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Adjust scrolled contents only for wxPaintDC (drawing sample)

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Adjust scrolled contents for screen drawing directly in EVT_PAINT
handler instead of doing so conditionally for generic wxDC.
This also helps demonstrating if wxPaintDC transformations
are transferred properly to wxGCDC.
This commit is contained in:
Artur Wieczorek
2022-11-29 18:41:08 +01:00
parent 1baecca49a
commit 48d226bb84
1 changed files with 2 additions and 7 deletions
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samples/drawing/drawing.cpp
+2 -7
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@@ -1843,11 +1843,13 @@ void MyCanvas::OnPaint(wxPaintEvent &WXUNUSED(event))
if ( m_useBuffer )
{
wxBufferedPaintDC bpdc(this);
PrepareDC(bpdc); // Adjust scrolled contents.
Draw(bpdc);
}
else
{
wxPaintDC pdc(this);
PrepareDC(pdc); // Adjust scrolled contents.
Draw(pdc);
}
}
@@ -1891,13 +1893,6 @@ void MyCanvas::Draw(wxDC& pdc)
wxDC &dc = pdc ;
#endif
// Adjust scrolled contents for screen drawing operations only.
if ( wxDynamicCast(&pdc, wxBufferedPaintDC) ||
wxDynamicCast(&pdc, wxPaintDC) )
{
PrepareDC(dc);
}
m_owner->PrepareDC(dc);
dc.SetBackgroundMode( m_owner->m_backgroundMode );