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Add option to drawing sample to toggle anti-aliasing of graphics renderer

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This commit is contained in:
Maarten Bent
2019-08-07 20:33:45 +02:00
parent 698a20e625
commit 97320c312e
1 changed files with 25 additions and 0 deletions
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25
samples/drawing/drawing.cpp
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@@ -124,6 +124,7 @@ public:
return m_renderer == wxGraphicsRenderer::GetDefaultRenderer(); return m_renderer == wxGraphicsRenderer::GetDefaultRenderer();
} }
wxGraphicsRenderer* GetRenderer() const { return m_renderer; } wxGraphicsRenderer* GetRenderer() const { return m_renderer; }
void EnableAntiAliasing(bool use) { m_useAntiAliasing = use; Refresh(); }
#endif // wxUSE_GRAPHICS_CONTEXT #endif // wxUSE_GRAPHICS_CONTEXT
void UseBuffer(bool use) { m_useBuffer = use; Refresh(); } void UseBuffer(bool use) { m_useBuffer = use; Refresh(); }
void ShowBoundingBox(bool show) { m_showBBox = show; Refresh(); } void ShowBoundingBox(bool show) { m_showBBox = show; Refresh(); }
@@ -172,6 +173,7 @@ private:
wxPoint m_currentpoint; wxPoint m_currentpoint;
#if wxUSE_GRAPHICS_CONTEXT #if wxUSE_GRAPHICS_CONTEXT
wxGraphicsRenderer* m_renderer; wxGraphicsRenderer* m_renderer;
bool m_useAntiAliasing;
#endif #endif
bool m_useBuffer; bool m_useBuffer;
bool m_showBBox; bool m_showBBox;
@@ -250,6 +252,15 @@ public:
} }
#endif #endif
#endif // __WXMSW__ #endif // __WXMSW__
void OnAntiAliasing(wxCommandEvent& event)
{
m_canvas->EnableAntiAliasing(event.IsChecked());
}
void OnAntiAliasingUpdateUI(wxUpdateUIEvent& event)
{
event.Enable(m_canvas->GetRenderer() != NULL);
}
#endif // wxUSE_GRAPHICS_CONTEXT #endif // wxUSE_GRAPHICS_CONTEXT
void OnBuffer(wxCommandEvent& event); void OnBuffer(wxCommandEvent& event);
@@ -335,6 +346,9 @@ enum
File_BBox, File_BBox,
File_Clip, File_Clip,
File_Buffer, File_Buffer,
#if wxUSE_GRAPHICS_CONTEXT
File_AntiAliasing,
#endif
File_Copy, File_Copy,
File_Save, File_Save,
@@ -519,6 +533,7 @@ MyCanvas::MyCanvas(MyFrame *parent)
m_rubberBand = false; m_rubberBand = false;
#if wxUSE_GRAPHICS_CONTEXT #if wxUSE_GRAPHICS_CONTEXT
m_renderer = NULL; m_renderer = NULL;
m_useAntiAliasing = true;
#endif #endif
m_useBuffer = false; m_useBuffer = false;
m_showBBox = false; m_showBBox = false;
@@ -1822,6 +1837,8 @@ void MyCanvas::Draw(wxDC& pdc)
return; return;
} }
context->SetAntialiasMode(m_useAntiAliasing ? wxANTIALIAS_DEFAULT : wxANTIALIAS_NONE);
gdc.SetBackground(GetBackgroundColour()); gdc.SetBackground(GetBackgroundColour());
gdc.SetGraphicsContext(context); gdc.SetGraphicsContext(context);
} }
@@ -2094,6 +2111,8 @@ wxBEGIN_EVENT_TABLE(MyFrame, wxFrame)
EVT_UPDATE_UI (File_GC_Direct2D, MyFrame::OnGraphicContextDirect2DUpdateUI) EVT_UPDATE_UI (File_GC_Direct2D, MyFrame::OnGraphicContextDirect2DUpdateUI)
#endif #endif
#endif // __WXMSW__ #endif // __WXMSW__
EVT_MENU (File_AntiAliasing, MyFrame::OnAntiAliasing)
EVT_UPDATE_UI (File_AntiAliasing, MyFrame::OnAntiAliasingUpdateUI)
#endif // wxUSE_GRAPHICS_CONTEXT #endif // wxUSE_GRAPHICS_CONTEXT
EVT_MENU (File_Buffer, MyFrame::OnBuffer) EVT_MENU (File_Buffer, MyFrame::OnBuffer)
@@ -2157,6 +2176,12 @@ MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size)
"Show extents used in drawing operations"); "Show extents used in drawing operations");
menuFile->AppendCheckItem(File_Clip, "&Clip\tCtrl-C", "Clip/unclip drawing"); menuFile->AppendCheckItem(File_Clip, "&Clip\tCtrl-C", "Clip/unclip drawing");
menuFile->AppendCheckItem(File_Buffer, "&Use wx&BufferedPaintDC\tCtrl-Z", "Buffer painting"); menuFile->AppendCheckItem(File_Buffer, "&Use wx&BufferedPaintDC\tCtrl-Z", "Buffer painting");
#if wxUSE_GRAPHICS_CONTEXT
menuFile->AppendCheckItem(File_AntiAliasing,
"&Anti-Aliasing in wxGraphicContext\tCtrl-Shift-A",
"Enable Anti-Aliasing in wxGraphicContext")
->Check();
#endif
menuFile->AppendSeparator(); menuFile->AppendSeparator();
#if wxUSE_METAFILE && defined(wxMETAFILE_IS_ENH) #if wxUSE_METAFILE && defined(wxMETAFILE_IS_ENH)
menuFile->Append(File_Copy, "Copy to clipboard"); menuFile->Append(File_Copy, "Copy to clipboard");