void ArcItem::updateTextPath() {
QPainterPath path;
if((_endItem && _startItem->collidesWithItem(_endItem)) ||
(!_endItem && _startItem->contains(_end)))
return;
QPointF start(0,0),
point = _end - pos();
//The arrow line and reverse liune
QLineF line(start, point);
QLineF revline(point, start);
//Make some text
if(this->weight() != 1){
QFont font;
font.setPointSizeF(6);
path.addText(QPointF(0,0), font, QString::number(this->weight()));
//Move it into some reasonable position
path.translate(-path.boundingRect().width()/2, -3);
QTransform rotation;
qreal angle = line.angle();
if(angle > 90 && angle < 270)
angle = 180 - angle;
else
angle = 360 - angle;
rotation.rotate(angle);
path = rotation.map(path);
path.translate(point/2);
}
_cachedTextPath = path;
}
void dispmsg(
union both_scr *posptr,
int msgno)
/**********************************************************************/
/* */
/* Display a message on the message line and optionally ring the */
/* bell. Error messages starting with ! ring the bell. */
/* */
/**********************************************************************/
/* */
/* This is ZEDIT source material. */
/* */
/* ZEDIT Source Materials are intellectual property */
/* (c) Copyright 1987,2001 by Clyde Thomas Zuber. */
/* */
/**********************************************************************/
{
extern unsigned int graphic;
extern char msgtext[MSGMAX][80];
int ln;
if (!posptr)
return;
if (msgtext[msgno][0] == '!')
#ifdef OS2
DosBeep(500, 75);
#else
printf("%c", BELL);
#endif
if (graphic & CGA)
ln = 0;
else
ln = 24;
dsp8lin(posptr, &msgtext[msgno][0], ln);
revline(posptr, ln);
if (graphic & XGA)
xga8514(posptr, ln, RDSPLIN);
} /* end dispmsg */
void ArcItem::updateArrowPath(){
QPainterPath path;
if((_endItem && _startItem->primaryShape().intersects(_endItem->primaryShape())) ||
(!_endItem && _startItem->primaryShape().contains(_end))){
_cachedArrowPath = path;
return;
}
QPointF start(0,0),
point = _end - pos();
//The arrow line and reverse liune
QLineF revline(point, start);
//Compute various points
QLineF s = revline.normalVector();
s.setAngle(revline.angle() - 45);
s.setLength(ARROW_SIZE);
QPointF side1 = s.p2();
s = revline.normalVector();
s.setAngle(revline.angle() + 45);
s.setLength(ARROW_SIZE);
QPointF side2 = s.p2();
s = QLineF(side1, side2);
QPointF head = point;
s.intersect(revline, &head);
path.moveTo(start);
path.lineTo(head);
path.lineTo(side1);
path.lineTo(point);
path.lineTo(side2);
path.lineTo(head);
_cachedArrowPath = path;
}
