void SetUndoDelete(int pos, int delLen)
{
UndoRedoManager.Do(new UndoRedoDeleteMemento {
ScrollOffset = ScrollOffset,
SelStart = SelStart,
SelLength = SelLength,
SelectedText = SelectedText,
Position = pos,
Data = RowManager.GetCharRange(pos, delLen),
});
}
public void Copy()
{
if (!CanCopy)
{
return;
}
string content = RowManager.GetCharRange(SelStart, SelLength);
PlatformExtensions.SetClipboardText(content);
Modified = true;
}
// *** Clipboard ***
public void Cut()
{
if (!CanCut)
{
return;
}
int pos = RowManager.AbsCursorPosition;
this.SetUndoDelete(pos, 0);
string content = RowManager.GetCharRange(SelStart, SelLength);
DeleteSelection();
PlatformExtensions.SetClipboardText(content);
ResetSelection();
Invalidate();
}
public override bool OnKeyDown(KeyboardKeyEventArgs e)
{
if (ModifierKeys.AltPressed || !IsFocused)
{
return(false);
}
//Console.WriteLine (e.Key);
//if (base.OnKeyDown (e))
// return false;
switch (e.Key)
{
case Key.ShiftLeft:
case Key.ShiftRight:
//if (SelLength == 0)
// SelStart = RowManager.AbsCursorPosition;
return(true);
case Key.Left:
if (e.Control)
{
RowManager.MovePrevWord();
}
else
{
RowManager.MovePrevChar();
}
SetSelection(e.Shift);
break;
case Key.Right:
if (e.Control)
{
RowManager.MoveNextWord();
}
else
{
RowManager.MoveNextChar();
}
SetSelection(e.Shift);
break;
case Key.Up:
if (e.Control)
{
ScrollLineUp();
return(true);
}
else
{
RowManager.MovePrevLine();
SetSelection(e.Shift);
}
break;
case Key.Down:
if (e.Control)
{
ScrollLineDown();
return(true);
}
else
{
RowManager.MoveNextLine();
SetSelection(e.Shift);
}
break;
case Key.Home:
if (e.Control)
{
RowManager.MoveHome();
}
else
{
RowManager.MoveParagraphHome();
}
SetSelection(e.Shift);
break;
case Key.End:
if (e.Control)
{
RowManager.MoveEnd();
}
else
{
RowManager.MoveParagraphEnd();
}
SetSelection(e.Shift);
break;
case Key.PageUp:
if (e.Control)
{
return(false);
}
RowManager.MovePageUp((int)((Height - Padding.Height) / RowManager.LineHeight));
SetSelection(e.Shift);
break;
case Key.PageDown:
if (e.Control)
{
return(false);
}
RowManager.MovePageDown((int)((Height - Padding.Height) / RowManager.LineHeight));
SetSelection(e.Shift);
break;
case Key.BackSpace:
if (SelLength > 0)
{
//this.SetUndoDelete (RowManager.AbsCursorPosition, 0);
Delete();
}
else
{
int pos = RowManager.AbsCursorPosition;
UndoRedoManager.Do(new UndoRedoBackspaceMemento {
ScrollOffset = ScrollOffset,
SelStart = SelStart,
SelLength = SelLength,
SelectedText = SelectedText,
Position = pos - 1,
Data = RowManager.GetCharRange(pos - 1, 1),
});
RowManager.DeletePrevChar();
}
ResetSelection();
SetupDocumentSize();
break;
case Key.Enter:
SetUndoInsert("\n");
if (SelLength > 0)
{
DeleteSelection();
SelLength = 0;
}
RowManager.InsertLineBreak();
SetupDocumentSize();
break;
case Key.C:
if (e.Control)
{
Copy();
}
break;
case Key.V:
if (e.Control)
{
Paste();
}
break;
case Key.X:
if (e.Control)
{
Cut();
}
break;
case Key.Delete:
if (e.Shift)
{
Cut();
}
else
{
Delete();
}
SetupDocumentSize();
break;
case Key.Insert:
if (e.Control)
{
Copy();
}
else if (e.Shift)
{
Paste();
}
break;
case Key.A:
if (e.Control)
{
SelectAll();
}
break;
case Key.F:
if (e.Control)
{
Find();
}
break;
case Key.Y: // OpenTK sends an Y for a Z
if (e.Control)
{
Undo();
}
break;
case Key.Z: // OpenTK sends an Z for a Y
if (e.Control)
{
Redo();
}
break;
case Key.Escape:
if (HideSelection)
{
SelectNone();
}
return(false);
/***
* case Key.Tab:
* if (!AllowTabKey)
* return false;
* InsertString (CursorPosition++, new String (' ', 4));
* CursorPosition += 3;
* break;
***/
default:
//this.LogDebug ("OnKeyDown not handled: {0}", e.Key.ToString ());
// F10
//return false;
break;
}
CursorOn = true;
EnsureCurrentRowVisible();
Invalidate();
return(true);
}