// Constructor.
public TextTree(TextBuffer buffer, TextLayout layout)
{
// set the buffer for this text tree
this.buffer = buffer;
// set the layout for this text tree
this.layout = layout;
// set the root for this text tree
root = new TextGroup();
// insert a new line into the buffer
buffer.Insert(0, '\n');
// create the first line
TextLine line = new TextLine
(buffer.MarkPosition(0, true),
buffer.MarkPosition(1, true));
// insert the first line into the tree
root.InsertChild(null, line);
// update the metrics information
root.UpdateMetrics(layout, true);
// create the caret position
caret = buffer.MarkPosition(0, false);
// create the selection position
selection = buffer.MarkPosition(0, false);
}
// Constructor.
public TextLine(ITextMark start, ITextMark end)
: base()
{
// set the start position for this line
this.start = start;
// set the end position for this line
this.end = end;
// set the character count
charCount = (end.Offset - start.Offset);
// set the line count for this line
lineCount = 1;
}
