24fd54ed31
This function can be used to check if drawing on wxClientDC actually works. This has to be a run-time, rather than compile-time, check because in wxGTK3 this depends on the backend being used: wxClientDC only doesn't work with Wayland, but does work with X11 (and, less importantly, Win32) backend(s). Currently the wxWindow parameter of this function is not used but it could be useful in the future and it will be simpler to allow not specifying it (by defaulting it to nullptr) than to add it later, so it seems better to have it.
80 lines
2.1 KiB
C++
80 lines
2.1 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: wx/osx/dcclient.h
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// Purpose: wxClientDC, wxPaintDC and wxWindowDC classes
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// Author: Stefan Csomor
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// Created: 1998-01-01
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// Copyright: (c) Stefan Csomor
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_DCCLIENT_H_
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#define _WX_DCCLIENT_H_
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#include "wx/dc.h"
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#include "wx/dcgraph.h"
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//-----------------------------------------------------------------------------
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// classes
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//-----------------------------------------------------------------------------
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class WXDLLIMPEXP_FWD_CORE wxPaintDC;
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class WXDLLIMPEXP_FWD_CORE wxWindow;
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class WXDLLIMPEXP_CORE wxWindowDCImpl: public wxGCDCImpl
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{
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public:
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wxWindowDCImpl( wxDC *owner );
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wxWindowDCImpl( wxDC *owner, wxWindow *window );
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virtual ~wxWindowDCImpl();
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virtual void DoGetSize( int *width, int *height ) const override;
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virtual wxBitmap DoGetAsBitmap(const wxRect *subrect) const override;
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virtual void DestroyClippingRegion() override;
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protected:
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#if WXWIN_COMPATIBILITY_3_2
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wxDEPRECATED_MSG("Don't use OSXGetOrigin()")
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virtual wxPoint OSXGetOrigin() const override;
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#endif // WXWIN_COMPATIBILITY_3_2
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bool m_release;
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int m_width;
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int m_height;
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wxPoint m_origin;
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wxDECLARE_CLASS(wxWindowDCImpl);
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wxDECLARE_NO_COPY_CLASS(wxWindowDCImpl);
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};
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class WXDLLIMPEXP_CORE wxClientDCImpl: public wxWindowDCImpl
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{
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public:
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wxClientDCImpl( wxDC *owner );
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wxClientDCImpl( wxDC *owner, wxWindow *window );
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virtual ~wxClientDCImpl();
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static bool
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CanBeUsedForDrawing(const wxWindow* WXUNUSED(window)) { return false; }
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private:
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wxDECLARE_CLASS(wxClientDCImpl);
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wxDECLARE_NO_COPY_CLASS(wxClientDCImpl);
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};
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class WXDLLIMPEXP_CORE wxPaintDCImpl: public wxWindowDCImpl
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{
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public:
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wxPaintDCImpl( wxDC *owner );
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wxPaintDCImpl( wxDC *owner, wxWindow *win );
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virtual ~wxPaintDCImpl();
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protected:
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wxDECLARE_CLASS(wxPaintDCImpl);
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wxDECLARE_NO_COPY_CLASS(wxPaintDCImpl);
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};
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#endif
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// _WX_DCCLIENT_H_
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