// Token: 0x060072A9 RID: 29353 RVA: 0x0020EF7C File Offset: 0x0020D17C
internal override bool IsAtCaretUnitBoundary(ITextPointer position)
{
if (!this.IsValid)
{
throw new InvalidOperationException(SR.Get("TextViewInvalidLayout"));
}
ValidationHelper.VerifyPosition(this._textContainer, position, "position");
int lineFromPosition = TextParagraphView.GetLineFromPosition(this.Lines, position);
int startPositionCP = this.Lines[lineFromPosition].StartPositionCP;
return(this._owner.IsAtCaretUnitBoundary(position, startPositionCP, lineFromPosition));
}
// Token: 0x060072AB RID: 29355 RVA: 0x0020F058 File Offset: 0x0020D258
internal override ITextPointer GetBackspaceCaretUnitPosition(ITextPointer position)
{
if (!this.IsValid)
{
throw new InvalidOperationException(SR.Get("TextViewInvalidLayout"));
}
ValidationHelper.VerifyPosition(this._textContainer, position, "position");
int lineFromPosition = TextParagraphView.GetLineFromPosition(this.Lines, position);
int startPositionCP = this.Lines[lineFromPosition].StartPositionCP;
ITextPointer backspaceCaretUnitPosition = this._owner.GetBackspaceCaretUnitPosition(position, startPositionCP, lineFromPosition);
Invariant.Assert(backspaceCaretUnitPosition == null || backspaceCaretUnitPosition.HasValidLayout);
return(backspaceCaretUnitPosition);
}
// Token: 0x060072AC RID: 29356 RVA: 0x0020F0D0 File Offset: 0x0020D2D0
internal override TextSegment GetLineRange(ITextPointer position)
{
if (!this.IsValid)
{
throw new InvalidOperationException(SR.Get("TextViewInvalidLayout"));
}
if (position == null)
{
throw new ArgumentNullException("position");
}
ValidationHelper.VerifyPosition(this._textContainer, position, "position");
ReadOnlyCollection <LineResult> lines = this.Lines;
int lineFromPosition = TextParagraphView.GetLineFromPosition(lines, position);
return(new TextSegment(lines[lineFromPosition].StartPosition, lines[lineFromPosition].GetContentEndPosition(), true));
}
// Token: 0x060072A8 RID: 29352 RVA: 0x0020EE9C File Offset: 0x0020D09C
internal override ITextPointer GetPositionAtNextLine(ITextPointer position, double suggestedX, int count, out double newSuggestedX, out int linesMoved)
{
if (!this.IsValid)
{
throw new InvalidOperationException(SR.Get("TextViewInvalidLayout"));
}
if (position == null)
{
throw new ArgumentNullException("position");
}
ValidationHelper.VerifyPosition(this._textContainer, position, "position");
newSuggestedX = suggestedX;
linesMoved = 0;
if (count == 0)
{
return(position);
}
ReadOnlyCollection <LineResult> lines = this.Lines;
int num = TextParagraphView.GetLineFromPosition(lines, position);
if (num < 0 || num >= lines.Count)
{
throw new ArgumentOutOfRangeException("position");
}
int num2 = num;
num = Math.Max(0, num + count);
num = Math.Min(lines.Count - 1, num);
linesMoved = num - num2;
ITextPointer textPointer;
if (linesMoved == 0)
{
textPointer = position;
}
else if (!DoubleUtil.IsNaN(suggestedX))
{
textPointer = lines[num].GetTextPositionFromDistance(suggestedX);
}
else
{
textPointer = lines[num].StartPosition.CreatePointer(LogicalDirection.Forward);
}
Invariant.Assert(textPointer == null || textPointer.HasValidLayout);
return(textPointer);
}
