private void ReplaceAll(FindDialog.SettingsInfo settings)
{
if (String.IsNullOrEmpty(settings.FindText))
{
return;
}
ITextStorage find = textEditControl.TextStorageFactory.FromUtf16Buffer(
settings.FindText,
0,
settings.FindText.Length,
Environment.NewLine);
ITextStorage replace = textEditControl.TextStorageFactory.FromUtf16Buffer(
settings.ReplaceText,
0,
settings.ReplaceText.Length,
Environment.NewLine);
using (IDisposable undoGroup = textEditControl.UndoOpenGroup())
{
SelPoint start, end;
if (settings.RestrictToSelection)
{
textEditControl.UndoSaveSelection();
start = textEditControl.SelectionStart;
end = textEditControl.SelectionEnd;
}
else
{
start = new SelPoint(0, 0);
end = new SelPoint(textEditControl.Count - 1, textEditControl.GetLine(textEditControl.Count - 1).Length);
}
textEditControl.SetInsertionPoint(start);
while (textEditControl.Find(find, settings.CaseSensitive, settings.MatchWholeWord, false/*wrap*/, false/*up*/)
&& (textEditControl.SelectionStart <= end)
&& (textEditControl.SelectionEnd <= end))
{
end = textEditControl.AdjustForRemove(end, textEditControl.Selection);
end = textEditControl.AdjustForInsert(end, textEditControl.SelectionStart, replace);
textEditControl.SelectedTextStorage = replace;
textEditControl.SetInsertionPoint(textEditControl.SelectionEndLine, textEditControl.SelectionEndCharPlusOne);
}
if (settings.RestrictToSelection)
{
textEditControl.SetSelection(start, end, false/*startIsActive*/);
}
}
textEditControl.ScrollToSelection();
}
public SelRange(SelPoint start, SelPoint end)
{
if (start.CompareTo(end) > 0)
{
throw new ArgumentException();
}
this.Start = start;
this.End = end;
}
private void previousUTF16SurrogatePairToolStripMenuItem_Click(object sender, EventArgs e)
{
SelPoint position = textEditControl.SelectionActive;
ITextLine currentLine = null;
IDecodedTextLine currentLineDecoded = null;
SelPoint zero = new SelPoint();
while (position > zero)
{
if (currentLine == null)
{
currentLine = textEditControl[position.Line];
currentLineDecoded = currentLine.Decode_MustDispose();
}
if (position.Column >= 2)
{
if (Char.IsHighSurrogate(currentLineDecoded[position.Column - 2])
&& Char.IsLowSurrogate(currentLineDecoded[position.Column - 1]))
{
textEditControl.SetSelection(
new SelPoint(position.Line, position.Column - 2),
position,
true/*selectStartIsActive*/);
return;
}
}
position.Column--;
if (position.Column < 0)
{
position = new SelPoint(position.Line - 1, 0);
currentLine = null;
currentLineDecoded = null;
if (position.Line >= 0)
{
position.Column = textEditControl[position.Line].Length;
}
}
}
textEditControl.ErrorBeep();
}
public int CompareTo(SelPoint other)
{
int c;
c = this.Line.CompareTo(other.Line);
if (c == 0)
{
c = this.Column.CompareTo(other.Column);
}
return c;
}
// info about UTF-16 surrogates ("Supplementary Characters")
// https://msdn.microsoft.com/en-us/library/windows/desktop/dd374069%28v=vs.85%29.aspx
// examples here:
// https://en.wikipedia.org/wiki/UTF-16#Examples
// http://www.i18nguy.com/unicode-example-plane1.html
private void nextUTF16SurrogatePairToolStripMenuItem_Click(object sender, EventArgs e)
{
SelPoint position = textEditControl.SelectionActive;
ITextLine currentLine = null;
IDecodedTextLine currentLineDecoded = null;
while (position < textEditControl.End)
{
if (currentLine == null)
{
currentLine = textEditControl[position.Line];
currentLineDecoded = currentLine.Decode_MustDispose();
}
if (position.Column <= currentLineDecoded.Length - 2)
{
if (Char.IsHighSurrogate(currentLineDecoded[position.Column])
&& Char.IsLowSurrogate(currentLineDecoded[position.Column + 1]))
{
textEditControl.SetSelection(
position,
new SelPoint(position.Line, position.Column + 2),
false/*selectStartIsActive*/);
return;
}
}
position.Column++;
if (position.Column >= currentLine.Length)
{
position = new SelPoint(position.Line + 1, 0);
currentLine = null;
currentLineDecoded = null;
}
}
textEditControl.ErrorBeep();
}
