endDraw method
void
endDraw()
结束绘制
Implementation
void endDraw() {
_startPoint = null;
final int hisLen = _history.length;
if (hisLen > _currentIndex) {
_history.removeRange(_currentIndex, hisLen);
}
if (currentContent != null) {
_history.add(currentContent!);
_currentIndex = _history.length;
currentContent = null;
}
_refresh();
_refreshDeep();
notifyListeners();
}