Register C++ types declaratively

Adapt to the new way of registering C++ types. The types need to be
seen at compile time so that code can be generated that invokes them.

This patch:

- Adds QML_* macros where applicable.
- Adapts the build system files to the new way of registering modules.
- Splits up the QtQuick.Controls[.*].impl files into their own plugins,
  as we can only register one QML module per .pro file.
- Removes C++ type registration calls in every plugin.
- Moves private types from src/quickcontrols2/quickcontrols2.pro
  to src/quickcontrols2/impl/quickcontrols2-impl.pro. Some of these
  types need to be exposed to QML, but quickcontrols2.pro is already in
  use to declare the QtQuick.Controls import (and also provides the
  public C++ QQuickStyle API), and the new QML_IMPORT_NAME/VERSION
  syntax only allows one module per project. As some of the types that
  need to be exposed to QML are also referenced by some C++ code (e.g.
  tests, etc.), we just move all of the private types to the new
  library.

Follow-up patches will register the QML types declaratively.

Task-number: QTBUG-82922
Change-Id: Iaf9ee106237d61701d57a8896f3822304c8151a6
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>

1 files changed, 5 insertions, 1 deletions

diff --git a/src/imports/controls/imagine/qquickimaginestyle_p.h b/src/imports/controls/imagine/qquickimaginestyle_p.h
index 20a4baf0..212096b9 100644
--- a/src/imports/controls/imagine/qquickimaginestyle_p.h
+++ b/src/imports/controls/imagine/qquickimaginestyle_p.h
@@ -48,9 +48,9 @@
 // We mean it.
 //
 
-#include <QtQuickControls2/private/qquickattachedobject_p.h>
 #include <QtCore/qvariant.h>
 #include <QtQml/qqml.h>
+#include <QtQuickControls2Impl/private/qquickattachedobject_p.h>
 
 QT_BEGIN_NAMESPACE
 
@@ -59,6 +59,10 @@ class QQuickImagineStyle : public QQuickAttachedObject
     Q_OBJECT
     Q_PROPERTY(QString path READ path WRITE setPath RESET resetPath NOTIFY pathChanged FINAL)
     Q_PROPERTY(QUrl url READ url NOTIFY pathChanged FINAL)
+    QML_NAMED_ELEMENT(Imagine)
+    QML_ATTACHED(QQuickImagineStyle)
+    QML_UNCREATABLE("")
+    QML_ADDED_IN_VERSION(2, 3)
 
 public:
     explicit QQuickImagineStyle(QObject *parent = nullptr);