protected void HandleInsert(char character)
{
// Remember the column position of the cursor
CursorPosition position = new CursorPosition(Console.CursorLeft, Console.CursorTop);
// Get editor buffer-aware line and column indicies
int zeroIndexedCurrentLine = editor.EditorBuffer.CurrentLineIndex;
int zeroIndexedCurrentColumn = editor.EditorBuffer.CurrentColumnIndex;
// Insert character
editor.GetTextBuffer().Insert(zeroIndexedCurrentLine, zeroIndexedCurrentColumn, character);
// Restore the column position of the curor before rewriting the line
position.Restore();
// Advance cursor position by one
editor.EditorBuffer.AdvanceCursor();
}
public void paint()
{
// Remember console configuration
CursorPosition originalCursorPosition = new CursorPosition(
Console.CursorLeft,
Console.CursorTop
);
ColorConfiguration originalColorConfiguration = new ColorConfiguration(
Console.BackgroundColor,
Console.ForegroundColor
);
position.Restore();
colorConfiguration.Restore();
Console.Write(GenerateContent());
// Reset stored configuration
originalColorConfiguration.Restore();
originalCursorPosition.Restore();
}
protected void HandleBackpace()
{
// Remember the column position of the cursor
CursorPosition position = new CursorPosition(Console.CursorLeft, Console.CursorTop);
// Get editor buffer-aware line and column indicies
int zeroIndexedCurrentLine = editor.EditorBuffer.CurrentLineIndex;
int zeroIndexedCurrentColumn = editor.EditorBuffer.CurrentColumnIndex;
int zeroIndexedPositionToDelete = zeroIndexedCurrentColumn - 1;
if (zeroIndexedPositionToDelete < 0)
{
if (zeroIndexedCurrentLine > 0)
{
int textLengthFromPreviouLine = editor.TextBuffer.GetLine(zeroIndexedCurrentLine - 1).Length;
string textFromCurrentLine = editor.TextBuffer.GetLine(zeroIndexedCurrentLine);
editor.TextBuffer.RemoveLine(zeroIndexedCurrentLine);
editor.TextBuffer.AppendToLine(zeroIndexedCurrentLine - 1, textFromCurrentLine);
// Need to tell editor.EditorBuffer where cursor should be
editor.EditorBuffer.MoveCursorTo(textLengthFromPreviouLine, zeroIndexedCurrentLine);
}
else
{
return;
}
}
else
{
// Remove the character from the underlying text buffer
editor.GetTextBuffer().Remove(zeroIndexedCurrentLine, zeroIndexedPositionToDelete, 1);
// Reset cursor position
position.Restore();
// Advance curson position back by one
editor.EditorBuffer.MoveCursorLeft();
}
}
// Fluent Interface
public StatusBuffer AtPosition(CursorPosition position)
{
this.position = position;
return(this);
}
public EditorBuffer AtPosition(CursorPosition position)
{
rootPosition = position;
return(this);
}
public EditorBufferLine AtPosition(CursorPosition position)
{
this.rootPosition = position;
return(this);
}
