checkSelection method
void
checkSelection(
- Offset localPosition, [
- bool hover = false
])
Implementation
void checkSelection(Offset localPosition, [bool hover = false]) {
final offset = toLocal(localPosition);
final selection = <Key>[];
for (final child in nodes) {
final rect = child.rect;
if (rect.contains(offset)) {
selection.add(child.key);
}
}
if (selection.isNotEmpty) {
if (shiftPressed) {
setSelection({selection.last, ..._selected.toSet()}, hover);
} else {
setSelection({selection.last}, hover);
}
} else {
deselectAll(hover);
}
}