|
public GetNextInsertionPosition ( LogicalDirection direction ) : |
||
| direction | LogicalDirection | |
| return | ||
public static TextPointer RemoveHyperlink(TextPointer start)
{
var backspacePosition = start.GetNextInsertionPosition(LogicalDirection.Backward);
Hyperlink hyperlink;
if (backspacePosition == null || !IsHyperlinkBoundaryCrossed(start, backspacePosition, out hyperlink))
{
return null;
}
// Remember caretPosition with forward gravity. This is necessary since we are going to delete
// the hyperlink element preceeding caretPosition and after deletion current caretPosition
// (with backward gravity) will follow content preceeding the hyperlink.
// We want to remember content following the hyperlink to set new caret position at.
var newCaretPosition = start.GetPositionAtOffset(0, LogicalDirection.Forward);
// Deleting the hyperlink is done using logic below.
// 1. Copy its children Inline to a temporary array.
var hyperlinkChildren = hyperlink.Inlines;
var inlines = new Inline[hyperlinkChildren.Count];
hyperlinkChildren.CopyTo(inlines, 0);
// 2. Remove each child from parent hyperlink element and insert it after the hyperlink.
for (int i = inlines.Length - 1; i >= 0; i--)
{
hyperlinkChildren.Remove(inlines[i]);
hyperlink.SiblingInlines.InsertAfter(hyperlink, inlines[i]);
}
// 3. Apply hyperlink's local formatting properties to inlines (which are now outside hyperlink scope).
var localProperties = hyperlink.GetLocalValueEnumerator();
var inlineRange = new TextRange(inlines[0].ContentStart, inlines[inlines.Length - 1].ContentEnd);
while (localProperties.MoveNext())
{
var property = localProperties.Current;
var dp = property.Property;
object value = property.Value;
if (!dp.ReadOnly &&
dp != Inline.TextDecorationsProperty && // Ignore hyperlink defaults.
dp != TextElement.ForegroundProperty &&
dp != BaseUriHelper.BaseUriProperty &&
!IsHyperlinkProperty(dp))
{
inlineRange.ApplyPropertyValue(dp, value);
}
}
// 4. Delete the (empty) hyperlink element.
hyperlink.SiblingInlines.Remove(hyperlink);
return newCaretPosition;
}
// Token: 0x06003B89 RID: 15241 RVA: 0x0010F754 File Offset: 0x0010D954
private static TextPointer GetPositionAfterList(List list)
{
Invariant.Assert(list != null, "list cannot be null");
TextPointer textPointer = list.ElementEnd.GetInsertionPosition(LogicalDirection.Backward);
if (textPointer != null)
{
textPointer = textPointer.GetNextInsertionPosition(LogicalDirection.Forward);
}
if (textPointer == null)
{
textPointer = list.ElementEnd.TextContainer.End;
}
if (TextRangeEditTables.IsTableStructureCrossed(list.ElementEnd, textPointer))
{
textPointer = list.ContentEnd;
}
return(textPointer);
}
public void SetCell(BufferCell cell, TextPointer position, LogicalDirection direction)
{
TextRange range = null;
TextPointer positionPlus = position.GetNextInsertionPosition(LogicalDirection.Forward);
if (positionPlus != null)
{
range = new TextRange(position, positionPlus);
}
if (null == range || range.IsEmpty)
{
position = position.GetInsertionPosition(LogicalDirection.Forward);
if (position != null)
{
Run r = position.GetAdjacentElement(LogicalDirection.Forward) as Run;
if (null != r)
{
if (r.Text.Length > 0)
{
char[] chr = r.Text.ToCharArray();
chr[0] = cell.Character;
r.Text = chr.ToString();
}
else
{
r.Text = cell.Character.ToString();
}
}
else
{
r = position.GetAdjacentElement(LogicalDirection.Backward) as Run;
if (null != r
&& r.Background == BrushFromConsoleColor(cell.BackgroundColor)
&& r.Foreground == BrushFromConsoleColor(cell.ForegroundColor)
)
{
if (r.Text.Length > 0)
{
r.Text = r.Text + cell.Character;
}
else
{
r.Text = cell.Character.ToString();
}
}
else
{
r = new Run(cell.Character.ToString(), position);
}
}
r.Background = BrushFromConsoleColor(cell.BackgroundColor);
r.Foreground = BrushFromConsoleColor(cell.ForegroundColor);
//position = r.ElementStart;
}
}
else
{
range.Text = cell.Character.ToString();
range.ApplyPropertyValue(TextElement.BackgroundProperty, BrushFromConsoleColor(cell.BackgroundColor));
range.ApplyPropertyValue(TextElement.ForegroundProperty, BrushFromConsoleColor(cell.ForegroundColor));
}
}
internal static int GetColumnNumberFromSelection(TextPointer position)
{
if (position == null)
{
return 0;
}
int linesMoved;
TextPointer lineStartPosition = position.GetLineStartPosition(0, out linesMoved);
int columnNumber = 0;
do
{
columnNumber++;
position = position.GetNextInsertionPosition(LogicalDirection.Backward);
}
while (position != null && position.CompareTo(lineStartPosition) > 0);
return columnNumber;
}
public static string GetSentenceFromPosition(RichTextBox rtb, TextPointer position)
{
string sentence = string.Empty;
while (true)
{
string c = GetCharacterAtPosition(rtb, position);
sentence += c;
if (c.Equals(".")) break;
position = position.GetNextInsertionPosition(LogicalDirection.Forward);
if (position == null) break;
}
return (sentence);
}
