze 1.11 nebo vyšší (nainstalována {}.{})".format(version[0],version[1]), level=QgsMessageBar.CRITICAL, duration=5)
# set up widget
self.ui.driverBox.setToolTip(u'Zvolte typ výstupního souboru/databáze')
self.ui.driverBox.addItem('--Vybrat--')
self.set_comboDrivers(self.driverNames)
self.ui.driverBox.insertSeparator(4)
self.ui.search.addItems(['Obec', 'ORP', 'Okres', 'Kraj'])
self.ui.search.setEditable(True)
self.ui.search.clearEditText()
self.ui.advanced.hide()
#self.ui.import_btn.setEnabled(False)
# Set up the table view
path = os.path.join(os.path.dirname(__file__), 'files','obce_cr.csv')
self.model, self.proxy = self.create_model(path)
self.ui.view.setModel(self.proxy)
self.ui.view.setEditTriggers(QtGui.QAbstractItemView.NoEditTriggers)
self.ui.view.setCornerButtonEnabled(False)
self.ui.view.setSortingEnabled(True)
self.ui.view.sortByColumn(2,0)
self.ui.view.horizontalHeader().setDefaultAlignment(QtCore.Qt.AlignLeft)
self.ui.view.horizontalHeader().setResizeMode(0,2)
self.ui.view.horizontalHeader().resizeSection(0,28)
self.ui.view.horizontalHeader().setStretchLastSection(True)
self.ui.view.verticalHeader().setResizeMode(2)
self.ui.view.verticalHeader().setDefaultSectionSize(23)
self.ui.view.verticalHeader().hide()
# SIGNAL/SLOTS CONNECTION
self.ui.driverBox.activated['QString'].connect(self.set_datasource)
self.ui.driverBox.currentIndexChanged['QString'].connect(self.enable_import)
self.ui.search.activated.connect(self.set_searching)
self.ui.search.editTextChanged.connect(self.start_searching)
self.ui.check.clicked.connect(lambda: self.set_checkstate(0))
self.ui.uncheck.clicked.connect(lambda: self.set_checkstate(1))
self.ui.advanced_btn.clicked.connect(self.show_advanced)
self.ui.import_btn.clicked.connect(self.get_options)
self.ui.buttonBox.rejected.connect(self.close)
# set combobox drivers
def set_comboDrivers(self, driverNames):
model = self.ui.driverBox.model()
for driverName in driverNames:
item = QtGui.QStandardItem(str(driverName))
driver = ogr.GetDriverByName(str(driverName))
if driver is None:
self.missDrivers.append(driverName)
item.setForeground(QtGui.QColor(180,180,180,100))
model.appendRow(item)
else:
model.appendRow(item)
# create model-view
def create_model(self, file_path):
model = QtGui.QStandardItemModel(self)
firts_line = True
header = []
header.append('')
with open(file_path, 'r') as f:
for line in f:
line = line.replace('\n','')
if firts_line:
for word in line.split(','):
word = u'{}'.format(word.decode('utf-8'))
header.append(word)
firts_line = False
else:
items = []
item = QtGui.QStandardItem('')
item.setCheckable(True)
item.setSelectable(False)
items.append(item)
for word in line.split(','):
word = u'{}'.format(word.decode('utf-8'))
item = QtGui.QStandardItem(word)
item.setSelectable(False)
items.append(item)
model.appendRow(items)
model.setHorizontalHeaderLabels(header)
proxy = QtGui.QSortFilterProxyModel()
proxy.setFilterKeyColumn(2)
proxy.setSourceModel(model)
return model, proxy
# set driver and datasource
def set_datasource(self, driverName):
if driverName in self.missDrivers:
self.ui.driverBox.setCurrentIndex(0)
self.iface.messageBar().pushMessage(u"Nainstalovaná verze GDAL nepodporuje ovladač {}".format(driverName), level=QgsMessageBar.CRITICAL, duration=5)
return 0
if driverName in ['SQLite', 'GPKG', 'ESRI Shapefile']:
connString = QtGui.QFileDialog.getSaveFileName(self,u'Vybrat/vytvořit soubor','output.{}'.format(self.driverTypes[driverName]),'{} (*.{})'.format(driverName, self.driverTypes[driverName]),QtGui.QFileDialog.DontConfirmOverwrite)
if not connString:
self.ui.driverBox.setCurrentIndex(0)
return 0
driver = ogr.GetDriverByName(str(driverName))
capability = driver.TestCapability(ogr._ogr.ODrCCreateDataSource)
if capability:
self.ui.driverBox.setToolTip(connString)
self.option['driver'] = driverName
self.option['datasource'] = connString
else:
self.iface.messageBar().pushMessage(u"Soubor {} nelze vybrat/vytvořit".format(connString), level=QgsMessageBar.CRITICAL, duration=5)
self.ui.driverBox.setCurrentIndex(0)
elif driverName in ['PostgreSQL','MSSQLSpatial']:
self.connection = Connection(self.iface, driverName, self)
self.connection.setModal(True)
self.connection.show()
self.connection.setWindowTitle(u'Připojení k databázi {}'.format(driverName))
def enable_import(self, driverName):
if driverName == '--Vybrat--':
self.ui.driverBox.setToolTip(u'Zvolte typ výstupního souboru/databáze')
self.ui.import_btn.setEnabled(False)
else:
self.ui.import_btn.setEnabled(True)
# filtering tableview
def set_searching(self, column):
self.proxy.setFilterKeyColumn(column+2)
self.ui.search.clearEditText()
def start_searching(self, searchName):
if searchName not in ['Obec', 'ORP', 'Okres', 'Kraj']:
self.proxy.setFilterRegExp(QtCore.QRegExp(searchName, QtCore.Qt.CaseInsensitive))
# check or uncheck items in qtableview
def set_checkstate(self, state):
rows = self.proxy.rowCount()
for row in xrange(0,rows):
proxyIdx = self.proxy.index(row,0)
modelIdx = self.proxy.mapToSource(proxyIdx)
item = self.model.itemFromIndex(modelIdx)
if state == 0:
item.setCheckState(QtCore.Qt.Checked)
elif state == 1:
item.setCheckState(QtCore.Qt.Unchecked)
# show advance option
def show_advanced(self):
if self.ui.advanced_btn.arrowType() == 4:
self.ui.advanced_btn.setArrowType(QtCore.Qt.DownArrow)
self.ui.advanced.show()
elif self.ui.advanced_btn.arrowType() == 2:
self.ui.advanced_btn.setArrowType(QtCore.Qt.RightArrow)
self.ui.advanced.hide()
# star importing data
def get_options(self):
if self.ui.overwrite.checkState() == QtCore.Qt.Checked:
self.option['overwrite'] = True
else: self.option['overwrite'] = False
self.option['layers'] = []
self.option['layers_name'] = []
for row in xrange(0,self.model.rowCount()):
item = self.model.item(row,0)
if item.checkState() == QtCore.Qt.Checked:
code = self.model.item(row,1).text()
name = self.model.item(row,2).text()
self.option['layers'].append(code)
self.option['layers_name'].append(name)
# create progress dialog
self.progress = QtGui.QProgressDialog(u'Probíhá import ...', u'Ukončit', 0, 0, self, QtCore.Qt.SplashScreen)
self.progress.setParent(self)
self.progress.setWindowModality(QtCore.Qt.WindowModal)
self.progress.setWindowTitle(u'Import dat RÚIAN')
self.progress.canceled.connect(self.import_close)
self.progress.setAutoClose(False)
self.progress.resize(400, 50)
self.progress.show()
# start import and set signal
self.importThread = ImportThread(self.option)
self.importThread.importEnd.connect(self.import_end)
self.importThread.importStat.connect(self.set_status)
if not self.importThread.isRunning():
self.progress.show()
self.importThread.start()
# update progress status
def set_status(self, num, tot, text, operation):
self.progress.setLabelText(u'{0} {1} z {2} ({3})'.format(operation, num, tot, text))
# terminate import
def import_close(self):
reply = QtGui.QMessageBox.question(self, u'Ukončit', u"Opravdu chcete ukončit import dat?",
QtGui.QMessageBox.Yes | QtGui.QMessageBox.No, QtGui.QMessageBox.Yes)
if reply == QtGui.QMessageBox.Yes:
self.importThread.terminate()
else:
self.progress.resize(400, 50)
self.progress.show()
# import was succesful
def import_end(self):
self.progress.cancel()
QtGui.QMessageBox.information(self, u'Import', u"Import dat proběhl úspěšně",QtGui.QMessageBox.Yes | QtGui.QMessageBox.Yes)
# close application
def close(self):
self.hide()
class ImportThread(QtCore.QThread):
importEnd = QtCore.pyqtSignal()
importStat = QtCore.pyqtSignal(int,int,str,str)
def __init__(self, option):
QtCore.QThread.__init__(self)
self.layers = option['layers']
def run(self):
# create convertor
os.environ['DATA_DIR'] = os.environ['HOMEPATH'] if sys.platform.startswith('win') else os.environ['HOME']
ogr = VfrOgr(frmt='SQLite', dsn=os.path.join(os.environ['DATA_DIR'], 'ruian.db'), overwrite=True, geom_name='OriginalniHranice')
n = len(self.layers)
i = 1
for l in self.layers:
filename = 'OB_{}_UKSH'.format(l)
QtCore.qDebug('\n (VFR) Processing file: {}'.format(filename))
# download
ogr.reset()
self.importStat.emit(i, n, l, "Download")
ogr.download([filename])
# import
self.importStat.emit(i, n, l, "Import")
ogr.run(True if i > 1 else False)
i += 1
self.importEnd.emit()