fix: minimum size hint for QElidingLabel (#260)

src/superqt/elidable/_eliding_label.py

@@ -73,3 +73,10 @@ def sizeHint(self) -> QSize:
         flags = int(self.alignment() | Qt.TextFlag.TextWordWrap)
         r = fm.boundingRect(QRect(QPoint(0, 0), self.size()), flags, self._text)
         return QSize(self.width(), r.height())
+
+    def minimumSizeHint(self) -> QSize:
+        # The smallest that self._elidedText can be is just the ellipsis.
+        fm = QFontMetrics(self.font())
+        flags = int(self.alignment() | Qt.TextFlag.TextWordWrap)
+        r = fm.boundingRect(QRect(QPoint(0, 0), self.size()), flags, "...")
+        return QSize(r.width(), r.height())

tests/test_eliding_label.py

@@ -69,3 +69,14 @@ def test_wrap_text():
     assert isinstance(wrap, list)
     assert all(isinstance(x, str) for x in wrap)
     assert 9 <= len(wrap) <= 13
+
+
+def test_minimum_size_hint():
+    # The hint should always just be the space needed for "..."
+    wdg = QElidingLabel()
+    size_hint = wdg.minimumSizeHint()
+    # Regardless of what text is contained
+    wdg.setText(TEXT)
+    new_hint = wdg.minimumSizeHint()
+    assert size_hint.width() == new_hint.width()
+    assert size_hint.height() == new_hint.height()