qmouse_qws.cpp File Reference

#include "qmouse_qws.h"
#include "qwindowsystem_qws.h"
#include "qscreen_qws.h"
#include "qapplication.h"
#include "qtextstream.h"
#include "qfile.h"
#include "qdebug.h"

Go to the source code of this file.

Classes
class	QWSMouseHandlerPrivate

Functions
static int	ilog2 (quint32 n)

Function Documentation

ilog2()

static int ilog2 ( quint32  n )

static

Definition at line 491 of file qmouse_qws.cpp.

Referenced by QWSCalibratedMouseHandler::calibrate().

{
    int result = 0;

    if (n & 0xffff0000) {
        n >>= 16;
        result += 16;
    }
    if (n & 0xff00) {
        n >>= 8;
        result += 8;}
    if (n & 0xf0) {
        n >>= 4;
        result += 4;
    }
    if (n & 0xc) {
        n >>= 2;
        result += 2;
    }
    if (n & 0x2)
        result += 1;

    return result;
}