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103 lines
3.9 KiB
Python
103 lines
3.9 KiB
Python
# -*- 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 ui_widgetPolygonize 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.resolutions = ("highest", "average", "lowest")
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self.setupUi(self)
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BasePluginWidget.__init__(self, self.iface, "gdal_polygonize.py")
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self.outSelector.setType( self.outSelector.FILE )
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self.outputFormat = Utils.fillVectorOutputFormat()
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self.setParamsStatus(
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[
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(self.inSelector, SIGNAL("filenameChanged()")),
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(self.outSelector, SIGNAL("filenameChanged()")),
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(self.maskSelector, SIGNAL("filenameChanged()"), self.maskCheck),
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(self.fieldEdit, SIGNAL("textChanged(const QString &)"), self.fieldCheck)
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]
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)
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self.connect(self.inSelector, SIGNAL("selectClicked()"), self.fillInputFileEdit)
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self.connect(self.outSelector, SIGNAL("selectClicked()"), self.fillOutputFileEdit)
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self.connect(self.maskSelector, SIGNAL("selectClicked()"), self.fillMaskFileEdit)
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def onLayersChanged(self):
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self.inSelector.setLayers( Utils.LayerRegistry.instance().getRasterLayers() )
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self.maskSelector.setLayers( Utils.LayerRegistry.instance().getRasterLayers() )
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def fillInputFileEdit(self):
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lastUsedFilter = Utils.FileFilter.lastUsedRasterFilter()
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inputFile = Utils.FileDialog.getOpenFileName(self, self.tr( "Select the input file for Polygonize" ), Utils.FileFilter.allRastersFilter(), lastUsedFilter )
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if inputFile.isEmpty():
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return
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Utils.FileFilter.setLastUsedRasterFilter(lastUsedFilter)
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self.inSelector.setFilename(inputFile)
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def fillOutputFileEdit(self):
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lastUsedFilter = Utils.FileFilter.lastUsedVectorFilter()
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outputFile, encoding = Utils.FileDialog.getSaveFileName(self, self.tr( "Select where to save the Polygonize output" ), Utils.FileFilter.allVectorsFilter(), lastUsedFilter, True)
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if outputFile.isEmpty():
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return
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Utils.FileFilter.setLastUsedVectorFilter(lastUsedFilter)
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self.outputFormat = Utils.fillVectorOutputFormat( lastUsedFilter, outputFile )
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self.outSelector.setFilename(outputFile)
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self.lastEncoding = encoding
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def fillMaskFileEdit(self):
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lastUsedFilter = Utils.FileFilter.lastUsedRasterFilter()
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maskFile = Utils.FileDialog.getOpenFileName(self, self.tr( "Select the input file for Polygonize" ), Utils.FileFilter.allRastersFilter(), lastUsedFilter )
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if maskFile.isEmpty():
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return
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Utils.FileFilter.setLastUsedRasterFilter(lastUsedFilter)
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self.maskSelector.setFilename(maskFile)
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def getArguments(self):
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arguments = QStringList()
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arguments << self.getInputFileName()
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outputFn = self.getOutputFileName()
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maskFn = self.getMaskFileName()
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if self.maskCheck.isChecked() and not maskFn.isEmpty():
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arguments << "-mask"
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arguments << maskFn
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if not outputFn.isEmpty():
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arguments << "-f"
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arguments << self.outputFormat
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arguments << outputFn
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if not outputFn.isEmpty():
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arguments << QFileInfo( outputFn ).baseName()
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if self.fieldCheck.isChecked() and not self.fieldEdit.text().isEmpty():
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arguments << self.fieldEdit.text()
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return arguments
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def getOutputFileName(self):
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return self.outSelector.filename()
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def getInputFileName(self):
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return self.inSelector.filename()
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def getMaskFileName(self):
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return self.maskSelector.filename()
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def addLayerIntoCanvas(self, fileInfo):
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vl = self.iface.addVectorLayer(fileInfo.filePath(), fileInfo.baseName(), "ogr")
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if vl != None and vl.isValid():
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if hasattr(self, 'lastEncoding'):
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vl.setProviderEncoding(self.lastEncoding)
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