Erste Version Verfahrensgebiet aus ALKIS laden

logic/alkis_verfahrensgebiet.py

@@ -0,0 +1,85 @@
+import os
+from qgis.core import (
+    QgsVectorLayer, QgsProject, QgsFeature, QgsField,
+    QgsFeatureRequest, QgsGeometry
+)
+from qgis.PyQt.QtWidgets import QMessageBox
+from qgis.PyQt.QtCore import QVariant
+from sn_basis import get_variable
+
+alkis_NAS_url = "https://geodienste.sachsen.de/aaa/public_alkis/nas/wfs"
+typename = "adv:AX_BauRaumOderBodenordnungsrecht"
+
+
+def alkis_verfahrensgebiet(tab_widget):
+    verfahrensnummer = get_variable("verfahrensnummer")
+    if not verfahrensnummer:
+        QMessageBox.critical(tab_widget, "Fehler",
+                             "Die Projektvariable 'sn_verfahrensnummer' ist nicht gesetzt.")
+        tab_widget.setze_haken(tab_widget.haken1, False)
+        return None, False
+
+    project = QgsProject.instance()
+    existing_layers = project.mapLayersByName("Verfahrensgebiet")
+    if existing_layers:
+        reply = QMessageBox.question(
+            tab_widget,
+            "Layer bereits vorhanden",
+            "Der Layer 'Verfahrensgebiet' existiert bereits.\n"
+            "Möchten Sie ihn löschen und neu laden?",
+            QMessageBox.StandardButton.Yes | QMessageBox.StandardButton.No,
+            QMessageBox.StandardButton.No
+        )
+        if reply == QMessageBox.StandardButton.Yes:
+            for lyr in existing_layers:
+                project.removeMapLayer(lyr.id())
+        else:
+            # Vorhandenen Layer zurückgeben, kein Neu-Laden
+            return existing_layers[0], False
+
+    # WFS mit Filter laden
+    wfs_uri_find = (
+        f"url='{alkis_NAS_url}' typename='{typename}' srsname='EPSG:25833' "
+        f"sql=SELECT * FROM AX_BauRaumOderBodenordnungsrecht "
+        f"WHERE bezeichnung LIKE '{verfahrensnummer}%'"
+    )
+    temp_layer = QgsVectorLayer(wfs_uri_find, "TempVerfahrensgebiet", "WFS")
+
+    if not temp_layer.isValid():
+        QMessageBox.critical(tab_widget, "Fehler", "Layer konnte nicht geladen werden.")
+        return None, False
+
+    features = list(temp_layer.getFeatures())
+    if not features:
+        QMessageBox.critical(tab_widget, "Fehler",
+                             f"Verfahrenskennzeichen {verfahrensnummer} nicht im WFS gefunden.")
+        return None, False
+
+    # Geometrie bestimmen
+    if len(features) == 1:
+        union_geom = features[0].geometry()
+    else:
+        geoms = [f.geometry() for f in features]
+        union_geom = QgsGeometry.unaryUnion(geoms)
+
+    if union_geom is None or union_geom.isEmpty():
+        QMessageBox.critical(tab_widget, "Fehler", "Keine Geometrien zum Verschmelzen gefunden.")
+        return None, False
+
+    # Memory-Layer mit festem Namen "Verfahrensgebiet"
+    crs = temp_layer.crs().authid()
+    memory_layer = QgsVectorLayer(f"Polygon?crs={crs}", "Verfahrensgebiet", "memory")
+    pr = memory_layer.dataProvider()
+
+    # Feld "VKZ" hinzufügen
+    pr.addAttributes([QgsField("VKZ", QVariant.String)])
+    memory_layer.updateFields()
+
+    # Feature mit Geometrie erstellen
+    feat_union = QgsFeature()
+    feat_union.setGeometry(union_geom)
+    feat_union.setAttributes([verfahrensnummer])
+    pr.addFeatures([feat_union])
+    memory_layer.updateExtents()
+
+    return memory_layer, True

ui/dockwidget.py

@@ -5,4 +5,4 @@ from sn_basis.ui.base_dockwidget import BaseDockWidget
 
 
 class DockWidget(BaseDockWidget):
-    tabs = [TabA, TabB, SettingsTab]
+    tabs = [TabA, SettingsTab]

ui/tabs/Verfahrensgebiet.qml

@@ -0,0 +1,140 @@
+<!DOCTYPE qgis PUBLIC 'http://mrcc.com/qgis.dtd' 'SYSTEM'>
+<qgis version="3.40.7-Bratislava" styleCategories="Symbology">
+  <renderer-v2 referencescale="-1" forceraster="0" enableorderby="0" type="singleSymbol" symbollevels="0">
+    <symbols>
+      <symbol is_animated="0" frame_rate="10" clip_to_extent="1" type="fill" alpha="1" force_rhr="0" name="0">
+        <data_defined_properties>
+          <Option type="Map">
+            <Option type="QString" value="" name="name"/>
+            <Option name="properties"/>
+            <Option type="QString" value="collection" name="type"/>
+          </Option>
+        </data_defined_properties>
+        <layer locked="0" id="{feca00b2-500a-4c9a-b285-67ba2d99d8f6}" enabled="1" class="SimpleLine" pass="0">
+          <Option type="Map">
+            <Option type="QString" value="0" name="align_dash_pattern"/>
+            <Option type="QString" value="square" name="capstyle"/>
+            <Option type="QString" value="5;2" name="customdash"/>
+            <Option type="QString" value="3x:0,0,0,0,0,0" name="customdash_map_unit_scale"/>
+            <Option type="QString" value="MM" name="customdash_unit"/>
+            <Option type="QString" value="0" name="dash_pattern_offset"/>
+            <Option type="QString" value="3x:0,0,0,0,0,0" name="dash_pattern_offset_map_unit_scale"/>
+            <Option type="QString" value="MM" name="dash_pattern_offset_unit"/>
+            <Option type="QString" value="0" name="draw_inside_polygon"/>
+            <Option type="QString" value="round" name="joinstyle"/>
+            <Option type="QString" value="215,168,255,255,rgb:0.84313725490196079,0.6588235294117647,1,1" name="line_color"/>
+            <Option type="QString" value="solid" name="line_style"/>
+            <Option type="QString" value="1.5" name="line_width"/>
+            <Option type="QString" value="MM" name="line_width_unit"/>
+            <Option type="QString" value="-0.75" name="offset"/>
+            <Option type="QString" value="3x:0,0,0,0,0,0" name="offset_map_unit_scale"/>
+            <Option type="QString" value="MM" name="offset_unit"/>
+            <Option type="QString" value="0" name="ring_filter"/>
+            <Option type="QString" value="0" name="trim_distance_end"/>
+            <Option type="QString" value="3x:0,0,0,0,0,0" name="trim_distance_end_map_unit_scale"/>
+            <Option type="QString" value="MM" name="trim_distance_end_unit"/>
+            <Option type="QString" value="0" name="trim_distance_start"/>
+            <Option type="QString" value="3x:0,0,0,0,0,0" name="trim_distance_start_map_unit_scale"/>
+            <Option type="QString" value="MM" name="trim_distance_start_unit"/>
+            <Option type="QString" value="0" name="tweak_dash_pattern_on_corners"/>
+            <Option type="QString" value="0" name="use_custom_dash"/>
+            <Option type="QString" value="3x:0,0,0,0,0,0" name="width_map_unit_scale"/>
+          </Option>
+          <data_defined_properties>
+            <Option type="Map">
+              <Option type="QString" value="" name="name"/>
+              <Option name="properties"/>
+              <Option type="QString" value="collection" name="type"/>
+            </Option>
+          </data_defined_properties>
+        </layer>
+        <layer locked="0" id="{fdc4d6fd-0995-41df-bbfb-19970b4fc2cc}" enabled="1" class="SimpleLine" pass="0">
+          <Option type="Map">
+            <Option type="QString" value="0" name="align_dash_pattern"/>
+            <Option type="QString" value="square" name="capstyle"/>
+            <Option type="QString" value="5;2" name="customdash"/>
+            <Option type="QString" value="3x:0,0,0,0,0,0" name="customdash_map_unit_scale"/>
+            <Option type="QString" value="MM" name="customdash_unit"/>
+            <Option type="QString" value="0" name="dash_pattern_offset"/>
+            <Option type="QString" value="3x:0,0,0,0,0,0" name="dash_pattern_offset_map_unit_scale"/>
+            <Option type="QString" value="MM" name="dash_pattern_offset_unit"/>
+            <Option type="QString" value="0" name="draw_inside_polygon"/>
+            <Option type="QString" value="round" name="joinstyle"/>
+            <Option type="QString" value="204,174,137,255,rgb:0.80000000000000004,0.68235294117647061,0.53725490196078429,1" name="line_color"/>
+            <Option type="QString" value="solid" name="line_style"/>
+            <Option type="QString" value="0.5" name="line_width"/>
+            <Option type="QString" value="MM" name="line_width_unit"/>
+            <Option type="QString" value="0" name="offset"/>
+            <Option type="QString" value="3x:0,0,0,0,0,0" name="offset_map_unit_scale"/>
+            <Option type="QString" value="MM" name="offset_unit"/>
+            <Option type="QString" value="0" name="ring_filter"/>
+            <Option type="QString" value="0" name="trim_distance_end"/>
+            <Option type="QString" value="3x:0,0,0,0,0,0" name="trim_distance_end_map_unit_scale"/>
+            <Option type="QString" value="MM" name="trim_distance_end_unit"/>
+            <Option type="QString" value="0" name="trim_distance_start"/>
+            <Option type="QString" value="3x:0,0,0,0,0,0" name="trim_distance_start_map_unit_scale"/>
+            <Option type="QString" value="MM" name="trim_distance_start_unit"/>
+            <Option type="QString" value="0" name="tweak_dash_pattern_on_corners"/>
+            <Option type="QString" value="0" name="use_custom_dash"/>
+            <Option type="QString" value="3x:0,0,0,0,0,0" name="width_map_unit_scale"/>
+          </Option>
+          <data_defined_properties>
+            <Option type="Map">
+              <Option type="QString" value="" name="name"/>
+              <Option name="properties"/>
+              <Option type="QString" value="collection" name="type"/>
+            </Option>
+          </data_defined_properties>
+        </layer>
+      </symbol>
+    </symbols>
+    <rotation/>
+    <sizescale/>
+    <data-defined-properties>
+      <Option type="Map">
+        <Option type="QString" value="" name="name"/>
+        <Option name="properties"/>
+        <Option type="QString" value="collection" name="type"/>
+      </Option>
+    </data-defined-properties>
+  </renderer-v2>
+  <selection mode="Default">
+    <selectionColor invalid="1"/>
+    <selectionSymbol>
+      <symbol is_animated="0" frame_rate="10" clip_to_extent="1" type="fill" alpha="1" force_rhr="0" name="">
+        <data_defined_properties>
+          <Option type="Map">
+            <Option type="QString" value="" name="name"/>
+            <Option name="properties"/>
+            <Option type="QString" value="collection" name="type"/>
+          </Option>
+        </data_defined_properties>
+        <layer locked="0" id="{f18003f5-220a-487f-8a6d-b24facc4c1a5}" enabled="1" class="SimpleFill" pass="0">
+          <Option type="Map">
+            <Option type="QString" value="3x:0,0,0,0,0,0" name="border_width_map_unit_scale"/>
+            <Option type="QString" value="0,0,255,255,rgb:0,0,1,1" name="color"/>
+            <Option type="QString" value="bevel" name="joinstyle"/>
+            <Option type="QString" value="0,0" name="offset"/>
+            <Option type="QString" value="3x:0,0,0,0,0,0" name="offset_map_unit_scale"/>
+            <Option type="QString" value="MM" name="offset_unit"/>
+            <Option type="QString" value="35,35,35,255,rgb:0.13725490196078433,0.13725490196078433,0.13725490196078433,1" name="outline_color"/>
+            <Option type="QString" value="solid" name="outline_style"/>
+            <Option type="QString" value="0.26" name="outline_width"/>
+            <Option type="QString" value="MM" name="outline_width_unit"/>
+            <Option type="QString" value="solid" name="style"/>
+          </Option>
+          <data_defined_properties>
+            <Option type="Map">
+              <Option type="QString" value="" name="name"/>
+              <Option name="properties"/>
+              <Option type="QString" value="collection" name="type"/>
+            </Option>
+          </data_defined_properties>
+        </layer>
+      </symbol>
+    </selectionSymbol>
+  </selection>
+  <blendMode>0</blendMode>
+  <featureBlendMode>0</featureBlendMode>
+  <layerGeometryType>2</layerGeometryType>
+</qgis>

ui/tabs/tab_a.py

@@ -1,12 +1,98 @@
-from qgis.PyQt.QtWidgets import QWidget, QVBoxLayout, QLabel, QLineEdit
+from qgis.PyQt.QtWidgets import QWidget, QVBoxLayout, QHBoxLayout, QLabel, QPushButton, QMessageBox
+from qgis.PyQt.QtGui import QIcon, QPixmap
+from qgis.PyQt.QtCore import Qt, QTimer
+from qgis.core import Qgis, QgsProject, QgsMessageLog
+from qgis.utils import iface
+import os
+
+from sn_verfahrensgebiet.logic.alkis_verfahrensgebiet import alkis_verfahrensgebiet
+from sn_basis.logic.utils import zoom_to_layer
 
 class TabA(QWidget):
-    tab_title = "Tab A"
+    tab_title = "Bearbeitung"
-    
+
     def __init__(self, parent=None):
         super().__init__(parent)
+
         layout = QVBoxLayout()
-        layout.addWidget(QLabel("Plugin1 – Tab A"))
+        layout.setAlignment(Qt.AlignmentFlag.AlignTop)
-        layout.addWidget(QLineEdit("Feld A1"))
+
-        layout.addWidget(QLineEdit("Feld A2"))
+        # Abschnitt 1: Verfahrensgebiet
+        row_verf_header = QHBoxLayout()
+        lbl_verf = QLabel("<b>Verfahrensgebiet</b>")
+        self.haken1 = self._haken_label()
+        row_verf_header.addWidget(lbl_verf)
+        row_verf_header.addWidget(self.haken1)
+        row_verf_header.addStretch()
+        layout.addLayout(row_verf_header)
+
+        row_verf_buttons = QHBoxLayout()
+        self.btn_verf_alkis = QPushButton("Aus ALKIS laden")
+        self.btn_verf_shape = QPushButton("Aus Shape laden")
+        row_verf_buttons.addWidget(self.btn_verf_alkis)
+        row_verf_buttons.addWidget(self.btn_verf_shape)
+        layout.addLayout(row_verf_buttons)
+
+        # Abschnitt 2: Flurstücke
+        row_flurst_header = QHBoxLayout()
+        lbl_flurst = QLabel("<b>Flurstücke</b>")
+        self.haken2 = self._haken_label()
+        row_flurst_header.addWidget(lbl_flurst)
+        row_flurst_header.addWidget(self.haken2)
+        row_flurst_header.addStretch()
+        layout.addLayout(row_flurst_header)
+
+        row_flurst_buttons = QHBoxLayout()
+        self.btn_flurst_alkis = QPushButton("Aus ALKIS laden")
+        self.btn_flurst_shape = QPushButton("Aus Shape laden")
+        row_flurst_buttons.addWidget(self.btn_flurst_alkis)
+        row_flurst_buttons.addWidget(self.btn_flurst_shape)
+        layout.addLayout(row_flurst_buttons)
+
+        layout.addStretch()
         self.setLayout(layout)
+
+        # Beispiel: Haken anzeigen nach Klick
+        # self.button1.clicked.connect(lambda: alkis_verfahrensgebiet(self))
+        self.btn_verf_alkis.clicked.connect(lambda: self.handle_button1())
+
+        #self.button2.clicked.connect(lambda: self.setze_haken(self.haken2, True))
+
+    def handle_button1(self):
+        layer, neu_geladen = alkis_verfahrensgebiet(self)
+
+        if not layer or not layer.isValid():
+            return
+
+        if neu_geladen:
+            QgsProject.instance().addMapLayer(layer)
+            iface.mapCanvas().setExtent(layer.extent())
+            iface.mapCanvas().refresh()
+            # Beispiel: Haken setzen oder Meldung ausgeben
+            self.setze_haken(self.haken1, True)
+            # QMessageBox.information(self, "Info", "Layer 'Verfahrensgebiet' wurde neu geladen.")
+        else:
+            # Kein Zoom, kein Neu-Laden
+            QgsMessageLog.logMessage("Vorhandener Layer behalten.", "sn_verfahrensgebiet", level=Qgis.Info)
+
+
+    def _haken_label(self):
+        label = QLabel()
+        label.setFixedSize(20, 20)
+#        label.setAlignment(Qt.AlignCenter)
+        label.setAlignment(Qt.AlignmentFlag.AlignCenter)
+        label.setScaledContents(False)
+        label.setText("")
+        return label
+
+    def setze_haken(self, label: QLabel, aktiv: bool):
+        """Zeigt oder entfernt den grünen Haken."""
+        if aktiv:
+            # grünes Unicode-Häkchen
+            label.setPixmap(QPixmap())
+            label.setText("✓")
+            label.setStyleSheet("color: #2ea043; font-weight: bold;")
+        else:
+            label.setPixmap(QPixmap())
+            label.setText("")
+            label.setStyleSheet("")