LibRdlCrossPlatformViewer.PageDrawing.ProcessPage C# (CSharp) Method

        private void ProcessPage(System.Drawing.Graphics g, IEnumerable p)
        {
            // TODO: (Peter) Support can grow and can shrink
            foreach (PageItem pi in p)
            {
                if (pi is PageTextHtml)
                {	// PageTextHtml is actually a composite object (just like a page)
                    ProcessHtml(pi as PageTextHtml, g);
                    continue;
                }

                if (pi is PageLine)
                {
                    PageLine pl = pi as PageLine;
                    DrawLine(pl.SI.BColorLeft, pl.SI.BStyleLeft, pl.SI.BWidthLeft,
                        g, PixelsX(pl.X + _left - _hScroll), PixelsY(pl.Y + _top - _vScroll),
                        PixelsX(pl.X2 + _left - _hScroll), PixelsY(pl.Y2 + _top - _vScroll));
                    continue;
                }

                RectangleF rect = new RectangleF(PixelsX(pi.X + _left - _hScroll), PixelsY(pi.Y + _top - _vScroll),
                                                                    PixelsX(pi.W), PixelsY(pi.H));

                if ((pi is PagePolygon) || (pi is PageCurve))
                { // intentionally empty; polygon's rectangles aren't calculated
                }

                if (pi.SI.BackgroundImage != null)
                {	// put out any background image
                    PageImage i = pi.SI.BackgroundImage;
                    DrawImageBackground(i, pi.SI, g, rect);
                }

                if (pi is PageText)
                {
                    // TODO: enable can shrink, can grow
                    // 2005 spec file, page 9, in the text box has
                    // CanGrow and CanShrink
                    PageText pt = pi as PageText;
                    DrawString(pt, g, rect);
                }
                else if (pi is PageImage)
                {
                    PageImage i = pi as PageImage;
                    DrawImage(i, g, rect);
                }
                else if (pi is PageRectangle)
                {
                    this.DrawBackground(g, rect, pi.SI);
                }
                else if (pi is PageEllipse)
                {
                    PageEllipse pe = pi as PageEllipse;
                    DrawEllipse(pe, g, rect);
                }
                else if (pi is PagePie)
                {
                    PagePie pp = pi as PagePie;
                    DrawPie(pp, g, rect);
                }
                else if (pi is PagePolygon)
                {
                    PagePolygon ppo = pi as PagePolygon;
                    FillPolygon(ppo, g, rect);
                }
                else if (pi is PageCurve)
                {
                    PageCurve pc = pi as PageCurve;
                    DrawCurve(pc.SI.BColorLeft, pc.SI.BStyleLeft, pc.SI.BWidthLeft,
                        g, pc.Points, pc.Offset, pc.Tension);
                }

                DrawBorder(pi, g, rect);
            }

            // TO: convert System.Drawing.Graphics to Xwt.Drawing.Context and draw it to this.g

            Bitmap bm = new Bitmap(gImg.Width, gImg.Height, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
            g.DrawImage(bm, gImg.Width, gImg.Height);

            // Xwt.Drawing.Image.FromStream does not work.  It crashes with both wpf and gtk
            // As a work around save the image to a temporary file and load it into xwt using the
            // FromFile method.

            System.IO.MemoryStream s = new System.IO.MemoryStream();
            gImg.Save(s, System.Drawing.Imaging.ImageFormat.Png);
            Xwt.Drawing.Image img = Xwt.Drawing.Image.FromStream(s);

            xwtContext.DrawImage(img, new Xwt.Rectangle(0, 0, gImg.Width, gImg.Height), new Xwt.Rectangle(0, 0, gImg.Width, gImg.Height));
            img.Dispose();
        }