# -*- coding: utf-8 -*-99 """@package OsmFeatureDW This module is descendant of "OSM Feature" dockable widget and makes user able to view and edit information on selected OSM feature. OsmFeatureDW module shows details of selected feature - its basic info, tags and relations. It provides methods for editing features' tags so that user can edit them directly on the widget. There are also some identify and edit buttons on "OsmFeatureDW" - this modul implements all the methods that are called after clicking on these buttons. Such methods creates (and set) map tool that coresponds to specified button. """ from PyQt4.QtCore import * from PyQt4.QtGui import * from qgis.core import * from qgis.gui import * from ui_OsmFeatureDW import Ui_OsmFeatureDW from OsmAddRelationDlg import OsmAddRelationDlg import OsmTags # include all available osm map tools from map_tools.OsmCreatePointMT import OsmCreatePointMT from map_tools.OsmCreateLineMT import OsmCreateLineMT from map_tools.OsmCreatePolygonMT import OsmCreatePolygonMT from map_tools.OsmMoveMT import OsmMoveMT from map_tools.OsmIdentifyMT import OsmIdentifyMT import unicodedata class OsmFeatureDW(QDockWidget, Ui_OsmFeatureDW, object): """This class shows details of selected feature - its basic info, tags and relations. It provides methods for editing features' tags so that user can edit them directly on the widget. There are also some identify and edit buttons on "OsmFeatureDW" - this modul implements all the methods that are called after clicking them. Such methods creates (and set) map tool that coresponds to specified button. """ def __init__(self, plugin): """The constructor.""" QDockWidget.__init__(self, None) self.setupUi(self) self.setAllowedAreas(Qt.LeftDockWidgetArea | Qt.RightDockWidgetArea) self.plugin=plugin self.mapTool=None self.__dlgAddRel=None # set icons for tool buttons (identify,move,createPoint,createLine,createPolygon) self.identifyButton.setIcon(QIcon(":/plugins/osm_plugin/images/osm_identify.png")) self.moveButton.setIcon(QIcon(":/plugins/osm_plugin/images/osm_move.png")) self.createPointButton.setIcon(QIcon(":/plugins/osm_plugin/images/osm_createPoint.png")) self.createLineButton.setIcon(QIcon(":/plugins/osm_plugin/images/osm_createLine.png")) self.createPolygonButton.setIcon(QIcon(":/plugins/osm_plugin/images/osm_createPolygon.png")) self.createRelationButton.setIcon(QIcon(":/plugins/osm_plugin/images/osm_createRelation.png")) self.removeButton.setIcon(QIcon(":/plugins/osm_plugin/images/osm_removeFeat.png")) self.deleteTagsButton.setIcon(QIcon(":/plugins/osm_plugin/images/osm_removeTag.png")) self.undoButton.setIcon(QIcon(":/plugins/osm_plugin/images/osm_undo.png")) self.redoButton.setIcon(QIcon(":/plugins/osm_plugin/images/osm_redo.png")) self.addRelationButton.setIcon(QIcon(":/plugins/osm_plugin/images/osm_addRelation.png")) self.removeRelationButton.setIcon(QIcon(":/plugins/osm_plugin/images/osm_removeRelation.png")) self.editRelationButton.setIcon(QIcon(":/plugins/osm_plugin/images/osm_editRelation.png")) self.urDetailsButton.setIcon(QIcon(":/plugins/osm_plugin/images/osm_urDetails.png")) # initializing group of edit buttons self.toolButtons=QButtonGroup(self) self.dummyButton.setVisible(False) self.toolButtons.addButton(self.dummyButton) self.toolButtons.addButton(self.identifyButton) self.toolButtons.addButton(self.moveButton) self.toolButtons.addButton(self.createPointButton) self.toolButtons.addButton(self.createLineButton) self.toolButtons.addButton(self.createPolygonButton) self.toolButtons.setExclusive(True) # initializing table of feature tags self.tagTable.setColumnCount(2) self.tagTable.setHorizontalHeaderItem(0,QTableWidgetItem("Key")) self.tagTable.setHorizontalHeaderItem(1,QTableWidgetItem("Value")) self.tagTable.setSelectionMode(QAbstractItemView.ExtendedSelection) self.tagTable.setSelectionBehavior(QAbstractItemView.SelectRows) self.newTagLabel="" self.relTagsTree.setSelectionMode(QAbstractItemView.NoSelection) # initializing rubberbands/vertexmarkers; getting qgis settings of line width and color for rubberbands settings=QSettings() qgsLineWidth=2 # use fixed width qgsLineRed=settings.value( "/qgis/digitizing/line_color_red", QVariant(255) ).toInt() qgsLineGreen=settings.value( "/qgis/digitizing/line_color_green", QVariant(0) ).toInt() qgsLineBlue=settings.value( "/qgis/digitizing/line_color_blue", QVariant(0) ).toInt() self.rubBandPol=QgsRubberBand(plugin.canvas,True) self.rubBandPol.setColor(QColor(qgsLineRed[0],qgsLineGreen[0],qgsLineBlue[0])) self.rubBandPol.setWidth(qgsLineWidth) self.rubBand=QgsRubberBand(plugin.canvas,False) self.rubBand.setColor(QColor(qgsLineRed[0],qgsLineGreen[0],qgsLineBlue[0])) self.rubBand.setWidth(qgsLineWidth) self.verMarker=QgsVertexMarker(plugin.canvas) self.verMarker.setIconType(2) self.verMarker.setIconSize(13) self.verMarker.setColor(QColor(qgsLineRed[0],qgsLineGreen[0],qgsLineBlue[0])) self.verMarker.setPenWidth(qgsLineWidth) self.verMarkers=[] self.relRubBandPol=QgsRubberBand(plugin.canvas,True) self.relRubBandPol.setColor(QColor(qgsLineRed[0],50,50)) self.relRubBandPol.setWidth(qgsLineWidth+4) self.relRubBand=QgsRubberBand(plugin.canvas,False) self.relRubBand.setColor(QColor(qgsLineRed[0],50,50)) self.relRubBand.setWidth(qgsLineWidth+4) self.relVerMarker=QgsVertexMarker(plugin.canvas) self.relVerMarker.setIconType(2) self.relVerMarker.setIconSize(13) self.relVerMarker.setColor(QColor(qgsLineRed[0],50,50)) self.relVerMarker.setPenWidth(qgsLineWidth) # initializing inner variables self.activeEditButton=self.dummyButton self.__tagsLoaded=False self.__relTagsLoaded=False self.feature=None self.featureType=None self.featRels=[] self.featRelTags=[] self.featRelMembers=[] # clear all widget items self.clear() self.__connectWidgetSignals() self.removeButton.setEnabled(False) self.createRelationButton.setCheckable(False) # set current tab to "Properties" self.propRelBox.setCurrentIndex(0) self.plugin.canvas.setFocus(Qt.OtherFocusReason) # init coordinate transform self.projectionChanged() renderer=self.plugin.canvas.mapRenderer() self.connect(renderer, SIGNAL("hasCrsTransformEnabled(bool)"), self.projectionChanged) self.connect(renderer, SIGNAL("destinationSrsChanged()"), self.projectionChanged) def setContentEnabled(self,flag): self.featInfoBox.setEnabled(flag) self.propRelBox.setEnabled(flag) self.identifyButton.setEnabled(flag) self.moveButton.setEnabled(flag) self.createPointButton.setEnabled(flag) self.createLineButton.setEnabled(flag) self.createPolygonButton.setEnabled(flag) self.createRelationButton.setEnabled(flag) if flag: if self.plugin.undoredo.undoCounter>0: self.undoButton.setEnabled(True) if self.plugin.undoredo.redoCounter>0: self.redoButton.setEnabled(True) else: self.undoButton.setEnabled(False) self.redoButton.setEnabled(False) self.urDetailsButton.setEnabled(flag) def projectionChanged(self): """Function is connected to signals from QgsMapRenderer. It updates coordinate transforms. """ renderer = self.plugin.canvas.mapRenderer() if renderer.hasCrsTransformEnabled(): self.coordXform = QgsCoordinateTransform(renderer.destinationSrs(), QgsCoordinateReferenceSystem(4326)) else: self.coordXform = None def canvasToOsmCoords(self, point): """Performs conversion from canvas to map coordinates. @param point canvas coordinates to convert """ point = self.plugin.canvas.getCoordinateTransform().toMapCoordinates( point ) # optional conversion from map to layer coordinates if self.coordXform is not None: point = self.coordXform.transform( point ) return point def __connectWidgetSignals(self): """Function connects all necessary signals to appropriate slots. """ # signals emitted on clicking with tag and member tables QObject.connect(self.identifyButton, SIGNAL("clicked()"), self.__startIdentifyingFeature) QObject.connect(self.moveButton, SIGNAL("clicked()"), self.__startMovingFeature) QObject.connect(self.createPointButton, SIGNAL("clicked()"), self.__startPointCreation) QObject.connect(self.createLineButton, SIGNAL("clicked()"), self.__startLineCreation) QObject.connect(self.createPolygonButton, SIGNAL("clicked()"), self.__startPolygonCreation) QObject.connect(self.createRelationButton, SIGNAL("clicked()"), self.__createRelation) QObject.connect(self.removeButton, SIGNAL("clicked()"), self.removeFeature) QObject.connect(self.relListWidget, SIGNAL("currentRowChanged(int)"), self.loadRelationStuff) QObject.connect(self.relMembersList, SIGNAL("currentRowChanged(int)"), self.__showRelMemberOnMap) QObject.connect(self.addRelationButton, SIGNAL("clicked()"), self.createRelationWithMember) QObject.connect(self.editRelationButton, SIGNAL("clicked()"), self.editSelectedRelation) QObject.connect(self.removeRelationButton, SIGNAL("clicked()"), self.removeSelectedRelation) QObject.connect(self.deleteTagsButton, SIGNAL("clicked()"), self.removeSelectedTags) QObject.connect(self.tagTable, SIGNAL("cellChanged(int,int)"), self.__onTagsCellChanged) QObject.connect(self.tagTable, SIGNAL("currentCellChanged(int,int,int,int)"), self.__onCurrentCellChanged) QObject.connect(self.tagTable, SIGNAL("itemDoubleClicked(QTableWidgetItem*)"), self.__onTagsItemDoubleClicked) QObject.connect(self.undoButton, SIGNAL("clicked()"), self.__undo) QObject.connect(self.redoButton, SIGNAL("clicked()"), self.__redo) QObject.connect(self.urDetailsButton, SIGNAL("clicked()"), self.__urDetailsChecked) def databaseChanged(self,dbKey): """This function is called when current OSM database of plugin changes. The OsmFeatureDW performs necessary actions and tells current map tool about the change. @param dbKey key (name) of new current database """ if self.__dlgAddRel and dbKey: self.__dlgAddRel.close() self.__dlgAddRel=None self.setContentEnabled(True) self.plugin.undoredo.setContentEnabled(True) QMessageBox.information(self, self.tr("OSM Plugin") ,self.tr("The 'Create OSM Relation' dialog was closed automatically because current OSM database was changed.")) # clear the whole OSM Feature dockwidget as well as all related rubberbands and vertex markers self.clear() # if some mapTool is currently set tell it about database changing if self.mapTool: self.mapTool.databaseChanged(dbKey) self.activeEditButton=self.dummyButton # and if new database is None, disable the whole dockwidget if not dbKey: self.setContentEnabled(False) if self.mapTool: self.plugin.canvas.unsetMapTool(self.mapTool) self.mapTool=None self.plugin.canvas.setCursor(QCursor(Qt.ArrowCursor)) return self.setContentEnabled(True) def clear(self): """Function clears all widget items. It resets rubberbands, vertexmarkers, re-initializes OsmFeatureDW inner structures. """ # clear common feature infos self.typeIdLabel.setText("") self.userLabel.setText("") self.createdLabel.setText("") # clear table with information about feature's tags self.tagTable.clear() self.tagTable.setEnabled(False) self.tagTable.setRowCount(0) self.tagTable.setColumnCount(0) # clear table with info about feature's relations self.relListWidget.clear() self.relTagsTree.clear() self.relMembersList.clear() self.relTagsTree.setColumnCount(0) self.relListWidget.setEnabled(False) self.relTagsTree.setEnabled(False) self.relMembersList.setEnabled(False) # disable widget buttons self.deleteTagsButton.setEnabled(False) self.editRelationButton.setEnabled(False) self.removeRelationButton.setEnabled(False) self.addRelationButton.setEnabled(False) self.removeButton.setEnabled(False) # remove previous rubber bands self.rubBand.reset(False) self.rubBandPol.reset(True) self.verMarker.setCenter(QgsPoint(-1000,-1000)) self.verMarker.hide() self.__removeMemberMarkers() self.verMarkers=[] self.relRubBand.reset(False) self.relRubBandPol.reset(True) self.relVerMarker.setCenter(QgsPoint(-1000,-1000)) self.relVerMarker.hide() # clear member variables self.__tagsLoaded=False self.__relTagsLoaded=False self.feature=None self.featureType=None self.featRels=[] self.featRelTags=[] self.featRelMembers=[] def __createRelation(self): """Function calls relation creating process. Creation is started by displaying appropriate dialog. """ # clear dockwidget self.clear() self.plugin.iface.mainWindow().statusBar().showMessage("") self.plugin.canvas.unsetMapTool(self.mapTool) del self.mapTool self.mapTool=None self.plugin.canvas.setCursor(QCursor(Qt.ArrowCursor)) self.activeEditButton=self.dummyButton self.setContentEnabled(False) self.plugin.undoredo.setContentEnabled(False) self.plugin.toolBar.setEnabled(False) # OsmAddRelationDlg parameters: plugin, newRelationFirstMember, relationToEdit self.__dlgAddRel=OsmAddRelationDlg(self.plugin, None, None) self.__dlgAddRel.setWindowModality(Qt.WindowModal) self.__dlgAddRel.exec_() self.__dlgAddRel=None self.setContentEnabled(True) self.plugin.undoredo.setContentEnabled(True) self.plugin.toolBar.setEnabled(True) def createRelationWithMember(self): """Function calls relation creating process. Creation is started by displaying appropriate dialog. Function pre-fills dialog with information on currently loaded feature. """ self.__dlgAddRel=OsmAddRelationDlg(self.plugin, QString(self.featureType+" %1").arg(self.feature.id()), None) # clear dockwidget self.clear() self.plugin.iface.mainWindow().statusBar().showMessage("") self.plugin.canvas.unsetMapTool(self.mapTool) del self.mapTool self.mapTool=None self.plugin.canvas.setCursor(QCursor(Qt.ArrowCursor)) self.activeEditButton=self.dummyButton self.setContentEnabled(False) self.plugin.undoredo.setContentEnabled(False) self.plugin.toolBar.setEnabled(False) self.__dlgAddRel.setWindowModality(Qt.WindowModal) self.__dlgAddRel.exec_() self.__dlgAddRel=None self.setContentEnabled(True) self.plugin.undoredo.setContentEnabled(True) self.plugin.toolBar.setEnabled(True) def editSelectedRelation(self): """Function calls editing of a relation. Editing is started by displaying appropriate dialog. Relation identifier is not passed to this function. Function has to find it out from current row of appropriate list widget. """ # show modal dialog "Edit relation" if not self.feature: QMessageBox.information(self, self.tr("OSM Feature Dock Widget"), self.tr("Choose OSM feature first.")) return item=self.relListWidget.item(self.relListWidget.currentRow()) if not item: QMessageBox.information(self, self.tr("OSM Feature Dock Widget"), self.tr("Choose relation for editing first.")) return relId=self.featRels[self.relListWidget.currentRow()] self.setContentEnabled(False) self.plugin.undoredo.setContentEnabled(False) self.plugin.toolBar.setEnabled(False) self.__dlgAddRel=OsmAddRelationDlg(self.plugin, None, relId) self.__dlgAddRel.setWindowModality(Qt.WindowModal) self.__dlgAddRel.exec_() self.__dlgAddRel=None self.setContentEnabled(True) self.plugin.undoredo.setContentEnabled(True) self.plugin.toolBar.setEnabled(True) def __onTagsCellChanged(self,row,column): """Function is called after cellChanged(int,int) signal is emitted on table of all features' relations. It means that user is changed key or value of some existing tag. @param row index of row in table of tags @param column index of column in table of tags """ if not self.__tagsLoaded: # this signal was emitted during table initialization, # but we are interested in user actions only return if row0: valCombo=QComboBox() valCombo.setEditable(True) valCombo.addItems(tagValues) currentComboText=self.tagTable.item(item.row(),0).text() ix=valCombo.findText(currentComboText) valCombo.setCurrentIndex(ix) if ix==-1: valCombo.setEditText(currentComboText) self.tagTable.setCellWidget(item.row(),0,valCombo) QObject.connect(valCombo, SIGNAL("currentIndexChanged(const QString &)"), self.__onTagKeySelectionChanged) return key=str(self.tagTable.item(item.row(),0).text()) tagValues=OsmTags.suitableTagValues(self.featureType,key) tagValues.sort() if len(tagValues)>0: valCombo=QComboBox() valCombo.setEditable(True) valCombo.addItems(tagValues) currentComboText=self.tagTable.item(item.row(),1).text() ix=valCombo.findText(currentComboText) valCombo.setCurrentIndex(ix) if ix==-1: valCombo.setEditText(currentComboText) self.tagTable.setCellWidget(item.row(),1,valCombo) QObject.connect(valCombo, SIGNAL("currentIndexChanged(const QString &)"), self.__onTagValueSelectionChanged) def __onCurrentCellChanged(self,curRow,curCol,prevRow,prevCol): """Function is called after currentCellChanged(...) signal is emitted on table of feature tags. @param curRow current row index to tags table @param curCol current column index to tags table @param prevRow previous row index to tags table @param prevCol previous column index to tags table """ cellWidget=self.tagTable.cellWidget(prevRow,prevCol) if cellWidget==None: return self.tagTable.removeCellWidget(prevRow,prevCol) def __onTagKeySelectionChanged(self,key): """Function is called after currentIndexChanged(...) signal is emitted on combobox in 1st column of tags table. @param key key selected in combobox """ row=self.tagTable.currentRow() col=self.tagTable.currentColumn() self.tagTable.item(row,col).setText(key) self.tagTable.removeCellWidget(row,col) def __onTagValueSelectionChanged(self,value): """Function is called after currentIndexChanged(...) signal is emitted on combobox in 2nd column of tags table. @param value value selected in combobox """ row=self.tagTable.currentRow() col=self.tagTable.currentColumn() self.tagTable.item(row,col).setText(value) self.tagTable.removeCellWidget(row,col) def __startIdentifyingFeature(self): """Function prepares feature identification. The appropriate map tool (OsmIdentifyMT) is set to map canvas. """ if self.activeEditButton==self.identifyButton: return self.plugin.canvas.unsetMapTool(self.plugin.canvas.mapTool()) # clear dockwidget self.clear() self.plugin.iface.mainWindow().statusBar().showMessage("") self.mapTool=OsmIdentifyMT(self.plugin.canvas, self, self.plugin.dbm) self.plugin.canvas.setMapTool(self.mapTool) self.plugin.canvas.setCursor(QCursor(Qt.ArrowCursor)) self.activeEditButton=self.identifyButton self.plugin.canvas.setFocus(Qt.OtherFocusReason) def __startMovingFeature(self): """Function prepares feature moving. The appropriate map tool (OsmMoveMT) is set to map canvas. """ if self.activeEditButton==self.moveButton: return # clear dockwidget self.clear() self.plugin.iface.mainWindow().statusBar().showMessage("Snapping ON. Hold Ctrl to disable it.") self.mapTool=OsmMoveMT(self.plugin) self.plugin.canvas.setMapTool(self.mapTool) self.plugin.canvas.setCursor(QCursor(Qt.CrossCursor)) self.activeEditButton=self.moveButton self.plugin.canvas.setFocus(Qt.OtherFocusReason) def __startPointCreation(self): """Function prepares point creating operation. The appropriate map tool (OsmCreatePointMT) is set to map canvas. """ if self.activeEditButton==self.createPointButton: return self.plugin.iface.mainWindow().statusBar().showMessage("Snapping ON. Hold Ctrl to disable it.") self.mapTool=OsmCreatePointMT(self.plugin) self.plugin.canvas.setMapTool(self.mapTool) self.plugin.canvas.setCursor(QCursor(Qt.ArrowCursor)) self.activeEditButton=self.createPointButton self.plugin.canvas.setFocus(Qt.OtherFocusReason) def __startLineCreation(self): """Function prepares line creating operation. The appropriate map tool (OsmCreateLineMT) is set to map canvas. """ if self.activeEditButton==self.createLineButton: return self.plugin.iface.mainWindow().statusBar().showMessage("Snapping ON. Hold Ctrl to disable it.") self.mapTool=OsmCreateLineMT(self.plugin) self.plugin.canvas.setMapTool(self.mapTool) self.plugin.canvas.setCursor(QCursor(Qt.ArrowCursor)) self.activeEditButton=self.createLineButton self.plugin.canvas.setFocus(Qt.OtherFocusReason) def __startPolygonCreation(self): """Function prepares polygon creating operation. The appropriate map tool (OsmCreatePolygonMT) is set to map canvas. """ if self.activeEditButton==self.createPolygonButton: return self.plugin.iface.mainWindow().statusBar().showMessage("Snapping ON. Hold Ctrl to disable it.") self.mapTool=OsmCreatePolygonMT(self.plugin) self.plugin.canvas.setMapTool(self.mapTool) self.plugin.canvas.setCursor(QCursor(Qt.ArrowCursor)) self.activeEditButton=self.createPolygonButton self.plugin.canvas.setFocus(Qt.OtherFocusReason) def removeFeature(self): """Function completely removes feature that is currently loaded on "OSM Feature" widget. """ self.removeButton.setDown(False) self.removeButton.setChecked(False) self.plugin.iface.mainWindow().statusBar().showMessage("") # remove object that was identified by "identify tool" featId=self.feature.id() featType=self.featureType affected=[] if featType=='Point': self.plugin.undoredo.startAction("Remove point.") affected=self.plugin.dbm.removePoint(featId) elif featType=='Line': self.plugin.undoredo.startAction("Remove line.") affected=self.plugin.dbm.removeLine(featId,True) # todo: False when Ctrl pressed elif featType=='Polygon': self.plugin.undoredo.startAction("Remove polygon.") affected=self.plugin.dbm.removePolygon(featId,True) # todo: False when Ctrl pressed elif featType=='Relation': self.plugin.undoredo.startAction("Remove relation.") self.plugin.dbm.removeRelation(featId) else: return # strange situation self.plugin.undoredo.stopAction(affected) self.plugin.dbm.recacheAffectedNow(affected) # refresh map canvas so that changes take effect self.plugin.canvas.refresh() # clear dockwidget self.clear() self.plugin.iface.mainWindow().statusBar().showMessage("") self.plugin.canvas.unsetMapTool(self.mapTool) del self.mapTool self.mapTool=OsmIdentifyMT(self.plugin.canvas, self, self.plugin.dbm) self.plugin.canvas.setMapTool(self.mapTool) self.plugin.canvas.setCursor(QCursor(Qt.ArrowCursor)) self.plugin.canvas.setFocus(Qt.OtherFocusReason) self.activeEditButton=self.identifyButton self.activeEditButton.setChecked(True) def removeSelectedTags(self): """Function completely removes all tags that are currently selected in the appropriate list of the "OSM Feature" widget. More than one tag can be selected using Ctrl and clicking. """ # remove selected tags (rows) selectedItems=self.tagTable.selectedItems() selectedRowsIndexes=[] lastRowIndex=self.tagTable.rowCount()-1 self.tagTable.setCurrentCell(lastRowIndex,0) for i in selectedItems: if i.column()==0 and not i.row()==lastRowIndex: selectedRowsIndexes.append(i.row()) self.plugin.undoredo.startAction("Remove tags.") selectedRowsIndexes.sort() selectedRowsIndexes.reverse() for ix in selectedRowsIndexes: key=self.tagTable.item(ix,0).text() # updating feature status (from Normal to Updated) if self.featureType=='Point': self.plugin.dbm.changePointStatus(self.feature.id(),'N','U') elif self.featureType=='Line': self.plugin.dbm.changeLineStatus(self.feature.id(),'N','U') elif self.featureType=='Polygon': self.plugin.dbm.changePolygonStatus(self.feature.id(),'N','U') elif self.featureType=='Relation': self.plugin.dbm.changeRelationStatus(self.feature.id(),'N','U') # perform tag removing self.plugin.dbm.removeTag(self.feature.id(),self.featureType,key.toAscii().data()) self.tagTable.removeRow(ix) # make this action permanent self.plugin.dbm.commit() affected=[(self.feature.id(),self.featureType)] self.plugin.undoredo.stopAction(affected) self.plugin.dbm.recacheAffectedNow(affected) # refresh map canvas so that changes take effect self.plugin.canvas.refresh() def removeSelectedRelation(self): """Function completely removes all relations that are selected in the appropriate list of the "OSM Feature" widget. More than one relation can be selected using Ctrl and clicking. """ # find out id of relation which is selected item=self.relListWidget.item(self.relListWidget.currentRow()) if not item or not self.plugin.dbm.currentKey: return relId=self.featRels[self.relListWidget.currentRow()] self.plugin.undoredo.startAction("Remove relation.") self.plugin.dbm.removeRelation(relId) self.plugin.dbm.commit() self.plugin.undoredo.stopAction() # reload list of feature's relations self.__loadFeatureRelations(self.feature.id(),self.featureType) def __showRelMemberOnMap(self,ixRow): """Functions marks relation member on the map. Marking is realized with simple rubberBand (in case of line/polygon) or vertexMarker (for point). Relation member is given by its index to the list of all members of currently loaded relation. @param ixRow index to the list of all relations on mentioned widget """ # move rubberband to selected feature self.relRubBand.reset(False) self.relRubBandPol.reset(True) self.relVerMarker.hide() if ixRow==-1 or not self.plugin.dbm.currentKey: return mem=self.featRelMembers[ixRow] self.showFeatureOnMap(mem[0],mem[1]) # id & type def loadRelationStuff(self,ixRow): """Functions loads information on specified relation into "OSM Feature" widget. Relation is given by its index to the list of all relations on mentioned widget. Relation "stuff" means its basic info, tags and members. @param ixRow index to the list of all relations on mentioned widget """ if ixRow==-1 or not self.plugin.dbm.currentKey: return relId=self.featRels[ixRow] # show all tags connected to selected relation self.__loadRelationTags(relId) # show all relation members on osm dock widget self.__loadRelationMembers(relId) # enable list of members and buttons for relation removing and editing self.relMembersList.setEnabled(True) self.editRelationButton.setEnabled(True) self.removeRelationButton.setEnabled(True) def __loadRelationMembers(self,relId): """Functions loads the list of members of specified relation. Relation is given by its identifier. Loading is realized into the appropriate QListWidget of "OSM Feature" dockable widget. Resulting list contains info on member's identifier, type and its role in specified relation. @param relId identifier of relation """ self.relMembersList.clear() # ask database manager for all relation members self.featRelMembers=self.plugin.dbm.getRelationMembers(relId) # printing members for i in range(0,len(self.featRelMembers)): memId=self.featRelMembers[i][0] memType=self.featRelMembers[i][1] memRole=self.featRelMembers[i][2] listRow=QString("(%1) - %2").arg(memId).arg(memType) if memRole and memRole<>"": listRow=listRow.append(QString(", role:%3").arg(memRole)) self.relMembersList.addItem(listRow) def __loadRelationTags(self,relId): """Functions loads the list of tags of specified relation. Relation is given by its identifier. Loading is realized into the appropriate QTreeWidget of "OSM Feature" dockable widget. Resulting tags table has two columns "Key","Value" for easy representing of tag pairs. @param relId identifier of relation """ self.relTagsTree.clear() self.__relTagsLoaded=False # ask database manager for all relation tags self.featRelTags=self.plugin.dbm.getFeatureTags(relId,"Relation") self.relTagsTree.setColumnCount(2) self.relTagsTree.setHeaderLabels(["Key","Value"]) for i in range(0,len(self.featRelTags)): self.relTagsTree.addTopLevelItem(QTreeWidgetItem([self.featRelTags[i][0],self.featRelTags[i][1]])) self.__relTagsLoaded=True def __loadFeatureInformation(self,featId,featType): """Functions shows up the basic information on feature. Feature is given by its identifier and its type. Info is loaded to appropriate place of the "OSM Feature" widget. Basic info consists (mainly) of feature's identifier, type, owner and timestamp. @param featId identifier of feature to load @param featType type of feature to load - one of 'Point','Line','Polygon' """ # asking OsmDatabaseManager for missing information featUser=self.plugin.dbm.getFeatureOwner(featId,featType) featCreated=self.plugin.dbm.getFeatureCreated(featId,featType) # returned as string # timestamp example: "2008-02-18T15:34:14Z" self.typeIdLabel.setText("") self.userLabel.setText("") self.createdLabel.setText("") # put non-tags feature information on dock widget if featType: self.typeIdLabel.setText(QString("%1 %2").arg(featType).arg(str(featId))) if featUser: self.userLabel.setText(QString("%1").arg(featUser)) if featCreated: # format timestamp DT_format_osm=Qt.ISODate # "yyyy-MM-ddThh:mm:ssZ" DT_format_plugin="yy/MM/dd - h:mm" self.createdLabel.setText(QDateTime.fromString(featCreated,DT_format_osm).toString(DT_format_plugin)) def __loadFeatureTags(self,featId,featType): """Functions loads the list of tags of specified feature. Feature is given by its identifier and its type. Loading is realized into the appropriate QTableWidget of "OSM Feature" dockable widget. Resulting tags table has two columns "Key","Value" for easy representing of tag pairs. @param featId identifier of feature to load @param featType type of feature to load - one of 'Point','Line','Polygon' """ # clear table with information about feature's tags self.tagTable.clear() # fill tableWidget with tags of selected feature tableData=self.plugin.dbm.getFeatureTags(featId,featType) rowCount=len(tableData) self.__tagsLoaded=False self.tagTable.setRowCount(rowCount+1) self.tagTable.setColumnCount(2) self.tagTable.setHorizontalHeaderItem(0,QTableWidgetItem("Key")) self.tagTable.setHorizontalHeaderItem(1,QTableWidgetItem("Value")) for i in range(0,rowCount): self.tagTable.setItem(i,0,QTableWidgetItem(QString.fromUtf8(tableData[i][0]))) self.tagTable.setItem(i,1,QTableWidgetItem(QString.fromUtf8(tableData[i][1]))) self.tagTable.item(i,0).setFlags(Qt.ItemIsSelectable | Qt.ItemIsEnabled) self.tagTable.item(i,1).setFlags(Qt.ItemIsSelectable | Qt.ItemIsEnabled | Qt.ItemIsEditable) self.tagTable.setItem(rowCount,0,QTableWidgetItem(self.newTagLabel)) self.tagTable.setItem(rowCount,1,QTableWidgetItem("")) self.tagTable.item(rowCount,0).setFlags(Qt.ItemIsEnabled | Qt.ItemIsEditable) self.tagTable.item(rowCount,1).setFlags(Qt.ItemIsEnabled) self.__tagsLoaded=True # enable tags table for editing self.tagTable.setEnabled(True) self.deleteTagsButton.setEnabled(True) def __loadFeatureRelations(self,featId,featType): """Functions loads the list of relations of specified feature. Feature is given by its identifier and its type. Loading is realized into the appropriate QListWidget of "OSM Feature" dockable widget. If no relation exists for specified feature, listWidget is filled with the only row with text: "". @param featId identifier of feature to load @param featType type of feature to load - one of 'Point','Line','Polygon' """ self.relTagsTree.setColumnCount(0) self.relMembersList.setEnabled(False) # disable widget buttons self.editRelationButton.setEnabled(False) self.removeRelationButton.setEnabled(False) # clear all tables connected to relations self.relListWidget.clear() self.relTagsTree.clear() self.relMembersList.clear() # load relations for selected feature self.featRels=self.plugin.dbm.getFeatureRelations(featId,featType) for i in range(0,len(self.featRels)): self.relListWidget.addItem(self.__getRelationInfo(self.featRels[i])) if len(self.featRels)==0: self.relListWidget.addItem("") self.addRelationButton.setEnabled(True) return # enable relation tables and button for relation addition self.addRelationButton.setEnabled(True) self.relListWidget.setEnabled(True) self.relTagsTree.setEnabled(True) def reloadFeatureRelations(self): """Functions reloads the list of relations for currently loaded feature. Loading is realized into the appropriate QListWidget of "OSM Feature" dockable widget. If no relation exists for specified feature, listWidget is filled with the only row with text: "". """ self.relTagsTree.setColumnCount(0) self.relMembersList.setEnabled(False) # disable widget buttons self.editRelationButton.setEnabled(False) self.removeRelationButton.setEnabled(False) # clear all tables connected to relations self.relListWidget.clear() self.relTagsTree.clear() self.relMembersList.clear() # load relations for selected feature self.featRels=self.plugin.dbm.getFeatureRelations(self.feature.id(),self.featureType) for i in range(0,len(self.featRels)): self.relListWidget.addItem(self.__getRelationInfo(self.featRels[i])) if len(self.featRels)==0: self.relListWidget.addItem("") self.addRelationButton.setEnabled(True) return # enable relation tables and button for relation addition self.addRelationButton.setEnabled(True) self.relListWidget.setEnabled(True) self.relTagsTree.setEnabled(True) def putMarkersOnMembers(self,feat,featType): """Function adds additional vertexMarkers to the map. Additional vertexMarker are used to provide better marking of line/polygon. In that case line/polygon geometry is marked with rubberband first, and second one vertexMarker is put on each its vertex. Such extended marking of line/polygon is used (for example) when calling loadFeature() method with "markingMode" parameter set to 2. @param featId identifier of feature to load @param featType type of feature to load - one of 'Point','Line','Polygon' """ if featType=='Point': return pline=None if featType=='Line': pline=feat.geometry().asPolyline() elif featType=='Polygon': pline=feat.geometry().asPolygon()[0] # get qgis settings of line width and color for rubberband settings=QSettings() qgsLineWidth=2 # use fixed width qgsLineRed=settings.value("/qgis/digitizing/line_color_red",QVariant(255)).toInt() qgsLineGreen=settings.value("/qgis/digitizing/line_color_green",QVariant(0)).toInt() qgsLineBlue=settings.value("/qgis/digitizing/line_color_blue",QVariant(0)).toInt() for i in range(0,len(pline)): verMarker=QgsVertexMarker(self.plugin.canvas) verMarker.setIconType(3) verMarker.setIconSize(6) verMarker.setColor(QColor(qgsLineRed[0],qgsLineGreen[0],qgsLineBlue[0])) verMarker.setPenWidth(qgsLineWidth) verMarker.setCenter(pline[i]) verMarker.show() self.verMarkers.append(verMarker) def __removeMemberMarkers(self): """Function removes additional vertexMarkers from the map. Additional vertexMarker are used to provide better marking of line/polygon. In that case line/polygon geometry is marked with rubberband first, and second one vertexMarker is put on each its vertex. Such extended marking of line/polygon is used (for example) when calling loadFeature() method with "markingMode" parameter set to 2. """ for verMarker in self.verMarkers: self.plugin.canvas.scene().removeItem(verMarker) del verMarker self.verMarkers=[] def showFeatureOnMap(self,featId,featType): """Function just shows up specified feature on the map canvas. Showing feature up is realized by putting rubberBand (vertexMarker) on its whole geometry. This rubberBand (vM) is the same as when using loadFeature() method with "markingMode" parameter set to 1. Feature is given by its identifier and its type. Feature data are not loaded into "OSM Feature" widget. Rubberbands (vertexMarkers) of other features are not removed from the map canvas before this action. @param featId identifier of feature to load @param featType type of feature to load - one of 'Point','Line','Polygon' """ # we have to know feature's geometry to be able to display it on map featGeom=self.plugin.dbm.getFeatureGeometry(featId,featType) if not featGeom: return # nothing to show :-/ if featType=='Polygon': self.relRubBandPol.setToGeometry(featGeom,self.plugin.canvas.currentLayer()) elif featType=='Point': self.relVerMarker.setCenter(featGeom.asPoint()) self.relVerMarker.show() elif featType=='Line': self.relRubBand.setToGeometry(featGeom,self.plugin.canvas.currentLayer()) def loadFeature(self,feat,featType,markingMode=1): """Function loads information on specified feature into "OSM Feature" widget elements. It shows up features identifier, type, osm user, timestamp, all its tags and related OSM relations. According to the value of parameter "markingMode" is marks feature on the map canvas. If "markingMode" equals to zero feature is not marked on the map. If it equals to 1, simple rubberband (or vertexMarker) is put on the feature (this is default behavior). If "markingMode" equals to 2, extended rubberband is shown on the map, especially for non-point features. @param feat QgsFeature object of feature to load @param featType type of feature to load - one of 'Point','Line','Polygon' @param markingMode not compulsory; defines quality of feature's rubberband on map """ if not feat or not featType: self.clear() return # remember which feature is loaded self.featureType=featType self.feature=feat # move rubberband to selected feature self.rubBandPol.reset(True) self.rubBand.reset(False) self.verMarker.hide() self.__removeMemberMarkers() if markingMode>0: if self.featureType=='Polygon': self.rubBandPol.setToGeometry(feat.geometry(),self.plugin.canvas.currentLayer()) if markingMode>1: self.putMarkersOnMembers(feat,featType) elif self.featureType=='Point': self.verMarker.setCenter(feat.geometry().asPoint()) self.verMarker.show() elif self.featureType=='Line': self.rubBand.setToGeometry(feat.geometry(),self.plugin.canvas.currentLayer()) if markingMode>1: self.putMarkersOnMembers(feat,featType) # show common feature information (id,feature originator,created,feature type,...) self.__loadFeatureInformation(feat.id(),featType) # show all tags connected to feature onto osm widget dialog self.__loadFeatureTags(feat.id(),featType) # show all relations connected to feature onto osm widget dialog self.__loadFeatureRelations(feat.id(),featType) # feature has been loaded; enable "remove feature" button self.removeButton.setEnabled(True) def __getRelationInfo(self,relId): """Function returns brief info on specified relation. Information consists of relation identifier, its type and other important relation properties and it is returned simply in QString() object. Information are good to be shown in some list (of relations). @param relId identifier of relation @return brief info on relation concatenated in string """ relInfo=relType=relRoute=relBoundary=relRef=relRestr="" tags=self.plugin.dbm.getFeatureTags(relId,"Relation") for i in range(0,len(tags)): key=tags[i][0] value=tags[i][1] if key=="type": relType=value # type: route / boundary, ... elif key=="route": relRoute=value # route: road / bicycle / foot / hiking / bus / railway / tram, ... elif key=="boundary": relBoundary=value # boundary: administrative, ... elif key=="ref": relRef=value elif key=="restriction": relRestr=value if relType=="route": relInfo = QString("(%1) "+relRoute+" "+relType+" "+relRef).arg(relId) elif relType=="boundary": relInfo = QString("(%1) "+relBoundary+" "+relType).arg(relId) elif relType=="restriction": relInfo = QString("(%1) "+relRestr+" "+relType).arg(relId) elif relType=="": relInfo = QString("(%1) relation of unknown type").arg(relId) else: relInfo = QString("(%1) "+relType).arg(relId) return relInfo def __undo(self): """Function performs exactly one undo operation. """ self.plugin.undoredo.undo() def __redo(self): """Function performs exactly one redo operation. """ self.plugin.undoredo.redo() def __urDetailsChecked(self): """Function is called after clicking on urDetailsButton checkbox. It shows or hides OSM Edit History widget. """ if self.urDetailsButton.isChecked(): self.plugin.undoredo.show() self.urDetailsButton.setToolTip("Hide OSM Edit History") else: self.plugin.undoredo.hide() self.urDetailsButton.setToolTip("Show OSM Edit History")