Adding more DesignerSupport functions

The new functions/enablers are split into new classes.

* DesignerSupportItems
  Helper functions to tweak and create items.

* DesignerSupportProperties
  Helper functions to deal with properties and bindings.

* DesignerSupportPropertyChanges
  Helper functions to deal with PropertyChanges.

* DesignerSupportStates
  Helper functions to deal with States.

* DesignerSupportMetaInfo
  Two helper functions to deal with meta info and notication.

DesignerMetaObject is a specialized QQmlVMEMetaObject that implments
notification of property changes and allows to create dynamic properties.

DesignerCustomObjectData provides additional data for each Object. The
main functionality atm is to keep the default values and bindings for
properties, so they can be restored.

Change-Id: I6b6f501c8c5848d62bfcb7e704bc45662e731d54
Reviewed-by: Thomas Hartmann <Thomas.Hartmann@digia.com>

1 files changed, 98 insertions, 0 deletions

diff --git a/src/quick/designer/qquickdesignersupportproperties_p.h b/src/quick/designer/qquickdesignersupportproperties_p.h
new file mode 100644
index 0000000000..187bc6e2a6
--- /dev/null
+++ b/src/quick/designer/qquickdesignersupportproperties_p.h
@@ -0,0 +1,98 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the QtQuick module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL21$
+** 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 2.1 or version 3 as published by the Free
+** Software Foundation and appearing in the file LICENSE.LGPLv21 and
+** LICENSE.LGPLv3 included in the packaging of this file. Please review the
+** following information to ensure the GNU Lesser General Public License
+** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** As a special exception, The Qt Company gives you certain additional
+** rights. These rights are described in The Qt Company LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef DESIGNERSUPPORTPROPERTIES_H
+#define DESIGNERSUPPORTPROPERTIES_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include "qquickdesignersupport_p.h"
+
+#include <QObject>
+#include <QString>
+#include <QVariant>
+#include <QList>
+#include <QByteArray>
+#include <QQmlContext>
+#include <QQmlListReference>
+
+QT_BEGIN_NAMESPACE
+
+class Q_QUICK_EXPORT QQuickDesignerSupportProperties
+{
+public:
+    static void createNewDynamicProperty(QObject *object, QQmlEngine *engine, const QString &name);
+    static void registerNodeInstanceMetaObject(QObject *object, QQmlEngine *engine);
+    static void registerCustomData(QObject *object);
+    static QVariant getResetValue(QObject *object, const QQuickDesignerSupport::PropertyName &propertyName);
+    static void doResetProperty(QObject *object, QQmlContext *context, const QQuickDesignerSupport::PropertyName &propertyName);
+    static bool hasValidResetBinding(QObject *object, const QQuickDesignerSupport::PropertyName &propertyName);
+
+    static bool hasBindingForProperty(QObject *object,
+                                      QQmlContext *context,
+                                      const QQuickDesignerSupport::PropertyName &propertyName,
+                                      bool *hasChanged);
+    static void setPropertyBinding(QObject *object,
+                                   QQmlContext *context,
+                                   const QQuickDesignerSupport::PropertyName &propertyName,
+                                   const QString &expression);
+    static void keepBindingFromGettingDeleted(QObject *object,
+                                              QQmlContext *context,
+                                              const QQuickDesignerSupport::PropertyName &propertyName);
+
+    static bool isPropertyQObject(const QMetaProperty &metaProperty);
+    static QObject *readQObjectProperty(const QMetaProperty &metaProperty, QObject *object);
+
+    static void getPropertyCache(QObject *object, QQmlEngine *engine);
+    static bool isPropertyBlackListed(const QQuickDesignerSupport::PropertyName &propertyName);
+    static QQuickDesignerSupport::PropertyNameList propertyNameListForWritableProperties(QObject *object,
+                                                                  const QQuickDesignerSupport::PropertyName &baseName = QQuickDesignerSupport::PropertyName(),
+                                                                  QObjectList *inspectedObjects = 0);
+    static QQuickDesignerSupport::PropertyNameList allPropertyNames(QObject *object,
+                                             const QQuickDesignerSupport::PropertyName &baseName = QQuickDesignerSupport::PropertyName(),
+                                             QObjectList *inspectedObjects = 0);
+    static bool hasFullImplementedListInterface(const QQmlListReference &list);
+};
+
+QT_END_NAMESPACE
+
+#endif // DESIGNERSUPPORTPROPERTIES_H