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89 lines
1.9 KiB
C++
89 lines
1.9 KiB
C++
/*
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* \brief Input event structure
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* \author Norman Feske
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* \date 2006-08-16
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*/
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/*
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* Copyright (C) 2006-2013 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU General Public License version 2.
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*/
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#ifndef _INCLUDE__INPUT__EVENT_H_
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#define _INCLUDE__INPUT__EVENT_H_
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#include <input/keycodes.h>
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namespace Input { class Event; }
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class Input::Event
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{
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public:
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enum Type { INVALID, MOTION, PRESS, RELEASE, WHEEL, FOCUS, LEAVE, TOUCH };
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private:
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Type _type;
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/*
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* For PRESS and RELEASE events, '_code' contains the key code.
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* For FOCUS events, '_code' is set to 1 (focus) or 0 (unfocus).
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*/
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int _code;
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/*
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* Absolute pointer position coordinates
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*/
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int _ax, _ay;
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/*
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* Relative pointer motion vector
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*/
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int _rx, _ry;
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public:
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/**
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* Constructors
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*/
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Event():
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_type(INVALID), _code(0), _ax(0), _ay(0), _rx(0), _ry(0) { }
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Event(Type type, int code, int ax, int ay, int rx, int ry):
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_type(type), _code(code),
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_ax(ax), _ay(ay), _rx(rx), _ry(ry) { }
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/**
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* Accessors
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*/
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Type type() const { return _type; }
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int code() const { return _code; }
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int ax() const { return _ax; }
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int ay() const { return _ay; }
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int rx() const { return _rx; }
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int ry() const { return _ry; }
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/**
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* Return key code for press/release events
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*/
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Keycode keycode() const
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{
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return _type == PRESS || _type == RELEASE ? (Keycode)_code : KEY_UNKNOWN;
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}
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bool is_absolute_motion() const { return _type == MOTION && !_rx && !_ry; }
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bool is_relative_motion() const { return _type == MOTION && (_rx || _ry); }
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bool is_touch_release() const { return _type == TOUCH && (_rx == -1) && (_ry == -1); }
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static Event create_touch_event(int ax, int ay, int id, bool last = false)
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{
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return Event(Type::TOUCH, id, ax, ay, last ? -1 : 0, last ? -1 : 0);
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}
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};
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#endif /* _INCLUDE__INPUT__EVENT_H_ */
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