QQuickAttachedObject: add pimpl support

Allow passing QObjectPrivate, so sub classes can use pimpl if they
want, like the old QQuickPalette implementation already does...

Change-Id: I48b6256bf63cb91697753ba9b5644c649574fdb0
Reviewed-by: Mitch Curtis <mitch.curtis@qt.io>

2 files changed, 8 insertions, 0 deletions

diff --git a/src/quickcontrols2/qquickattachedobject.cpp b/src/quickcontrols2/qquickattachedobject.cpp
index e668c75c..bada982e 100644
--- a/src/quickcontrols2/qquickattachedobject.cpp
+++ b/src/quickcontrols2/qquickattachedobject.cpp
@@ -159,6 +159,12 @@ QQuickAttachedObject::QQuickAttachedObject(QObject *parent) : QObject(parent)
     attachTo(parent);
 }
 
+QQuickAttachedObject::QQuickAttachedObject(QObjectPrivate &dd, QObject *parent)
+    : QObject(dd, parent)
+{
+    attachTo(parent);
+}
+
 QQuickAttachedObject::~QQuickAttachedObject()
 {
     detachFrom(parent());
diff --git a/src/quickcontrols2/qquickattachedobject_p.h b/src/quickcontrols2/qquickattachedobject_p.h
index 923bdef9..5d4194ef 100644
--- a/src/quickcontrols2/qquickattachedobject_p.h
+++ b/src/quickcontrols2/qquickattachedobject_p.h
@@ -73,6 +73,8 @@ public:
     void setAttachedParent(QQuickAttachedObject *parent);
 
 protected:
+    QQuickAttachedObject(QObjectPrivate &dd, QObject *parent = nullptr);
+
     void init();
 
     virtual void attachedParentChange(QQuickAttachedObject *newParent, QQuickAttachedObject *oldParent);