Ejemplo n.º 1
0
        private void DrawImageSized(PageImage pi, Xwt.Drawing.Image im, Xwt.Drawing.Context g, Xwt.Rectangle r)
        {
            double height, width;      // some work variables
            StyleInfo si = pi.SI;

            Xwt.Rectangle r2 = new Xwt.Rectangle(r.X + PixelsX(si.PaddingLeft),
                                                      r.Y + PixelsY(si.PaddingTop),
                                                      r.Width - PixelsX(si.PaddingLeft + si.PaddingRight),
                                                      r.Height - PixelsY(si.PaddingTop + si.PaddingBottom));

            Xwt.Rectangle ir;   // int work rectangle
            switch (pi.Sizing)
            {
                case ImageSizingEnum.AutoSize:

                    float imwidth = PixelsX( (float)im.Size.Width);
                    float imheight = PixelsX( (float)im.Size.Height);
                    ir = new Xwt.Rectangle(Convert.ToInt32(r2.X), Convert.ToInt32(r2.Y),
                                                    imwidth, imheight);

                    im.Scale((int)r2.Width, (int)r2.Height);
                    g.DrawImage(im, ir);

                    break;
                case ImageSizingEnum.Clip:
                    g.Save();
                    g.Rectangle(r2);
                    g.Clip();

                    ir = new Xwt.Rectangle(Convert.ToInt32(r2.X), Convert.ToInt32(r2.Y),
                                                    im.Size.Width, im.Size.Height);

                    g.DrawImage(im, ir);
                    g.Restore();
                    break;
                case ImageSizingEnum.FitProportional:
                    double ratioIm = (float)im.Size.Height / (float)im.Size.Width;
                    double ratioR = r2.Height / r2.Width;
                    height = r2.Height;
                    width = r2.Width;
                    if (ratioIm > ratioR)
                    {
                        // this means the rectangle width must be corrected
                        width = height * (1 / ratioIm);
                    }
                    else if (ratioIm < ratioR)
                    {
                        // this means the ractangle height must be corrected
                        height = width * ratioIm;
                    }
                    r2 = new Xwt.Rectangle(r2.X, r2.Y, width, height);
                    g.DrawImage(im, r2);
                    break;
                case ImageSizingEnum.Fit:
                default:
                    g.DrawImage(im, r2);
                    break;
            }
        }
Ejemplo n.º 2
0
        public virtual void Texts(Xwt.Drawing.Context ctx, double x, double y)
        {
            ctx.Save ();

            ctx.Translate (x, y);

            ctx.SetColor (Colors.Black);

            var col1 = new Rectangle ();
            var col2 = new Rectangle ();

            var text = new TextLayout ();
            text.Font = this.Font.WithSize (24);
            Console.WriteLine (text.Font.Size);

            // first text
            text.Text = "Lorem ipsum dolor sit amet,";
            var size1 = text.GetSize ();
            col1.Width = size1.Width;
            col1.Height += size1.Height + 10;
            ctx.DrawTextLayout (text, 0, 0);

            // proofing width; test should align with text above
            ctx.SetColor (Colors.DarkMagenta);
            text.Text = "consetetur sadipscing elitr, sed diam nonumy";
            text.Width = col1.Width;
            var size2 = text.GetSize ();

            ctx.DrawTextLayout (text, 0, col1.Bottom);
            col1.Height += size2.Height + 10;

            ctx.SetColor (Colors.Black);

            // proofing scale, on second col
            ctx.Save ();
            ctx.SetColor (Colors.Red);
            col2.Left = col1.Right + 10;

            text.Text = "eirmod tempor invidunt ut.";

            var scale = 1.2;
            text.Width = text.Width / scale;
            var size3 = text.GetSize ();
            col2.Height = size3.Height * scale;
            col2.Width = size3.Width * scale + 5;
            ctx.Scale (scale, scale);
            ctx.DrawTextLayout (text, col2.Left / scale, col2.Top / scale);
            ctx.Restore ();

            // proofing heigth, on second col
            ctx.Save ();
            ctx.SetColor (Colors.DarkCyan);
            text.Text = "Praesent ac lacus nec dolor pulvinar feugiat a id elit.";
            var size4 = text.GetSize ();
            text.Height = size4.Height / 2;
            text.Trimming=TextTrimming.WordElipsis;
            ctx.DrawTextLayout (text, col2.Left, col2.Bottom + 5);

            ctx.SetLineWidth (1);
            ctx.SetColor (Colors.Blue);
            ctx.Rectangle (new Rectangle (col2.Left, col2.Bottom + 5, text.Width, text.Height));
            ctx.Stroke();
            ctx.Restore ();

            // drawing col line
            ctx.SetLineWidth (1);

            ctx.SetColor (Colors.Black.WithAlpha (.5));
            ctx.MoveTo (col1.Right + 5, col1.Top);
            ctx.LineTo (col1.Right + 5, col1.Bottom);
            ctx.Stroke ();
            ctx.MoveTo (col2.Right + 5, col2.Top);
            ctx.LineTo (col2.Right + 5, col2.Bottom);
            ctx.Stroke ();
            ctx.SetColor (Colors.Black);

            // proofing rotate, and printing size to see the values
            ctx.Save ();

            text.Font = this.Font.WithSize (10);
            text.Text = string.Format ("Size 1 {0}\r\nSize 2 {1}\r\nSize 3 {2} Scale {3}",
                                       size1, size2, size3, scale);
            text.Width = -1; // this clears textsize
            text.Height = -1;
            ctx.Rotate (5);
            // maybe someone knows a formula with angle and textsize to calculyte ty
            var ty = 30;
            ctx.DrawTextLayout (text, ty, col1.Bottom + 10);

            ctx.Restore ();

            // scale example here:

            ctx.Restore ();

            TextLayout tl0 = new TextLayout (this);

            tl0.Font = this.Font.WithSize (10);
            tl0.Text = "This text contains attributes.";
            tl0.SetUnderline ( 0, "This".Length);
            tl0.SetForeground (new Color (0, 1.0, 1.0), "This ".Length, "text".Length);
            tl0.SetBackground (new Color (0, 0, 0), "This ".Length, "text".Length);
            tl0.SetFontWeight (FontWeight.Bold, "This text ".Length, "contains".Length);
            tl0.SetFontStyle (FontStyle.Italic, "This text ".Length, "contains".Length);
            tl0.SetStrikethrough ("This text contains ".Length, "attributes".Length);

            ctx.SetColor(Colors.DarkGreen);
            ctx.DrawTextLayout (tl0, col2.Left, col2.Bottom + 100);

            // Text boces

            y = 180;

            // Without wrapping

            TextLayout tl = new TextLayout (this);
            tl.Text = "Stright text";
            DrawText (ctx, tl, ref y);

            // With wrapping

            tl = new TextLayout (this);
            tl.Text = "The quick brown fox jumps over the lazy dog";
            tl.Width = 100;
            DrawText (ctx, tl, ref y);

            // With blank lines

            tl = new TextLayout (this);
            tl.Text = "\nEmpty line above\nLine break above\n\nEmpty line above\n\n\nTwo empty lines above\nEmpty line below\n";
            tl.Width = 200;
            DrawText (ctx, tl, ref y);
        }