int Timeline::AddItem(const wxDateTime& date) {
item new_item;
new_item.date = date;
if (m_items.empty()) new_item.ypos = 0;
else if (date.IsSameDate(m_items.back().date)) {
new_item.ypos = m_items.back().ypos + m_itemHeight;
}
else if (date.IsEarlierThan(m_items.back().date)) {
// Dates have to be sequential
new_item.date = m_items.back().date; // force to same date as previous
new_item.ypos = m_items.back().ypos + m_itemHeight;
}
else {
// Calculate number of days between dates
wxDateTime firstDay = m_items.back().date;
wxDateTime secondDay = date;
firstDay.ResetTime();
secondDay.ResetTime();
wxTimeSpan time = secondDay - firstDay;
int days = time.GetDays();
// BUG WORKAROUND: Because of shift to daylight saving time
// the count of days might be one less.
if (time.GetHours() % 24 == 23) ++days;
wxASSERT(days > 0);
new_item.ypos = m_items.back().ypos + (days * m_itemHeight);
}
m_items.push_back(new_item);
return new_item.ypos;
}
