Add OpenGLInfo attached type

[ChangeLog][QtQuick] Introduced OpenGLInfo attached type that
provides information about the currently used OpenGL version.

Change-Id: Ibdf365decf9d6331cf91c0bf541e493ced02a417
Reviewed-by: Laszlo Agocs <laszlo.agocs@digia.com>
Reviewed-by: Gunnar Sletta <gunnar.sletta@jollamobile.com>

1 files changed, 122 insertions, 0 deletions

diff --git a/src/quick/items/qquickopenglinfo_p.h b/src/quick/items/qquickopenglinfo_p.h
new file mode 100644
index 0000000000..70684a2f40
--- /dev/null
+++ b/src/quick/items/qquickopenglinfo_p.h
@@ -0,0 +1,122 @@
+/****************************************************************************
+**
+** Copyright (C) 2014 BlackBerry Ltd.
+** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the QtQuick module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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 Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/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 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 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 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QQUICKOPENGLINFO_P_H
+#define QQUICKOPENGLINFO_P_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 <QtCore/qobject.h>
+#include <QtCore/qpointer.h>
+#include <QtGui/qsurfaceformat.h>
+#include <QtQml/qqml.h>
+
+QT_BEGIN_NAMESPACE
+
+class QQuickItem;
+class QQuickWindow;
+
+class QQuickOpenGLInfo : public QObject
+{
+    Q_OBJECT
+    Q_PROPERTY(int majorVersion READ majorVersion NOTIFY majorVersionChanged FINAL)
+    Q_PROPERTY(int minorVersion READ minorVersion NOTIFY minorVersionChanged FINAL)
+    Q_PROPERTY(ContextProfile profile READ profile NOTIFY profileChanged FINAL)
+    Q_PROPERTY(RenderableType renderableType READ renderableType NOTIFY renderableTypeChanged FINAL)
+    Q_ENUMS(ContextProfile RenderableType)
+
+public:
+    QQuickOpenGLInfo(QQuickItem *item = 0);
+
+    int majorVersion() const;
+    int minorVersion() const;
+
+    // keep in sync with QSurfaceFormat::OpenGLContextProfile
+    enum ContextProfile {
+        NoProfile = QSurfaceFormat::NoProfile,
+        CoreProfile = QSurfaceFormat::CoreProfile,
+        CompatibilityProfile = QSurfaceFormat::CompatibilityProfile
+    };
+    ContextProfile profile() const;
+
+    // keep in sync with QSurfaceFormat::RenderableType
+    enum RenderableType {
+        Unspecified = QSurfaceFormat::DefaultRenderableType,
+        OpenGL = QSurfaceFormat::OpenGL,
+        OpenGLES = QSurfaceFormat::OpenGLES
+    };
+    RenderableType renderableType() const;
+
+    static QQuickOpenGLInfo *qmlAttachedProperties(QObject *object);
+
+Q_SIGNALS:
+    void majorVersionChanged();
+    void minorVersionChanged();
+    void profileChanged();
+    void renderableTypeChanged();
+
+private Q_SLOTS:
+    void updateFormat();
+    void setWindow(QQuickWindow *window);
+
+private:
+    QPointer<QQuickWindow> m_window;
+    int m_majorVersion;
+    int m_minorVersion;
+    ContextProfile m_profile;
+    RenderableType m_renderableType;
+};
+
+QT_END_NAMESPACE
+
+QML_DECLARE_TYPEINFO(QQuickOpenGLInfo, QML_HAS_ATTACHED_PROPERTIES)
+
+#endif // QQUICKOPENGLINFO_P_H