private void DrawLineCanvasGrid_PreviewMouseRightButtonDown(object sender, MouseButtonEventArgs e)
{
CanvasGrid.ReleaseMouseCapture();
CanvasGrid.MouseMove -= DrawLineCanvasGrid_PreviewMouseMove;
CanvasGrid.PreviewMouseRightButtonDown -= DrawLineCanvasGrid_PreviewMouseRightButtonDown;
CanvasGrid.PreviewMouseLeftButtonDown -= DrawLineCanvasGrid_PreviewMouseLeftButtonDown;
CanvasGrid.PreviewMouseLeftButtonDown += CanvasGrid_PreviewMouseLeftButtonDown;
MoveRadioButton.IsChecked = true;
TestPolyline.Points.RemoveAt(TestPolyline.Points.Count - 1);
foreach (Point point in TestPolyline.Points)
{
_polylinePositionings.Add(TranformPositioning(point) - _offsetPositioning);
}
var gridIndexes = GridHelper.GetPolylineGrindIndex(_polylinePositionings).OrderBy(p => p.Index1).ThenBy(p => p.Index2).ThenBy(p => p.Index3).ThenBy(p => p.Index4);
foreach (var gridIndex in gridIndexes)
{
_gridIndexes.Add(gridIndex);
}
DrawGrid();
_isDrawing = false;
}
/// <summary>
/// 释放拖放
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void Grid_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
{
var data = Helper.DragDrop.GetData();
if (data is System.Windows.Controls.Primitives.Popup)
{
var pop = data as System.Windows.Controls.Primitives.Popup;
var unit = pop.Child as Elements.Unit;
if (unit != null)
{
pop.Child = null;
unit.Position = CanvasGrid.CheckPosition(e.GetPosition(CanvasGrid.BackCanvas));
var el = CanvasGrid.GetElement(unit.Position);
//必须是当前位置无元素方可放置
if (!(el is Elements.Unit))
{
CanvasGrid.AddElement(unit);
BindMenu();//绑定菜单
}
}
pop.IsOpen = false;
Helper.DragDrop.Clear();
StopDrag();
}
}
private void DrawPoint()
{
CanvasGrid.ReleaseMouseCapture();
_ellipsePositioning = TranformPositioning(_originPoint) - _offsetPositioning;
TestEllipse.Opacity = 1d;
TestEllipse.Width = TestEllipse.Height = _level * 4d;
Canvas.SetLeft(TestEllipse, _originPoint.X - _level * 2d);
Canvas.SetTop(TestEllipse, _originPoint.Y - _level * 2d);
MoveRadioButton.IsChecked = true;
_gridIndexes.Add(GridHelper.GetPointGridIndex(_ellipsePositioning));
DrawGrid();
}
private void CanvasGrid_PreviewMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
CanvasGrid.CaptureMouse();
_originPoint = e.GetPosition(RootCanvas);
switch (_operation)
{
case 0:
CanvasGrid.MouseMove -= MoveCanvasGrid_PreviewMouseMove;
CanvasGrid.MouseMove += MoveCanvasGrid_PreviewMouseMove;
CanvasGrid.PreviewMouseLeftButtonUp -= MoveCanvasGrid_PreviewMouseLeftButtonUp;
CanvasGrid.PreviewMouseLeftButtonUp += MoveCanvasGrid_PreviewMouseLeftButtonUp;
break;
case 1:
ResetShape();
DrawPoint();
break;
case 2:
_isDrawing = true;
CanvasGrid.MouseMove -= DrawLineCanvasGrid_PreviewMouseMove;
CanvasGrid.MouseMove += DrawLineCanvasGrid_PreviewMouseMove;
CanvasGrid.PreviewMouseLeftButtonDown -= CanvasGrid_PreviewMouseLeftButtonDown;
CanvasGrid.PreviewMouseLeftButtonDown -= DrawLineCanvasGrid_PreviewMouseLeftButtonDown;
CanvasGrid.PreviewMouseLeftButtonDown += DrawLineCanvasGrid_PreviewMouseLeftButtonDown;
CanvasGrid.PreviewMouseRightButtonDown -= DrawLineCanvasGrid_PreviewMouseRightButtonDown;
CanvasGrid.PreviewMouseRightButtonDown += DrawLineCanvasGrid_PreviewMouseRightButtonDown;
ResetShape();
TestPolyline.Points.Add(_originPoint);
TestPolyline.Points.Add(_originPoint);
break;
case 3:
_isDrawing = true;
CanvasGrid.MouseMove -= DrawPlaneCanvasGrid_PreviewMouseMove;
CanvasGrid.MouseMove += DrawPlaneCanvasGrid_PreviewMouseMove;
CanvasGrid.PreviewMouseLeftButtonDown -= CanvasGrid_PreviewMouseLeftButtonDown;
CanvasGrid.PreviewMouseLeftButtonDown -= DrawPlaneCanvasGrid_PreviewMouseLeftButtonDown;
CanvasGrid.PreviewMouseLeftButtonDown += DrawPlaneCanvasGrid_PreviewMouseLeftButtonDown;
CanvasGrid.PreviewMouseRightButtonDown -= DrawPlaneCanvasGrid_PreviewMouseRightButtonDown;
CanvasGrid.PreviewMouseRightButtonDown += DrawPlaneCanvasGrid_PreviewMouseRightButtonDown;
ResetShape();
TestPolygon.Points.Add(_originPoint);
TestPolygon.Points.Add(_originPoint);
break;
}
}
private void ZoomOut(object sender, RoutedEventArgs e)
{
ScaleTransform scale = Canvas.LayoutTransform as ScaleTransform;
if (scale == null)
{
Canvas.LayoutTransform = scale = new ScaleTransform(1, 1);
}
if (resizer != null)
{
Rect bounds = GetUnscaledBounds(resizer.Bounds);
scale.ScaleX = scale.ScaleY = (scale.ScaleY / 1.1);
CanvasGrid.UpdateLayout();
MoveResizer(selected, bounds);
}
}
private void MoveCanvasGrid_PreviewMouseLeftButtonUp(object sender, MouseButtonEventArgs e)
{
CanvasGrid.ReleaseMouseCapture();
CanvasGrid.MouseMove -= MoveCanvasGrid_PreviewMouseMove;
CanvasGrid.PreviewMouseLeftButtonUp -= MoveCanvasGrid_PreviewMouseLeftButtonUp;
var vector = e.GetPosition(RootCanvas) - _originPoint;
_offsetPositioning += TranformPositioning(vector);
DrawGrid();
GridCanvas.ClearValue(Canvas.LeftProperty);
GridCanvas.ClearValue(Canvas.TopProperty);
ShapCanvas.ClearValue(Canvas.LeftProperty);
ShapCanvas.ClearValue(Canvas.TopProperty);
}
private Rect GetUnscaledBounds(Rect scaledBounds)
{
Rect bounds = CanvasGrid.TransformToDescendant(selected.Content).TransformBounds(scaledBounds);
if (bounds.Left < 0)
{
bounds.Width += bounds.Left;
bounds.X = 0;
}
if (bounds.Top < 0)
{
bounds.Height += bounds.Top;
bounds.Y = 0;
}
return(bounds);
}
/// <summary>
/// 拖放完成
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
void thumb_DragCompleted(object sender, System.Windows.Controls.Primitives.DragCompletedEventArgs e)
{
if (CanvasGrid == null)
{
return;
}
var p = new Point();
p.X = Canvas.GetLeft(this);
if (p.X == double.NaN)
{
p.X = 0;
}
p.Y = Canvas.GetTop(this);
if (p.Y == double.NaN)
{
p.Y = 0;
}
CanvasGrid.CheckCanvasGrid();
//var p = new Point(firstClickPosition.X + e.HorizontalChange, firstClickPosition.Y + e.VerticalChange);
var newp = CanvasGrid.CheckPosition(p);
//如果当前位置已有元素
//则放弃落地
var el = CanvasGrid.GetElement(newp);
if (el == null && newp.X != 0)
{
this.Position = newp;
}
this.Opacity = 1;
//重新定位。
this.ResetPosition();
}
