Canguro.Controller.Tracking.HoverPainter.MeasureText C# (CSharp) Метод

        public Rectangle MeasureText(string text)
        {
            // Get the resource cache because the Font is needed
            Canguro.View.ResourceManager rc = GraphicViewManager.Instance.ResourceManager;

            // Get bounding rectangle
            return rc.LabelFont.MeasureString(null, text, DrawTextFormat.Left, GraphicViewManager.Instance.PrintingHiResImage ? Color.Black : Color.White);
        }

        internal bool MouseMove(GraphicView activeView, System.Windows.Forms.MouseEventArgs e)
        {
            bool needPaint = false;
            Item newHover  = pickItem(e);

            if (hoverItem != newHover)
            {
                if (!showingTooltip)
                {
                    if (newHover != null)
                    {
                        timer.Change(TooltipDelay, System.Threading.Timeout.Infinite);
                    }
                    else
                    {
                        timer.Change(System.Threading.Timeout.Infinite, System.Threading.Timeout.Infinite);
                    }
                }
                else
                {
                    if (newHover == null)
                    {
                        timer.Change(TooltipDelay, System.Threading.Timeout.Infinite);
                    }
                    else
                    {
                        timer.Change(System.Threading.Timeout.Infinite, System.Threading.Timeout.Infinite);
                    }
                }
            }

            if (hoverItem != null || hoverItem != newHover)
            {
                needPaint = true;
            }

            hoverItem = newHover;

            Model.Model model = Model.Model.Instance;
            View.Renderer.RenderOptions options = activeView.ModelRenderer.RenderOptions;

            // Get position in the item's local coordinate system
            if (hoverItem is Joint)
            {
                hoverPos = getHoverPos((Joint)hoverItem, model, options);
            }
            else if (hoverItem is LineElement)
            {
                LineElement line = hoverItem as LineElement;

                if (options.ShowDeformed)
                {
                    hoverPos = getHoverPos(line, activeView, e.Location, model, options);
                }
                else
                {
                    Snap.LineMagnet lm = new Canguro.Controller.Snap.LineMagnet(line);
                    lm.Snap(activeView, e.Location);
                    hoverPos  = lm.SnapPositionInt;
                    hoverXPos = (hoverPos - line.I.Position).Length() / line.LengthInt;
                }
            }

            // Get text to draw
            tooltipText = itemTextBuilder.GetItemText(hoverItem, hoverPos, hoverXPos);

            // Get Size of text
            if (!string.IsNullOrEmpty(tooltipText))
            {
                tooltipRectangle = hoverPainter.MeasureText(tooltipText);
#if DEBUG
                if (tooltipRectangle.Width == 0 || tooltipRectangle.Height == 0)
                {
                    throw new Exception("Measure String returned 0");
                }
#endif
                tooltipRectangle.Location += deltaRect;
                tooltipRectangle.X        += e.X;
                tooltipRectangle.Y        += e.Y;
                tooltipRectangle.Width    += 8;
                tooltipRectangle.Height   += 4;

                Viewport vp = activeView.Viewport;
                if (tooltipRectangle.Right > (vp.X + vp.Width))
                {
                    tooltipRectangle.X -= (tooltipRectangle.Width + 2 * deltaRect.Width);
                }

                rectHelper.MouseMove(activeView, tooltipRectangle.Location, tooltipRectangle.Location + tooltipRectangle.Size);
            }
            else if (!showingTooltip)
            {
                timer.Change(System.Threading.Timeout.Infinite, System.Threading.Timeout.Infinite);
            }

            return(showingTooltip || needPaint);
        }