SourceCodePrintDocument.cs :  » Game » Balder » Fireball » Syntax » C# / CSharp Open Source

using System.ComponentModel;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Media;

namespace Fireball.Syntax{
  /// <summary>
  /// Printer document class.
  /// </summary>
  /// <example >
  /// 
  /// 
  /// <b>Print the content of a SyntaxDocument:</b>
  /// <code>
  /// SourceCodePrintDocument PrintDoc=new SourceCodePrintDocument(MySyntaxDocument);
  ///
  ///  PrintDialog1.Document =PrintDoc;
  ///  if (PrintDialog1.ShowDialog ()==DialogResult.OK)
  ///    PrintDoc.Print ();
  /// </code>
  /// <hr/>
  /// <b>Print Preview the content of a SyntaxDocument</b>
  /// <code>
  /// SourceCodePrintDocument PrintDoc=new SourceCodePrintDocument(MySyntaxDocument);
  /// PrintPreviewDialog1.Document = PrintDoc
  /// PrintPreviewDialog1.ShowDialog ();
  /// </code>
  /// </example>
  public class SourceCodePrintDocument
  {
    private Font fontNormal = null;
    private Font fontBreak  = null;
    private int RowIndex = 0;


    private SyntaxDocument _Document = null;
    private RowCollection rc = null;

    public SyntaxDocument Document
    {
      get { return _Document; }
      set { _Document = value; }

    }

    public SourceCodePrintDocument() : base()
    {
    }

    public SourceCodePrintDocument(SyntaxDocument document) : base()
    {
      this.Document = document;
    }

    //Override OnBeginPrint to set up the font we are going to use
    /*protected override void OnBeginPrint(PrintEventArgs ev)
    {
      base.OnBeginPrint(ev);
      fontNormal = new Font("Courier new", 8, FontStyle.Regular);
      fontBreak = new Font("Symbol", 8, FontStyle.Bold);
      RowIndex = 0;
    }

    //Override the OnPrintPage to provide the printing logic for the document
    protected override void OnPrintPage(PrintPageEventArgs ev)
    {
      float lpp = 0;
      float yPos = 0;
      int count = 0;
      float leftMargin = ev.MarginBounds.Left;
      float rightMargin = ev.MarginBounds.Right;
      float topMargin = ev.MarginBounds.Top;
      //ev.Graphics.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAliasGridFit;

      if (rc == null)
      {
        Document.ParseAll();
        Document.ParseAll(true);


        rc = new RowCollection();
        foreach (Row r in Document)
        {
          bool hasbreak = false;
          float x = leftMargin;
          Row newRow = new Row();
          rc.Add(newRow);
          foreach (Word w in r)
          {
            Font f = fontNormal;
            if (w.Style != null)
            {
              FontStyle fs = 0;

              if (w.Style.Bold)
                fs |= FontStyle.Bold;

              if (w.Style.Italic)
                fs |= FontStyle.Italic;

              if (w.Style.Underline)
                fs |= FontStyle.Underline;

              f = new Font("Courier new", 8, fs);
            }
            SizeF sf = ev.Graphics.MeasureString(w.Text, f);
            if (x + sf.Width > rightMargin)
            {
              char chr = (char) 0xbf;
              Word br = new Word();
              br.Text = chr + "";
              br.InfoTip = "break char";
              newRow.Add(br);
              hasbreak = true;


              newRow = new Row();
              rc.Add(newRow);
              x = leftMargin;
            }
            x += sf.Width;
            newRow.Add(w);


          }
          if (hasbreak)
          {
            rc.Add(new Row());
          }
        }
      }
      //------------------------------------------------------

      base.OnPrintPage(ev);


      lpp = ev.MarginBounds.Height/fontNormal.GetHeight(ev.Graphics);


      while (count < lpp && (RowIndex < rc.Count))
      {
        float x = leftMargin;
        yPos = topMargin + (count*fontNormal.GetHeight(ev.Graphics));

        Row r = rc[RowIndex];

        foreach (Word w in r)
        {
          if (w.InfoTip != null && w.InfoTip == "break char")
          {
            ev.Graphics.DrawString(w.Text, fontBreak, Brushes.Black, x, yPos, new StringFormat());
          }
          else
          {
            SizeF sf = ev.Graphics.MeasureString(w.Text, fontNormal);

            if (w.Text != null && (".,:;".IndexOf(w.Text) >= 0))
            {
              sf.Width = 6;
              x -= 4;
            }
            if (w.Text == "\t")
            {
              sf.Width = ev.Graphics.MeasureString("...", fontNormal).Width;
            }


            Color c = Color.Black;
            Font f = fontNormal;
            if (w.Style != null)
            {
              c = w.Style.ForeColor;
              FontStyle fs = 0;

              if (w.Style.Bold)
                fs |= FontStyle.Bold;

              if (w.Style.Italic)
                fs |= FontStyle.Italic;

              if (w.Style.Underline)
                fs |= FontStyle.Underline;

              f = new Font("Courier new", 8, fs);

              if (!w.Style.Transparent)
              {
                Color bg = w.Style.BackColor;
                ev.Graphics.FillRectangle(new SolidBrush(bg), x, yPos, sf.Width, fontNormal.GetHeight(ev.Graphics));


              }

            }

            c = Color.FromArgb(c.R, c.G, c.B);


            ev.Graphics.DrawString(w.Text, f, new SolidBrush(c), x, yPos, new StringFormat());
            x += sf.Width;
          }
        }

        count++;
        RowIndex++;
      }

      //If we have more lines then print another page
      if (RowIndex < rc.Count)
        ev.HasMorePages = true;
      else
        ev.HasMorePages = false;
    }*/

  }
  
  public class Font
  {

  }

}