| static private DeleteSelection ( TextArea textArea ) : void | ||
| textArea | TextArea | |
| return | void | |
public override void Execute(TextArea textArea)
{
if (textArea.SelectionManager.HasSomethingSelected)
{
Delete.DeleteSelection(textArea);
return;
}
if (textArea.Caret.Offset > 0 && !textArea.IsReadOnly(textArea.Caret.Offset - 1))
{
textArea.BeginUpdate();
int lineNumberForOffset = textArea.Document.GetLineNumberForOffset(textArea.Caret.Offset);
int offset = textArea.Document.GetLineSegment(lineNumberForOffset).Offset;
if (offset != textArea.Caret.Offset)
{
int num = textArea.Caret.Offset - 1;
textArea.Caret.Position = textArea.Document.OffsetToPosition(num);
textArea.Document.Remove(num, 1);
textArea.Document.RequestUpdate(new TextAreaUpdate(TextAreaUpdateType.PositionToLineEnd, new TextLocation(textArea.Caret.Offset - textArea.Document.GetLineSegment(lineNumberForOffset).Offset, lineNumberForOffset)));
}
else
{
LineSegment lineSegment = textArea.Document.GetLineSegment(lineNumberForOffset - 1);
int totalNumberOfLines = textArea.Document.TotalNumberOfLines;
int offset1 = lineSegment.Offset + lineSegment.Length;
int length = lineSegment.Length;
textArea.Document.Remove(offset1, offset - offset1);
textArea.Caret.Position = new TextLocation(length, lineNumberForOffset - 1);
textArea.Document.RequestUpdate(new TextAreaUpdate(TextAreaUpdateType.PositionToEnd, new TextLocation(0, lineNumberForOffset - 1)));
}
textArea.EndUpdate();
}
}
public override void Execute(TextArea textArea)
{
if (textArea.SelectionManager.HasSomethingSelected)
{
Delete.DeleteSelection(textArea);
return;
}
textArea.BeginUpdate();
LineSegment lineSegmentForOffset = textArea.Document.GetLineSegmentForOffset(textArea.Caret.Offset);
if (textArea.Caret.Offset != lineSegmentForOffset.Offset + lineSegmentForOffset.Length)
{
int num = TextUtilities.FindNextWordStart(textArea.Document, textArea.Caret.Offset);
if (num > textArea.Caret.Offset && !textArea.IsReadOnly(textArea.Caret.Offset, num - textArea.Caret.Offset))
{
textArea.Document.Remove(textArea.Caret.Offset, num - textArea.Caret.Offset);
}
}
else
{
base.Execute(textArea);
}
textArea.UpdateMatchingBracket();
textArea.EndUpdate();
textArea.Document.RequestUpdate(new TextAreaUpdate(TextAreaUpdateType.PositionToEnd, new TextLocation(0, textArea.Document.GetLineNumberForOffset(textArea.Caret.Offset))));
textArea.Document.CommitUpdate();
}
public override void Execute(TextArea textArea)
{
if (textArea.SelectionManager.HasSomethingSelected)
{
Delete.DeleteSelection(textArea);
return;
}
if (textArea.IsReadOnly(textArea.Caret.Offset))
{
return;
}
if (textArea.Caret.Offset < textArea.Document.TextLength)
{
textArea.BeginUpdate();
int lineNumberForOffset = textArea.Document.GetLineNumberForOffset(textArea.Caret.Offset);
LineSegment lineSegment = textArea.Document.GetLineSegment(lineNumberForOffset);
if (lineSegment.Offset + lineSegment.Length != textArea.Caret.Offset)
{
textArea.Document.Remove(textArea.Caret.Offset, 1);
}
else if (lineNumberForOffset + 1 < textArea.Document.TotalNumberOfLines)
{
LineSegment lineSegment1 = textArea.Document.GetLineSegment(lineNumberForOffset + 1);
textArea.Document.Remove(textArea.Caret.Offset, lineSegment1.Offset - textArea.Caret.Offset);
textArea.Document.RequestUpdate(new TextAreaUpdate(TextAreaUpdateType.PositionToEnd, new TextLocation(0, lineNumberForOffset)));
}
textArea.UpdateMatchingBracket();
textArea.EndUpdate();
}
}
/// <remarks>
/// Executes this edit action
/// </remarks>
/// <param name="textArea">The <see cref="ItextArea"/> which is used for callback purposes</param>
public override void Execute(TextArea textArea)
{
if (textArea.SelectionManager.HasSomethingSelected)
{
Delete.DeleteSelection(textArea);
}
else
{
if (textArea.Caret.Offset > 0 && !textArea.IsReadOnly(textArea.Caret.Offset - 1))
{
textArea.BeginUpdate();
int curLineNr = textArea.Document.GetLineNumberForOffset(textArea.Caret.Offset);
int curLineOffset = textArea.Document.GetLineSegment(curLineNr).Offset;
if (curLineOffset == textArea.Caret.Offset)
{
LineSegment line = textArea.Document.GetLineSegment(curLineNr - 1);
int lineEndOffset = line.Offset + line.Length;
int lineLength = line.Length;
textArea.Document.Remove(lineEndOffset, curLineOffset - lineEndOffset);
textArea.Caret.Position = new TextLocation(lineLength, curLineNr - 1);
textArea.Document.RequestUpdate(new TextAreaUpdate(TextAreaUpdateType.PositionToEnd, new TextLocation(0, curLineNr - 1)));
}
else
{
int caretOffset = textArea.Caret.Offset - 1;
textArea.Caret.Position = textArea.Document.OffsetToPosition(caretOffset);
textArea.Document.Remove(caretOffset, 1);
textArea.Document.RequestUpdate(new TextAreaUpdate(TextAreaUpdateType.PositionToLineEnd, new TextLocation(textArea.Caret.Offset - textArea.Document.GetLineSegment(curLineNr).Offset, curLineNr)));
}
textArea.EndUpdate();
}
}
}
/// <remarks>
/// Executes this edit action
/// </remarks>
/// <param name="textArea">The <see cref="ItextArea" /> which is used for callback purposes</param>
public override void Execute(TextArea textArea)
{
// if anything is selected we will just delete it first
if (textArea.SelectionManager.HasSomethingSelected)
{
Delete.DeleteSelection(textArea);
return;
}
textArea.BeginUpdate();
// now delete from the caret to the beginning of the word
var line =
textArea.Document.GetLineSegmentForOffset(textArea.Caret.Offset);
// if we are not at the beginning of a line
if (textArea.Caret.Offset > line.Offset)
{
var prevWordStart = TextUtilities.FindPrevWordStart(
textArea.Document,
textArea.Caret.Offset);
if (prevWordStart < textArea.Caret.Offset)
{
if (!textArea.IsReadOnly(prevWordStart, textArea.Caret.Offset - prevWordStart))
{
textArea.Document.Remove(
prevWordStart,
textArea.Caret.Offset - prevWordStart);
textArea.Caret.Position = textArea.Document.OffsetToPosition(prevWordStart);
}
}
}
// if we are now at the beginning of a line
if (textArea.Caret.Offset == line.Offset)
{
// if we are not on the first line
var curLineNr = textArea.Document.GetLineNumberForOffset(textArea.Caret.Offset);
if (curLineNr > 0)
{
// move to the end of the line above
var lineAbove = textArea.Document.GetLineSegment(curLineNr - 1);
var endOfLineAbove = lineAbove.Offset + lineAbove.Length;
var charsToDelete = textArea.Caret.Offset - endOfLineAbove;
if (!textArea.IsReadOnly(endOfLineAbove, charsToDelete))
{
textArea.Document.Remove(endOfLineAbove, charsToDelete);
textArea.Caret.Position = textArea.Document.OffsetToPosition(endOfLineAbove);
}
}
}
textArea.SetDesiredColumn();
textArea.EndUpdate();
// if there are now less lines, we need this or there are redraw problems
textArea.Document.RequestUpdate(new TextAreaUpdate(TextAreaUpdateType.PositionToEnd, new TextLocation(column: 0, textArea.Document.GetLineNumberForOffset(textArea.Caret.Offset))));
textArea.Document.CommitUpdate();
}
public override void Execute(TextArea textArea)
{
if (textArea.SelectionManager.HasSomethingSelected)
{
Delete.DeleteSelection(textArea);
return;
}
textArea.BeginUpdate();
LineSegment lineSegmentForOffset = textArea.Document.GetLineSegmentForOffset(textArea.Caret.Offset);
if (textArea.Caret.Offset > lineSegmentForOffset.Offset)
{
int num = TextUtilities.FindPrevWordStart(textArea.Document, textArea.Caret.Offset);
if (num < textArea.Caret.Offset && !textArea.IsReadOnly(num, textArea.Caret.Offset - num))
{
textArea.Document.Remove(num, textArea.Caret.Offset - num);
textArea.Caret.Position = textArea.Document.OffsetToPosition(num);
}
}
if (textArea.Caret.Offset == lineSegmentForOffset.Offset)
{
int lineNumberForOffset = textArea.Document.GetLineNumberForOffset(textArea.Caret.Offset);
if (lineNumberForOffset > 0)
{
LineSegment lineSegment = textArea.Document.GetLineSegment(lineNumberForOffset - 1);
int offset = lineSegment.Offset + lineSegment.Length;
int offset1 = textArea.Caret.Offset - offset;
if (!textArea.IsReadOnly(offset, offset1))
{
textArea.Document.Remove(offset, offset1);
textArea.Caret.Position = textArea.Document.OffsetToPosition(offset);
}
}
}
textArea.SetDesiredColumn();
textArea.EndUpdate();
textArea.Document.RequestUpdate(new TextAreaUpdate(TextAreaUpdateType.PositionToEnd, new TextLocation(0, textArea.Document.GetLineNumberForOffset(textArea.Caret.Offset))));
textArea.Document.CommitUpdate();
}