def setupUI(self):
self.browser = browser = SimpleServerBrowser()
self.player = player = video.Player() #VideoPlayer()
dock = QDockWidget(u'Przeglądarka serwerów', self)
dock.setContentsMargins(0, 0, 0, 0)
dock.setAllowedAreas(Qt.LeftDockWidgetArea | Qt.RightDockWidgetArea)
dock.setWidget(browser)
self.addDockWidget(Qt.LeftDockWidgetArea, dock)
#self.setCentralWidget(player.videoWidget())
self.setCentralWidget(player.videoWidget)
dock = QDockWidget(self)
dock.setAllowedAreas(Qt.BottomDockWidgetArea)
dock.setWidget(player.controlPanel)
dock.setFloating(False)
dock.setFeatures(QDockWidget.NoDockWidgetFeatures)
self.addDockWidget(Qt.BottomDockWidgetArea, dock)
QWidget.connect(self.browser, SIGNAL("play"), self.play)
self.resize(800, 480)
class ViewerWnd(QMainWindow):
def __init__(self, app, dictOpts):
QMainWindow.__init__(self)
self.setWindowTitle("PostGIS Layer Viewer - v.1.6.1")
self.setTabPosition(Qt.BottomDockWidgetArea, QTabWidget.North)
self.canvas = QgsMapCanvas()
self.canvas.setCanvasColor(Qt.white)
self.canvas.useImageToRender(True)
self.canvas.enableAntiAliasing(True)
self.setCentralWidget(self.canvas)
actionZoomIn = QAction(QIcon(imgs_dir + "mActionZoomIn.png"),
QString("Zoom in"), self)
actionZoomOut = QAction(QIcon(imgs_dir + "mActionZoomOut.png"),
QString("Zoom out"), self)
actionPan = QAction(QIcon(imgs_dir + "mActionPan.png"), QString("Pan"),
self)
actionZoomFullExtent = QAction(
QIcon(imgs_dir + "mActionZoomFullExtent.png"),
QString("Zoom full"), self)
actionZoomIn.setCheckable(True)
actionZoomOut.setCheckable(True)
actionPan.setCheckable(True)
self.connect(actionZoomIn, SIGNAL("triggered()"), self.zoomIn)
self.connect(actionZoomOut, SIGNAL("triggered()"), self.zoomOut)
self.connect(actionPan, SIGNAL("triggered()"), self.pan)
self.connect(actionZoomFullExtent, SIGNAL("triggered()"),
self.zoomFullExtent)
self.actionGroup = QActionGroup(self)
self.actionGroup.addAction(actionPan)
self.actionGroup.addAction(actionZoomIn)
self.actionGroup.addAction(actionZoomOut)
# Create the toolbar
self.toolbar = self.addToolBar("Map tools")
self.toolbar.addAction(actionPan)
self.toolbar.addAction(actionZoomIn)
self.toolbar.addAction(actionZoomOut)
self.toolbar.addAction(actionZoomFullExtent)
# Create the map tools
self.toolPan = QgsMapToolPan(self.canvas)
self.toolPan.setAction(actionPan)
self.toolZoomIn = QgsMapToolZoom(self.canvas, False) # false = in
self.toolZoomIn.setAction(actionZoomIn)
self.toolZoomOut = QgsMapToolZoom(self.canvas, True) # true = out
self.toolZoomOut.setAction(actionZoomOut)
# Create the statusbar
self.statusbar = QStatusBar(self)
self.statusbar.setObjectName("statusbar")
self.setStatusBar(self.statusbar)
self.lblXY = QLabel()
self.lblXY.setFrameStyle(QFrame.Box)
self.lblXY.setMinimumWidth(170)
self.lblXY.setAlignment(Qt.AlignCenter)
self.statusbar.setSizeGripEnabled(False)
self.statusbar.addPermanentWidget(self.lblXY, 0)
self.lblScale = QLabel()
self.lblScale.setFrameStyle(QFrame.StyledPanel)
self.lblScale.setMinimumWidth(140)
self.statusbar.addPermanentWidget(self.lblScale, 0)
self.createLegendWidget() # Create the legend widget
self.connect(app, SIGNAL("loadPgLayer"), self.loadLayer)
self.connect(self.canvas, SIGNAL("scaleChanged(double)"),
self.changeScale)
self.connect(self.canvas, SIGNAL("xyCoordinates(const QgsPoint&)"),
self.updateXY)
self.pan() # Default
self.plugins = Plugins(self, self.canvas, dictOpts['-h'],
dictOpts['-p'], dictOpts['-d'], dictOpts['-U'],
dictOpts['-W'])
self.createAboutWidget()
self.layerSRID = '-1'
self.loadLayer(dictOpts)
def zoomIn(self):
self.canvas.setMapTool(self.toolZoomIn)
def zoomOut(self):
self.canvas.setMapTool(self.toolZoomOut)
def pan(self):
self.canvas.setMapTool(self.toolPan)
def zoomFullExtent(self):
self.canvas.zoomToFullExtent()
def about(self):
pass
def createLegendWidget(self):
""" Create the map legend widget and associate it to the canvas """
self.legend = Legend(self)
self.legend.setCanvas(self.canvas)
self.legend.setObjectName("theMapLegend")
self.LegendDock = QDockWidget("Layers", self)
self.LegendDock.setObjectName("legend")
self.LegendDock.setTitleBarWidget(QWidget())
self.LegendDock.setWidget(self.legend)
self.LegendDock.setContentsMargins(0, 0, 0, 0)
self.addDockWidget(Qt.BottomDockWidgetArea, self.LegendDock)
def createAboutWidget(self):
self.AboutDock = QDockWidget("About", self)
self.AboutDock.setObjectName("about")
self.AboutDock.setTitleBarWidget(QWidget())
self.AboutDock.setContentsMargins(0, 0, 0, 0)
self.tabifyDockWidget(self.LegendDock, self.AboutDock)
self.LegendDock.raise_() # legendDock at the top
from PyQt4.QtCore import QRect
from PyQt4.QtGui import QSizePolicy, QGridLayout, QFont
font = QFont()
font.setFamily("Sans Serif")
font.setPointSize(8.7)
self.AboutWidget = QWidget()
self.AboutWidget.setFont(font)
self.AboutWidget.setObjectName("AboutWidget")
self.AboutDock.setWidget(self.AboutWidget)
self.labelAbout = QLabel(self.AboutWidget)
self.labelAbout.setAlignment(Qt.AlignCenter)
self.labelAbout.setWordWrap(True)
self.gridLayout = QGridLayout(self.AboutWidget)
self.gridLayout.setContentsMargins(0, 0, 0, 0)
self.gridLayout.setObjectName("gridLayout")
self.gridLayout.addWidget(self.labelAbout, 0, 1, 1, 1)
self.labelAbout.setTextInteractionFlags(Qt.LinksAccessibleByMouse
| Qt.LinksAccessibleByKeyboard
| Qt.TextSelectableByKeyboard
| Qt.TextSelectableByMouse)
self.labelAbout.setOpenExternalLinks(True)
self.labelAbout.setText("<html><head/><body><a href=\"http://geotux.tuxfamily.org/index.php/en/geo-blogs/item/293-consola-sql-para-plugin-pgadmin-postgis-viewer\">PostGIS Layer Viewer</a> v.1.6.1 (2015.02.24)<br \><br \>" \
"Copyright (c) 2010 Ivan Mincik,<br \>[email protected]<br \>" \
u"Copyright (c) 2011-2015 Germán Carrillo,<br \>[email protected]<br \><br \>" \
"<i>Licensed under the terms of GNU GPL v.2.0</i><br \><br \>" \
"Based on PyQGIS. Plugin Fast SQL Layer by Pablo T. Carreira.</body></html>" )
def loadLayer(self, dictOpts):
print 'I: Loading the layer...'
self.layerSRID = dictOpts[
'srid'] # To access the SRID when querying layer properties
if not self.isActiveWindow():
self.activateWindow()
self.raise_()
if dictOpts['type'] == 'vector':
# QGIS connection
uri = QgsDataSourceURI()
uri.setConnection(dictOpts['-h'], dictOpts['-p'], dictOpts['-d'],
dictOpts['-U'], dictOpts['-W'])
uri.setDataSource(dictOpts['-s'], dictOpts['-t'], dictOpts['-g'])
layer = QgsVectorLayer(uri.uri(),
dictOpts['-s'] + '.' + dictOpts['-t'],
"postgres")
elif dictOpts['type'] == 'raster':
connString = "PG: dbname=%s host=%s user=%s password=%s port=%s mode=2 " \
"schema=%s column=%s table=%s" % ( dictOpts['-d'], dictOpts['-h'],
dictOpts['-U'], dictOpts['-W'], dictOpts['-p'], dictOpts['-s'],
dictOpts['col'], dictOpts['-t'] )
layer = QgsRasterLayer(connString,
dictOpts['-s'] + '.' + dictOpts['-t'])
if layer.isValid():
layer.setContrastEnhancement(
QgsContrastEnhancement.StretchToMinimumMaximum)
self.addLayer(layer, self.layerSRID)
def addLayer(self, layer, srid='-1'):
if layer.isValid():
# Only in case that srid != -1, read the layer SRS properties, otherwise don't since it will return 4326
if srid != '-1':
self.layerSRID = layer.crs().description() + ' (' + str(
layer.crs().postgisSrid()) + ')'
else:
self.layerSRID = 'Unknown SRS (-1)'
if self.canvas.layerCount() == 0:
self.canvas.setExtent(layer.extent())
if srid != '-1':
print 'I: Map SRS (EPSG): %s' % self.layerSRID
self.canvas.setMapUnits(layer.crs().mapUnits())
else:
print 'I: Unknown Reference System'
self.canvas.setMapUnits(0) # 0: QGis.Meters
return QgsMapLayerRegistry.instance().addMapLayer(layer)
return False
def activeLayer(self):
""" Returns the active layer in the layer list widget """
return self.legend.activeLayer()
def getLayerProperties(self, l):
""" Create a layer-properties string (l:layer)"""
print 'I: Generating layer properties...'
if l.type() == 0: # Vector
wkbType = [
"WKBUnknown", "WKBPoint", "WKBLineString", "WKBPolygon",
"WKBMultiPoint", "WKBMultiLineString", "WKBMultiPolygon",
"WKBNoGeometry", "WKBPoint25D", "WKBLineString25D",
"WKBPolygon25D", "WKBMultiPoint25D", "WKBMultiLineString25D",
"WKBMultiPolygon25D"
]
properties = "Source: %s\n" \
"Geometry type: %s\n" \
"Number of features: %s\n" \
"Number of fields: %s\n" \
"SRS (EPSG): %s\n" \
"Extent: %s " \
% ( l.source(), wkbType[l.wkbType()], l.featureCount(),
l.dataProvider().fields().count(), self.layerSRID,
l.extent().toString() )
elif l.type() == 1: # Raster
rType = [
"GrayOrUndefined (single band)", "Palette (single band)",
"Multiband", "ColorLayer"
]
properties = "Source: %s\n" \
"Raster type: %s\n" \
"Width-Height (pixels): %sx%s\n" \
"Bands: %s\n" \
"SRS (EPSG): %s\n" \
"Extent: %s" \
% ( l.source(), rType[l.rasterType()], l.width(), l.height(),
l.bandCount(), self.layerSRID, l.extent().toString() )
self.layerSRID = '-1' # Initialize the srid
return properties
def changeScale(self, scale):
self.lblScale.setText("Scale 1:" + formatNumber(scale))
def updateXY(self, p):
if self.canvas.mapUnits() == 2: # Degrees
self.lblXY.setText( formatToDegrees( p.x() ) + " | " \
+ formatToDegrees( p.y() ) )
else: # Unidad lineal
self.lblXY.setText( formatNumber( p.x() ) + " | " \
+ formatNumber( p.y() ) + "" )
class ViewerWnd( QMainWindow ):
def __init__( self, app, dictOpts ):
QMainWindow.__init__( self )
self.setWindowTitle( "PostGIS Layer Viewer - v.1.6.1" )
self.setTabPosition( Qt.BottomDockWidgetArea, QTabWidget.North )
self.canvas = QgsMapCanvas()
self.canvas.setCanvasColor( Qt.white )
self.canvas.useImageToRender( True )
self.canvas.enableAntiAliasing( True )
self.setCentralWidget( self.canvas )
actionZoomIn = QAction( QIcon( imgs_dir + "mActionZoomIn.png" ), QString( "Zoom in" ), self )
actionZoomOut = QAction( QIcon( imgs_dir + "mActionZoomOut.png" ), QString( "Zoom out" ), self )
actionPan = QAction( QIcon( imgs_dir + "mActionPan.png" ), QString( "Pan" ), self )
actionZoomFullExtent = QAction( QIcon( imgs_dir + "mActionZoomFullExtent.png" ), QString( "Zoom full" ), self )
actionZoomIn.setCheckable( True )
actionZoomOut.setCheckable( True )
actionPan.setCheckable( True )
self.connect(actionZoomIn, SIGNAL( "triggered()" ), self.zoomIn )
self.connect(actionZoomOut, SIGNAL( "triggered()" ), self.zoomOut )
self.connect(actionPan, SIGNAL( "triggered()" ), self.pan )
self.connect(actionZoomFullExtent, SIGNAL( "triggered()" ), self.zoomFullExtent )
self.actionGroup = QActionGroup( self )
self.actionGroup.addAction( actionPan )
self.actionGroup.addAction( actionZoomIn )
self.actionGroup.addAction( actionZoomOut )
# Create the toolbar
self.toolbar = self.addToolBar( "Map tools" )
self.toolbar.addAction( actionPan )
self.toolbar.addAction( actionZoomIn )
self.toolbar.addAction( actionZoomOut )
self.toolbar.addAction( actionZoomFullExtent )
# Create the map tools
self.toolPan = QgsMapToolPan( self.canvas )
self.toolPan.setAction( actionPan )
self.toolZoomIn = QgsMapToolZoom( self.canvas, False ) # false = in
self.toolZoomIn.setAction( actionZoomIn )
self.toolZoomOut = QgsMapToolZoom( self.canvas, True ) # true = out
self.toolZoomOut.setAction( actionZoomOut )
# Create the statusbar
self.statusbar = QStatusBar( self )
self.statusbar.setObjectName( "statusbar" )
self.setStatusBar( self.statusbar )
self.lblXY = QLabel()
self.lblXY.setFrameStyle( QFrame.Box )
self.lblXY.setMinimumWidth( 170 )
self.lblXY.setAlignment( Qt.AlignCenter )
self.statusbar.setSizeGripEnabled( False )
self.statusbar.addPermanentWidget( self.lblXY, 0 )
self.lblScale = QLabel()
self.lblScale.setFrameStyle( QFrame.StyledPanel )
self.lblScale.setMinimumWidth( 140 )
self.statusbar.addPermanentWidget( self.lblScale, 0 )
self.createLegendWidget() # Create the legend widget
self.connect( app, SIGNAL( "loadPgLayer" ), self.loadLayer )
self.connect( self.canvas, SIGNAL( "scaleChanged(double)" ),
self.changeScale )
self.connect( self.canvas, SIGNAL( "xyCoordinates(const QgsPoint&)" ),
self.updateXY )
self.pan() # Default
self.plugins = Plugins( self, self.canvas, dictOpts['-h'], dictOpts['-p'], dictOpts['-d'], dictOpts['-U'], dictOpts['-W'] )
self.createAboutWidget()
self.layerSRID = '-1'
self.loadLayer( dictOpts )
def zoomIn( self ):
self.canvas.setMapTool( self.toolZoomIn )
def zoomOut( self ):
self.canvas.setMapTool( self.toolZoomOut )
def pan( self ):
self.canvas.setMapTool( self.toolPan )
def zoomFullExtent( self ):
self.canvas.zoomToFullExtent()
def about( self ):
pass
def createLegendWidget( self ):
""" Create the map legend widget and associate it to the canvas """
self.legend = Legend( self )
self.legend.setCanvas( self.canvas )
self.legend.setObjectName( "theMapLegend" )
self.LegendDock = QDockWidget( "Layers", self )
self.LegendDock.setObjectName( "legend" )
self.LegendDock.setTitleBarWidget( QWidget() )
self.LegendDock.setWidget( self.legend )
self.LegendDock.setContentsMargins ( 0, 0, 0, 0 )
self.addDockWidget( Qt.BottomDockWidgetArea, self.LegendDock )
def createAboutWidget( self ):
self.AboutDock = QDockWidget( "About", self )
self.AboutDock.setObjectName( "about" )
self.AboutDock.setTitleBarWidget( QWidget() )
self.AboutDock.setContentsMargins( 0, 0, 0, 0 )
self.tabifyDockWidget( self.LegendDock, self.AboutDock )
self.LegendDock.raise_() # legendDock at the top
from PyQt4.QtCore import QRect
from PyQt4.QtGui import QSizePolicy, QGridLayout, QFont
font = QFont()
font.setFamily("Sans Serif")
font.setPointSize(8.7)
self.AboutWidget = QWidget()
self.AboutWidget.setFont( font )
self.AboutWidget.setObjectName("AboutWidget")
self.AboutDock.setWidget( self.AboutWidget )
self.labelAbout = QLabel( self.AboutWidget )
self.labelAbout.setAlignment(Qt.AlignCenter)
self.labelAbout.setWordWrap(True)
self.gridLayout = QGridLayout(self.AboutWidget)
self.gridLayout.setContentsMargins(0, 0, 0, 0)
self.gridLayout.setObjectName("gridLayout")
self.gridLayout.addWidget(self.labelAbout, 0, 1, 1, 1)
self.labelAbout.setTextInteractionFlags(Qt.LinksAccessibleByMouse|Qt.LinksAccessibleByKeyboard|Qt.TextSelectableByKeyboard|Qt.TextSelectableByMouse)
self.labelAbout.setOpenExternalLinks( True )
self.labelAbout.setText("<html><head/><body><a href=\"http://geotux.tuxfamily.org/index.php/en/geo-blogs/item/293-consola-sql-para-plugin-pgadmin-postgis-viewer\">PostGIS Layer Viewer</a> v.1.6.1 (2015.02.24)<br \><br \>" \
"Copyright (c) 2010 Ivan Mincik,<br \>[email protected]<br \>" \
u"Copyright (c) 2011-2015 Germán Carrillo,<br \>[email protected]<br \><br \>" \
"<i>Licensed under the terms of GNU GPL v.2.0</i><br \><br \>" \
"Based on PyQGIS. Plugin Fast SQL Layer by Pablo T. Carreira.</body></html>" )
def loadLayer( self, dictOpts ):
print 'I: Loading the layer...'
self.layerSRID = dictOpts[ 'srid' ] # To access the SRID when querying layer properties
if not self.isActiveWindow():
self.activateWindow()
self.raise_()
if dictOpts['type'] == 'vector':
# QGIS connection
uri = QgsDataSourceURI()
uri.setConnection( dictOpts['-h'], dictOpts['-p'], dictOpts['-d'],
dictOpts['-U'], dictOpts['-W'] )
uri.setDataSource( dictOpts['-s'], dictOpts['-t'], dictOpts['-g'] )
layer = QgsVectorLayer( uri.uri(), dictOpts['-s'] + '.' + dictOpts['-t'],
"postgres" )
elif dictOpts['type'] == 'raster':
connString = "PG: dbname=%s host=%s user=%s password=%s port=%s mode=2 " \
"schema=%s column=%s table=%s" % ( dictOpts['-d'], dictOpts['-h'],
dictOpts['-U'], dictOpts['-W'], dictOpts['-p'], dictOpts['-s'],
dictOpts['col'], dictOpts['-t'] )
layer = QgsRasterLayer( connString, dictOpts['-s'] + '.' + dictOpts['-t'] )
if layer.isValid():
layer.setContrastEnhancement( QgsContrastEnhancement.StretchToMinimumMaximum )
self.addLayer( layer, self.layerSRID )
def addLayer( self, layer, srid='-1' ):
if layer.isValid():
# Only in case that srid != -1, read the layer SRS properties, otherwise don't since it will return 4326
if srid != '-1':
self.layerSRID = layer.crs().description() + ' (' + str( layer.crs().postgisSrid() ) + ')'
else:
self.layerSRID = 'Unknown SRS (-1)'
if self.canvas.layerCount() == 0:
self.canvas.setExtent( layer.extent() )
if srid != '-1':
print 'I: Map SRS (EPSG): %s' % self.layerSRID
self.canvas.setMapUnits( layer.crs().mapUnits() )
else:
print 'I: Unknown Reference System'
self.canvas.setMapUnits( 0 ) # 0: QGis.Meters
return QgsMapLayerRegistry.instance().addMapLayer( layer )
return False
def activeLayer( self ):
""" Returns the active layer in the layer list widget """
return self.legend.activeLayer()
def getLayerProperties( self, l ):
""" Create a layer-properties string (l:layer)"""
print 'I: Generating layer properties...'
if l.type() == 0: # Vector
wkbType = ["WKBUnknown","WKBPoint","WKBLineString","WKBPolygon",
"WKBMultiPoint","WKBMultiLineString","WKBMultiPolygon",
"WKBNoGeometry","WKBPoint25D","WKBLineString25D","WKBPolygon25D",
"WKBMultiPoint25D","WKBMultiLineString25D","WKBMultiPolygon25D"]
properties = "Source: %s\n" \
"Geometry type: %s\n" \
"Number of features: %s\n" \
"Number of fields: %s\n" \
"SRS (EPSG): %s\n" \
"Extent: %s " \
% ( l.source(), wkbType[l.wkbType()], l.featureCount(),
l.dataProvider().fields().count(), self.layerSRID,
l.extent().toString() )
elif l.type() == 1: # Raster
rType = [ "GrayOrUndefined (single band)", "Palette (single band)", "Multiband", "ColorLayer" ]
properties = "Source: %s\n" \
"Raster type: %s\n" \
"Width-Height (pixels): %sx%s\n" \
"Bands: %s\n" \
"SRS (EPSG): %s\n" \
"Extent: %s" \
% ( l.source(), rType[l.rasterType()], l.width(), l.height(),
l.bandCount(), self.layerSRID, l.extent().toString() )
self.layerSRID = '-1' # Initialize the srid
return properties
def changeScale( self, scale ):
self.lblScale.setText( "Scale 1:" + formatNumber( scale ) )
def updateXY( self, p ):
if self.canvas.mapUnits() == 2: # Degrees
self.lblXY.setText( formatToDegrees( p.x() ) + " | " \
+ formatToDegrees( p.y() ) )
else: # Unidad lineal
self.lblXY.setText( formatNumber( p.x() ) + " | " \
+ formatNumber( p.y() ) + "" )
class ViewerWnd(QMainWindow):
def __init__(self, app, dictOpts):
QMainWindow.__init__(self)
self.canvas = QgsMapCanvas()
self.canvas.setCanvasColor(Qt.white)
self.canvas.useImageToRender(True)
self.canvas.enableAntiAliasing(True)
self.setCentralWidget(self.canvas)
actionZoomIn = QAction(QIcon(imgs_dir + "mActionZoomIn.png"), QString("Zoom in"), self)
actionZoomOut = QAction(QIcon(imgs_dir + "mActionZoomOut.png"), QString("Zoom out"), self)
actionPan = QAction(QIcon(imgs_dir + "mActionPan.png"), QString("Pan"), self)
actionZoomIn.setCheckable(True)
actionZoomOut.setCheckable(True)
actionPan.setCheckable(True)
self.connect(actionZoomIn, SIGNAL("triggered()"), self.zoomIn)
self.connect(actionZoomOut, SIGNAL("triggered()"), self.zoomOut)
self.connect(actionPan, SIGNAL("triggered()"), self.pan)
# Create the toolbar
self.toolbar = self.addToolBar("Map tools")
self.toolbar.addAction(actionZoomIn)
self.toolbar.addAction(actionZoomOut)
self.toolbar.addAction(actionPan)
# Create the map tools
self.toolPan = QgsMapToolPan(self.canvas)
self.toolPan.setAction(actionPan)
self.toolZoomIn = QgsMapToolZoom(self.canvas, False) # false = in
self.toolZoomIn.setAction(actionZoomIn)
self.toolZoomOut = QgsMapToolZoom(self.canvas, True) # true = out
self.toolZoomOut.setAction(actionZoomOut)
# Create the statusbar
self.statusbar = QStatusBar(self)
self.statusbar.setObjectName("statusbar")
self.setStatusBar(self.statusbar)
self.lblXY = QLabel()
self.lblXY.setFrameStyle(QFrame.Box)
self.lblXY.setMinimumWidth(170)
self.lblXY.setAlignment(Qt.AlignCenter)
self.statusbar.setSizeGripEnabled(False)
self.statusbar.addPermanentWidget(self.lblXY, 0)
self.lblScale = QLabel()
self.lblScale.setFrameStyle(QFrame.StyledPanel)
self.lblScale.setMinimumWidth(140)
self.statusbar.addPermanentWidget(self.lblScale, 0)
self.createLegendWidget() # Create the legend widget
self.connect(app, SIGNAL("loadPgLayer"), self.loadLayer)
self.connect(self.canvas, SIGNAL("scaleChanged(double)"), self.changeScale)
self.connect(self.canvas, SIGNAL("xyCoordinates(const QgsPoint&)"), self.updateXY)
self.pan()
self.layerSRID = ""
self.loadLayer(dictOpts)
def zoomIn(self):
self.canvas.setMapTool(self.toolZoomIn)
def zoomOut(self):
self.canvas.setMapTool(self.toolZoomOut)
def pan(self):
self.canvas.setMapTool(self.toolPan)
def createLegendWidget(self):
""" Create the map legend widget and associate to the canvas """
self.legend = Legend(self)
self.legend.setCanvas(self.canvas)
self.legend.setObjectName("theMapLegend")
self.LegendDock = QDockWidget("Layers", self)
self.LegendDock.setObjectName("legend")
# self.LegendDock.setAllowedAreas( Qt.LeftDockWidgetArea | Qt.RightDockWidgetArea )
self.LegendDock.setWidget(self.legend)
self.LegendDock.setContentsMargins(0, 0, 0, 0)
self.addDockWidget(Qt.BottomDockWidgetArea, self.LegendDock)
def loadLayer(self, dictOpts):
print "I: Loading the layer..."
self.layerSRID = dictOpts["srid"] # To access the SRID when querying layer properties
if not self.isActiveWindow():
self.activateWindow()
self.raise_()
if dictOpts["type"] == "vector":
# QGIS connection
uri = QgsDataSourceURI()
uri.setConnection(dictOpts["-h"], dictOpts["-p"], dictOpts["-d"], dictOpts["-U"], dictOpts["-W"])
uri.setDataSource(dictOpts["-s"], dictOpts["-t"], dictOpts["-g"])
layer = QgsVectorLayer(uri.uri(), dictOpts["-s"] + "." + dictOpts["-t"], "postgres")
elif dictOpts["type"] == "raster":
connString = "PG: dbname=%s host=%s user=%s password=%s port=%s schema=%s table=%s" % (
dictOpts["-d"],
dictOpts["-h"],
dictOpts["-U"],
dictOpts["-W"],
dictOpts["-p"],
dictOpts["-s"],
dictOpts["-t"],
)
layer = QgsRasterLayer(connString, dictOpts["-s"] + "." + dictOpts["-t"])
layer.setNoDataValue(-32768)
layer.rasterTransparency().initializeTransparentPixelList(-32768)
if layer.isValid():
if self.canvas.layerCount() == 0:
self.canvas.setExtent(layer.extent())
if dictOpts["srid"] != "-1":
print "I: Map SRS (EPSG): %s" % dictOpts["srid"]
self.canvas.setMapUnits(layer.srs().mapUnits())
else:
print "I: Unknown Reference System"
self.canvas.setMapUnits(0) # 0: QGis.Meters
QgsMapLayerRegistry.instance().addMapLayer(layer)
def getLayerProperties(self, l):
""" Create a layer-properties string (l:layer)"""
print "I: Generating layer properties..."
if l.type() == 0: # Vector
wkbType = [
"WKBUnknown",
"WKBPoint",
"WKBLineString",
"WKBPolygon",
"WKBMultiPoint",
"WKBMultiLineString",
"WKBMultiPolygon",
"WKBNoGeometry",
"WKBPoint25D",
"WKBLineString25D",
"WKBPolygon25D",
"WKBMultiPoint25D",
"WKBMultiLineString25D",
"WKBMultiPolygon25D",
]
properties = (
"Source: %s\n"
"Geometry type: %s\n"
"Number of features: %s\n"
"Number of fields: %s\n"
"SRS (EPSG): %s\n"
"Extent: %s "
% (
l.source(),
wkbType[l.wkbType()],
l.featureCount(),
l.dataProvider().fieldCount(),
self.layerSRID,
l.extent().toString(),
)
)
elif l.type() == 1: # Raster
rType = ["GrayOrUndefined (single band)", "Palette (single band)", "Multiband"]
properties = (
"Source: %s\n"
"Raster type: %s\n"
"Width-Height (pixels): %sx%s\n"
"Bands: %s\n"
"SRS (EPSG): %s\n"
"Extent: %s"
% (
l.source(),
rType[l.rasterType()],
l.width(),
l.height(),
l.bandCount(),
self.layerSRID,
l.extent().toString(),
)
)
return properties
def changeScale(self, scale):
self.lblScale.setText("Scale 1:" + formatNumber(scale))
def updateXY(self, p):
if self.canvas.mapUnits() == 2: # Degrees
self.lblXY.setText(formatToDegrees(p.x()) + " | " + formatToDegrees(p.y()))
else: # Unidad lineal
self.lblXY.setText(formatNumber(p.x()) + " | " + formatNumber(p.y()) + "")
