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# -*- coding: utf-8 -*-
"""
***************************************************************************
doPolygonize.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 PyQt4.QtCore import *
from PyQt4.QtGui import *
from qgis.core import *
from qgis.gui import *
from ui_widgetPolygonize import Ui_GdalToolsWidget as Ui_Widget
from widgetPluginBase import GdalToolsBasePluginWidget as BasePluginWidget
import GdalTools_utils as Utils
class GdalToolsDialog(QWidget, Ui_Widget, BasePluginWidget):
def __init__(self, iface):
QWidget.__init__(self)
self.iface = iface
self.resolutions = ("highest", "average", "lowest")
self.setupUi(self)
BasePluginWidget.__init__(self, self.iface, "gdal_polygonize.py")
self.outSelector.setType( self.outSelector.FILE )
self.outputFormat = Utils.fillVectorOutputFormat()
self.setParamsStatus(
[
(self.inSelector, SIGNAL("filenameChanged()")),
(self.outSelector, SIGNAL("filenameChanged()")),
(self.maskSelector, SIGNAL("filenameChanged()"), self.maskCheck),
(self.fieldEdit, SIGNAL("textChanged(const QString &)"), self.fieldCheck)
]
)
self.connect(self.inSelector, SIGNAL("selectClicked()"), self.fillInputFileEdit)
self.connect(self.outSelector, SIGNAL("selectClicked()"), self.fillOutputFileEdit)
self.connect(self.maskSelector, SIGNAL("selectClicked()"), self.fillMaskFileEdit)
def onLayersChanged(self):
self.inSelector.setLayers( Utils.LayerRegistry.instance().getRasterLayers() )
self.maskSelector.setLayers( Utils.LayerRegistry.instance().getRasterLayers() )
def fillInputFileEdit(self):
lastUsedFilter = Utils.FileFilter.lastUsedRasterFilter()
inputFile = Utils.FileDialog.getOpenFileName(self, self.tr( "Select the input file for Polygonize" ), Utils.FileFilter.allRastersFilter(), lastUsedFilter )
if not inputFile:
return
Utils.FileFilter.setLastUsedRasterFilter(lastUsedFilter)
self.inSelector.setFilename(inputFile)
def fillOutputFileEdit(self):
lastUsedFilter = Utils.FileFilter.lastUsedVectorFilter()
outputFile, encoding = Utils.FileDialog.getSaveFileName(self, self.tr( "Select where to save the Polygonize output" ), Utils.FileFilter.allVectorsFilter(), lastUsedFilter, True)
if not outputFile:
return
Utils.FileFilter.setLastUsedVectorFilter(lastUsedFilter)
self.outputFormat = Utils.fillVectorOutputFormat( lastUsedFilter, outputFile )
self.outSelector.setFilename(outputFile)
self.lastEncoding = encoding
def fillMaskFileEdit(self):
lastUsedFilter = Utils.FileFilter.lastUsedRasterFilter()
maskFile = Utils.FileDialog.getOpenFileName(self, self.tr( "Select the input file for Polygonize" ), Utils.FileFilter.allRastersFilter(), lastUsedFilter )
if not maskFile():
return
Utils.FileFilter.setLastUsedRasterFilter(lastUsedFilter)
self.maskSelector.setFilename(maskFile)
def getArguments(self):
arguments = []
arguments.append( self.getInputFileName() )
outputFn = self.getOutputFileName()
maskFn = self.getMaskFileName()
if self.maskCheck.isChecked() and maskFn:
arguments.append( "-mask" )
arguments.append( maskFn )
if outputFn:
arguments.append( "-f" )
arguments.append( self.outputFormat )
arguments.append( outputFn )
if outputFn:
arguments.append( QFileInfo( outputFn ).baseName() )
if (self.fieldCheck.isChecked() and self.fieldEdit.text()):
arguments.append( self.fieldEdit.text() )
return arguments
def getOutputFileName(self):
return self.outSelector.filename()
def getInputFileName(self):
return self.inSelector.filename()
def getMaskFileName(self):
return self.maskSelector.filename()
def addLayerIntoCanvas(self, fileInfo):
vl = self.iface.addVectorLayer(fileInfo.filePath(), fileInfo.baseName(), "ogr")
if vl != None and vl.isValid():
if hasattr(self, 'lastEncoding'):
vl.setProviderEncoding(self.lastEncoding)
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