public InternalTextEditWidget(string text, double pointSize, bool multiLine, int tabIndex, TypeFace typeFace = null)
{
TabIndex = tabIndex;
TabStop = true;
MergeTypingDuringUndo = true;
internalTextWidget = new TextWidget(text, pointSize: pointSize, ellipsisIfClipped: false, textColor: _textColor, typeFace: typeFace);
internalTextWidget.Selectable = false;
internalTextWidget.AutoExpandBoundsToText = true;
AddChild(internalTextWidget);
UpdateLocalBounds();
Multiline = multiLine;
FixBarPosition(DesiredXPositionOnLine.Set);
var newUndoData = new TextWidgetUndoCommand(this);
undoBuffer.Add(newUndoData);
Cursor = Cursors.IBeam;
internalTextWidget.TextChanged += new EventHandler(InternalTextWidget_TextChanged);
internalTextWidget.BoundsChanged += new EventHandler(InternalTextWidget_BoundsChanged);
}
public void DeleteSelection(bool createUndoMarker = true)
{
if (ReadOnly)
{
return;
}
if (Selecting)
{
if (CharIndexToInsertBefore < SelectionIndexToStartBefore)
{
DeleteIndexRange(CharIndexToInsertBefore, SelectionIndexToStartBefore - 1);
}
else
{
DeleteIndexRange(SelectionIndexToStartBefore, CharIndexToInsertBefore - 1);
CharIndexToInsertBefore = SelectionIndexToStartBefore;
}
if (createUndoMarker)
{
var newUndoDeleteData = new TextWidgetUndoCommand(this);
undoBuffer.Add(newUndoDeleteData);
}
Selecting = false;
}
}
public void ClearUndoHistory()
{
undoBuffer.ClearHistory();
var newUndoData = new TextWidgetUndoCommand(this);
undoBuffer.Add(newUndoData);
}
public void PasteFromClipboard()
{
if (ReadOnly)
{
return;
}
if (Clipboard.Instance.ContainsText)
{
if (Selecting)
{
DeleteSelection(false);
}
var stringBuilder = new StringBuilder(internalTextWidget.Text);
string stringOnClipboard = Clipboard.Instance.GetText();
if (!Multiline)
{
stringOnClipboard = Regex.Replace(stringOnClipboard, @"\r\n?|\n", " ");
}
stringBuilder.Insert(CharIndexToInsertBefore, stringOnClipboard);
CharIndexToInsertBefore += stringOnClipboard.Length;
internalTextWidget.Text = stringBuilder.ToString();
var newUndoCommand = new TextWidgetUndoCommand(this);
undoBuffer.Add(newUndoCommand);
}
}
private void PasteFromClipboard()
{
#if SILVERLIGHT
throw new NotImplementedException();
#else
if (Clipboard.ContainsText())
{
if (Selecting)
{
DeleteSelection(false);
}
StringBuilder stringBuilder = new StringBuilder(internalTextWidget.Text);
String stringOnClipboard = Clipboard.GetText();
if (!Multiline)
{
stringOnClipboard = Regex.Replace(stringOnClipboard, @"\r\n?|\n", " ");
}
stringBuilder.Insert(CharIndexToInsertBefore, stringOnClipboard);
CharIndexToInsertBefore += stringOnClipboard.Length;
internalTextWidget.Text = stringBuilder.ToString();
TextWidgetUndoCommand newUndoCommand = new TextWidgetUndoCommand(this);
undoBuffer.Add(newUndoCommand);
}
#endif
}
public override void OnKeyPress(KeyPressEventArgs keyPressEvent)
{
if (Selecting)
{
DeleteSelection();
Selecting = false;
}
StringBuilder tempString = new StringBuilder(internalTextWidget.Text);
tempString.Insert(CharIndexToInsertBefore, keyPressEvent.KeyChar.ToString());
keyPressEvent.Handled = true;
CharIndexToInsertBefore++;
internalTextWidget.Text = tempString.ToString();
base.OnKeyPress(keyPressEvent);
FixBarPosition(DesiredXPositionOnLine.Set);
TextWidgetUndoCommand newUndoData = new TextWidgetUndoCommand(this);
if (MergeTypingDuringUndo &&
charIndexToAcceptAsMerging == CharIndexToInsertBefore - 1 &&
keyPressEvent.KeyChar != '\n' && keyPressEvent.KeyChar != '\r')
{
undoBuffer.Add(newUndoData);
}
else
{
undoBuffer.Add(newUndoData);
}
charIndexToAcceptAsMerging = CharIndexToInsertBefore;
}
public override void OnKeyPress(KeyPressEventArgs keyPressEvent)
{
// this must be called first to ensure we get the correct Handled state
base.OnKeyPress(keyPressEvent);
if (!keyPressEvent.Handled)
{
if (keyPressEvent.KeyChar < 32 &&
keyPressEvent.KeyChar != 13 &&
keyPressEvent.KeyChar != 9)
{
return;
}
if (ReadOnly)
{
return;
}
if (Selecting)
{
DeleteSelection();
Selecting = false;
}
var tempString = new StringBuilder(internalTextWidget.Text);
if (keyPressEvent.KeyChar == '\r')
{
tempString.Insert(CharIndexToInsertBefore, "\n");
}
else
{
tempString.Insert(CharIndexToInsertBefore, keyPressEvent.KeyChar.ToString());
}
keyPressEvent.Handled = true;
CharIndexToInsertBefore++;
internalTextWidget.Text = tempString.ToString();
FixBarPosition(DesiredXPositionOnLine.Set);
var newUndoData = new TextWidgetUndoCommand(this);
if (MergeTypingDuringUndo &&
charIndexToAcceptAsMerging == CharIndexToInsertBefore - 1 &&
keyPressEvent.KeyChar != '\n' && keyPressEvent.KeyChar != '\r')
{
undoBuffer.Add(newUndoData);
}
else
{
undoBuffer.Add(newUndoData);
}
charIndexToAcceptAsMerging = CharIndexToInsertBefore;
}
}
