void AssociatedObject_MouseLeftButtonDown(object sender, System.Windows.Input.MouseButtonEventArgs e)
        {
            Point point = e.GetPosition(rect);

            hitPoint = RectangleHelper.HitTest(point, rect);

            if (canvas == null)
            {
                canvas = (Canvas)VisualTreeHelper.GetParent(this.AssociatedObject);
            }

            FrameworkElement element = AssociatedObject as FrameworkElement;

            if (hitPoint != HitPoint.None)
            {
                height = rect.ActualHeight;
                width  = rect.ActualWidth;

                rect.Stroke = new SolidColorBrush(Color);
                if (rect.StrokeThickness <= 0 && Thickness > 0)
                {
                    rect.StrokeThickness = Thickness;
                }

                isDragging   = true;
                mouseOffset  = e.GetPosition(AssociatedObject);
                mouseOffset2 = e.GetPosition(canvas);
                AssociatedObject.CaptureMouse();
            }
            else
            {
                rect.Stroke          = borderBrush;
                rect.StrokeThickness = borderThickness;
            }
        }
Esempio n. 2
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        void AssociatedObject_MouseLeftButtonDown(object sender, System.Windows.Input.MouseButtonEventArgs e)
        {
            if (e.ClickCount > 1)
            {
                return;
            }
            if (canvas == null)
            {
                canvas = (Canvas)VisualTreeHelper.GetParent(this.AssociatedObject);
            }
            rect = GetRectangle(AssociatedObject);
            Point    point    = e.GetPosition(rect);
            HitPoint hitPoint = RectangleHelper.HitTest(point, rect);

            if (hitPoint == HitPoint.Center || hitPoint == HitPoint.None)
            {
                isDragging  = true;
                mouseOffset = e.GetPosition(AssociatedObject);
                AssociatedObject.CaptureMouse();
            }
        }
        void AssociatedObject_MouseMove(object sender, System.Windows.Input.MouseEventArgs e)
        {
            Rectangle        rect    = GetRectangle(AssociatedObject);
            FrameworkElement element = AssociatedObject as FrameworkElement;

            if (element.Width < 10 || element.Height < 10)
            {
                return;
            }
            Point point = e.GetPosition(element);

            if (isDragging)
            {
                isChanged = false;
                double newWidth  = width;
                double newHeight = height;

                if (hitPoint == HitPoint.Right)
                {
                    newWidth = point.X + 1;
                }
                else if (hitPoint == HitPoint.Bottom)
                {
                    newHeight = point.Y + 1;
                }
                else
                {
                    Canvas canvas = (Canvas)VisualTreeHelper.GetParent(AssociatedObject);
                    Point  point2 = e.GetPosition(canvas);
                    if (hitPoint == HitPoint.Top)
                    {
                        AssociatedObject.SetValue(Canvas.TopProperty, point2.Y - mouseOffset.Y);
                        newHeight = height - (point2.Y - mouseOffset2.Y);
                        isChanged = true;
                    }
                    else if (hitPoint == HitPoint.Left)
                    {
                        AssociatedObject.SetValue(Canvas.LeftProperty, point2.X - mouseOffset.X);
                        newWidth  = width - (point2.X - mouseOffset2.X);
                        isChanged = true;
                    }
                }
                if (newHeight != height && newHeight > 10)
                {
                    SetHeight(element, newHeight);
                    isChanged = true;
                }
                if (newWidth != width && newWidth > 10)
                {
                    SetWidth(element, newWidth);
                    isChanged = true;
                }
                if (isChanged)
                {
                    OnSizeChanged(element, false);
                }
            }
            else
            {
                hitPoint = RectangleHelper.HitTest(point, rect);
                if (hitPoint != HitPoint.None)
                {
                    rect.Stroke = new SolidColorBrush(Color);
                    if (rect.StrokeThickness <= 0 && Thickness > 0)
                    {
                        rect.StrokeThickness = Thickness;
                    }
                }
                else
                {
                    rect.Stroke          = borderBrush;
                    rect.StrokeThickness = borderThickness;
                }
            }

            RectangleHelper.SetCursor(hitPoint);
        }