/// <summary>
/// Gets the <see cref="Cursor"/> for a <see cref="ITransBox"/>.
/// </summary>
/// <param name="type">The <see cref="TransBoxType"/>.</param>
/// <returns>The <see cref="Cursor"/> of a <see cref="ITransBox"/> for the given <paramref name="type"/>.</returns>
static Cursor GetCursor(TransBoxType type)
{
switch (type)
{
case TransBoxType.Bottom:
case TransBoxType.Top:
return(Cursors.SizeNS);
case TransBoxType.Left:
case TransBoxType.Right:
return(Cursors.SizeWE);
case TransBoxType.TopLeft:
case TransBoxType.BottomRight:
return(Cursors.SizeNWSE);
case TransBoxType.TopRight:
case TransBoxType.BottomLeft:
return(Cursors.SizeNESW);
case TransBoxType.Move:
return(Cursors.SizeAll);
default:
const string errmsg = "Unsupported TransBoxType `{0}`.";
if (log.IsErrorEnabled)
{
log.ErrorFormat(errmsg, type);
}
Debug.Fail(string.Format(errmsg, type));
return(Cursors.Default);
}
}
/// <summary>
/// Initializes a new instance of the <see cref="TransBox"/> class.
/// </summary>
/// <param name="owner">The <see cref="TransBoxManager"/>.</param>
/// <param name="type">The <see cref="TransBoxType"/>.</param>
/// <param name="spatial">The <see cref="ISpatial"/>.</param>
TransBox(TransBoxManager owner, TransBoxType type, ISpatial spatial)
{
_owner = owner;
_type = type;
_spatial = spatial;
_size = GetTransBoxSize(type);
_position = GetPosition();
}
/// <summary>
/// Initializes a new instance of the <see cref="TransBox"/> class.
/// </summary>
/// <param name="owner">The <see cref="TransBoxManager"/>.</param>
/// <param name="type">The <see cref="TransBoxType"/>.</param>
/// <param name="spatial">The <see cref="ISpatial"/>.</param>
TransBox(TransBoxManager owner, TransBoxType type, ISpatial spatial)
{
_owner = owner;
_type = type;
_spatial = spatial;
_size = GetTransBoxSize(type);
_position = GetPosition();
}
/// <summary>
/// Gets the <see cref="ISprite"/> for a <see cref="ITransBox"/>.
/// </summary>
/// <param name="type">The <see cref="TransBoxType"/>.</param>
/// <returns>The <see cref="ISprite"/> of a <see cref="ITransBox"/> for the given <paramref name="type"/>.</returns>
static ISprite GetSprite(TransBoxType type)
{
switch (type)
{
case TransBoxType.Move:
return(SystemSprites.Move);
default:
return(SystemSprites.Resize);
}
}
static Vector2 GetResizeVector(TransBoxType t)
{
switch (t)
{
case TransBoxType.Bottom:
return(new Vector2(0, 1));
case TransBoxType.BottomLeft:
return(new Vector2(-1, 1));
case TransBoxType.BottomRight:
return(new Vector2(1, 1));
case TransBoxType.Left:
return(new Vector2(-1, 0));
case TransBoxType.Right:
return(new Vector2(1, 0));
case TransBoxType.Top:
return(new Vector2(0, -1));
case TransBoxType.TopLeft:
return(new Vector2(-1, -1));
case TransBoxType.TopRight:
return(new Vector2(1, -1));
default:
const string errmsg = "Unsupported TransBoxType `{0}`.";
if (log.IsErrorEnabled)
{
log.ErrorFormat(errmsg, t);
}
Debug.Fail(string.Format(errmsg, t));
return(Vector2.Zero);
}
}
/// <summary>
/// Gets the size for a <see cref="ITransBox"/>.
/// </summary>
/// <param name="type">The <see cref="TransBoxType"/>.</param>
/// <returns>The size of a <see cref="ITransBox"/> for the given <paramref name="type"/>.</returns>
static Vector2 GetTransBoxSize(TransBoxType type)
{
return GetSprite(type).Size;
}
/// <summary>
/// Gets the <see cref="ISprite"/> for a <see cref="ITransBox"/>.
/// </summary>
/// <param name="type">The <see cref="TransBoxType"/>.</param>
/// <returns>The <see cref="ISprite"/> of a <see cref="ITransBox"/> for the given <paramref name="type"/>.</returns>
static ISprite GetSprite(TransBoxType type)
{
switch (type)
{
case TransBoxType.Move:
return SystemSprites.Move;
default:
return SystemSprites.Resize;
}
}
/// <summary>
/// Gets the <see cref="Cursor"/> for a <see cref="ITransBox"/>.
/// </summary>
/// <param name="type">The <see cref="TransBoxType"/>.</param>
/// <returns>The <see cref="Cursor"/> of a <see cref="ITransBox"/> for the given <paramref name="type"/>.</returns>
static Cursor GetCursor(TransBoxType type)
{
switch (type)
{
case TransBoxType.Bottom:
case TransBoxType.Top:
return Cursors.SizeNS;
case TransBoxType.Left:
case TransBoxType.Right:
return Cursors.SizeWE;
case TransBoxType.TopLeft:
case TransBoxType.BottomRight:
return Cursors.SizeNWSE;
case TransBoxType.TopRight:
case TransBoxType.BottomLeft:
return Cursors.SizeNESW;
case TransBoxType.Move:
return Cursors.SizeAll;
default:
const string errmsg = "Unsupported TransBoxType `{0}`.";
if (log.IsErrorEnabled)
log.ErrorFormat(errmsg, type);
Debug.Fail(string.Format(errmsg, type));
return Cursors.Default;
}
}
static Vector2 GetResizeVector(TransBoxType t)
{
switch (t)
{
case TransBoxType.Bottom:
return new Vector2(0, 1);
case TransBoxType.BottomLeft:
return new Vector2(-1, 1);
case TransBoxType.BottomRight:
return new Vector2(1, 1);
case TransBoxType.Left:
return new Vector2(-1, 0);
case TransBoxType.Right:
return new Vector2(1, 0);
case TransBoxType.Top:
return new Vector2(0, -1);
case TransBoxType.TopLeft:
return new Vector2(-1, -1);
case TransBoxType.TopRight:
return new Vector2(1, -1);
default:
const string errmsg = "Unsupported TransBoxType `{0}`.";
if (log.IsErrorEnabled)
log.ErrorFormat(errmsg, t);
Debug.Fail(string.Format(errmsg, t));
return Vector2.Zero;
}
}
/// <summary>
/// Gets the size for a <see cref="ITransBox"/>.
/// </summary>
/// <param name="type">The <see cref="TransBoxType"/>.</param>
/// <returns>The size of a <see cref="ITransBox"/> for the given <paramref name="type"/>.</returns>
static Vector2 GetTransBoxSize(TransBoxType type)
{
return(GetSprite(type).Size);
}
