void Quartz2DDrawingPanel::DrawImage(wxWindowDC& dc, wxImage* im)
{
    NSView* view = (NSView*)(GetWindow()->GetHandle());

    wxImagePixelData wx_data(*im);
    wxImagePixelData::Iterator p = wx_data.GetPixels();

    size_t w    = std::ceil(width  * scale);
    size_t h    = std::ceil(height * scale);
    size_t size = w * h * 3;

    UInt8 pixel_data[size];

    for(size_t i = 0; i < size; ++p) {
        pixel_data[i++] = p.Red();
        pixel_data[i++] = p.Green();
        pixel_data[i++] = p.Blue();
    }

    CGDataProviderRef provider = CGDataProviderCreateWithData(NULL, pixel_data, size, NULL);

    CGColorSpaceRef color_space = CGColorSpaceCreateDeviceRGB();

    CGImageRef image = CGImageCreate(
        w, h, 8, 24, w * 3, color_space,
        kCGBitmapByteOrderDefault,
        provider, NULL, true, kCGRenderingIntentDefault
    );

    // draw the image

    [view lockFocus];

    CGContextRef context = (CGContextRef)[[NSGraphicsContext currentContext] graphicsPort];

    CGContextDrawImage(context, view.bounds, image);

    [view unlockFocus];

    // and release everything

    CGDataProviderRelease(provider);
    CGColorSpaceRelease(color_space);
    CGImageRelease(image);
}