//绘制条形码
public string DrawCode128(Graphics g, string code, int x, int y)
{
if (code.Length == 0)
{
return("Invalid code for Code128 barcode");
}
List <int> encoded = new List <int>();
Code128Modes currentMode = Code128Modes.CodeUnset;
for (int i = 0; i < code.Length; i++)
{
if (IsNumber(code[i]) && i + 1 < code.Length && IsNumber(code[i + 1]))
{
if (currentMode != Code128Modes.CodeC)
{
if (currentMode == Code128Modes.CodeUnset)
{
encoded.Add((int)Code128StartModes.CodeC);
}
else
{
encoded.Add((int)Code128ChangeModes.CodeC);
}
currentMode = Code128Modes.CodeC;
}
encoded.Add(Int32.Parse(code.Substring(i, 2)));
i++;
}
else
{
if (currentMode != Code128Modes.CodeB)
{
if (currentMode == Code128Modes.CodeUnset)
{
encoded.Add((int)Code128StartModes.CodeB);
}
else
{
encoded.Add((int)Code128ChangeModes.CodeB);
}
currentMode = Code128Modes.CodeB;
}
encoded.Add(EncodeCodeB(code[i]));
}
}
encoded.Add(CheckDigitCode128(encoded));
string barbit = "";
for (int i = 0; i < encoded.Count; i++)
{
barbit += Code128Encoding[encoded[i]];
}
barbit += Code128Stop;
barbit += "11"; // end code
int barwidth = (int)Math.Floor((double)(width - 2) / (barbit.Length + 20)); // add 20 for padding
if (barwidth <= 0)
{
barwidth = 1;
}
int padding = barwidth * 10;
if (centered)
{
x = (int)x - (((barwidth * barbit.Length) + (padding * 2)) / 2);
}
int start = x + padding;
for (int i = 1; i <= barbit.Length; i++)
{
string bit = barbit.Substring(i - 1, 1);
if (bit == "0")
{
g.FillRectangle(Brushes.White, start, y, barwidth, height);
}
else // bit == "1"
{
g.FillRectangle(Brushes.Black, start, y, barwidth, height);
}
start += barwidth;
}
//显示条码下面的数字code
//if (humanReadable)
//{
// Font font = new Font(fontName, fontSize, FontStyle.Bold);
// SizeF size = g.MeasureString(code, font);
// x = x + (int)((barwidth * barbit.Length) + (padding * 2)) / 2;
// x -= (int)size.Width / 2;
// g.DrawString(code, font, Brushes.Black, x, y + height + 4);
//}
return("");
}
public string DrawCode128(Graphics g, string code, string nombreproducto, int x, int y)
{
if (code.Length == 0)
{
return("Invalid code for Code128 barcode");
}
ArrayList encoded = new ArrayList(); // = new int[0];
Code128Modes currentMode = Code128Modes.CodeUnset;
for (int i = 0; i < code.Length; i++)
{
if (IsNumber(code[i]) && i + 1 < code.Length && IsNumber(code[i + 1]))
{
if (currentMode != Code128Modes.CodeC)
{
if (currentMode == Code128Modes.CodeUnset)
{
encoded.Add((int)Code128StartModes.CodeC);
}
else
{
encoded.Add((int)Code128ChangeModes.CodeC);
}
currentMode = Code128Modes.CodeC;
}
encoded.Add(Int32.Parse(code.Substring(i, 2)));
i++;
}
else
{
if (currentMode != Code128Modes.CodeB)
{
if (currentMode == Code128Modes.CodeUnset)
{
encoded.Add((int)Code128StartModes.CodeB);
}
else
{
encoded.Add((int)Code128ChangeModes.CodeB);
}
currentMode = Code128Modes.CodeB;
}
encoded.Add(EncodeCodeB(code[i]));
}
}
encoded.Add(CheckDigitCode128((int[])encoded.ToArray(typeof(int))));
string barbit = "";
for (int i = 0; i < encoded.Count; i++)
{
barbit += Code128Encoding[Int32.Parse(encoded[i].ToString())];
}
barbit += Code128Stop;
barbit += "11"; // end code
int barwidth = (int)Math.Floor((double)(width - 2) / (barbit.Length + 10)); // add 10 for padding
if (barwidth <= 0)
{
barwidth = 1;
}
int padding = barwidth * 10;
if (centered)
{
x = (int)x + (width / 2) - (((barwidth * barbit.Length) + (padding * 2)) / 2);
}
int start = x + padding;
for (int i = 1; i <= barbit.Length; i++)
{
string bit = barbit.Substring(i - 1, 1);
if (bit == "0")
{
g.FillRectangle(Brushes.White, start, y, barwidth, height - 20);
}
else // bit == "1"
{
g.FillRectangle(Brushes.Black, start, y, barwidth, height - 20);
}
start += barwidth;
}
if (humanReadable)
{
Font font = new Font(fontName, fontSize, FontStyle.Bold);
Font font1 = new Font(fontName, fontSizeDescripcion, FontStyle.Bold);
SizeF size = g.MeasureString(code, font);
SizeF size2 = g.MeasureString(nombreproducto, font1);
x = x + (int)((barwidth * barbit.Length) + (padding * 2)) / 2;
x -= (int)size.Width / 2;
//g.DrawString(code, font, Brushes.Black, x, y + height + 4);
g.DrawString(code, font, Brushes.Black, x, y + height - 20);
//g.DrawString(nombreproducto, font1, Brushes.Black, -2, y + height + 30);
g.DrawString(nombreproducto, font1, Brushes.Black, -2, y + height - 5);
}
return("");
}
