private void UpdateCaret()
{
Int32 textInsertionIndex = this.Position.TextInsertionIndex;
ITextLine textLineContaining = _textViewHelper.GetTextLineContaining(textInsertionIndex);
if (textLineContaining == null)
{
base.Height = 0;
if ((_editorView.TextLines.Count == 0) || (textInsertionIndex < _editorView.TextLines[0].LineSpan.Start))
{
Canvas.SetTop(this, 0);
}
else
{
Canvas.SetTop(this, _editorView.ViewportHeight);
}
Canvas.SetLeft(this, 0);
}
else
{
Canvas.SetTop(this, textLineContaining.VerticalOffset);
base.Height = textLineContaining.Height;
Genetibase.Windows.Controls.Editor.Text.View.TextBounds characterBounds = textLineContaining.GetCharacterBounds(this.Position.CharacterIndex);
if (!_overwriteMode)
{
if (this.Placement == CaretPlacement.LeftOfCharacter)
{
Canvas.SetLeft(this, characterBounds.Left);
}
else
{
Canvas.SetLeft(this, characterBounds.Right);
}
}
else if (characterBounds.Right > characterBounds.Left)
{
base.Width = characterBounds.Right - characterBounds.Left;
Canvas.SetLeft(this, characterBounds.Left);
}
else if (characterBounds.Left > characterBounds.Right)
{
base.Width = characterBounds.Left - characterBounds.Right;
Canvas.SetLeft(this, characterBounds.Right);
}
else
{
base.Width = _defaultOverwriteCaretWidth;
Canvas.SetLeft(this, characterBounds.Left);
}
_blinkAnimationClock.Controller.Begin();
}
base.InvalidateVisual();
}
/// <summary>
/// Indicates whether this instance and a specified Object are equal.
/// </summary>
/// <param name="obj">Another Object to compare to.</param>
/// <returns>
/// true if <paramref name="obj"/> and this instance are the same type and represent the same value; otherwise, false.
/// </returns>
public override Boolean Equals(Object obj)
{
if ((obj != null) && (obj is TextBounds))
{
TextBounds bounds = (TextBounds)obj;
if (((bounds.Left == this.Left) && (bounds.Width == this.Width)) && (bounds.Top == this.Top))
{
return(bounds.Height == this.Height);
}
}
return(false);
}