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, 167 insertions, 0 deletions

diff --git a/src/quickcontrols2impl/qquickanimatednode.cpp b/src/quickcontrols2impl/qquickanimatednode.cpp
new file mode 100644
index 00000000..b4e665de
--- /dev/null
+++ b/src/quickcontrols2impl/qquickanimatednode.cpp
@@ -0,0 +1,167 @@
+/****************************************************************************
+**
+** Copyright (C) 2017 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the Qt Quick Controls 2 module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL3$
+** 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 http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPLv3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or later as published by the Free
+** Software Foundation and appearing in the file LICENSE.GPL included in
+** the packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 2.0 requirements will be
+** met: http://www.gnu.org/licenses/gpl-2.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qquickanimatednode_p.h"
+
+#include <QtQuick/qquickitem.h>
+#include <QtQuick/qquickwindow.h>
+
+// based on qtdeclarative/examples/quick/scenegraph/threadedanimation
+
+QT_BEGIN_NAMESPACE
+
+QQuickAnimatedNode::QQuickAnimatedNode(QQuickItem *target)
+    : m_window(target->window())
+{
+}
+
+bool QQuickAnimatedNode::isRunning() const
+{
+    return m_running;
+}
+
+int QQuickAnimatedNode::currentTime() const
+{
+    int time = m_currentTime;
+    if (m_running)
+        time += m_timer.elapsed();
+    return time;
+}
+
+void QQuickAnimatedNode::setCurrentTime(int time)
+{
+    m_currentTime = time;
+    m_timer.restart();
+}
+
+int QQuickAnimatedNode::duration() const
+{
+    return m_duration;
+}
+
+void QQuickAnimatedNode::setDuration(int duration)
+{
+    m_duration = duration;
+}
+
+int QQuickAnimatedNode::loopCount() const
+{
+    return m_loopCount;
+}
+
+void QQuickAnimatedNode::setLoopCount(int count)
+{
+    m_loopCount = count;
+}
+
+void QQuickAnimatedNode::sync(QQuickItem *target)
+{
+    Q_UNUSED(target);
+}
+
+QQuickWindow *QQuickAnimatedNode::window() const
+{
+    return m_window;
+}
+
+void QQuickAnimatedNode::start(int duration)
+{
+    if (m_running)
+        return;
+
+    m_running = true;
+    m_currentLoop = 0;
+    m_timer.restart();
+    if (duration > 0)
+        m_duration = duration;
+
+    connect(m_window, &QQuickWindow::beforeRendering, this, &QQuickAnimatedNode::advance, Qt::DirectConnection);
+    connect(m_window, &QQuickWindow::frameSwapped, this, &QQuickAnimatedNode::update, Qt::DirectConnection);
+
+    // If we're inside a QQuickWidget, this call is necessary to ensure the widget
+    // gets updated for the first time.
+    m_window->update();
+
+    emit started();
+}
+
+void QQuickAnimatedNode::restart()
+{
+    stop();
+    start();
+}
+
+void QQuickAnimatedNode::stop()
+{
+    if (!m_running)
+        return;
+
+    m_running = false;
+    disconnect(m_window, &QQuickWindow::beforeRendering, this, &QQuickAnimatedNode::advance);
+    disconnect(m_window, &QQuickWindow::frameSwapped, this, &QQuickAnimatedNode::update);
+    emit stopped();
+}
+
+void QQuickAnimatedNode::updateCurrentTime(int time)
+{
+    Q_UNUSED(time);
+}
+
+void QQuickAnimatedNode::advance()
+{
+    int time = currentTime();
+    if (time > m_duration) {
+        time = 0;
+        setCurrentTime(0);
+
+        if (m_loopCount > 0 && ++m_currentLoop >= m_loopCount) {
+            time = m_duration; // complete
+            stop();
+        }
+    }
+    updateCurrentTime(time);
+
+    // If we're inside a QQuickWidget, this call is necessary to ensure the widget gets updated.
+    m_window->update();
+}
+
+void QQuickAnimatedNode::update()
+{
+    if (m_running)
+        m_window->update();
+}
+
+QT_END_NAMESPACE