Demonstrate drawing on wxGCDC in renderer sample
This is to demonstrate how wxRendererNative works with various wxGraphicsRenderers.
This commit is contained in:
Artur Wieczorek
parent
0939130158
commit
5cb255cc8d
@ -25,6 +25,7 @@
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#include "wx/frame.h"
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#include "wx/dc.h"
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#include "wx/dcclient.h"
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#include "wx/dcgraph.h"
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#include "wx/panel.h"
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#include "wx/menu.h"
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#include "wx/textdlg.h"
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@ -146,6 +147,22 @@ private:
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void OnToggleDrawFlag(wxCommandEvent& event, int flag);
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void OnChangeAlign(int align);
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#if wxUSE_GRAPHICS_CONTEXT
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void OnGraphicContextNone(wxCommandEvent& evt);
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void OnGraphicContextDefault(wxCommandEvent& evt);
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#if wxUSE_CAIRO
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void OnGraphicContextCairo(wxCommandEvent& evt);
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#endif // wxUSE_CAIRO
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#ifdef __WXMSW__
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#if wxUSE_GRAPHICS_GDIPLUS
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void OnGraphicContextGDIPlus(wxCommandEvent& evt);
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#endif
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#if wxUSE_GRAPHICS_DIRECT2D
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void OnGraphicContextDirect2D(wxCommandEvent& evt);
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#endif
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#endif // __WXMSW__
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#endif // wxUSE_GRAPHICS_CONTEXT
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class MyPanel *m_panel;
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// any class wishing to process wxWidgets events must use this macro
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@ -163,6 +180,9 @@ public:
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m_useIcon =
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m_useBitmap =
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m_useGeneric = false;
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#if wxUSE_GRAPHICS_CONTEXT
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m_renderer = NULL;
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#endif
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}
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int GetFlags() const { return m_flags; }
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@ -172,11 +192,28 @@ public:
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void SetUseIcon(bool useIcon) { m_useIcon = useIcon; }
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void SetUseBitmap(bool useBitmap) { m_useBitmap = useBitmap; }
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void SetUseGeneric(bool useGeneric) { m_useGeneric = useGeneric; }
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#if wxUSE_GRAPHICS_CONTEXT
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void UseGraphicRenderer(wxGraphicsRenderer* renderer);
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#endif
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private:
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void OnPaint(wxPaintEvent&)
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{
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wxPaintDC dc(this);
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wxPaintDC pdc(this);
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#if wxUSE_GRAPHICS_CONTEXT
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wxGCDC gdc;
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if ( m_renderer )
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{
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wxGraphicsContext* ctx = m_renderer->CreateContext(pdc);
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gdc.SetBackground(GetBackgroundColour());
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gdc.SetGraphicsContext(ctx);
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}
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wxDC& dc = m_renderer ? static_cast<wxDC&>(gdc) : pdc;
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#else
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wxDC& dc = pdc;
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#endif
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wxRendererNative& renderer = m_useGeneric ? wxRendererNative::GetGeneric()
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: wxRendererNative::Get();
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@ -325,10 +362,34 @@ private:
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bool m_useIcon,
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m_useBitmap,
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m_useGeneric;
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#if wxUSE_GRAPHICS_CONTEXT
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wxGraphicsRenderer* m_renderer;
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#endif
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wxDECLARE_EVENT_TABLE();
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};
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#if wxUSE_GRAPHICS_CONTEXT
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void MyPanel::UseGraphicRenderer(wxGraphicsRenderer* renderer)
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{
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m_renderer = renderer;
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if ( renderer )
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{
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int major, minor, micro;
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renderer->GetVersion(&major, &minor, µ);
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wxString str = wxString::Format("Graphics renderer: %s %i.%i.%i",
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renderer->GetName(), major, minor, micro);
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reinterpret_cast<wxFrame*>(GetParent())->GetStatusBar()->SetStatusText(str, 1);
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}
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else
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{
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reinterpret_cast<wxFrame*>(GetParent())->GetStatusBar()->SetStatusText(wxEmptyString, 1);
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}
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Refresh();
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}
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#endif // wxUSE_GRAPHICS_CONTEXT
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wxBEGIN_EVENT_TABLE(MyPanel, wxPanel)
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EVT_PAINT(MyPanel::OnPaint)
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wxEND_EVENT_TABLE()
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@ -362,6 +423,22 @@ enum
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Render_Unload,
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#endif // wxUSE_DYNLIB_CLASS
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#if wxUSE_GRAPHICS_CONTEXT
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DC_DC,
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DC_GC_Default,
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#if wxUSE_CAIRO
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DC_GC_Cairo,
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#endif // wxUSE_CAIRO
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#ifdef __WXMSW__
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#if wxUSE_GRAPHICS_GDIPLUS
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DC_GC_GDIPlus,
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#endif
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#if wxUSE_GRAPHICS_DIRECT2D
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DC_GC_Direct2D,
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#endif
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#endif // __WXMSW__
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#endif // wxUSE_GRAPHICS_CONTEXT
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// standard menu items
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Render_Quit = wxID_EXIT,
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@ -400,6 +477,22 @@ wxBEGIN_EVENT_TABLE(MyFrame, wxFrame)
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#endif // wxUSE_DYNLIB_CLASS
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EVT_MENU(Render_Quit, MyFrame::OnQuit)
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#if wxUSE_GRAPHICS_CONTEXT
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EVT_MENU(DC_DC, MyFrame::OnGraphicContextNone)
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EVT_MENU(DC_GC_Default, MyFrame::OnGraphicContextDefault)
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#if wxUSE_CAIRO
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EVT_MENU(DC_GC_Cairo, MyFrame::OnGraphicContextCairo)
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#endif // wxUSE_CAIRO
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#ifdef __WXMSW__
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#if wxUSE_GRAPHICS_GDIPLUS
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EVT_MENU(DC_GC_GDIPlus, MyFrame::OnGraphicContextGDIPlus)
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#endif
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#if wxUSE_GRAPHICS_DIRECT2D
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EVT_MENU(DC_GC_Direct2D, MyFrame::OnGraphicContextDirect2D)
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#endif
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#endif // __WXMSW__
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#endif // wxUSE_GRAPHICS_CONTEXT
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EVT_MENU(Render_About, MyFrame::OnAbout)
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wxEND_EVENT_TABLE()
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@ -486,6 +579,25 @@ MyFrame::MyFrame()
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#endif // wxUSE_DYNLIB_CLASS
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menuFile->Append(Render_Quit);
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#if wxUSE_GRAPHICS_CONTEXT
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wxMenu* menuDC = new wxMenu;
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// Number the different renderer choices consecutively, starting from 0.
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int accel = 0;
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menuDC->AppendRadioItem(DC_DC, wxString::Format("Use wx&DC\t%i", accel++));
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menuDC->AppendRadioItem(DC_GC_Default, wxString::Format("Use default wx&GraphicContext\t%i", accel++));
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#if wxUSE_CAIRO
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menuDC->AppendRadioItem(DC_GC_Cairo, wxString::Format("Use &Cairo\t%i", accel++));
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#endif // wxUSE_CAIRO
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#ifdef __WXMSW__
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#if wxUSE_GRAPHICS_GDIPLUS
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menuDC->AppendRadioItem(DC_GC_GDIPlus, wxString::Format("Use &GDI+\t%i", accel++));
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#endif
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#if wxUSE_GRAPHICS_DIRECT2D
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menuDC->AppendRadioItem(DC_GC_Direct2D,wxString::Format("Use &Direct2D\t%i", accel++));
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#endif
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#endif // __WXMSW__
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#endif // wxUSE_GRAPHICS_CONTEXT
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// the "About" item should be in the help menu
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wxMenu *helpMenu = new wxMenu;
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helpMenu->Append(Render_About);
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@ -493,6 +605,9 @@ MyFrame::MyFrame()
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// now append the freshly created menu to the menu bar...
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wxMenuBar *menuBar = new wxMenuBar();
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menuBar->Append(menuFile, "&File");
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#if wxUSE_GRAPHICS_CONTEXT
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menuBar->Append(menuDC, "&DC");
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#endif // wxUSE_GRAPHICS_CONTEXT
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menuBar->Append(helpMenu, "&Help");
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// ... and attach this menu bar to the frame
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@ -627,3 +742,35 @@ void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
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wxOK | wxICON_INFORMATION, this);
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}
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#if wxUSE_GRAPHICS_CONTEXT
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void MyFrame::OnGraphicContextNone(wxCommandEvent& WXUNUSED(evt))
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{
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m_panel->UseGraphicRenderer(NULL);
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}
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void MyFrame::OnGraphicContextDefault(wxCommandEvent& WXUNUSED(evt))
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{
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m_panel->UseGraphicRenderer(wxGraphicsRenderer::GetDefaultRenderer());
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}
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#if wxUSE_CAIRO
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void MyFrame::OnGraphicContextCairo(wxCommandEvent& WXUNUSED(evt))
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{
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m_panel->UseGraphicRenderer(wxGraphicsRenderer::GetCairoRenderer());
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}
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#endif // wxUSE_CAIRO
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#ifdef __WXMSW__
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#if wxUSE_GRAPHICS_GDIPLUS
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void MyFrame::OnGraphicContextGDIPlus(wxCommandEvent& WXUNUSED(evt))
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{
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m_panel->UseGraphicRenderer(wxGraphicsRenderer::GetGDIPlusRenderer());
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}
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#endif
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#if wxUSE_GRAPHICS_DIRECT2D
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void MyFrame::OnGraphicContextDirect2D(wxCommandEvent& WXUNUSED(evt))
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{
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m_panel->UseGraphicRenderer(wxGraphicsRenderer::GetDirect2DRenderer());
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}
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#endif
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#endif // __WXMSW__
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#endif // wxUSE_GRAPHICS_CONTEXT
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