Example #1
0
        /// <summary>
        /// Pass mouse up to appropriate item
        /// </summary>
        /// <param name="e"></param>
        public override bool OnMouseUp(VCItem sender, ItemMouseEventArgs e)
        {
            var pt = e.Location;

            if (mouseDownPlacement != null)
            {
                try
                {
                    var localPt = mouseDownPlacement.ToLocal(pt);
                    return(mouseDownPlacement.Item.OnMouseUp(new ItemMouseEventArgs(e, localPt.X, localPt.Y)));
                }
                finally
                {
                    mouseDownPlacement = null;
                }
            }
            else
            {
                VCItemPlacement placement = null;
                while ((placement = container.Items.Find(pt, placement)) != null)
                {
                    var localPt = placement.ToLocal(pt);
                    if (placement.Item.OnMouseUp(new ItemMouseEventArgs(e, localPt.X, localPt.Y)))
                    {
                        return(true);
                    }
                }
                return(base.OnMouseUp(sender, e));
            }
        }
Example #2
0
        /// <summary>
        /// Pass mouse move to appropriate item
        /// </summary>
        /// <param name="e"></param>
        public override bool OnMouseMove(VCItem sender, ItemMouseEventArgs e)
        {
            var pt = e.Location;

            if (mouseDownPlacement != null)
            {
                // Mouse button down, always send events to same placement
                var localPt = mouseDownPlacement.ToLocal(pt);
                return(mouseDownPlacement.Item.OnMouseMove(new ItemMouseEventArgs(e, localPt.X, localPt.Y)));
            }
            else
            {
                VCItemPlacement placement = container.Items.Find(pt, null);

                // Handle mouse leave
                if ((mouseOverPlacement != null) && (mouseOverPlacement != placement))
                {
                    mouseOverPlacement.Item.OnMouseLeave(EventArgs.Empty);
                    mouseOverPlacement = null;
                }

                while (placement != null)
                {
                    // Convert point to local
                    var localPt = placement.ToLocal(pt);

                    // Handle mouse enter
                    if (mouseOverPlacement == null)
                    {
                        mouseOverPlacement = placement;
                        mouseOverPlacement.Item.OnMouseEnter(EventArgs.Empty);
                    }

                    // Send mouse move
                    mouseOverPlacement = placement;
                    if (placement.Item.OnMouseMove(new ItemMouseEventArgs(e, localPt.X, localPt.Y)))
                    {
                        return(true);
                    }

                    placement = container.Items.Find(pt, placement);
                    if ((placement != mouseOverPlacement) && (placement != null))
                    {
                        mouseOverPlacement.Item.OnMouseLeave(EventArgs.Empty);
                        mouseOverPlacement = null;
                    }
                }
                return(base.OnMouseMove(sender, e));
            }
        }
Example #3
0
        /// <summary>
        /// Occurs when a drag-and-drop operation is completed.
        /// </summary>
        /// <param name="e"></param>
        public override bool OnDragDrop(VCItem sender, ItemDragEventArgs e)
        {
            var             pt        = new Point(e.X, e.Y);
            VCItemPlacement placement = null;

            while ((placement = container.Items.Find(pt, placement)) != null)
            {
                Point localPt = placement.ToLocal(pt);
                if (placement.Item.OnDragDrop(new ItemDragEventArgs(e, localPt.X, localPt.Y)))
                {
                    return(true);
                }
            }
            return(base.OnDragDrop(sender, e));
        }
Example #4
0
        /// <summary>
        /// Pass mouse double click to appropriate item
        /// </summary>
        /// <param name="e"></param>
        public override bool OnMouseDoubleClick(VCItem sender, ItemMouseEventArgs e)
        {
            var             pt        = e.Location;
            VCItemPlacement placement = null;

            while ((placement = container.Items.Find(pt, placement)) != null)
            {
                var localPt = placement.ToLocal(pt);
                if (placement.Item.OnMouseDoubleClick(new ItemMouseEventArgs(e, localPt.X, localPt.Y)))
                {
                    return(true);
                }
            }
            return(base.OnMouseDoubleClick(sender, e));
        }
Example #5
0
        /// <summary>
        /// Occurs when an object is dragged over the item's bounds.
        /// </summary>
        /// <param name="e"></param>
        public override bool OnDragOver(VCItem sender, ItemDragEventArgs e)
        {
            var             pt        = new Point(e.X, e.Y);
            VCItemPlacement placement = container.Items.Find(pt, null);

            // Handle drag leave
            if ((dragOverPlacement != null) && (dragOverPlacement != placement))
            {
                dragOverPlacement.Item.OnDragLeave(EventArgs.Empty);
                dragOverPlacement = null;
            }

            while (placement != null)
            {
                // Convert point to local
                Point localPt = placement.ToLocal(pt);

                // Handle drag enter
                if (dragOverPlacement == null)
                {
                    dragOverPlacement = placement;
                    dragOverPlacement.Item.OnDragEnter(EventArgs.Empty);
                }

                // Send drag over
                dragOverPlacement = placement;
                if (placement.Item.OnDragOver(new ItemDragEventArgs(e, localPt.X, localPt.Y)))
                {
                    return(true);
                }

                placement = container.Items.Find(pt, placement);
                if ((placement != dragOverPlacement) && (placement != null))
                {
                    dragOverPlacement.Item.OnDragLeave(EventArgs.Empty);
                    dragOverPlacement = null;
                }
            }

            return(base.OnDragOver(sender, e));
        }