public int CompareEndpoints(TextPatternRangeEndpoint endpoint, ITextPatternRange targetRange, TextPatternRangeEndpoint targetEndpoint)
{
TextRangePattern targetRangePattern = targetRange as TextRangePattern;
if (targetRangePattern == null)
{
throw new ArgumentNullException();
}
if (targetRangePattern.accessible != accessible)
{
throw new ArgumentException();
}
int point = (endpoint == TextPatternRangeEndpoint.End
? endOffset : startOffset);
int targetPoint = (targetEndpoint ==
TextPatternRangeEndpoint.End)
? targetRangePattern.endOffset
: targetRangePattern.startOffset;
if (point < targetPoint)
{
return(-1);
}
if (point > targetPoint)
{
return(1);
}
return(0);
}
public void MoveEndpointByRange(TextPatternRangeEndpoint endpoint, ITextPatternRange targetRange, TextPatternRangeEndpoint targetEndpoint)
{
TextRangePattern target = targetRange as TextRangePattern;
if (target == null || target.accessible != accessible)
{
throw new ArgumentException();
}
int offset =
(targetEndpoint == TextPatternRangeEndpoint.Start
? target.startOffset
: target.endOffset);
if (endpoint == TextPatternRangeEndpoint.Start)
{
startOffset = offset;
if (endOffset < startOffset)
{
endOffset = startOffset;
}
}
else
{
endOffset = offset;
if (startOffset > endOffset)
{
startOffset = endOffset;
}
}
}
public ITextPatternRange [] GetSelection ()
{
int nSelections = text.NSelections;
TextRangePattern [] range = new TextRangePattern [nSelections];
for (int i = 0; i < nSelections; i++) {
int startOffset, endOffset;
text.GetSelection (i, out startOffset, out endOffset);
range [i] = new TextRangePattern (accessible, startOffset, endOffset);
}
return range;
}
public ITextPatternRange [] GetSelection()
{
int nSelections = text.NSelections;
TextRangePattern [] range = new TextRangePattern [nSelections];
for (int i = 0; i < nSelections; i++)
{
int startOffset, endOffset;
text.GetSelection(i, out startOffset, out endOffset);
range [i] = new TextRangePattern(accessible, startOffset, endOffset);
}
return(range);
}
public bool Compare(ITextPatternRange range)
{
TextRangePattern other = range as TextRangePattern;
if (other == null)
{
return(false);
}
if (other.accessible != accessible)
{
throw new ArgumentException("Comparing ranges from different elements");
}
return(other.startOffset == startOffset &&
other.endOffset == endOffset);
}