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/*
# Copyright (c) 2009 - OpenSLX Project, Computer Center University of Freiburg
#
# This program is free software distributed under the GPL version 2.
# See http://openslx.org/COPYING
#
# If you have any feedback please consult http://openslx.org/feedback and
# send your suggestions, praise, or complaints to feedback@openslx.org
#
# General information about OpenSLX can be found at http://openslx.org/
# --------------------------------------------------------------------------
# inputEvent.h:
# - Definition of an input event
# --------------------------------------------------------------------------
*/
#ifndef INPUTEVENT_H_
#define INPUTEVENT_H_
#include <cassert>
#include <QCoreApplication> // for translation
#include <QString>
#ifndef __linux
# error "This will only run on a Linux system. Porting is required for other systems."
#endif
struct QDataStream;
struct QString;
struct QMouseEvent;
struct QKeyEvent;
class InputEvent
{
private:
friend QDataStream& operator<<(QDataStream&, InputEvent const&);
friend QDataStream& operator>>(QDataStream&, InputEvent&);
friend void eventToString(InputEvent const& evt, QString& str);
friend bool eventFromString(QString const& str, InputEvent& evt);
quint16 _type;
quint16 _code;
quint32 _value;
// InputEvents are immutable. Prohibit assignment:
InputEvent& operator=(InputEvent const&); // There intentionally is no implementation.
public:
InputEvent(quint16 type, quint16 code, quint32 value = 0) : _type(type), _code(code), _value(value)
{
}
InputEvent(InputEvent const& other) : _type(other._type), _code(other._code), _value(other._value)
{
}
InputEvent()
{
}
static InputEvent mouseMotion(quint16 x, quint16 y)
{
return InputEvent(ET_POINTER, 0, ((quint32)x << 16) | y);
}
static quint16 mouseButtonsFromQt(int b);
static InputEvent mousePressRelease(int button, int buttons);
static InputEvent keyboardPress(int key, int mods);
static InputEvent keyboardRelease(int key, int mods);
static const quint16 ET_KEY = 0;
static const quint16 ET_BUTTON = 1;
static const quint16 ET_POINTER = 2;
static const quint16 ET_SPECIAL = 3;
static const quint16 EC_PRESS = 0;
static const quint16 EC_RELEASE = 1;
static const quint16 EC_REBOOT = 2;
static const quint16 EC_SYSRQ = 3;
static const quint16 EC_KILL_X = 4;
static const quint16 EC_SAY_HELLO = 5; //< for debugging purposes
typedef quint32 event_key;
typedef quint32 event_key_modifiers;
static const quint16 EB_LEFT = 1;
static const quint16 EB_MIDDLE = 2;
static const quint16 EB_RIGHT = 4;
static const quint32 MODIFIER_MASK =
0x7e000000;
quint16 type() const
{
return _type;
}
quint16 code() const
{
return _code;
}
quint32 value() const
{
return _value;
}
bool isKeyboard() const
{
return _type == ET_KEY;
}
bool isButton() const
{
return _type == ET_BUTTON;
}
bool isPointer() const
{
return _type == ET_POINTER;
}
bool isSpecial() const
{
return _type == ET_SPECIAL;
}
bool isPress() const
{
return _code == EC_PRESS;
}
bool isRelease() const
{
return _code == EC_RELEASE;
}
quint16 pressedButton() const
{
assert(_type == ET_BUTTON);
return (_value >> 16);
}
quint16 heldButtons() const
{
assert(_type == ET_BUTTON);
return (_value & 0xffff);
}
quint16 xCoord() const
{
assert(_type == ET_POINTER);
return (_value >> 16);
}
quint16 yCoord() const
{
assert(_type == ET_POINTER);
return (_value & 0xffff);
}
static QString typeToString(quint16 type)
{
switch(type)
{
case ET_BUTTON:
return "BUTTON";
case ET_KEY:
return "KEY";
case ET_POINTER:
return "POINTER";
case ET_SPECIAL:
return "SPECIAL";
default:
return QString::number(type, 16);
}
}
static QString codeToString(quint16 code)
{
switch(code)
{
case EC_PRESS:
return "PRESS";
case EC_RELEASE:
return "RELEASE";
case EC_SYSRQ:
return "SYSRQ";
case EC_REBOOT:
return "REBOOT";
case EC_KILL_X:
return "KILL_X";
default:
return QString::number(code, 16);
}
}
QString toString() const
{
return QString("%1:%2:%3").arg(typeToString(_type)).arg(codeToString(_code)).arg(_value, 8, 16, QLatin1Char('0'));
}
quint32 qtKeysym() const
{
return _value & ~MODIFIER_MASK;
}
quint32 qtModifiers() const
{
return _value & MODIFIER_MASK;
}
// We want to enable InputEvent as a translation context, so we fake the tr method:
static QString tr(const char* string)
{
return QCoreApplication::translate("InputEvent", string);
}
};
struct SpecialInputEventDescription
{
SpecialInputEventDescription(quint16 type, quint16 code, quint32 value, QString const& description_)
: type(type), code(code), value(value), description(description_)
{
}
quint16 type;
quint16 code;
quint32 value;
QString description;
InputEvent toEvent() const
{
return InputEvent(type, code, value);
}
static QList<SpecialInputEventDescription> describeSpecialEvents();
};
#endif /* INPUTEVENT_H_ */
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