internal bool DataRowIndexIsOutOfScreen(int dataRowIndex, out double viewportTop)
{
var y0 = AxisPanel.GetScreenTopRowIndex();
var yMax = AxisYConverter.ScreenToData(AxisPanel.ViewportHeight); // renderSize.Height ? 高度尚未经完整测试
int dataRowScreenIndex;
var outOfRange = (AxisControlExt.AxisOutOfRange(dataRowIndex, y0, yMax, out dataRowScreenIndex));
viewportTop = dataRowScreenIndex * Interval;
return(outOfRange);
}
private object PointoutBlock(Point e)
{
var y = e.Y; //- GetHeaderHeight();
//var y1 = AxisYConverter.ScreenToData(y);
//var y2 = (int)(y / Interval) + AxisYConverter.ScreenToData(0);
//if (y1 != y2)
// Debug.Print(string.Format("-------- ViewportToDataY called : y1 = {0} y2 = {1}", y1, y2));
// BMK Ambiguous getRowIndex
PointOutDataRowIndex = AxisYConverter.ScreenToData(y);
object fountBlock = null;
if (ItemsSource != null && 0 <= PointOutDataRowIndex && PointOutDataRowIndex < ItemsSource.Count)
{
var dateTime = AxisXConverter.ScreenToData(e.X); // current mouse moved postion
var positionY = y % Interval; // for Top useage
if (CellMode)
{
var date = dateTime.Date;
ItemsSource[PointOutDataRowIndex].SaftyInvoke <IEnumerable>(
o =>
{
fountBlock = o.OfType <ITerm>().FirstOrDefault(t =>
{
//using HrDate
var blockStart = BlockConverter.GetStart(t);
return((date == blockStart) && !TryPrevent(t));
});
});
if (RecursivelyPointout)
{
ItemsSource[PointOutDataRowIndex].SaftyInvoke <IDateIndexer <DateTerm> >(o => o[date].SaftyInvoke(b => fountBlock = b));
}
}
else
{
ItemsSource[PointOutDataRowIndex].SaftyInvoke <IEnumerable>(
o =>
{
fountBlock = o.OfType <ITerm>().LastOrDefault(block =>
{
var blockStart = BlockConverter.GetStart(block);
var blockTop = BlockConverter.GetTop(block);
return((blockStart <= dateTime && dateTime < block.End &&
blockTop <= positionY && (BlockConverter.GetHeight(block) + blockTop) >= positionY) && !TryPrevent(block));
});
});
}
}
if (fountBlock != null)
{
PointOutDataRowTop = (e.Y - e.Y % Interval) + BlockConverter.GetTop(fountBlock);
}
return(fountBlock);
}
