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# -*- coding: utf-8 -*-
"""
***************************************************************************
doRasterize.py
---------------------
Date : June 2010
Copyright : (C) 2010 by Giuseppe Sucameli
Email : brush dot tyler 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__ = 'Giuseppe Sucameli'
__date__ = 'June 2010'
__copyright__ = '(C) 2010, Giuseppe Sucameli'
# This will get replaced with a git SHA1 when you do a git archive
__revision__ = '$Format:%H$'
from qgis.PyQt.QtCore import QFileInfo, QTextCodec
from qgis.PyQt.QtWidgets import QWidget, QMessageBox, QErrorMessage
from .ui_widgetRasterize import Ui_GdalToolsWidget as Ui_Widget
from .widgetPluginBase import GdalToolsBasePluginWidget as BasePluginWidget
from . import GdalTools_utils as Utils
class GdalToolsDialog(QWidget, Ui_Widget, BasePluginWidget):
def __init__(self, iface):
QWidget.__init__(self)
self.iface = iface
self.setupUi(self)
BasePluginWidget.__init__(self, self.iface, "gdal_rasterize")
self.outSelector.setType(self.outSelector.FILE)
# set the default QSpinBoxes and QProgressBar value
self.widthSpin.setValue(3000)
self.heightSpin.setValue(3000)
self.horizresSpin.setValue(1)
self.vertresSpin.setValue(1)
self.lastEncoding = Utils.getLastUsedEncoding()
self.setParamsStatus([
(self.inSelector, "filenameChanged"),
(self.outSelector, "filenameChanged"),
(self.attributeComboBox, "currentIndexChanged"),
([self.widthSpin, self.heightSpin], "valueChanged"),
([self.horizresSpin, self.vertresSpin], "valueChanged")
])
self.inSelector.selectClicked.connect(self.fillInputFileEdit)
self.outSelector.selectClicked.connect(self.fillOutputFileEdit)
self.inSelector.layerChanged.connect(self.fillFieldsCombo)
self.radioSetSize.toggled.connect(self.someValueChanged)
self.radioSetResolution.toggled.connect(self.someValueChanged)
def onLayersChanged(self):
self.inSelector.setLayers(Utils.LayerRegistry.instance().getVectorLayers())
def fillFieldsCombo(self):
if self.inSelector.layer() is None:
return
self.lastEncoding = self.inSelector.layer().dataProvider().encoding()
self.loadFields(self.getInputFileName())
def fillInputFileEdit(self):
lastUsedFilter = Utils.FileFilter.lastUsedVectorFilter()
inputFile, encoding = Utils.FileDialog.getOpenFileName(self, self.tr("Select the input file for Rasterize"), Utils.FileFilter.allVectorsFilter(), lastUsedFilter, True)
if not inputFile:
return
Utils.FileFilter.setLastUsedVectorFilter(lastUsedFilter)
self.inSelector.setFilename(inputFile)
self.lastEncoding = encoding
self.loadFields(inputFile)
def fillOutputFileEdit(self):
lastUsedFilter = Utils.FileFilter.lastUsedRasterFilter()
# rasterize supports output file creation for GDAL 1.8
gdalVersion = Utils.GdalConfig.versionNum()
if gdalVersion >= 1800:
fileDialogFunc = Utils.FileDialog.getSaveFileName
filters = Utils.FileFilter.saveRastersFilter()
else:
fileDialogFunc = Utils.FileDialog.getOpenFileName
filters = Utils.FileFilter.allRastersFilter()
outputFile = fileDialogFunc(self, self.tr("Select the raster file to save the results to"), filters, lastUsedFilter)
if not outputFile:
return
Utils.FileFilter.setLastUsedRasterFilter(lastUsedFilter)
self.outSelector.setFilename(outputFile)
# required either -ts or -tr to create the output file
if gdalVersion >= 1800:
if not QFileInfo(outputFile).exists():
QMessageBox.information(self, self.tr("Output size or resolution required"), self.tr("The output file doesn't exist. You must set up the output size or resolution to create it."))
self.radioSetSize.setChecked(True)
def getArguments(self):
arguments = []
if self.attributeComboBox.currentIndex() >= 0:
arguments.append("-a")
arguments.append(self.attributeComboBox.currentText())
if self.radioSetSize.isChecked():
arguments.append("-ts")
arguments.append(self.widthSpin.value())
arguments.append(self.heightSpin.value())
if self.radioSetResolution.isChecked():
arguments.append("-tr")
arguments.append(self.horizresSpin.value())
arguments.append(self.vertresSpin.value())
inputFn = self.getInputFileName()
if inputFn:
arguments.append("-l")
arguments.append(QFileInfo(inputFn).baseName())
arguments.append(inputFn)
arguments.append(self.getOutputFileName())
return arguments
def getInputFileName(self):
return self.inSelector.filename()
def getOutputFileName(self):
return self.outSelector.filename()
def addLayerIntoCanvas(self, fileInfo):
self.iface.addRasterLayer(fileInfo.filePath())
def loadFields(self, vectorFile):
self.attributeComboBox.clear()
if not vectorFile:
return
try:
(fields, names) = Utils.getVectorFields(vectorFile)
except Utils.UnsupportedOGRFormat as e:
QErrorMessage(self).showMessage(e.args[0])
self.inSelector.setLayer(None)
return
ncodec = QTextCodec.codecForName(self.lastEncoding)
for name in names:
self.attributeComboBox.addItem(ncodec.toUnicode(name))
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