void Region::Shape::dump() const
{
for (Shape::SpanIterator span = spans_begin(), end = spans_end(); span != end; ++span) {
printf("%6d: (", span->y);
for (Shape::SegmentIterator segment = segments_begin(span), end = segments_end(span); segment != end; ++segment)
printf("%d ", *segment);
printf(")\n");
}
printf("\n");
}
IntRect Region::Shape::bounds() const
{
if (isEmpty())
return IntRect();
SpanIterator span = spans_begin();
int minY = span->y;
SpanIterator lastSpan = spans_end() - 1;
int maxY = lastSpan->y;
int minX = std::numeric_limits<int>::max();
int maxX = std::numeric_limits<int>::min();
while (span != lastSpan) {
SegmentIterator firstSegment = segments_begin(span);
SegmentIterator lastSegment = segments_end(span) - 1;
if (firstSegment && lastSegment) {
ASSERT(firstSegment != lastSegment);
if (*firstSegment < minX)
minX = *firstSegment;
if (*lastSegment > maxX)
maxX = *lastSegment;
}
++span;
}
ASSERT(minX <= maxX);
ASSERT(minY <= maxY);
return IntRect(minX, minY, maxX - minX, maxY - minY);
}
static inline iterator_type begin(Geometry& geometry)
{
return segments_begin(geometry);
}
