//----------------------------------------------------------------------------------------
public void ShowItem(TimelineStreams item)
{
for (int i = 0; i < item.GetStreamCount(); ++i)
{
TimelineListItem li = new TimelineListItem();
li.Streams = item;
li.StreamIndex = i;
m_Items.Add(li);
}
int visible_count = Height / m_ItemHeight;
if (visible_count < m_Items.Count)
{
m_Scrollbar.Enabled = true;
m_Scrollbar.Minimum = 0;
m_Scrollbar.Maximum = m_Items.Count - visible_count - 1;
m_Scrollbar.Visible = true;
m_Scrollbar.Maximum = m_Scrollbar.Maximum + m_Scrollbar.LargeChange;
}
else
{
m_Scrollbar.Enabled = false;
m_Scrollbar.Visible = false;
}
UpdateVisibleList();
}
public void AddItem(TimelineStreams item)
{
m_Canvas.Clear();
m_ItemList.Clear();
if (item != null)
{
m_ItemList.ShowItem(item);
m_Canvas.ShowStream(item);
}
}
//添加时间轴对象，添加时会自动按照时间先后进行一次排序
public void ShowStream(TimelineStreams item)
{
//需要Item按照时间排序
m_Stream = item;
if (item.GetStreamCount() == 4)
{
m_ScaleStepIndex = 6;
m_GridScale = m_ScaleStep[m_ScaleStepIndex];
}
else
{
m_ScaleStepIndex = 10;
m_GridScale = m_ScaleStep[m_ScaleStepIndex];
}
PointF lt = ScreenToWorld(0, 0);
PointF rb = ScreenToWorld(Width, Height);
m_View = new WorldSpaceRect(lt.X, lt.Y, rb.X, rb.Y);
Invalidate();
}
public void RemoveItem(TimelineStreams item)
{
m_ItemList.Clear();
}
public TimelineListItem(TimelineStreams streams, int streamIndex)
{
StreamIndex = streamIndex;
Streams = streams;
}
//清空所有数据
public void Clear()
{
m_Stream = null;
Invalidate();
}
