private void RegisterHandles()
{
UIResizeOperationHandleConnector = new UIResizeOperationHandleConnector(CanvasItem, FrameOfReference, SnappingEngine);
WindowsSizeCursorsThumbCursorConverter = new WindowsSizeCursorsThumbCursorConverter();
var thumbContainer = (UIElement)Template.FindName("PART_ThumbContainer", this);
var enumerable = LogicalTreeHelper.GetChildren(thumbContainer);
var logicalChildren = enumerable.OfType <FrameworkElement>();
foreach (var logicalChild in logicalChildren)
{
var rectRelativeToParent = Mapper.Map <Rect>(logicalChild.GetRectRelativeToParent());
var childRect = rectRelativeToParent;
var parentRect = Mapper.Map <Rect>(CanvasItem.Rect());
var handlePoint = childRect.GetHandlePoint(parentRect.Size);
var uiElement = new UIElementAdapter(logicalChild);
UIResizeOperationHandleConnector.RegisterHandle(uiElement, handlePoint);
SetCursorToHandle(logicalChild);
}
}
private void RegisterHandles()
{
UIResizeOperationHandleConnector = new UIResizeOperationHandleConnector(CanvasItem, FrameOfReference,
SnappingEngine);
var thumbContainer = (UIElement)FindName("PART_ThumbContainer");
Debug.Assert(thumbContainer != null, "ThumbContainer part not found!");
var visualChildren = new List <DependencyObject>();
for (var i = 0; i < VisualTreeHelper.GetChildrenCount(thumbContainer); i++)
{
visualChildren.Add(VisualTreeHelper.GetChild(thumbContainer, i));
}
var logicalChildren = visualChildren.OfType <FrameworkElement>();
foreach (var logicalChild in logicalChildren)
{
var childRect = this.GetRectRelativeToParent(logicalChild);
var parentRect = CanvasItem.Rect();
var handlePoint = childRect.GetHandlePoint(parentRect.Size);
UIResizeOperationHandleConnector.RegisterHandle(new UIElementAdapter(logicalChild), handlePoint);
}
}
public ResizeOperation(ICanvasItem child, IPoint handlePoint, ISnappingEngine snappingEngine)
{
Child = child;
HandlePoint = handlePoint;
SetCanResize(child, handlePoint);
Opposite = HandlePoint.GetOpposite(child.Rect().MiddlePoint());
SnappingEngine = snappingEngine;
this.recordingScope = RecordingServices.DefaultRecorder.OpenScope(string.Format( "Resize {0}", this.child.GetName() ));
}
public ResizeOperation(ICanvasItem child, IPoint handlePoint, ISnappingEngine snappingEngine)
{
Child = child;
HandlePoint = handlePoint;
SetCanResize(child, handlePoint);
Opposite = HandlePoint.GetOpposite(child.Rect().MiddlePoint());
SnappingEngine = snappingEngine;
this.recordingScope = RecordingServices.DefaultRecorder.OpenScope(string.Format("Resize {0}", this.child.GetName()));
}
public ResizeOperation(ICanvasItem child, IPoint handlePoint, ISnappingEngine snappingEngine)
{
Child = child;
HandlePoint = handlePoint;
SetCanResize(child, handlePoint);
Opposite = HandlePoint.GetOpposite(child.Rect().MiddlePoint());
SnappingEngine = snappingEngine;
this.recordingScope = CanvasModelItem.Recorder.StartAtomicScope("Resize", false);
}
private void SetCanResize(ICanvasItem canvasItem, IPoint handlePoint)
{
var rect = canvasItem.Rect();
var middlePoint = rect.MiddlePoint();
var distanceX = Math.Abs(middlePoint.X - handlePoint.X);
var distanceY = Math.Abs(middlePoint.Y - handlePoint.Y);
double delta = 0.3;
CanChangeHorizontalPosition = distanceX > delta*canvasItem.Width;
CanChangeVerticalPosition = distanceY > delta * canvasItem.Height;
}
private void SetCanResize(ICanvasItem canvasItem, IPoint handlePoint)
{
var rect = canvasItem.Rect();
var middlePoint = rect.MiddlePoint();
var distanceX = Math.Abs(middlePoint.X - handlePoint.X);
var distanceY = Math.Abs(middlePoint.Y - handlePoint.Y);
double delta = 0.3;
CanChangeHorizontalPosition = distanceX > delta * canvasItem.Width;
CanChangeVerticalPosition = distanceY > delta * canvasItem.Height;
}