# -*- coding: utf-8 -*- #----------------------------------------------------------- # # fTools # Copyright (C) 2008-2011 Carson Farmer # EMAIL: carson.farmer (at) gmail.com # WEB : http://www.ftools.ca/fTools.html # # A collection of data management and analysis tools for vector data # #----------------------------------------------------------- # # licensed under the terms of GNU GPL 2 # # 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. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License along # with this program; if not, write to the Free Software Foundation, Inc., # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. # #--------------------------------------------------------------------- from PyQt4.QtCore import SIGNAL, Qt, QObject, QSettings, QByteArray, QThread, QVariant from PyQt4.QtGui import QDialog, QDialogButtonBox, QAbstractItemView, QApplication, QMessageBox, QHeaderView, QTableWidgetItem from qgis.core import QGis, QgsPoint, QgsFeature, QgsFeatureRequest, QgsGeometry, QgsFields, QgsField, QgsVectorFileWriter from qgis.gui import QgsVertexMarker from ui_frmVisual import Ui_Dialog import ftools_utils class MarkerErrorGeometry(): def __init__(self, mapCanvas): self.__canvas = mapCanvas self.__marker = None def __del__(self): self.reset() def __createMarker(self, point): self.__marker = QgsVertexMarker(self.__canvas) self.__marker.setCenter(point) self.__marker.setIconType(QgsVertexMarker.ICON_X) self.__marker.setPenWidth(3) def setGeom(self, p): if self.__marker is not None: self.reset() if self.__marker is None: self.__createMarker(p) else: self.__marker.setCenter(p) def reset(self): if self.__marker is not None: self.__canvas.scene().removeItem(self.__marker) del self.__marker self.__marker = None class ValidateDialog(QDialog, Ui_Dialog): def __init__(self, iface): QDialog.__init__(self, iface.mainWindow()) self.iface = iface self.setupUi(self) # self.setModal(False) # we want to be able to interact with the featuresmc.extent().width() # self.setWindowFlags( Qt.SubWindow ) # adjust user interface self.setWindowTitle(self.tr("Check geometry validity")) self.cmbField.setVisible(False) self.label.setVisible(False) self.useSelected.setVisible(True) self.label_2.setText(self.tr("Geometry errors")) self.label_4.setText(self.tr("Total encountered errors")) self.partProgressBar.setVisible(False) self.tblUnique.setSelectionMode(QAbstractItemView.SingleSelection) self.tblUnique.setSelectionBehavior(QAbstractItemView.SelectRows) # populate list of available layers myList = ftools_utils.getLayerNames([QGis.Point, QGis.Line, QGis.Polygon]) self.connect(self.tblUnique, SIGNAL("currentItemChanged(QTableWidgetItem*, QTableWidgetItem*)"), self.zoomToError) self.inShape.addItems(myList) self.buttonBox_2.setOrientation(Qt.Horizontal) self.cancel_close = self.buttonBox_2.button(QDialogButtonBox.Close) self.buttonOk = self.buttonBox_2.button(QDialogButtonBox.Ok) self.progressBar.setValue(0) self.storedScale = self.iface.mapCanvas().scale() # create marker for error self.marker = MarkerErrorGeometry(self.iface.mapCanvas()) settings = QSettings() self.restoreGeometry(settings.value("/fTools/ValidateDialog/geometry", QByteArray(), type=QByteArray)) QObject.connect(self.browseShpError, SIGNAL("clicked()"), self.outFile) QObject.connect(self.ckBoxShpError, SIGNAL("stateChanged( int )"), self.updateGui) self.updateGui() def closeEvent(self, e): settings = QSettings() settings.setValue("/fTools/ValidateDialog/geometry", self.saveGeometry()) QDialog.closeEvent(self, e) del self.marker def keyPressEvent(self, e): if (e.modifiers() == Qt.ControlModifier or e.modifiers() == Qt.MetaModifier ) and \ e.key() == Qt.Key_C: items = "" for row in range(self.tblUnique.rowCount()): items += self.tblUnique.item(row, 0).text() + "," + self.tblUnique.item(row, 1).text() + "\n" if items: clip_board = QApplication.clipboard() clip_board.setText(items) else: QDialog.keyPressEvent(self, e) def accept(self): if self.inShape.currentText() == "": QMessageBox.information(self, self.tr("Error!"), self.tr("Please specify input vector layer")) elif self.cmbField.isVisible() and self.cmbField.currentText() == "": QMessageBox.information(self, self.tr("Error!"), self.tr("Please specify input field")) elif self.ckBoxShpError.isChecked() and self.lineEditShpError.text() == "": QMessageBox.information(self, self.tr("Error!"), self.tr("Please specify output shapefile")) else: self.vlayer = ftools_utils.getVectorLayerByName(self.inShape.currentText()) self.validate(self.useSelected.checkState()) def updateGui(self): if self.ckBoxShpError.isChecked(): self.lineEditShpError.setEnabled(True) self.browseShpError.setEnabled(True) self.addToCanvasCheck.setEnabled(True) self.tblUnique.setEnabled(False) self.lstCount.setEnabled(False) self.label_2.setEnabled(False) self.label_4.setEnabled(False) self.label_5.setEnabled(False) else: self.lineEditShpError.setEnabled(False) self.browseShpError.setEnabled(False) self.addToCanvasCheck.setEnabled(False) self.tblUnique.setEnabled(True) self.lstCount.setEnabled(True) self.label_2.setEnabled(True) self.label_4.setEnabled(True) self.label_5.setEnabled(True) def outFile(self): self.lineEditShpError.clear() (self.shapefileName, self.encoding) = ftools_utils.saveDialog(self) if self.shapefileName is None or self.encoding is None: return self.lineEditShpError.setText(self.shapefileName) def zoomToError(self, curr, prev): if curr is None: return row = curr.row() # if we clicked in the first column, we want the second item = self.tblUnique.item(row, 1) mc = self.iface.mapCanvas() mc.zoomToPreviousExtent() e = item.data(Qt.UserRole) if isinstance(e, QgsPoint): e = mc.mapRenderer().layerToMapCoordinates(self.vlayer, e) self.marker.setGeom(e) rect = mc.extent() rect.scale(0.5, e) else: self.marker.reset() ft = QgsFeature() fid = int(self.tblUnique.item(row, 0).text()) if not self.vlayer.getFeatures(QgsFeatureRequest().setFilterFid(fid)).nextFeature(ft): return rect = mc.mapRenderer().layerExtentToOutputExtent(self.vlayer, ft.geometry().boundingBox()) rect.scale(1.05) # Set the extent to our new rectangle mc.setExtent(rect) # Refresh the map mc.refresh() def validate(self, mySelection): if not self.ckBoxShpError.isChecked(): self.tblUnique.clearContents() self.tblUnique.setRowCount(0) self.lstCount.clear() self.shapefileName = None self.encoding = None self.buttonOk.setEnabled(False) self.testThread = validateThread(self.iface.mainWindow(), self, self.vlayer, mySelection, self.shapefileName, self.encoding, self.ckBoxShpError.isChecked()) QObject.connect(self.testThread, SIGNAL("runFinished(PyQt_PyObject)"), self.runFinishedFromThread) QObject.connect(self.testThread, SIGNAL("runStatus(PyQt_PyObject)"), self.runStatusFromThread) QObject.connect(self.testThread, SIGNAL("runRange(PyQt_PyObject)"), self.runRangeFromThread) self.cancel_close.setText(self.tr("Cancel")) QObject.connect(self.cancel_close, SIGNAL("clicked()"), self.cancelThread) QApplication.setOverrideCursor(Qt.WaitCursor) self.testThread.start() return True def reject(self): # Remove Marker self.marker.reset() QDialog.reject(self) def cancelThread(self): self.testThread.stop() QApplication.restoreOverrideCursor() self.buttonOk.setEnabled(True) def runFinishedFromThread(self, success): self.testThread.stop() QApplication.restoreOverrideCursor() self.buttonOk.setEnabled(True) if success == "writeShape": extra = "" if self.addToCanvasCheck.isChecked(): addCanvasCheck = ftools_utils.addShapeToCanvas(unicode(self.shapefileName)) if not addCanvasCheck: QMessageBox.warning(self, self.tr("Geometry"), self.tr("Error loading output shapefile:\n%s") % (unicode(self.shapefileName))) else: QMessageBox.information(self, self.tr("Geometry"), self.tr("Created output shapefile:\n%s\n%s") % (unicode(self.shapefileName), extra)) else: self.tblUnique.setColumnCount(2) count = 0 for rec in success: if len(rec[1]) < 1: continue for err in rec[1]: # for each error we find self.tblUnique.insertRow(count) fidItem = QTableWidgetItem(unicode(rec[0])) self.tblUnique.setItem(count, 0, fidItem) message = err.what() errItem = QTableWidgetItem(message) if err.hasWhere(): # if there is a location associated with the error errItem.setData(Qt.UserRole, err.where()) self.tblUnique.setItem(count, 1, errItem) count += 1 self.tblUnique.setHorizontalHeaderLabels([self.tr("Feature"), self.tr("Error(s)")]) self.tblUnique.horizontalHeader().setResizeMode(0, QHeaderView.ResizeToContents) self.tblUnique.horizontalHeader().show() self.tblUnique.horizontalHeader().setResizeMode(1, QHeaderView.Stretch) self.tblUnique.resizeRowsToContents() self.lstCount.insert(unicode(count)) self.cancel_close.setText("Close") QObject.disconnect(self.cancel_close, SIGNAL("clicked()"), self.cancelThread) return True def runStatusFromThread(self, status): self.progressBar.setValue(status) def runRangeFromThread(self, range_vals): self.progressBar.setRange(range_vals[0], range_vals[1]) class validateThread(QThread): def __init__(self, parentThread, parentObject, vlayer, mySelection, myName, myEncoding, myNewShape): QThread.__init__(self, parentThread) self.parent = parentObject self.running = False self.vlayer = vlayer self.mySelection = mySelection self.myName = myName self.myEncoding = myEncoding self.writeShape = myNewShape def run(self): self.running = True success = self.check_geometry(self.vlayer) self.emit(SIGNAL("runFinished(PyQt_PyObject)"), success) def stop(self): self.running = False def check_geometry(self, vlayer): lstErrors = [] if self.mySelection: layer = vlayer.selectedFeatures() nFeat = len(layer) else: layer = [] ft = QgsFeature() fit = vlayer.getFeatures(QgsFeatureRequest().setSubsetOfAttributes([])) while fit.nextFeature(ft): layer.append(QgsFeature(ft)) nFeat = len(layer) nElement = 0 if nFeat > 0: self.emit(SIGNAL("runStatus(PyQt_PyObject)"), 0) self.emit(SIGNAL("runRange(PyQt_PyObject)"), (0, nFeat)) for feat in layer: if not self.running: return list() geom = QgsGeometry(feat.geometry()) # ger reference to geometry self.emit(SIGNAL("runStatus(PyQt_PyObject)"), nElement) nElement += 1 # Check Add error if not geom.isGeosEmpty(): lstErrors.append((feat.id(), list(geom.validateGeometry()))) self.emit(SIGNAL("runStatus(PyQt_PyObject)"), nFeat) if self.writeShape: fields = QgsFields() fields.append(QgsField("FEAT_ID", QVariant.Int)) fields.append(QgsField("ERROR", QVariant.String)) writer = QgsVectorFileWriter(self.myName, self.myEncoding, fields, QGis.WKBPoint, vlayer.crs()) for rec in lstErrors: if len(rec[1]) < 1: continue for err in rec[1]: fidItem = unicode(rec[0]) message = err.what() if err.hasWhere(): locErr = err.where() xP = locErr.x() yP = locErr.y() myPoint = QgsPoint(xP, yP) geometry = QgsGeometry().fromPoint(myPoint) ft = QgsFeature() ft.setGeometry(geometry) ft.setAttributes([fidItem, message]) writer.addFeature(ft) del writer return "writeShape" else: return lstErrors