public CachedLine(UserLine realLine)
{
#region param checks
if (realLine == null)
{
throw new ArgumentNullException("realLine");
}
#endregion
RealLine = realLine;
}
public UserLine( UserLine copy )
{
#region param checks
if( copy == null )
{
throw new ArgumentNullException( "copy" );
}
#endregion
CachedWrapAt = -1;
IsOutput = copy.IsOutput;
foreach( var span in copy.Spans )
{
Spans.Add( new Span( span ) );
}
}
public UserLine(UserLine copy)
{
#region param checks
if (copy == null)
{
throw new ArgumentNullException("copy");
}
#endregion
CachedWrapAt = -1;
IsOutput = copy.IsOutput;
foreach (var span in copy.Spans)
{
Spans.Add(new Span(span));
}
}
private void UpdateLineCache( UserLine line )
{
line.CachedLines = new List<CachedLine>();
line.CachedWrapAt = CharsPerLine;
int len = 0;
CachedLine cachedLine = null;
foreach( var origSpan in line.Spans )
{
if( cachedLine == null )
{
cachedLine = new CachedLine( line );
line.CachedLines.Add( cachedLine );
}
if( (origSpan.Text.Length + len) < CharsPerLine )
{
cachedLine.Spans.Add( origSpan );
len += origSpan.Text.Length;
}
else
{
string spanText = origSpan.Text;
while( spanText.Length > 0 )
{
string substring = spanText.Substring( 0, Math.Min( CharsPerLine - len, spanText.Length ) );
spanText = spanText.Substring( Math.Min( CharsPerLine - len, spanText.Length ) );
len = 0;
var cachedSpan = new Span( substring, origSpan.ForegroundColour, origSpan.BackgroundColour );
cachedLine.Spans.Add( cachedSpan );
if( spanText.Length > 0 )
{
cachedLine = new CachedLine( line );
line.CachedLines.Add( cachedLine );
cachedLine.Spans.Add( line.IsOutput ? PromptOutputWrap : PromptWrap );
len += line.IsOutput ? PromptOutputWrap.Text.Length : PromptWrap.Text.Length;
}
}
}
}
}
private void ClearCurrentLine()
{
m_currentLine = new UserLine();
m_currentLine.Spans.Add( Prompt );
}
public void WriteOutput( string text, Colour foregroundColour, Colour backgroundColour )
{
ResetHistoryNavigation();
var outputLines = Regex.Split( text, @"\r\n|\r|\n" );
foreach( string outputLine in outputLines )
{
var line = new UserLine();
line.IsOutput = true;
line.Spans.Add( PromptOutput );
var span = new Span( outputLine, foregroundColour, backgroundColour );
line.Spans.Add( span );
UpdateMaxHistoryItems();
m_lines.AddFirst( line );
}
m_currentLine = new UserLine();
m_currentLine.Spans.Add( Prompt );
}
private void ShowHistoryItem()
{
m_currentLine = new UserLine( m_historyItem.Value );
}
