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>

2 files changed, 75 insertions, 0 deletions

diff --git a/tests/auto/qquickapplicationwindow/data/opacity.qml b/tests/auto/qquickapplicationwindow/data/opacity.qml
new file mode 100644
index 00000000..cd969307
--- /dev/null
+++ b/tests/auto/qquickapplicationwindow/data/opacity.qml
@@ -0,0 +1,61 @@
+/****************************************************************************
+**
+** Copyright (C) 2020 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** BSD License Usage
+** Alternatively, you may use this file under the terms of the BSD license
+** as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of The Qt Company Ltd nor the names of its
+**     contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+import QtQuick 2.12
+import QtQuick.Controls 2.12
+
+ApplicationWindow {
+    title: "Test Application Window"
+    width: 300
+    height: 300
+    opacity: 0.5
+
+    property bool testActive: active
+}
diff --git a/tests/auto/qquickapplicationwindow/tst_qquickapplicationwindow.cpp b/tests/auto/qquickapplicationwindow/tst_qquickapplicationwindow.cpp
index baaa3503..347c955e 100644
--- a/tests/auto/qquickapplicationwindow/tst_qquickapplicationwindow.cpp
+++ b/tests/auto/qquickapplicationwindow/tst_qquickapplicationwindow.cpp
@@ -78,6 +78,7 @@ private slots:
     void clearFocusOnDestruction();
     void layout();
     void componentComplete();
+    void opacity();
 };
 
 void tst_QQuickApplicationWindow::qmlCreation()
@@ -871,6 +872,19 @@ void tst_QQuickApplicationWindow::componentComplete()
     QVERIFY(qmlWindow->isComponentComplete());
 }
 
+void tst_QQuickApplicationWindow::opacity()
+{
+    QQmlEngine engine;
+    QQmlComponent component(&engine);
+    component.loadUrl(testFileUrl("opacity.qml"));
+
+    QScopedPointer<QObject> object(component.create());
+    QVERIFY2(!object.isNull(), qPrintable(component.errorString()));
+
+    QQuickApplicationWindow *window = qobject_cast<QQuickApplicationWindow *>(object.data());
+    QVERIFY(window);
+}
+
 QTEST_MAIN(tst_QQuickApplicationWindow)
 
 #include "tst_qquickapplicationwindow.moc"