?? barcodeean.java
字號:
boolean flip = (code[0] != 0); int pb = 0; bars[pb++] = 1; bars[pb++] = 1; bars[pb++] = 1; byte sequence[] = PARITYE[code[code.length - 1]]; for (int k = 1; k < code.length - 1; ++k) { int c = code[k]; byte stripes[] = BARS[c]; if (sequence[k - 1] == (flip ? EVEN : ODD)) { bars[pb++] = stripes[0]; bars[pb++] = stripes[1]; bars[pb++] = stripes[2]; bars[pb++] = stripes[3]; } else { bars[pb++] = stripes[3]; bars[pb++] = stripes[2]; bars[pb++] = stripes[1]; bars[pb++] = stripes[0]; } } bars[pb++] = 1; bars[pb++] = 1; bars[pb++] = 1; bars[pb++] = 1; bars[pb++] = 1; bars[pb++] = 1; return bars; } /** Creates the bars for the barcode supplemental 2. * @param _code the text with 2 digits * @return the barcode */ public static byte[] getBarsSupplemental2(String _code) { int code[] = new int[2]; for (int k = 0; k < code.length; ++k) code[k] = _code.charAt(k) - '0'; byte bars[] = new byte[TOTALBARS_SUPP2]; int pb = 0; int parity = (code[0] * 10 + code[1]) % 4; bars[pb++] = 1; bars[pb++] = 1; bars[pb++] = 2; byte sequence[] = PARITY2[parity]; for (int k = 0; k < sequence.length; ++k) { if (k == 1) { bars[pb++] = 1; bars[pb++] = 1; } int c = code[k]; byte stripes[] = BARS[c]; if (sequence[k] == ODD) { bars[pb++] = stripes[0]; bars[pb++] = stripes[1]; bars[pb++] = stripes[2]; bars[pb++] = stripes[3]; } else { bars[pb++] = stripes[3]; bars[pb++] = stripes[2]; bars[pb++] = stripes[1]; bars[pb++] = stripes[0]; } } return bars; } /** Creates the bars for the barcode supplemental 5. * @param _code the text with 5 digits * @return the barcode */ public static byte[] getBarsSupplemental5(String _code) { int code[] = new int[5]; for (int k = 0; k < code.length; ++k) code[k] = _code.charAt(k) - '0'; byte bars[] = new byte[TOTALBARS_SUPP5]; int pb = 0; int parity = (((code[0] + code[2] + code[4]) * 3) + ((code[1] + code[3]) * 9)) % 10; bars[pb++] = 1; bars[pb++] = 1; bars[pb++] = 2; byte sequence[] = PARITY5[parity]; for (int k = 0; k < sequence.length; ++k) { if (k != 0) { bars[pb++] = 1; bars[pb++] = 1; } int c = code[k]; byte stripes[] = BARS[c]; if (sequence[k] == ODD) { bars[pb++] = stripes[0]; bars[pb++] = stripes[1]; bars[pb++] = stripes[2]; bars[pb++] = stripes[3]; } else { bars[pb++] = stripes[3]; bars[pb++] = stripes[2]; bars[pb++] = stripes[1]; bars[pb++] = stripes[0]; } } 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 width = 0; float height = barHeight; if (font != null) { if (baseline <= 0) height += -baseline + size; else height += baseline - font.getFontDescriptor(BaseFont.DESCENT, size); } switch (codeType) { case EAN13: width = x * (11 + 12 * 7); if (font != null) { width += font.getWidthPoint(code.charAt(0), size); } break; case EAN8: width = x * (11 + 8 * 7); break; case UPCA: width = x * (11 + 12 * 7); if (font != null) { width += font.getWidthPoint(code.charAt(0), size) + font.getWidthPoint(code.charAt(11), size); } break; case UPCE: width = x * (9 + 6 * 7); if (font != null) { width += font.getWidthPoint(code.charAt(0), size) + font.getWidthPoint(code.charAt(7), size); } break; case SUPP2: width = x * (6 + 2 * 7); break; case SUPP5: width = x * (4 + 5 * 7 + 4 * 2); break; default: throw new RuntimeException("Invalid code type."); } return new Rectangle(width, height); } /** 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) { Rectangle rect = getBarcodeSize(); float barStartX = 0; 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; } } switch (codeType) { case EAN13: case UPCA: case UPCE: if (font != null) barStartX += font.getWidthPoint(code.charAt(0), size); break; } byte bars[] = null; int guard[] = GUARD_EMPTY; switch (codeType) { case EAN13: bars = getBarsEAN13(code); guard = GUARD_EAN13; break; case EAN8: bars = getBarsEAN8(code); guard = GUARD_EAN8; break; case UPCA: bars = getBarsEAN13("0" + code); guard = GUARD_UPCA; break; case UPCE: bars = getBarsUPCE(code); guard = GUARD_UPCE; break; case SUPP2: bars = getBarsSupplemental2(code); break; case SUPP5: bars = getBarsSupplemental5(code); break; } float keepBarX = barStartX; boolean print = true; float gd = 0; if (font != null && baseline > 0 && guardBars) { gd = baseline / 2; } if (barColor != null) cb.setColorFill(barColor); for (int k = 0; k < bars.length; ++k) { float w = bars[k] * x; if (print) { if (Arrays.binarySearch(guard, k) >= 0) cb.rectangle(barStartX, barStartY - gd, w, barHeight + gd); else cb.rectangle(barStartX, barStartY, w, barHeight); } print = !print; barStartX += w; } cb.fill(); if (font != null) { if (textColor != null) cb.setColorFill(textColor); cb.beginText(); cb.setFontAndSize(font, size); switch (codeType) { case EAN13: cb.setTextMatrix(0, textStartY); cb.showText(code.substring(0, 1)); for (int k = 1; k < 13; ++k) { String c = code.substring(k, k + 1); float len = font.getWidthPoint(c, size); float pX = keepBarX + TEXTPOS_EAN13[k - 1] * x - len / 2; cb.setTextMatrix(pX, textStartY); cb.showText(c); } break; case EAN8: for (int k = 0; k < 8; ++k) { String c = code.substring(k, k + 1); float len = font.getWidthPoint(c, size); float pX = TEXTPOS_EAN8[k] * x - len / 2; cb.setTextMatrix(pX, textStartY); cb.showText(c); } break; case UPCA: cb.setTextMatrix(0, textStartY); cb.showText(code.substring(0, 1)); for (int k = 1; k < 11; ++k) { String c = code.substring(k, k + 1); float len = font.getWidthPoint(c, size); float pX = keepBarX + TEXTPOS_EAN13[k] * x - len / 2; cb.setTextMatrix(pX, textStartY); cb.showText(c); } cb.setTextMatrix(keepBarX + x * (11 + 12 * 7), textStartY); cb.showText(code.substring(11, 12)); break; case UPCE: cb.setTextMatrix(0, textStartY); cb.showText(code.substring(0, 1)); for (int k = 1; k < 7; ++k) { String c = code.substring(k, k + 1); float len = font.getWidthPoint(c, size); float pX = keepBarX + TEXTPOS_EAN13[k - 1] * x - len / 2; cb.setTextMatrix(pX, textStartY); cb.showText(c); } cb.setTextMatrix(keepBarX + x * (9 + 6 * 7), textStartY); cb.showText(code.substring(7, 8)); break; case SUPP2: case SUPP5: for (int k = 0; k < code.length(); ++k) { String c = code.substring(k, k + 1); float len = font.getWidthPoint(c, size); float pX = (7.5f + (9 * k)) * x - len / 2; cb.setTextMatrix(pX, textStartY); cb.showText(c); } break; } cb.endText(); } return rect; }}?? 快捷鍵說明
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