double Snapper::snappedOffsetForLines(const SnapLineMap &snappingLineMap,
double value) const
{
QMultiMap<double, double> minimumSnappingLineMap;
SnapLineMapIterator snappingLineIterator(snappingLineMap);
while (snappingLineIterator.hasNext()) {
snappingLineIterator.next();
double snapLine = snappingLineIterator.key();
double offset = value - snapLine;
double distance = qAbs(offset);
if (distance < snappingDistance())
minimumSnappingLineMap.insert(distance, offset);
}
if (!minimumSnappingLineMap.isEmpty())
return minimumSnappingLineMap.begin().value();
return std::numeric_limits<double>::max();
}
double Snapper::snappedOffsetForOffsetLines(const SnapLineMap &snappingOffsetMap,
Qt::Orientation orientation,
double value,
double lowerLimit,
double upperLimit) const
{
QMultiMap<double, double> minimumSnappingLineMap;
SnapLineMapIterator snappingOffsetIterator(snappingOffsetMap);
while (snappingOffsetIterator.hasNext()) {
snappingOffsetIterator.next();
double snapLine = snappingOffsetIterator.key();
const QRectF &formEditorItemRect(snappingOffsetIterator.value().first);
double formEditorItemRectLowerLimit;
double formEditorItemRectUpperLimit;
if (orientation == Qt::Horizontal) {
formEditorItemRectLowerLimit = formEditorItemRect.left();
formEditorItemRectUpperLimit = formEditorItemRect.right();
} else {
formEditorItemRectLowerLimit = formEditorItemRect.top();
formEditorItemRectUpperLimit = formEditorItemRect.bottom();
}
double offset = value - snapLine;
double distance = qAbs(offset);
if (distance < snappingDistance() &&
!(lowerLimit > formEditorItemRectUpperLimit ||
upperLimit < formEditorItemRectLowerLimit)) {
minimumSnappingLineMap.insert(distance, offset);
}
}
if (!minimumSnappingLineMap.isEmpty()) {
return minimumSnappingLineMap.begin().value();
}
return std::numeric_limits<double>::max();
}
