/////////////////////////////////////////////////////////////////////////////
// Name:        include/wx/qt/glcanvas.cpp
// Author:      Sean D'Epagnier
// Copyright:   (c) Sean D'Epagnier 2014
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

#ifndef _WX_GLCANVAS_H_
#define _WX_GLCANVAS_H_

#include <GL/gl.h>

class QOpenGLWidget;
class QOpenGLContext;
class QSurfaceFormat;

class WXDLLIMPEXP_GL wxGLContext : public wxGLContextBase
{
public:
    wxGLContext(wxGLCanvas *win,
                const wxGLContext *other = nullptr,
                const wxGLContextAttrs *ctxAttrs = nullptr);
///    virtual ~wxGLContext();

    virtual bool SetCurrent(const wxGLCanvas& win) const override;

private:
    QOpenGLContext* m_glContext = nullptr;

    wxDECLARE_CLASS(wxGLContext);
};

// ----------------------------------------------------------------------------
// wxGLCanvas: OpenGL output window
// ----------------------------------------------------------------------------

class WXDLLIMPEXP_GL wxGLCanvas : public wxGLCanvasBase
{
public:
    wxGLCanvas() = default;

    explicit // avoid implicitly converting a wxWindow* to wxGLCanvas
    wxGLCanvas(wxWindow *parent,
               const wxGLAttributes& dispAttrs,
               wxWindowID id = wxID_ANY,
               const wxPoint& pos = wxDefaultPosition,
               const wxSize& size = wxDefaultSize,
               long style = 0,
               const wxString& name = wxGLCanvasName,
               const wxPalette& palette = wxNullPalette);

    explicit
    wxGLCanvas(wxWindow *parent,
               wxWindowID id = wxID_ANY,
               const int *attribList = nullptr,
               const wxPoint& pos = wxDefaultPosition,
               const wxSize& size = wxDefaultSize,
               long style = 0,
               const wxString& name = wxGLCanvasName,
               const wxPalette& palette = wxNullPalette);

    ~wxGLCanvas();

    bool Create(wxWindow *parent,
                const wxGLAttributes& dispAttrs,
                wxWindowID id = wxID_ANY,
                const wxPoint& pos = wxDefaultPosition,
                const wxSize& size = wxDefaultSize,
                long style = 0,
                const wxString& name = wxGLCanvasName,
                const wxPalette& palette = wxNullPalette);

    bool Create(wxWindow *parent,
                wxWindowID id = wxID_ANY,
                const wxPoint& pos = wxDefaultPosition,
                const wxSize& size = wxDefaultSize,
                long style = 0,
                const wxString& name = wxGLCanvasName,
                const int *attribList = nullptr,
                const wxPalette& palette = wxNullPalette);

    virtual bool SwapBuffers() override;

    virtual bool QtCanPaintWithoutActivePainter() const override;

    static bool ConvertWXAttrsToQtGL(const wxGLAttributes &glattrs, const wxGLContextAttrs ctxAttrs, QSurfaceFormat &format);

private:
    wxDECLARE_CLASS(wxGLCanvas);
};

#endif // _WX_GLCANVAS_H_