5cd9986613
Currently wxEventLoopSource can't be created directly and can only be used to monitor file descriptors so reduce the API to just wxEventLoop::AddSourceForFD() and remove AddSource(), RemoveSource() and RemoveAllSources() which couldn't be implemented for all ports. This makes the code much simpler without any loss of functionality. Make wxEventLoopSource responsible for removing itself from the event loop when it is deleted. This allows to remove IsOk() and Invalidate() methods making the code simpler and gets rid of various sets/maps which were used before. This also allows to support event loop sources in Carbon as well: wxOSX/Carbon now compiles and works with wxUSE_FSWATCHER==1. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@62475 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
100 lines
3.0 KiB
C++
100 lines
3.0 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: wx/evtloopsrc.h
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// Purpose: declaration of wxEventLoopSource class
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// Author: Vadim Zeitlin
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// Created: 2009-10-21
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// RCS-ID: $Id: wxhead.h,v 1.11 2009-06-29 10:23:04 zeitlin Exp $
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// Copyright: (c) 2009 Vadim Zeitlin <vadim@wxwidgets.org>
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// Licence: wxWindows licence
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///////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_EVTLOOPSRC_H_
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#define _WX_EVTLOOPSRC_H_
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// ----------------------------------------------------------------------------
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// wxEventLoopSource: a source of events which may be added to wxEventLoop
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// ----------------------------------------------------------------------------
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// TODO: refactor wxSocket under Unix to reuse wxEventLoopSource instead of
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// duplicating much of its logic
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//
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// TODO: freeze the API and document it
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#if wxUSE_EVENTLOOP_SOURCE
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#define wxTRACE_EVT_SOURCE "EventSource"
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// handler used to process events on event loop sources
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class wxEventLoopSourceHandler
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{
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public:
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// called when descriptor is available for non-blocking read
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virtual void OnReadWaiting() = 0;
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// called when descriptor is available for non-blocking write
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virtual void OnWriteWaiting() = 0;
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// called when there is exception on descriptor
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virtual void OnExceptionWaiting() = 0;
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// virtual dtor for the base class
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virtual ~wxEventLoopSourceHandler() { }
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};
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// flags describing which kind of IO events we're interested in
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enum
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{
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wxEVENT_SOURCE_INPUT = 0x01,
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wxEVENT_SOURCE_OUTPUT = 0x02,
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wxEVENT_SOURCE_EXCEPTION = 0x04,
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wxEVENT_SOURCE_ALL = wxEVENT_SOURCE_INPUT |
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wxEVENT_SOURCE_OUTPUT |
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wxEVENT_SOURCE_EXCEPTION,
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};
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// wxEventLoopSource itself is an ABC and can't be created directly, currently
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// the only way to create it is by using wxEventLoop::AddSourceForFD().
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class wxEventLoopSource
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{
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public:
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// dtor is pure virtual because it must be overridden to remove the source
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// from the event loop monitoring it
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virtual ~wxEventLoopSource() = 0;
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void SetHandler(wxEventLoopSourceHandler* handler) { m_handler = handler; }
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wxEventLoopSourceHandler* GetHandler() const { return m_handler; }
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void SetFlags(int flags) { m_flags = flags; }
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int GetFlags() const { return m_flags; }
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protected:
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// ctor is only used by the derived classes
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wxEventLoopSource(wxEventLoopSourceHandler *handler, int flags)
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: m_handler(handler),
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m_flags(flags)
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{
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}
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wxEventLoopSourceHandler* m_handler;
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int m_flags;
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wxDECLARE_NO_COPY_CLASS(wxEventLoopSource);
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};
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inline wxEventLoopSource::~wxEventLoopSource() { }
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#if defined(__UNIX__)
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#include "wx/unix/evtloopsrc.h"
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#endif // __UNIX__
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#if defined(__WXGTK20__)
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#include "wx/gtk/evtloopsrc.h"
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#elif defined(__WXOSX__)
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#include "wx/osx/evtloopsrc.h"
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#endif // platform
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#endif // wxUSE_EVENTLOOP_SOURCE
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#endif // _WX_EVTLOOPSRC_H_
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