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.
53 lines
1.5 KiB
C++
53 lines
1.5 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: wx/wupdlock.h
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// Purpose: wxWindowUpdateLocker prevents window redrawing
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// Author: Vadim Zeitlin
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// Created: 2006-03-06
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// Copyright: (c) 2006 Vadim Zeitlin <vadim@wxwidgets.org>
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// Licence: wxWindows licence
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///////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_WUPDLOCK_H_
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#define _WX_WUPDLOCK_H_
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#include "wx/window.h"
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// ----------------------------------------------------------------------------
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// wxWindowUpdateLocker prevents updates to the window during its lifetime
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// ----------------------------------------------------------------------------
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class wxWindowUpdateLocker
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{
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public:
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// Prefer using the ctor below if possible, this ctor is only useful if
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// Lock() must be called only conditionally.
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wxWindowUpdateLocker() : m_win(nullptr) { }
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// create an object preventing updates of the given window (which must have
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// a lifetime at least as great as ours)
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explicit wxWindowUpdateLocker(wxWindow *win) : m_win(win) { win->Freeze(); }
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// May be called only for the object constructed using the default ctor.
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void Lock(wxWindow *win)
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{
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wxASSERT( !m_win );
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m_win = win;
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win->Freeze();
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}
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// dtor thaws the window to permit updates again
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~wxWindowUpdateLocker()
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{
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if ( m_win )
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m_win->Thaw();
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}
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private:
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wxWindow *m_win;
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wxDECLARE_NO_COPY_CLASS(wxWindowUpdateLocker);
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};
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#endif // _WX_WUPDLOCK_H_
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