/* ----------------------------------------------------------------- */
///
/// Rotate
///
/// <summary>
/// Rotates the selected images and regenerates them.
/// </summary>
///
/// <param name="src">Source collection.</param>
/// <param name="degree">Rotation angle in degree unit.</param>
///
/// <returns>
/// History item to execute undo and redo actions.
/// </returns>
///
/* ----------------------------------------------------------------- */
public static HistoryItem Rotate(this ImageCollection src, int degree)
{
var indices = src.GetSelectedIndices();
return(HistoryItem.Invoke(
() => src.Rotate(indices, degree),
() => src.Rotate(indices, -degree)
));
}
/* ----------------------------------------------------------------- */
///
/// Move
///
/// <summary>
/// Moves the selected images at the specified distance.
/// </summary>
///
/// <param name="src">Source collection.</param>
/// <param name="delta">Moving distance.</param>
///
/// <returns>
/// History item to execute undo and redo actions.
/// </returns>
///
/* ----------------------------------------------------------------- */
public static HistoryItem Move(this ImageCollection src, int delta)
{
var indices = src.GetSelectedIndices();
var cvt = indices.Select(i => i + delta).ToList();
return(HistoryItem.Invoke(
() => src.Move(indices, delta),
() => src.Move(cvt, -delta)
));
}
/* ----------------------------------------------------------------- */ /// /// Remove /// /// <summary> /// Removes the selected images. /// </summary> /// /// <param name="src">Source collection.</param> /// /// <returns> /// History item to execute undo and redo actions. /// </returns> /// /* ----------------------------------------------------------------- */ public static HistoryItem Remove(this ImageCollection src) => src.RemoveAt(src.GetSelectedIndices());