void SourceItemDelegate::paint(QPainter *painter,
const QStyleOptionViewItem &option,
const QModelIndex &index) const
{
int column = index.column();
SourceItem* item = static_cast<SourceItem*>(index.internalPointer());
QColor color;
if ( !item->inside() || ((column==1) || (column==2)))
color = option.palette.color( QPalette::Button );
else if ((item->lineCall() || item->lineJump()) && column>2)
color = option.palette.color( QPalette::Midlight );
if (color.isValid())
_parent->model()->setData(index, color, Qt::BackgroundRole);
if(column==3)
paintArrows(painter, option, index);
else
QItemDelegate::paint(painter, option, index);
}
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();
}
