working on qgis UI

prog/main.py

@@ -2,12 +2,12 @@
 
 from qgis.core import *
 from qgis.gui import *
-from PyQt5.QtWidgets import *
-from PyQt5 import *
-from PyQt5.QtXml import QDomDocument, QDomElement
+from qgis.PyQt.QtXml import QDomDocument, QDomElement
+from qgis.PyQt.QtWidgets import *
+from qgis.PyQt.QtCore import *
 
-import asyncio
 from qasync import QEventLoop, asyncClose, asyncSlot, QApplication
+import asyncio
 
 import communication
 from communication import dt_to_path
@@ -16,38 +16,31 @@ import json
 import sys, os
 
 
-# Supply the path to the qgis install location
 QgsApplication.setPrefixPath("/usr/", True)
-
-# Create a reference to the QgsApplication.
-# Setting the second argument to True enables the GUI.  We need
-# this since this is a custom application.
-
 qgs = QgsApplication([], True)
-
-# load providers
 qgs.initQgis()
-my_crs=QgsCoordinateReferenceSystem(4326)
-QgsProject.instance().setCrs(my_crs)
-
-# Write your code here to load some layers, use processing
-# algorithms, etc.
-
-from qgis.core import QgsSettings
 
-from qgis.gui import *
-from qgis.PyQt.QtWidgets import QAction, QMainWindow
-from qgis.PyQt.QtCore import Qt
+crs_wgs=QgsCoordinateReferenceSystem(4326)
+crs_wgs_mercator=QgsCoordinateReferenceSystem(3857)
+crs_transform = QgsCoordinateTransform(crs_wgs, crs_wgs_mercator, QgsProject.instance())
 
-class MyWnd(QMainWindow):
+class MainWind(QMainWindow):
     def __init__(self):
+        self.map = MapWidget()
         QMainWindow.__init__(self)
+        self.setCentralWidget(self.map)
+
+class MapWidget(QWidget):
+    def __init__(self):
+        QWidget.__init__(self)
 
         self.canvas = QgsMapCanvas()
         self.canvas.setCanvasColor(Qt.white)
         self.canvas.enableAntiAliasing(True)
 
-        self.setCentralWidget(self.canvas)
+        self._layout = QVBoxLayout(self)
+        self.setLayout(self._layout)
+        self._layout.addWidget(self.canvas)
 
         self.actionZoomIn = QAction("Zoom in", self)
         self.actionZoomOut = QAction("Zoom out", self)
@@ -62,10 +55,10 @@ class MyWnd(QMainWindow):
         #self.canvas.xyCoordinates.connect(self.xyCoordinates)
         self.actionPan.triggered.connect(self.pan)
 
-        self.toolbar = self.addToolBar("Canvas actions")
-        self.toolbar.addAction(self.actionZoomIn)
-        self.toolbar.addAction(self.actionZoomOut)
-        self.toolbar.addAction(self.actionPan)
+        #self.toolbar = self.addToolBar("Canvas actions")
+        #self.toolbar.addAction(self.actionZoomIn)
+        #self.toolbar.addAction(self.actionZoomOut)
+        #self.toolbar.addAction(self.actionPan)
 
         # create the map tools
         self.toolPan = QgsMapToolPan(self.canvas)
@@ -146,20 +139,17 @@ class MyWnd(QMainWindow):
 app = QApplication([])
 
 # create main window
-wnd = MyWnd()
-canvas = wnd.canvas
+wnd = MainWind()
+canvas = wnd.map.canvas
 # Move the app window to upper left
 wnd.size()
 wnd.show()
 
 
 orm  = QgsRasterLayer('crs=EPSG:4326&format&type=xyz&url=https://a.tiles.openrailwaymap.org/standard/%7Bz%7D/%7Bx%7D/%7By%7D.png&zmax=19&zmin=0', 'ORM-standard', 'wms')
+osm  = QgsRasterLayer('crs=EPSG:4326&format&type=xyz&url=http://tile.openstreetmap.org/%7Bz%7D/%7Bx%7D/%7By%7D.png&zmax=19&zmin=0', 'ORM-standard', 'wms')
 mapy_cz  = QgsRasterLayer('http-header:referer=https://mapy.cz/ &referer=https://mapy.cz/ &type=xyz&url=https://mapserver.mapy.cz/base-m/%7Bz%7D-%7Bx%7D-%7By%7D', 'mapycz-standard', 'wms')
 
-vlayer = QgsVectorLayer('/aux/jiri/QGIS-Sampledata/shapefiles/airports.shp', "Airports layer", "ogr")
-if not vlayer.isValid():
-    print("Layer failed to load!")
-
 
 uri = "Point?field=vehicle_type:string(100)&field=route_short_name:string(20)&index=yes"
 mem_layer = QgsVectorLayer(uri,
@@ -175,20 +165,17 @@ mem_layer.setLabeling(labeling)
 mem_layer.setLabelsEnabled(True)
 prov = mem_layer.dataProvider()
 layer_fields = mem_layer.fields()
-
-# add layer to the registry
-QgsProject.instance().addMapLayer(vlayer)
-
-# set extent to the extent of our layer
-canvas.setExtent(vlayer.extent())
+canvas.setExtent(QgsRectangle(
+    crs_transform.transform(QgsPointXY(14.373, 50.034)),
+    crs_transform.transform(QgsPointXY(14.500, 50.103)))
+)
 
 # set the map canvas layer set
-canvas.setLayers([mapy_cz])
+canvas.setLayers([mem_layer, orm, mapy_cz])
 
 
 feature_identifier = QgsMapToolIdentifyFeature(canvas)
-feature_identifier.setLayer(vlayer)
-feature_identifier.featureIdentified.connect(wnd.callback)
+feature_identifier.featureIdentified.connect(wnd.map.callback)
 
 canvas.setDestinationCrs(mapy_cz.crs())
 
@@ -198,6 +185,7 @@ asyncio.set_event_loop(event_loop)
 app_close_event = asyncio.Event()
 app.aboutToQuit.connect(app_close_event.set)
 
+print(mem_layer, mem_layer.crs())
 
 with event_loop:
     event_loop.run_until_complete(app_close_event.wait())