public static ScreenItemInstance FindItem(
this IScreenItem item, IScreenLoc Start, IScreenLoc FindZeroLoc,
ScreenContent Content)
{
ScreenItemInstance findItem = null;
if (item.ItemType == ShowItemType.Section)
{
var sectionItem = item as IScreenSection;
findItem = sectionItem.FindItem(Start, FindZeroLoc, Content);
}
else
{
// adjust screen loc of the item by start pos of the section it is contained in.
var adjRow = Start.RowNum - 1;
var adjCol = Start.ColNum - 1;
var loc = new OneScreenLoc(
item.ScreenLoc.RowNum + adjRow, item.ScreenLoc.ColNum + adjCol);
var zeroLoc = loc.ToZeroRowCol();
var itemAtomic = item as IScreenAtomic;
var range = new ScreenLocRange(zeroLoc, itemAtomic.Length, Content.ScreenDim);
if (range.Contains(FindZeroLoc) == true)
findItem = new ScreenItemInstance(item, range.From);
}
return findItem;
}
public static ScreenLocRange GetLocRange(this IScreenItem item, ScreenDim Dim)
{
ScreenLocRange range = null;
if ( item is IScreenAtomic )
{
var atomicItem = item as IScreenAtomic;
range = new ScreenLocRange(item.ScreenLoc, atomicItem.Length, Dim);
}
else if (item is IScreenSection)
{
var sectionItem = item as IScreenSection;
range = sectionItem.ToRepeatRange();
}
return range;
}
public static ContentItemBase GetContentItem(this ScreenContent Content, IScreenLoc loc)
{
ContentItemBase foundItem = null;
foreach (var contentItem in Content.ContentItems())
{
var itemLoc = contentItem.RowCol as IScreenLoc;
var range = new ScreenLocRange(
itemLoc, contentItem.GetItemLength(Content), Content.ScreenDim);
if (range.Contains(loc))
{
foundItem = contentItem;
break;
}
}
return(foundItem);
}
public static ScreenAtomic FindFieldItem(
this IEnumerable <ScreenAtomic> List, IScreenLoc ScreenLoc, int Length)
{
ScreenAtomic found = null;
var dim = new ScreenDim(24, 80);
var range = new ScreenLocRange(ScreenLoc, Length, dim);
foreach (var item in List)
{
if (item.ItemType == ShowItemType.Field)
{
if (item.ScreenLocRange.CompletelyContains(range) == true)
{
found = item;
break;
}
}
}
return(found);
}
public static ScreenLocRange ToRange(this IScreenSection Section)
{
var range = new ScreenLocRange(Section.ScreenLoc);
foreach (var item in Section.Items)
{
ScreenLocRange r1 = null;
if (item is IScreenAtomic)
{
var atom = item as IScreenAtomic;
r1 = atom.ToRange();
}
else if (item is IScreenSection)
{
var sect = item as IScreenSection;
r1 = sect.ToRange();
}
var r2 = r1.ToAbsolute(Section.ScreenLoc);
range = range.Union(r2);
}
return(range);
}
public static ScreenLocRange ToRange(this IScreenAtomic item)
{
var range = new ScreenLocRange(item.ScreenLoc, item.EndLoc(), RangeForm.Linear);
return(range);
}
