614 lines
23 KiB
Python
614 lines
23 KiB
Python
"""
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sn_plan41/ui/layout.py – Aufbau von Drucklayouts für Plan41.
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"""
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from __future__ import annotations
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import math
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from typing import Any
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from sn_basis.functions.qt_wrapper import QFont
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from sn_basis.functions.qgiscore_wrapper import (
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QgsLayoutItem,
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QgsLayoutItemLabel,
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QgsLayoutItemMap,
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QgsLayoutPoint,
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QgsLayoutSize,
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QgsPrintLayout,
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QgsProject,
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QgsUnitTypes,
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)
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from sn_basis.functions.qgisui_wrapper import open_layout_designer
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MM = QgsUnitTypes.LayoutMillimeters
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class Layout:
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"""Erzeugt ein QGIS-Layout für den Druck."""
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_TEXT_FORMAT_TEMPLATES = {
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"Format_1": {
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"font_family": "New Helvetica roman",
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"font_size": 10,
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"font_style": "normal",
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},
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"Format_2": {
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"font_family": "New Helvetica roman",
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"font_size": 14,
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"font_style": "fett",
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},
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"Format_3": {
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"font_family": "New Helvetica roman",
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"font_size": 10,
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"font_style": "normal",
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},
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}
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_OBJECT_TEMPLATES = {
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"hauptkarte": {
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"id": "Hauptkarte",
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},
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"quellenangabe": {
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"id": "Quellenangabe",
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"size_mm": (180.0, 100.0),
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"format": "Format_1",
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},
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"seitenzahl": {
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"id": "Seitenzahl",
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"size_mm": (60.0, 8.0),
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"format": "Format_1",
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},
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"textfeld": {
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"id": "Textfeld",
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"size_mm": (60.0, 8.0),
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"format": "Format_1",
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"html_mode": True,
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"text": "",
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},
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}
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_QUELLENANGABE_TEXT = (
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"Quelle Geobasisdaten: GeoSN, "
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"<a href=\"https://www.govdata.de/dl-de/by-2-0\">dl-de/by-2-0</a><br>"
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"Quelle Fachdaten: Darstellung auf der Grundlage von Daten und mit Erlaubnis des "
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"Sächsischen Landesamtes für Umwelt, Landwirtschaft und Geologie<br>"
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"Basemap:"
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"© GeoBasis-DE / <a href=\"https://www.bkg.bund.de\">BKG</a> ([%year($now)%]) "
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"<a href=\"https://creativecommons.org/licences/by/4.0/\">CC BY 4.0</a> "
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"mit teilweise angepasster Signatur<br>"
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)
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_SEITENZAHL_TEXT = "Seite [% attribute(@atlas_feature, 'Seitenzahl') %] von [% @atlas_totalfeatures %]"
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def __init__(self, project: Any | None = None) -> None:
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self.project = project or QgsProject.instance()
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self._current_layout: Any | None = None
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def _create_map_item(
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self,
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layout: Any,
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template_name: str,
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x_mm: float,
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y_mm: float,
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width_mm: float,
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height_mm: float,
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) -> Any:
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template = self._OBJECT_TEMPLATES[template_name]
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map_item = QgsLayoutItemMap(layout)
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map_item.setId(template["id"])
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layout.addLayoutItem(map_item)
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map_item.attemptMove(QgsLayoutPoint(x_mm, y_mm, MM))
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map_item.attemptResize(QgsLayoutSize(width_mm, height_mm, MM))
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return map_item
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def add_text_label(
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self,
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text: str,
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x_mm: float,
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y_mm: float,
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template_name: str = "textfeld",
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text_format: str | None = None,
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width_mm: float | None = None,
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height_mm: float | None = None,
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html_mode: bool = False,
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expression_enabled: bool = False,
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) -> Any:
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"""Einfache öffentliche Methode zum Hinzufügen eines Text-Labels.
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Beispiel: add_text_label("Ausgabedatum: 2026-03-23", 100, 200, text_format="Format_1")
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"""
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if self._current_layout is None:
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raise RuntimeError("Kein Layout aktiv. Bitte create_single_page_layout() oder create_atlas_layout() aufrufen.")
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return self._create_label_item(
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self._current_layout,
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template_name,
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text,
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x_mm,
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y_mm,
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text_format=text_format,
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width_mm=width_mm,
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height_mm=height_mm,
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html_mode=html_mode,
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expression_enabled=expression_enabled,
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)
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def _setup_layout_objects(self, kartenfenster_untere_rechte_ecke_mm: tuple, is_atlas: bool = False) -> None:
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"""Zentrale Methode zum Hinzufügen aller Standard-Objekte ins Layout.
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Diese Methode wird sowohl von create_single_page_layout() als auch von create_atlas_layout() aufgerufen.
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Args:
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kartenfenster_untere_rechte_ecke_mm: Tupel (x_mm, y_mm) der unteren rechten Kartenecke
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is_atlas: True für Atlas-Layout, False für Einzelblatt-Layout
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"""
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if self._current_layout is None:
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raise RuntimeError("Kein Layout aktiv.")
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mode_html = getattr(QgsLayoutItemLabel, "ModeHtml", None)
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print(f"[Layout] QgsLayoutItemLabel.ModeHtml={mode_html!r}")
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lower_left = getattr(getattr(QgsLayoutItem, "ReferencePoint", object), "LowerLeft", None)
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print(f"[Layout] QgsLayoutItem.ReferencePoint.LowerLeft={lower_left!r}")
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# Quellenangabe: unterschiedliche Positionen für Einzelblatt vs. Atlas
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if is_atlas:
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quellenangabe_x = kartenfenster_untere_rechte_ecke_mm[0] + 5.0
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quellenangabe_y = kartenfenster_untere_rechte_ecke_mm[1]
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else:
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quellenangabe_x = kartenfenster_untere_rechte_ecke_mm[0] + 10.0
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quellenangabe_y = kartenfenster_untere_rechte_ecke_mm[1] - 120.0
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self._create_label_item(
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self._current_layout,
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"quellenangabe",
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self._QUELLENANGABE_TEXT,
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quellenangabe_x,
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quellenangabe_y,
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html_mode=True,
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)
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print("[Layout] Quellenangabe zum Layout hinzugefügt")
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# Seitenzahl nur bei Atlas-Layout
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if is_atlas:
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seitenzahl_x = kartenfenster_untere_rechte_ecke_mm[0] + 5.0
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seitenzahl_y = kartenfenster_untere_rechte_ecke_mm[1] - 2.0
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self._create_label_item(
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self._current_layout,
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"seitenzahl",
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self._SEITENZAHL_TEXT,
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seitenzahl_x,
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seitenzahl_y,
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expression_enabled=True,
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)
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print("[Layout] Seitenzahl zum Layout hinzugefügt")
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def _create_label_item(
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self,
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layout: Any,
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template_name: str,
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text: str,
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x_mm: float,
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y_mm: float,
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*,
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text_format: str | None = None,
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font_name: str | None = None,
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font_size: int | None = None,
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font_style: str | None = None,
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width_mm: float | None = None,
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height_mm: float | None = None,
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html_mode: bool = False,
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expression_enabled: bool = False,
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) -> Any:
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template = self._OBJECT_TEMPLATES[template_name]
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label = QgsLayoutItemLabel(layout)
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label.setId(template["id"])
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label.setText(text)
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if html_mode:
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set_mode = getattr(label, "setMode", None)
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mode_html = getattr(QgsLayoutItemLabel, "ModeHtml", None)
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if callable(set_mode) and mode_html is not None:
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set_mode(mode_html)
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if expression_enabled:
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set_expr_enabled = getattr(label, "setExpressionEnabled", None)
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if callable(set_expr_enabled):
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try:
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set_expr_enabled(True)
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except Exception:
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pass
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format_name = text_format or template.get("format", "Format_1")
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format_template = self._TEXT_FORMAT_TEMPLATES.get(format_name, self._TEXT_FORMAT_TEMPLATES["Format_1"])
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resolved_font_name = font_name or format_template["font_family"]
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resolved_font_size = font_size or format_template["font_size"]
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resolved_font_style = font_style or format_template["font_style"]
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font = QFont(resolved_font_name, resolved_font_size)
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if hasattr(font, "setBold"):
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font.setBold(resolved_font_style == "fett")
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label.setFont(font)
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set_reference_point = getattr(label, "setReferencePoint", None)
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lower_left = getattr(getattr(QgsLayoutItem, "ReferencePoint", object), "LowerLeft", None)
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if callable(set_reference_point) and lower_left is not None:
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set_reference_point(lower_left)
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template_width, template_height = template.get("size_mm", (0.0, 0.0))
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label.attemptMove(QgsLayoutPoint(x_mm, y_mm, MM))
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label.attemptResize(
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QgsLayoutSize(
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width_mm if width_mm is not None else template_width,
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height_mm if height_mm is not None else template_height,
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MM,
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)
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)
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layout.addLayoutItem(label)
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return label
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def create_single_page_layout(
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self,
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name: str,
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page_width_mm: float,
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page_height_mm: float,
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map_width_mm: float,
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map_height_mm: float,
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extent: Any,
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plotmassstab: float,
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thema: str = "",
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) -> Any:
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"""Erzeugt ein einseitiges Layout und öffnet es im Designer."""
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print(f"[Layout] create_single_page_layout: name='{name}', "
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f"page=({page_width_mm}x{page_height_mm}), map=({map_width_mm:.1f}x{map_height_mm:.1f}), "
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f"massstab={plotmassstab}, thema='{thema}'")
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layout_manager = self.project.layoutManager()
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print(f"[Layout] layoutManager: {layout_manager!r}")
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existing_layout = layout_manager.layoutByName(name)
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if existing_layout is not None:
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raise ValueError(f"Eine Vorlage mit der Bezeichnung '{name}' existiert bereits.")
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layout = QgsPrintLayout(self.project)
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layout.initializeDefaults()
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layout.setName(name)
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self._current_layout = layout
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print(f"[Layout] QgsPrintLayout erstellt: {layout!r}")
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page = layout.pageCollection().page(0)
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page.setPageSize(QgsLayoutSize(page_width_mm, page_height_mm, MM))
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print(f"[Layout] Seitengröße gesetzt: {page_width_mm}x{page_height_mm} mm")
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map_left_mm = 10.0
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map_top_mm = 10.0
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map_right_mm = map_left_mm + map_width_mm
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map_bottom_mm = map_top_mm + map_height_mm
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kartenfenster_untere_rechte_ecke_mm = (map_right_mm, map_bottom_mm)
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print(
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f"[Layout] Kartenbild-Kanten: rechts={map_right_mm:.1f} mm, unten={map_bottom_mm:.1f} mm"
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)
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hauptkarte = self._create_map_item(
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layout,
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"hauptkarte",
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map_left_mm,
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map_top_mm,
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map_width_mm,
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map_height_mm,
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)
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print(f"[Layout] QgsLayoutItemMap erstellt")
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print("[Layout] Hauptkarte zum Layout hinzugefügt")
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print(f"[Layout] Position und Größe gesetzt: pos=({map_left_mm}, {map_top_mm}), size=({map_width_mm:.1f}x{map_height_mm:.1f})")
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# Extent und Maßstab setzen
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x_min = getattr(extent, "xMinimum", lambda: float("nan"))()
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y_min = getattr(extent, "yMinimum", lambda: float("nan"))()
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x_max = getattr(extent, "xMaximum", lambda: float("nan"))()
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y_max = getattr(extent, "yMaximum", lambda: float("nan"))()
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print(f"[Layout] Extent input: xmin={x_min}, ymin={y_min}, xmax={x_max}, ymax={y_max}")
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if extent is not None and hasattr(extent, "isNull") and callable(extent.isNull) and not extent.isNull():
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try:
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hauptkarte.setExtent(extent)
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print(f"[Layout] setExtent() erfolgreich")
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except Exception as exc:
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print(f"[Layout] WARN: setExtent() fehlgeschlagen: {exc}")
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else:
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print(f"[Layout] WARN: Extent nicht gültig/callable, setExtent übersprungen")
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# Maßstab setzen (NACH Extent)
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if isinstance(plotmassstab, (int, float)) and math.isfinite(plotmassstab) and plotmassstab > 0:
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try:
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hauptkarte.setScale(plotmassstab)
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print(f"[Layout] setScale({plotmassstab}) erfolgreich")
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except Exception as exc:
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print(f"[Layout] WARN: setScale({plotmassstab}) fehlgeschlagen: {exc}")
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else:
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print(f"[Layout] WARN: ungültiger plotmassstab={plotmassstab!r}, setScale übersprungen")
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# Rahmen aktivieren
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set_frame_enabled = getattr(hauptkarte, "setFrameEnabled", None)
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if callable(set_frame_enabled):
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try:
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set_frame_enabled(True)
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print(f"[Layout] Rahmen aktiviert")
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except Exception as exc:
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print(f"[Layout] WARN: setFrameEnabled fehlgeschlagen: {exc}")
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set_frame_stroke_width = getattr(hauptkarte, "setFrameStrokeWidth", None)
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if callable(set_frame_stroke_width):
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try:
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set_frame_stroke_width(0.5)
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print(f"[Layout] Rahmenstrichbreite auf 0.5 mm gesetzt")
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except Exception as exc:
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print(f"[Layout] WARN: setFrameStrokeWidth(0.5) fehlgeschlagen: {exc}")
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# Kartenthema setzen
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if thema and thema != "aktuell":
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follow_theme = getattr(hauptkarte, "setFollowVisibilityPreset", None)
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set_theme_name = getattr(hauptkarte, "setFollowVisibilityPresetName", None)
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if callable(follow_theme):
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try:
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follow_theme(True)
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print(f"[Layout] setFollowVisibilityPreset(True)")
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except Exception as exc:
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print(f"[Layout] WARN: setFollowVisibilityPreset fehlgeschlagen: {exc}")
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if callable(set_theme_name):
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try:
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set_theme_name(thema)
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print(f"[Layout] Kartenthema auf '{thema}' gesetzt")
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except Exception as exc:
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print(f"[Layout] WARN: setFollowVisibilityPresetName('{thema}') fehlgeschlagen: {exc}")
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else:
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print(f"[Layout] Kartenthema nicht gesetzt (thema='{thema}')")
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# Erst nach allen Properties: LayerSet einfrieren für Export
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set_keep_layer_set = getattr(hauptkarte, "setKeepLayerSet", None)
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if callable(set_keep_layer_set):
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try:
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set_keep_layer_set(True)
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print("[Layout] setKeepLayerSet(True) – Layerset für Export erhalten")
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except Exception as exc:
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print(f"[Layout] WARN: setKeepLayerSet fehlgeschlagen: {exc}")
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# Refresh-Strategie (optional, nur wenn vorhanden)
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set_refresh_strategy = getattr(hauptkarte, "setRefreshStrategy", None)
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if callable(set_refresh_strategy):
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refresh_cache = getattr(hauptkarte, "RefreshLaterOnly", None) or getattr(hauptkarte, "RefreshWhenRequested", None) or 0
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if refresh_cache is not None:
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try:
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set_refresh_strategy(refresh_cache)
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print(f"[Layout] setRefreshStrategy({refresh_cache}) gesetzt")
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except Exception as exc:
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print(f"[Layout] WARN: setRefreshStrategy fehlgeschlagen: {exc}")
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print(f"[Layout] Hauptkarte vollständig konfiguriert")
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self._setup_layout_objects(kartenfenster_untere_rechte_ecke_mm, is_atlas=False)
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#Kartenschild-Box
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#Kartenschild-Linien
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#Kartenschild-Text
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#Herausgeber
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#Bezeichnung_Flurbereinigung
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#Name Flurbereinigung
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#Stadt_Gemeinde
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#Landkreis
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#Kartenname
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#Ergänzung(Seitenzahl)
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#gefertigt
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#geprüft
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#Maßstab
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#Ausgabedatum
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#Aktenzeichen
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layout_manager.addLayout(layout)
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print("[Layout] Layout zum LayoutManager hinzugefügt")
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self._current_layout = None
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open_layout_designer(layout)
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print("[Layout] Layout Designer geöffnet")
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return layout
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def create_atlas_layout(
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self,
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name: str,
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page_width_mm: float,
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page_height_mm: float,
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map_width_mm: float,
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map_height_mm: float,
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extent: Any,
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plotmassstab: float,
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atlas_layer: Any,
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thema: str = "",
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) -> Any:
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"""Erzeugt ein Atlas-Layout mit Coverage-Layer ``Atlasobjekte``."""
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layout_manager = self.project.layoutManager()
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existing_layout = layout_manager.layoutByName(name)
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if existing_layout is not None:
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raise ValueError(f"Eine Vorlage mit der Bezeichnung '{name}' existiert bereits.")
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layout = QgsPrintLayout(self.project)
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layout.initializeDefaults()
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layout.setName(name)
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self._current_layout = layout
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page = layout.pageCollection().page(0)
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page.setPageSize(QgsLayoutSize(page_width_mm, page_height_mm, MM))
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# Verifiziere, dass QGIS die Größe akzeptiert hat
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page_size = page.pageSize() if hasattr(page, 'pageSize') else None
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if page_size is not None and hasattr(page_size, 'width'):
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actual_w = float(page_size.width())
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actual_h = float(page_size.height())
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print(f"[Layout] Atlas Page gesetzt: x=0, y=0, width={page_width_mm:.1f}mm→{actual_w:.1f}mm, height={page_height_mm:.1f}mm→{actual_h:.1f}mm")
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else:
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print(f"[Layout] Atlas Page: x=0, y=0, width={page_width_mm:.1f}mm, height={page_height_mm:.1f}mm")
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|
||
map_left_mm = 10.0
|
||
map_top_mm = 10.0
|
||
map_right_mm = map_left_mm + map_width_mm
|
||
map_bottom_mm = map_top_mm + map_height_mm
|
||
kartenfenster_untere_rechte_ecke_mm = (map_right_mm, map_bottom_mm)
|
||
|
||
hauptkarte = self._create_map_item(
|
||
layout,
|
||
"hauptkarte",
|
||
map_left_mm,
|
||
map_top_mm,
|
||
map_width_mm,
|
||
map_height_mm,
|
||
)
|
||
|
||
# Verifiziere mit Units-bewussten Methoden (rect() kann andere Units verwenden).
|
||
actual_w = None
|
||
actual_h = None
|
||
actual_x = None
|
||
actual_y = None
|
||
|
||
# Versuche zuerst, die Größe mit Unit-Methoden zu lesen
|
||
try:
|
||
if hasattr(hauptkarte, 'sizeWithUnits'):
|
||
size_item = hauptkarte.sizeWithUnits()
|
||
if hasattr(size_item, 'width') and hasattr(size_item, 'height'):
|
||
actual_w = float(size_item.width())
|
||
actual_h = float(size_item.height())
|
||
except Exception:
|
||
pass
|
||
|
||
try:
|
||
if hasattr(hauptkarte, 'positionWithUnits'):
|
||
pos_item = hauptkarte.positionWithUnits()
|
||
if hasattr(pos_item, 'x') and hasattr(pos_item, 'y'):
|
||
actual_x = float(pos_item.x())
|
||
actual_y = float(pos_item.y())
|
||
except Exception:
|
||
pass
|
||
|
||
# Fallback: nutze rect() und teile durch UnitFaktor, falls nötig
|
||
if actual_w is None or actual_h is None:
|
||
try:
|
||
actual_rect = hauptkarte.rect()
|
||
if actual_rect is not None:
|
||
actual_w = float(actual_rect.width())
|
||
actual_h = float(actual_rect.height())
|
||
actual_x = float(actual_rect.x())
|
||
actual_y = float(actual_rect.y())
|
||
except Exception:
|
||
pass
|
||
|
||
if actual_w is not None and actual_h is not None:
|
||
print(f"[Layout] Atlas Hauptkarte gesetzt: x={map_left_mm:.1f}mm→{actual_x:.1f}mm, y={map_top_mm:.1f}mm→{actual_y:.1f}mm, width={map_width_mm:.1f}mm→{actual_w:.1f}mm, height={map_height_mm:.1f}mm→{actual_h:.1f}mm")
|
||
else:
|
||
print(f"[Layout] Atlas Hauptkarte: x={map_left_mm:.1f}mm, y={map_top_mm:.1f}mm, width={map_width_mm:.1f}mm, height={map_height_mm:.1f}mm")
|
||
|
||
if extent is not None and hasattr(extent, "isNull") and callable(extent.isNull) and not extent.isNull():
|
||
try:
|
||
hauptkarte.setExtent(extent)
|
||
except Exception:
|
||
pass
|
||
|
||
if isinstance(plotmassstab, (int, float)) and math.isfinite(plotmassstab) and plotmassstab > 0:
|
||
try:
|
||
hauptkarte.setScale(plotmassstab)
|
||
except Exception:
|
||
pass
|
||
|
||
set_frame_enabled = getattr(hauptkarte, "setFrameEnabled", None)
|
||
if callable(set_frame_enabled):
|
||
try:
|
||
set_frame_enabled(True)
|
||
except Exception:
|
||
pass
|
||
|
||
set_frame_stroke_width = getattr(hauptkarte, "setFrameStrokeWidth", None)
|
||
if callable(set_frame_stroke_width):
|
||
try:
|
||
set_frame_stroke_width(0.5)
|
||
except Exception:
|
||
pass
|
||
|
||
if thema and thema != "aktuell":
|
||
follow_theme = getattr(hauptkarte, "setFollowVisibilityPreset", None)
|
||
set_theme_name = getattr(hauptkarte, "setFollowVisibilityPresetName", None)
|
||
if callable(follow_theme):
|
||
try:
|
||
follow_theme(True)
|
||
except Exception:
|
||
pass
|
||
if callable(set_theme_name):
|
||
try:
|
||
set_theme_name(thema)
|
||
except Exception:
|
||
pass
|
||
|
||
set_atlas_driven = getattr(hauptkarte, "setAtlasDriven", None)
|
||
if callable(set_atlas_driven):
|
||
try:
|
||
set_atlas_driven(True)
|
||
except Exception:
|
||
pass
|
||
|
||
# Fester Atlas-Maßstab: plotmassstab bleibt unverändert.
|
||
set_scaling_mode = getattr(hauptkarte, "setAtlasScalingMode", None)
|
||
if callable(set_scaling_mode):
|
||
fixed_mode = getattr(QgsLayoutItemMap, "Fixed", None)
|
||
if fixed_mode is not None:
|
||
try:
|
||
set_scaling_mode(fixed_mode)
|
||
except Exception:
|
||
pass
|
||
|
||
set_atlas_margin = getattr(hauptkarte, "setAtlasMargin", None)
|
||
if callable(set_atlas_margin):
|
||
try:
|
||
set_atlas_margin(0.0)
|
||
except Exception:
|
||
pass
|
||
|
||
set_keep_layer_set = getattr(hauptkarte, "setKeepLayerSet", None)
|
||
if callable(set_keep_layer_set):
|
||
try:
|
||
set_keep_layer_set(True)
|
||
except Exception:
|
||
pass
|
||
|
||
# Sicherheit: Größe nochmal nach Atlas-Konfiguration setzen, um sicherzustellen, dass sie nicht von der Atlas-Einstellung überschrieben wurde.
|
||
hauptkarte.attemptResize(QgsLayoutSize(map_width_mm, map_height_mm, MM))
|
||
print(f"[Layout] Atlas Hauptkarte Größe nach Atlas-Konfiguration erneut gesetzt: {map_width_mm:.1f}mm × {map_height_mm:.1f}mm")
|
||
|
||
self._setup_layout_objects(kartenfenster_untere_rechte_ecke_mm, is_atlas=True)
|
||
|
||
atlas = layout.atlas()
|
||
if atlas is not None:
|
||
set_enabled = getattr(atlas, "setEnabled", None)
|
||
set_coverage = getattr(atlas, "setCoverageLayer", None)
|
||
set_hide_coverage = getattr(atlas, "setHideCoverage", None)
|
||
set_filter_features = getattr(atlas, "setFilterFeatures", None)
|
||
set_page_name = getattr(atlas, "setPageNameExpression", None)
|
||
|
||
if callable(set_enabled):
|
||
set_enabled(True)
|
||
if callable(set_coverage):
|
||
set_coverage(atlas_layer)
|
||
if callable(set_hide_coverage):
|
||
set_hide_coverage(True)
|
||
if callable(set_filter_features):
|
||
set_filter_features(False)
|
||
if callable(set_page_name):
|
||
set_page_name("attribute(@atlas_feature, 'Seitenzahl')")
|
||
|
||
layout_manager.addLayout(layout)
|
||
print("[Layout] Layout zum LayoutManager hinzugefügt")
|
||
self._current_layout = None
|
||
open_layout_designer(layout)
|
||
print("[Layout] Layout Designer geöffnet")
|
||
return layout
|