textElement.cs :  » PDF » SharpPDF » sharpPDF » Elements » C# / CSharp Open Source

using System;
using System.Text;

using sharpPDF.Exceptions;
using sharpPDF.Enumerators;
using sharpPDF.Fonts;

namespace sharpPDF.Elements{
  /// <summary>
  /// A Class that implements simple PDF text.
  /// </summary>
  public sealed class textElement : pdfElement
  {
    private string _content;
    private int _fontSize;    
    private pdfAbstractFont _fontType;    

    /// <summary>
    /// Class's constructor
    /// </summary>
    /// <param name="newContent">Text's content</param>
    /// <param name="newFontSize">Font's size</param>
    /// <param name="newFontType">Font's type</param>
    /// <param name="newCoordX">X position of the text in the page</param>
    /// <param name="newCoordY">Y position of the text in the page</param>
    public textElement(string newContent, int newFontSize, pdfAbstractFont newFontType, int newCoordX, int newCoordY):this(newContent, newFontSize, newFontType, newCoordX, newCoordY, pdfColor.Black)
    {        
    }

    /// <summary>
    /// Class's constructor
    /// </summary>
    /// <param name="newContent">Text's content</param>
    /// <param name="newFontSize">Font's size</param>
    /// <param name="newFontType">Font's type</param>
    /// <param name="newCoordX">X position of the text in the page</param>
    /// <param name="newCoordY">Y position of the text in the page</param>
    /// <param name="newStrokeColor">Font's color</param>
    public textElement(string newContent, int newFontSize, pdfAbstractFont newFontType, int newCoordX, int newCoordY, pdfColor newStrokeColor)
    {
      _content = newContent;
      _fontSize = newFontSize;
      _fontType = newFontType;
      _coordX = newCoordX;
      _coordY = newCoordY;
      _strokeColor = newStrokeColor;
      _height = newFontType.fontDefinition.fontHeight * newFontSize;
      _width = newFontType.getWordWidth(newContent,newFontSize);
      if (newFontType is pdfTrueTypeFont) {
        ((pdfTrueTypeFont)newFontType).addCharacters(newContent);
      }
    }

    /// <summary>
    /// Text's content
    /// </summary>
    public string content
    {
      get
      {
        return _content;
      }

      set
      {
        _content = value;
      }

    }

    /// <summary>
    /// Font's size
    /// </summary>
    public int fontSize
    {
      get
      {
        return _fontSize;
      }

      set
      {
        _fontSize = value;
      }
    }

    /// <summary>
    /// Font's type
    /// </summary>
    public pdfAbstractFont fontType
    {
      get
      {
        return fontType;
      }

      set
      {
        _fontType = value;
      }
    }

    /// <summary>
    /// Method that returns the PDF codes to write the text in the document
    /// </summary>
    /// <returns>String that contains PDF codes</returns>
    public override string getText()
    {
      StringBuilder resultText = new StringBuilder();
      StringBuilder hexContent = new StringBuilder();
      resultText.Append(_objectID.ToString() + " 0 obj" + Convert.ToChar(13) + Convert.ToChar(10));
            resultText.Append("<<" + Convert.ToChar(13) + Convert.ToChar(10));
            resultText.Append("/Filter [/ASCIIHexDecode]" + Convert.ToChar(13) + Convert.ToChar(10));
      hexContent.Append("q" + Convert.ToChar(13) + Convert.ToChar(10));
            hexContent.Append("BT" + Convert.ToChar(13) + Convert.ToChar(10));
            hexContent.Append("/F" + _fontType.fontNumber.ToString() + " " + _fontSize.ToString() + " Tf" + Convert.ToChar(13) + Convert.ToChar(10));
            if(_strokeColor.isColor()) {
        hexContent.Append(_strokeColor.rColor + " " + _strokeColor.gColor + " " + _strokeColor.bColor + " rg" + Convert.ToChar(13) + Convert.ToChar(10));            
      }
            hexContent.Append(_coordX.ToString() + " " + _coordY.ToString() + " Td" + Convert.ToChar(13) + Convert.ToChar(10));
            if (_fontType is pdfTrueTypeFont) {
        hexContent.Append("(" + textAdapter.checkText(_fontType.encodeText(_content)) + ") Tj" + Convert.ToChar(13) + Convert.ToChar(10));
      } else {
        hexContent.Append("(" + _fontType.encodeText(textAdapter.checkText(_content)) + ") Tj" + Convert.ToChar(13) + Convert.ToChar(10));
            }
      hexContent.Append("ET" + Convert.ToChar(13) + Convert.ToChar(10));
            hexContent.Append("Q");
      resultText.Append("/Length " + ((hexContent.Length * 2) + 1).ToString() + Convert.ToChar(13) + Convert.ToChar(10));
      resultText.Append(">>" + Convert.ToChar(13) + Convert.ToChar(10));
            resultText.Append("stream" + Convert.ToChar(13) + Convert.ToChar(10));
            resultText.Append(textAdapter.HEXFormatter(hexContent.ToString()) + ">" + Convert.ToChar(13) + Convert.ToChar(10));      
      resultText.Append("endstream" + Convert.ToChar(13) + Convert.ToChar(10));            
            resultText.Append("endobj" + Convert.ToChar(13) + Convert.ToChar(10));
      hexContent = null;
      return resultText.ToString();
    }

    /// <summary>
    /// Method that clones the element
    /// </summary>
    /// <returns>Cloned object</returns>
    public override object Clone()
    {
      return new textElement((string)_content.Clone(), _fontSize, _fontType, _coordX, _coordY, (pdfColor)_strokeColor.Clone());
    }
  }
}