TRangeList Methods 

Description 

Add 

Adds new item. Returns index at which the item was inserted. 

Clear 

Removes all ranges. 

ClearFromPos 

Removes all ranges which ends after position APos. If CopyTo list is not nil, copies removed ranges to that list. 

ContentChanged 

Content has been changed, updates ranges upper Pos. Removes affected ranges, i.e. removes ranges that contain changed positions. 

Create 

Create new list. UnionSiblings specifies that intersected ranges should be replaced with the a range that is a union of intersected ranges. 

Delete 

Deletes ranges at specified index in the list. 

DeleteIntersected 

Deletes ranges that intersect the bounds, returns number of deleted items 

Destroy 

The destructor frees all resources allocated by the current object. 

IsGreater 

Compares two items. 

NextAt 

Returns range that contains specified position APos or placed after position APos. If there is no such range result value is nil. 

PriorAt 

Returns range that contains specified position APos or placed before position APos. If there is no such range result value is nil. 

RangeAt 

Returns range that contains specified position APos. If there is no range that contains APos, result value is nil. 

SplitRange 

Splits range at RangeIdx index on two ranges at specified SplitPos position. 

TryAdd 

Tries to add range if there are no intersections 

UnionRanges 

Union ranges with the [Index] and [Index + 1] returns new range index (or union result) 

Topic 

Description 

TRangeList Methods 

The methods of the TRangeList class are listed here. 

TRangeList Properties 

The properties of the TRangeList class are listed here. 

TRangeList Properties 

Description 

Count 

Number of ranges in the list. 

Items 

Returns ranges at the specified index.