/// <summary>
/// Move scrollbar to show caret position.
/// </summary>
public void ScrollToCaret()
{
// skip if no scrollbar
if (_scrollbar == null)
{
return;
}
// make sure caret position is legal
if (_caret >= _value.Length)
{
_caret = -1;
}
// if caret is at end of text jump to it
if (_caret == -1)
{
_scrollbar.Value = (int)_scrollbar.Max;
}
// if not try to find the right pos
else
{
TextParagraph.Text = _value;
TextParagraph.CalcTextActualRectWithWrap();
string processedValueText = TextParagraph.GetProcessedText();
int currLine = processedValueText.Substring(0, _caret).Split('\n').Length;
_scrollbar.Value = currLine - 1;
}
}
/// <summary>
/// Move scrollbar to show caret position.
/// </summary>
public void ScrollToCaret()
{
// skip if no scrollbar
if (_scrollbar == null)
{
return;
}
// make sure caret position is legal
if (_caret >= _value.Length)
{
_caret = -1;
}
// if caret is at end of text jump to it
if (_caret == -1)
{
_scrollbar.Value = (int)_scrollbar.Max;
}
// if not try to find the right pos
else
{
// get how many lines can fit in the textbox
int linesFit = GetNumLinesFitInTheTextBox(TextParagraph);
TextParagraph.Text = _value;
TextParagraph.CalcTextActualRectWithWrap();
// get caret position
string processedText = TextParagraph.GetProcessedText();;
Point caretPosition = CalculateCaretPositionForMultiline(processedText, _caret);
// find current line
Vector2 charSize = TextParagraph.GetCharacterActualSize();
int currentLine = (int)(caretPosition.Y / charSize.Y);
// reposition the scrollbar
// if the carret is before the textInput dest rect
if (currentLine - _scrollbar.Value < 0)
{
_scrollbar.Value = currentLine;
}
// if the carret is after the textInput dest rect
else if (currentLine - _scrollbar.Value >= linesFit)
{
_scrollbar.Value = currentLine - linesFit + 1;
}
}
}
public void CalculateOffsets()
{
offsets.Clear();
if (_children.Count == 0)
{
return;
}
Paragraph curr = null;
Paragraph next = null;
int i = 0;
int j = 0;
while (curr == null && i < _children.Count)
{
curr = _children[i] as Paragraph;
i++;
}
if (curr != null)
{
offsets.Add(Vector2.Zero);
curr.StartingOffset = offsets[j];
curr.CalcTextActualRectWithWrap();
offsets.Add(curr.EndingOffset);
j++;
}
while (curr != null)
{
while (next == null && i < _children.Count) //skip over things until I put more types in here to flow around. Right now just fancy text.
{
next = _children[i] as Paragraph;
i++;
}
if (next != null)
{
next.StartingOffset = offsets[j];
next.CalcTextActualRectWithWrap();
offsets.Add(next.EndingOffset);
j++;
}
curr = next;
next = null;
}
}
