forked from AG_QGIS/Plugin_SN_Basis
111 lines
3.1 KiB
Python
111 lines
3.1 KiB
Python
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"""
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qt_compat.py – Einheitliche Qt-Kompatibilitätsschicht für QGIS-Plugins.
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Ziele:
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- PyQt6 bevorzugt
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- Fallback auf PyQt5
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- Mock-Modus, wenn kein Qt verfügbar ist (z. B. in Unittests)
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- OR-fähige Fake-Enums im Mock-Modus
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"""
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QT_VERSION = 0 # 0 = Mock, 5 = PyQt5, 6 = PyQt6
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# ---------------------------------------------------------
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# Versuch: PyQt6 importieren
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# ---------------------------------------------------------
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try:
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from PyQt6.QtWidgets import QMessageBox, QFileDialog
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from PyQt6.QtCore import Qt, QEventLoop, QUrl
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from PyQt6.QtNetwork import QNetworkRequest, QNetworkReply
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YES = QMessageBox.StandardButton.Yes
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NO = QMessageBox.StandardButton.No
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CANCEL = QMessageBox.StandardButton.Cancel
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ICON_QUESTION = QMessageBox.Icon.Question
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QT_VERSION = 6
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def exec_dialog(dialog):
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"""Einheitliche Ausführung eines Dialogs."""
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return dialog.exec()
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# ---------------------------------------------------------
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# Versuch: PyQt5 importieren
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# ---------------------------------------------------------
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except Exception:
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try:
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from PyQt5.QtWidgets import QMessageBox, QFileDialog
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from PyQt5.QtCore import Qt, QEventLoop, QUrl
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from PyQt5.QtNetwork import QNetworkRequest, QNetworkReply
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YES = QMessageBox.Yes
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NO = QMessageBox.No
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CANCEL = QMessageBox.Cancel
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ICON_QUESTION = QMessageBox.Question
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QT_VERSION = 5
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def exec_dialog(dialog):
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return dialog.exec_()
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# ---------------------------------------------------------
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# Mock-Modus (kein Qt verfügbar)
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# ---------------------------------------------------------
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except Exception:
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QT_VERSION = 0
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class FakeEnum(int):
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"""Ein OR-fähiger Enum-Ersatz für den Mock-Modus."""
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def __or__(self, other):
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return FakeEnum(int(self) | int(other))
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class QMessageBox:
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Yes = FakeEnum(1)
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No = FakeEnum(2)
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Cancel = FakeEnum(4)
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Question = FakeEnum(8)
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class QFileDialog:
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"""Minimaler Mock für QFileDialog."""
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@staticmethod
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def getOpenFileName(*args, **kwargs):
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return ("", "") # kein Dateipfad
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YES = QMessageBox.Yes
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NO = QMessageBox.No
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CANCEL = QMessageBox.Cancel
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ICON_QUESTION = QMessageBox.Question
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def exec_dialog(dialog):
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"""Mock-Ausführung: gibt YES zurück, außer Tests patchen es."""
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return YES
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# -------------------------
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# Mock Netzwerk-Klassen
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# -------------------------
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class QEventLoop:
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def exec(self):
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return 0
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def quit(self):
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pass
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class QUrl(str):
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pass
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class QNetworkRequest:
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def __init__(self, url):
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self.url = url
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class QNetworkReply:
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def __init__(self):
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self._data = b""
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def readAll(self):
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return self._data
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def error(self):
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return 0
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def exec_dialog(dialog):
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return YES
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