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https://github.com/qgis/QGIS.git
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24ba0309ff
1) All fTools functions should now add all layers to dropdowns (including non-visible layers), 2) All fTools functions should now be non-modal 3) Several fTools functions have been spead up slightly 4) Where possible, internal (cpp) functions have be used to replace older Python functions 5) Defining projections now also considers .qpj files Fixes bugs #2502 and #2506, and possibly others? git-svn-id: http://svn.osgeo.org/qgis/trunk@13037 c8812cc2-4d05-0410-92ff-de0c093fc19c
120 lines
6.0 KiB
Python
Executable File
120 lines
6.0 KiB
Python
Executable File
# -*- 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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import ftools_utils
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from ui_frmReProject import Ui_Dialog
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class Dialog(QDialog, Ui_Dialog):
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def __init__(self, iface):
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QDialog.__init__(self)
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self.iface = iface
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self.setupUi(self)
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self.toolOut.setEnabled(False)
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self.toolOut.setVisible(False)
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self.outShape.setEnabled(False)
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self.outShape.setVisible(False)
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self.label_2.setVisible(False)
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self.label_2.setEnabled(False)
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self.setWindowTitle(self.tr("Define current projection"))
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QObject.connect(self.btnProjection, SIGNAL("clicked()"), self.outProjFile)
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QObject.connect(self.inShape, SIGNAL("currentIndexChanged(QString)"), self.updateProj1)
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QObject.connect(self.cmbLayer, SIGNAL("currentIndexChanged(QString)"), self.updateProj2)
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# populate layer list
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self.progressBar.setValue(0)
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mapCanvas = self.iface.mapCanvas()
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layers = ftools_utils.getLayerNames([QGis.Point, QGis.Line, QGis.Polygon])
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self.inShape.addItems(layers)
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self.cmbLayer.addItems(layers)
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def updateProj1(self, layerName):
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self.inRef.clear()
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tempLayer = ftools_utils.getVectorLayerByName(layerName)
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crs = tempLayer.dataProvider().crs().toProj4()
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self.inRef.insert(unicode(crs))
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def updateProj2(self, layerName):
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self.outRef.clear()
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tempLayer = ftools_utils.getVectorLayerByName(layerName)
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crs = tempLayer.dataProvider().crs().toProj4()
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self.outRef.insert(unicode(crs))
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def accept(self):
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if self.inShape.currentText() == "":
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QMessageBox.information(self, self.tr("Define current projection"), self.tr("No input shapefile specified"))
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elif self.txtProjection.text() == "" and self.rdoProjection.isChecked():
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QMessageBox.information(self, self.tr("Define current projection"), self.tr("Please specify spatial reference system"))
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elif self.cmbLayer.currentText() == "" and self.rdoLayer.isChecked():
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QMessageBox.information(self, self.tr("Define current projection"), self.tr("Please specify spatial reference system"))
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else:
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self.progressBar.setValue(5)
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inName = self.inShape.currentText()
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self.progressBar.setValue(10)
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vLayer = ftools_utils.getVectorLayerByName(inName)
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self.progressBar.setValue(30)
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if vLayer == "Error":
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QMessageBox.information(self, self.tr("Define current projection"), self.tr("Cannot define projection for PostGIS data...yet!"))
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else:
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srsDefine = QgsCoordinateReferenceSystem()
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if self.rdoProjection.isChecked():
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outProj = self.txtProjection.text()
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srsDefine.createFromProj4(outProj)
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else:
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destLayer = self.getVectorLayerByName(self.cmbLayer.currentText())
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srsDefine = destLayer.srs()
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if srsDefine == vLayer.srs():
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QMessageBox.information(self, self.tr("Define current projection"), self.tr("Identical output spatial reference system chosen"))
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else:
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provider = vLayer.dataProvider()
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self.progressBar.setValue(35)
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inPath = provider.dataSourceUri()
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inPath = inPath.remove( QRegExp( "\|.*" ) )
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self.progressBar.setValue(40)
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if inPath.endsWith(".shp"):
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inPath = inPath.left(inPath.length() - 4)
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self.progressBar.setValue(55)
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if not srsDefine.isValid():
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QMessageBox.information(self, self.tr("Define current projection"), self.tr("Output spatial reference system is not valid"))
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else:
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self.progressBar.setValue(60)
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outputWkt = srsDefine.toWkt()
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self.progressBar.setValue(65)
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outputFile = QFile( inPath + ".prj" )
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outputFile.open( QIODevice.WriteOnly | QIODevice.Text )
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outputPrj = QTextStream( outputFile )
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outputPrj << outputWkt
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outputPrj.flush()
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outputFile.close()
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self.progressBar.setValue(70)
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checkFile = QFile( inPath + ".qpj" )
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if checkFile.exists():
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checkFile.open( QIODevice.WriteOnly | QIODevice.Text )
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outputPrj = QTextStream( checkFile )
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outputPrj << outputWkt
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outputPrj.flush()
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checkFile.close()
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self.progressBar.setValue(95)
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vLayer.setCrs(srsDefine)
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self.progressBar.setValue(100)
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QMessageBox.information(self, self.tr("Define current projection"), self.tr("Defined Projection For:\n%1.shp").arg( inPath ) )
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self.progressBar.setValue(0)
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def outProjFile(self):
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format = QString( "<h2>%1</h2>%2 <br/> %3" )
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header = QString( "Define layer CRS:" )
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sentence1 = self.tr( "Please select the projection system that defines the current layer." )
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sentence2 = self.tr( "Layer CRS information will be updated to the selected CRS." )
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self.projSelect = QgsGenericProjectionSelector(self, Qt.Widget)
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self.projSelect.setMessage( format.arg( header ).arg( sentence1 ).arg( sentence2 ))
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if self.projSelect.exec_():
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projString = self.projSelect.selectedProj4String()
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if projString == "":
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QMessageBox.information(self, self.tr("Export to new projection"), self.tr("No Valid CRS selected"))
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return
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else:
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self.txtProjection.clear()
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self.txtProjection.insert(projString)
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else:
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return |