Re: Cairo and wxWidgets Crash

Hi,


29-01-2014 10:51 tarihinde, WC Black yazdı:
> I just did. Although it appeared promising, I'm afraid that it did not
> solve the issue.
>
> [snip]


I'm using wxWidgets-3.0 with Cairo-1.12.16 via wxGraphicsContext 
(previously was using Cairo directly).

My OnPaint() function is below, maybe it helps you.

void pxCanvas::OnPaint(wxPaintEvent& event)
{
#if pxUSE_GDIPLUS
     wxBufferedPaintDC pdc(this, bufferBitmap_, wxBUFFER_CLIENT_AREA);
#else
     wxPaintDC pdc(this);
#endif
     // shifts the device origin so we don't have to worry
     // about the current scroll position ourselves
     // NOP! makes our drawings faulty!
     // PrepareDC(pdc);

     ComputeViewport();

     wxGCDC gdc;
     wxGraphicsRenderer* const renderer =
#ifdef __WXMSW__
         wxGraphicsRenderer::GetCairoRenderer();
#else
         wxGraphicsRenderer::GetDefaultRenderer();
#endif // __WXMSW__
     wxGraphicsContext* context = renderer->CreateContext(pdc);
     gdc.SetGraphicsContext(context);
     wxDC &dc = (wxDC&) gdc;

     // Erase the entire virtual area, not just the client area.
     // dc.SetPen(*wxTRANSPARENT_PEN);
     // dc.SetBrush(GetBackgroundColour());
     // dc.DrawRectangle(GetVirtualSize());

     pxCanvasRenderer impl(this);
     impl.Render(dc);
}


--
Regards,
Hakki Dogusan
http://www.dynaset.org/dogusanh


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