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Fixed reporting transformation settings for wxGraphicsContext with Cairo renderer.

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When wxGraphicsContext is created from "native" Cairo context (cairo_t*) then transformation settings applied initially to the underlying source Cairo context need to be stored (in a dedicated variable) to make possible determining what transformations were applied to wxGC instance since its creation. Only these explicitly applied transformations are reported by GetTransform().
This commit is contained in:
Artur Wieczorek
2016-04-14 20:49:07 +02:00
parent a1a3f7309b
commit a662e306be
1 changed files with 4 additions and 1 deletions
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5
src/generic/graphicc.cpp
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@@ -2099,8 +2099,11 @@ wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, cairo_t *context )
m_mswStateSavedDC = 0; m_mswStateSavedDC = 0;
#endif // __WXMSW__ #endif // __WXMSW__
Init( context ); Init( context );
m_width = m_width = 0;
m_height = 0; m_height = 0;
// Store transformation settings of the underlying source context.
if ( m_context )
cairo_get_matrix(m_context, &m_internalTransform);
} }
wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, wxWindow *window) wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, wxWindow *window)