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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 <string>
#include <sstream>
#include <stdint.h>
#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);
uint16_t type_;
uint16_t code_;
uint32_t value_;
// InputEvents are immutable. Prohibit assignment:
InputEvent& operator=(InputEvent const&); // There intentionally is no implementation.
public:
InputEvent(uint16_t type, uint16_t code, uint32_t value) : type_(type), code_(code), value_(value)
{
}
InputEvent()
{
}
static InputEvent mouseMotion(uint16_t x, uint16_t y)
{
return InputEvent(ET_POINTER, 0, ((uint32_t)x << 16) | y);
}
static uint16_t 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 uint16_t ET_KEY = 0;
static const uint16_t ET_BUTTON = 1;
static const uint16_t ET_POINTER = 2;
static const uint16_t ET_SPECIAL = 3;
static const uint16_t EC_PRESS = 0;
static const uint16_t EC_RELEASE = 1;
static const uint16_t EC_REBOOT = 2;
static const uint16_t EC_SYSRQ = 3;
static const uint16_t EC_KILL_X = 4;
static const uint16_t EC_SAY_HELLO = 5; //< for debugging purposes
typedef uint32_t event_key;
typedef uint32_t event_key_modifiers;
static const uint16_t EB_LEFT = 1;
static const uint16_t EB_MIDDLE = 2;
static const uint16_t EB_RIGHT = 4;
static const uint32_t MODIFIER_MASK =
0x7e000000;
uint16_t type() const
{
return type_;
}
uint16_t code() const
{
return code_;
}
uint32_t 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;
}
uint16_t pressedButton() const
{
assert(type_ == ET_BUTTON);
return (value_ >> 16);
}
uint16_t heldButtons() const
{
assert(type_ == ET_BUTTON);
return (value_ & 0xffff);
}
uint16_t xCoord() const
{
assert(type_ == ET_POINTER);
return (value_ >> 16);
}
uint16_t yCoord() const
{
assert(type_ == ET_POINTER);
return (value_ & 0xffff);
}
static std::string typeToString(uint16_t type)
{
switch(type)
{
case ET_BUTTON:
return "BUTTON";
case ET_KEY:
return "KEY";
case ET_POINTER:
return "POINTER";
case ET_SPECIAL:
return "SPECIAL";
default:
std::ostringstream s;
s << std::hex << type;
return s.str();
}
}
static std::string codeToString(uint16_t 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:
std::ostringstream s;
s << std::hex << code;
return s.str();
}
}
std::string toString() const
{
std::ostringstream s;
s << typeToString(type_) << ':' << codeToString(code_) << ':' << std::hex << value_;
return s.str();
}
uint32_t qt_keysym() const
{
return value_ & ~MODIFIER_MASK;
}
uint32_t qt_modifiers() const
{
return value_ & MODIFIER_MASK;
}
};
#endif /* INPUTEVENT_H_ */
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