private void CenterPointThumb_DragDelta(object sender, DragDeltaEventArgs e)
{
Point dragDelta = new Point(e.HorizontalChange, e.VerticalChange);
if (this.designerItem != null && this._parent != null)
{
if (this._transform != null)
{
dragDelta = _transform.Transform(dragDelta);
}
DesignerCanvas.SetLeft(this, DesignerCanvas.GetLeft(this) + dragDelta.X);
DesignerCanvas.SetTop(this, DesignerCanvas.GetTop(this) + dragDelta.Y);
e.Handled = true;
}
}
/// <summary>
/// 已经开始拖放
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void MoveThumb_DragStarted(object sender, DragStartedEventArgs e)
{
this._beMovedItem = DataContext as DesignerItem;
sp = Mouse.GetPosition(this._parent);
if (this._beMovedItem != null)
{
this._parent = VisualTreeHelper.GetParent(this._beMovedItem) as DesignerCanvas;
this._transform = this._beMovedItem.RenderTransform as RotateTransform;
AdornerLayer adornerLayer = AdornerLayer.GetAdornerLayer(this._parent);
if (adornerLayer != null)
{
this._infoAdorner = new LocationInfoAdorner(this._beMovedItem);
adornerLayer.Add(this._infoAdorner);
}
}
}
public RubberbandAdorner(DesignerCanvas designerCanvas, Point?dragStartPoint)
: base(designerCanvas)
{
this.designerCanvas = designerCanvas;
this.startPoint = dragStartPoint;
this.adornerCanvas = new Canvas();
this.adornerCanvas.Background = Brushes.Transparent;
this.visuals = new VisualCollection(this);
this.visuals.Add(this.adornerCanvas);
this.rubberband = new Rectangle();
this.rubberband.Stroke = Brushes.Navy;
this.rubberband.StrokeThickness = 1;
this.rubberband.Fill = new SolidColorBrush(Color.FromArgb(50, 0, 191, 255));
//TODO 线段样式
//this.rubberband.StrokeDashArray = new DoubleCollection(new double[] { 2 });
this.adornerCanvas.Children.Add(this.rubberband);
}
/// <summary>
/// 已经开始拖放
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void LineThumb_DragStarted(object sender, DragStartedEventArgs e)
{
this._parentItem = DataContext as DesignerItem;
if (this._parentItem != null)
{
this._line = _parentItem.Content as Line;
//初始化起点终点
this._parentCanvas = VisualTreeHelper.GetParent(this._parentItem) as DesignerCanvas;
this._transform = this._line.RenderTransform as RotateTransform;
AdornerLayer adornerLayer = AdornerLayer.GetAdornerLayer(this._parentCanvas);
if (adornerLayer != null)
{
//TODO
//this._infoAdorner = new LineAdorner(this._line);
//adornerLayer.Add(this._infoAdorner);
}
}
}
