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diff --git a/src/plugins/renderers/opengl/debug/imguirenderer_p.h b/src/plugins/renderers/opengl/debug/imguirenderer_p.h
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+++ b/src/plugins/renderers/opengl/debug/imguirenderer_p.h
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+/****************************************************************************
+**
+** Copyright (C) 2019 Klaralvdalens Datakonsult AB (KDAB).
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the Qt3D 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 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.
+**
+** 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.LGPL3 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-3.0.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 (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QT3D_RENDER_GL_IMGUIRENDER_H_
+#define QT3D_RENDER_GL_IMGUIRENDER_H_
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists for the convenience
+// of other Qt classes.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <QObject>
+#include <QOpenGLFunctions>
+#include <QPoint>
+#include <memory>
+
+struct ImDrawData;
+
+QT_BEGIN_NAMESPACE
+
+class QMouseEvent;
+class QWheelEvent;
+class QKeyEvent;
+class QOpenGLExtraFunctions;
+class QOpenGLShaderProgram;
+
+namespace Qt3DCore {
+class QServiceLocator;
+}
+
+namespace Qt3DRender {
+namespace Render {
+namespace OpenGL {
+class RenderView;
+class Renderer;
+}
+
+namespace Debug {
+
+#define IMGUI_PERF_LOG_SIZE 30
+
+class ImGuiRenderer : public QObject {
+    Q_OBJECT
+public:
+    ImGuiRenderer(Qt3DRender::Render::OpenGL::Renderer *renderer);
+
+    void processEvent(QEvent *event);
+    void renderDebugOverlay(const QVector<Render::OpenGL::RenderView *> &renderViews, const Render::OpenGL::RenderView *renderView, int jobsInLastFrame);
+
+    void setCapabilities(const QString &capabilities);
+
+private:
+    bool newFrame(const Render::OpenGL::RenderView *renderView);
+    void renderDrawList(ImDrawData *draw_data);
+    void onMouseChange(QMouseEvent *event);
+    void onWheel(QWheelEvent *event);
+    void onKeyPressRelease(QKeyEvent *event);
+    void showGLInfo();
+    void showRenderDetails(const QVector<Render::OpenGL::RenderView *> &renderViews);
+
+    bool createFontsTexture();
+    bool createDeviceObjects();
+
+    double       m_time = 0.;
+    bool         m_mousePressed[3] = { false, false, false };
+    float        m_mouseWheel;
+    float        m_mouseWheelH;
+    GLuint       m_fontTexture = 0;
+    GLuint       m_shaderHandle = 0, m_vertHandle = 0, m_fragHandle = 0;
+    int          m_attribLocationTex = 0, m_attribLocationProjMtx = 0;
+    int          m_attribLocationPosition = 0, m_attribLocationUV = 0, m_attribLocationColor = 0;
+    unsigned int m_vboHandle = 0, m_vaoHandle = 0, m_elementsHandle = 0;
+
+    Render::OpenGL::Renderer *m_renderer;
+    QOpenGLExtraFunctions *m_funcs = nullptr;
+    QOpenGLShaderProgram *m_shader = nullptr;
+
+    bool         m_showGLInfoWindow = false;
+    bool         m_showRenderDetailsWindow = false;
+
+    float        m_fpsLog[IMGUI_PERF_LOG_SIZE];
+    float        m_jobsLog[IMGUI_PERF_LOG_SIZE];
+    std::pair<float, float> m_fpsRange;
+    std::pair<float, float> m_jobsRange;
+
+    QByteArray   m_capabilities;
+};
+
+} // namespace Debug
+} // namespace Render
+} // namespace Qt3DRender
+
+QT_END_NAMESPACE
+
+#endif // QT3D_RENDER_GL_IMGUIRENDER_H_