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qtilesdialog.py
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qtilesdialog.py
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# -*- coding: utf-8 -*-
#******************************************************************************
#
# QTiles
# ---------------------------------------------------------
# Generates tiles from QGIS project
#
# Copyright (C) 2012-2022 NextGIS (info@nextgis.com)
#
# This source 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.
#
# This code is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
# details.
#
# A copy of the GNU General Public License is available on the World Wide Web
# at <http://www.gnu.org/licenses/>. You can also obtain it by writing
# to the Free Software Foundation, 51 Franklin Street, Suite 500 Boston,
# MA 02110-1335 USA.
#
#******************************************************************************
import os
import locale
import math
import operator
from qgis.PyQt.QtCore import QFileInfo, Qt, QDir, pyqtSignal, pyqtSlot
from qgis.PyQt.QtGui import QIcon
from qgis.PyQt.QtWidgets import QDialog, QDialogButtonBox, QMessageBox, QFileDialog
from qgis.PyQt import uic
from qgis.core import QgsRectangle
from . import tilingthread
from . import qtiles_utils as utils
from .compat import QgsCoordinateTransform, QgsCoordinateReferenceSystem, QgsSettings, getSaveFileName
FORM_CLASS, _ = uic.loadUiType(os.path.join(os.path.dirname(__file__), 'ui/qtilesdialogbase.ui'))
class QTilesDialog(QDialog, FORM_CLASS):
# MAX_ZOOM_LEVEL = 18
MIN_ZOOM_LEVEL = 0
def __init__(self, iface):
QDialog.__init__(self)
self.setupUi(self)
self.btnOk = self.buttonBox.addButton(self.tr("Run"), QDialogButtonBox.AcceptRole)
# self.spnZoomMax.setMaximum(self.MAX_ZOOM_LEVEL)
self.spnZoomMax.setMinimum(self.MIN_ZOOM_LEVEL)
# self.spnZoomMin.setMaximum(self.MAX_ZOOM_LEVEL)
self.spnZoomMin.setMinimum(self.MIN_ZOOM_LEVEL)
self.spnZoomMin.valueChanged.connect(self.spnZoomMax.setMinimum)
self.spnZoomMax.valueChanged.connect(self.spnZoomMin.setMaximum)
self.iface = iface
self.verticalLayout_2.setAlignment(Qt.AlignTop)
self.workThread = None
self.FORMATS = {
self.tr('ZIP archives (*.zip *.ZIP)'): '.zip',
self.tr('MBTiles databases (*.mbtiles *.MBTILES)'): '.mbtiles'}
self.settings = QgsSettings('NextGIS', 'QTiles')
self.grpParameters.setSettings(self.settings)
self.btnClose = self.buttonBox.button(QDialogButtonBox.Close)
self.rbExtentLayer.toggled.connect(self.__toggleLayerSelector)
self.chkLockRatio.stateChanged.connect(self.__toggleHeightEdit)
self.spnTileWidth.valueChanged.connect(self.__updateTileSize)
self.btnBrowse.clicked.connect(self.__select_output)
self.cmbFormat.activated.connect(self.formatChanged)
self.rbOutputZip.toggled.connect(self.__toggleTarget)
self.rbOutputDir.toggled.connect(self.__toggleTarget)
self.rbOutputNGM.toggled.connect(self.__toggleTarget)
self.rbOutputNGM.setIcon(QIcon(':/icons/ngm_index_24x24.png'))
self.lInfoIconOutputZip.linkActivated.connect(self.show_output_info)
self.lInfoIconOutputDir.linkActivated.connect(self.show_output_info)
self.lInfoIconOutputNGM.linkActivated.connect(self.show_output_info)
self.manageGui()
def show_output_info(self, href):
title = self.tr("Output type info")
message = ""
if self.sender() is self.lInfoIconOutputZip:
message = self.tr("Save tiles as Zip or MBTiles")
elif self.sender() is self.lInfoIconOutputDir:
message = self.tr("Save tiles as directory structure")
elif self.sender() is self.lInfoIconOutputNGM:
message = "<table cellspacing='10'> <tr> \
<td> \
<img src=':/icons/ngm_index_24x24.png'/> \
</td> \
<td> \
%s \
</td> \
</tr> </table>" % self.tr("Prepare package for <a href='http://nextgis.ru/en/nextgis-mobile/'> NextGIS Mobile </a>")
# QMessageBox.information(
# self,
# title,
# message
# )
msgBox = QMessageBox()
msgBox.setWindowTitle(title)
msgBox.setText(message)
msgBox.exec_()
def formatChanged(self):
if self.cmbFormat.currentText() == 'JPG':
self.spnTransparency.setEnabled(False)
self.spnQuality.setEnabled(True)
else:
self.spnTransparency.setEnabled(True)
self.spnQuality.setEnabled(False)
def manageGui(self):
layers = utils.getMapLayers()
for layer in sorted(iter(list(layers.items())), key=operator.itemgetter(1)):
groupName = utils.getLayerGroup(layer[0])
if groupName == '':
self.cmbLayers.addItem(layer[1], layer[0])
else:
self.cmbLayers.addItem('%s - %s' % (layer[1], groupName), layer[0])
self.rbOutputZip.setChecked(self.settings.value('outputToZip', True, type=bool))
self.rbOutputDir.setChecked(self.settings.value('outputToDir', False, type=bool))
self.rbOutputNGM.setChecked(self.settings.value('outputToNGM', False, type=bool))
if self.rbOutputZip.isChecked():
self.leDirectoryName.setEnabled(False)
self.leTilesFroNGM.setEnabled(False)
elif self.rbOutputDir.isChecked():
self.leZipFileName.setEnabled(False)
self.leTilesFroNGM.setEnabled(False)
elif self.rbOutputNGM.isChecked():
self.leZipFileName.setEnabled(False)
self.leDirectoryName.setEnabled(False)
else:
self.leZipFileName.setEnabled(False)
self.leDirectoryName.setEnabled(False)
self.leTilesFroNGM.setEnabled(False)
self.leZipFileName.setText(self.settings.value('outputToZip_Path', ''))
self.leDirectoryName.setText(self.settings.value('outputToDir_Path', ''))
self.leTilesFroNGM.setText(self.settings.value('outputToNGM_Path', ''))
self.cmbLayers.setEnabled(False)
self.leRootDir.setText(self.settings.value('rootDir', 'Mapnik'))
self.rbExtentCanvas.setChecked(self.settings.value('extentCanvas', True, type=bool))
self.rbExtentFull.setChecked(self.settings.value('extentFull', False, type=bool))
self.rbExtentLayer.setChecked(self.settings.value('extentLayer', False, type=bool))
self.spnZoomMin.setValue(self.settings.value('minZoom', 0, type=int))
self.spnZoomMax.setValue(self.settings.value('maxZoom', 18, type=int))
self.chkLockRatio.setChecked(self.settings.value('keepRatio', True, type=bool))
self.spnTileWidth.setValue(self.settings.value('tileWidth', 256, type=int))
self.spnTileHeight.setValue(self.settings.value('tileHeight', 256, type=int))
self.spnTransparency.setValue(self.settings.value('transparency', 255, type=int))
self.spnQuality.setValue(self.settings.value('quality', 70, type=int))
self.cmbFormat.setCurrentIndex(int(self.settings.value('format', 0)))
self.chkAntialiasing.setChecked(self.settings.value('enable_antialiasing', False, type=bool))
self.chkTMSConvention.setChecked(self.settings.value('use_tms_filenames', False, type=bool))
self.chkMBTilesCompression.setChecked(self.settings.value('use_mbtiles_compression', False, type=bool))
self.chkWriteJson.setChecked(self.settings.value("write_json", False, type=bool))
self.chkWriteOverview.setChecked(self.settings.value("write_overview", False, type=bool))
self.chkWriteMapurl.setChecked(self.settings.value("write_mapurl", False, type=bool))
self.chkWriteViewer.setChecked(self.settings.value("write_viewer", False, type=bool))
self.chkRenderOutsideTiles.setChecked(self.settings.value("renderOutsideTiles", True, type=bool))
self.formatChanged()
def reject(self):
QDialog.reject(self)
def accept(self):
if self.rbOutputZip.isChecked():
output = self.leZipFileName.text()
elif self.rbOutputDir.isChecked():
output = self.leDirectoryName.text()
if not QFileInfo(output).exists():
os.mkdir(QFileInfo(output).absoluteFilePath())
elif self.rbOutputNGM.isChecked():
output = self.leTilesFroNGM.text()
if self.rbExtentLayer.isChecked() and self.cmbLayers.currentIndex() < 0:
QMessageBox.warning(self, self.tr('Layer not selected'), self.tr('Please select a layer and try again.'))
return
if not output:
QMessageBox.warning(self, self.tr('No output'), self.tr('Output path is not set. Please enter correct path and try again.'))
return
fileInfo = QFileInfo(output)
if fileInfo.isDir() and not len(QDir(output).entryList(QDir.Dirs | QDir.Files | QDir.NoDotAndDotDot)) == 0:
res = QMessageBox.warning(
self,
self.tr('Directory not empty'),
self.tr('Selected directory is not empty. Continue?'),
QMessageBox.Yes | QMessageBox.No
)
if res == QMessageBox.No:
return
if self.spnZoomMin.value() > self.spnZoomMax.value():
QMessageBox.warning(self, self.tr('Wrong zoom'), self.tr('Maximum zoom value is lower than minimum. Please correct this and try again.'))
return
self.settings.setValue('rootDir', self.leRootDir.text())
self.settings.setValue('outputToZip', self.rbOutputZip.isChecked())
self.settings.setValue('outputToDir', self.rbOutputDir.isChecked())
self.settings.setValue('outputToNGM', self.rbOutputNGM.isChecked())
self.settings.setValue('extentCanvas', self.rbExtentCanvas.isChecked())
self.settings.setValue('extentFull', self.rbExtentFull.isChecked())
self.settings.setValue('extentLayer', self.rbExtentLayer.isChecked())
self.settings.setValue('minZoom', self.spnZoomMin.value())
self.settings.setValue('maxZoom', self.spnZoomMax.value())
self.settings.setValue('keepRatio', self.chkLockRatio.isChecked())
self.settings.setValue('tileWidth', self.spnTileWidth.value())
self.settings.setValue('tileHeight', self.spnTileHeight.value())
self.settings.setValue('format', self.cmbFormat.currentIndex())
self.settings.setValue('transparency', self.spnTransparency.value())
self.settings.setValue('quality', self.spnQuality.value())
self.settings.setValue('enable_antialiasing', self.chkAntialiasing.isChecked())
self.settings.setValue('use_tms_filenames', self.chkTMSConvention.isChecked())
self.settings.setValue('use_mbtiles_compression', self.chkMBTilesCompression.isChecked())
self.settings.setValue('write_json', self.chkWriteJson.isChecked())
self.settings.setValue('write_overview', self.chkWriteOverview.isChecked())
self.settings.setValue('write_mapurl', self.chkWriteMapurl.isChecked())
self.settings.setValue('write_viewer', self.chkWriteViewer.isChecked())
self.settings.setValue('renderOutsideTiles', self.chkRenderOutsideTiles.isChecked())
canvas = self.iface.mapCanvas()
if self.rbExtentCanvas.isChecked():
extent = canvas.extent()
elif self.rbExtentFull.isChecked():
extent = canvas.fullExtent()
else:
layer = utils.getLayerById(self.cmbLayers.itemData(self.cmbLayers.currentIndex()))
extent = canvas.mapSettings().layerExtentToOutputExtent(layer, layer.extent())
extent = QgsCoordinateTransform(
canvas.mapSettings().destinationCrs(),
QgsCoordinateReferenceSystem.fromEpsgId(4326)
).transform(extent)
arctanSinhPi = math.degrees(math.atan(math.sinh(math.pi)))
extent = extent.intersect(QgsRectangle(-180, -arctanSinhPi, 180, arctanSinhPi))
layers = canvas.layers()
writeMapurl = self.chkWriteMapurl.isEnabled() and self.chkWriteMapurl.isChecked()
writeViewer = self.chkWriteViewer.isEnabled() and self.chkWriteViewer.isChecked()
self.workThread = tilingthread.TilingThread(
layers,
extent,
self.spnZoomMin.value(),
self.spnZoomMax.value(),
self.spnTileWidth.value(),
self.spnTileHeight.value(),
self.spnTransparency.value(),
self.spnQuality.value(),
self.cmbFormat.currentText(),
fileInfo,
self.leRootDir.text(),
self.chkAntialiasing.isChecked(),
self.chkTMSConvention.isChecked(),
self.chkMBTilesCompression.isChecked(),
self.chkWriteJson.isChecked(),
self.chkWriteOverview.isChecked(),
self.chkRenderOutsideTiles.isChecked(),
writeMapurl,
writeViewer
)
self.workThread.rangeChanged.connect(self.setProgressRange)
self.workThread.updateProgress.connect(self.updateProgress)
self.workThread.processFinished.connect(self.processFinished)
self.workThread.processInterrupted.connect(self.processInterrupted)
self.workThread.threshold.connect(self.confirmContinueThreshold)
self.btnOk.setEnabled(False)
self.btnClose.setText(self.tr('Cancel'))
self.buttonBox.rejected.disconnect(self.reject)
self.btnClose.clicked.connect(self.stopProcessing)
self.workThread.start()
def confirmContinueThreshold(self, tilesCountThreshold):
res = QMessageBox.question(
self.parent(),
self.tr("Confirmation"),
self.tr("Estimate number of tiles more then %d! Continue?") % tilesCountThreshold,
QMessageBox.Yes | QMessageBox.No
)
if res == QMessageBox.Yes:
self.workThread.confirmContinue()
else:
self.workThread.confirmStop()
def setProgressRange(self, message, value):
self.progressBar.setFormat(message)
self.progressBar.setRange(0, value)
def updateProgress(self):
self.progressBar.setValue(self.progressBar.value() + 1)
def processInterrupted(self):
self.restoreGui()
def processFinished(self):
self.stopProcessing()
self.restoreGui()
def stopProcessing(self):
if self.workThread is not None:
self.workThread.stop()
self.workThread = None
def restoreGui(self):
self.progressBar.setFormat('%p%')
self.progressBar.setRange(0, 1)
self.progressBar.setValue(0)
self.buttonBox.rejected.connect(self.reject)
self.btnClose.clicked.disconnect(self.stopProcessing)
self.btnClose.setText(self.tr('Close'))
self.btnOk.setEnabled(True)
def __toggleTarget(self, checked):
if checked:
if self.sender() is self.rbOutputZip:
self.leZipFileName.setEnabled(True)
self.leDirectoryName.setEnabled(False)
self.leTilesFroNGM.setEnabled(False)
self.chkWriteMapurl.setEnabled(False)
self.chkWriteViewer.setEnabled(False)
self.chkWriteJson.setEnabled(True)
self.spnTileWidth.setEnabled(True)
self.chkLockRatio.setEnabled(True)
self.cmbFormat.setEnabled(True)
self.chkMBTilesCompression.setEnabled(True)
self.chkWriteOverview.setEnabled(True)
elif self.sender() is self.rbOutputDir:
self.leZipFileName.setEnabled(False)
self.leDirectoryName.setEnabled(True)
self.leTilesFroNGM.setEnabled(False)
self.chkWriteMapurl.setEnabled(True)
self.chkWriteViewer.setEnabled(True)
self.chkWriteJson.setEnabled(True)
self.chkMBTilesCompression.setEnabled(False)
self.spnTileWidth.setEnabled(True)
self.chkLockRatio.setEnabled(True)
self.cmbFormat.setEnabled(True)
self.chkWriteOverview.setEnabled(True)
elif self.sender() is self.rbOutputNGM:
self.leZipFileName.setEnabled(False)
self.leDirectoryName.setEnabled(False)
self.leTilesFroNGM.setEnabled(True)
self.chkWriteMapurl.setEnabled(False)
self.chkWriteViewer.setEnabled(False)
self.chkMBTilesCompression.setEnabled(False)
self.spnTileWidth.setValue(256)
self.spnTileWidth.setEnabled(False)
self.chkLockRatio.setCheckState(Qt.Checked)
self.chkLockRatio.setEnabled(False)
self.cmbFormat.setCurrentIndex(0)
self.cmbFormat.setEnabled(True)
self.chkWriteOverview.setChecked(False)
self.chkWriteOverview.setEnabled(False)
self.chkWriteJson.setChecked(False)
self.chkWriteJson.setEnabled(False)
def __toggleLayerSelector(self, checked):
self.cmbLayers.setEnabled(checked)
def __toggleHeightEdit(self, state):
if state == Qt.Checked:
self.lblHeight.setEnabled(False)
self.spnTileHeight.setEnabled(False)
self.spnTileHeight.setValue(self.spnTileWidth.value())
else:
self.lblHeight.setEnabled(True)
self.spnTileHeight.setEnabled(True)
@pyqtSlot(int)
def __updateTileSize(self, value):
if self.chkLockRatio.isChecked():
self.spnTileHeight.setValue(value)
def __select_output(self):
if self.rbOutputZip.isChecked():
file_directory = QFileInfo(self.settings.value('outputToZip_Path', '.')).absolutePath()
outPath = getSaveFileName(self, self.tr('Save to file'), file_directory, ';;'.join(iter(list(self.FORMATS.keys()))))
if not outPath:
return
self.leZipFileName.setText(outPath)
self.settings.setValue('outputToZip_Path', QFileInfo(outPath).absoluteFilePath())
elif self.rbOutputDir.isChecked():
dir_directory = QFileInfo(self.settings.value('outputToDir_Path', '.')).absolutePath()
outPath = QFileDialog.getExistingDirectory(self, self.tr('Save to directory'), dir_directory, QFileDialog.ShowDirsOnly)
if not outPath:
return
self.leDirectoryName.setText(outPath)
self.settings.setValue('outputToDir_Path', QFileInfo(outPath).absoluteFilePath())
elif self.rbOutputNGM.isChecked():
zip_directory = QFileInfo(self.settings.value('outputToNGM_Path', '.')).absolutePath()
outPath = getSaveFileName(self, self.tr('Save to file'), zip_directory, 'ngrc')
if not outPath:
return
if not outPath.lower().endswith('ngrc'):
outPath += '.ngrc'
self.leTilesFroNGM.setText(outPath)
self.settings.setValue('outputToNGM_Path', QFileInfo(outPath).absoluteFilePath())