C# XMatrix.RotateAtPrepend方法代码示例

 /// <summary>
 /// Applies the specified rotation operation to the transformation matrix of this object by 
 /// prepending it to the object's transformation matrix.
 /// </summary>
 public void RotateAtTransform(double angle, XPoint point)
 {
   //RotateAtTransform(angle, point, XMatrixOrder.Prepend);
   XMatrix matrix = new XMatrix();  //XMatrix.Identity;
   matrix.RotateAtPrepend(angle, point);
   AddTransform(matrix, XMatrixOrder.Prepend);
 }

        /// <summary>
        /// 
        /// </summary>
        /// <param name="gfx"></param>
        /// <param name="line"></param>
        /// <param name="dx"></param>
        /// <param name="dy"></param>
        /// <param name="db"></param>
        /// <param name="r"></param>
        public void Draw(object gfx, Kaliber3D.Render.XLine line, double dx, double dy, ImmutableArray<Kaliber3D.Render.ShapeProperty> db, Kaliber3D.Render.Record r)
        {
            if (!line.IsStroked)
                return;

            var _gfx = gfx as XGraphics;

            XPen strokeLine = ToXPen(line.Style, _scaleToPage);

            XSolidBrush fillStartArrow = ToXSolidBrush(line.Style.StartArrowStyle.Fill);
            XPen strokeStartArrow = ToXPen(line.Style.StartArrowStyle, _scaleToPage);

            XSolidBrush fillEndArrow = ToXSolidBrush(line.Style.EndArrowStyle.Fill);
            XPen strokeEndArrow = ToXPen(line.Style.EndArrowStyle, _scaleToPage);

            double _x1 = line.Start.X + dx;
            double _y1 = line.Start.Y + dy;
            double _x2 = line.End.X + dx;
            double _y2 = line.End.Y + dy;

            Kaliber3D.Render.XLine.SetMaxLength(line, ref _x1, ref _y1, ref _x2, ref _y2);

            double x1 = _scaleToPage(_x1);
            double y1 = _scaleToPage(_y1);
            double x2 = _scaleToPage(_x2);
            double y2 = _scaleToPage(_y2);

            var sas = line.Style.StartArrowStyle;
            var eas = line.Style.EndArrowStyle;
            double a1 = Math.Atan2(y1 - y2, x1 - x2) * 180.0 / Math.PI;
            double a2 = Math.Atan2(y2 - y1, x2 - x1) * 180.0 / Math.PI;

            var t1 = new XMatrix();
            var c1 = new XPoint(x1, y1);
            t1.RotateAtPrepend(a1, c1);

            var t2 = new XMatrix();
            var c2 = new XPoint(x2, y2);
            t2.RotateAtPrepend(a2, c2);

            XPoint pt1;
            XPoint pt2;

            double radiusX1 = sas.RadiusX;
            double radiusY1 = sas.RadiusY;
            double sizeX1 = 2.0 * radiusX1;
            double sizeY1 = 2.0 * radiusY1;

            switch (sas.ArrowType)
            {
                default:
                case Kaliber3D.Render.ArrowType.None:
                    {
                        pt1 = new XPoint(x1, y1);
                    }
                    break;
                case Kaliber3D.Render.ArrowType.Rectangle:
                    {
                        pt1 = t1.Transform(new XPoint(x1 - sizeX1, y1));
                        var rect = new XRect(x1 - sizeX1, y1 - radiusY1, sizeX1, sizeY1);
                        _gfx.Save();
                        _gfx.RotateAtTransform(a1, c1);
                        DrawRectangleInternal(_gfx, fillStartArrow, strokeStartArrow, sas.IsStroked, sas.IsFilled, ref rect);
                        _gfx.Restore();
                    }
                    break;
                case Kaliber3D.Render.ArrowType.Ellipse:
                    {
                        pt1 = t1.Transform(new XPoint(x1 - sizeX1, y1));
                        _gfx.Save();
                        _gfx.RotateAtTransform(a1, c1);
                        var rect = new XRect(x1 - sizeX1, y1 - radiusY1, sizeX1, sizeY1);
                        DrawEllipseInternal(_gfx, fillStartArrow, strokeStartArrow, sas.IsStroked, sas.IsFilled, ref rect);
                        _gfx.Restore();
                    }
                    break;
                case Kaliber3D.Render.ArrowType.Arrow:
                    {
                        pt1 = t1.Transform(new XPoint(x1, y1));
                        var p11 = t1.Transform(new XPoint(x1 - sizeX1, y1 + sizeY1));
                        var p21 = t1.Transform(new XPoint(x1, y1));
                        var p12 = t1.Transform(new XPoint(x1 - sizeX1, y1 - sizeY1));
                        var p22 = t1.Transform(new XPoint(x1, y1));
                        DrawLineInternal(_gfx, strokeStartArrow, sas.IsStroked, ref p11, ref p21);
                        DrawLineInternal(_gfx, strokeStartArrow, sas.IsStroked, ref p12, ref p22);
                    }
                    break;
            }

            double radiusX2 = eas.RadiusX;
            double radiusY2 = eas.RadiusY;
//.........这里部分代码省略.........

        private static XPoint DrawLineArrowInternal(XGraphics gfx, XPen pen, XSolidBrush brush, double x, double y, double angle, Core2D.Style.ArrowStyle style)
        {
            XPoint pt;
            var rt = new XMatrix();
            var c = new XPoint(x, y);
            rt.RotateAtPrepend(angle, c);
            double rx = style.RadiusX;
            double ry = style.RadiusY;
            double sx = 2.0 * rx;
            double sy = 2.0 * ry;

            switch (style.ArrowType)
            {
                default:
                case Core2D.Style.ArrowType.None:
                    {
                        pt = new XPoint(x, y);
                    }
                    break;
                case Core2D.Style.ArrowType.Rectangle:
                    {
                        pt = rt.Transform(new XPoint(x - sx, y));
                        var rect = new XRect(x - sx, y - ry, sx, sy);
                        gfx.Save();
                        gfx.RotateAtTransform(angle, c);
                        DrawRectangleInternal(gfx, brush, pen, style.IsStroked, style.IsFilled, ref rect);
                        gfx.Restore();
                    }
                    break;
                case Core2D.Style.ArrowType.Ellipse:
                    {
                        pt = rt.Transform(new XPoint(x - sx, y));
                        gfx.Save();
                        gfx.RotateAtTransform(angle, c);
                        var rect = new XRect(x - sx, y - ry, sx, sy);
                        DrawEllipseInternal(gfx, brush, pen, style.IsStroked, style.IsFilled, ref rect);
                        gfx.Restore();
                    }
                    break;
                case Core2D.Style.ArrowType.Arrow:
                    {
                        pt = rt.Transform(new XPoint(x, y));
                        var p11 = rt.Transform(new XPoint(x - sx, y + sy));
                        var p21 = rt.Transform(new XPoint(x, y));
                        var p12 = rt.Transform(new XPoint(x - sx, y - sy));
                        var p22 = rt.Transform(new XPoint(x, y));
                        DrawLineInternal(gfx, pen, style.IsStroked, ref p11, ref p21);
                        DrawLineInternal(gfx, pen, style.IsStroked, ref p12, ref p22);
                    }
                    break;
            }

            return pt;
        }

//.........这里部分代码省略.........
            Debug.Assert(iref.Document == this.Owner);
            // replace external object by the already clone counterpart
            resources[idx] = iref.Value;
          }
          else
          {
            // External object was not imported ealier and must be cloned
            PdfObject clone = obj.Clone();
            Debug.Assert(clone.Reference == null);
            clone.Document = this.Owner;
            if (obj.Reference != null)
            {
              // add it to this (the importer) document
              this.Owner.irefTable.Add(clone);
              Debug.Assert(clone.Reference != null);
              // save old object identifier
              importedObjectTable.Add(obj.ObjectID, clone.Reference);
              //Debug.WriteLine("Cloned: " + obj.ObjectID.ToString());
            }
            else
            {
              // The root object (the /Resources value) is not an indirect object
              Debug.Assert(idx == 0);
              // add it to this (the importer) document
              this.Owner.irefTable.Add(clone);
              Debug.Assert(clone.Reference != null);
            }
            // replace external object by its clone
            resources[idx] = clone;
          }
        }
#if DEBUG_
        for (int idx = 0; idx < count; idx++)
        {
          Debug.Assert(resources[idx].XRef != null);
          Debug.Assert(resources[idx].XRef.Document != null);
          Debug.Assert(resources[idx].Document != null);
          if (resources[idx].ObjectID.ObjectNumber == 12)
            GetType();
        }
#endif

        // 2nd step. Fix up indirect references that still refers to the import document.
        for (int idx = 0; idx < count; idx++)
        {
          PdfObject obj = resources[idx];
          Debug.Assert(obj.Owner != null);
          FixUpObject(importedObjectTable, importedObjectTable.Owner, obj);
        }

        // Set resources key to the root of the clones
        Elements["/Resources"] = resources[0].Reference;
#endif
      }

      // Take /Rotate into account
      PdfRectangle rect = importPage.Elements.GetRectangle(PdfPage.Keys.MediaBox);
      int rotate = importPage.Elements.GetInteger(PdfPage.Keys.Rotate);
      //rotate = 0;
      if (rotate == 0)
      {
        // Set bounding box to media box
        this.Elements["/BBox"] = rect;
      }
      else
      {
        // TODO: Have to adjust bounding box? (I think not, but I'm not sure -> wait for problem)
        this.Elements["/BBox"] = rect;

        // Rotate the image such that it is upright
        XMatrix matrix = new XMatrix();  //XMatrix.Identity;
        double width = rect.Width;
        double height = rect.Height;
        matrix.RotateAtPrepend(-rotate, new XPoint(width / 2, height / 2));

        // Translate the image such that its center lies on the center of the rotated bounding box
        double offset = (height - width) / 2;
        if (height > width)
          matrix.TranslatePrepend(offset, offset);
        else
          matrix.TranslatePrepend(-offset, -offset);

        //string item = "[" + PdfEncoders.ToString(matrix) + "]";
        //Elements[Keys.Matrix] = new PdfLiteral(item);
        Elements.SetMatrix(Keys.Matrix, matrix);
      }

      // Preserve filter because the content keeps unmodified
      PdfContent content = importPage.Contents.CreateSingleContent();
#if !DEBUG
      content.Compressed = true;
#endif
      PdfItem filter = content.Elements["/Filter"];
      if (filter != null)
        this.Elements["/Filter"] = filter.Clone();

      // (no cloning needed because the bytes keep untouched)
      this.Stream = content.Stream; // new PdfStream(bytes, this);
      Elements.SetInteger("/Length", content.Stream.Value.Length);
    }

    /// <summary>
    /// Writes a Glyphs to the content stream.
    /// </summary>
    private void WriteGlyphs(Glyphs glyphs)
    {
      WriteSaveState("begin Glyphs", glyphs.Name);

      // Transform also affects clipping and opacity mask
      bool transformed = glyphs.RenderTransform != null;
      if (transformed)
        WriteRenderTransform(glyphs.RenderTransform);

      bool clipped = glyphs.Clip != null;
      if (clipped)
        WriteClip(glyphs.Clip);

      if (glyphs.Opacity < 1)
        MultiplyOpacity(glyphs.Opacity);

      if (glyphs.OpacityMask != null)
        WriteOpacityMask(glyphs.OpacityMask);

      XForm xform = null;
      XImage ximage = null;
      RealizeFill(glyphs.Fill, ref xform, ref ximage);
      RealizeFont(glyphs);

      double x = glyphs.OriginX;
      double y = glyphs.OriginY;


      //switch (format.Alignment)
      //{
      //  case XStringAlignment.Near:
      //    // nothing to do
      //    break;

      //  case XStringAlignment.Center:
      //    x += (rect.Width - width) / 2;
      //    break;

      //  case XStringAlignment.Far:
      //    x += rect.Width - width;
      //    break;
      //}

      PdfFont realizedFont = this.graphicsState.realizedFont;
      Debug.Assert(realizedFont != null);
      realizedFont.AddChars(glyphs.UnicodeString);

      TrueTypeDescriptor descriptor = realizedFont.FontDescriptor.descriptor;

      //if (bold && !descriptor.IsBoldFace)
      //{
      //  // TODO: emulate bold by thicker outline
      //}

      //if (italic && !descriptor.IsBoldFace)
      //{
      //  // TODO: emulate italic by shearing transformation
      //}

      string s2 = "";
      string s = glyphs.UnicodeString;
      if (!String.IsNullOrEmpty(s))
      {
        int length = s.Length;
        for (int idx = 0; idx < length; idx++)
        {
          char ch = s[idx];
          int glyphID = 0;
          if (descriptor.fontData.cmap.symbol)
          {
            glyphID = (int)ch + (descriptor.fontData.os2.usFirstCharIndex & 0xFF00);
            glyphID = descriptor.CharCodeToGlyphIndex((char)glyphID);
          }
          else
            glyphID = descriptor.CharCodeToGlyphIndex(ch);
          s2 += (char)glyphID;
        }
      }
      s = s2;

      byte[] bytes = PdfEncoders.RawUnicodeEncoding.GetBytes(s);
      bytes = PdfEncoders.FormatStringLiteral(bytes, true, false, true, null);
      string text = PdfEncoders.RawEncoding.GetString(bytes);
      if (glyphs.IsSideways)
      {
        XMatrix textMatrix = new XMatrix();
        textMatrix.RotateAtPrepend(-90, new XPoint(x, y));
        XPoint pos = new XPoint(x, y);
        AdjustTextMatrix(ref pos);
        WriteTextTransform(textMatrix);
        WriteLiteral("{0} Tj\n", text);
      }
      else
      {
        XPoint pos = new XPoint(x, y);
        AdjustTextMatrix(ref pos);
        WriteLiteral("{0:0.###} {1:0.###} Td {2} Tj\n", pos.x, pos.y, text);
//.........这里部分代码省略.........

//.........这里部分代码省略.........
      {
        textMatrix.SkewPrepend(-20, 0);
      }

      XForm xform = null;
      XImage ximage = null;
      RealizeFill(glyphs.Fill, ref xform, ref ximage);
      RealizeFont(glyphs);

      if (boldSimulation)
        WriteLiteral("2 Tr\n", 1);

      double x = glyphs.OriginX;
      double y = glyphs.OriginY;


      //switch (format.Alignment)
      //{
      //  case XStringAlignment.Near:
      //    // nothing to do
      //    break;

      //  case XStringAlignment.Center:
      //    x += (rect.Width - width) / 2;
      //    break;

      //  case XStringAlignment.Far:
      //    x += rect.Width - width;
      //    break;
      //}

      PdfFont realizedFont = this.graphicsState.realizedFont;
      Debug.Assert(realizedFont != null);
      realizedFont.AddChars(glyphs.UnicodeString);

      OpenTypeDescriptor descriptor = realizedFont.FontDescriptor.descriptor;

      //if (bold && !descriptor.IsBoldFace)
      //{
      //  // TODO: emulate bold by thicker outline
      //}

      //if (italic && !descriptor.IsBoldFace)
      //{
      //  // TODO: emulate italic by shearing transformation
      //}

#if true
      string s2 = "";
      string s = glyphs.UnicodeString;
      if (!String.IsNullOrEmpty(s))
      {
        int length = s.Length;
        for (int idx = 0; idx < length; idx++)
        {
          char ch = s[idx];
          int glyphID = 0;
          if (descriptor.fontData.cmap.symbol)
          {
            glyphID = (int)ch + (descriptor.fontData.os2.usFirstCharIndex & 0xFF00);
            glyphID = descriptor.CharCodeToGlyphIndex((char)glyphID);
          }
          else
            glyphID = descriptor.CharCodeToGlyphIndex(ch);
          s2 += (char)glyphID;
        }
      }
      s = s2;
#endif

      byte[] bytes = PdfEncoders.RawUnicodeEncoding.GetBytes(s);
      bytes = PdfEncoders.FormatStringLiteral(bytes, true, false, true, null);
      string text = PdfEncoders.RawEncoding.GetString(bytes);
      if (glyphs.IsSideways)
      {
        textMatrix.RotateAtPrepend(-90, new XPoint(x, y));
        XPoint pos = new XPoint(x, y);
        AdjustTextMatrix(ref pos);
        //WriteTextTransform(textMatrix);
        WriteLiteral("{0} Tj\n", text);
      }
      else
      {
#if true
        //if (glyphs.BidiLevel % 2 == 1)
        //  WriteLiteral("-1 Tc\n");

        if (!textMatrix.IsIdentity)
          WriteTextTransform(textMatrix);

        WriteGlyphsInternal(glyphs, null);
#else
        XPoint pos = new XPoint(x, y);
        AdjustTextMatrix(ref pos);
        WriteLiteral("{0:0.###} {1:0.###} Td {2} Tj\n", pos.x, pos.y, text);
        //PdfEncoders.ToStringLiteral(s, PdfStringEncoding.RawEncoding, null));
#endif
      }
      WriteRestoreState("end Glyphs", glyphs.Name);
    }