public MultiLineTextManager(MultiLineTextBox owner, SpecialCharacterFlags flags)
{
Owner = owner;
Font = Owner.Font;
Flags = flags;
LineHeight = (int)Font.LineHeight;
m_Paragraphs = new ParagraphList(LineHeight, BreakWidth);
Paragraph para = new Paragraph(0, BreakWidth, String.Empty, Font, Flags);
Paragraphs.AddLast(para);
}
public void LoadTextAsync(string value, float breakWidth)
{
BreakWidth = breakWidth;
if (value == null)
{
value = String.Empty;
}
Task.Factory.StartNew(() => {
Stopwatch sw = Stopwatch.StartNew();
int index = 0;
Paragraphs.Clear();
ParagraphList paragraphs = new ParagraphList(LineHeight, BreakWidth);
char splitChar = AutoDetectLineBreakChar(value);
if (!GroupParagraphs)
{
Strings.Split(value, splitChar).ForEach(line =>
paragraphs.AddLast(new Paragraph(index++, BreakWidth, line, Font, Flags))
);
}
else
{
const string splitStr = "\r\n\r\n";
Strings.Split(value, splitStr).ForEach(line => {
paragraphs.AddLast(new Paragraph(index++, BreakWidth, line.Replace("\n", " ") + "\n", Font, Flags));
paragraphs.AddLast(new Paragraph(index++, BreakWidth, "\n", Font, Flags));
});
}
paragraphs.OnUpdate();
Concurrency.LockFreeUpdate(ref m_Paragraphs, paragraphs);
this.LogVerbose("{0} characters of text in {1} paragraphs loaded into the editor in {2} ms.", value.Length.ToString("n0"), Paragraphs.Count.ToString("n0"), sw.ElapsedMilliseconds.ToString("n0"));
}).ContinueWith((t) => {
if (t.Status == TaskStatus.RanToCompletion)
{
if (Paragraphs.BreakWidth != BreakWidth)
{
Paragraphs.OnUpdateBreakWidthAsync(BreakWidth);
}
}
}).ContinueWith((t) => {
Owner.UndoRedoManager.Clear();
if (LoadingCompleted != null)
{
LoadingCompleted(this, EventArgs.Empty);
}
});
}