void UpdateStatistics(DataView dv)
{
DataView curdv = ((DataViewDisplay)dataBook.CurrentPageWidget).View;
if (curdv != dv)
{
return;
}
StatisticsInfo si = (info[dv] as StatisticsInfo);
if (si.Changed == true)
{
ByteBuffer bb = dv.Buffer;
for (int i = 0; i < si.Freqs.Length; i++)
{
si.Freqs[i] = 0;
}
for (int i = 0; i < bb.Size; i++)
{
++si.Freqs[bb[i]];
}
si.Changed = false;
}
sdw.Update(si.Freqs);
}
void OnBufferChanged(DataView dv)
{
if (info.Contains(dv))
{
(info[dv] as StatisticsInfo).Changed = true;
}
else
{
StatisticsInfo si = new StatisticsInfo();
info[dv] = si;
}
UpdateStatistics(dv);
}
void OnSwitchPage(object o, SwitchPageArgs args)
{
DataView dv = ((DataViewDisplay)dataBook.GetNthPage((int)args.PageNum)).View;
if (dv == null)
{
return;
}
if (!info.Contains(dv))
{
info[dv] = new StatisticsInfo();
}
UpdateStatistics(dv);
}
void OnDataViewAdded(DataView dv)
{
dv.Buffer.Changed += new ByteBuffer.ChangedHandler(OnBufferContentsChanged);
dv.BufferChanged += new DataView.DataViewEventHandler(OnBufferChanged);
info[dv] = new StatisticsInfo();
}