/// <summary>
/// 右下リサイズハンドルの生成
/// </summary>
/// <param name="shape">ハンドルを保持するShapeオブジェクト</param>
/// <param name="handleSize">ハンドルのサイズ</param>
/// <returns>リサイズハンドルのインスタンス</returns>
public static ResizeHandle CreateBottomRightHandle(this Shape shape, Size handleSize)
{
var result
= new ResizeHandle(shape.Color, Cursors.SizeNWSE, handleSize,
() => new Point(shape.Bounds.Right, shape.Bounds.Bottom),
ResizeHandle.HandleAlignment.BottomRight);
result.Draged += (_, e) =>
shape.Bounds = new Rectangle(shape.Bounds.Left,
shape.Bounds.Top,
e.Location.X - shape.Bounds.Left,
e.Location.Y - shape.Bounds.Top);
result.SetLocation();
return result;
}
/// <summary>
/// 左辺中央リサイズハンドルの生成
/// </summary>
/// <param name="shape">ハンドルを保持するShapeオブジェクト</param>
/// <param name="handleSize">ハンドルのサイズ</param>
/// <returns>リサイズハンドルのインスタンス</returns>
public static ResizeHandle CreateCenterLeftHandle(this Shape shape, Size handleSize)
{
var result
= new ResizeHandle(shape.Color, Cursors.SizeWE, handleSize,
() => new Point(shape.Bounds.Left, (shape.Bounds.Top + shape.Bounds.Bottom) / 2),
ResizeHandle.HandleAlignment.CenterLeft);
result.Draged += (_, e) =>
shape.Bounds = new Rectangle(e.Location.X,
shape.Bounds.Top,
shape.Bounds.Right - e.Location.X,
shape.Bounds.Height);
result.SetLocation();
return(result);
}
/// <summary>
/// 右上リサイズハンドルの生成
/// </summary>
/// <param name="shape">ハンドルを保持するShapeオブジェクト</param>
/// <param name="handleSize">ハンドルのサイズ</param>
/// <returns>リサイズハンドルのインスタンス</returns>
public static ResizeHandle CreateTopRightHandle(this Shape shape, Size handleSize)
{
var result
= new ResizeHandle(shape.Color, Cursors.SizeNESW, handleSize,
() => new Point(shape.Bounds.Right, shape.Bounds.Top),
ResizeHandle.HandleAlignment.TopRight);
result.Draged += (_, e) =>
shape.Bounds = new Rectangle(shape.Bounds.Left,
e.Location.Y,
e.Location.X - shape.Bounds.Left,
shape.Bounds.Bottom - e.Location.Y);
result.SetLocation();
return(result);
}
/// <summary>
/// 左上リサイズハンドルの生成
/// </summary>
/// <param name="shape">ハンドルを保持するShapeオブジェクト</param>
/// <param name="handleSize">ハンドルのサイズ</param>
/// <returns>リサイズハンドルのインスタンス</returns>
public static ResizeHandle CreateTopLeftHandle(this Shape shape, Size handleSize)
{
var result
= new ResizeHandle(shape.Color, Cursors.SizeNWSE, handleSize,
() => shape.Bounds.Location,
ResizeHandle.HandleAlignment.TopLeft);
result.Draged += (_, e) =>
shape.Bounds = new Rectangle(e.Location.X,
e.Location.Y,
shape.Bounds.Right - e.Location.X,
shape.Bounds.Bottom - e.Location.Y);
result.SetLocation();
return(result);
}
/// <summary>
/// 下辺中央リサイズハンドルの生成
/// </summary>
/// <param name="shape">ハンドルを保持するShapeオブジェクト</param>
/// <param name="handleSize">ハンドルのサイズ</param>
/// <returns>リサイズハンドルのインスタンス</returns>
public static ResizeHandle CreateBottomCenterHandle(this Shape shape, Size handleSize)
{
var result
= new ResizeHandle(shape.Color, Cursors.SizeNS, handleSize,
() => new Point((shape.Bounds.Left + shape.Bounds.Right) / 2, shape.Bounds.Bottom),
ResizeHandle.HandleAlignment.BottomCenter);
result.Draged += (_, e) =>
shape.Bounds = new Rectangle(shape.Bounds.Left,
shape.Bounds.Top,
shape.Bounds.Width,
e.Location.Y - shape.Bounds.Top);
result.SetLocation();
return(result);
}
/// <summary>
/// ドラッグ
/// </summary>
/// <param name="e">マウスドラッグイベント引数</param>
public void Drag(MouseDragEventArgs e)
{
var act = Active as Shape;
ResizeHandle activeHandle = null;
if (act != null)
{
activeHandle = act.ActiveHandle;
}
if (activeHandle == null)
{
foreach (IDraggable draggable in this.Items)
{
draggable.Drag(e);
}
return;
}
var actAnchor = activeHandle.GetAnchor();
foreach (IDraggable draggable in this.Items)
{
var shape = draggable as Shape;
if (shape == null)
{
continue;
}
shape.ActiveateHandle(activeHandle.Alignment);
var anchor = shape.ActiveHandle.GetAnchor();
var delta = (Size)(anchor - (Size)actAnchor);
var args = new MouseDragEventArgs(e.StartLocation + delta,
e.LastLocation + delta,
e.Location + delta);
shape.Drag(args);
}
}
/// <summary>
/// 指定ハンドルをアクティブにする
/// </summary>
/// <param name="alignment">アクティブにするハンドルを指定</param>
public void ActiveateHandle(ResizeHandle.HandleAlignment alignment)
{
this.ActiveHandle = this.Handles.Where(h => h.Alignment == alignment)
.FirstOrDefault();
}
/// <summary>
/// 左辺中央リサイズハンドルの生成
/// </summary>
/// <param name="shape">ハンドルを保持するShapeオブジェクト</param>
/// <param name="handleSize">ハンドルのサイズ</param>
/// <returns>リサイズハンドルのインスタンス</returns>
public static ResizeHandle CreateCenterLeftHandle(this Shape shape, Size handleSize)
{
var result
= new ResizeHandle(shape.Color, Cursors.SizeWE, handleSize,
() => new Point(shape.Bounds.Left, (shape.Bounds.Top + shape.Bounds.Bottom) / 2),
ResizeHandle.HandleAlignment.CenterLeft);
result.Draged += (_, e) =>
shape.Bounds = new Rectangle(e.Location.X,
shape.Bounds.Top,
shape.Bounds.Right - e.Location.X,
shape.Bounds.Height);
result.SetLocation();
return result;
}
/// <summary>
/// 左上リサイズハンドルの生成
/// </summary>
/// <param name="shape">ハンドルを保持するShapeオブジェクト</param>
/// <param name="handleSize">ハンドルのサイズ</param>
/// <returns>リサイズハンドルのインスタンス</returns>
public static ResizeHandle CreateTopLeftHandle(this Shape shape, Size handleSize)
{
var result
= new ResizeHandle(shape.Color, Cursors.SizeNWSE, handleSize,
() => shape.Bounds.Location,
ResizeHandle.HandleAlignment.TopLeft);
result.Draged += (_, e) =>
shape.Bounds = new Rectangle(e.Location.X,
e.Location.Y,
shape.Bounds.Right - e.Location.X,
shape.Bounds.Bottom - e.Location.Y);
result.SetLocation();
return result;
}
/// <summary>
/// 上辺中央リサイズハンドルの生成
/// </summary>
/// <param name="shape">ハンドルを保持するShapeオブジェクト</param>
/// <param name="handleSize">ハンドルのサイズ</param>
/// <returns>リサイズハンドルのインスタンス</returns>
public static ResizeHandle CreateTopCenterHandle(this Shape shape, Size handleSize)
{
var result
= new ResizeHandle(shape.Color, Cursors.SizeNS, handleSize,
() => new Point((shape.Bounds.Left + shape.Bounds.Right) / 2, shape.Bounds.Top),
ResizeHandle.HandleAlignment.TopCenter);
result.Draged += (_, e) =>
shape.Bounds = new Rectangle(shape.Bounds.Left,
e.Location.Y,
shape.Bounds.Width,
shape.Bounds.Bottom - e.Location.Y);
result.SetLocation();
return result;
}
