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117 lines
4.1 KiB
Python
117 lines
4.1 KiB
Python
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# -*- coding: utf-8 -*-
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from PyQt4.QtCore import *
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from PyQt4.QtGui import *
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from qgis.core import *
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from qgis.gui import *
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from osgeo import ogr
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from ui_widgetRasterize import Ui_GdalToolsWidget as Ui_Widget
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from widgetPluginBase import GdalToolsBasePluginWidget as BasePluginWidget
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import GdalTools_utils as Utils
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class GdalToolsDialog(QWidget, Ui_Widget, BasePluginWidget):
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def __init__(self, iface):
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QWidget.__init__(self)
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self.iface = iface
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self.setupUi(self)
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BasePluginWidget.__init__(self, self.iface, "gdal_rasterize")
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self.lastEncoding = Utils.getLastUsedEncoding()
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self.setParamsStatus(
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[
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(self.inputLayerCombo, [SIGNAL("currentIndexChanged(int)"), SIGNAL("editTextChanged(const QString &)")] ),
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(self.outputFileEdit, SIGNAL("textChanged(const QString &)")),
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(self.attributeComboBox, SIGNAL("currentIndexChanged(int)"))
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]
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)
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self.connect(self.selectInputFileButton, SIGNAL("clicked()"), self.fillInputFileEdit)
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self.connect(self.selectOutputFileButton, SIGNAL("clicked()"), self.fillOutputFileEdit)
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self.connect(self.inputLayerCombo, SIGNAL("currentIndexChanged(int)"), self.fillFieldsCombo)
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# fill layers combo
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self.fillInputLayerCombo()
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def fillInputLayerCombo( self ):
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self.inputLayerCombo.clear()
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( self.layers, names ) = Utils.getVectorLayers()
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self.inputLayerCombo.addItems( names )
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def fillFieldsCombo(self):
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index = self.inputLayerCombo.currentIndex()
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if index < 0:
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return
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self.lastEncoding = self.layers[index].dataProvider().encoding()
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self.loadFields( self.getInputFileName() )
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def fillInputFileEdit(self):
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lastUsedFilter = Utils.FileFilter.lastUsedVectorFilter()
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inputFile, encoding = Utils.FileDialog.getOpenFileName(self, self.tr( "Select the input file for Rasterize" ), Utils.FileFilter.allVectorsFilter(), lastUsedFilter, True)
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if inputFile.isEmpty():
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return
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Utils.FileFilter.setLastUsedVectorFilter(lastUsedFilter)
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self.inputLayerCombo.setCurrentIndex(-1)
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self.inputLayerCombo.setEditText(inputFile)
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self.lastEncoding = encoding
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self.loadFields( inputFile )
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def fillOutputFileEdit(self):
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lastUsedFilter = Utils.FileFilter.lastUsedRasterFilter()
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outputFile = Utils.FileDialog.getOpenFileName(self, self.tr( "Select the raster file to save the results to" ), Utils.FileFilter.allRastersFilter(), lastUsedFilter)
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if outputFile.isEmpty():
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return
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Utils.FileFilter.setLastUsedRasterFilter(lastUsedFilter)
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self.outputFileEdit.setText(outputFile)
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def getArguments(self):
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arguments = QStringList()
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if self.attributeComboBox.currentIndex() >= 0:
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arguments << "-a"
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arguments << self.attributeComboBox.currentText()
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if self.inputLayerCombo.currentIndex() >= 0:
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arguments << "-l"
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arguments << QFileInfo(self.layers[ self.inputLayerCombo.currentIndex() ].source()).baseName()
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elif not self.inputLayerCombo.currentText().isEmpty():
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arguments << "-l"
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arguments << QFileInfo(self.inputLayerCombo.currentText()).baseName()
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arguments << self.getInputFileName()
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arguments << self.outputFileEdit.text()
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return arguments
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def getInputFileName(self):
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if self.inputLayerCombo.currentIndex() >= 0:
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return self.layers[self.inputLayerCombo.currentIndex()].source()
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return self.inputLayerCombo.currentText()
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def getOutputFileName(self):
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return self.outputFileEdit.text()
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def addLayerIntoCanvas(self, fileInfo):
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self.iface.addRasterLayer(fileInfo.filePath())
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def loadFields(self, vectorFile):
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self.attributeComboBox.clear()
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if vectorFile.isEmpty():
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return
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try:
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(fields, names) = Utils.getVectorFields(vectorFile)
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except Exception, e:
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QErrorMessage(self).showMessage( str(e) )
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self.inputLayerCombo.clearEditText()
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self.inputLayerCombo.setCurrentIndex(-1)
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return
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ncodec = QTextCodec.codecForName(self.lastEncoding)
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for name in names:
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self.attributeComboBox.addItem( ncodec.toUnicode(name) )
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