Why can't wxwidgets and sfml play nice?

[cheeseboy]

I want to use sfml with wxwidgets. I tried to follow a rather dated tutorial because there isn't a more recent one.

Tutorials here: http://sfml-dev.org/tutorials/1.6/graphics-wxwidgets.php

The tutorial is for sfml1.6 and wxwidgets 2.x however I want to use sfml2.1 with wxwidgets 3 but the code wont compile. Apparently win_gtk.h is now a private header and unaccessible in gtk3? This header contains gtk_pizza. As for the display() error I have no idea what's wrong there... Anyway to make everything play nice?

Here's my code:

#include <SFML/Graphics.hpp>

#include <wx/wx.h>

#ifdef __WXGTK__
    #include <gdk/gdkx.h>
    #include <gtk/gtk.h>
    // #include <wx/gtk/win_gtk.h> this doesn't exist in wxwidgets3?
#endif


class wxSFMLCanvas : public wxControl, public sf::RenderWindow
{
public :

    wxSFMLCanvas(wxWindow* Parent = NULL, wxWindowID Id = -1, const wxPoint& Position = wxDefaultPosition,
                 const wxSize& Size = wxDefaultSize, long Style = 0);

    virtual ~wxSFMLCanvas();

private :

    DECLARE_EVENT_TABLE()

    virtual void OnUpdate();

    void OnIdle(wxIdleEvent&);

    void OnPaint(wxPaintEvent&);

    void OnEraseBackground(wxEraseEvent&);
};

void wxSFMLCanvas::OnIdle(wxIdleEvent&)
{
    // Send a paint message when the control is idle, to ensure maximum framerate
    Refresh();
}

void wxSFMLCanvas::OnPaint(wxPaintEvent&)
{
    // Prepare the control to be repainted
    wxPaintDC Dc(this);

    // Let the derived class do its specific stuff
    OnUpdate();

    // Display on screen
    Display();
}


wxSFMLCanvas::wxSFMLCanvas(wxWindow* Parent, wxWindowID Id, const wxPoint& Position, const wxSize& Size, long Style) :
wxControl(Parent, Id, Position, Size, Style)
{
    #ifdef __WXGTK__

        // GTK implementation requires to go deeper to find the
        // low-level X11 identifier of the widget
        gtk_widget_realize(m_wxwindow);
        gtk_widget_set_double_buffered(m_wxwindow, false);
        GdkWindow* Win = GTK_PIZZA(m_wxwindow)->bin_window;
        XFlush(GDK_WINDOW_XDISPLAY(Win));
        //sf::RenderWindow::Create(GDK_WINDOW_XWINDOW(Win));

    #else

        // Tested under Windows XP only (should work with X11
        // and other Windows versions - no idea about MacOS)
        //sf::RenderWindow::Create(GetHandle());

    #endif
}

Here are the errors:

[greg@greg-desktop polyedit]$ make
g++ -g -I. -I/usr/lib/wx/include/gtk2-unicode-3.0 -I/usr/include/wx-3.0 -D_FILE_OFFSET_BITS=64 -DWXUSINGDLL -D__WXGTK__ -pthread -I/usr/include/gtk-2.0 -I/usr/lib/gtk-2.0/include -I/usr/include/pango-1.0 -I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/pixman-1 -I/usr/include/libdrm -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/libpng16 -I/usr/include/pango-1.0 -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/harfbuzz -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/harfbuzz   -MMD -MP -c -o .eobjs/./main.o main.cpp
main.cpp: In member function 'void wxSFMLCanvas::OnPaint(wxPaintEvent&)':
main.cpp:49:13: error: invalid use of incomplete type 'Display {aka struct _XDisplay}'
     Display();
             ^
In file included from /usr/include/wx-3.0/wx/cursor.h:69:0,
                 from /usr/include/wx-3.0/wx/event.h:21,
                 from /usr/include/wx-3.0/wx/wx.h:24,
                 from main.cpp:3:
/usr/include/wx-3.0/wx/utils.h:778:15: error: forward declaration of 'Display {aka struct _XDisplay}'
 inline struct _XDisplay *wxGetX11Display()
               ^
main.cpp: In constructor 'wxSFMLCanvas::wxSFMLCanvas(wxWindow*, wxWindowID, const wxPoint&, const wxSize&, long int)':
main.cpp:62:46: error: 'GTK_PIZZA' was not declared in this scope
         GdkWindow* Win = GTK_PIZZA(m_wxwindow)->bin_window

[cheeseboy]

Fixed it myself:

#include <SFML/Graphics.hpp>

#include <wx/wx.h>

#ifdef __WXGTK__
    #include <gdk/gdkx.h>
    #include <gtk/gtk.h>
#endif


class wxSFMLCanvas : public wxControl, public sf::RenderWindow
{
public :

    wxSFMLCanvas(wxWindow* Parent = NULL, wxWindowID Id = -1, const wxPoint& Position = wxDefaultPosition,
                 const wxSize& Size = wxDefaultSize, long Style = 0);

    virtual ~wxSFMLCanvas() {};

private :

    DECLARE_EVENT_TABLE()

    virtual void OnUpdate() {};

    void OnIdle(wxIdleEvent&);

    void OnPaint(wxPaintEvent&);

    void OnEraseBackground(wxEraseEvent&);
};

BEGIN_EVENT_TABLE( wxSFMLCanvas, wxControl )
        EVT_IDLE( wxSFMLCanvas::OnIdle )
        EVT_PAINT( wxSFMLCanvas::OnPaint )
        EVT_ERASE_BACKGROUND( wxSFMLCanvas::OnEraseBackground )
END_EVENT_TABLE()

void wxSFMLCanvas::OnIdle(wxIdleEvent&)
{
    // Send a paint message when the control is idle, to ensure maximum framerate
    Refresh();
}

void wxSFMLCanvas::OnEraseBackground(wxEraseEvent&)
{
}

void wxSFMLCanvas::OnPaint(wxPaintEvent&)
{
    // Prepare the control to be repainted
    wxPaintDC Dc(this);

    // Let the derived class do its specific stuff
    OnUpdate();

    // Display on screen
    display();
}

wxSFMLCanvas::wxSFMLCanvas(wxWindow* Parent, wxWindowID Id, const wxPoint& Position, const wxSize& Size, long Style) :
wxControl(Parent, Id, Position, Size, Style)
{
    #ifdef __WXGTK__

        // GTK implementation requires to go deeper to find the
        // low-level X11 identifier of the widget
        gtk_widget_realize(m_wxwindow);
        gtk_widget_set_double_buffered(m_wxwindow, false);
        GdkWindow* Win = gtk_widget_get_window( (GtkWidget *) GetHandle() );
        XFlush(GDK_WINDOW_XDISPLAY(Win));
        sf::RenderWindow::create(GDK_WINDOW_XWINDOW(Win));

    #else

        // Tested under Windows XP only (should work with X11
        // and other Windows versions - no idea about MacOS)
        sf::RenderWindow::Create(GetHandle());

    #endif
}

class MyCanvas : public wxSFMLCanvas
{
public :

    MyCanvas(wxWindow*  Parent,
             wxWindowID Id,
             wxPoint   Position,
             wxSize    Size,
             long       Style = 0) :
    wxSFMLCanvas(Parent, Id, Position, Size, Style)
    {
        // Load an image and assign it to our sprite
        //myImage.LoadFromFile("sprite.png");
        //mySprite.SetImage(myImage);
    }

private :

    virtual void OnUpdate()
    {
        // Clear the view
        clear(sf::Color::Blue);

        // Display the sprite in the view
        //Draw(mySprite);
    }

    //sf::Image  myImage;
    //sf::Sprite mySprite;
};

class MyFrame : public wxFrame
{
public :

    MyFrame() :
    wxFrame(NULL, wxID_ANY, "SFML wxWidgets", wxDefaultPosition, wxSize(800, 600))
    {
        new MyCanvas(this, wxID_ANY, wxPoint(50, 50), wxSize(700, 500));
    }
};

class MyApplication : public wxApp
{
private :

    virtual bool OnInit()
    {
        // Create the main window
        MyFrame* MainFrame = new MyFrame;
        MainFrame->Show();

        return true;
    }
};

IMPLEMENT_APP(MyApplication);