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, 211 insertions, 0 deletions

diff --git a/src/quickcontrols2impl/qquickpaddedrectangle.cpp b/src/quickcontrols2impl/qquickpaddedrectangle.cpp
new file mode 100644
index 00000000..fd9e9d90
--- /dev/null
+++ b/src/quickcontrols2impl/qquickpaddedrectangle.cpp
@@ -0,0 +1,211 @@
+/****************************************************************************
+**
+** 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 "qquickpaddedrectangle_p.h"
+
+#include <QtQuick/private/qsgadaptationlayer_p.h>
+
+QT_BEGIN_NAMESPACE
+
+QQuickPaddedRectangle::QQuickPaddedRectangle(QQuickItem *parent) :
+    QQuickRectangle(parent)
+{
+}
+
+qreal QQuickPaddedRectangle::padding() const
+{
+    return m_padding;
+}
+
+void QQuickPaddedRectangle::setPadding(qreal padding)
+{
+    if (!qFuzzyCompare(m_padding, padding)) {
+        m_padding = padding;
+        update();
+        emit paddingChanged();
+        if (m_hasTopPadding)
+            emit topPaddingChanged();
+        if (!m_hasLeftPadding)
+            emit leftPaddingChanged();
+        if (!m_hasRightPadding)
+            emit rightPaddingChanged();
+        if (!m_hasBottomPadding)
+            emit bottomPaddingChanged();
+    }
+}
+
+void QQuickPaddedRectangle::resetPadding()
+{
+    setPadding(0);
+}
+
+qreal QQuickPaddedRectangle::topPadding() const
+{
+    return m_hasTopPadding ? m_topPadding : m_padding;
+}
+
+void QQuickPaddedRectangle::setTopPadding(qreal padding)
+{
+    setTopPadding(padding, true);
+}
+
+void QQuickPaddedRectangle::resetTopPadding()
+{
+    setTopPadding(0, false);
+}
+
+qreal QQuickPaddedRectangle::leftPadding() const
+{
+    return m_hasLeftPadding ? m_leftPadding : m_padding;
+}
+
+void QQuickPaddedRectangle::setLeftPadding(qreal padding)
+{
+    setLeftPadding(padding, true);
+}
+
+void QQuickPaddedRectangle::resetLeftPadding()
+{
+    setLeftPadding(0, false);
+}
+
+qreal QQuickPaddedRectangle::rightPadding() const
+{
+    return m_hasRightPadding ? m_rightPadding : m_padding;
+}
+
+void QQuickPaddedRectangle::setRightPadding(qreal padding)
+{
+    setRightPadding(padding, true);
+}
+
+void QQuickPaddedRectangle::resetRightPadding()
+{
+    setRightPadding(0, false);
+}
+
+qreal QQuickPaddedRectangle::bottomPadding() const
+{
+    return m_hasBottomPadding ? m_bottomPadding : m_padding;
+}
+
+void QQuickPaddedRectangle::setBottomPadding(qreal padding)
+{
+    setBottomPadding(padding, true);
+}
+
+void QQuickPaddedRectangle::resetBottomPadding()
+{
+    setBottomPadding(0, false);
+}
+
+void QQuickPaddedRectangle::setTopPadding(qreal padding, bool has)
+{
+    qreal oldPadding = topPadding();
+    m_hasTopPadding = has;
+    m_topPadding = padding;
+    if (!qFuzzyCompare(oldPadding, padding)) {
+        update();
+        emit topPaddingChanged();
+    }
+}
+
+void QQuickPaddedRectangle::setLeftPadding(qreal padding, bool has)
+{
+    qreal oldPadding = leftPadding();
+    m_hasLeftPadding = has;
+    m_leftPadding = padding;
+    if (!qFuzzyCompare(oldPadding, padding)) {
+        update();
+        emit leftPaddingChanged();
+    }
+}
+
+void QQuickPaddedRectangle::setRightPadding(qreal padding, bool has)
+{
+    qreal oldPadding = rightPadding();
+    m_hasRightPadding = has;
+    m_rightPadding = padding;
+    if (!qFuzzyCompare(oldPadding, padding)) {
+        update();
+        emit rightPaddingChanged();
+    }
+}
+
+void QQuickPaddedRectangle::setBottomPadding(qreal padding, bool has)
+{
+    qreal oldPadding = bottomPadding();
+    m_hasBottomPadding = has;
+    m_bottomPadding = padding;
+    if (!qFuzzyCompare(oldPadding, padding)) {
+        update();
+        emit bottomPaddingChanged();
+    }
+}
+
+QSGNode *QQuickPaddedRectangle::updatePaintNode(QSGNode *node, UpdatePaintNodeData *data)
+{
+    QSGTransformNode *transformNode = static_cast<QSGTransformNode *>(node);
+    if (!transformNode)
+        transformNode = new QSGTransformNode;
+
+    QSGInternalRectangleNode *rectNode = static_cast<QSGInternalRectangleNode *>(QQuickRectangle::updatePaintNode(transformNode->firstChild(), data));
+
+    if (rectNode) {
+        if (!transformNode->firstChild())
+            transformNode->appendChildNode(rectNode);
+
+        qreal top = topPadding();
+        qreal left = leftPadding();
+        qreal right = rightPadding();
+        qreal bottom = bottomPadding();
+
+        if (!qFuzzyIsNull(top) || !qFuzzyIsNull(left) || !qFuzzyIsNull(right) || !qFuzzyIsNull(bottom)) {
+            QMatrix4x4 m;
+            m.translate(left, top);
+            transformNode->setMatrix(m);
+
+            qreal w = qMax<qreal>(0.0, width() -left-right);
+            qreal h = qMax<qreal>(0.0, height() -top-bottom);
+
+            rectNode->setRect(QRectF(0, 0, w, h));
+            rectNode->update();
+        }
+    }
+    return transformNode;
+}
+
+QT_END_NAMESPACE