racerxdl / byteCodeGen.java

public static byte[] generateByteCode(List<Command> commands, Base64Converter converter) { final ByteArrayOutputStream payload = new ByteArrayOutputStream(128); // Initialize the printer: Clear buffers and reset states for (int i=0; i<40; i++) { payload.write(0x00); payload.write(Constants.ESC); payload.write('@'); } for (final Command command : commands) { switch (command.getCommandId()) { case Align: payload.write(Constants.ESC); payload.write((byte) 'a'); payload.write((byte) ((((Align) command).getType() == Align.Type.Left) ? 0 : ((((Align) command).getType() == Align.Type.Center) ? 1 : 2))); break; case Barcode: final Barcode barCode = (Barcode) command; // Set Bar Code Height first payload.write(Constants.GS); payload.write((byte) 0x68); payload.write((byte) barCode.getHeight()); byte barcodeType = 0; // Print Bar Code // TODO: Add Error Handling for invalid data. For now we are just ignoring the invalid data switch (barCode.getType()) { case UPCA: barcodeType = 0; if (barCode.getCode().length() != 11) { System.out.println("PrinterJobHandler: Bar Code invalid length for " + barCode.getType().name() + ": " + barCode.getCode().length()); continue; } break; case UPCE: barcodeType = 1; if (barCode.getCode().length() != 7) { System.out.println("PrinterJobHandler: Bar Code invalid length for " + barCode.getType().name() + ": " + barCode.getCode().length()); continue; } break; case JAN13: barcodeType = 2; if (barCode.getCode().length() != 12) { System.out.println("PrinterJobHandler: Bar Code invalid length for " + barCode.getType().name() + ": " + barCode.getCode().length()); continue; } break; case JAN8: barcodeType = 3; if (barCode.getCode().length() != 7) { System.out.println("PrinterJobHandler: Bar Code invalid length for " + barCode.getType().name() + ": " + barCode.getCode().length()); continue; } break; case CODE39: barcodeType = 4; break; case ITF: barcodeType = 5; if (barCode.getCode().length() % 2 != 1) { System.out.println("PrinterJobHandler: Bar Code invalid length for " + barCode.getType().name() + ": " + barCode.getCode().length()); continue; } break; case NW7: barcodeType = 6; break; } // Send start of Bar Code payload.write(Constants.GS); payload.write('k'); payload.write(barcodeType); // Send Bar Code data for (Byte n : barCode.getCode().getBytes()) { payload.write(n); } payload.write((byte) 0x00); break; case Bitmap: if (converter != null) { Bitmap bmp = (Bitmap) command; BitSet imageData = RasterTools.imageDataToBits(converter.fromBase64(bmp.getRawb64())); final byte widthLSB = (byte) (bmp.getWidth() & 0xFF); final byte widthMSB = (byte) ((bmp.getWidth() >> 8) & 0xFF); // Set line height for 24 pt payload.write(Constants.ESC); payload.write('3'); payload.write(24); int offset = 0; while (offset < bmp.getHeight()) { payload.write(Constants.ESC); payload.write('*'); payload.write('!'); payload.write(widthLSB); payload.write(widthMSB); int lineIndex = 0; byte[] line = new byte[3 * bmp.getWidth()]; for (int x = 0; x < bmp.getWidth(); x++) { for (int k = 0; k < 3; k++) { byte slice = 0; for (int b = 0; b < 8; b++) { final int y = (((offset / 8) + k) * 8) + b; final int i = (y * bmp.getWidth()) + x; boolean v = false; if (i < imageData.size()) { v = !imageData.get(i); } slice |= (byte) ((v ? 1 : 0) << (7 - b)); } line[lineIndex + k] = slice; } lineIndex += 3; } for (byte b : line) { payload.write(b); } payload.write('\n'); offset += 24; } // Set line height for default payload.write(Constants.ESC); payload.write('2'); } else { System.out.println("PrinterJobHandler: Unable to print bitmap because there is no Base64Converter"); } break; case Bold: payload.write(Constants.ESC); payload.write('E'); payload.write(((Bold) command).getEnabled() ? (byte) 1 : (byte) 0); break; case Color: payload.write(Constants.ESC); payload.write('r'); payload.write(((Color) command).getType() == Color.Type.Black ? (byte) 0 : (byte) 1); break; case Cut: payload.write('\n'); payload.write('\n'); payload.write('\n'); payload.write('\n'); payload.write('\n'); payload.write(Constants.ESC); payload.write(((Cut) command).getType() == Cut.Type.Full ? ((byte) 'i') : ((byte) 'm')); break; case DashedLine: payload.write(Constants.ESC); // Align center payload.write((byte) 'a'); payload.write((byte) 1); switch (((DashedLine) command).getFont()) { case FontB: for (final Byte n : DashedLine.dashedLineB.getBytes()) { payload.write(n); } break; default: // Defaults to FontA for (final Byte n : DashedLine.dashedLineA.getBytes()) { payload.write(n); } break; } payload.write(Constants.ESC); // Align Left payload.write((byte) 'a'); payload.write((byte) 0); break; case Encoding: payload.write(Constants.FS); payload.write('('); payload.write('C'); payload.write((byte) 0x02); payload.write((byte) 0x00); payload.write((byte) 0x30); payload.write(((Encoding) command).getType() == Encoding.Type.ASCII ? (byte) 1 : (byte) 2); break; case Font: payload.write(Constants.ESC); payload.write('M'); switch (((Font) command).getFont()) { case FontA: payload.write((byte) 0); break; case FontB: payload.write((byte) 1); break; case FontC: payload.write((byte) 2); break; case FontD: payload.write((byte) 3); break; case FontE: payload.write((byte) 4); break; case SpecialFontA: payload.write((byte) 97); break; case SpecialFontB: payload.write((byte) 98); break; } break; case LineHeight: LineHeight cmd = (LineHeight) command; if (cmd.getLineHeight() == LineHeight.DEFAULT_SPACING) { payload.write(Constants.ESC); payload.write('2'); } else { payload.write(Constants.ESC); payload.write('3'); payload.write(cmd.getLineHeight()); } break; case ReverseColor: payload.write(Constants.GS); payload.write('B'); payload.write(((ReverseColor) command).getEnabled() ? (byte) 1 : (byte) 0); break; case Reset: payload.write(Constants.ESC); payload.write('@'); break; case Margin: final Margin mrgn = (Margin) command; switch (mrgn.getType()) { case Left: payload.write(Constants.ESC); payload.write(Constants.SP); payload.write((byte) (mrgn.getSize() & 0xFF)); break; case Right: payload.write(Constants.GS); payload.write((byte) 'L'); payload.write((byte) ((mrgn.getSize() & 0xFFFF) % 0xFF)); payload.write((byte) ((mrgn.getSize() & 0xFFFF) / 0xFF)); } break; case SetTabSpace: payload.write(Constants.ESC); payload.write('D'); final int tabSize = ((SetTabSpace) command).getTabSpace(); for (int i = 1; i < 32; i++) { payload.write((byte) (i * tabSize)); } payload.write(0x00); break; case SetTabPosition: payload.write(Constants.ESC); payload.write('D'); final List<Integer> pos = ((SetTabPosition) command).getTabSpace(); for (Integer po : pos) { payload.write(po.byteValue()); } payload.write(0x00); break; case Underline: payload.write(Constants.ESC); payload.write('-'); payload.write(((Underline) command).getEnabled() ? (byte) 1 : (byte) 0); break; case NewLine: payload.write((byte) 0x0A); break; case Text: final String text = ((Text) command).getText(); for (final Byte n : text.getBytes()) { payload.write(n); } break; } } return payload.toByteArray(); }