void CSobeyView::ComputerTimeLineLength(MaterialVector& timeLine)
{
m_timeLineLength = 0;
if (timeLine.empty())
return;
for (MaterialVector::iterator it = timeLine.begin(); it != timeLine.end(); ++it)
{
m_timeLineLength += abs(it->endTime - it->beginTime);
}
}
void CSobeyView::ComputerTimeLineRect(MaterialVector& timeLine)
{
ComputerTimeLineLength(timeLine);
m_timeLineRect.clear();
if (timeLine.empty())
return;
int top = 10;
int left = 10;
int width = 0;
int height = 50;
CRect windowRect;
GetWindowRect(&windowRect);
// 计算出窗体的大小作为比率
int base = windowRect.right - windowRect.left - 20;
for (MaterialVector::iterator it = timeLine.begin(); it != timeLine.end(); ++it)
{
left += width + 1;
// 素材的宽度等于素材时间长度和时间线总长的比值乘以窗体大小
width = abs(it->endTime - it->beginTime) * base / m_timeLineLength;
m_timeLineRect.push_back(CRect(left, top, left + width, top + height));
}
}