// Arrange the Adorners.
protected override Size ArrangeOverride(Size finalSize)
{
// desiredWidth and desiredHeight are the width and height of the element that's being adorned.
// These will be used to place the ResizingAdorner at the corners of the adorned element.
double desiredWidth = AdornedElement.DesiredSize.Width;
double desiredHeight = AdornedElement.DesiredSize.Height;
// adornerWidth & adornerHeight are used for placement as well.
double adornerWidth = this.DesiredSize.Width;
double adornerHeight = this.DesiredSize.Height;
switch (m_strelement_prefix)
{
case "DC":
if (AdornedElement.GetType() == typeof(Line) || AdornedElement.GetType() == typeof(Ellipse))
{
if (AdornedElement.GetType() == typeof(Ellipse))
{
contextData = ((List <Point>)((AdornedElement as FrameworkElement).DataContext));
}
Line selectedLine = ((AdornedElement.GetType() == typeof(Ellipse)) && contextData.Count != 0)
? new Line()
{
X1 = contextData[0].X, Y1 = contextData[0].Y, X2 = contextData[1].X, Y2 = contextData[1].Y
}
: (AdornedElement as Line);
double left = Math.Min(selectedLine.X1, selectedLine.X2);
double top = Math.Min(selectedLine.Y1, selectedLine.Y2);
var startRect = new Rect(selectedLine.X1 - (Left.Width / 2), selectedLine.Y1 - (Left.Width / 2), Left.Width, Left.Height);
var endRect = new Rect(selectedLine.X2 - (Right.Width / 2), selectedLine.Y2 - (Right.Height / 2), Right.Width, Right.Height);
Left.Arrange(startRect);
Right.Arrange(endRect);
}
break;
case "RC":
if (AdornedElement.GetType() == typeof(Line) || AdornedElement.GetType() == typeof(Ellipse))
{
if (AdornedElement.GetType() == typeof(Ellipse))
{
contextData = ((List <Point>)((AdornedElement as FrameworkElement).DataContext));
}
Line selectedLine = ((AdornedElement.GetType() == typeof(Ellipse)) && contextData.Count != 0)
? new Line()
{
X1 = contextData[0].X, Y1 = contextData[0].Y, X2 = contextData[1].X, Y2 = contextData[1].Y
}
: (AdornedElement as Line);
double top = Math.Min(selectedLine.Y1, selectedLine.Y2);
var endRect = new Rect(selectedLine.X2 - (Right.Width / 2), selectedLine.Y2 - (Right.Height / 2), Right.Width, Right.Height);
Right.Arrange(endRect);
}
break;
}
return(finalSize);
}
protected override Size ArrangeOverride(Size finalSize)
{
Top.Arrange(new Rect(ActualWidth / 2 - Constants.CornerBoxSize / 2, -Constants.CornerBoxSize, Constants.CornerBoxSize, Constants.CornerBoxSize));
Bottom.Arrange(new Rect(ActualWidth / 2 - Constants.CornerBoxSize / 2, ActualHeight, Constants.CornerBoxSize, Constants.CornerBoxSize));
Left.Arrange(new Rect(-Constants.CornerBoxSize, ActualHeight / 2 - Constants.CornerBoxSize / 2, Constants.CornerBoxSize, Constants.CornerBoxSize));
Right.Arrange(new Rect(ActualWidth, ActualHeight / 2 - Constants.CornerBoxSize / 2, Constants.CornerBoxSize, Constants.CornerBoxSize));
// Return the final size.
return(finalSize);
}
// Arrange the Adorners.
protected override Size ArrangeOverride(Size finalSize)
{
// desiredWidth and desiredHeight are the width and height of the element that's being adorned.
// These will be used to place the ResizingAdorner at the corners of the adorned element.
double desiredWidth = AdornedElement.DesiredSize.Width;
double desiredHeight = AdornedElement.DesiredSize.Height;
// adornerWidth & adornerHeight are used for placement as well.
double adornerWidth = this.DesiredSize.Width;
double adornerHeight = this.DesiredSize.Height;
if (AdornedElement.GetType() == typeof(Line) && AdornedElement.Uid.Contains("DC"))
{
var selectedLine = AdornedElement as Line;
double left = Math.Min(selectedLine.X1, selectedLine.X2);
double top = Math.Min(selectedLine.Y1, selectedLine.Y2);
var startRect = new Rect(selectedLine.X1 - (Left.Width / 2), selectedLine.Y1 - (Left.Width / 2), Left.Width, Left.Height);
Left.Arrange(startRect);
var endRect = new Rect(selectedLine.X2 - (Right.Width / 2), selectedLine.Y2 - (Right.Height / 2), Right.Width, Right.Height);
Right.Arrange(endRect);
}
else if (AdornedElement.GetType() == typeof(Ellipse) && AdornedElement.Uid.Contains("DC"))
{
FrameworkElement adornedElement = AdornedElement as FrameworkElement;
List <Point> elipsendPoints = ((List <Point>)(adornedElement.DataContext));
if (elipsendPoints.Count == 0)
{
return(finalSize);
}
Line selectedLine = new Line()
{
X1 = elipsendPoints[0].X, Y1 = elipsendPoints[0].Y, X2 = elipsendPoints[1].X, Y2 = elipsendPoints[1].Y
};
double left = Math.Min(selectedLine.X1, selectedLine.X2);
double top = Math.Min(selectedLine.Y1, selectedLine.Y2);
var startRect = new Rect(selectedLine.X1 - (Left.Width / 2), selectedLine.Y1 - (Left.Width / 2), Left.Width, Left.Height);
var endRect = new Rect(selectedLine.X2 - (Right.Width / 2), selectedLine.Y2 - (Right.Height / 2), Right.Width, Right.Height);
Left.Arrange(startRect);
Right.Arrange(endRect);
}
// Return the final size.
return(finalSize);
}
