From acdcbd48aed7e3e83002d8f2f7b5bddf74892429 Mon Sep 17 00:00:00 2001
From: Zach Pearson <zjp@cgl.ucsf.edu>
Date: Thu, 18 Apr 2024 13:58:37 -0700
Subject: [PATCH] compat.py: Add utility functions that convert between ints
 and Qt Enums

---
 qtpy/compat.py            | 22 ++++++++++++++++++++++
 qtpy/tests/test_compat.py | 13 +++++++++++++
 2 files changed, 35 insertions(+)

diff --git a/qtpy/compat.py b/qtpy/compat.py
index 4c6d428f..50834065 100644
--- a/qtpy/compat.py
+++ b/qtpy/compat.py
@@ -6,6 +6,7 @@
 Compatibility functions
 """
 import sys
+import enum
 
 from . import (
     PYQT5,
@@ -200,3 +201,24 @@ def isalive(obj):
 
         return shiboken.isValid(obj)
     return None
+
+
+# =============================================================================
+def getenumasint(enum_value):
+    """Get the integer value of a Qt enum
+    For example:
+        Qt.AlignmentFlag.AlignBaseline -> 256
+        Qt.WidgetAttribute.WA_AcceptDrops -> 78
+    If an integer is passed in, simply return it.
+    PySide2's enums are themselves classes, not enum values per se, so if
+    we get an integer or a class, return the class.
+    """
+    if isinstance(enum_value, enum.Enum):
+        return enum_value.value
+    return enum_value
+
+
+# =============================================================================
+def getenumfromint(enum_class, i):
+    """Get the Qt enum value from an integer"""
+    return enum_class(i)
diff --git a/qtpy/tests/test_compat.py b/qtpy/tests/test_compat.py
index 1e1fc28f..da53606f 100644
--- a/qtpy/tests/test_compat.py
+++ b/qtpy/tests/test_compat.py
@@ -1,4 +1,5 @@
 """Test the compat module."""
+
 import sys
 
 import pytest
@@ -22,3 +23,15 @@ def test_isalive(qtbot):
     with qtbot.waitSignal(test_widget.destroyed):
         test_widget.deleteLater()
     assert compat.isalive(test_widget) is False
+
+
+def test_getenumasint():
+    """Test compat.getenumasint"""
+    assert compat.getenumasint(QtWidgets.QSizePolicy.Policy.Maximum) == 4
+    assert compat.getenumasint(5) == 5
+
+
+def test_getenumfromint():
+    """Test compat.getenumfromint"""
+    enum_value = compat.getenumfromint(QtWidgets.QSizePolicy.Policy, 7)
+    assert enum_value == QtWidgets.QSizePolicy.Policy.Expanding