Ejemplo n.º 1
0
        private void PaintFigure(ShapeFigure shape)
        {
            InterpolationMode oldmode = Graphics.InterpolationMode;

            Graphics.InterpolationMode = InterpolationMode.NearestNeighbor;

            using (Image smallImg = CreateShapeImage(shape, shape.VirtualBounds, shape.BorderWidth * shape.Zoom))
                using (Image virtualImg = ImageHelper.ReSizeImage(smallImg, shape.VirtualBounds.Width, shape.VirtualBounds.Height))
                    using (ImageAttributes imgAttri = new ImageAttributes())
                    {
                        imgAttri.SetColorKey((Color)shape.TranColor, (Color)shape.TranColor);
                        Graphics.DrawImage(virtualImg, shape.VirtualBounds, 0, 0, shape.VirtualBounds.Width, shape.VirtualBounds.Height, GraphicsUnit.Pixel, imgAttri);
                        Graphics.InterpolationMode = oldmode;
                    }
        }
Ejemplo n.º 2
0
        private static Image CreateShapeImage(ShapeFigure shape, Rectangle innbounds, int borderwidth)
        {
            innbounds.Width  = innbounds.Width < shape.Zoom ? shape.Zoom : innbounds.Width;
            innbounds.Height = innbounds.Height < shape.Zoom ? shape.Zoom : innbounds.Height;
            Rectangle adjRect = new Rectangle(0, 0, innbounds.Width, innbounds.Height);
            int       w       = adjRect.Width / shape.Zoom < 1 ? 1 : adjRect.Width / shape.Zoom;
            int       h       = adjRect.Height / shape.Zoom < 1 ? 1 : adjRect.Height / shape.Zoom;

            using (Image img = new Bitmap(innbounds.Width + 1, innbounds.Height + 1))
            {
                using (Graphics g = Graphics.FromImage(img))
                    PaintFigure(g, adjRect, shape, borderwidth);
                return(ImageHelper.ReSizeImage(img, w, h));
            }
        }
Ejemplo n.º 3
0
        private static void PaintFigure(Graphics g, RectangleF innbounds, ShapeFigure shape, int borderwidth)
        {
            using (GraphicsPath gp = new GraphicsPath())
            {
                switch (shape.Type)
                {
                case ShapeType.Rectangle:
                    gp.AddRectangle(ShapePaintHelper.GetNormalizedRectangle(Rectangle.Round(innbounds)));
                    break;

                case ShapeType.Ellipse:
                    gp.AddEllipse(ShapePaintHelper.GetNormalizedRectangle(Rectangle.Round(innbounds)));
                    break;

                case ShapeType.UpArrow:
                    gp.AddPolygon(Rect2PointFArray(Rectangle.Round(innbounds), ArrowDirection.Up));
                    break;

                case ShapeType.DownArrow:
                    gp.AddPolygon(Rect2PointFArray(Rectangle.Round(innbounds), ArrowDirection.Down));
                    break;

                case ShapeType.RightArrow:
                    gp.AddPolygon(Rect2PointFArray(Rectangle.Round(innbounds), ArrowDirection.Right));
                    break;

                case ShapeType.LeftArrow:
                    gp.AddPolygon(Rect2PointFArray(Rectangle.Round(innbounds), ArrowDirection.Left));
                    break;

                default:
                    return;
                }
                if (shape.Filled)
                {
                    g.FillPath(ResourceCache.DefaultCache.GetSolidBrush(shape.FillColor), gp);
                }

                using (Pen pen = ResourceCache.DefaultCache.GetPen(shape.BorderColor, borderwidth, PenAlignment.Inset, shape.LineDashStyle))
                    g.DrawPath(pen, gp);
            }
        }