Ktam3874/pitx software guide – Kontron KTAM3874-pITX User Manual
Page 184
KTD-S0057-I
Page 180 Linux® Programming Examples (DebianTM)
KTAM3874/pITX Software Guide
QRectF boundingRect () const;
QPainterPath shape () const;
void paint (QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);
protected:
void advance (int step);
private:
qreal
angle;
qreal
speed;
qreal
mouseEyeDirection;
QColor
color;
};
#endif
File mouse.cpp (header with Qt
TM
license see 'main.cpp'):
#include <QtGui/QGraphicsScene>
#include <QtGui/QPainter>
#include <QtGui/QStyleOption>
#include <math.h>
#include "mouse.h"
static const double Pi = 3.14159265358979323846264338327950288419717;
static double TwoPi = 2.0 * Pi;
static qreal normalizeAngle (qreal angle)
{
while (angle < 0)
angle += TwoPi;
while (angle > TwoPi)
angle -= TwoPi;
return
angle;
}
Mouse::Mouse ()
: angle (0), speed (0), mouseEyeDirection (0), color (qrand () % 256, qrand () % 256, qrand () % 256)
{
setRotation (qrand () % (360 * 16));
}
QRectF Mouse::boundingRect () const
{
qreal adjust = 0.5;
return QRectF (-18 - adjust, -22 - adjust, 36 + adjust, 60 + adjust);
}