protected override void OnMouseMove(MouseEventArgs e)
{
base.OnMouseMove(e);
// if mouse button is not pressed we have no drag operation, ...
if (e.LeftButton != MouseButtonState.Pressed)
{
this.rubberbandSelectionStartPoint = null;
}
// ... but if mouse button is pressed and start
// point value is set we do have one
if (this.rubberbandSelectionStartPoint.HasValue)
{
// create rubberband adorner
AdornerLayer adornerLayer = AdornerLayer.GetAdornerLayer(this);
if (adornerLayer != null)
{
RubberbandAdorner adorner = new RubberbandAdorner(this, rubberbandSelectionStartPoint);
if (adorner != null)
{
adornerLayer.Add(adorner);
}
}
}
e.Handled = true;
}
/// <summary>
/// Removes the rubber band (lasso) adorner.
/// </summary>
/// <param name="sender">Event sender</param>
/// <param name="e">Event arguments</param>
private void RemoveRubberBandAdorner(object sender, EventArgs e)
{
// Get the adorner layer from the canvas
AdornerLayer adornerLayer = AdornerLayer.GetAdornerLayer(canvas);
Debug.Assert(adornerLayer != null, nameof(adornerLayer) + " != null");
// Remove the rubber band adorner
adornerLayer.Remove(_rubberbandAdorner);
_rubberbandAdorner = null;
}
protected override void OnMouseMove(MouseEventArgs e)//鼠标移动事件,绘制矩形虚线选择框
{
base.OnMouseMove(e);
if (e.LeftButton != MouseButtonState.Pressed)
{
_rubberbandSelectionStartPoint = null;
}
if (_rubberbandSelectionStartPoint.HasValue)
{
var adornerLayer = AdornerLayer.GetAdornerLayer(this);// create rubberband adorner
if (adornerLayer != null && DesignMode == MODE.EDIT)
{
var adorner = new RubberbandAdorner(this, _rubberbandSelectionStartPoint);
adornerLayer.Add(adorner);
}
}
e.Handled = true;
}
/// <summary>
/// Create a new rubber band adorner along with its viewmodel in this canvas viewmodel.
/// </summary>
/// <param name="position"></param>
/// <returns></returns>
private RubberBandViewModel GetRubberBand(Point position)
{
this.DestroyRubberband();
RubberBandViewModel rbViewModel = this.CanvasViewModel.RubberBand;
rbViewModel.IsVisible = false;
rbViewModel.Position = new Point(position.X, position.Y);
rbViewModel.EndPosition = new Point(position.X, position.Y);
if (this.mRubberbandAdorner == null)
{
this.mRubberbandAdorner = new RubberbandAdorner(this, new Point(position.X, position.Y));
this.mRubberbandAdorner.Visibility = System.Windows.Visibility.Hidden;
this.mRubberbandAdorner.Width = this.mRubberbandAdorner.Height = 0;
// EndPosition binding with converter
{
var endPosBinding = new Binding("EndPosition");
endPosBinding.Source = rbViewModel;
BindingOperations.SetBinding(this.mRubberbandAdorner, RubberbandAdorner.EndPointProperty, endPosBinding);
}
// Visibility binding with converter
{
var visiblityBinding = new Binding("IsVisible");
visiblityBinding.Source = rbViewModel;
visiblityBinding.Converter = CanvasView.mBoolToVisConverter;
BindingOperations.SetBinding(this.mRubberbandAdorner, RubberbandAdorner.VisibilityProperty, visiblityBinding);
}
AdornerLayer adornerLayer = AdornerLayer.GetAdornerLayer(this);
if (adornerLayer != null)
{
adornerLayer.Add(this.mRubberbandAdorner);
}
}
rbViewModel.IsVisible = true;
return(rbViewModel);
}
/// <summary>
/// Invoked when an unhandled <see cref="E:System.Windows.Input.Mouse.MouseMove"/> attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event.
/// </summary>
/// <param name="e">The <see cref="T:System.Windows.Input.MouseEventArgs"/> that contains the event data.</param>
protected override void OnMouseMove(MouseEventArgs e)
{
if (RubberbandStartPoint != null)
{
if (e.LeftButton == MouseButtonState.Pressed || e.RightButton == MouseButtonState.Pressed)
{
if ((e.GetPosition(this) - RubberbandStartPoint.Value).Length > 2)
{
var adornerLayer = AdornerLayer.GetAdornerLayer(partCanvas);
if (adornerLayer != null)
{
var adorner = new RubberbandAdorner(this, RubberbandStartPoint.Value, Rubberband_Callback);
adornerLayer.Add(adorner);
RubberbandStartPoint = null;
}
}
}
}
base.OnMouseMove(e);
}
private void OnMouseMove(object sender, MouseEventArgs e)
{
// если клавиша мыши не нажата, то нет выделения
if (e.LeftButton != MouseButtonState.Pressed)
{
this.RubberbandSelectionStartPoint = null;
return;
}
// иначе делаем рамку
if (this.RubberbandSelectionStartPoint.HasValue)
{
var adornerLayer = AdornerLayer.GetAdornerLayer(this.DesignerCanvas);
if (adornerLayer != null)
{
var adorner = new RubberbandAdorner(this, TabViewModel);
adornerLayer.Add(adorner);
}
}
e.Handled = true;
}
private void _drawingCanvas_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
{
if (_drawingCanvas.IsMouseCaptured)
{
_drawingCanvas.ReleaseMouseCapture();
}
if (_dragging && !_isSelecting)
{
// remove rubberband adorner from adorner layer
AdornerLayer adornerLayer = AdornerLayer.GetAdornerLayer(_drawingCanvas);
if (adornerLayer != null && _rubberbandAdorner != null)
{
adornerLayer.Remove(_rubberbandAdorner);
_rubberbandAdorner = null;
}
e.Handled = true;
}
_dragging = false;
RemoveResizeAdorner();
UpdateResizeAdorner();
}
/// <summary>
/// Destroy rubber band adorner resources
/// </summary>
private void DestroyRubberband()
{
if (this.mRubberbandAdorner != null)
{
try
{
this.mRubberbandAdorner.Visibility = System.Windows.Visibility.Hidden;
this.CanvasViewModel.ResetRubberBand();
AdornerLayer adornerLayer = AdornerLayer.GetAdornerLayer(this);
if (adornerLayer != null)
{
adornerLayer.Remove(this.mRubberbandAdorner);
}
}
finally
{
this.mRubberbandAdorner = null;
}
}
}
protected override void OnMouseMove(MouseEventArgs e)
{
base.OnMouseMove(e);
if (e.LeftButton != MouseButtonState.Pressed)
{
this.dragStartPoint = null;
}
if (this.dragStartPoint.HasValue)
{
AdornerLayer adornerLayer = AdornerLayer.GetAdornerLayer(this);
if (adornerLayer != null)
{
RubberbandAdorner adorner = new RubberbandAdorner(this, this.dragStartPoint);
if (adorner != null)
{
adornerLayer.Add(adorner);
}
}
e.Handled = true;
}
}
private void Selectionadorner_OnDestroy(RubberbandAdorner sender, SelectionEventArgs e)
{
sender.OnUpdateSelection -= Selectionadorner_OnUpdateSelection;
sender.OnDetach -= Selectionadorner_OnDestroy;
selectionStartPoint = null;
}
private void Selectionadorner_OnUpdateSelection(RubberbandAdorner sender, SelectionEventArgs e)
{
Console.WriteLine(e.Range);
}
private void Selectionadorner_OnAttach(RubberbandAdorner sender, SelectionEventArgs e)
{
}
private void _drawingCanvas_MouseMove(object sender, MouseEventArgs e)
{
OnMouseMove(e);
var position = e.GetPosition(_drawingCanvas);
if (_propEditorViewModel != null)
{
Coordinates = position;
}
if (IsDrawing)
{
return;
}
// if mouse button is not pressed we have no drag operation, ...
if (e.LeftButton == MouseButtonState.Pressed)
{
switch (_dragging)
{
case true:
if (_isSelecting)
{
double XDelta = position.X - _previousPosition.X;
double YDelta = position.Y - _previousPosition.Y;
//Console.Out.WriteLine("Start: {0},{1} - Current {2}, {3} - Delta {4}, {5}", _originMouseStartPoint.X, _originMouseStartPoint.Y,
// position.X, position.Y, XDelta, YDelta);
MoveSelectedItems(XDelta, YDelta);
_previousPosition = position;
RemoveResizeAdorner();
UpdateResizeAdorner();
}
else
{
if (_rubberbandAdorner != null)
{
_rubberbandAdorner.EndPoint = position;
}
UpdateSelection(_originMouseStartPoint, position);
e.Handled = true;
}
break;
case false:
if (!_isSelecting)
{
if (!_drawingCanvas.IsMouseCaptured)
{
_drawingCanvas.CaptureMouse();
}
// create rubberband adorner
AdornerLayer adornerLayer = AdornerLayer.GetAdornerLayer(this);
if (adornerLayer != null)
{
_rubberbandAdorner = new RubberbandAdorner(_drawingCanvas, _originMouseStartPoint);
adornerLayer.Add(_rubberbandAdorner);
}
}
e.Handled = true;
_dragging = true;
break;
}
}
}
/// <summary>
/// Invoked when an unhandled <see cref="E:System.Windows.Input.Mouse.MouseMove"/> attached event
/// reaches an element in its route that is derived from this class.
/// Implement this method to add class handling for this event.
/// </summary>
/// <param name="e">The <see cref="T:System.Windows.Input.MouseEventArgs"/> that contains the event data.</param>
protected override void OnMouseMove(MouseEventArgs e)
{
base.OnMouseMove(e);
// if mouse button is not pressed we have no drag operation, ...
if (e.LeftButton != MouseButtonState.Pressed)
{
this.rubberbandSelectionStartPoint = null;
}
else if (this.rubberbandSelectionStartPoint.HasValue) // ... but if mouse button is pressed and start
// point value is set we do have one
{
// create rubberband adorner
AdornerLayer adornerLayer = AdornerLayer.GetAdornerLayer(this);
if (adornerLayer != null)
{
RubberbandAdorner adorner = new RubberbandAdorner(this, rubberbandSelectionStartPoint);
if (adorner != null)
{
adornerLayer.Add(adorner);
}
}
e.Handled = true;
}
}
protected override void OnMouseMove(MouseEventArgs e)
{
base.OnMouseMove(e);
if(SourceConnector != null)
{
if (e.LeftButton == MouseButtonState.Pressed)
{
Point currentPoint = e.GetPosition(this);
_partialConnection.SinkConnectorInfo = new PartCreatedConnectionInfo(currentPoint);
HitTesting(currentPoint);
}
}
else
{
if (e.LeftButton != MouseButtonState.Pressed)
_rubberbandSelectionStartPoint = null;
if (_rubberbandSelectionStartPoint.HasValue)
{
AdornerLayer adornerLayer = AdornerLayer.GetAdornerLayer(this);
if (adornerLayer != null)
{
RubberbandAdorner adorner = new RubberbandAdorner(this, _rubberbandSelectionStartPoint);
adornerLayer.Add(adorner);
}
}
}
e.Handled = true;
}
