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.
63 lines
1.5 KiB
C++
63 lines
1.5 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: wx/qt/dcclient.h
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// Author: Peter Most, Javier Torres, Mariano Reingart
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// Copyright: (c) 2010 wxWidgets dev team
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_QT_DCCLIENT_H_
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#define _WX_QT_DCCLIENT_H_
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#include "wx/qt/dc.h"
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#include <memory>
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class QPicture;
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class WXDLLIMPEXP_CORE wxWindowDCImpl : public wxQtDCImpl
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{
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public:
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wxWindowDCImpl( wxDC *owner );
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wxWindowDCImpl( wxDC *owner, wxWindow *win );
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~wxWindowDCImpl();
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protected:
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std::unique_ptr<QPicture> m_pict;
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// @true if m_qtPainter is owned by the window, @false otherwise (default).
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bool m_isWindowPainter = false;
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private:
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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 *win );
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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 wxClientDCImpl
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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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private:
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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 // _WX_QT_DCCLIENT_H_
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