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fix: update qgis4 compatibility #109

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Merged
lachlangrose merged 1 commit into from
Aug 4, 2026
Merged

fix: update qgis4 compatibility #109

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14 changes: 9 additions & 5 deletions loopstructural/gui/compatibility.py
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Original file line number Diff line number Diff line change
@@ -1,7 +1,14 @@
# compat.py
from qgis.PyQt.QtCore import QVariant

try:
if hasattr(QVariant, "Int"):
# QGIS 3 / PyQt5: QVariant still exposes the legacy .Type enum members.
# (QMetaType is importable under PyQt5 too, so we can't use that import
# to detect QGIS 4 - checking for the attribute QGIS 4 actually removed
# is the only reliable signal.)
QVariantCompat = QVariant
else:
# QGIS 4 / PyQt6: QVariant.Type was removed; use QMetaType instead.
from qgis.PyQt.QtCore import QMetaType

# We create a proxy class to mimic the old QVariant.Type behavior
Expand All @@ -12,9 +19,6 @@ class QVariantProxy:
Double = QMetaType.Type.Double
String = QMetaType.Type.QString
Bool = QMetaType.Type.Bool
DateTime = QMetaType.Type.QDateTime

# In QGIS 4, we use our proxy
QVariantCompat = QVariantProxy
except (ImportError, AttributeError):
# In QGIS 3, QVariant already has .Type
QVariantCompat = QVariant
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