/// <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;
}
}
}
/// <summary>
/// Prepare the input paragraph for display.
/// </summary>
/// <param name="usePlaceholder">If true, will use the placeholder text. Else, will use the real input text.</param>
/// <param name="showCaret">If true, will also add the caret text when needed. If false, will not show caret.</param>
/// <returns>Processed text that will actually be displayed on screen.</returns>
protected string PrepareInputTextForDisplay(bool usePlaceholder, bool showCaret)
{
// set caret char
string caretShow = showCaret ? ((int)_caretAnim % 2 == 0) ? "|" : " " : string.Empty;
// set main text when hidden with password char
if (HideInputWithChar != null)
{
var hiddenVal = new string(HideInputWithChar.Value, _value.Length);
TextParagraph.Text = hiddenVal.Insert(_caret >= 0 ? _caret : hiddenVal.Length, caretShow);
}
// set main text for regular text input
else
{
TextParagraph.Text = _value.Insert(_caret >= 0 ? _caret : _value.Length, caretShow);
}
// update placeholder text
PlaceholderParagraph.Text = _placeholderText;
// get current paragraph and prepare to draw
Paragraph currParagraph = usePlaceholder ? PlaceholderParagraph : TextParagraph;
TextParagraph.UpdateDestinationRectsIfDirty();
// get text to display
return(currParagraph.GetProcessedText());
}
/// <summary>
/// Prepare the input paragraph for display.
/// </summary>
/// <param name="usePlaceholder">If true, will use the placeholder text. Else, will use the real input text.</param>
/// <param name="showCaret">If true, will also add the caret text when needed. If false, will not show caret.</param>
/// <returns>Processed text that will actually be displayed on screen.</returns>
protected string PrepareInputTextForDisplay(bool usePlaceholder, bool showCaret)
{
// set main paragraph text and add caret mark if needed
string caretShow = showCaret ? ((int)_caretAnim % 2 == 0) ? "|" : " " : string.Empty;
TextParagraph.Text = _value.Insert(_caret >= 0 ? _caret : _value.Length, caretShow);
// update placeholder text
PlaceholderParagraph.Text = _placeholderText;
// get current paragraph and prepare to draw
Paragraph currParagraph = usePlaceholder ? PlaceholderParagraph : TextParagraph;
TextParagraph.UpdateDestinationRectsIfDirty();
// get text to display
return(currParagraph.GetProcessedText());
}
/// <summary>
/// Prepare the input paragraph for display.
/// </summary>
/// <param name="usePlaceholder">If true, will use the placeholder text. Else, will use the real input text.</param>
/// <returns>Processed text that will actually be displayed on screen.</returns>
protected string PrepareInputTextForDisplay(bool usePlaceholder)
{
// set main text when hidden with password char
if (HideInputWithChar != null)
{
TextParagraph.Text = new string(HideInputWithChar.Value, _value.Length);
}
// set main text for regular text input
else
{
TextParagraph.Text = _value;
}
// update placeholder text
PlaceholderParagraph.Text = _placeholderText;
// get current paragraph and prepare to draw
Paragraph currParagraph = usePlaceholder ? PlaceholderParagraph : TextParagraph;
TextParagraph.UpdateDestinationRectsIfDirty();
// get text to display
return(currParagraph.GetProcessedText());
}
