109 lines
3.6 KiB
C
109 lines
3.6 KiB
C
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///////////////////////////////////////////////////////////////////////////////
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// Name: wx/power.h
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// Purpose: functions and classes for system power management
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// Author: Vadim Zeitlin
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// Modified by:
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// Created: 2006-05-27
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// Copyright: (c) 2006 Vadim Zeitlin <vadim@wxwindows.org>
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// Licence: wxWindows licence
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///////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_POWER_H_
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#define _WX_POWER_H_
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#include "wx/event.h"
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// ----------------------------------------------------------------------------
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// power management constants
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// ----------------------------------------------------------------------------
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enum wxPowerType
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{
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wxPOWER_SOCKET,
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wxPOWER_BATTERY,
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wxPOWER_UNKNOWN
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};
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enum wxBatteryState
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{
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wxBATTERY_NORMAL_STATE, // system is fully usable
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wxBATTERY_LOW_STATE, // start to worry
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wxBATTERY_CRITICAL_STATE, // save quickly
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wxBATTERY_SHUTDOWN_STATE, // too late
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wxBATTERY_UNKNOWN_STATE
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};
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// ----------------------------------------------------------------------------
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// wxPowerEvent is generated when the system online status changes
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// ----------------------------------------------------------------------------
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// currently the power events are only available under Windows, to avoid
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// compiling in the code for handling them which is never going to be invoked
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// under the other platforms, we define wxHAS_POWER_EVENTS symbol if this event
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// is available, it should be used to guard all code using wxPowerEvent
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#ifdef __WINDOWS__
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#define wxHAS_POWER_EVENTS
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class WXDLLIMPEXP_BASE wxPowerEvent : public wxEvent
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{
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public:
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wxPowerEvent() // just for use by wxRTTI
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: m_veto(false) { }
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wxPowerEvent(wxEventType evtType) : wxEvent(wxID_NONE, evtType)
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{
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m_veto = false;
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}
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// Veto the operation (only makes sense with EVT_POWER_SUSPENDING)
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void Veto() { m_veto = true; }
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bool IsVetoed() const { return m_veto; }
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// default copy ctor, assignment operator and dtor are ok
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virtual wxEvent *Clone() const { return new wxPowerEvent(*this); }
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private:
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bool m_veto;
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DECLARE_DYNAMIC_CLASS_NO_ASSIGN(wxPowerEvent)
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};
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wxDECLARE_EXPORTED_EVENT( WXDLLIMPEXP_BASE, wxEVT_POWER_SUSPENDING, wxPowerEvent );
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wxDECLARE_EXPORTED_EVENT( WXDLLIMPEXP_BASE, wxEVT_POWER_SUSPENDED, wxPowerEvent );
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wxDECLARE_EXPORTED_EVENT( WXDLLIMPEXP_BASE, wxEVT_POWER_SUSPEND_CANCEL, wxPowerEvent );
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wxDECLARE_EXPORTED_EVENT( WXDLLIMPEXP_BASE, wxEVT_POWER_RESUME, wxPowerEvent );
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typedef void (wxEvtHandler::*wxPowerEventFunction)(wxPowerEvent&);
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#define wxPowerEventHandler(func) \
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wxEVENT_HANDLER_CAST(wxPowerEventFunction, func)
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#define EVT_POWER_SUSPENDING(func) \
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wx__DECLARE_EVT0(wxEVT_POWER_SUSPENDING, wxPowerEventHandler(func))
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#define EVT_POWER_SUSPENDED(func) \
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wx__DECLARE_EVT0(wxEVT_POWER_SUSPENDED, wxPowerEventHandler(func))
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#define EVT_POWER_SUSPEND_CANCEL(func) \
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wx__DECLARE_EVT0(wxEVT_POWER_SUSPEND_CANCEL, wxPowerEventHandler(func))
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#define EVT_POWER_RESUME(func) \
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wx__DECLARE_EVT0(wxEVT_POWER_RESUME, wxPowerEventHandler(func))
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#else // no support for power events
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#undef wxHAS_POWER_EVENTS
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#endif // support for power events/no support
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// ----------------------------------------------------------------------------
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// power management functions
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// ----------------------------------------------------------------------------
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// return the current system power state: online or offline
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WXDLLIMPEXP_BASE wxPowerType wxGetPowerType();
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// return approximate battery state
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WXDLLIMPEXP_BASE wxBatteryState wxGetBatteryState();
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#endif // _WX_POWER_H_
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