Find the Camera Raw clip buttons and swatches by their Qt base, as newer Qt requires

src/UI/CameraRawColorControls+Mixer.cpp

@@ -293,7 +293,8 @@ void CameraRawMixerControls::synchronize()
         }
     }
     for (size_t index = 0; index < points.size(); ++index) {
-        auto *pick = m_picked->findChild<Swatch *>(QStringLiteral("pickedColor%1").arg(index));
+        // Newer Qt finds only Q_OBJECT classes: found by base.
+        auto *pick = static_cast<Swatch *>(m_picked->findChild<QAbstractButton *>(QStringLiteral("pickedColor%1").arg(index)));
         pick->colour = hsb(points[index].hue, points[index].saturation, points[index].luminance);
         pick->chosen = int(index) == shown.pointIndex;
         pick->update();

src/UI/CameraRawControls.cpp

@@ -380,8 +380,9 @@ void CameraRawControls::synchronize()
                                                    "Right-click to show the vectorscope.")
                                   : QStringLiteral("Hue around the wheel, saturation outward from the center. Right-click to show the histogram."));
     m_scope->setAccessibleName(histogram ? QStringLiteral("RGB histogram") : QStringLiteral("Vectorscope"));
-    for (auto *clip : m_scope->findChildren<ClipButton *>()) {
-        const bool shadows = clip->objectName() == QLatin1String("shadowClipping");
+    // Found as QToolButtons: newer Qt finds only Q_OBJECT classes.
+    for (const bool shadows : {true, false}) {
+        auto *clip = static_cast<ClipButton *>(m_scope->findChild<QToolButton *>(shadows ? QStringLiteral("shadowClipping") : QStringLiteral("highlightClipping")));
         clip->on = edit && (shadows ? edit->rawPanel.showsShadowClipping : edit->rawPanel.showsHighlightClipping);
         clip->update();
     }