def connectButtons(self):
"""
Connect the default buttons in the interface. Zoom, pan, etc
"""
def connectAction(action, tool):
action.toggled.connect(partial(self.setMapTool, tool))
def cursor(name):
pix = QPixmap(name)
pix = pix.scaled(QSize(24, 24))
return QCursor(pix)
self.zoomInTool = QgsMapToolZoom(self.canvas, False)
self.zoomOutTool = QgsMapToolZoom(self.canvas, True)
self.panTool = QgsMapToolPan(self.canvas)
self.infoTool = InfoTool(self.canvas)
self.infoTool.setAction(self.actionInfo)
self.zoomInTool.setAction(self.actionZoom_In)
self.zoomOutTool.setAction(self.actionZoom_Out)
self.panTool.setAction(self.actionPan)
connectAction(self.actionZoom_In, self.zoomInTool)
connectAction(self.actionZoom_Out, self.zoomOutTool)
connectAction(self.actionPan, self.panTool)
connectAction(self.actionInfo, self.infoTool)
self.zoomInTool.setCursor(cursor(':/icons/in'))
self.zoomOutTool.setCursor(cursor(':/icons/out'))
self.infoTool.setCursor(cursor(':/icons/select'))
self.actionRaster.triggered.connect(self.toggle_raster_layers)
self.actionHome.triggered.connect(self.homeview)
def connectButtons(self):
def connectAction(action, tool):
action.toggled.connect(partial(self.setMapTool, tool))
def cursor(name):
pix = QPixmap(name)
pix = pix.scaled(QSize(24, 24))
return QCursor(pix)
self.zoomInTool = QgsMapToolZoom(self.canvas, False)
self.zoomOutTool = QgsMapToolZoom(self.canvas, True)
self.panTool = PanTool(self.canvas)
self.infoTool = InfoTool(self.canvas)
connectAction(self.actionZoom_In, self.zoomInTool)
connectAction(self.actionZoom_Out, self.zoomOutTool)
connectAction(self.actionPan, self.panTool)
connectAction(self.actionInfo, self.infoTool)
self.zoomInTool.setCursor(cursor(':/icons/in'))
self.zoomOutTool.setCursor(cursor(':/icons/out'))
self.infoTool.setCursor(cursor(':/icons/info'))
self.actionRaster.triggered.connect(self.toggleRasterLayers)
self.infoTool.infoResults.connect(RoamEvents.selectionchanged.emit)
self.actionHome.triggered.connect(self.homeview)
def connectButtons(self):
def connectAction(action, tool):
action.toggled.connect(partial(self.setMapTool, tool))
def cursor(name):
pix = QPixmap(name)
pix = pix.scaled(QSize(24,24))
return QCursor(pix)
self.zoomInTool = QgsMapToolZoom(self.canvas, False)
self.zoomOutTool = QgsMapToolZoom(self.canvas, True)
self.panTool = PanTool(self.canvas)
self.infoTool = InfoTool(self.canvas)
connectAction(self.actionZoom_In, self.zoomInTool)
connectAction(self.actionZoom_Out, self.zoomOutTool)
connectAction(self.actionPan, self.panTool)
connectAction(self.actionInfo, self.infoTool)
self.zoomInTool.setCursor(cursor(':/icons/in'))
self.zoomOutTool.setCursor(cursor(':/icons/out'))
self.infoTool.setCursor(cursor(':/icons/info'))
self.actionRaster.triggered.connect(self.toggleRasterLayers)
self.infoTool.infoResults.connect(RoamEvents.selectionchanged.emit)
self.actionHome.triggered.connect(self.homeview)
def connectButtons(self):
def connectAction(action, tool):
action.toggled.connect(partial(self.setMapTool, tool))
def cursor(name):
pix = QPixmap(name)
pix = pix.scaled(QSize(24,24))
return QCursor(pix)
self.zoomInTool = QgsMapToolZoom(self.canvas, False)
self.zoomOutTool = QgsMapToolZoom(self.canvas, True)
self.panTool = PanTool(self.canvas)
self.moveTool = MoveTool(self.canvas, [])
self.infoTool = InfoTool(self.canvas)
connectAction(self.actionZoom_In, self.zoomInTool)
connectAction(self.actionZoom_Out, self.zoomOutTool)
connectAction(self.actionPan, self.panTool)
connectAction(self.actionMove, self.moveTool)
connectAction(self.actionInfo, self.infoTool)
self.zoomInTool.setCursor(cursor(':/icons/in'))
self.zoomOutTool.setCursor(cursor(':/icons/out'))
self.infoTool.setCursor(cursor(':/icons/info'))
self.actionRaster.triggered.connect(self.toggleRasterLayers)
self.infoTool.infoResults.connect(RoamEvents.selectionchanged.emit)
# The edit toolbutton is currently not being used but leaving it for feature.
self.moveTool.layersupdated.connect(self.actionMove.setEnabled)
self.moveTool.layersupdated.connect(self.actionEdit_Tools.setEnabled)
self.actionHome.triggered.connect(self.homeview)
self.actionQuit.triggered.connect(self.exit)
def connectButtons(self):
"""
Connect the default buttons in the interface. Zoom, pan, etc
"""
def connectAction(action, tool):
action.toggled.connect(partial(self.setMapTool, tool))
def cursor(name):
pix = QPixmap(name)
pix = pix.scaled(QSize(24, 24))
return QCursor(pix)
self.zoomInTool = QgsMapToolZoom(self.canvas, False)
self.zoomOutTool = QgsMapToolZoom(self.canvas, True)
self.panTool = PanTool(self.canvas)
self.infoTool = InfoTool(self.canvas)
connectAction(self.actionZoom_In, self.zoomInTool)
connectAction(self.actionZoom_Out, self.zoomOutTool)
connectAction(self.actionPan, self.panTool)
connectAction(self.actionInfo, self.infoTool)
self.zoomInTool.setCursor(cursor(':/icons/in'))
self.zoomOutTool.setCursor(cursor(':/icons/out'))
self.infoTool.setCursor(cursor(':/icons/select'))
self.actionRaster.triggered.connect(self.toggleRasterLayers)
self.actionHome.triggered.connect(self.homeview)
def connectButtons(self):
def connectAction(action, tool):
action.toggled.connect(partial(self.setMapTool, tool))
def cursor(name):
pix = QPixmap(name)
pix = pix.scaled(QSize(24,24))
return QCursor(pix)
self.zoomInTool = QgsMapToolZoom(self.canvas, False)
self.zoomOutTool = QgsMapToolZoom(self.canvas, True)
self.panTool = QgsMapToolTouch(self.canvas)
self.moveTool = MoveTool(self.canvas, [])
self.infoTool = InfoTool(self.canvas)
self.editTool = EditTool(self.canvas, [])
connectAction(self.actionZoom_In, self.zoomInTool)
connectAction(self.actionZoom_Out, self.zoomOutTool)
connectAction(self.actionPan, self.panTool)
connectAction(self.actionMove, self.moveTool)
connectAction(self.actionInfo, self.infoTool)
connectAction(self.actionEdit_Attributes, self.editTool)
self.zoomInTool.setCursor(cursor(':/icons/in'))
self.zoomOutTool.setCursor(cursor(':/icons/out'))
self.infoTool.setCursor(cursor(':/icons/info'))
self.actionRaster.triggered.connect(self.toggleRasterLayers)
self.infoTool.infoResults.connect(self.showInfoResults)
self.editTool.finished.connect(self.openForm)
self.editTool.featuresfound.connect(self.showFeatureSelection)
self.editTool.radius = 10
self.editTool.layersupdated.connect(self.actionEdit_Attributes.setEnabled)
self.moveTool.layersupdated.connect(self.actionMove.setEnabled)
# The edit toolbutton is currently not being used but leaving it for feature.
self.moveTool.layersupdated.connect(self.actionEdit_Tools.setEnabled)
self.edittoolbar.addAction(self.actionMove)
self.edittoolbar.addToActionGroup(self.actionMove)
showediting = (partial(self.edittoolbar.showToolbar,
self.actionEdit_Tools,
self.actionMove))
self.actionEdit_Tools.toggled.connect(showediting)
self.actionGPSFeature.triggered.connect(self.addFeatureAtGPS)
self.actionGPSFeature.setEnabled(self.actionGPS.isConnected)
self.actionGPS.gpsfixed.connect(self.actionGPSFeature.setEnabled)
self.actionHome.triggered.connect(self.homeview)
self.actionQuit.triggered.connect(self.exit)
class MapWidget(Ui_CanvasWidget, QMainWindow):
def __init__(self, parent=None):
super(MapWidget, self).__init__(parent)
self.setupUi(self)
self.firstshow = True
self.layerbuttons = []
self.editfeaturestack = []
self.lastgpsposition = None
self.project = None
self.gps = None
self.gpslogging = None
self.selectionbands = defaultdict(partial(QgsRubberBand, self.canvas))
self.canvas.setCanvasColor(Qt.white)
self.canvas.enableAntiAliasing(True)
self.canvas.setWheelAction(QgsMapCanvas.WheelZoomToMouseCursor)
if hasattr(self.canvas, 'setParallelRenderingEnabled'):
self.canvas.setParallelRenderingEnabled(True)
pal = QgsPalLabeling()
self.canvas.mapRenderer().setLabelingEngine(pal)
self.canvas.setFrameStyle(QFrame.NoFrame)
self.editgroup = QActionGroup(self)
self.editgroup.setExclusive(True)
self.editgroup.addAction(self.actionPan)
self.editgroup.addAction(self.actionZoom_In)
self.editgroup.addAction(self.actionZoom_Out)
self.editgroup.addAction(self.actionInfo)
self.actionGPS = GPSAction(":/icons/gps", self.canvas, self)
self.projecttoolbar.addAction(self.actionGPS)
gpsspacewidget= QWidget()
gpsspacewidget.setMinimumWidth(30)
gpsspacewidget.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
self.topspaceraction = self.projecttoolbar.insertWidget(self.actionGPS, gpsspacewidget)
self.dataentryselection = QAction(self.projecttoolbar)
self.dataentryaction = self.projecttoolbar.insertAction(self.topspaceraction, self.dataentryselection)
self.dataentryselection.triggered.connect(self.select_data_entry)
self.marker = GPSMarker(self.canvas)
self.marker.hide()
self.currentfeatureband = QgsRubberBand(self.canvas)
self.currentfeatureband.setIconSize(20)
self.currentfeatureband.setWidth(10)
self.currentfeatureband.setColor(QColor(186, 93, 212, 76))
self.gpsband = QgsRubberBand(self.canvas)
self.gpsband.setColor(QColor(0, 0, 212, 76))
self.gpsband.setWidth(5)
RoamEvents.editgeometry.connect(self.queue_feature_for_edit)
RoamEvents.selectioncleared.connect(self.clear_selection)
RoamEvents.selectionchanged.connect(self.highlight_selection)
RoamEvents.featureformloaded.connect(self.feature_form_loaded)
self.connectButtons()
def init_qgisproject(self, doc):
parser = ProjectParser(doc)
canvasnode = parser.canvasnode
self.canvas.freeze()
self.canvas.mapRenderer().readXML(canvasnode)
self.canvaslayers = parser.canvaslayers()
self.canvas.setLayerSet(self.canvaslayers)
#red = QgsProject.instance().readNumEntry( "Gui", "/CanvasColorRedPart", 255 )[0];
#green = QgsProject.instance().readNumEntry( "Gui", "/CanvasColorGreenPart", 255 )[0];
#blue = QgsProject.instance().readNumEntry( "Gui", "/CanvasColorBluePart", 255 )[0];
#color = QColor(red, green, blue);
#self.canvas.setCanvasColor(color)
self.canvas.updateScale()
return self.canvas.mapRenderer().destinationCrs()
def showEvent(self, *args, **kwargs):
if self.firstshow:
self.canvas.refresh()
self.canvas.repaint()
self.firstshow = False
def feature_form_loaded(self, form, feature, project, editmode):
self.currentfeatureband.setToGeometry(feature.geometry(), form.QGISLayer)
def highlight_selection(self, results):
self.clear_selection()
for layer, features in results.iteritems():
band = self.selectionbands[layer]
band.setColor(QColor(255, 0, 0, 200))
band.setIconSize(20)
band.setWidth(2)
band.setBrushStyle(Qt.NoBrush)
band.reset(layer.geometryType())
for feature in features:
band.addGeometry(feature.geometry(), layer)
def highlight_active_selection(self, layer, feature, features):
self.clear_selection()
self.highlight_selection({layer: features})
self.currentfeatureband.setToGeometry(feature.geometry(), layer)
def clear_selection(self):
# Clear the main selection rubber band
self.currentfeatureband.reset()
# Clear the rest
for band in self.selectionbands.itervalues():
band.reset()
self.editfeaturestack = []
def queue_feature_for_edit(self, form, feature):
def trigger_default_action():
for action in self.projecttoolbar.actions():
if action.property('dataentry') and action.isdefault:
action.trigger()
break
self.editfeaturestack.append((form, feature))
self.load_form(form)
trigger_default_action()
def clear_temp_objects(self):
def clear_tool_band():
"""
Clear the rubber band of the active tool if it has one
"""
tool = self.canvas.mapTool()
try:
tool.clearBand()
except AttributeError:
# No clearBand method found, but that's cool.
pass
self.currentfeatureband.reset()
clear_tool_band()
def settings_updated(self, settings):
self.actionGPS.updateGPSPort()
gpslogging = settings.get('gpslogging', True)
if self.gpslogging:
self.gpslogging.logging = gpslogging
def set_gps(self, gps, logging):
self.gps = gps
self.gpslogging = logging
self.gps.gpsposition.connect(self.gps_update_canvas)
self.gps.firstfix.connect(self.gps_first_fix)
self.gps.gpsdisconnected.connect(self.gps_disconnected)
def gps_update_canvas(self, position, gpsinfo):
# Recenter map if we go outside of the 95% of the area
if self.gpslogging.logging:
self.gpsband.addPoint(position)
self.gpsband.show()
if roam.config.settings.get('gpscenter', True):
if not self.lastgpsposition == position:
self.lastposition = position
rect = QgsRectangle(position, position)
extentlimt = QgsRectangle(self.canvas.extent())
extentlimt.scale(0.95)
if not extentlimt.contains(position):
self.zoom_to_location(position)
self.marker.show()
self.marker.setCenter(position)
def gps_first_fix(self, postion, gpsinfo):
zoomtolocation = roam.config.settings.get('gpszoomonfix', True)
if zoomtolocation:
self.canvas.zoomScale(1000)
self.zoom_to_location(postion)
def zoom_to_location(self, position):
rect = QgsRectangle(position, position)
self.canvas.setExtent(rect)
self.canvas.refresh()
def gps_disconnected(self):
self.marker.hide()
def select_data_entry(self):
def showformerror(form):
pass
def actions():
for form in self.project.forms:
action = form.createuiaction()
valid, failreasons = form.valid
if not valid:
roam.utils.warning("Form {} failed to load".format(form.label))
roam.utils.warning("Reasons {}".format(failreasons))
action.triggered.connect(partial(showformerror, form))
else:
action.triggered.connect(partial(self.load_form, form))
yield action
formpicker = PickActionDialog(msg="Select data entry form")
formpicker.addactions(actions())
formpicker.exec_()
def project_loaded(self, project):
self.project = project
self.actionPan.trigger()
try:
firstform = project.forms[0]
self.load_form(firstform)
self.dataentryselection.setVisible(True)
except IndexError:
self.dataentryselection.setVisible(False)
# Enable the raster layers button only if the project contains a raster layer.
layers = QgsMapLayerRegistry.instance().mapLayers().values()
hasrasters = any(layer.type() == QgsMapLayer.RasterLayer for layer in layers)
self.actionRaster.setEnabled(hasrasters)
self.defaultextent = self.canvas.extent()
roam.utils.info("Extent: {}".format(self.defaultextent.toString()))
self.infoTool.selectionlayers = project.selectlayersmapping()
self.canvas.freeze(False)
self.canvas.refresh()
def setMapTool(self, tool, *args):
self.canvas.setMapTool(tool)
def connectButtons(self):
def connectAction(action, tool):
action.toggled.connect(partial(self.setMapTool, tool))
def cursor(name):
pix = QPixmap(name)
pix = pix.scaled(QSize(24,24))
return QCursor(pix)
self.zoomInTool = QgsMapToolZoom(self.canvas, False)
self.zoomOutTool = QgsMapToolZoom(self.canvas, True)
self.panTool = PanTool(self.canvas)
self.infoTool = InfoTool(self.canvas)
connectAction(self.actionZoom_In, self.zoomInTool)
connectAction(self.actionZoom_Out, self.zoomOutTool)
connectAction(self.actionPan, self.panTool)
connectAction(self.actionInfo, self.infoTool)
self.zoomInTool.setCursor(cursor(':/icons/in'))
self.zoomOutTool.setCursor(cursor(':/icons/out'))
self.infoTool.setCursor(cursor(':/icons/info'))
self.actionRaster.triggered.connect(self.toggleRasterLayers)
self.infoTool.infoResults.connect(RoamEvents.selectionchanged.emit)
self.actionHome.triggered.connect(self.homeview)
def homeview(self):
"""
Zoom the mapview canvas to the extents the project was opened at i.e. the
default extent.
"""
self.canvas.setExtent(self.defaultextent)
self.canvas.refresh()
def load_form(self, form):
self.clearCapatureTools()
self.dataentryselection.setIcon(QIcon(form.icon))
self.dataentryselection.setText(form.icontext)
self.create_capture_buttons(form)
def create_capture_buttons(self, form):
tool = form.getMaptool()(self.canvas)
for action in tool.actions:
# Create the action here.
if action.ismaptool:
action.toggled.connect(partial(self.setMapTool, tool))
# Set the action as a data entry button so we can remove it later.
action.setProperty("dataentry", True)
self.editgroup.addAction(action)
self.layerbuttons.append(action)
self.projecttoolbar.insertAction(self.topspaceraction, action)
action.setChecked(action.isdefault)
if hasattr(tool, 'geometryComplete'):
add = partial(self.add_new_feature, form)
tool.geometryComplete.connect(add)
else:
tool.finished.connect(self.openForm)
tool.error.connect(partial(self.showUIMessage, form.label))
def add_new_feature(self, form, geometry):
"""
Add a new new feature to the given layer
"""
# TODO Extract into function.
# NOTE This function is doing too much, acts as add and also edit.
layer = form.QGISLayer
if layer.geometryType() in [QGis.WKBMultiLineString, QGis.WKBMultiPoint, QGis.WKBMultiPolygon]:
geometry.convertToMultiType()
try:
form, feature = self.editfeaturestack.pop()
self.editfeaturegeometry(form, feature, newgeometry=geometry)
return
except IndexError:
pass
layer = form.QGISLayer
fields = layer.pendingFields()
feature = QgsFeature(fields)
feature.setGeometry(geometry)
for index in xrange(fields.count()):
pkindexes = layer.dataProvider().pkAttributeIndexes()
if index in pkindexes and layer.dataProvider().name() == 'spatialite':
continue
value = layer.dataProvider().defaultValue(index)
feature[index] = value
RoamEvents.open_feature_form(form, feature, editmode=False)
def editfeaturegeometry(self, form, feature, newgeometry):
# TODO Extract into function.
layer = form.QGISLayer
layer.startEditing()
feature.setGeometry(newgeometry)
layer.updateFeature(feature)
saved = layer.commitChanges()
if not saved:
map(roam.utils.error, layer.commitErrors())
self.canvas.refresh()
self.currentfeatureband.setToGeometry(feature.geometry(), layer)
RoamEvents.editgeometry_complete.emit(form, feature)
def clearCapatureTools(self):
captureselected = False
for action in self.projecttoolbar.actions():
if action.objectName() == "capture" and action.isChecked():
captureselected = True
if action.property('dataentry'):
self.projecttoolbar.removeAction(action)
return captureselected
def toggleRasterLayers(self):
"""
Toggle all raster layers on or off.
"""
if not self.canvaslayers:
return
#Freeze the canvas to save on UI refresh
self.canvas.freeze()
for layer in self.canvaslayers:
if layer.layer().type() == QgsMapLayer.RasterLayer:
layer.setVisible(not layer.isVisible())
# Really!? We have to reload the whole layer set every time?
# WAT?
self.canvas.setLayerSet(self.canvaslayers)
self.canvas.freeze(False)
self.canvas.refresh()
def cleanup(self):
self.gpsband.reset()
self.gpsband.hide()
self.clear_selection()
self.clear_temp_objects()
self.clearCapatureTools()
self.canvas.freeze()
self.canvas.clear()
self.canvas.freeze(False)
for action in self.layerbuttons:
self.editgroup.removeAction(action)
class MapWidget(Ui_CanvasWidget, QMainWindow):
def __init__(self, parent=None):
super(MapWidget, self).__init__(parent)
self.setupUi(self)
self.snapping = True
icon = roam_style.iconsize()
self.projecttoolbar.setIconSize(QSize(icon, icon))
self.defaultextent = None
self.current_form = None
self.last_form = None
self.layerbuttons = []
self.editfeaturestack = []
self.lastgpsposition = None
self.project = None
self.gps = None
self.gpslogging = None
self.selectionbands = defaultdict(partial(QgsRubberBand, self.canvas))
self.bridge = QgsLayerTreeMapCanvasBridge(
QgsProject.instance().layerTreeRoot(), self.canvas)
self.bridge.setAutoSetupOnFirstLayer(False)
self.canvas.setCanvasColor(Qt.white)
self.canvas.enableAntiAliasing(True)
self.snappingutils = SnappingUtils(self.canvas, self)
self.canvas.setSnappingUtils(self.snappingutils)
threadcount = QThread.idealThreadCount()
threadcount = 2 if threadcount > 2 else 1
QgsApplication.setMaxThreads(threadcount)
self.canvas.setParallelRenderingEnabled(True)
self.canvas.setFrameStyle(QFrame.NoFrame)
self.editgroup = QActionGroup(self)
self.editgroup.setExclusive(True)
self.editgroup.addAction(self.actionPan)
self.editgroup.addAction(self.actionZoom_In)
self.editgroup.addAction(self.actionZoom_Out)
self.editgroup.addAction(self.actionInfo)
self.actionGPS = GPSAction(self.canvas, self)
self.projecttoolbar.addAction(self.actionGPS)
if roam.config.settings.get('north_arrow', False):
self.northarrow = NorthArrow(":/icons/north", self.canvas)
self.northarrow.setPos(10, 10)
self.canvas.scene().addItem(self.northarrow)
smallmode = roam.config.settings.get("smallmode", False)
self.projecttoolbar.setSmallMode(smallmode)
self.projecttoolbar.setContextMenuPolicy(Qt.CustomContextMenu)
gpsspacewidget = QWidget()
gpsspacewidget.setMinimumWidth(30)
gpsspacewidget.setSizePolicy(QSizePolicy.Expanding,
QSizePolicy.Expanding)
self.topspaceraction = self.projecttoolbar.insertWidget(
self.actionGPS, gpsspacewidget)
self.dataentryselection = QAction(self.projecttoolbar)
self.dataentryaction = self.projecttoolbar.insertAction(
self.topspaceraction, self.dataentryselection)
self.dataentryselection.triggered.connect(self.select_data_entry)
self.gpsMarker = GPSMarker(self.canvas)
self.gpsMarker.hide()
self.currentfeatureband = CurrentSelection(self.canvas)
self.currentfeatureband.setIconSize(30)
self.currentfeatureband.setWidth(10)
self.currentfeatureband.setColor(QColor(88, 64, 173, 50))
self.currentfeatureband.setOutlineColour(QColor(88, 64, 173))
self.gpsband = QgsRubberBand(self.canvas)
self.gpsband.setColor(QColor(165, 111, 212, 75))
self.gpsband.setWidth(5)
RoamEvents.refresh_map.connect(self.refresh_map)
RoamEvents.editgeometry.connect(self.queue_feature_for_edit)
RoamEvents.selectioncleared.connect(self.clear_selection)
RoamEvents.selectionchanged.connect(self.highlight_selection)
RoamEvents.openfeatureform.connect(self.feature_form_loaded)
RoamEvents.sync_complete.connect(self.refresh_map)
RoamEvents.snappingChanged.connect(self.snapping_changed)
self.snappingbutton = QToolButton()
self.snappingbutton.setText("Snapping: On")
self.snappingbutton.setAutoRaise(True)
self.snappingbutton.pressed.connect(self.toggle_snapping)
spacer = QWidget()
spacer2 = QWidget()
spacer.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Fixed)
spacer2.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Fixed)
self.scalewidget = QgsScaleComboBox()
self.scalebutton = QToolButton()
self.scalebutton.setAutoRaise(True)
self.scalebutton.setMaximumHeight(self.statusbar.height())
self.scalebutton.pressed.connect(self.selectscale)
self.scalebutton.setText("Scale")
self.scalelist = BigList(parent=self.canvas,
centeronparent=True,
showsave=False)
self.scalelist.hide()
self.scalelist.setlabel("Map Scale")
self.scalelist.setmodel(self.scalewidget.model())
self.scalelist.closewidget.connect(self.scalelist.close)
self.scalelist.itemselected.connect(self.update_scale_from_item)
self.scalelist.itemselected.connect(self.scalelist.close)
self.positionlabel = QLabel('')
self.gpslabel = QLabel("GPS: Not active")
self.gpslabelposition = QLabel("")
self.statusbar.addWidget(self.snappingbutton)
self.statusbar.addWidget(spacer2)
self.statusbar.addWidget(self.gpslabel)
self.statusbar.addWidget(self.gpslabelposition)
self.statusbar.addPermanentWidget(self.scalebutton)
self.canvas.extentsChanged.connect(self.update_status_label)
self.canvas.scaleChanged.connect(self.update_status_label)
self.connectButtons()
scalebar_enabled = roam.config.settings.get('scale_bar', False)
self.scalebar_enabled = False
if scalebar_enabled:
roam.utils.warning(
"Unsupported feature: Scale bar support not ported to QGIS 3 API yet."
)
RoamEvents.raisemessage(
"Unsupported feature",
"Scale bar support not ported to QGIS 3 API yet",
level=RoamEvents.CRITICAL)
self.scalebar_enabled = False
# self.scalebar = ScaleBarItem(self.canvas)
# self.canvas.scene().addItem(self.scalebar)
def clear_plugins(self) -> None:
"""
Clear all the plugin added toolbars from the map interface.
"""
toolbars = self.findChildren(QToolBar)
for toolbar in toolbars:
if toolbar.property("plugin_toolbar"):
toolbar.unload()
self.removeToolBar(toolbar)
toolbar.deleteLater()
def add_plugins(self, pluginnames) -> None:
"""
Add the given plugins to to the mapping interface.
Adds the toolbars the plugin exposes as new toolbars for the user.
:param pluginnames: The names of the plugins to load. Must already be loaded
by the plugin loader
"""
for name in pluginnames:
# Get the plugin
try:
plugin_mod = plugins.loaded_plugins[name]
except KeyError:
continue
if not hasattr(plugin_mod, 'toolbars'):
roam.utils.warning(
"No toolbars() function found in {}".format(name))
continue
toolbars = plugin_mod.toolbars()
self.load_plugin_toolbars(toolbars)
def load_plugin_toolbars(self, toolbars):
"""
Load the plugin toolbars into the mapping interface.
:param toolbars: The list of toolbars class objects to load.
:return:
"""
for ToolBarClass in toolbars:
toolbar = ToolBarClass(plugins.api, self)
self.addToolBar(Qt.BottomToolBarArea, toolbar)
toolbar.setProperty("plugin_toolbar", True)
def snapping_changed(self, snapping):
"""
Called when the snapping settings have changed. Updates the label in the status bar.
:param snapping:
"""
self.snapping = snapping
if snapping:
self.snappingbutton.setText("Snapping: On")
else:
self.snappingbutton.setText("Snapping: Off")
def toggle_snapping(self):
"""
Toggle snapping on or off.
"""
self.snapping = not self.snapping
try:
self.canvas.mapTool().toggle_snapping()
except AttributeError:
pass
RoamEvents.snappingChanged.emit(self.snapping)
def selectscale(self):
"""
Show the select scale widget.
:return:
"""
self.scalelist.show()
def update_scale_from_item(self, index):
"""
Update the canvas scale from the selected scale item.
:param index: The index of the selected item.
"""
scale, _ = self.scalewidget.toDouble(index.data(Qt.DisplayRole))
self.canvas.zoomScale(1.0 / scale)
def update_gps_fixed_label(self, fixed, gpsinfo):
if not fixed:
self.gpslabel.setText("GPS: Acquiring fix")
self.gpslabelposition.setText("")
quality_mappings = {
0: "invalid",
1: "GPS",
2: "DGPS",
3: "PPS",
4: "Real Time Kinematic",
5: "Float RTK",
6: "Estimated",
7: "Manual input mode",
8: "Simulation mode"
}
def update_gps_label(self, position, gpsinfo):
"""
Update the GPS label in the status bar with the GPS status.
:param position: The current GPS position.
:param gpsinfo: The current extra GPS information.
"""
if not self.gps.connected:
return
fixtype = self.quality_mappings.get(gpsinfo.quality, "")
self.gpslabel.setText(
"DOP P:<b>{0:.2f}</b> H:<b>{1:.2f}</b> V:<b>{2:.2f}</b> "
"Fix: <b>{3}</b> "
"Sats: <b>{4}</b> ".format(gpsinfo.pdop, gpsinfo.hdop,
gpsinfo.vdop, fixtype,
gpsinfo.satellitesUsed))
places = roam.config.settings.get("gpsplaces", 8)
self.gpslabelposition.setText("X: <b>{x:.{places}f}</b> "
"Y: <b>{y:.{places}f}</b> "
"Z: <b>{z}m</b> ".format(
x=position.x(),
y=position.y(),
z=gpsinfo.elevation,
places=places))
def gps_disconnected(self):
self.gpslabel.setText("GPS: Not Active")
self.gpslabelposition.setText("")
self.gpsMarker.hide()
def zoom_to_feature(self, feature):
"""
Zoom to the given feature in the map.
:param feature:
:return:
"""
box = feature.geometry().boundingBox()
xmin, xmax, ymin, ymax = box.xMinimum(), box.xMaximum(), box.yMinimum(
), box.yMaximum()
xmin -= 5
xmax += 5
ymin -= 5
ymax += 5
box = QgsRectangle(xmin, ymin, xmax, ymax)
self.canvas.setExtent(box)
self.canvas.refresh()
def update_status_label(self, *args) -> None:
"""
Update the status bar labels when the information has changed.
"""
extent = self.canvas.extent()
self.positionlabel.setText("Map Center: {}".format(
extent.center().toString()))
scale = 1.0 / self.canvas.scale()
scale = self.scalewidget.toString(scale)
self.scalebutton.setText(scale)
def refresh_map(self) -> None:
"""
Refresh the map
"""
self.canvas.refresh()
def updatescale(self) -> None:
"""
Update the scale of the map with the current scale from the scale widget
:return:
"""
self.canvas.zoomScale(1.0 / self.scalewidget.scale())
@property
def crs(self) -> QgsCoordinateReferenceSystem:
"""
Get the CRS used that is being used in the canvas
:return: The QgsCoordinateReferenceSystem that is used by the canvas
"""
return self.canvas.mapSettings().destinationCrs()
def feature_form_loaded(self, form, feature, *args):
"""
Called when the feature form is loaded.
:param form: The Form object. Holds a reference to the forms layer.
:param feature: The current capture feature
"""
self.currentfeatureband.setToGeometry(feature.geometry(),
form.QGISLayer)
def highlight_selection(self, results):
"""
Highlight the selection on the canvas. This updates all selected objects based on the result set.
:param results: A dict-of-list of layer-features.
"""
self.clear_selection()
for layer, features in results.items():
band = self.selectionbands[layer]
band.setColor(QColor(255, 0, 0))
band.setIconSize(25)
band.setWidth(5)
band.setBrushStyle(Qt.NoBrush)
band.reset(layer.geometryType())
band.setZValue(self.currentfeatureband.zValue() - 1)
for feature in features:
band.addGeometry(feature.geometry(), layer)
self.canvas.update()
def highlight_active_selection(self, layer, feature, features):
"""
Update the current active selected feature.
:param layer: The layer of the active feature.
:param feature: The active feature.
:param features: The other features in the set to show as non active selection.
:return:
"""
self.clear_selection()
self.highlight_selection({layer: features})
self.currentfeatureband.setToGeometry(feature.geometry(), layer)
self.canvas.update()
def clear_selection(self):
"""
Clear the selection from the canvas. Resets all selection rubber bands.
:return:
"""
# Clear the main selection rubber band
self.canvas.scene().update()
self.currentfeatureband.reset()
# Clear the rest
for band in self.selectionbands.values():
band.reset()
self.canvas.update()
self.editfeaturestack = []
def queue_feature_for_edit(self, form, feature):
"""
Push a feature on the edit stack so the feature can have the geometry edited.
:note: This is a big hack and I don't like it!
:param form: The form for the current feature
:param feature: The active feature.
"""
def trigger_default_action():
for action in self.projecttoolbar.actions():
if action.property('dataentry') and action.isdefault:
action.trigger()
self.canvas.currentLayer().startEditing()
self.canvas.mapTool().setEditMode(True, feature.geometry(),
feature)
break
self.editfeaturestack.append((form, feature))
self.save_current_form()
self.load_form(form)
trigger_default_action()
def save_current_form(self):
self.last_form = self.current_form
def restore_last_form(self):
self.load_form(self.last_form)
def clear_temp_objects(self):
"""
Clear all temp objects from the canvas.
:return:
"""
def clear_tool_band():
"""
Clear the rubber band of the active tool if it has one
"""
tool = self.canvas.mapTool()
if hasattr(tool, "clearBand"):
tool.clearBand()
self.currentfeatureband.reset()
clear_tool_band()
def settings_updated(self, settings):
"""
Called when the settings have been updated in the Roam config.
:param settings: A dict of the settings.
"""
self.actionGPS.updateGPSPort()
gpslogging = settings.get('gpslogging', True)
if self.gpslogging:
self.gpslogging.logging = gpslogging
smallmode = settings.get("smallmode", False)
self.projecttoolbar.setSmallMode(smallmode)
def set_gps(self, gps, logging):
"""
Set the GPS for the map widget. Connects GPS signals
"""
self.gps = gps
self.gpslogging = logging
self.gps.gpsfixed.connect(self.update_gps_fixed_label)
self.gps.gpsposition.connect(self.update_gps_label)
self.gps.gpsposition.connect(self.gps_update_canvas)
self.gps.firstfix.connect(self.gps_first_fix)
self.gps.gpsdisconnected.connect(self.gps_disconnected)
self.gpsMarker.setgps(self.gps)
self.actionGPS.setgps(gps)
def gps_update_canvas(self, position, gpsinfo):
"""
Updates the map canvas based on the GPS position. By default if the GPS is outside the canvas
extent the canvas will move to center on the GPS. Can be turned off in settings.
:param postion: The current GPS position.
:param gpsinfo: The extra GPS information
"""
# Recenter map if we go outside of the 95% of the area
if self.gpslogging.logging:
self.gpsband.addPoint(position)
self.gpsband.show()
if roam.config.settings.get('gpscenter', True):
if not self.lastgpsposition == position:
self.lastgpsposition = position
rect = QgsRectangle(position, position)
extentlimt = QgsRectangle(self.canvas.extent())
extentlimt.scale(0.95)
if not extentlimt.contains(position):
self.zoom_to_location(position)
self.gpsMarker.show()
self.gpsMarker.setCenter(position, gpsinfo)
def gps_first_fix(self, postion, gpsinfo):
"""
Called the first time the GPS gets a fix. If set this will zoom to the GPS after the first fix
:param postion: The current GPS position.
:param gpsinfo: The extra GPS information
"""
zoomtolocation = roam.config.settings.get('gpszoomonfix', True)
if zoomtolocation:
self.canvas.zoomScale(1000)
self.zoom_to_location(postion)
def zoom_to_location(self, position):
"""
Zoom to ta given position on the map..
"""
rect = QgsRectangle(position, position)
self.canvas.setExtent(rect)
self.canvas.refresh()
def select_data_entry(self):
"""
Open the form selection widget to allow the user to pick the active capture form.
"""
def showformerror(form):
pass
def actions():
for form in self.project.forms:
if not self.form_valid_for_capture(form):
continue
action = form.createuiaction()
valid, failreasons = form.valid
if not valid:
roam.utils.warning("Form {} failed to load".format(
form.label))
roam.utils.warning("Reasons {}".format(failreasons))
action.triggered.connect(partial(showformerror, form))
else:
action.triggered.connect(partial(self.load_form, form))
yield action
formpicker = PickActionDialog(msg="Select data entry form", wrap=5)
formpicker.addactions(actions())
formpicker.exec_()
def project_loaded(self, project):
"""
Called when the project is loaded. Main entry point for a loade project.
:param project: The Roam project that has been loaded.
"""
self.snappingutils.setConfig(QgsProject.instance().snappingConfig())
self.project = project
self.actionPan.trigger()
firstform = self.first_capture_form()
if firstform:
self.load_form(firstform)
self.dataentryselection.setVisible(True)
else:
self.dataentryselection.setVisible(False)
# Enable the raster layers button only if the project contains a raster layer.
layers = roam.api.utils.layers()
hasrasters = any(layer.type() == QgsMapLayer.RasterLayer
for layer in layers)
self.actionRaster.setEnabled(hasrasters)
self.defaultextent = self.canvas.extent()
roam.utils.info("Extent: {}".format(self.defaultextent.toString()))
self.infoTool.selectionlayers = project.selectlayersmapping()
self.canvas.refresh()
projectscales, _ = QgsProject.instance().readBoolEntry(
"Scales", "/useProjectScales")
if projectscales:
projectscales, _ = QgsProject.instance().readListEntry(
"Scales", "/ScalesList")
self.scalewidget.updateScales(projectscales)
else:
scales = [
"1:50000", "1:25000", "1:10000", "1:5000", "1:2500", "1:1000",
"1:500", "1:250", "1:200", "1:100"
]
scales = roam.config.settings.get('scales', scales)
self.scalewidget.updateScales(scales)
if self.scalebar_enabled:
self.scalebar.update()
red = QgsProject.instance().readNumEntry("Gui", "/CanvasColorRedPart",
255)[0]
green = QgsProject.instance().readNumEntry("Gui",
"/CanvasColorGreenPart",
255)[0]
blue = QgsProject.instance().readNumEntry("Gui",
"/CanvasColorBluePart",
255)[0]
myColor = QColor(red, green, blue)
self.canvas.setCanvasColor(myColor)
self.actionPan.toggle()
self.clear_plugins()
self.add_plugins(project.enabled_plugins)
def setMapTool(self, tool, *args):
"""
Set the active map tool in the canvas.
:param tool: The QgsMapTool to set.
"""
if tool == self.canvas.mapTool():
return
if hasattr(tool, "setSnapping"):
tool.setSnapping(self.snapping)
self.canvas.setMapTool(tool)
def connectButtons(self):
"""
Connect the default buttons in the interface. Zoom, pan, etc
"""
def connectAction(action, tool):
action.toggled.connect(partial(self.setMapTool, tool))
def cursor(name):
pix = QPixmap(name)
pix = pix.scaled(QSize(24, 24))
return QCursor(pix)
self.zoomInTool = QgsMapToolZoom(self.canvas, False)
self.zoomOutTool = QgsMapToolZoom(self.canvas, True)
self.panTool = QgsMapToolPan(self.canvas)
self.infoTool = InfoTool(self.canvas)
self.infoTool.setAction(self.actionInfo)
self.zoomInTool.setAction(self.actionZoom_In)
self.zoomOutTool.setAction(self.actionZoom_Out)
self.panTool.setAction(self.actionPan)
connectAction(self.actionZoom_In, self.zoomInTool)
connectAction(self.actionZoom_Out, self.zoomOutTool)
connectAction(self.actionPan, self.panTool)
connectAction(self.actionInfo, self.infoTool)
self.zoomInTool.setCursor(cursor(':/icons/in'))
self.zoomOutTool.setCursor(cursor(':/icons/out'))
self.infoTool.setCursor(cursor(':/icons/select'))
self.actionRaster.triggered.connect(self.toggle_raster_layers)
self.actionHome.triggered.connect(self.homeview)
def homeview(self):
"""
Zoom the mapview canvas to the extents the project was opened at i.e. the
default extent.
"""
if self.defaultextent:
self.canvas.setExtent(self.defaultextent)
self.canvas.refresh()
def form_valid_for_capture(self, form):
"""
Check if the given form is valid for capture.
:param form: The form to check.
:return: True if valid form for capture
"""
return form.has_geometry and self.project.layer_can_capture(
form.QGISLayer)
def first_capture_form(self):
"""
Return the first valid form for capture.
"""
for form in self.project.forms:
if self.form_valid_for_capture(form):
return form
def load_form(self, form):
"""
Load the given form so it's the active one for capture
:param form: The form to load
"""
self.clear_capture_tools()
self.dataentryselection.setIcon(QIcon(form.icon))
self.dataentryselection.setText(form.icontext)
self.create_capture_buttons(form)
self.current_form = form
def create_capture_buttons(self, form):
"""
Create the capture buttons in the toolbar for the given form.
:param form: The active form.
"""
tool = form.getMaptool()(self.canvas, form.settings)
for action in tool.actions:
# Create the action here.
if action.ismaptool:
action.toggled.connect(partial(self.setMapTool, tool))
# Set the action as a data entry button so we can remove it later.
action.setProperty("dataentry", True)
self.editgroup.addAction(action)
self.layerbuttons.append(action)
self.projecttoolbar.insertAction(self.topspaceraction, action)
action.setChecked(action.isdefault)
if hasattr(tool, 'geometryComplete'):
add = partial(self.add_new_feature, form)
tool.geometryComplete.connect(add)
else:
tool.finished.connect(self.openForm)
tool.error.connect(self.show_invalid_geometry_message)
def show_invalid_geometry_message(self, message) -> None:
"""
Shows the message to the user if the there is a invalid geometry capture.
:param message: The message to show the user.
"""
RoamEvents.raisemessage("Invalid geometry capture",
message,
level=RoamEvents.CRITICAL)
if self.canvas.currentLayer() is not None:
self.canvas.currentLayer().rollBack()
RoamEvents.editgeometry_invalid.emit()
def add_new_feature(self, form, geometry: QgsGeometry):
"""
Add a new new feature to the given layer
:param form: The form to use for the new feature.
:param geometry: The new geometry to create the feature for.
"""
# NOTE This function is doing too much, acts as add and also edit.
layer = form.QGISLayer
if geometry.isMultipart():
geometry.convertToMultiType()
# Transform the new geometry back into the map layers geometry if it's needed
transform = self.canvas.mapSettings().layerTransform(layer)
if transform.isValid():
geometry.transform(transform,
QgsCoordinateTransform.ReverseTransform)
try:
form, feature = self.editfeaturestack.pop()
self.editfeaturegeometry(form, feature, newgeometry=geometry)
return
except IndexError:
pass
feature = form.new_feature(geometry=geometry)
RoamEvents.load_feature_form(form, feature, editmode=False)
def editfeaturegeometry(self, form, feature, newgeometry):
# TODO Extract into function.
layer = form.QGISLayer
layer.startEditing()
feature.setGeometry(newgeometry)
layer.updateFeature(feature)
saved = layer.commitChanges()
if not saved:
map(roam.utils.error, layer.commitErrors())
self.canvas.refresh()
self.currentfeatureband.setToGeometry(feature.geometry(), layer)
RoamEvents.editgeometry_complete.emit(form, feature)
self.canvas.mapTool().setEditMode(False, None, None)
self.restore_last_form()
def clear_capture_tools(self):
"""
Clear the capture tools from the toolbar.
:return: True if the capture button was active at the time of clearing.
"""
captureselected = False
for action in self.projecttoolbar.actions():
if action.objectName() == "capture" and action.isChecked():
captureselected = True
if action.property('dataentry'):
self.projecttoolbar.removeAction(action)
return captureselected
def toggle_raster_layers(self) -> None:
"""
Toggle all raster layers on or off.
"""
# Freeze the canvas to save on UI refresh
dlg = PickActionDialog(msg="Raster visibility")
actions = [
(":/icons/raster_0", "Off", partial(self._set_basemaps_opacity,
0), "photo_off"),
(":/icons/raster_25", "25%",
partial(self._set_basemaps_opacity, .25), "photo_25"),
(":/icons/raster_50", "50%",
partial(self._set_basemaps_opacity, .50), "photo_50"),
(":/icons/raster_75", "75%",
partial(self._set_basemaps_opacity, .75), "photo_75"),
(":/icons/raster_100", "100%",
partial(self._set_basemaps_opacity, 1), "photo_100"),
]
# ":/icons/raster_100"), "100%", self, triggered=partial(self._set_raster_layer_value, 1),
# objectName="photo_100")
dialog_actions = []
for action in actions:
icon = QIcon(action[0])
qaction = QAction(icon,
action[1],
self,
triggered=action[2],
objectName=action[3])
dialog_actions.append(qaction)
dlg.addactions(dialog_actions)
dlg.exec_()
def _set_basemaps_opacity(self, value=0) -> None:
"""
Set the opacity for all basemap raster layers.
:param value: The opacity value betwen 0 and 1
"""
tree = QgsProject.instance().layerTreeRoot()
for node in tree.findLayers():
layer = node.layer()
if node.layer().type() == QgsMapLayer.RasterLayer:
if value > 0:
node.setItemVisibilityChecked(Qt.Checked)
renderer = layer.renderer()
renderer.setOpacity(value)
if value == 0:
node.setItemVisibilityChecked(Qt.Unchecked)
self.canvas.refresh()
def cleanup(self):
"""
Clean up when the project has changed.
:return:
"""
# TODO Review cleanup
# self.bridge.clear()
self.gpsband.reset()
self.gpsband.hide()
self.clear_selection()
self.clear_temp_objects()
self.clear_capture_tools()
for action in self.layerbuttons:
self.editgroup.removeAction(action)
class MapWidget(Ui_CanvasWidget, QMainWindow):
def __init__(self, parent=None):
super(MapWidget, self).__init__(parent)
self.setupUi(self)
self.firstshow = True
self.layerbuttons = []
self.editfeaturestack = []
self.lastgpsposition = None
self.project = None
self.gps = None
self.gpslogging = None
self.selectionbands = defaultdict(partial(QgsRubberBand, self.canvas))
self.canvas.setCanvasColor(Qt.white)
self.canvas.enableAntiAliasing(True)
self.canvas.setWheelAction(QgsMapCanvas.WheelZoomToMouseCursor)
if hasattr(self.canvas, 'setParallelRenderingEnabled'):
self.canvas.setParallelRenderingEnabled(True)
pal = QgsPalLabeling()
self.canvas.mapRenderer().setLabelingEngine(pal)
self.canvas.setFrameStyle(QFrame.NoFrame)
self.editgroup = QActionGroup(self)
self.editgroup.setExclusive(True)
self.editgroup.addAction(self.actionPan)
self.editgroup.addAction(self.actionZoom_In)
self.editgroup.addAction(self.actionZoom_Out)
self.editgroup.addAction(self.actionInfo)
self.actionGPS = GPSAction(":/icons/gps", self.canvas, self)
self.projecttoolbar.addAction(self.actionGPS)
gpsspacewidget = QWidget()
gpsspacewidget.setMinimumWidth(30)
gpsspacewidget.setSizePolicy(QSizePolicy.Expanding,
QSizePolicy.Expanding)
self.topspaceraction = self.projecttoolbar.insertWidget(
self.actionGPS, gpsspacewidget)
self.dataentryselection = QAction(self.projecttoolbar)
self.dataentryaction = self.projecttoolbar.insertAction(
self.topspaceraction, self.dataentryselection)
self.dataentryselection.triggered.connect(self.select_data_entry)
self.marker = GPSMarker(self.canvas)
self.marker.hide()
self.currentfeatureband = QgsRubberBand(self.canvas)
self.currentfeatureband.setIconSize(20)
self.currentfeatureband.setWidth(10)
self.currentfeatureband.setColor(QColor(186, 93, 212, 76))
self.gpsband = QgsRubberBand(self.canvas)
self.gpsband.setColor(QColor(0, 0, 212, 76))
self.gpsband.setWidth(5)
RoamEvents.editgeometry.connect(self.queue_feature_for_edit)
RoamEvents.selectioncleared.connect(self.clear_selection)
RoamEvents.selectionchanged.connect(self.highlight_selection)
RoamEvents.featureformloaded.connect(self.feature_form_loaded)
self.connectButtons()
def init_qgisproject(self, doc):
parser = ProjectParser(doc)
canvasnode = parser.canvasnode
self.canvas.freeze()
self.canvas.mapRenderer().readXML(canvasnode)
self.canvaslayers = parser.canvaslayers()
self.canvas.setLayerSet(self.canvaslayers)
#red = QgsProject.instance().readNumEntry( "Gui", "/CanvasColorRedPart", 255 )[0];
#green = QgsProject.instance().readNumEntry( "Gui", "/CanvasColorGreenPart", 255 )[0];
#blue = QgsProject.instance().readNumEntry( "Gui", "/CanvasColorBluePart", 255 )[0];
#color = QColor(red, green, blue);
#self.canvas.setCanvasColor(color)
self.canvas.updateScale()
return self.canvas.mapRenderer().destinationCrs()
def showEvent(self, *args, **kwargs):
if self.firstshow:
self.canvas.refresh()
self.canvas.repaint()
self.firstshow = False
def feature_form_loaded(self, form, feature, project, editmode):
self.currentfeatureband.setToGeometry(feature.geometry(),
form.QGISLayer)
def highlight_selection(self, results):
self.clear_selection()
for layer, features in results.iteritems():
band = self.selectionbands[layer]
band.setColor(QColor(255, 0, 0, 200))
band.setIconSize(20)
band.setWidth(2)
band.setBrushStyle(Qt.NoBrush)
band.reset(layer.geometryType())
for feature in features:
band.addGeometry(feature.geometry(), layer)
def highlight_active_selection(self, layer, feature, features):
self.clear_selection()
self.highlight_selection({layer: features})
self.currentfeatureband.setToGeometry(feature.geometry(), layer)
def clear_selection(self):
# Clear the main selection rubber band
self.currentfeatureband.reset()
# Clear the rest
for band in self.selectionbands.itervalues():
band.reset()
self.editfeaturestack = []
def queue_feature_for_edit(self, form, feature):
def trigger_default_action():
for action in self.projecttoolbar.actions():
if action.property('dataentry') and action.isdefault:
action.trigger()
break
self.editfeaturestack.append((form, feature))
self.load_form(form)
trigger_default_action()
def clear_temp_objects(self):
def clear_tool_band():
"""
Clear the rubber band of the active tool if it has one
"""
tool = self.canvas.mapTool()
try:
tool.clearBand()
except AttributeError:
# No clearBand method found, but that's cool.
pass
self.currentfeatureband.reset()
clear_tool_band()
def settings_updated(self, settings):
self.actionGPS.updateGPSPort()
gpslogging = settings.get('gpslogging', True)
if self.gpslogging:
self.gpslogging.logging = gpslogging
def set_gps(self, gps, logging):
self.gps = gps
self.gpslogging = logging
self.gps.gpsposition.connect(self.gps_update_canvas)
self.gps.firstfix.connect(self.gps_first_fix)
self.gps.gpsdisconnected.connect(self.gps_disconnected)
def gps_update_canvas(self, position, gpsinfo):
# Recenter map if we go outside of the 95% of the area
if self.gpslogging.logging:
self.gpsband.addPoint(position)
self.gpsband.show()
if roam.config.settings.get('gpscenter', True):
if not self.lastgpsposition == position:
self.lastposition = position
rect = QgsRectangle(position, position)
extentlimt = QgsRectangle(self.canvas.extent())
extentlimt.scale(0.95)
if not extentlimt.contains(position):
self.zoom_to_location(position)
self.marker.show()
self.marker.setCenter(position)
def gps_first_fix(self, postion, gpsinfo):
zoomtolocation = roam.config.settings.get('gpszoomonfix', True)
if zoomtolocation:
self.canvas.zoomScale(1000)
self.zoom_to_location(postion)
def zoom_to_location(self, position):
rect = QgsRectangle(position, position)
self.canvas.setExtent(rect)
self.canvas.refresh()
def gps_disconnected(self):
self.marker.hide()
def select_data_entry(self):
def showformerror(form):
pass
def actions():
for form in self.project.forms:
action = form.createuiaction()
valid, failreasons = form.valid
if not valid:
roam.utils.warning("Form {} failed to load".format(
form.label))
roam.utils.warning("Reasons {}".format(failreasons))
action.triggered.connect(partial(showformerror, form))
else:
action.triggered.connect(partial(self.load_form, form))
yield action
formpicker = PickActionDialog(msg="Select data entry form")
formpicker.addactions(actions())
formpicker.exec_()
def project_loaded(self, project):
self.project = project
self.actionPan.trigger()
try:
firstform = project.forms[0]
self.load_form(firstform)
self.dataentryselection.setVisible(True)
except IndexError:
self.dataentryselection.setVisible(False)
# Enable the raster layers button only if the project contains a raster layer.
layers = QgsMapLayerRegistry.instance().mapLayers().values()
hasrasters = any(layer.type() == QgsMapLayer.RasterLayer
for layer in layers)
self.actionRaster.setEnabled(hasrasters)
self.defaultextent = self.canvas.extent()
roam.utils.info("Extent: {}".format(self.defaultextent.toString()))
self.infoTool.selectionlayers = project.selectlayersmapping()
self.canvas.freeze(False)
self.canvas.refresh()
def setMapTool(self, tool, *args):
self.canvas.setMapTool(tool)
def connectButtons(self):
def connectAction(action, tool):
action.toggled.connect(partial(self.setMapTool, tool))
def cursor(name):
pix = QPixmap(name)
pix = pix.scaled(QSize(24, 24))
return QCursor(pix)
self.zoomInTool = QgsMapToolZoom(self.canvas, False)
self.zoomOutTool = QgsMapToolZoom(self.canvas, True)
self.panTool = PanTool(self.canvas)
self.infoTool = InfoTool(self.canvas)
connectAction(self.actionZoom_In, self.zoomInTool)
connectAction(self.actionZoom_Out, self.zoomOutTool)
connectAction(self.actionPan, self.panTool)
connectAction(self.actionInfo, self.infoTool)
self.zoomInTool.setCursor(cursor(':/icons/in'))
self.zoomOutTool.setCursor(cursor(':/icons/out'))
self.infoTool.setCursor(cursor(':/icons/info'))
self.actionRaster.triggered.connect(self.toggleRasterLayers)
self.infoTool.infoResults.connect(RoamEvents.selectionchanged.emit)
self.actionHome.triggered.connect(self.homeview)
def homeview(self):
"""
Zoom the mapview canvas to the extents the project was opened at i.e. the
default extent.
"""
self.canvas.setExtent(self.defaultextent)
self.canvas.refresh()
def load_form(self, form):
self.clearCapatureTools()
self.dataentryselection.setIcon(QIcon(form.icon))
self.dataentryselection.setText(form.icontext)
self.create_capture_buttons(form)
def create_capture_buttons(self, form):
tool = form.getMaptool()(self.canvas)
for action in tool.actions:
# Create the action here.
if action.ismaptool:
action.toggled.connect(partial(self.setMapTool, tool))
# Set the action as a data entry button so we can remove it later.
action.setProperty("dataentry", True)
self.editgroup.addAction(action)
self.layerbuttons.append(action)
self.projecttoolbar.insertAction(self.topspaceraction, action)
action.setChecked(action.isdefault)
if hasattr(tool, 'geometryComplete'):
add = partial(self.add_new_feature, form)
tool.geometryComplete.connect(add)
else:
tool.finished.connect(self.openForm)
tool.error.connect(partial(self.showUIMessage, form.label))
def add_new_feature(self, form, geometry):
"""
Add a new new feature to the given layer
"""
# TODO Extract into function.
# NOTE This function is doing too much, acts as add and also edit.
layer = form.QGISLayer
if layer.geometryType() in [
QGis.WKBMultiLineString, QGis.WKBMultiPoint,
QGis.WKBMultiPolygon
]:
geometry.convertToMultiType()
try:
form, feature = self.editfeaturestack.pop()
self.editfeaturegeometry(form, feature, newgeometry=geometry)
return
except IndexError:
pass
layer = form.QGISLayer
fields = layer.pendingFields()
feature = QgsFeature(fields)
feature.setGeometry(geometry)
for index in xrange(fields.count()):
pkindexes = layer.dataProvider().pkAttributeIndexes()
if index in pkindexes and layer.dataProvider().name(
) == 'spatialite':
continue
value = layer.dataProvider().defaultValue(index)
feature[index] = value
RoamEvents.open_feature_form(form, feature, editmode=False)
def editfeaturegeometry(self, form, feature, newgeometry):
# TODO Extract into function.
layer = form.QGISLayer
layer.startEditing()
feature.setGeometry(newgeometry)
layer.updateFeature(feature)
saved = layer.commitChanges()
if not saved:
map(roam.utils.error, layer.commitErrors())
self.canvas.refresh()
self.currentfeatureband.setToGeometry(feature.geometry(), layer)
RoamEvents.editgeometry_complete.emit(form, feature)
def clearCapatureTools(self):
captureselected = False
for action in self.projecttoolbar.actions():
if action.objectName() == "capture" and action.isChecked():
captureselected = True
if action.property('dataentry'):
self.projecttoolbar.removeAction(action)
return captureselected
def toggleRasterLayers(self):
"""
Toggle all raster layers on or off.
"""
if not self.canvaslayers:
return
#Freeze the canvas to save on UI refresh
self.canvas.freeze()
for layer in self.canvaslayers:
if layer.layer().type() == QgsMapLayer.RasterLayer:
layer.setVisible(not layer.isVisible())
# Really!? We have to reload the whole layer set every time?
# WAT?
self.canvas.setLayerSet(self.canvaslayers)
self.canvas.freeze(False)
self.canvas.refresh()
def cleanup(self):
self.gpsband.reset()
self.gpsband.hide()
self.clear_selection()
self.clear_temp_objects()
self.clearCapatureTools()
self.canvas.freeze()
self.canvas.clear()
self.canvas.freeze(False)
for action in self.layerbuttons:
self.editgroup.removeAction(action)
class MainWindow(mainwindow_widget, mainwindow_base):
"""
Main application window
"""
def __init__(self, settings):
super(MainWindow, self).__init__()
self.setupUi(self)
self.settings = settings
roam.featureform.settings = settings.settings
self.canvaslayers = []
self.layerbuttons = []
self.project = None
self.selectionbands = defaultdict(partial(QgsRubberBand, self.canvas))
self.canvas.setCanvasColor(Qt.white)
self.canvas.enableAntiAliasing(True)
self.canvas.setWheelAction(QgsMapCanvas.WheelZoomToMouseCursor)
self.bar = roam.messagebaritems.MessageBar(self)
self.actionMap.setVisible(False)
pal = QgsPalLabeling()
self.canvas.mapRenderer().setLabelingEngine(pal)
self.canvas.setFrameStyle(QFrame.NoFrame)
self.menuGroup = QActionGroup(self)
self.menuGroup.setExclusive(True)
self.menuGroup.addAction(self.actionMap)
self.menuGroup.addAction(self.actionDataEntry)
self.menuGroup.addAction(self.actionProject)
self.menuGroup.addAction(self.actionSync)
self.menuGroup.addAction(self.actionSettings)
self.menuGroup.triggered.connect(self.updatePage)
self.editgroup = QActionGroup(self)
self.editgroup.setExclusive(True)
self.editgroup.addAction(self.actionPan)
self.editgroup.addAction(self.actionZoom_In)
self.editgroup.addAction(self.actionZoom_Out)
self.editgroup.addAction(self.actionInfo)
#TODO Extract GPS out into a service and remove UI stuff
self.actionGPS = GPSAction(":/icons/gps", self.canvas, self.settings, self)
self.projecttoolbar.addAction(self.actionGPS)
self.projectwidget = ProjectsWidget(self)
self.projectwidget.requestOpenProject.connect(self.loadProject)
QgsProject.instance().readProject.connect(self._readProject)
self.project_page.layout().addWidget(self.projectwidget)
self.syncwidget = SyncWidget()
self.syncpage.layout().addWidget(self.syncwidget)
self.settingswidget = SettingsWidget(settings, self)
self.settings_page.layout().addWidget(self.settingswidget)
self.actionSettings.toggled.connect(self.settingswidget.populateControls)
self.actionSettings.toggled.connect(self.settingswidget.readSettings)
self.settingswidget.settingsupdated.connect(self.settingsupdated)
self.dataentrywidget = DataEntryWidget(self.canvas, self.bar)
self.widgetpage.layout().addWidget(self.dataentrywidget)
self.dataentrywidget.rejected.connect(self.formrejected)
self.dataentrywidget.featuresaved.connect(self.featureSaved)
self.dataentrywidget.featuredeleted.connect(self.featuredeleted)
self.dataentrywidget.failedsave.connect(self.failSave)
self.dataentrywidget.helprequest.connect(self.showhelp)
self.dataentrywidget.openimage.connect(self.openimage)
def createSpacer(width=0, height=0):
widget = QWidget()
widget.setMinimumWidth(width)
widget.setMinimumHeight(height)
return widget
gpsspacewidget = createSpacer(30)
sidespacewidget = createSpacer(30)
sidespacewidget2 = createSpacer(height=20)
sidespacewidget.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
sidespacewidget2.setSizePolicy(QSizePolicy.Fixed, QSizePolicy.Fixed)
gpsspacewidget.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
self.topspaceraction = self.projecttoolbar.insertWidget(self.actionGPS, gpsspacewidget)
def createlabel(text):
style = """
QLabel {
color: #706565;
font: 14px "Calibri" ;
}"""
label = QLabel(text)
label.setStyleSheet(style)
return label
self.projectlabel = createlabel("Project: {project}")
self.userlabel = createlabel("User: {user}".format(user=getpass.getuser()))
self.positionlabel = createlabel('')
self.statusbar.addWidget(self.projectlabel)
self.statusbar.addWidget(self.userlabel)
spacer = createSpacer()
spacer.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Fixed)
self.statusbar.addWidget(spacer)
self.statusbar.addWidget(self.positionlabel)
self.menutoolbar.insertWidget(self.actionQuit, sidespacewidget2)
self.menutoolbar.insertWidget(self.actionProject, sidespacewidget)
self.stackedWidget.currentChanged.connect(self.updateUIState)
self.panels = []
self.connectButtons()
self.band = QgsRubberBand(self.canvas)
self.band.setIconSize(20)
self.band.setWidth(10)
self.band.setColor(QColor(186, 93, 212, 76))
self.canvas_page.layout().insertWidget(0, self.projecttoolbar)
self.dataentrymodel = QStandardItemModel(self)
self.dataentrycombo = QComboBox(self.projecttoolbar)
self.dataentrycombo.setIconSize(QSize(48,48))
self.dataentrycombo.setSizePolicy(QSizePolicy.Preferred, QSizePolicy.Expanding)
self.dataentrycombo.setSizeAdjustPolicy(QComboBox.AdjustToContents)
self.dataentrycombo.setModel(self.dataentrymodel)
self.dataentrycomboaction = self.projecttoolbar.insertWidget(self.topspaceraction, self.dataentrycombo)
self.dataentrycombo.showPopup = self.selectdataentry
self.biglist = BigList(self.canvas)
self.biglist.setlabel("Select data entry form")
self.biglist.setmodel(self.dataentrymodel)
self.biglist.itemselected.connect(self.dataentrychanged)
self.biglist.hide()
self.centralwidget.layout().addWidget(self.statusbar)
self.actionGPSFeature.setProperty('dataentry', True)
self.infodock = InfoDock(self.canvas)
self.infodock.requestopenform.connect(self.openForm)
self.infodock.featureupdated.connect(self.highlightfeature)
self.infodock.resultscleared.connect(self.clearselection)
self.infodock.openurl.connect(self.viewurl)
self.infodock.hide()
self.hidedataentry()
self.canvas.extentsChanged.connect(self.updatestatuslabel)
self.projecttoolbar.toolButtonStyleChanged.connect(self.updatecombo)
def selectdataentry(self, ):
if self.dataentrycombo.count() == 0:
return
self.biglist.show()
def viewurl(self, url):
"""
Open a URL in Roam
:param url:
:return:
"""
key = url.toString().lstrip('file://')
try:
# Hack. Eww fix me.
data, imagetype = roam.htmlviewer.images[os.path.basename(key)]
except KeyError:
# It's not a image so lets just pass it of as a normal
# URL
QDesktopServices.openUrl(url)
return
pix = QPixmap()
if imagetype == 'base64':
pix.loadFromData(data)
else:
pix.load(data)
self.openimage(pix)
def openimage(self, pixmap):
viewer = ImageViewer(self.stackedWidget)
viewer.resize(self.stackedWidget.size())
viewer.openimage(pixmap)
def updatecombo(self, *args):
self.dataentrycombo.setMinimumHeight(0)
def settingsupdated(self, settings):
settings.save()
self.show()
self.actionGPS.updateGPSPort()
# eww!
roam.featureform.settings = settings.settings
def updatestatuslabel(self):
extent = self.canvas.extent()
self.positionlabel.setText("Map Center: {}".format(extent.center().toString()))
def highlightselection(self, results):
for layer, features in results.iteritems():
band = self.selectionbands[layer]
band.setColor(QColor(255, 0, 0, 150))
band.setIconSize(20)
band.setWidth(2)
band.setBrushStyle(Qt.NoBrush)
band.reset(layer.geometryType())
for feature in features:
band.addGeometry(feature.geometry(), layer)
def clearselection(self):
# Clear the main selection rubber band
self.band.reset()
# Clear the rest
for band in self.selectionbands.itervalues():
band.reset()
def highlightfeature(self, layer, feature, features):
self.clearselection()
self.highlightselection({layer: features})
self.band.setToGeometry(feature.geometry(), layer)
def showmap(self):
self.actionMap.setVisible(True)
self.actionMap.trigger()
def hidedataentry(self):
self.actionDataEntry.setVisible(False)
def showdataentry(self):
self.actionDataEntry.setVisible(True)
self.actionDataEntry.trigger()
def dataentrychanged(self, index):
wasactive = self.clearCapatureTools()
if not index.isValid():
return
modelindex = index
# modelindex = self.dataentrymodel.index(index, 0)
form = modelindex.data(Qt.UserRole + 1)
self.dataentrycombo.setCurrentIndex(index.row())
self.createCaptureButtons(form, wasactive)
def raiseerror(self, *exinfo):
info = traceback.format_exception(*exinfo)
item = self.bar.pushError('Seems something has gone wrong. Press for more details',
info)
def setMapTool(self, tool, *args):
self.canvas.setMapTool(tool)
def homeview(self):
"""
Zoom the mapview canvas to the extents the project was opened at i.e. the
default extent.
"""
self.canvas.setExtent(self.defaultextent)
self.canvas.refresh()
def connectButtons(self):
def connectAction(action, tool):
action.toggled.connect(partial(self.setMapTool, tool))
def cursor(name):
pix = QPixmap(name)
pix = pix.scaled(QSize(24,24))
return QCursor(pix)
self.zoomInTool = QgsMapToolZoom(self.canvas, False)
self.zoomOutTool = QgsMapToolZoom(self.canvas, True)
self.panTool = TouchMapTool(self.canvas)
self.moveTool = MoveTool(self.canvas, [])
self.infoTool = InfoTool(self.canvas)
connectAction(self.actionZoom_In, self.zoomInTool)
connectAction(self.actionZoom_Out, self.zoomOutTool)
connectAction(self.actionPan, self.panTool)
connectAction(self.actionMove, self.moveTool)
connectAction(self.actionInfo, self.infoTool)
self.zoomInTool.setCursor(cursor(':/icons/in'))
self.zoomOutTool.setCursor(cursor(':/icons/out'))
self.infoTool.setCursor(cursor(':/icons/info'))
self.actionRaster.triggered.connect(self.toggleRasterLayers)
self.infoTool.infoResults.connect(self.showInfoResults)
# The edit toolbutton is currently not being used but leaving it for feature.
self.moveTool.layersupdated.connect(self.actionMove.setEnabled)
self.moveTool.layersupdated.connect(self.actionEdit_Tools.setEnabled)
self.actionGPSFeature.triggered.connect(self.addFeatureAtGPS)
self.actionGPSFeature.setEnabled(self.actionGPS.isConnected)
self.actionGPS.gpsfixed.connect(self.actionGPSFeature.setEnabled)
self.actionHome.triggered.connect(self.homeview)
self.actionQuit.triggered.connect(self.exit)
def showToolError(self, label, message):
self.bar.pushMessage(label, message, QgsMessageBar.WARNING)
def clearCapatureTools(self):
captureselected = False
for action in self.projecttoolbar.actions():
if action.objectName() == "capture" and action.isChecked():
captureselected = True
if action.property('dataentry'):
self.projecttoolbar.removeAction(action)
return captureselected
def createCaptureButtons(self, form, wasselected):
tool = form.getMaptool()(self.canvas)
for action in tool.actions:
# Create the action here.
if action.ismaptool:
action.toggled.connect(partial(self.setMapTool, tool))
# Set the action as a data entry button so we can remove it later.
action.setProperty("dataentry", True)
self.editgroup.addAction(action)
self.layerbuttons.append(action)
self.projecttoolbar.insertAction(self.topspaceraction, action)
if action.isdefault:
action.setChecked(wasselected)
if hasattr(tool, 'geometryComplete'):
add = partial(self.addNewFeature, form)
tool.geometryComplete.connect(add)
else:
tool.finished.connect(self.openForm)
tool.error.connect(partial(self.showToolError, form.label))
self.projecttoolbar.insertAction(self.topspaceraction, self.actionGPSFeature)
self.actionGPSFeature.setVisible(not tool.isEditTool())
def createFormButtons(self, forms):
"""
Create buttons for each form that is defined
"""
self.dataentrymodel.clear()
self.clearCapatureTools()
def captureFeature(form):
item = QStandardItem(QIcon(form.icon), form.icontext)
item.setData(form, Qt.UserRole + 1)
item.setSizeHint(QSize(item.sizeHint().width(), self.projecttoolbar.height()))
self.dataentrymodel.appendRow(item)
capabilitityhandlers = {"capture": captureFeature}
failedforms = []
for form in forms:
valid, reasons = form.valid
if not valid:
roam.utils.log("Form is invalid for data entry because {}".format(reasons))
failedforms.append((form, reasons))
continue
for capability in form.capabilities:
try:
capabilitityhandlers[capability](form)
except KeyError:
# Just ignore capabilities we don't support yet.
continue
if failedforms:
for form, reasons in failedforms:
html = "<h3>{}</h3><br>{}".format(form.label,
"<br>".join(reasons))
self.bar.pushMessage("Form errors",
"Looks like some forms couldn't be loaded",
level=QgsMessageBar.WARNING, extrainfo=html)
visible = self.dataentrymodel.rowCount() > 0
self.dataentrycomboaction.setVisible(visible)
self.dataentrycombo.setMinimumHeight(self.projecttoolbar.height())
index = self.dataentrymodel.index(0, 0)
self.dataentrychanged(index)
def addFeatureAtGPS(self):
"""
Add a record at the current GPS location.
"""
index = self.dataentrycombo.currentIndex()
modelindex = self.dataentrymodel.index(index, 0)
form = modelindex.data(Qt.UserRole + 1)
point = self.actionGPS.position
point = QgsGeometry.fromPoint(point)
self.addNewFeature(form=form, geometry=point)
def clearToolRubberBand(self):
"""
Clear the rubber band of the active tool if it has one
"""
tool = self.canvas.mapTool()
try:
tool.clearBand()
except AttributeError:
# No clearBand method found, but that's cool.
pass
def showhelp(self, url):
help = HelpPage(self.stackedWidget)
help.setHelpPage(url)
help.show()
def dataentryfinished(self):
self.hidedataentry()
self.showmap()
self.cleartempobjects()
self.infodock.refreshcurrent()
def featuredeleted(self):
self.dataentryfinished()
self.bar.pushMessage("Deleted", "Feature Deleted", QgsMessageBar.INFO, 1)
self.canvas.refresh()
def featureSaved(self):
self.dataentryfinished()
self.canvas.refresh()
def failSave(self, messages):
self.bar.pushError("Error when saving changes.", messages)
def cleartempobjects(self):
self.band.reset()
self.clearToolRubberBand()
def formrejected(self, message, level):
self.dataentryfinished()
if message:
self.bar.pushMessage("Form Message", message, level, duration=2)
self.cleartempobjects()
def openForm(self, form, feature):
"""
Open the form that is assigned to the layer
"""
self.band.setToGeometry(feature.geometry(), form.QGISLayer)
self.showdataentry()
self.dataentrywidget.openform(feature=feature, form=form, project=self.project)
def addNewFeature(self, form, geometry):
"""
Add a new new feature to the given layer
"""
layer = form.QGISLayer
fields = layer.pendingFields()
feature = QgsFeature(fields)
feature.setGeometry(geometry)
for index in xrange(fields.count()):
pkindexes = layer.dataProvider().pkAttributeIndexes()
if index in pkindexes and layer.dataProvider().name() == 'spatialite':
continue
value = layer.dataProvider().defaultValue(index)
feature[index] = value
self.openForm(form, feature)
def exit(self):
"""
Exit the application.
"""
QApplication.exit(0)
def showInfoResults(self, results):
self.infodock.clearResults()
forms = {}
for layer in results.keys():
layername = layer.name()
if not layername in forms:
forms[layername] = list(self.project.formsforlayer(layername))
self.infodock.setResults(results, forms)
self.infodock.show()
def toggleRasterLayers(self):
"""
Toggle all raster layers on or off.
"""
if not self.canvaslayers:
return
#Freeze the canvas to save on UI refresh
self.canvas.freeze()
for layer in self.canvaslayers:
if layer.layer().type() == QgsMapLayer.RasterLayer:
layer.setVisible(not layer.isVisible())
# Really!? We have to reload the whole layer set every time?
# WAT?
self.canvas.setLayerSet(self.canvaslayers)
self.canvas.freeze(False)
self.canvas.refresh()
def missingLayers(self, layers):
"""
Called when layers have failed to load from the current project
"""
roam.utils.warning("Missing layers")
map(roam.utils.warning, layers)
missinglayers = roam.messagebaritems.MissingLayerItem(layers,
parent=self.bar)
self.bar.pushItem(missinglayers)
def loadprojects(self, projects):
"""
Load the given projects into the project
list
"""
projects = list(projects)
self.projectwidget.loadProjectList(projects)
self.syncwidget.loadprojects(projects)
def updatePage(self, action):
"""
Update the current stack page based on the current selected
action
"""
page = action.property("page")
self.stackedWidget.setCurrentIndex(page)
def show(self):
"""
Override show method. Handles showing the app in fullscreen
mode or just maximized
"""
fullscreen = self.settings.settings.get("fullscreen", False)
if fullscreen:
self.showFullScreen()
else:
self.showMaximized()
def viewprojects(self):
self.stackedWidget.setCurrentIndex(1)
def updateUIState(self, page):
"""
Update the UI state to reflect the currently selected
page in the stacked widget
"""
pass
@roam.utils.timeit
def _readProject(self, doc):
"""
readProject is called by QgsProject once the map layer has been
populated with all the layers
"""
parser = ProjectParser(doc)
canvasnode = parser.canvasnode
self.canvas.freeze()
self.canvas.mapRenderer().readXML(canvasnode)
self.canvaslayers = parser.canvaslayers()
self.canvas.setLayerSet(self.canvaslayers)
self.canvas.updateScale()
self.projectOpened()
self.canvas.freeze(False)
self.canvas.refresh()
self.showmap()
@roam.utils.timeit
def projectOpened(self):
"""
Called when a new project is opened in QGIS.
"""
projectpath = QgsProject.instance().fileName()
self.project = Project.from_folder(os.path.dirname(projectpath))
self.projectlabel.setText("Project: {}".format(self.project.name))
self.createFormButtons(forms=self.project.forms)
# Enable the raster layers button only if the project contains a raster layer.
layers = QgsMapLayerRegistry.instance().mapLayers().values()
hasrasters = any(layer.type() == QgsMapLayer.RasterLayer for layer in layers)
self.actionRaster.setEnabled(hasrasters)
self.defaultextent = self.canvas.extent()
roam.utils.info("Extent: {}".format(self.defaultextent.toString()))
# Show panels
for panel in self.project.getPanels():
self.mainwindow.addDockWidget(Qt.BottomDockWidgetArea, panel)
self.panels.append(panel)
# TODO Abstract this out
if not self.project.selectlayers:
selectionlayers = QgsMapLayerRegistry.instance().mapLayers().values()
else:
selectionlayers = []
for layername in self.project.selectlayers:
try:
layer = QgsMapLayerRegistry.instance().mapLayersByName(layername)[0]
except IndexError:
roam.utils.warning("Can't find QGIS layer for select layer {}".format(layername))
continue
selectionlayers.append(layer)
self.infoTool.selectionlayers = selectionlayers
self.actionPan.trigger()
#noinspection PyArgumentList
@roam.utils.timeit
def loadProject(self, project):
"""
Load a project into the application .
"""
roam.utils.log(project)
roam.utils.log(project.name)
roam.utils.log(project.projectfile)
roam.utils.log(project.valid)
(passed, message) = project.onProjectLoad()
if not passed:
self.bar.pushMessage("Project load rejected", "Sorry this project couldn't"
"be loaded. Click for me details.",
QgsMessageBar.WARNING, extrainfo=message)
return
self.actionMap.trigger()
self.closeProject()
self.canvas.refresh()
self.canvas.repaint()
self.infodock.clearResults()
# No idea why we have to set this each time. Maybe QGIS deletes it for
# some reason.
self.badLayerHandler = BadLayerHandler(callback=self.missingLayers)
QgsProject.instance().setBadLayerHandler(self.badLayerHandler)
self.stackedWidget.setCurrentIndex(3)
self.projectloading_label.setText("Project {} Loading".format(project.name))
pixmap = QPixmap(project.splash)
w = self.projectimage.width()
h = self.projectimage.height()
self.projectimage.setPixmap(pixmap.scaled(w,h, Qt.KeepAspectRatio))
QApplication.processEvents()
QDir.setCurrent(os.path.dirname(project.projectfile))
fileinfo = QFileInfo(project.projectfile)
QgsProject.instance().read(fileinfo)
def closeProject(self):
"""
Close the current open project
"""
self.canvas.freeze()
QgsMapLayerRegistry.instance().removeAllMapLayers()
self.canvas.clear()
self.canvas.freeze(False)
for panel in self.panels:
self.removeDockWidget(panel)
del panel
# Remove all the old buttons
for action in self.layerbuttons:
self.editgroup.removeAction(action)
self.dataentrymodel.clear()
self.panels = []
self.project = None
self.dataentrywidget.clear()
self.hidedataentry()
self.infodock.close()
class MainWindow(ui_mainwindow.Ui_MainWindow, QMainWindow):
"""
Main application window
"""
def __init__(self):
super(MainWindow, self).__init__()
self.setupUi(self)
self.canvaslayers = []
self.layerbuttons = []
self.project = None
self.selectionbands = defaultdict(partial(QgsRubberBand, self.canvas))
self.canvas.setCanvasColor(Qt.white)
self.canvas.enableAntiAliasing(True)
self.canvas.setWheelAction(QgsMapCanvas.WheelZoomToMouseCursor)
self.bar = roam.messagebaritems.MessageBar(self.centralwidget)
self.actionMap.setVisible(False)
self.actionLegend.setVisible(False)
pal = QgsPalLabeling()
self.canvas.mapRenderer().setLabelingEngine(pal)
self.canvas.setFrameStyle(QFrame.NoFrame)
self.menuGroup = QActionGroup(self)
self.menuGroup.setExclusive(True)
self.menuGroup.addAction(self.actionMap)
self.menuGroup.addAction(self.actionDataEntry)
self.menuGroup.addAction(self.actionLegend)
self.menuGroup.addAction(self.actionProject)
self.menuGroup.addAction(self.actionSync)
self.menuGroup.addAction(self.actionSettings)
self.menuGroup.addAction(self.actionGPS)
self.menuGroup.triggered.connect(self.updatePage)
self.editgroup = QActionGroup(self)
self.editgroup.setExclusive(True)
self.editgroup.addAction(self.actionPan)
self.editgroup.addAction(self.actionZoom_In)
self.editgroup.addAction(self.actionZoom_Out)
self.editgroup.addAction(self.actionInfo)
self.actionLegend.triggered.connect(self.updatelegend)
self.actionGPS = GPSAction(":/icons/gps", self.canvas, self)
self.projecttoolbar.addAction(self.actionGPS)
self.projectwidget.requestOpenProject.connect(self.loadProject)
QgsProject.instance().readProject.connect(self._readProject)
self.gpswidget.setgps(GPS)
self.actionSettings.toggled.connect(self.settingswidget.populateControls)
self.actionSettings.toggled.connect(self.settingswidget.readSettings)
self.settingswidget.settingsupdated.connect(self.settingsupdated)
self.dataentrywidget = DataEntryWidget(self.canvas, self.bar)
self.widgetpage.layout().addWidget(self.dataentrywidget)
self.dataentrywidget.rejected.connect(self.formrejected)
self.dataentrywidget.featuresaved.connect(self.featureSaved)
self.dataentrywidget.featuredeleted.connect(self.featuredeleted)
self.dataentrywidget.failedsave.connect(self.failSave)
self.dataentrywidget.helprequest.connect(self.showhelp)
def createSpacer(width=0, height=0):
widget = QWidget()
widget.setMinimumWidth(width)
widget.setMinimumHeight(height)
return widget
gpsspacewidget = createSpacer(30)
sidespacewidget = createSpacer(30)
sidespacewidget2 = createSpacer(height=20)
sidespacewidget.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
sidespacewidget2.setSizePolicy(QSizePolicy.Fixed, QSizePolicy.Fixed)
gpsspacewidget.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
self.topspaceraction = self.projecttoolbar.insertWidget(self.actionGPS, gpsspacewidget)
def createlabel(text):
style = """
QLabel {
color: #706565;
font: 14px "Calibri" ;
}"""
label = QLabel(text)
label.setStyleSheet(style)
return label
self.projectlabel = createlabel("Project: {project}")
self.userlabel = createlabel("User: {user}".format(user=getpass.getuser()))
self.positionlabel = createlabel('')
self.gpslabel = createlabel("GPS: Not active")
self.statusbar.addWidget(self.projectlabel)
self.statusbar.addWidget(self.userlabel)
spacer = createSpacer()
spacer2 = createSpacer()
spacer.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Fixed)
spacer2.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Fixed)
self.statusbar.addWidget(spacer)
self.statusbar.addWidget(self.positionlabel)
self.statusbar.addWidget(spacer2)
self.statusbar.addWidget(self.gpslabel)
self.menutoolbar.insertWidget(self.actionQuit, sidespacewidget2)
self.menutoolbar.insertWidget(self.actionProject, sidespacewidget)
self.panels = []
self.connectButtons()
self.currentfeatureband = QgsRubberBand(self.canvas)
self.currentfeatureband.setIconSize(20)
self.currentfeatureband.setWidth(10)
self.currentfeatureband.setColor(QColor(186, 93, 212, 76))
self.canvas_page.layout().insertWidget(0, self.projecttoolbar)
self.dataentryselection = QAction(self.projecttoolbar)
self.dataentryaction = self.projecttoolbar.insertAction(self.topspaceraction, self.dataentryselection)
self.dataentryselection.triggered.connect(self.selectdataentry)
self.centralwidget.layout().addWidget(self.statusbar)
self.actionGPSFeature.setProperty('dataentry', True)
self.infodock = InfoDock(self.canvas)
self.infodock.featureupdated.connect(self.highlightfeature)
self.infodock.hide()
self.hidedataentry()
self.canvas.extentsChanged.connect(self.updatestatuslabel)
RoamEvents.openimage.connect(self.openimage)
RoamEvents.openurl.connect(self.viewurl)
RoamEvents.openfeatureform.connect(self.openForm)
RoamEvents.openkeyboard.connect(self.openkeyboard)
RoamEvents.selectioncleared.connect(self.clearselection)
RoamEvents.editgeometry.connect(self.addforedit)
RoamEvents.editgeometry_complete.connect(self.on_geometryedit)
RoamEvents.onShowMessage.connect(self.showUIMessage)
RoamEvents.selectionchanged.connect(self.highlightselection)
RoamEvents.selectionchanged.connect(self.showInfoResults)
GPS.gpspostion.connect(self.updatecanvasfromgps)
GPS.firstfix.connect(self.gpsfirstfix)
GPS.gpsdisconnected.connect(self.gpsdisconnected)
self.lastgpsposition = None
self.marker = GPSMarker(self.canvas)
self.marker.hide()
self.legendpage.showmap.connect(self.showmap)
self.editfeaturestack = []
self.currentselection = {}
def showUIMessage(self, label, message, level=QgsMessageBar.INFO, time=0, extra=''):
self.bar.pushMessage(label, message, level, duration=time, extrainfo=extra)
def addforedit(self, form, feature):
self.editfeaturestack.append((form, feature))
self.loadform(form)
actions = self.getcaptureactions()
for action in actions:
if action.isdefault:
action.trigger()
break
def updatelegend(self):
self.legendpage.updatecanvas(self.canvas)
def gpsfirstfix(self, postion, gpsinfo):
zoomtolocation = roam.config.settings.get('gpszoomonfix', True)
if zoomtolocation:
self.canvas.zoomScale(1000)
def updatecanvasfromgps(self, position, gpsinfo):
# Recenter map if we go outside of the 95% of the area
if not self.lastgpsposition == position:
self.lastposition = position
rect = QgsRectangle(position, position)
extentlimt = QgsRectangle(self.canvas.extent())
extentlimt.scale(0.95)
if not extentlimt.contains(position):
self.canvas.setExtent(rect)
self.canvas.refresh()
self.marker.show()
self.marker.setCenter(position)
self.gpslabel.setText("GPS: PDOP {} HDOP {} VDOP {}".format(gpsinfo.pdop,
gpsinfo.hdop,
gpsinfo.vdop))
def gpsdisconnected(self):
self.marker.hide()
self.gpslabel.setText("GPS Not Active")
def openkeyboard(self):
if not roam.config.settings.get('keyboard', True):
return
if sys.platform == 'win32':
try:
programfiles = os.environ['ProgramW6432']
except KeyError:
programfiles = os.environ['ProgramFiles']
cmd = r'{path}\Common Files\Microsoft Shared\ink\TabTip.exe'.format(path=programfiles)
try:
os.startfile(cmd)
except WindowsError:
roam.config.settings['keyboard'] = False
roam.config.save()
else:
cmd = 'onboard'
Popen(cmd)
def selectdataentry(self):
forms = self.project.forms
formpicker = PickActionDialog(msg="Select data entry form")
for form in forms:
action = form.createuiaction()
valid, failreasons = form.valid
if not valid:
roam.utils.warning("Form {} failed to load".format(form.label))
roam.utils.warning("Reasons {}".format(failreasons))
action.triggered.connect(partial(self.showformerror, form))
else:
action.triggered.connect(partial(self.loadform, form))
formpicker.addAction(action)
formpicker.exec_()
def showformerror(self, form):
pass
def viewurl(self, url):
"""
Open a URL in Roam
:param url:
:return:
"""
key = url.toString().lstrip('file://')
try:
# Hack. Eww fix me.
data, imagetype = roam.htmlviewer.images[os.path.basename(key)]
pix = QPixmap()
if imagetype == 'base64':
pix.loadFromData(data)
else:
pix.load(data)
self.openimage(pix)
except KeyError:
pix = QPixmap()
pix.load(key)
if pix.isNull():
QDesktopServices.openUrl(url)
return
self.openimage(pix)
def openimage(self, pixmap):
viewer = ImageViewer(self.stackedWidget)
viewer.resize(self.stackedWidget.size())
viewer.openimage(pixmap)
def settingsupdated(self, settings):
self.show()
self.actionGPS.updateGPSPort()
def updatestatuslabel(self):
extent = self.canvas.extent()
self.positionlabel.setText("Map Center: {}".format(extent.center().toString()))
def on_geometryedit(self, form, feature):
layer = form.QGISLayer
self.reloadselection(layer, updated=[feature])
self.currentfeatureband.setToGeometry(feature.geometry(), layer)
def reloadselection(self, layer, deleted=[], updated=[]):
"""
Reload the selection after features have been updated or deleted.
:param layer:
:param deleted:
:param updated:
:return:
"""
selectedfeatures = self.currentselection[layer]
# Update any features that have changed.
for updatedfeature in updated:
oldfeatures = [f for f in selectedfeatures if f.id() == updatedfeature.id()]
for feature in oldfeatures:
self.currentselection[layer].remove(feature)
self.currentselection[layer].append(updatedfeature)
# Delete any old ones
for deletedid in deleted:
oldfeatures = [f for f in selectedfeatures if f.id() == deletedid]
for feature in oldfeatures:
self.currentselection[layer].remove(feature)
RoamEvents.selectionchanged.emit(self.currentselection)
def highlightselection(self, results):
self.clearselection()
for layer, features in results.iteritems():
band = self.selectionbands[layer]
band.setColor(QColor(255, 0, 0, 200))
band.setIconSize(20)
band.setWidth(2)
band.setBrushStyle(Qt.NoBrush)
band.reset(layer.geometryType())
for feature in features:
band.addGeometry(feature.geometry(), layer)
def clearselection(self):
# Clear the main selection rubber band
self.currentfeatureband.reset()
# Clear the rest
for band in self.selectionbands.itervalues():
band.reset()
self.editfeaturestack = []
def highlightfeature(self, layer, feature, features):
self.clearselection()
self.highlightselection({layer: features})
self.currentfeatureband.setToGeometry(feature.geometry(), layer)
def showmap(self):
self.actionMap.setVisible(True)
self.actionLegend.setVisible(True)
self.actionMap.trigger()
def hidedataentry(self):
self.actionDataEntry.setVisible(False)
def showdataentry(self):
self.actionDataEntry.setVisible(True)
self.actionDataEntry.trigger()
def dataentrychanged(self, index):
self.clearCapatureTools()
if not index.isValid():
return
modelindex = index
# modelindex = self.dataentrymodel.index(index, 0)
form = modelindex.data(Qt.UserRole + 1)
self.dataentryselection.setCurrentIndex(index.row())
self.createCaptureButtons(form)
def raiseerror(self, *exinfo):
info = traceback.format_exception(*exinfo)
item = self.bar.pushError(QApplication.translate('MainWindowPy','Seems something has gone wrong. Press for more details', None, QApplication.UnicodeUTF8),
info)
def setMapTool(self, tool, *args):
self.canvas.setMapTool(tool)
def homeview(self):
"""
Zoom the mapview canvas to the extents the project was opened at i.e. the
default extent.
"""
self.canvas.setExtent(self.defaultextent)
self.canvas.refresh()
def connectButtons(self):
def connectAction(action, tool):
action.toggled.connect(partial(self.setMapTool, tool))
def cursor(name):
pix = QPixmap(name)
pix = pix.scaled(QSize(24,24))
return QCursor(pix)
self.zoomInTool = QgsMapToolZoom(self.canvas, False)
self.zoomOutTool = QgsMapToolZoom(self.canvas, True)
self.panTool = PanTool(self.canvas)
self.infoTool = InfoTool(self.canvas)
connectAction(self.actionZoom_In, self.zoomInTool)
connectAction(self.actionZoom_Out, self.zoomOutTool)
connectAction(self.actionPan, self.panTool)
connectAction(self.actionInfo, self.infoTool)
self.zoomInTool.setCursor(cursor(':/icons/in'))
self.zoomOutTool.setCursor(cursor(':/icons/out'))
self.infoTool.setCursor(cursor(':/icons/info'))
self.actionRaster.triggered.connect(self.toggleRasterLayers)
self.infoTool.infoResults.connect(RoamEvents.selectionchanged.emit)
self.actionHome.triggered.connect(self.homeview)
self.actionQuit.triggered.connect(self.exit)
def getcaptureactions(self):
for action in self.projecttoolbar.actions():
if action.property('dataentry'):
yield action
def clearCapatureTools(self):
captureselected = False
for action in self.projecttoolbar.actions():
if action.objectName() == "capture" and action.isChecked():
captureselected = True
if action.property('dataentry'):
self.projecttoolbar.removeAction(action)
return captureselected
def createCaptureButtons(self, form):
tool = form.getMaptool()(self.canvas)
for action in tool.actions:
# Create the action here.
if action.ismaptool:
action.toggled.connect(partial(self.setMapTool, tool))
# Set the action as a data entry button so we can remove it later.
action.setProperty("dataentry", True)
self.editgroup.addAction(action)
self.layerbuttons.append(action)
self.projecttoolbar.insertAction(self.topspaceraction, action)
action.setChecked(action.isdefault)
if hasattr(tool, 'geometryComplete'):
add = partial(self.addNewFeature, form)
tool.geometryComplete.connect(add)
else:
tool.finished.connect(self.openForm)
tool.error.connect(partial(self.showUIMessage, form.label))
def loadform(self, form):
self.clearCapatureTools()
self.dataentryselection.setIcon(QIcon(form.icon))
self.dataentryselection.setText(form.icontext)
self.createCaptureButtons(form)
def clearToolRubberBand(self):
"""
Clear the rubber band of the active tool if it has one
"""
tool = self.canvas.mapTool()
try:
tool.clearBand()
except AttributeError:
# No clearBand method found, but that's cool.
pass
def showhelp(self, url):
help = HelpPage(self.stackedWidget)
help.setHelpPage(url)
help.show()
def dataentryfinished(self):
self.hidedataentry()
self.showmap()
self.cleartempobjects()
self.infodock.refreshcurrent()
def featuredeleted(self, layer, featureid):
self.dataentryfinished()
self.reloadselection(layer, deleted=[featureid])
self.canvas.refresh()
def featureSaved(self):
self.dataentryfinished()
self.canvas.refresh()
def failSave(self, messages):
self.bar.pushError("Error when saving changes.", messages)
def cleartempobjects(self):
self.currentfeatureband.reset()
self.clearToolRubberBand()
def formrejected(self, message, level):
self.dataentryfinished()
if message:
RoamEvents.raisemessage("Form Message", message, level, duration=2)
self.cleartempobjects()
def openForm(self, form, feature, editmode):
"""
Open the form that is assigned to the layer
"""
self.currentfeatureband.setToGeometry(feature.geometry(), form.QGISLayer)
self.showdataentry()
self.dataentrywidget.openform(feature=feature, form=form, project=self.project, editmode=editmode)
def editfeaturegeometry(self, form, feature, newgeometry):
layer = form.QGISLayer
layer.startEditing()
feature.setGeometry(newgeometry)
layer.updateFeature(feature)
saved = layer.commitChanges()
map(roam.utils.error, layer.commitErrors())
self.canvas.refresh()
RoamEvents.editgeometry_complete.emit(form, feature)
def addNewFeature(self, form, geometry):
"""
Add a new new feature to the given layer
"""
layer = form.QGISLayer
if layer.geometryType() in [QGis.WKBMultiLineString, QGis.WKBMultiPoint, QGis.WKBMultiPolygon]:
geometry.convertToMultiType()
try:
form, feature = self.editfeaturestack.pop()
self.editfeaturegeometry(form, feature, newgeometry=geometry)
return
except IndexError:
pass
layer = form.QGISLayer
fields = layer.pendingFields()
feature = QgsFeature(fields)
feature.setGeometry(geometry)
for index in xrange(fields.count()):
pkindexes = layer.dataProvider().pkAttributeIndexes()
if index in pkindexes and layer.dataProvider().name() == 'spatialite':
continue
value = layer.dataProvider().defaultValue(index)
feature[index] = value
self.openForm(form, feature, editmode=False)
def exit(self):
"""
Exit the application.
"""
QApplication.exit(0)
def showInfoResults(self, results):
forms = {}
for layer in results.keys():
layername = layer.name()
if not layername in forms:
forms[layername] = list(self.project.formsforlayer(layername))
self.currentselection = results
self.infodock.setResults(results, forms)
self.infodock.show()
def toggleRasterLayers(self):
"""
Toggle all raster layers on or off.
"""
if not self.canvaslayers:
return
#Freeze the canvas to save on UI refresh
self.canvas.freeze()
for layer in self.canvaslayers:
if layer.layer().type() == QgsMapLayer.RasterLayer:
layer.setVisible(not layer.isVisible())
# Really!? We have to reload the whole layer set every time?
# WAT?
self.canvas.setLayerSet(self.canvaslayers)
self.canvas.freeze(False)
self.canvas.refresh()
def missingLayers(self, layers):
"""
Called when layers have failed to load from the current project
"""
roam.utils.warning("Missing layers")
map(roam.utils.warning, layers)
missinglayers = roam.messagebaritems.MissingLayerItem(layers,
parent=self.bar)
self.bar.pushItem(missinglayers)
def loadprojects(self, projects):
"""
Load the given projects into the project
list
"""
projects = list(projects)
self.projectwidget.loadProjectList(projects)
self.syncwidget.loadprojects(projects)
def updatePage(self, action):
"""
Update the current stack page based on the current selected
action
"""
page = action.property("page")
self.stackedWidget.setCurrentIndex(page)
def show(self):
"""
Override show method. Handles showing the app in fullscreen
mode or just maximized
"""
fullscreen = roam.config.settings.get("fullscreen", False)
if fullscreen:
self.showFullScreen()
else:
self.showMaximized()
def viewprojects(self):
self.stackedWidget.setCurrentIndex(1)
@roam.utils.timeit
def _readProject(self, doc):
"""
readProject is called by QgsProject once the map layer has been
populated with all the layers
"""
parser = ProjectParser(doc)
canvasnode = parser.canvasnode
self.canvas.freeze()
self.canvas.mapRenderer().readXML(canvasnode)
self.canvaslayers = parser.canvaslayers()
self.canvas.setLayerSet(self.canvaslayers)
#red = QgsProject.instance().readNumEntry( "Gui", "/CanvasColorRedPart", 255 )[0];
#green = QgsProject.instance().readNumEntry( "Gui", "/CanvasColorGreenPart", 255 )[0];
#blue = QgsProject.instance().readNumEntry( "Gui", "/CanvasColorBluePart", 255 )[0];
#color = QColor(red, green, blue);
#self.canvas.setCanvasColor(color)
self.canvas.updateScale()
self.projectOpened()
self.canvas.freeze(False)
self.canvas.refresh()
GPS.crs = self.canvas.mapRenderer().destinationCrs()
self.showmap()
@roam.utils.timeit
def projectOpened(self):
"""
Called when a new project is opened in QGIS.
"""
projectpath = QgsProject.instance().fileName()
self.project = Project.from_folder(os.path.dirname(projectpath))
self.projectlabel.setText("Project: {}".format(self.project.name))
try:
firstform = self.project.forms[0]
self.loadform(self.project.forms[0])
self.dataentryselection.setVisible(True)
except IndexError:
self.dataentryselection.setVisible(False)
# Enable the raster layers button only if the project contains a raster layer.
layers = QgsMapLayerRegistry.instance().mapLayers().values()
hasrasters = any(layer.type() == QgsMapLayer.RasterLayer for layer in layers)
self.actionRaster.setEnabled(hasrasters)
self.defaultextent = self.canvas.extent()
roam.utils.info("Extent: {}".format(self.defaultextent.toString()))
# Show panels
for panel in self.project.getPanels():
self.mainwindow.addDockWidget(Qt.BottomDockWidgetArea, panel)
self.panels.append(panel)
self.infoTool.selectionlayers = self.project.selectlayersmapping()
layers = self.project.legendlayersmapping().values()
self.legendpage.updateitems(layers)
self.actionPan.trigger()
#noinspection PyArgumentList
@roam.utils.timeit
def loadProject(self, project):
"""
Load a project into the application .
"""
roam.utils.log(project)
roam.utils.log(project.name)
roam.utils.log(project.projectfile)
roam.utils.log(project.valid)
(passed, message) = project.onProjectLoad()
if not passed:
self.bar.pushMessage("Project load rejected", "Sorry this project couldn't"
"be loaded. Click for me details.",
QgsMessageBar.WARNING, extrainfo=message)
return
self.actionMap.trigger()
self.closeProject()
self.canvas.refresh()
self.canvas.repaint()
RoamEvents.selectioncleared.emit()
# No idea why we have to set this each time. Maybe QGIS deletes it for
# some reason.
self.badLayerHandler = BadLayerHandler(callback=self.missingLayers)
QgsProject.instance().setBadLayerHandler(self.badLayerHandler)
self.stackedWidget.setCurrentIndex(3)
self.projectloading_label.setText("Project {} Loading".format(project.name))
pixmap = QPixmap(project.splash)
w = self.projectimage.width()
h = self.projectimage.height()
self.projectimage.setPixmap(pixmap.scaled(w,h, Qt.KeepAspectRatio))
QApplication.processEvents()
QDir.setCurrent(os.path.dirname(project.projectfile))
fileinfo = QFileInfo(project.projectfile)
QgsProject.instance().read(fileinfo)
def closeProject(self):
"""
Close the current open project
"""
self.clearCapatureTools()
self.canvas.freeze()
QgsMapLayerRegistry.instance().removeAllMapLayers()
self.canvas.clear()
self.canvas.freeze(False)
for panel in self.panels:
self.removeDockWidget(panel)
del panel
# Remove all the old buttons
for action in self.layerbuttons:
self.editgroup.removeAction(action)
self.panels = []
self.project = None
self.dataentrywidget.clear()
self.hidedataentry()
self.infodock.close()
class MapWidget(Ui_CanvasWidget, QMainWindow):
def __init__(self, parent=None):
super(MapWidget, self).__init__(parent)
self.setupUi(self)
self.snapping = True
icon = roam_style.iconsize()
self.projecttoolbar.setIconSize(QSize(icon, icon))
self.current_form = None
self.last_form = None
self.firstshow = True
self.layerbuttons = []
self.editfeaturestack = []
self.lastgpsposition = None
self.project = None
self.gps = None
self.gpslogging = None
self.selectionbands = defaultdict(partial(QgsRubberBand, self.canvas))
self.bridge = QgsLayerTreeMapCanvasBridge(
QgsProject.instance().layerTreeRoot(), self.canvas)
self.bridge.setAutoSetupOnFirstLayer(False)
QgsProject.instance().writeProject.connect(self.bridge.writeProject)
QgsProject.instance().readProject.connect(self.bridge.readProject)
# self.canvas.setInteractive(False)
self.canvas.setCanvasColor(Qt.white)
self.canvas.enableAntiAliasing(True)
self.canvas.setWheelAction(QgsMapCanvas.WheelZoomToMouseCursor)
self.snappingutils = SnappingUtils(self.canvas, self)
self.canvas.setSnappingUtils(self.snappingutils)
QgsProject.instance().readProject.connect(
self.snappingutils.readConfigFromProject)
if hasattr(self.canvas, 'setParallelRenderingEnabled'):
threadcount = QThread.idealThreadCount()
threadcount = 2 if threadcount > 2 else 1
QgsApplication.setMaxThreads(threadcount)
self.canvas.setParallelRenderingEnabled(True)
pal = QgsPalLabeling()
self.canvas.mapRenderer().setLabelingEngine(pal)
self.canvas.setFrameStyle(QFrame.NoFrame)
self.editgroup = QActionGroup(self)
self.editgroup.setExclusive(True)
self.editgroup.addAction(self.actionPan)
self.editgroup.addAction(self.actionZoom_In)
self.editgroup.addAction(self.actionZoom_Out)
self.editgroup.addAction(self.actionInfo)
self.actionGPS = GPSAction(":/icons/gps", self.canvas, self)
self.projecttoolbar.addAction(self.actionGPS)
if roam.config.settings.get('north_arrow', False):
self.northarrow = NorthArrow(":/icons/north", self.canvas)
self.northarrow.setPos(10, 10)
self.canvas.scene().addItem(self.northarrow)
smallmode = roam.config.settings.get("smallmode", False)
self.projecttoolbar.setSmallMode(smallmode)
self.scalebar_enabled = roam.config.settings.get('scale_bar', False)
if self.scalebar_enabled:
self.scalebar = ScaleBarItem(self.canvas)
self.canvas.scene().addItem(self.scalebar)
self.projecttoolbar.setContextMenuPolicy(Qt.CustomContextMenu)
gpsspacewidget = QWidget()
gpsspacewidget.setMinimumWidth(30)
gpsspacewidget.setSizePolicy(QSizePolicy.Expanding,
QSizePolicy.Expanding)
self.topspaceraction = self.projecttoolbar.insertWidget(
self.actionGPS, gpsspacewidget)
self.dataentryselection = QAction(self.projecttoolbar)
self.dataentryaction = self.projecttoolbar.insertAction(
self.topspaceraction, self.dataentryselection)
self.dataentryselection.triggered.connect(self.select_data_entry)
self.marker = GPSMarker(self.canvas)
self.marker.hide()
self.currentfeatureband = CurrentSelection(self.canvas)
self.currentfeatureband.setIconSize(30)
self.currentfeatureband.setWidth(10)
self.currentfeatureband.setColor(QColor(186, 93, 212, 50))
self.currentfeatureband.setOutlineColour(QColor(186, 93, 212))
self.gpsband = QgsRubberBand(self.canvas)
self.gpsband.setColor(QColor(165, 111, 212, 75))
self.gpsband.setWidth(5)
RoamEvents.editgeometry.connect(self.queue_feature_for_edit)
RoamEvents.selectioncleared.connect(self.clear_selection)
RoamEvents.selectionchanged.connect(self.highlight_selection)
RoamEvents.openfeatureform.connect(self.feature_form_loaded)
RoamEvents.sync_complete.connect(self.refresh_map)
RoamEvents.snappingChanged.connect(self.snapping_changed)
self.snappingbutton = QToolButton()
self.snappingbutton.setText("Snapping: On")
self.snappingbutton.setAutoRaise(True)
self.snappingbutton.pressed.connect(self.toggle_snapping)
spacer = QWidget()
spacer2 = QWidget()
spacer.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Fixed)
spacer2.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Fixed)
self.scalewidget = QgsScaleComboBox()
self.scalebutton = QToolButton()
self.scalebutton.setAutoRaise(True)
self.scalebutton.setMaximumHeight(self.statusbar.height())
self.scalebutton.pressed.connect(self.selectscale)
self.scalebutton.setText("Scale")
self.scalelist = BigList(parent=self.canvas,
centeronparent=True,
showsave=False)
self.scalelist.hide()
self.scalelist.setlabel("Map Scale")
self.scalelist.setmodel(self.scalewidget.model())
self.scalelist.closewidget.connect(self.scalelist.close)
self.scalelist.itemselected.connect(self.update_scale_from_item)
self.scalelist.itemselected.connect(self.scalelist.close)
self.positionlabel = QLabel('')
self.gpslabel = QLabel("GPS: Not active")
self.gpslabelposition = QLabel("")
self.statusbar.addWidget(self.snappingbutton)
self.statusbar.addWidget(spacer2)
self.statusbar.addWidget(self.gpslabel)
self.statusbar.addWidget(self.gpslabelposition)
self.statusbar.addPermanentWidget(self.scalebutton)
self.canvas.extentsChanged.connect(self.updatestatuslabel)
self.canvas.scaleChanged.connect(self.updatestatuslabel)
GPS.gpsposition.connect(self.update_gps_label)
GPS.gpsdisconnected.connect(self.gps_disconnected)
self.connectButtons()
def clear_plugins(self):
toolbars = self.findChildren(QToolBar)
for toolbar in toolbars:
if toolbar.property("plugin_toolbar"):
toolbar.unload()
self.removeToolBar(toolbar)
toolbar.deleteLater()
def add_plugins(self, pluginnames):
for name in pluginnames:
# Get the plugin
try:
plugin_mod = plugins.loaded_plugins[name]
except KeyError:
continue
if not hasattr(plugin_mod, 'toolbars'):
roam.utils.warning(
"No toolbars() function found in {}".format(name))
continue
toolbars = plugin_mod.toolbars()
self.load_plugin_toolbars(toolbars)
def load_plugin_toolbars(self, toolbars):
for ToolBarClass in toolbars:
toolbar = ToolBarClass(plugins.api, self)
self.addToolBar(Qt.BottomToolBarArea, toolbar)
toolbar.setProperty("plugin_toolbar", True)
def snapping_changed(self, snapping):
"""
Called when the snapping settings have changed. Updates the label in the status bar.
:param snapping:
"""
if snapping:
self.snappingbutton.setText("Snapping: On")
else:
self.snappingbutton.setText("Snapping: Off")
def toggle_snapping(self):
"""
Toggle snapping on or off.
"""
self.snapping = not self.snapping
try:
self.canvas.mapTool().toggle_snapping()
except AttributeError:
pass
RoamEvents.snappingChanged.emit(self.snapping)
def selectscale(self):
"""
Show the select scale widget.
:return:
"""
self.scalelist.show()
def update_scale_from_item(self, index):
"""
Update the canvas scale from the selected scale item.
:param index: The index of the selected item.
"""
scale, _ = self.scalewidget.toDouble(index.data(Qt.DisplayRole))
self.canvas.zoomScale(1.0 / scale)
def update_gps_label(self, position, gpsinfo):
"""
Update the GPS label in the status bar with the GPS status.
:param position: The current GPS position.
:param gpsinfo: The current extra GPS information.
"""
self.gpslabel.setText(
"GPS: PDOP <b>{0:.2f}</b> HDOP <b>{1:.2f}</b> VDOP <b>{2:.2f}</b>"
.format(gpsinfo.pdop, gpsinfo.hdop, gpsinfo.vdop))
places = roam.config.settings.get("gpsplaces", 8)
self.gpslabelposition.setText(
"X <b>{x:.{places}f}</b> Y <b>{y:.{places}f}</b>".format(
x=position.x(), y=position.y(), places=places))
def gps_disconnected(self):
"""
Called when the GPS is disconnected. Updates the label in the status bar with the message.
:return:
"""
self.gpslabel.setText("GPS Not Active")
self.gpslabelposition.setText("")
def zoom_to_feature(self, feature):
box = feature.geometry().boundingBox()
xmin, xmax, ymin, ymax = box.xMinimum(), box.xMaximum(), box.yMinimum(
), box.yMaximum()
xmin -= 5
xmax += 5
ymin -= 5
ymax += 5
box = QgsRectangle(xmin, ymin, xmax, ymax)
self.canvas.setExtent(box)
self.canvas.refresh()
def updatestatuslabel(self, *args):
"""
Update the status bar labels when the information has changed.
"""
extent = self.canvas.extent()
self.positionlabel.setText("Map Center: {}".format(
extent.center().toString()))
scale = 1.0 / self.canvas.scale()
scale = self.scalewidget.toString(scale)
self.scalebutton.setText(scale)
def refresh_map(self):
"""
Refresh the map
"""
self.canvas.refresh()
def updatescale(self):
"""
Update the scale of the map with the current scale from the scale widget
:return:
"""
self.canvas.zoomScale(1.0 / self.scalewidget.scale())
def init_qgisproject(self, doc):
"""
Called when the project file is read for the firs time.
:param doc: The XML doc.
:return: The current canvas CRS
:note: This method is old and needs to be refactored into something else.
"""
return self.canvas.mapSettings().destinationCrs()
def showEvent(self, *args, **kwargs):
"""
Handle the show event of the of the map widget. We have to do a little hack here to make the QGIS map refresh.
"""
if QGis.QGIS_VERSION_INT == 20200 and self.firstshow:
self.canvas.refresh()
self.canvas.repaint()
self.firstshow = False
def feature_form_loaded(self, form, feature, *args):
"""
Called when the feature form is loaded.
:param form: The Form object. Holds a reference to the forms layer.
:param feature: The current capture feature
"""
self.currentfeatureband.setToGeometry(feature.geometry(),
form.QGISLayer)
def highlight_selection(self, results):
"""
Highlight the selection on the canvas. This updates all selected objects based on the result set.
:param results: A dict-of-list of layer-features.
"""
self.clear_selection()
for layer, features in results.iteritems():
band = self.selectionbands[layer]
band.setColor(QColor(255, 0, 0))
band.setIconSize(25)
band.setWidth(5)
band.setBrushStyle(Qt.NoBrush)
band.reset(layer.geometryType())
band.setZValue(self.currentfeatureband.zValue() - 1)
for feature in features:
band.addGeometry(feature.geometry(), layer)
self.canvas.update()
def highlight_active_selection(self, layer, feature, features):
"""
Update the current active selected feature.
:param layer: The layer of the active feature.
:param feature: The active feature.
:param features: The other features in the set to show as non active selection.
:return:
"""
self.clear_selection()
self.highlight_selection({layer: features})
self.currentfeatureband.setToGeometry(feature.geometry(), layer)
self.canvas.update()
def clear_selection(self):
"""
Clear the selection from the canvas. Resets all selection rubbber bands.
:return:
"""
# Clear the main selection rubber band
self.canvas.scene().update()
self.currentfeatureband.reset()
# Clear the rest
for band in self.selectionbands.itervalues():
band.reset()
self.canvas.update()
self.editfeaturestack = []
def queue_feature_for_edit(self, form, feature):
"""
Push a feature on the edit stack so the feature can have the geometry edited.
:note: This is a big hack and I don't like it!
:param form: The form for the current feature
:param feature: The active feature.
"""
def trigger_default_action():
for action in self.projecttoolbar.actions():
if action.property('dataentry') and action.isdefault:
action.trigger()
self.canvas.mapTool().setEditMode(True, feature.geometry())
break
self.editfeaturestack.append((form, feature))
self.save_current_form()
self.load_form(form)
trigger_default_action()
def save_current_form(self):
self.last_form = self.current_form
def restore_last_form(self):
self.load_form(self.last_form)
def clear_temp_objects(self):
"""
Clear all temp objects from the canvas.
:return:
"""
def clear_tool_band():
"""
Clear the rubber band of the active tool if it has one
"""
tool = self.canvas.mapTool()
try:
tool.clearBand()
except AttributeError:
# No clearBand method found, but that's cool.
pass
self.currentfeatureband.reset()
clear_tool_band()
def settings_updated(self, settings):
"""
Called when the settings have been updated in the Roam config.
:param settings: A dict of the settings.
"""
self.actionGPS.updateGPSPort()
gpslogging = settings.get('gpslogging', True)
if self.gpslogging:
self.gpslogging.logging = gpslogging
def set_gps(self, gps, logging):
"""
Set the GPS for the map widget. Connects GPS signals
"""
self.gps = gps
self.gpslogging = logging
self.gps.gpsposition.connect(self.gps_update_canvas)
self.gps.firstfix.connect(self.gps_first_fix)
self.gps.gpsdisconnected.connect(self.gps_disconnected)
def gps_update_canvas(self, position, gpsinfo):
"""
Updates the map canvas based on the GPS position. By default if the GPS is outside the canvas
extent the canvas will move to center on the GPS. Can be turned off in settings.
:param postion: The current GPS position.
:param gpsinfo: The extra GPS information
"""
# Recenter map if we go outside of the 95% of the area
if self.gpslogging.logging:
self.gpsband.addPoint(position)
self.gpsband.show()
if roam.config.settings.get('gpscenter', True):
if not self.lastgpsposition == position:
self.lastposition = position
rect = QgsRectangle(position, position)
extentlimt = QgsRectangle(self.canvas.extent())
extentlimt.scale(0.95)
if not extentlimt.contains(position):
self.zoom_to_location(position)
self.marker.show()
self.marker.setCenter(position, gpsinfo)
def gps_first_fix(self, postion, gpsinfo):
"""
Called the first time the GPS gets a fix. If set this will zoom to the GPS after the first fix
:param postion: The current GPS position.
:param gpsinfo: The extra GPS information
"""
zoomtolocation = roam.config.settings.get('gpszoomonfix', True)
if zoomtolocation:
self.canvas.zoomScale(1000)
self.zoom_to_location(postion)
def zoom_to_location(self, position):
"""
Zoom to ta given position on the map..
"""
rect = QgsRectangle(position, position)
self.canvas.setExtent(rect)
self.canvas.refresh()
def gps_disconnected(self):
"""
Called when the GPS is disconnected
"""
self.marker.hide()
def select_data_entry(self):
"""
Open the form selection widget to allow the user to pick the active capture form.
"""
def showformerror(form):
pass
def actions():
for form in self.project.forms:
if not self.form_valid_for_capture(form):
continue
action = form.createuiaction()
valid, failreasons = form.valid
if not valid:
roam.utils.warning("Form {} failed to load".format(
form.label))
roam.utils.warning("Reasons {}".format(failreasons))
action.triggered.connect(partial(showformerror, form))
else:
action.triggered.connect(partial(self.load_form, form))
yield action
formpicker = PickActionDialog(msg="Select data entry form", wrap=5)
formpicker.addactions(actions())
formpicker.exec_()
def project_loaded(self, project):
"""
Called when the project is loaded. Main entry point for a loade project.
:param project: The Roam project that has been loaded.
"""
self.project = project
self.actionPan.trigger()
firstform = self.first_capture_form()
if firstform:
self.load_form(firstform)
self.dataentryselection.setVisible(True)
else:
self.dataentryselection.setVisible(False)
# Enable the raster layers button only if the project contains a raster layer.
layers = QgsMapLayerRegistry.instance().mapLayers().values()
hasrasters = any(layer.type() == QgsMapLayer.RasterLayer
for layer in layers)
self.actionRaster.setEnabled(hasrasters)
self.defaultextent = self.canvas.extent()
roam.utils.info("Extent: {}".format(self.defaultextent.toString()))
self.infoTool.selectionlayers = project.selectlayersmapping()
self.canvas.refresh()
projectscales, _ = QgsProject.instance().readBoolEntry(
"Scales", "/useProjectScales")
if projectscales:
projectscales, _ = QgsProject.instance().readListEntry(
"Scales", "/ScalesList")
self.scalewidget.updateScales(projectscales)
else:
scales = [
"1:50000", "1:25000", "1:10000", "1:5000", "1:2500", "1:1000",
"1:500", "1:250", "1:200", "1:100"
]
scales = roam.config.settings.get('scales', scales)
self.scalewidget.updateScales(scales)
if self.scalebar_enabled:
self.scalebar.update()
self.actionPan.toggle()
self.clear_plugins()
self.add_plugins(project.enabled_plugins)
def setMapTool(self, tool, *args):
"""
Set the active map tool in the canvas.
:param tool: The QgsMapTool to set.
"""
if tool == self.canvas.mapTool():
return
if hasattr(tool, "setSnapping"):
tool.setSnapping(self.snapping)
self.canvas.setMapTool(tool)
def connectButtons(self):
"""
Connect the default buttons in the interface. Zoom, pan, etc
"""
def connectAction(action, tool):
action.toggled.connect(partial(self.setMapTool, tool))
def cursor(name):
pix = QPixmap(name)
pix = pix.scaled(QSize(24, 24))
return QCursor(pix)
self.zoomInTool = QgsMapToolZoom(self.canvas, False)
self.zoomOutTool = QgsMapToolZoom(self.canvas, True)
self.panTool = PanTool(self.canvas)
self.infoTool = InfoTool(self.canvas)
self.infoTool.setAction(self.actionInfo)
self.zoomInTool.setAction(self.actionZoom_In)
self.zoomOutTool.setAction(self.actionZoom_Out)
self.panTool.setAction(self.actionPan)
connectAction(self.actionZoom_In, self.zoomInTool)
connectAction(self.actionZoom_Out, self.zoomOutTool)
connectAction(self.actionPan, self.panTool)
connectAction(self.actionInfo, self.infoTool)
self.zoomInTool.setCursor(cursor(':/icons/in'))
self.zoomOutTool.setCursor(cursor(':/icons/out'))
self.infoTool.setCursor(cursor(':/icons/select'))
self.actionRaster.triggered.connect(self.toggleRasterLayers)
self.actionHome.triggered.connect(self.homeview)
def homeview(self):
"""
Zoom the mapview canvas to the extents the project was opened at i.e. the
default extent.
"""
self.canvas.setExtent(self.defaultextent)
self.canvas.refresh()
def form_valid_for_capture(self, form):
"""
Check if the given form is valid for capture.
:param form: The form to check.
:return: True if valid form for capture
"""
return form.has_geometry and self.project.layer_can_capture(
form.QGISLayer)
def first_capture_form(self):
"""
Return the first valid form for capture.
"""
for form in self.project.forms:
if self.form_valid_for_capture(form):
return form
def load_form(self, form):
"""
Load the given form so it's the active one for capture
:param form: The form to load
"""
self.clearCaptureTools()
self.dataentryselection.setIcon(QIcon(form.icon))
self.dataentryselection.setText(form.icontext)
self.create_capture_buttons(form)
self.current_form = form
def create_capture_buttons(self, form):
"""
Create the capture buttons in the toolbar for the given form.
:param form: The active form.
"""
layer = form.QGISLayer
tool = form.getMaptool()(self.canvas, form.settings)
for action in tool.actions:
# Create the action here.
if action.ismaptool:
action.toggled.connect(partial(self.setMapTool, tool))
# Set the action as a data entry button so we can remove it later.
action.setProperty("dataentry", True)
self.editgroup.addAction(action)
self.layerbuttons.append(action)
self.projecttoolbar.insertAction(self.topspaceraction, action)
action.setChecked(action.isdefault)
if hasattr(tool, 'geometryComplete'):
add = partial(self.add_new_feature, form)
tool.geometryComplete.connect(add)
else:
tool.finished.connect(self.openForm)
tool.error.connect(self.show_invalid_geometry_message)
def show_invalid_geometry_message(self, message):
RoamEvents.raisemessage("Invalid geometry capture",
message,
level=RoamEvents.CRITICAL)
def add_new_feature(self, form, geometry):
"""
Add a new new feature to the given layer
"""
# TODO Extract into function.
# NOTE This function is doing too much, acts as add and also edit.
layer = form.QGISLayer
if layer.geometryType() in [
QGis.WKBMultiLineString, QGis.WKBMultiPoint,
QGis.WKBMultiPolygon
]:
geometry.convertToMultiType()
try:
form, feature = self.editfeaturestack.pop()
self.editfeaturegeometry(form, feature, newgeometry=geometry)
return
except IndexError:
pass
feature = form.new_feature(geometry=geometry)
RoamEvents.load_feature_form(form, feature, editmode=False)
def editfeaturegeometry(self, form, feature, newgeometry):
# TODO Extract into function.
layer = form.QGISLayer
layer.startEditing()
feature.setGeometry(newgeometry)
layer.updateFeature(feature)
saved = layer.commitChanges()
if not saved:
map(roam.utils.error, layer.commitErrors())
self.canvas.refresh()
self.currentfeatureband.setToGeometry(feature.geometry(), layer)
RoamEvents.editgeometry_complete.emit(form, feature)
self.canvas.mapTool().setEditMode(False, None)
self.restore_last_form()
def clearCaptureTools(self):
"""
Clear the capture tools from the toolbar.
:return: True if the capture button was active at the time of clearing.
"""
captureselected = False
for action in self.projecttoolbar.actions():
if action.objectName() == "capture" and action.isChecked():
captureselected = True
if action.property('dataentry'):
self.projecttoolbar.removeAction(action)
return captureselected
def toggleRasterLayers(self):
"""
Toggle all raster layers on or off.
"""
# Freeze the canvas to save on UI refresh
self.canvas.freeze()
tree = QgsProject.instance().layerTreeRoot()
for node in tree.findLayers():
if node.layer().type() == QgsMapLayer.RasterLayer:
if node.isVisible() == Qt.Checked:
state = Qt.Unchecked
else:
state = Qt.Checked
node.setVisible(state)
self.canvas.freeze(False)
self.canvas.refresh()
def cleanup(self):
"""
Clean up when the project has changed.
:return:
"""
self.bridge.clear()
self.gpsband.reset()
self.gpsband.hide()
self.clear_selection()
self.clear_temp_objects()
self.clearCaptureTools()
self.canvas.freeze()
self.canvas.clear()
self.canvas.freeze(False)
for action in self.layerbuttons:
self.editgroup.removeAction(action)
class MapWidget(Ui_CanvasWidget, QMainWindow):
def __init__(self, parent=None):
super(MapWidget, self).__init__(parent)
self.setupUi(self)
icon = roam_style.iconsize()
self.projecttoolbar.setIconSize(QSize(icon, icon))
self.firstshow = True
self.layerbuttons = []
self.editfeaturestack = []
self.lastgpsposition = None
self.project = None
self.gps = None
self.gpslogging = None
self.selectionbands = defaultdict(partial(QgsRubberBand, self.canvas))
self.bridge = QgsLayerTreeMapCanvasBridge(QgsProject.instance().layerTreeRoot(), self.canvas)
self.bridge.setAutoSetupOnFirstLayer(False)
QgsProject.instance().writeProject.connect(self.bridge.writeProject)
QgsProject.instance().readProject.connect(self.bridge.readProject)
# self.canvas.setInteractive(False)
self.canvas.setCanvasColor(Qt.white)
self.canvas.enableAntiAliasing(True)
self.canvas.setWheelAction(QgsMapCanvas.WheelZoomToMouseCursor)
self.snapping = SnappingUtils(self.canvas, self)
self.canvas.setSnappingUtils(self.snapping)
QgsProject.instance().readProject.connect(self.snapping.readConfigFromProject)
if hasattr(self.canvas, 'setParallelRenderingEnabled'):
threadcount = QThread.idealThreadCount()
threadcount = 2 if threadcount > 2 else 1
QgsApplication.setMaxThreads(threadcount)
self.canvas.setParallelRenderingEnabled(True)
pal = QgsPalLabeling()
self.canvas.mapRenderer().setLabelingEngine(pal)
self.canvas.setFrameStyle(QFrame.NoFrame)
self.editgroup = QActionGroup(self)
self.editgroup.setExclusive(True)
self.editgroup.addAction(self.actionPan)
self.editgroup.addAction(self.actionZoom_In)
self.editgroup.addAction(self.actionZoom_Out)
self.editgroup.addAction(self.actionInfo)
self.actionGPS = GPSAction(":/icons/gps", self.canvas, self)
self.projecttoolbar.addAction(self.actionGPS)
if roam.config.settings.get('north_arrow', False):
self.northarrow = NorthArrow(":/icons/north", self.canvas)
self.northarrow.setPos(10, 10)
self.canvas.scene().addItem(self.northarrow)
self.scalebar_enabled = roam.config.settings.get('scale_bar', False)
if self.scalebar_enabled:
self.scalebar = ScaleBarItem(self.canvas)
self.canvas.scene().addItem(self.scalebar)
self.projecttoolbar.setContextMenuPolicy(Qt.CustomContextMenu)
gpsspacewidget = QWidget()
gpsspacewidget.setMinimumWidth(30)
gpsspacewidget.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
self.topspaceraction = self.projecttoolbar.insertWidget(self.actionGPS, gpsspacewidget)
self.dataentryselection = QAction(self.projecttoolbar)
self.dataentryaction = self.projecttoolbar.insertAction(self.topspaceraction, self.dataentryselection)
self.dataentryselection.triggered.connect(self.select_data_entry)
self.marker = GPSMarker(self.canvas)
self.marker.hide()
self.currentfeatureband = CurrentSelection(self.canvas)
self.currentfeatureband.setIconSize(30)
self.currentfeatureband.setWidth(10)
self.currentfeatureband.setColor(QColor(186, 93, 212, 50))
self.currentfeatureband.setOutlineColour(QColor(186, 93, 212))
self.gpsband = QgsRubberBand(self.canvas)
self.gpsband.setColor(QColor(165, 111, 212, 75))
self.gpsband.setWidth(5)
RoamEvents.editgeometry.connect(self.queue_feature_for_edit)
RoamEvents.selectioncleared.connect(self.clear_selection)
RoamEvents.selectionchanged.connect(self.highlight_selection)
RoamEvents.openfeatureform.connect(self.feature_form_loaded)
RoamEvents.sync_complete.connect(self.refresh_map)
RoamEvents.snappingChanged.connect(self.snapping_changed)
self.snappingbutton = QToolButton()
self.snappingbutton.setText("Snapping: On")
self.snappingbutton.setAutoRaise(True)
self.snappingbutton.pressed.connect(self.toggle_snapping)
spacer = QWidget()
spacer2 = QWidget()
spacer.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Fixed)
spacer2.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Fixed)
self.scalewidget = QgsScaleComboBox()
self.scalebutton = QToolButton()
self.scalebutton.setAutoRaise(True)
self.scalebutton.setMaximumHeight(self.statusbar.height())
self.scalebutton.pressed.connect(self.selectscale)
self.scalebutton.setText("Scale")
self.scalelist = BigList(parent=self.canvas, centeronparent=True, showsave=False)
self.scalelist.hide()
self.scalelist.setlabel("Map Scale")
self.scalelist.setmodel(self.scalewidget.model())
self.scalelist.closewidget.connect(self.scalelist.close)
self.scalelist.itemselected.connect(self.update_scale_from_item)
self.scalelist.itemselected.connect(self.scalelist.close)
self.positionlabel = QLabel('')
self.gpslabel = QLabel("GPS: Not active")
self.statusbar.addWidget(self.snappingbutton)
self.statusbar.addWidget(spacer2)
self.statusbar.addWidget(self.gpslabel)
self.statusbar.addPermanentWidget(self.scalebutton)
self.canvas.extentsChanged.connect(self.updatestatuslabel)
self.canvas.scaleChanged.connect(self.updatestatuslabel)
GPS.gpsposition.connect(self.update_gps_label)
GPS.gpsdisconnected.connect(self.gps_disconnected)
self.connectButtons()
def clear_plugins(self):
toolbars = self.findChildren(QToolBar)
for toolbar in toolbars:
if toolbar.property("plugin_toolbar"):
self.removeToolBar(toolbar)
toolbar.deleteLater()
def add_plugins(self, pluginnames):
for name in pluginnames:
# Get the plugin
try:
plugin_mod = plugins.loaded_plugins[name]
except KeyError:
continue
if not hasattr(plugin_mod, 'toolbars'):
roam.utils.warning("No toolbars() function found in {}".format(name))
continue
toolbars = plugin_mod.toolbars()
self.load_plugin_toolbars(toolbars)
def load_plugin_toolbars(self, toolbars):
for ToolBarClass in toolbars:
toolbar = ToolBarClass(plugins.api, self)
self.addToolBar(Qt.BottomToolBarArea, toolbar)
toolbar.setProperty("plugin_toolbar", True)
def snapping_changed(self, snapping):
"""
Called when the snapping settings have changed. Updates the label in the status bar.
:param snapping:
"""
if snapping:
self.snappingbutton.setText("Snapping: On")
else:
self.snappingbutton.setText("Snapping: Off")
def toggle_snapping(self):
"""
Toggle snapping on or off.
"""
snap = not snapping
global snapping
snapping = snap
RoamEvents.snappingChanged.emit(snapping)
def selectscale(self):
"""
Show the select scale widget.
:return:
"""
self.scalelist.show()
def update_scale_from_item(self, index):
"""
Update the canvas scale from the selected scale item.
:param index: The index of the selected item.
"""
scale, _ = self.scalewidget.toDouble(index.data(Qt.DisplayRole))
self.canvas.zoomScale(1.0 / scale)
def update_gps_label(self, position, gpsinfo):
"""
Update the GPS label in the status bar with the GPS status.
:param position: The current GPS position.
:param gpsinfo: The current extra GPS information.
"""
self.gpslabel.setText("GPS: PDOP {0:.2f} HDOP {1:.2f} VDOP {2:.2f}".format(gpsinfo.pdop,
gpsinfo.hdop,
gpsinfo.vdop))
def gps_disconnected(self):
"""
Called when the GPS is disconnected. Updates the label in the status bar with the message.
:return:
"""
self.gpslabel.setText("GPS Not Active")
def updatestatuslabel(self, *args):
"""
Update the status bar labels when the information has changed.
"""
extent = self.canvas.extent()
self.positionlabel.setText("Map Center: {}".format(extent.center().toString()))
scale = 1.0 / self.canvas.scale()
scale = self.scalewidget.toString(scale)
self.scalebutton.setText(scale)
def refresh_map(self):
"""
Refresh the map
"""
self.canvas.refresh()
def updatescale(self):
"""
Update the scale of the map with the current scale from the scale widget
:return:
"""
self.canvas.zoomScale(1.0 / self.scalewidget.scale())
def init_qgisproject(self, doc):
"""
Called when the project file is read for the firs time.
:param doc: The XML doc.
:return: The current canvas CRS
:note: This method is old and needs to be refactored into something else.
"""
return self.canvas.mapSettings().destinationCrs()
def showEvent(self, *args, **kwargs):
"""
Handle the show event of the of the map widget. We have to do a little hack here to make the QGIS map refresh.
"""
if QGis.QGIS_VERSION_INT == 20200 and self.firstshow:
self.canvas.refresh()
self.canvas.repaint()
self.firstshow = False
def feature_form_loaded(self, form, feature, *args):
"""
Called when the feature form is loaded.
:param form: The Form object. Holds a reference to the forms layer.
:param feature: The current capture feature
"""
self.currentfeatureband.setToGeometry(feature.geometry(), form.QGISLayer)
def highlight_selection(self, results):
"""
Highlight the selection on the canvas. This updates all selected objects based on the result set.
:param results: A dict-of-list of layer-features.
"""
self.clear_selection()
for layer, features in results.iteritems():
band = self.selectionbands[layer]
band.setColor(QColor(255, 0, 0))
band.setIconSize(25)
band.setWidth(5)
band.setBrushStyle(Qt.NoBrush)
band.reset(layer.geometryType())
band.setZValue(self.currentfeatureband.zValue() - 1)
for feature in features:
band.addGeometry(feature.geometry(), layer)
self.canvas.update()
def highlight_active_selection(self, layer, feature, features):
"""
Update the current active selected feature.
:param layer: The layer of the active feature.
:param feature: The active feature.
:param features: The other features in the set to show as non active selection.
:return:
"""
self.clear_selection()
self.highlight_selection({layer: features})
self.currentfeatureband.setToGeometry(feature.geometry(), layer)
self.canvas.update()
def clear_selection(self):
"""
Clear the selection from the canvas. Resets all selection rubbber bands.
:return:
"""
# Clear the main selection rubber band
self.canvas.scene().update()
self.currentfeatureband.reset()
# Clear the rest
for band in self.selectionbands.itervalues():
band.reset()
self.canvas.update()
self.editfeaturestack = []
def queue_feature_for_edit(self, form, feature):
"""
Push a feature on the edit stack so the feature can have the geometry edited.
:note: This is a big hack and I don't like it!
:param form: The form for the current feature
:param feature: The active feature.
"""
def trigger_default_action():
for action in self.projecttoolbar.actions():
if action.property('dataentry') and action.isdefault:
action.trigger()
self.canvas.mapTool().setEditMode(True, feature.geometry())
break
self.editfeaturestack.append((form, feature))
self.load_form(form)
trigger_default_action()
def clear_temp_objects(self):
"""
Clear all temp objects from the canvas.
:return:
"""
def clear_tool_band():
"""
Clear the rubber band of the active tool if it has one
"""
tool = self.canvas.mapTool()
try:
tool.clearBand()
except AttributeError:
# No clearBand method found, but that's cool.
pass
self.currentfeatureband.reset()
clear_tool_band()
def settings_updated(self, settings):
"""
Called when the settings have been updated in the Roam config.
:param settings: A dict of the settings.
"""
self.actionGPS.updateGPSPort()
gpslogging = settings.get('gpslogging', True)
if self.gpslogging:
self.gpslogging.logging = gpslogging
def set_gps(self, gps, logging):
"""
Set the GPS for the map widget. Connects GPS signals
"""
self.gps = gps
self.gpslogging = logging
self.gps.gpsposition.connect(self.gps_update_canvas)
self.gps.firstfix.connect(self.gps_first_fix)
self.gps.gpsdisconnected.connect(self.gps_disconnected)
def gps_update_canvas(self, position, gpsinfo):
"""
Updates the map canvas based on the GPS position. By default if the GPS is outside the canvas
extent the canvas will move to center on the GPS. Can be turned off in settings.
:param postion: The current GPS position.
:param gpsinfo: The extra GPS information
"""
# Recenter map if we go outside of the 95% of the area
if self.gpslogging.logging:
self.gpsband.addPoint(position)
self.gpsband.show()
if roam.config.settings.get('gpscenter', True):
if not self.lastgpsposition == position:
self.lastposition = position
rect = QgsRectangle(position, position)
extentlimt = QgsRectangle(self.canvas.extent())
extentlimt.scale(0.95)
if not extentlimt.contains(position):
self.zoom_to_location(position)
self.marker.show()
self.marker.setCenter(position, gpsinfo)
def gps_first_fix(self, postion, gpsinfo):
"""
Called the first time the GPS gets a fix. If set this will zoom to the GPS after the first fix
:param postion: The current GPS position.
:param gpsinfo: The extra GPS information
"""
zoomtolocation = roam.config.settings.get('gpszoomonfix', True)
if zoomtolocation:
self.canvas.zoomScale(1000)
self.zoom_to_location(postion)
def zoom_to_location(self, position):
"""
Zoom to ta given position on the map..
"""
rect = QgsRectangle(position, position)
self.canvas.setExtent(rect)
self.canvas.refresh()
def gps_disconnected(self):
"""
Called when the GPS is disconnected
"""
self.marker.hide()
def select_data_entry(self):
"""
Open the form selection widget to allow the user to pick the active capture form.
"""
def showformerror(form):
pass
def actions():
for form in self.project.forms:
if not self.form_valid_for_capture(form):
continue
action = form.createuiaction()
valid, failreasons = form.valid
if not valid:
roam.utils.warning("Form {} failed to load".format(form.label))
roam.utils.warning("Reasons {}".format(failreasons))
action.triggered.connect(partial(showformerror, form))
else:
action.triggered.connect(partial(self.load_form, form))
yield action
formpicker = PickActionDialog(msg="Select data entry form", wrap=5)
formpicker.addactions(actions())
formpicker.exec_()
def project_loaded(self, project):
"""
Called when the project is loaded. Main entry point for a loade project.
:param project: The Roam project that has been loaded.
"""
self.project = project
self.actionPan.trigger()
firstform = self.first_capture_form()
if firstform:
self.load_form(firstform)
self.dataentryselection.setVisible(True)
else:
self.dataentryselection.setVisible(False)
# Enable the raster layers button only if the project contains a raster layer.
layers = QgsMapLayerRegistry.instance().mapLayers().values()
hasrasters = any(layer.type() == QgsMapLayer.RasterLayer for layer in layers)
self.actionRaster.setEnabled(hasrasters)
self.defaultextent = self.canvas.extent()
roam.utils.info("Extent: {}".format(self.defaultextent.toString()))
self.infoTool.selectionlayers = project.selectlayersmapping()
self.canvas.refresh()
projectscales, _ = QgsProject.instance().readBoolEntry("Scales", "/useProjectScales")
if projectscales:
projectscales, _ = QgsProject.instance().readListEntry("Scales", "/ScalesList")
self.scalewidget.updateScales(projectscales)
else:
scales = ["1:50000", "1:25000", "1:10000", "1:5000",
"1:2500", "1:1000", "1:500", "1:250", "1:200", "1:100"]
scales = roam.config.settings.get('scales', scales)
self.scalewidget.updateScales(scales)
if self.scalebar_enabled:
self.scalebar.update()
self.actionPan.toggle()
self.clear_plugins()
self.add_plugins(project.enabled_plugins)
def setMapTool(self, tool, *args):
"""
Set the active map tool in the canvas.
:param tool: The QgsMapTool to set.
"""
if tool == self.canvas.mapTool():
return
if hasattr(tool, "setSnapping"):
tool.setSnapping(snapping)
self.canvas.setMapTool(tool)
def connectButtons(self):
"""
Connect the default buttons in the interface. Zoom, pan, etc
"""
def connectAction(action, tool):
action.toggled.connect(partial(self.setMapTool, tool))
def cursor(name):
pix = QPixmap(name)
pix = pix.scaled(QSize(24, 24))
return QCursor(pix)
self.zoomInTool = QgsMapToolZoom(self.canvas, False)
self.zoomOutTool = QgsMapToolZoom(self.canvas, True)
self.panTool = PanTool(self.canvas)
self.infoTool = InfoTool(self.canvas)
connectAction(self.actionZoom_In, self.zoomInTool)
connectAction(self.actionZoom_Out, self.zoomOutTool)
connectAction(self.actionPan, self.panTool)
connectAction(self.actionInfo, self.infoTool)
self.zoomInTool.setCursor(cursor(':/icons/in'))
self.zoomOutTool.setCursor(cursor(':/icons/out'))
self.infoTool.setCursor(cursor(':/icons/select'))
self.actionRaster.triggered.connect(self.toggleRasterLayers)
self.actionHome.triggered.connect(self.homeview)
def homeview(self):
"""
Zoom the mapview canvas to the extents the project was opened at i.e. the
default extent.
"""
self.canvas.setExtent(self.defaultextent)
self.canvas.refresh()
def form_valid_for_capture(self, form):
"""
Check if the given form is valid for capture.
:param form: The form to check.
:return: True if valid form for capture
"""
return form.has_geometry and self.project.layer_can_capture(form.QGISLayer)
def first_capture_form(self):
"""
Return the first valid form for capture.
"""
for form in self.project.forms:
if self.form_valid_for_capture(form):
return form
def load_form(self, form):
"""
Load the given form so it's the active one for capture
:param form: The form to load
"""
self.clearCapatureTools()
self.dataentryselection.setIcon(QIcon(form.icon))
self.dataentryselection.setText(form.icontext)
self.create_capture_buttons(form)
def create_capture_buttons(self, form):
"""
Create the capture buttons in the toolbar for the given form.
:param form: The active form.
"""
layer = form.QGISLayer
tool = form.getMaptool()(self.canvas)
for action in tool.actions:
# Create the action here.
if action.ismaptool:
action.toggled.connect(partial(self.setMapTool, tool))
# Set the action as a data entry button so we can remove it later.
action.setProperty("dataentry", True)
self.editgroup.addAction(action)
self.layerbuttons.append(action)
self.projecttoolbar.insertAction(self.topspaceraction, action)
action.setChecked(action.isdefault)
if hasattr(tool, 'geometryComplete'):
add = partial(self.add_new_feature, form)
tool.geometryComplete.connect(add)
else:
tool.finished.connect(self.openForm)
tool.error.connect(partial(self.showUIMessage, form.label))
def add_new_feature(self, form, geometry):
"""
Add a new new feature to the given layer
"""
# TODO Extract into function.
# NOTE This function is doing too much, acts as add and also edit.
layer = form.QGISLayer
if layer.geometryType() in [QGis.WKBMultiLineString, QGis.WKBMultiPoint, QGis.WKBMultiPolygon]:
geometry.convertToMultiType()
try:
form, feature = self.editfeaturestack.pop()
self.editfeaturegeometry(form, feature, newgeometry=geometry)
return
except IndexError:
pass
feature = form.new_feature(geometry=geometry)
RoamEvents.load_feature_form(form, feature, editmode=False)
def editfeaturegeometry(self, form, feature, newgeometry):
# TODO Extract into function.
layer = form.QGISLayer
layer.startEditing()
feature.setGeometry(newgeometry)
layer.updateFeature(feature)
saved = layer.commitChanges()
if not saved:
map(roam.utils.error, layer.commitErrors())
self.canvas.refresh()
self.currentfeatureband.setToGeometry(feature.geometry(), layer)
RoamEvents.editgeometry_complete.emit(form, feature)
self.canvas.mapTool().setEditMode(False, None)
def clearCapatureTools(self):
"""
Clear the capture tools from the toolbar.
:return: True if the capture button was active at the time of clearing.
"""
captureselected = False
for action in self.projecttoolbar.actions():
if action.objectName() == "capture" and action.isChecked():
captureselected = True
if action.property('dataentry'):
self.projecttoolbar.removeAction(action)
return captureselected
def toggleRasterLayers(self):
"""
Toggle all raster layers on or off.
"""
# Freeze the canvas to save on UI refresh
self.canvas.freeze()
tree = QgsProject.instance().layerTreeRoot()
for node in tree.findLayers():
if node.layer().type() == QgsMapLayer.RasterLayer:
if node.isVisible() == Qt.Checked:
state = Qt.Unchecked
else:
state = Qt.Checked
node.setVisible(state)
self.canvas.freeze(False)
self.canvas.refresh()
def cleanup(self):
"""
Clean up when the project has changed.
:return:
"""
self.bridge.clear()
self.gpsband.reset()
self.gpsband.hide()
self.clear_selection()
self.clear_temp_objects()
self.clearCapatureTools()
self.canvas.freeze()
self.canvas.clear()
self.canvas.freeze(False)
for action in self.layerbuttons:
self.editgroup.removeAction(action)
class MainWindow(ui_mainwindow.Ui_MainWindow, QMainWindow):
"""
Main application window
"""
def __init__(self):
super(MainWindow, self).__init__()
self.setupUi(self)
self.canvaslayers = []
self.layerbuttons = []
self.project = None
self.selectionbands = defaultdict(partial(QgsRubberBand, self.canvas))
self.canvas.setCanvasColor(Qt.white)
self.canvas.enableAntiAliasing(True)
self.canvas.setWheelAction(QgsMapCanvas.WheelZoomToMouseCursor)
self.bar = roam.messagebaritems.MessageBar(self.centralwidget)
self.actionMap.setVisible(False)
self.actionLegend.setVisible(False)
pal = QgsPalLabeling()
self.canvas.mapRenderer().setLabelingEngine(pal)
self.canvas.setFrameStyle(QFrame.NoFrame)
self.menuGroup = QActionGroup(self)
self.menuGroup.setExclusive(True)
self.menuGroup.addAction(self.actionMap)
self.menuGroup.addAction(self.actionDataEntry)
self.menuGroup.addAction(self.actionLegend)
self.menuGroup.addAction(self.actionProject)
self.menuGroup.addAction(self.actionSync)
self.menuGroup.addAction(self.actionSettings)
self.menuGroup.addAction(self.actionGPS)
self.menuGroup.triggered.connect(self.updatePage)
self.editgroup = QActionGroup(self)
self.editgroup.setExclusive(True)
self.editgroup.addAction(self.actionPan)
self.editgroup.addAction(self.actionZoom_In)
self.editgroup.addAction(self.actionZoom_Out)
self.editgroup.addAction(self.actionInfo)
self.actionLegend.triggered.connect(self.updatelegend)
self.actionGPS = GPSAction(":/icons/gps", self.canvas, self)
self.projecttoolbar.addAction(self.actionGPS)
self.projectwidget.requestOpenProject.connect(self.loadProject)
QgsProject.instance().readProject.connect(self._readProject)
self.gpswidget.setgps(GPS)
self.actionSettings.toggled.connect(
self.settingswidget.populateControls)
self.actionSettings.toggled.connect(self.settingswidget.readSettings)
self.settingswidget.settingsupdated.connect(self.settingsupdated)
self.dataentrywidget = DataEntryWidget(self.canvas, self.bar)
self.widgetpage.layout().addWidget(self.dataentrywidget)
self.dataentrywidget.rejected.connect(self.formrejected)
self.dataentrywidget.featuresaved.connect(self.featureSaved)
self.dataentrywidget.featuredeleted.connect(self.featuredeleted)
self.dataentrywidget.failedsave.connect(self.failSave)
self.dataentrywidget.helprequest.connect(self.showhelp)
def createSpacer(width=0, height=0):
widget = QWidget()
widget.setMinimumWidth(width)
widget.setMinimumHeight(height)
return widget
gpsspacewidget = createSpacer(30)
sidespacewidget = createSpacer(30)
sidespacewidget2 = createSpacer(height=20)
sidespacewidget.setSizePolicy(QSizePolicy.Expanding,
QSizePolicy.Expanding)
sidespacewidget2.setSizePolicy(QSizePolicy.Fixed, QSizePolicy.Fixed)
gpsspacewidget.setSizePolicy(QSizePolicy.Expanding,
QSizePolicy.Expanding)
self.topspaceraction = self.projecttoolbar.insertWidget(
self.actionGPS, gpsspacewidget)
def createlabel(text):
style = """
QLabel {
color: #706565;
font: 14px "Calibri" ;
}"""
label = QLabel(text)
label.setStyleSheet(style)
return label
self.projectlabel = createlabel("Project: {project}")
self.userlabel = createlabel(
"User: {user}".format(user=getpass.getuser()))
self.positionlabel = createlabel('')
self.gpslabel = createlabel("GPS: Not active")
self.statusbar.addWidget(self.projectlabel)
self.statusbar.addWidget(self.userlabel)
spacer = createSpacer()
spacer2 = createSpacer()
spacer.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Fixed)
spacer2.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Fixed)
self.statusbar.addWidget(spacer)
self.statusbar.addWidget(self.positionlabel)
self.statusbar.addWidget(spacer2)
self.statusbar.addWidget(self.gpslabel)
self.menutoolbar.insertWidget(self.actionQuit, sidespacewidget2)
self.menutoolbar.insertWidget(self.actionProject, sidespacewidget)
self.panels = []
self.connectButtons()
self.currentfeatureband = QgsRubberBand(self.canvas)
self.currentfeatureband.setIconSize(20)
self.currentfeatureband.setWidth(10)
self.currentfeatureband.setColor(QColor(186, 93, 212, 76))
self.canvas_page.layout().insertWidget(0, self.projecttoolbar)
self.dataentryselection = QAction(self.projecttoolbar)
self.dataentryaction = self.projecttoolbar.insertAction(
self.topspaceraction, self.dataentryselection)
self.dataentryselection.triggered.connect(self.selectdataentry)
self.centralwidget.layout().addWidget(self.statusbar)
self.actionGPSFeature.setProperty('dataentry', True)
self.infodock = InfoDock(self.canvas)
self.infodock.featureupdated.connect(self.highlightfeature)
self.infodock.hide()
self.hidedataentry()
self.canvas.extentsChanged.connect(self.updatestatuslabel)
RoamEvents.openimage.connect(self.openimage)
RoamEvents.openurl.connect(self.viewurl)
RoamEvents.openfeatureform.connect(self.openForm)
RoamEvents.openkeyboard.connect(self.openkeyboard)
RoamEvents.selectioncleared.connect(self.clearselection)
RoamEvents.editgeometry.connect(self.addforedit)
RoamEvents.editgeometry_complete.connect(self.on_geometryedit)
RoamEvents.onShowMessage.connect(self.showUIMessage)
RoamEvents.selectionchanged.connect(self.highlightselection)
RoamEvents.selectionchanged.connect(self.showInfoResults)
GPS.gpspostion.connect(self.updatecanvasfromgps)
GPS.firstfix.connect(self.gpsfirstfix)
GPS.gpsdisconnected.connect(self.gpsdisconnected)
self.lastgpsposition = None
self.marker = GPSMarker(self.canvas)
self.marker.hide()
self.legendpage.showmap.connect(self.showmap)
self.editfeaturestack = []
self.currentselection = {}
def showUIMessage(self,
label,
message,
level=QgsMessageBar.INFO,
time=0,
extra=''):
self.bar.pushMessage(label,
message,
level,
duration=time,
extrainfo=extra)
def addforedit(self, form, feature):
self.editfeaturestack.append((form, feature))
self.loadform(form)
actions = self.getcaptureactions()
for action in actions:
if action.isdefault:
action.trigger()
break
def updatelegend(self):
self.legendpage.updatecanvas(self.canvas)
def gpsfirstfix(self, postion, gpsinfo):
zoomtolocation = roam.config.settings.get('gpszoomonfix', True)
if zoomtolocation:
self.canvas.zoomScale(1000)
def updatecanvasfromgps(self, position, gpsinfo):
# Recenter map if we go outside of the 95% of the area
if not self.lastgpsposition == position:
self.lastposition = position
rect = QgsRectangle(position, position)
extentlimt = QgsRectangle(self.canvas.extent())
extentlimt.scale(0.95)
if not extentlimt.contains(position):
self.canvas.setExtent(rect)
self.canvas.refresh()
self.marker.show()
self.marker.setCenter(position)
self.gpslabel.setText("GPS: PDOP {} HDOP {} VDOP {}".format(
gpsinfo.pdop, gpsinfo.hdop, gpsinfo.vdop))
def gpsdisconnected(self):
self.marker.hide()
self.gpslabel.setText("GPS Not Active")
def openkeyboard(self):
if not roam.config.settings.get('keyboard', True):
return
if sys.platform == 'win32':
try:
programfiles = os.environ['ProgramW6432']
except KeyError:
programfiles = os.environ['ProgramFiles']
cmd = r'{path}\Common Files\Microsoft Shared\ink\TabTip.exe'.format(
path=programfiles)
try:
os.startfile(cmd)
except WindowsError:
roam.config.settings['keyboard'] = False
roam.config.save()
else:
cmd = 'onboard'
Popen(cmd)
def selectdataentry(self):
forms = self.project.forms
formpicker = PickActionDialog(msg="Select data entry form")
for form in forms:
action = form.createuiaction()
valid, failreasons = form.valid
if not valid:
roam.utils.warning("Form {} failed to load".format(form.label))
roam.utils.warning("Reasons {}".format(failreasons))
action.triggered.connect(partial(self.showformerror, form))
else:
action.triggered.connect(partial(self.loadform, form))
formpicker.addAction(action)
formpicker.exec_()
def showformerror(self, form):
pass
def viewurl(self, url):
"""
Open a URL in Roam
:param url:
:return:
"""
key = url.toString().lstrip('file://')
try:
# Hack. Eww fix me.
data, imagetype = roam.htmlviewer.images[os.path.basename(key)]
pix = QPixmap()
if imagetype == 'base64':
pix.loadFromData(data)
else:
pix.load(data)
self.openimage(pix)
except KeyError:
pix = QPixmap()
pix.load(key)
if pix.isNull():
QDesktopServices.openUrl(url)
return
self.openimage(pix)
def openimage(self, pixmap):
viewer = ImageViewer(self.stackedWidget)
viewer.resize(self.stackedWidget.size())
viewer.openimage(pixmap)
def settingsupdated(self, settings):
self.show()
self.actionGPS.updateGPSPort()
def updatestatuslabel(self):
extent = self.canvas.extent()
self.positionlabel.setText("Map Center: {}".format(
extent.center().toString()))
def on_geometryedit(self, form, feature):
layer = form.QGISLayer
self.reloadselection(layer, updated=[feature])
self.currentfeatureband.setToGeometry(feature.geometry(), layer)
def reloadselection(self, layer, deleted=[], updated=[]):
"""
Reload the selection after features have been updated or deleted.
:param layer:
:param deleted:
:param updated:
:return:
"""
selectedfeatures = self.currentselection[layer]
# Update any features that have changed.
for updatedfeature in updated:
oldfeatures = [
f for f in selectedfeatures if f.id() == updatedfeature.id()
]
for feature in oldfeatures:
self.currentselection[layer].remove(feature)
self.currentselection[layer].append(updatedfeature)
# Delete any old ones
for deletedid in deleted:
oldfeatures = [f for f in selectedfeatures if f.id() == deletedid]
for feature in oldfeatures:
self.currentselection[layer].remove(feature)
RoamEvents.selectionchanged.emit(self.currentselection)
def highlightselection(self, results):
self.clearselection()
for layer, features in results.iteritems():
band = self.selectionbands[layer]
band.setColor(QColor(255, 0, 0, 200))
band.setIconSize(20)
band.setWidth(2)
band.setBrushStyle(Qt.NoBrush)
band.reset(layer.geometryType())
for feature in features:
band.addGeometry(feature.geometry(), layer)
def clearselection(self):
# Clear the main selection rubber band
self.currentfeatureband.reset()
# Clear the rest
for band in self.selectionbands.itervalues():
band.reset()
self.editfeaturestack = []
def highlightfeature(self, layer, feature, features):
self.clearselection()
self.highlightselection({layer: features})
self.currentfeatureband.setToGeometry(feature.geometry(), layer)
def showmap(self):
self.actionMap.setVisible(True)
self.actionLegend.setVisible(True)
self.actionMap.trigger()
def hidedataentry(self):
self.actionDataEntry.setVisible(False)
def showdataentry(self):
self.actionDataEntry.setVisible(True)
self.actionDataEntry.trigger()
def dataentrychanged(self, index):
self.clearCapatureTools()
if not index.isValid():
return
modelindex = index
# modelindex = self.dataentrymodel.index(index, 0)
form = modelindex.data(Qt.UserRole + 1)
self.dataentryselection.setCurrentIndex(index.row())
self.createCaptureButtons(form)
def raiseerror(self, *exinfo):
info = traceback.format_exception(*exinfo)
item = self.bar.pushError(
QApplication.translate(
'MainWindowPy',
'Seems something has gone wrong. Press for more details', None,
QApplication.UnicodeUTF8), info)
def setMapTool(self, tool, *args):
self.canvas.setMapTool(tool)
def homeview(self):
"""
Zoom the mapview canvas to the extents the project was opened at i.e. the
default extent.
"""
self.canvas.setExtent(self.defaultextent)
self.canvas.refresh()
def connectButtons(self):
def connectAction(action, tool):
action.toggled.connect(partial(self.setMapTool, tool))
def cursor(name):
pix = QPixmap(name)
pix = pix.scaled(QSize(24, 24))
return QCursor(pix)
self.zoomInTool = QgsMapToolZoom(self.canvas, False)
self.zoomOutTool = QgsMapToolZoom(self.canvas, True)
self.panTool = PanTool(self.canvas)
self.infoTool = InfoTool(self.canvas)
connectAction(self.actionZoom_In, self.zoomInTool)
connectAction(self.actionZoom_Out, self.zoomOutTool)
connectAction(self.actionPan, self.panTool)
connectAction(self.actionInfo, self.infoTool)
self.zoomInTool.setCursor(cursor(':/icons/in'))
self.zoomOutTool.setCursor(cursor(':/icons/out'))
self.infoTool.setCursor(cursor(':/icons/info'))
self.actionRaster.triggered.connect(self.toggleRasterLayers)
self.infoTool.infoResults.connect(RoamEvents.selectionchanged.emit)
self.actionHome.triggered.connect(self.homeview)
self.actionQuit.triggered.connect(self.exit)
def getcaptureactions(self):
for action in self.projecttoolbar.actions():
if action.property('dataentry'):
yield action
def clearCapatureTools(self):
captureselected = False
for action in self.projecttoolbar.actions():
if action.objectName() == "capture" and action.isChecked():
captureselected = True
if action.property('dataentry'):
self.projecttoolbar.removeAction(action)
return captureselected
def createCaptureButtons(self, form):
tool = form.getMaptool()(self.canvas)
for action in tool.actions:
# Create the action here.
if action.ismaptool:
action.toggled.connect(partial(self.setMapTool, tool))
# Set the action as a data entry button so we can remove it later.
action.setProperty("dataentry", True)
self.editgroup.addAction(action)
self.layerbuttons.append(action)
self.projecttoolbar.insertAction(self.topspaceraction, action)
action.setChecked(action.isdefault)
if hasattr(tool, 'geometryComplete'):
add = partial(self.addNewFeature, form)
tool.geometryComplete.connect(add)
else:
tool.finished.connect(self.openForm)
tool.error.connect(partial(self.showUIMessage, form.label))
def loadform(self, form):
self.clearCapatureTools()
self.dataentryselection.setIcon(QIcon(form.icon))
self.dataentryselection.setText(form.icontext)
self.createCaptureButtons(form)
def clearToolRubberBand(self):
"""
Clear the rubber band of the active tool if it has one
"""
tool = self.canvas.mapTool()
try:
tool.clearBand()
except AttributeError:
# No clearBand method found, but that's cool.
pass
def showhelp(self, url):
help = HelpPage(self.stackedWidget)
help.setHelpPage(url)
help.show()
def dataentryfinished(self):
self.hidedataentry()
self.showmap()
self.cleartempobjects()
self.infodock.refreshcurrent()
def featuredeleted(self, layer, featureid):
self.dataentryfinished()
self.reloadselection(layer, deleted=[featureid])
self.canvas.refresh()
def featureSaved(self):
self.dataentryfinished()
self.canvas.refresh()
def failSave(self, messages):
self.bar.pushError("Error when saving changes.", messages)
def cleartempobjects(self):
self.currentfeatureband.reset()
self.clearToolRubberBand()
def formrejected(self, message, level):
self.dataentryfinished()
if message:
RoamEvents.raisemessage("Form Message", message, level, duration=2)
self.cleartempobjects()
def openForm(self, form, feature, editmode):
"""
Open the form that is assigned to the layer
"""
self.currentfeatureband.setToGeometry(feature.geometry(),
form.QGISLayer)
self.showdataentry()
self.dataentrywidget.openform(feature=feature,
form=form,
project=self.project,
editmode=editmode)
def editfeaturegeometry(self, form, feature, newgeometry):
layer = form.QGISLayer
layer.startEditing()
feature.setGeometry(newgeometry)
layer.updateFeature(feature)
saved = layer.commitChanges()
map(roam.utils.error, layer.commitErrors())
self.canvas.refresh()
RoamEvents.editgeometry_complete.emit(form, feature)
def addNewFeature(self, form, geometry):
"""
Add a new new feature to the given layer
"""
layer = form.QGISLayer
if layer.geometryType() in [
QGis.WKBMultiLineString, QGis.WKBMultiPoint,
QGis.WKBMultiPolygon
]:
geometry.convertToMultiType()
try:
form, feature = self.editfeaturestack.pop()
self.editfeaturegeometry(form, feature, newgeometry=geometry)
return
except IndexError:
pass
layer = form.QGISLayer
fields = layer.pendingFields()
feature = QgsFeature(fields)
feature.setGeometry(geometry)
for index in xrange(fields.count()):
pkindexes = layer.dataProvider().pkAttributeIndexes()
if index in pkindexes and layer.dataProvider().name(
) == 'spatialite':
continue
value = layer.dataProvider().defaultValue(index)
feature[index] = value
self.openForm(form, feature, editmode=False)
def exit(self):
"""
Exit the application.
"""
QApplication.exit(0)
def showInfoResults(self, results):
forms = {}
for layer in results.keys():
layername = layer.name()
if not layername in forms:
forms[layername] = list(self.project.formsforlayer(layername))
self.currentselection = results
self.infodock.setResults(results, forms)
self.infodock.show()
def toggleRasterLayers(self):
"""
Toggle all raster layers on or off.
"""
if not self.canvaslayers:
return
#Freeze the canvas to save on UI refresh
self.canvas.freeze()
for layer in self.canvaslayers:
if layer.layer().type() == QgsMapLayer.RasterLayer:
layer.setVisible(not layer.isVisible())
# Really!? We have to reload the whole layer set every time?
# WAT?
self.canvas.setLayerSet(self.canvaslayers)
self.canvas.freeze(False)
self.canvas.refresh()
def missingLayers(self, layers):
"""
Called when layers have failed to load from the current project
"""
roam.utils.warning("Missing layers")
map(roam.utils.warning, layers)
missinglayers = roam.messagebaritems.MissingLayerItem(layers,
parent=self.bar)
self.bar.pushItem(missinglayers)
def loadprojects(self, projects):
"""
Load the given projects into the project
list
"""
projects = list(projects)
self.projectwidget.loadProjectList(projects)
self.syncwidget.loadprojects(projects)
def updatePage(self, action):
"""
Update the current stack page based on the current selected
action
"""
page = action.property("page")
self.stackedWidget.setCurrentIndex(page)
def show(self):
"""
Override show method. Handles showing the app in fullscreen
mode or just maximized
"""
fullscreen = roam.config.settings.get("fullscreen", False)
if fullscreen:
self.showFullScreen()
else:
self.showMaximized()
def viewprojects(self):
self.stackedWidget.setCurrentIndex(1)
@roam.utils.timeit
def _readProject(self, doc):
"""
readProject is called by QgsProject once the map layer has been
populated with all the layers
"""
parser = ProjectParser(doc)
canvasnode = parser.canvasnode
self.canvas.freeze()
self.canvas.mapRenderer().readXML(canvasnode)
self.canvaslayers = parser.canvaslayers()
self.canvas.setLayerSet(self.canvaslayers)
#red = QgsProject.instance().readNumEntry( "Gui", "/CanvasColorRedPart", 255 )[0];
#green = QgsProject.instance().readNumEntry( "Gui", "/CanvasColorGreenPart", 255 )[0];
#blue = QgsProject.instance().readNumEntry( "Gui", "/CanvasColorBluePart", 255 )[0];
#color = QColor(red, green, blue);
#self.canvas.setCanvasColor(color)
self.canvas.updateScale()
self.projectOpened()
self.canvas.freeze(False)
self.canvas.refresh()
GPS.crs = self.canvas.mapRenderer().destinationCrs()
self.showmap()
@roam.utils.timeit
def projectOpened(self):
"""
Called when a new project is opened in QGIS.
"""
projectpath = QgsProject.instance().fileName()
self.project = Project.from_folder(os.path.dirname(projectpath))
self.projectlabel.setText("Project: {}".format(self.project.name))
try:
firstform = self.project.forms[0]
self.loadform(self.project.forms[0])
self.dataentryselection.setVisible(True)
except IndexError:
self.dataentryselection.setVisible(False)
# Enable the raster layers button only if the project contains a raster layer.
layers = QgsMapLayerRegistry.instance().mapLayers().values()
hasrasters = any(layer.type() == QgsMapLayer.RasterLayer
for layer in layers)
self.actionRaster.setEnabled(hasrasters)
self.defaultextent = self.canvas.extent()
roam.utils.info("Extent: {}".format(self.defaultextent.toString()))
# Show panels
for panel in self.project.getPanels():
self.mainwindow.addDockWidget(Qt.BottomDockWidgetArea, panel)
self.panels.append(panel)
self.infoTool.selectionlayers = self.project.selectlayersmapping()
layers = self.project.legendlayersmapping().values()
self.legendpage.updateitems(layers)
self.actionPan.trigger()
#noinspection PyArgumentList
@roam.utils.timeit
def loadProject(self, project):
"""
Load a project into the application .
"""
roam.utils.log(project)
roam.utils.log(project.name)
roam.utils.log(project.projectfile)
roam.utils.log(project.valid)
(passed, message) = project.onProjectLoad()
if not passed:
self.bar.pushMessage("Project load rejected",
"Sorry this project couldn't"
"be loaded. Click for me details.",
QgsMessageBar.WARNING,
extrainfo=message)
return
self.actionMap.trigger()
self.closeProject()
self.canvas.refresh()
self.canvas.repaint()
RoamEvents.selectioncleared.emit()
# No idea why we have to set this each time. Maybe QGIS deletes it for
# some reason.
self.badLayerHandler = BadLayerHandler(callback=self.missingLayers)
QgsProject.instance().setBadLayerHandler(self.badLayerHandler)
self.stackedWidget.setCurrentIndex(3)
self.projectloading_label.setText("Project {} Loading".format(
project.name))
pixmap = QPixmap(project.splash)
w = self.projectimage.width()
h = self.projectimage.height()
self.projectimage.setPixmap(pixmap.scaled(w, h, Qt.KeepAspectRatio))
QApplication.processEvents()
QDir.setCurrent(os.path.dirname(project.projectfile))
fileinfo = QFileInfo(project.projectfile)
QgsProject.instance().read(fileinfo)
def closeProject(self):
"""
Close the current open project
"""
self.clearCapatureTools()
self.canvas.freeze()
QgsMapLayerRegistry.instance().removeAllMapLayers()
self.canvas.clear()
self.canvas.freeze(False)
for panel in self.panels:
self.removeDockWidget(panel)
del panel
# Remove all the old buttons
for action in self.layerbuttons:
self.editgroup.removeAction(action)
self.panels = []
self.project = None
self.dataentrywidget.clear()
self.hidedataentry()
self.infodock.close()