QmlDesigner: Implement different render path for Qt 6

When building with Qt 6 or if qmlpuppet_unifiedRenderPath is set
in the environment we switch to a different render path.
In this case we use QQuickWindow::grabWindow() and render the root item.
No composition is done in the Qt Creator process anymore.
This is a similar approach we already take for the 3D view.
Performance is acceptable and we fix rendering issues related to
effects and layers.

Change-Id: Ic963eca047e0bf16ca3a099ec94658ae2af0fb63
Reviewed-by: Thomas Hartmann <thomas.hartmann@qt.io>
Reviewed-by: Miikka Heikkinen <miikka.heikkinen@qt.io>

1 files changed, 8 insertions, 0 deletions

diff --git a/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/quickitemnodeinstance.h b/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/quickitemnodeinstance.h
index f42e45a8ff..2c68fe7974 100644
--- a/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/quickitemnodeinstance.h
+++ b/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/quickitemnodeinstance.h
@@ -45,6 +45,7 @@ public:
 
     static Pointer create(QObject *objectToBeWrapped);
     static void createEffectItem(bool createEffectItem);
+    static void enableUnifiedRenderPath(bool createEffectItem);
 
     void initialize(const ObjectNodeInstance::Pointer &objectNodeInstance,
                     InstanceContainer::NodeFlags flags) override;
@@ -70,6 +71,8 @@ public:
     QImage renderImage() const override;
     QImage renderPreviewImage(const QSize &previewImageSize) const override;
 
+    QSharedPointer<QQuickItemGrabResult> createGrabResult() const override;
+
     void updateAllDirtyNodesRecursive() override;
 
 
@@ -98,6 +101,9 @@ public:
     QList<QQuickItem*> allItemsRecursive() const override;
     QStringList allStates() const override;
 
+    static void updateDirtyNode(QQuickItem *item);
+    static bool unifiedRenderPath();
+
 protected:
     explicit QuickItemNodeInstance(QQuickItem*);
     QQuickItem *quickItem() const;
@@ -118,6 +124,7 @@ protected:
 
     double x() const;
     double y() const;
+    bool checkIfRefFromEffect(qint32 id);
 
 private: //variables
     QPointer<QQuickItem> m_contentItem;
@@ -131,6 +138,7 @@ private: //variables
     double m_width;
     double m_height;
     static bool s_createEffectItem;
+    static bool s_unifiedRenderPath;
 };
 
 } // namespace Internal