void SourceItemDelegate::paintArrows(QPainter *p,
const QStyleOptionViewItem &option,
const QModelIndex &index) const
{
QTreeWidget *lv = _parent;
if ( !lv ) return;
SourceView* sv = (SourceView*) lv;
SourceItem* item = static_cast<SourceItem*>(index.internalPointer());
const QRect& rect = option.rect;
int height = rect.height();
p->save();
drawBackground(p, option, index);
p->translate(rect.topLeft());
int marg = 1;
int yy = height/2, y1, y2;
QColor c;
int start = -1, end = -1;
TraceLineJump* lineJump = item->lineJump();
uint lineno = item->lineno();
TraceLineCall* lineCall = item->lineCall();
// draw line borders, detect start/stop of a line
for(int i=0; i< item->jumpCount(); i++) {
TraceLineJump* jump = item->jump(i);
if (jump == 0) continue;
y1 = 0;
y2 = height;
if (lineJump &&
(lineJump->lineTo() == jump->lineTo()) &&
(jump->lineFrom()->lineno() == lineno)) {
if (start<0) start = i;
if (lineJump == jump) {
if (jump->lineTo()->lineno() <= lineno)
y2 = yy;
else
y1 = yy;
}
}
else if (!lineJump && !lineCall &&
(jump->lineTo()->lineno() == lineno)) {
if (end<0) end = i;
if (jump->lineFrom()->lineno() < lineno)
y2 = yy;
else
y1 = yy;
}
c = jump->isCondJump() ? Qt::red : Qt::blue;
p->fillRect( marg + 6*i, y1, 4, y2, c);
p->setPen(c.light());
p->drawLine( marg + 6*i, y1, marg + 6*i, y2);
p->setPen(c.dark());
p->drawLine( marg + 6*i +3, y1, marg + 6*i +3, y2);
}
// draw start/stop horizontal line
int x, y = yy-2, w, h = 4;
if (start >= 0) {
c = item->jump(start)->isCondJump() ? Qt::red : Qt::blue;
x = marg + 6*start;
w = 6*(sv->arrowLevels() - start) + 10;
p->fillRect( x, y, w, h, c);
p->setPen(c.light());
p->drawLine(x, y, x+w-1, y);
p->drawLine(x, y, x, y+h-1);
p->setPen(c.dark());
p->drawLine(x+w-1, y, x+w-1, y+h-1);
p->drawLine(x+1, y+h-1, x+w-1, y+h-1);
}
if (end >= 0) {
c = item->jump(end)->isCondJump() ? Qt::red : Qt::blue;
x = marg + 6*end;
w = 6*(sv->arrowLevels() - end) + 10;
QPolygon a;
a.putPoints(0, 8, x,y+h,
x,y, x+w-8,y, x+w-8,y-2,
x+w,yy,
x+w-8,y+h+2, x+w-8,y+h,
x,y+h);
p->setBrush(c);
p->drawConvexPolygon(a);
p->setPen(c.light());
p->drawPolyline(a.constData(), 5);
p->setPen(c.dark());
p->drawPolyline(a.constData() + 4, 2);
p->setPen(c.light());
p->drawPolyline(a.constData() + 5, 2);
p->setPen(c.dark());
p->drawPolyline(a.constData() + 6, 2);
}
// draw inner vertical line for start/stop
// this overwrites borders of horizontal line
for(int i=0;i< item->jumpCount();i++) {
TraceLineJump* jump = item->jump(i);
if (jump == 0) continue;
c = jump->isCondJump() ? Qt::red : Qt::blue;
if (jump->lineFrom()->lineno() == lineno) {
bool drawUp = true;
if (jump->lineTo()->lineno() == lineno)
if (start<0) drawUp = false;
if (jump->lineTo()->lineno() > lineno) drawUp = false;
if (drawUp)
p->fillRect( marg + 6*i +1, 0, 2, yy, c);
else
p->fillRect( marg + 6*i +1, yy, 2, height-yy, c);
}
else if (jump->lineTo()->lineno() == lineno) {
if (end<0) end = i;
if (jump->lineFrom()->lineno() < lineno)
p->fillRect( marg + 6*i +1, 0, 2, yy, c);
else
p->fillRect( marg + 6*i +1, yy, 2, height-yy, c);
}
}
p->restore();
}
void SourceView::updateJumpArray(uint lineno, SourceItem* si,
bool ignoreFrom, bool ignoreTo)
{
TraceLineJump* lj;
uint lowLineno, highLineno;
int iEnd = -1, iStart = -1;
if (0) qDebug("updateJumpArray(line %d, jump to %s)",
lineno,
si->lineJump()
? si->lineJump()->lineTo()->name().ascii() : "?" );
lj=_lowList.current();
while(lj) {
lowLineno = lj->lineFrom()->lineno();
if (lj->lineTo()->lineno() < lowLineno)
lowLineno = lj->lineTo()->lineno();
if (lowLineno > lineno) break;
if (ignoreFrom && (lowLineno < lj->lineTo()->lineno())) break;
if (ignoreTo && (lowLineno < lj->lineFrom()->lineno())) break;
if (si->lineJump() && (lj != si->lineJump())) break;
int asize = (int)_jump.size();
#if 0
for(iStart=0;iStart<asize;iStart++)
if (_jump[iStart] &&
(_jump[iStart]->lineTo() == lj->lineTo())) break;
#else
iStart = asize;
#endif
if (iStart == asize) {
for(iStart=0;iStart<asize;iStart++)
if (_jump[iStart] == 0) break;
if (iStart== asize) {
asize++;
_jump.resize(asize);
if (asize > _arrowLevels) _arrowLevels = asize;
}
if (0) qDebug(" start %d (%s to %s)",
iStart,
lj->lineFrom()->name().ascii(),
lj->lineTo()->name().ascii());
_jump[iStart] = lj;
}
lj=_lowList.next();
}
si->setJumpArray(_jump);
lj=_highList.current();
while(lj) {
highLineno = lj->lineFrom()->lineno();
if (lj->lineTo()->lineno() > highLineno) {
highLineno = lj->lineTo()->lineno();
if (ignoreTo) break;
}
else if (ignoreFrom) break;
if (highLineno > lineno) break;
for(iEnd=0;iEnd< (int)_jump.size();iEnd++)
if (_jump[iEnd] == lj) break;
if (iEnd == (int)_jump.size()) {
qDebug("LineView: no jump start for end at %x ?", highLineno);
iEnd = -1;
}
lj=_highList.next();
if (0 && (iEnd>=0))
qDebug(" end %d (%s to %s)",
iEnd,
_jump[iEnd]->lineFrom()->name().ascii(),
_jump[iEnd]->lineTo()->name().ascii());
if (0 && lj) qDebug("next end: %s to %s",
lj->lineFrom()->name().ascii(),
lj->lineTo()->name().ascii());
if (highLineno > lineno)
break;
else {
if (iEnd>=0) _jump[iEnd] = 0;
iEnd = -1;
}
}
if (iEnd>=0) _jump[iEnd] = 0;
}