/// <summary>
/// Creates a list of segments to split the line into
/// in order to draw selection boxes
/// </summary>
/// <returns></returns>
protected List <UITextEditLineSegment> CalculateSegments(UITextEditLine line)
{
var result = new List <UITextEditLineSegment>();
if (SelectionEnd != -1)
{
/** There is a selection **/
var start = SelectionStart == -1 ? m_SBuilder.Length : SelectionStart;
var end = SelectionEnd == -1 ? m_SBuilder.Length : SelectionEnd;
if (end < start)
{
var temp = start;
start = end;
end = temp;
}
var lineStart = line.StartIndex;
var lineEnd = lineStart + line.Text.Length;
/**
* Options:
* This line has no selection,
* Selection starts on this line
* Selection ends on this line
* The whole line is selected
*/
if (start >= lineStart && start < lineEnd)
{
/** Selection starts on this line, we need a prefix **/
var prefixEnd = start - lineStart;
if (prefixEnd != 0)
{
result.Add(new UITextEditLineSegment
{
Selected = false,
Text = line.Text.Substring(0, prefixEnd)
});
}
/** Up until the end **/
var selectionEnd = line.Text.Length;
if (end + 1 < lineEnd)
{
selectionEnd -= (lineEnd - end);
}
result.Add(new UITextEditLineSegment
{
Selected = true,
Text = line.Text.Substring(prefixEnd, selectionEnd - prefixEnd)
});
/** Suffix? **/
if (end + 1 < lineEnd)
{
result.Add(new UITextEditLineSegment
{
Selected = false,
Text = line.Text.Substring(selectionEnd)
});
}
}
else if (start < lineStart && end >= lineStart && end <= lineEnd)
{
/** Selection ends on this line **/
/** Up until the end **/
var selectionEnd = line.Text.Length;
if (end + 1 < lineEnd)
{
selectionEnd -= (lineEnd - end);
}
result.Add(new UITextEditLineSegment
{
Selected = true,
Text = line.Text.Substring(0, selectionEnd)
});
/** Suffix? **/
if (end + 1 < lineEnd)
{
result.Add(new UITextEditLineSegment
{
Selected = false,
Text = line.Text.Substring(selectionEnd)
});
}
}
else if (start < lineStart && end > lineEnd)
{
/** The whole line is selected **/
result.Add(new UITextEditLineSegment
{
Text = line.Text,
Selected = true
});
}
else
{
result.Add(new UITextEditLineSegment
{
Text = line.Text,
Selected = false
});
}
}
else
{
result.Add(new UITextEditLineSegment
{
Text = line.Text,
Selected = false
});
}
return(result);
}
/// <summary>
/// Creates a list of segments to split the line into
/// in order to draw selection boxes
/// </summary>
/// <returns></returns>
protected List <UITextEditLineSegment> CalculateSegments(UITextEditLine line, List <BBCodeCommand> bbcmds, ref int bbind)
{
var result = new List <UITextEditLineSegment>();
var points = new List <Tuple <int, BBCodeCommand> >();
var hasSelection = (SelectionEnd != -1);
var start = SelectionStart == -1 ? m_SBuilder.Length : SelectionStart;
var end = SelectionEnd == -1 ? m_SBuilder.Length : SelectionEnd;
if (start > end)
{
var temp = start;
start = end;
end = temp;
}
var lineStart = line.StartIndex;
var lineEnd = lineStart + line.Text.Length;
var selected = hasSelection && (start < lineStart && end >= lineStart);
var lastMod = 0;
while (true)
{
//check for selection first
var nextBB = (bbind == bbcmds.Count) ? lineEnd : bbcmds[bbind].Index;
if (hasSelection)
{
if (!selected)
{
//look for selection start. is it before our next bbcommand?
if (start >= lastMod + lineStart && start <= nextBB)
{
selected = true;
if (start != nextBB || nextBB == lineEnd)
{
//
result.Add(new UITextEditLineSegment
{
Selected = false, //prefix before we select the text
Text = line.Text.Substring(lastMod, (start - lineStart) - lastMod),
});
}
lastMod = start - lineStart;
}
}
if (selected)
{
//look for selection end. is it before our next bbcommand?
var selE = end - lineStart;
if (end >= lastMod + lineStart && end <= nextBB)
{
selected = false;
if (end != nextBB || nextBB == lineEnd)
{
result.Add(new UITextEditLineSegment
{
Selected = true, //the remainder of the selected string
Text = line.Text.Substring(lastMod, (end - lineStart) - lastMod),
});
}
lastMod = end - lineStart;
}
}
}
if (nextBB < lineEnd)
{
//this bbcmd happens on this line (or before we even drew anything (scroll))
//
if (bbcmds[bbind].Index - lineStart < 0)
{
result.Add(new UITextEditLineSegment
{
Selected = selected,
Text = "",
BBCatchup = true,
StartCommand = bbcmds[bbind++]
});
}
else
{
result.Add(new UITextEditLineSegment
{
Selected = selected,
Text = line.Text.Substring(lastMod, (bbcmds[bbind].Index - lineStart) - lastMod),
StartCommand = bbcmds[bbind++]
});
lastMod = (bbcmds[bbind - 1].Index - lineStart);
}
}
else
{
//remainder of the line
result.Add(new UITextEditLineSegment
{
Selected = selected,
Text = line.Text.Substring(lastMod, (lineEnd - lineStart) - lastMod),
});
break;
}
}
return(result);
}
/// <summary>
/// Creates a list of segments to split the line into
/// in order to draw selection boxes
/// </summary>
/// <returns></returns>
protected List<UITextEditLineSegment> CalculateSegments(UITextEditLine line)
{
var result = new List<UITextEditLineSegment>();
if (SelectionEnd != -1)
{
/** There is a selection **/
var start = SelectionStart == -1 ? m_SBuilder.Length : SelectionStart;
var end = SelectionEnd == -1 ? m_SBuilder.Length : SelectionEnd;
if (end < start)
{
var temp = start;
start = end;
end = temp;
}
var lineStart = line.StartIndex;
var lineEnd = lineStart + line.Text.Length;
/**
* Options:
* This line has no selection,
* Selection starts on this line
* Selection ends on this line
* The whole line is selected
*/
if (start >= lineStart && start < lineEnd)
{
/** Selection starts on this line, we need a prefix **/
var prefixEnd = start - lineStart;
if (prefixEnd != 0)
{
result.Add(new UITextEditLineSegment
{
Selected = false,
Text = line.Text.Substring(0, prefixEnd)
});
}
/** Up until the end **/
var selectionEnd = line.Text.Length;
if (end + 1 < lineEnd)
{
selectionEnd -= (lineEnd - end);
}
result.Add(new UITextEditLineSegment
{
Selected = true,
Text = line.Text.Substring(prefixEnd, selectionEnd - prefixEnd)
});
/** Suffix? **/
if (end + 1 < lineEnd)
{
result.Add(new UITextEditLineSegment
{
Selected = false,
Text = line.Text.Substring(selectionEnd)
});
}
}
else if (start < lineStart && end >= lineStart && end <= lineEnd)
{
/** Selection ends on this line **/
/** Up until the end **/
var selectionEnd = line.Text.Length;
if (end + 1 < lineEnd)
{
selectionEnd -= (lineEnd - end);
}
result.Add(new UITextEditLineSegment
{
Selected = true,
Text = line.Text.Substring(0, selectionEnd)
});
/** Suffix? **/
if (end + 1 < lineEnd)
{
result.Add(new UITextEditLineSegment
{
Selected = false,
Text = line.Text.Substring(selectionEnd)
});
}
}
else if (start < lineStart && end > lineEnd)
{
/** The whole line is selected **/
result.Add(new UITextEditLineSegment
{
Text = line.Text,
Selected = true
});
}
else
{
result.Add(new UITextEditLineSegment
{
Text = line.Text,
Selected = false
});
}
}
else
{
result.Add(new UITextEditLineSegment
{
Text = line.Text,
Selected = false
});
}
return result;
}
