📄 barcode128.java
字号:
out += (char)(c - ' ');
++index;
}
while (index < tLen) {
switch (currentCode) {
case START_A:
{
if (isNextDigits(text, index, 4)) {
currentCode = START_C;
out += CODE_AB_TO_C;
String out2 = getPackedRawDigits(text, index, 4);
index += (int)out2.charAt(0);
out += out2.substring(1);
}
else {
c = text.charAt(index++);
if (c == FNC1)
out += FNC1_INDEX;
else if (c > '_') {
currentCode = START_B;
out += CODE_AC_TO_B;
out += (char)(c - ' ');
}
else if (c < ' ')
out += (char)(c + 64);
else
out += (char)(c - ' ');
}
}
break;
case START_B:
{
if (isNextDigits(text, index, 4)) {
currentCode = START_C;
out += CODE_AB_TO_C;
String out2 = getPackedRawDigits(text, index, 4);
index += (int)out2.charAt(0);
out += out2.substring(1);
}
else {
c = text.charAt(index++);
if (c == FNC1)
out += FNC1_INDEX;
else if (c < ' ') {
currentCode = START_A;
out += CODE_BC_TO_A;
out += (char)(c + 64);
}
else {
out += (char)(c - ' ');
}
}
}
break;
case START_C:
{
if (isNextDigits(text, index, 2)) {
String out2 = getPackedRawDigits(text, index, 2);
index += (int)out2.charAt(0);
out += out2.substring(1);
}
else {
c = text.charAt(index++);
if (c == FNC1)
out += FNC1_INDEX;
else if (c < ' ') {
currentCode = START_A;
out += CODE_BC_TO_A;
out += (char)(c + 64);
}
else {
currentCode = START_B;
out += CODE_AC_TO_B;
out += (char)(c - ' ');
}
}
}
break;
}
}
return out;
}
/** Generates the bars. The input has the actual barcodes, not
* the human readable text.
* @param text the barcode
* @return the bars
*/
public static byte[] getBarsCode128Raw(String text) {
int idx = text.indexOf('\uffff');
if (idx >= 0)
text = text.substring(0, idx);
int chk = text.charAt(0);
for (int k = 1; k < text.length(); ++k)
chk += k * text.charAt(k);
chk = chk % 103;
text += (char)chk;
byte bars[] = new byte[(text.length() + 1) * 6 + 7];
int k;
for (k = 0; k < text.length(); ++k)
System.arraycopy(BARS[text.charAt(k)], 0, bars, k * 6, 6);
System.arraycopy(BARS_STOP, 0, bars, k * 6, 7);
return bars;
}
/** Gets the maximum area that the barcode and the text, if
* any, will occupy. The lower left corner is always (0, 0).
* @return the size the barcode occupies.
*/
public Rectangle getBarcodeSize() {
float fontX = 0;
float fontY = 0;
String fullCode;
if (font != null) {
if (baseline > 0)
fontY = baseline - font.getFontDescriptor(BaseFont.DESCENT, size);
else
fontY = -baseline + size;
if (codeType == CODE128_RAW) {
int idx = code.indexOf('\uffff');
if (idx < 0)
fullCode = "";
else
fullCode = code.substring(idx + 1);
}
else if (codeType == CODE128_UCC)
fullCode = getHumanReadableUCCEAN(code);
else
fullCode = removeFNC1(code);
fontX = font.getWidthPoint(altText != null ? altText : fullCode, size);
}
if (codeType == CODE128_RAW) {
int idx = code.indexOf('\uffff');
if (idx >= 0)
fullCode = code.substring(0, idx);
else
fullCode = code;
}
else {
fullCode = getRawText(code, codeType == CODE128_UCC);
}
int len = fullCode.length();
float fullWidth = (len + 2) * 11 * x + 2 * x;
fullWidth = Math.max(fullWidth, fontX);
float fullHeight = barHeight + fontY;
return new Rectangle(fullWidth, fullHeight);
}
/** Places the barcode in a <CODE>PdfContentByte</CODE>. The
* barcode is always placed at coodinates (0, 0). Use the
* translation matrix to move it elsewhere.<p>
* The bars and text are written in the following colors:<p>
* <P><TABLE BORDER=1>
* <TR>
* <TH><P><CODE>barColor</CODE></TH>
* <TH><P><CODE>textColor</CODE></TH>
* <TH><P>Result</TH>
* </TR>
* <TR>
* <TD><P><CODE>null</CODE></TD>
* <TD><P><CODE>null</CODE></TD>
* <TD><P>bars and text painted with current fill color</TD>
* </TR>
* <TR>
* <TD><P><CODE>barColor</CODE></TD>
* <TD><P><CODE>null</CODE></TD>
* <TD><P>bars and text painted with <CODE>barColor</CODE></TD>
* </TR>
* <TR>
* <TD><P><CODE>null</CODE></TD>
* <TD><P><CODE>textColor</CODE></TD>
* <TD><P>bars painted with current color<br>text painted with <CODE>textColor</CODE></TD>
* </TR>
* <TR>
* <TD><P><CODE>barColor</CODE></TD>
* <TD><P><CODE>textColor</CODE></TD>
* <TD><P>bars painted with <CODE>barColor</CODE><br>text painted with <CODE>textColor</CODE></TD>
* </TR>
* </TABLE>
* @param cb the <CODE>PdfContentByte</CODE> where the barcode will be placed
* @param barColor the color of the bars. It can be <CODE>null</CODE>
* @param textColor the color of the text. It can be <CODE>null</CODE>
* @return the dimensions the barcode occupies
*/
public Rectangle placeBarcode(PdfContentByte cb, Color barColor, Color textColor) {
String fullCode;
if (codeType == CODE128_RAW) {
int idx = code.indexOf('\uffff');
if (idx < 0)
fullCode = "";
else
fullCode = code.substring(idx + 1);
}
else if (codeType == CODE128_UCC)
fullCode = getHumanReadableUCCEAN(code);
else
fullCode = removeFNC1(code);
float fontX = 0;
if (font != null) {
fontX = font.getWidthPoint(fullCode = altText != null ? altText : fullCode, size);
}
String bCode;
if (codeType == CODE128_RAW) {
int idx = code.indexOf('\uffff');
if (idx >= 0)
bCode = code.substring(0, idx);
else
bCode = code;
}
else {
bCode = getRawText(code, codeType == CODE128_UCC);
}
int len = bCode.length();
float fullWidth = (len + 2) * 11 * x + 2 * x;
float barStartX = 0;
float textStartX = 0;
switch (textAlignment) {
case Element.ALIGN_LEFT:
break;
case Element.ALIGN_RIGHT:
if (fontX > fullWidth)
barStartX = fontX - fullWidth;
else
textStartX = fullWidth - fontX;
break;
default:
if (fontX > fullWidth)
barStartX = (fontX - fullWidth) / 2;
else
textStartX = (fullWidth - fontX) / 2;
break;
}
float barStartY = 0;
float textStartY = 0;
if (font != null) {
if (baseline <= 0)
textStartY = barHeight - baseline;
else {
textStartY = -font.getFontDescriptor(BaseFont.DESCENT, size);
barStartY = textStartY + baseline;
}
}
byte bars[] = getBarsCode128Raw(bCode);
boolean print = true;
if (barColor != null)
cb.setColorFill(barColor);
for (int k = 0; k < bars.length; ++k) {
float w = bars[k] * x;
if (print)
cb.rectangle(barStartX, barStartY, w - inkSpreading, barHeight);
print = !print;
barStartX += w;
}
cb.fill();
if (font != null) {
if (textColor != null)
cb.setColorFill(textColor);
cb.beginText();
cb.setFontAndSize(font, size);
cb.setTextMatrix(textStartX, textStartY);
cb.showText(fullCode);
cb.endText();
}
return getBarcodeSize();
}
/** Creates a <CODE>java.awt.Image</CODE>. This image only
* contains the bars without any text.
* @param foreground the color of the bars
* @param background the color of the background
* @return the image
*/
public java.awt.Image createAwtImage(Color foreground, Color background) {
int f = foreground.getRGB();
int g = background.getRGB();
Canvas canvas = new Canvas();
String bCode;
if (codeType == CODE128_RAW) {
int idx = code.indexOf('\uffff');
if (idx >= 0)
bCode = code.substring(0, idx);
else
bCode = code;
}
else {
bCode = getRawText(code, codeType == CODE128_UCC);
}
int len = bCode.length();
int fullWidth = (len + 2) * 11 + 2;
byte bars[] = getBarsCode128Raw(bCode);
boolean print = true;
int ptr = 0;
int height = (int)barHeight;
int pix[] = new int[fullWidth * height];
for (int k = 0; k < bars.length; ++k) {
int w = bars[k];
int c = g;
if (print)
c = f;
print = !print;
for (int j = 0; j < w; ++j)
pix[ptr++] = c;
}
for (int k = fullWidth; k < pix.length; k += fullWidth) {
System.arraycopy(pix, 0, pix, k, fullWidth);
}
Image img = canvas.createImage(new MemoryImageSource(fullWidth, height, pix, 0, fullWidth));
return img;
}
/**
* Sets the code to generate. If it's an UCC code and starts with '(' it will
* be split by the AI. This code in UCC mode is valid:
* <p>
* <code>(01)00000090311314(10)ABC123(15)060916</code>
* @param code the code to generate
*/
public void setCode(String code) {
if (getCodeType() == Barcode128.CODE128_UCC && code.startsWith("(")) {
int idx = 0;
String ret = "";
while (idx >= 0) {
int end = code.indexOf(')', idx);
if (end < 0)
throw new IllegalArgumentException("Badly formed UCC string: " + code);
String sai = code.substring(idx + 1, end);
if (sai.length() < 2)
throw new IllegalArgumentException("AI too short: (" + sai + ")");
int ai = Integer.parseInt(sai);
int len = ais.get(ai);
if (len == 0)
throw new IllegalArgumentException("AI not found: (" + sai + ")");
sai = String.valueOf(ai);
if (sai.length() == 1)
sai = "0" + sai;
idx = code.indexOf('(', end);
int next = (idx < 0 ? code.length() : idx);
ret += sai + code.substring(end + 1, next);
if (len < 0) {
if (idx >= 0)
ret += FNC1;
}
else if (next - end - 1 + sai.length() != len)
throw new IllegalArgumentException("Invalid AI length: (" + sai + ")");
}
super.setCode(ret);
}
else
super.setCode(code);
}
static {
ais.put(0, 20);
ais.put(1, 16);
ais.put(2, 16);
ais.put(10, -1);
ais.put(11, 9);
ais.put(12, 8);
ais.put(13, 8);
ais.put(15, 8);
ais.put(17, 8);
ais.put(20, 4);
ais.put(21, -1);
ais.put(22, -1);
ais.put(23, -1);
ais.put(240, -1);
ais.put(241, -1);
ais.put(250, -1);
ais.put(251, -1);
ais.put(252, -1);
ais.put(30, -1);
for (int k = 3100; k < 3700; ++k)
ais.put(k, 10);
ais.put(37, -1);
for (int k = 3900; k < 3940; ++k)
ais.put(k, -1);
ais.put(400, -1);
ais.put(401, -1);
ais.put(402, 20);
ais.put(403, -1);
for (int k = 410; k < 416; ++k)
ais.put(k, 16);
ais.put(420, -1);
ais.put(421, -1);
ais.put(422, 6);
ais.put(423, -1);
ais.put(424, 6);
ais.put(425, 6);
ais.put(426, 6);
ais.put(7001, 17);
ais.put(7002, -1);
for (int k = 7030; k < 704; ++k)
ais.put(k, -1);
ais.put(8001, 18);
ais.put(8002, -1);
ais.put(8003, -1);
ais.put(8004, -1);
ais.put(8005, 10);
ais.put(8006, 22);
ais.put(8007, -1);
ais.put(8008, -1);
ais.put(8018, 22);
ais.put(8020, -1);
ais.put(8100, 10);
ais.put(8101, 14);
ais.put(8102, 6);
for (int k = 90; k < 100; ++k)
ais.put(k, -1);
}
}
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