mirror of
https://github.com/DarkFlippers/unleashed-firmware.git
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Barcode generator: add EAN-13 support
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gid9798
parent
3b1bc8b7e1
commit
4d9ecbacae
@ -12,40 +12,88 @@ void init_types() {
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upcA->name = "UPC-A";
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upcA->numberOfDigits = 12;
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upcA->startPos = 19;
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upcA->bartype = BarTypeUPCA;
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barcodeTypes[0] = upcA;
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BarcodeType* ean8 = malloc(sizeof(BarcodeType));
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ean8->name = "EAN-8";
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ean8->numberOfDigits = 8;
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ean8->startPos = 33;
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ean8->bartype = BarTypeEAN8;
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barcodeTypes[1] = ean8;
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BarcodeType* ean13 = malloc(sizeof(BarcodeType));
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ean13->name = "EAN-13";
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ean13->numberOfDigits = 13;
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ean13->startPos = 19;
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ean13->bartype = BarTypeEAN13;
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barcodeTypes[2] = ean13;
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}
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void draw_digit(Canvas* canvas, int digit, bool rightHand, int startingPosition) {
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void draw_digit(
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Canvas* canvas,
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int digit,
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BarEncodingType rightHand,
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int startingPosition,
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bool drawlines) {
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char digitStr[2];
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snprintf(digitStr, 2, "%u", digit);
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canvas_set_color(canvas, ColorBlack);
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canvas_draw_str(
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canvas, startingPosition, BARCODE_Y_START + BARCODE_HEIGHT + BARCODE_TEXT_OFFSET, digitStr);
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if(rightHand) {
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canvas_set_color(canvas, ColorBlack);
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} else {
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canvas_set_color(canvas, ColorWhite);
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}
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int count = 0;
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for(int i = 0; i < 4; i++) {
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canvas_draw_box(
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canvas, startingPosition + count, BARCODE_Y_START, DIGITS[digit][i], BARCODE_HEIGHT);
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canvas_invert_color(canvas);
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count += DIGITS[digit][i];
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if(drawlines) {
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switch(rightHand) {
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case BarEncodingTypeLeft:
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case BarEncodingTypeRight:
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canvas_set_color(
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canvas, (rightHand == BarEncodingTypeRight) ? ColorBlack : ColorWhite);
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//int count = 0;
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for(int i = 0; i < 4; i++) {
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canvas_draw_box(
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canvas, startingPosition, BARCODE_Y_START, DIGITS[digit][i], BARCODE_HEIGHT);
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canvas_invert_color(canvas);
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startingPosition += DIGITS[digit][i];
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}
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break;
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case BarEncodingTypeG:
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canvas_set_color(canvas, ColorWhite);
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//int count = 0;
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for(int i = 3; i >= 0; i--) {
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canvas_draw_box(
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canvas, startingPosition, BARCODE_Y_START, DIGITS[digit][i], BARCODE_HEIGHT);
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canvas_invert_color(canvas);
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startingPosition += DIGITS[digit][i];
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}
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break;
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default:
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break;
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}
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}
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}
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int get_digit_position(int index, BarcodeType* type) {
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int pos = type->startPos + index * 7;
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if(index >= type->numberOfDigits / 2) {
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pos += 5;
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int pos = 0;
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switch(type->bartype) {
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case BarTypeEAN8:
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case BarTypeUPCA:
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pos = type->startPos + index * 7;
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if(index >= type->numberOfDigits / 2) {
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pos += 5;
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}
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break;
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case BarTypeEAN13:
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if(index == 0)
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pos = type->startPos - 10;
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else {
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pos = type->startPos + (index - 1) * 7;
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if((index - 1) >= type->numberOfDigits / 2) {
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pos += 5;
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}
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}
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break;
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default:
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break;
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}
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return pos;
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}
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@ -54,18 +102,30 @@ int get_menu_text_location(int index) {
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return 20 + 10 * index;
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}
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int get_barcode_max_index(PluginState* plugin_state) {
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return plugin_state->doParityCalculation ?
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barcodeTypes[plugin_state->barcodeTypeIndex]->numberOfDigits - 1 :
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barcodeTypes[plugin_state->barcodeTypeIndex]->numberOfDigits;
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}
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int calculate_check_digit(PluginState* plugin_state, BarcodeType* type) {
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int checkDigit = 0;
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int checkDigitOdd = 0;
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int checkDigitEven = 0;
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//add all odd positions. Confusing because 0index
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for(int i = 0; i < type->numberOfDigits - 1; i += 2) {
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checkDigit += plugin_state->barcodeNumeral[i];
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checkDigitOdd += plugin_state->barcodeNumeral[i];
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}
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checkDigit = checkDigit * 3; //times 3
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//add all even positions to above. Confusing because 0index
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for(int i = 1; i < type->numberOfDigits - 1; i += 2) {
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checkDigit += plugin_state->barcodeNumeral[i];
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checkDigitEven += plugin_state->barcodeNumeral[i];
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}
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if(type->bartype == BarTypeEAN13) {
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checkDigit = checkDigitEven * 3 + checkDigitOdd;
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} else {
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checkDigit = checkDigitOdd * 3 + checkDigitEven;
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}
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checkDigit = checkDigit % 10; //mod 10
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@ -103,34 +163,57 @@ static void render_callback(Canvas* const canvas, void* ctx) {
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AlignCenter,
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(barcodeTypes[plugin_state->barcodeTypeIndex])->name);
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canvas_draw_disc(
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canvas, 40, get_menu_text_location(plugin_state->menuIndex) - 1, 2); //draw menu cursor
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canvas,
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40,
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get_menu_text_location(plugin_state->menuIndex) - 1,
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2); //draw menu cursor
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} else {
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BarcodeType* type = barcodeTypes[plugin_state->barcodeTypeIndex];
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//start saftey
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canvas_set_color(canvas, ColorBlack);
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canvas_draw_box(canvas, type->startPos - 3, BARCODE_Y_START, 1, BARCODE_HEIGHT + 2);
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canvas_draw_box(
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canvas,
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(type->startPos - 1),
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BARCODE_Y_START,
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1,
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BARCODE_HEIGHT + 2); //start saftey
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canvas_draw_box(canvas, (type->startPos - 1), BARCODE_Y_START, 1, BARCODE_HEIGHT + 2);
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for(int index = 0; index < type->numberOfDigits; index++) {
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bool isOnRight = false;
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if(index >= type->numberOfDigits / 2) {
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isOnRight = true;
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}
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if((index == type->numberOfDigits - 1) &&
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(plugin_state->doParityCalculation)) { //calculate the check digit
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int checkDigit = calculate_check_digit(plugin_state, type);
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plugin_state->barcodeNumeral[type->numberOfDigits - 1] = checkDigit;
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int startpos = 0;
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int endpos = type->numberOfDigits;
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if(type->bartype == BarTypeEAN13) {
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startpos++;
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draw_digit(
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canvas,
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plugin_state->barcodeNumeral[0],
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BarEncodingTypeRight,
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get_digit_position(0, barcodeTypes[plugin_state->barcodeTypeIndex]),
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false);
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}
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if(plugin_state->doParityCalculation) { //calculate the check digit
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plugin_state->barcodeNumeral[type->numberOfDigits - 1] =
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calculate_check_digit(plugin_state, type);
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}
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for(int index = startpos; index < endpos; index++) {
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BarEncodingType barEncodingType = BarEncodingTypeLeft;
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if(type->bartype == BarTypeEAN13) {
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if(index - 1 >= (type->numberOfDigits - 1) / 2) {
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barEncodingType = BarEncodingTypeRight;
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} else {
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barEncodingType =
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(FURI_BIT(EAN13ENCODE[plugin_state->barcodeNumeral[0]], index - 1)) ?
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BarEncodingTypeG :
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BarEncodingTypeLeft;
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}
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} else {
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if(index >= type->numberOfDigits / 2) {
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barEncodingType = BarEncodingTypeRight;
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}
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}
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int digitPosition =
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get_digit_position(index, barcodeTypes[plugin_state->barcodeTypeIndex]);
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draw_digit(canvas, plugin_state->barcodeNumeral[index], isOnRight, digitPosition);
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draw_digit(
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canvas, plugin_state->barcodeNumeral[index], barEncodingType, digitPosition, true);
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}
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//central separator
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canvas_set_color(canvas, ColorBlack);
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canvas_draw_box(canvas, 62, BARCODE_Y_START, 1, BARCODE_HEIGHT + 2);
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canvas_draw_box(canvas, 64, BARCODE_Y_START, 1, BARCODE_HEIGHT + 2);
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@ -147,15 +230,11 @@ static void render_callback(Canvas* const canvas, void* ctx) {
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1); //draw editing cursor
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}
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//end safety
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int endSafetyPosition = get_digit_position(type->numberOfDigits - 1, type) + 7;
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canvas_set_color(canvas, ColorBlack);
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canvas_draw_box(canvas, endSafetyPosition, BARCODE_Y_START, 1, BARCODE_HEIGHT + 2);
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canvas_draw_box(
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canvas,
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(endSafetyPosition + 2),
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BARCODE_Y_START,
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1,
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BARCODE_HEIGHT + 2); //end safety
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canvas_draw_box(canvas, (endSafetyPosition + 2), BARCODE_Y_START, 1, BARCODE_HEIGHT + 2);
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}
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release_mutex((ValueMutex*)ctx, plugin_state);
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@ -169,7 +248,7 @@ static void input_callback(InputEvent* input_event, FuriMessageQueue* event_queu
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}
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static void barcode_generator_state_init(PluginState* const plugin_state) {
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for(int i = 0; i < 12; ++i) {
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for(int i = 0; i < BARCODE_MAX_LENS; ++i) {
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plugin_state->barcodeNumeral[i] = i % 10;
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}
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plugin_state->editingIndex = 0;
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@ -194,9 +273,7 @@ static bool handle_key_press_view(InputKey key, PluginState* plugin_state) {
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}
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static bool handle_key_press_edit(InputKey key, PluginState* plugin_state) {
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int barcodeMaxIndex = plugin_state->doParityCalculation ?
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barcodeTypes[plugin_state->barcodeTypeIndex]->numberOfDigits - 1 :
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barcodeTypes[plugin_state->barcodeTypeIndex]->numberOfDigits;
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int barcodeMaxIndex = get_barcode_max_index(plugin_state);
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switch(key) {
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case InputKeyUp:
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@ -286,6 +363,9 @@ static bool handle_key_press_menu(InputKey key, PluginState* plugin_state) {
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default:
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break;
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}
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int barcodeMaxIndex = get_barcode_max_index(plugin_state);
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if(plugin_state->editingIndex >= barcodeMaxIndex)
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plugin_state->editingIndex = barcodeMaxIndex - 1;
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return true;
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}
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@ -1,7 +1,8 @@
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#define BARCODE_HEIGHT 50
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#define BARCODE_Y_START 3
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#define BARCODE_TEXT_OFFSET 9
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#define NUMBER_OF_BARCODE_TYPES 2
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#define BARCODE_MAX_LENS 13
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#define NUMBER_OF_BARCODE_TYPES 3
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#define MENU_INDEX_VIEW 0
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#define MENU_INDEX_EDIT 1
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#define MENU_INDEX_PARITY 2
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@ -23,14 +24,27 @@ typedef enum {
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MenuMode,
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} Mode;
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typedef enum {
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BarEncodingTypeLeft,
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BarEncodingTypeRight,
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BarEncodingTypeG,
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} BarEncodingType;
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typedef enum {
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BarTypeEAN8,
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BarTypeUPCA,
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BarTypeEAN13,
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} BarType;
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typedef struct {
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char* name;
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int numberOfDigits;
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int startPos;
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BarType bartype;
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} BarcodeType;
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typedef struct {
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int barcodeNumeral[12]; //The current barcode number
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int barcodeNumeral[BARCODE_MAX_LENS]; //The current barcode number
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int editingIndex; //The index of the editing symbol
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int menuIndex; //The index of the menu cursor
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Mode mode; //View, edit or menu
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@ -50,3 +64,16 @@ static const int DIGITS[10][4] = {
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{1, 2, 1, 3},
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{3, 1, 1, 2},
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};
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static const uint8_t EAN13ENCODE[10] = {
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0b000000,
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0b110100,
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0b101100,
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0b011100,
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0b110010,
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0b100110,
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0b001110,
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0b101010,
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0b011010,
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0b010110,
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};
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