4f4c5fcfdf
This is a combination of running clang-tidy with modernize-use-nullptr check for some ports (GTK, X11, OSX) and manual changes to the ports for which it couldn't be used easily (MSW, DFB) and also manually updating the docs. Also replace NULL with null or nullptr in the comments as this is more consistent with the use of nullptr in the code and makes it simpler to grep for the remaining occurrences of NULL itself. And also use null in the assert messages. Only a few occurrences of "NULL" are still left in non-C files, mostly corresponding to unclear comments or string output which it might not be safe to change.
108 lines
2.9 KiB
C++
108 lines
2.9 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: wx/msw/dcclient.h
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// Purpose: wxClientDC class
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// Author: Julian Smart
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// Modified by:
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// Created: 01/02/97
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// Copyright: (c) Julian Smart
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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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// ----------------------------------------------------------------------------
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// headers
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// ----------------------------------------------------------------------------
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#include "wx/dc.h"
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#include "wx/msw/dc.h"
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#include "wx/dcclient.h"
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class wxPaintDCInfo;
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// ----------------------------------------------------------------------------
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// DC classes
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// ----------------------------------------------------------------------------
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class WXDLLIMPEXP_CORE wxWindowDCImpl : public wxMSWDCImpl
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{
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public:
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// default ctor
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wxWindowDCImpl( wxDC *owner );
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// Create a DC corresponding to the whole window
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wxWindowDCImpl( wxDC *owner, wxWindow *win );
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virtual void DoGetSize(int *width, int *height) const override;
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protected:
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// initialize the newly created DC
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void InitDC();
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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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// default ctor
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wxClientDCImpl( wxDC *owner );
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// Create a DC corresponding to the client area of the window
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wxClientDCImpl( wxDC *owner, wxWindow *win );
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virtual ~wxClientDCImpl();
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virtual void DoGetSize(int *width, int *height) const override;
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protected:
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void InitDC();
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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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// Create a DC corresponding for painting the window in OnPaint()
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wxPaintDCImpl( wxDC *owner, wxWindow *win );
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virtual ~wxPaintDCImpl();
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// find the entry for this DC in the cache (keyed by the window)
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static WXHDC FindDCInCache(wxWindow* win);
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// This must be called by the code handling WM_PAINT to remove the DC
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// cached for this window for the duration of this message processing.
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static void EndPaint(wxWindow *win);
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protected:
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// Find the DC for this window in the cache, return nullptr if not found.
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static wxPaintDCInfo *FindInCache(wxWindow* win);
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wxDECLARE_CLASS(wxPaintDCImpl);
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wxDECLARE_NO_COPY_CLASS(wxPaintDCImpl);
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};
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/*
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* wxPaintDCEx
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* This class is used when an application sends an HDC with the WM_PAINT
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* message. It is used in HandlePaint and need not be used by an application.
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*/
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class WXDLLIMPEXP_CORE wxPaintDCEx : public wxPaintDC
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{
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public:
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wxPaintDCEx(wxWindow *canvas, WXHDC dc);
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wxDECLARE_CLASS(wxPaintDCEx);
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wxDECLARE_NO_COPY_CLASS(wxPaintDCEx);
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};
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#endif
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// _WX_DCCLIENT_H_
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