Exemplo n.º 1
0
        /// <summary>
        /// Make an image of a Code128 barcode for a given string
        /// </summary>
        /// <param name="InputData">Message to be encoded</param>
        /// <param name="BarWeight">Base thickness for bar width (1 or 2 works well)</param>
        /// <param name="AddQuietZone">Add required horiz margins (use if output is tight)</param>
        /// <returns>An Image of the Code128 barcode representing the message</returns>
        public static Image MakeBarcodeImage(string InputData, int BarWeight, bool AddQuietZone)
        {
            // get the Code128 codes to represent the message
            Code128Content content = new Code128Content(InputData);

            int[] codes = content.Codes;

            int width, height;

            width  = ((codes.Length - 3) * 11 + 35) * BarWeight;
            height = Convert.ToInt32(System.Math.Ceiling(Convert.ToSingle(width) * .15F));

            if (AddQuietZone)
            {
                width += 2 * cQuietWidth * BarWeight; // on both sides
            }

            // get surface to draw on
            Image myimg = new System.Drawing.Bitmap(width, height);

            using (Graphics gr = Graphics.FromImage(myimg))
            {
                // set to white so we don't have to fill the spaces with white
                gr.FillRectangle(System.Drawing.Brushes.White, 0, 0, width, height);

                // skip quiet zone
                int cursor = AddQuietZone ? cQuietWidth * BarWeight : 0;

                for (int codeidx = 0; codeidx < codes.Length; codeidx++)
                {
                    int code = codes[codeidx];

                    // take the bars two at a time: a black and a white
                    for (int bar = 0; bar < 8; bar += 2)
                    {
                        int barwidth = cPatterns[code, bar] * BarWeight;
                        int spcwidth = cPatterns[code, bar + 1] * BarWeight;

                        // if width is zero, don't try to draw it
                        if (barwidth > 0)
                        {
                            gr.FillRectangle(System.Drawing.Brushes.Black, cursor, 0, barwidth, height);
                        }

                        // note that we never need to draw the space, since we
                        // initialized the graphics to all white

                        // advance cursor beyond this pair
                        cursor += (barwidth + spcwidth);
                    }
                }
            }

            return(myimg);
        }
        /// <summary>
        /// Make an image of a Code128 barcode for a given string
        /// </summary>
        /// <param name="InputData">Message to be encoded</param>
        /// <param name="BarWeight">Base thickness for bar width (1 or 2 works well)</param>
        /// <param name="AddQuietZone">Add required horiz margins (use if output is tight)</param>
        /// <returns>An Image of the Code128 barcode representing the message</returns>
        public static Image MakeBarcodeImage( string InputData, int BarWeight, bool AddQuietZone )
        {
            // get the Code128 codes to represent the message
             Code128Content content = new Code128Content( InputData );
             int[] codes = content.Codes;

             int width, height;
             width = ( (codes.Length-3) * 11 + 35) * BarWeight;
             height = Convert.ToInt32( System.Math.Ceiling( Convert.ToSingle(width) * .15F) );

             if (AddQuietZone)
             {
            width += 2 * cQuietWidth * BarWeight;  // on both sides
             }

             // get surface to draw on
             Image myimg = new System.Drawing.Bitmap(width, height);
             using (Graphics gr = Graphics.FromImage(myimg))
             {

            // set to white so we don't have to fill the spaces with white
            gr.FillRectangle(System.Drawing.Brushes.White, 0, 0, width, height);

            // skip quiet zone
            int cursor = AddQuietZone ? cQuietWidth * BarWeight : 0;

            for (int codeidx = 0; codeidx < codes.Length; codeidx++)
            {
               int code = codes[codeidx];

               // take the bars two at a time: a black and a white
               for (int bar = 0; bar < 8; bar += 2)
               {
                  int barwidth = cPatterns[code, bar] * BarWeight;
                  int spcwidth = cPatterns[code, bar + 1] * BarWeight;

                  // if width is zero, don't try to draw it
                  if (barwidth > 0)
                  {
                     gr.FillRectangle(System.Drawing.Brushes.Black, cursor, 0, barwidth, height);
                  }

                  // note that we never need to draw the space, since we
                  // initialized the graphics to all white

                  // advance cursor beyond this pair
                  cursor += (barwidth + spcwidth);
               }
            }
             }

             return myimg;
        }