104 lines
3 KiB
C++
104 lines
3 KiB
C++
///////////////////////////////////////////////////////////////////////////////
|
|
// Name: wx/evtloopsrc.h
|
|
// Purpose: declaration of wxEventLoopSource class
|
|
// Author: Vadim Zeitlin
|
|
// Created: 2009-10-21
|
|
// Copyright: (c) 2009 Vadim Zeitlin <vadim@wxwidgets.org>
|
|
// Licence: wxWindows licence
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
|
|
#ifndef _WX_EVTLOOPSRC_H_
|
|
#define _WX_EVTLOOPSRC_H_
|
|
|
|
// Include the header to get wxUSE_EVENTLOOP_SOURCE definition from it.
|
|
#include "wx/evtloop.h"
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxEventLoopSource: a source of events which may be added to wxEventLoop
|
|
// ----------------------------------------------------------------------------
|
|
|
|
// TODO: refactor wxSocket under Unix to reuse wxEventLoopSource instead of
|
|
// duplicating much of its logic
|
|
//
|
|
// TODO: freeze the API and document it
|
|
|
|
#if wxUSE_EVENTLOOP_SOURCE
|
|
|
|
#define wxTRACE_EVT_SOURCE "EventSource"
|
|
|
|
// handler used to process events on event loop sources
|
|
class wxEventLoopSourceHandler
|
|
{
|
|
public:
|
|
// called when descriptor is available for non-blocking read
|
|
virtual void OnReadWaiting() = 0;
|
|
|
|
// called when descriptor is available for non-blocking write
|
|
virtual void OnWriteWaiting() = 0;
|
|
|
|
// called when there is exception on descriptor
|
|
virtual void OnExceptionWaiting() = 0;
|
|
|
|
// virtual dtor for the base class
|
|
virtual ~wxEventLoopSourceHandler() { }
|
|
};
|
|
|
|
// flags describing which kind of IO events we're interested in
|
|
enum
|
|
{
|
|
wxEVENT_SOURCE_INPUT = 0x01,
|
|
wxEVENT_SOURCE_OUTPUT = 0x02,
|
|
wxEVENT_SOURCE_EXCEPTION = 0x04,
|
|
wxEVENT_SOURCE_ALL = wxEVENT_SOURCE_INPUT |
|
|
wxEVENT_SOURCE_OUTPUT |
|
|
wxEVENT_SOURCE_EXCEPTION
|
|
};
|
|
|
|
// wxEventLoopSource itself is an ABC and can't be created directly, currently
|
|
// the only way to create it is by using wxEventLoop::AddSourceForFD().
|
|
class wxEventLoopSource
|
|
{
|
|
public:
|
|
// dtor is pure virtual because it must be overridden to remove the source
|
|
// from the event loop monitoring it
|
|
virtual ~wxEventLoopSource() = 0;
|
|
|
|
void SetHandler(wxEventLoopSourceHandler* handler) { m_handler = handler; }
|
|
wxEventLoopSourceHandler* GetHandler() const { return m_handler; }
|
|
|
|
void SetFlags(int flags) { m_flags = flags; }
|
|
int GetFlags() const { return m_flags; }
|
|
|
|
protected:
|
|
// ctor is only used by the derived classes
|
|
wxEventLoopSource(wxEventLoopSourceHandler *handler, int flags)
|
|
: m_handler(handler),
|
|
m_flags(flags)
|
|
{
|
|
}
|
|
|
|
wxEventLoopSourceHandler* m_handler;
|
|
int m_flags;
|
|
|
|
wxDECLARE_NO_COPY_CLASS(wxEventLoopSource);
|
|
};
|
|
|
|
inline wxEventLoopSource::~wxEventLoopSource() { }
|
|
|
|
#if defined(__UNIX__)
|
|
#include "wx/unix/evtloopsrc.h"
|
|
#endif // __UNIX__
|
|
|
|
#if defined(__WXGTK20__)
|
|
#include "wx/gtk/evtloopsrc.h"
|
|
#endif
|
|
|
|
#if defined(__DARWIN__)
|
|
#include "wx/osx/evtloopsrc.h"
|
|
#endif
|
|
|
|
#endif // wxUSE_EVENTLOOP_SOURCE
|
|
|
|
#endif // _WX_EVTLOOPSRC_H_
|
|
|