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Add support for affine transformation matrix in wxGCDC

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Graphics renderers (exposed through wxGraphicsContext) support arbitrary affine transformations so it is possible to add support for affine transformations in wxGCDC by implementing all wxGCDC::*TransformMatrix() functions with calls to respective wxGraphicsContext functions.
Additionally, this implementation adds support for affine transformations in wxDC under wxGTK3 because in this port wxDC is equivalent to wxGCDC.
This commit is contained in:
Artur Wieczorek
2016-09-07 23:49:06 +02:00
parent 0bf38e11a3
commit 49000defcf
5 changed files with 63 additions and 9 deletions
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7
include/wx/dcgraph.h
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@@ -107,6 +107,13 @@ public:
virtual void* GetHandle() const wxOVERRIDE;
#if wxUSE_DC_TRANSFORM_MATRIX
virtual bool CanUseTransformMatrix() const wxOVERRIDE;
virtual bool SetTransformMatrix(const wxAffineMatrix2D& matrix) wxOVERRIDE;
virtual wxAffineMatrix2D GetTransformMatrix() const wxOVERRIDE;
virtual void ResetTransformMatrix() wxOVERRIDE;
#endif // wxUSE_DC_TRANSFORM_MATRIX
// the true implementations
virtual bool DoFloodFill(wxCoord x, wxCoord y, const wxColour& col,
wxFloodFillStyle style = wxFLOOD_SURFACE) wxOVERRIDE;