--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/BarcodeCommand.h Sat May 01 17:59:40 2021 +0200
@@ -0,0 +1,129 @@
+/**
+ * Relational pipes
+ * Copyright © 2021 František Kučera (Frantovo.cz, GlobalCode.info)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+#pragma once
+
+#include <codecvt>
+#include <memory>
+#include <algorithm>
+#include <iostream>
+#include <stdexcept>
+
+#include <Magick++.h>
+#include <zbar.h>
+
+#include "Configuration.h"
+
+namespace relpipe {
+namespace in {
+namespace barcode {
+
+class BarcodeCommand {
+private:
+ std::wstring_convert<codecvt_utf8<wchar_t>> convertor; // TODO: use platform encoding as default / check zbar encoding
+
+
+public:
+
+ void process(Configuration& configuration, std::shared_ptr<writer::RelationalWriter> writer, std::function<void() > relationalWriterFlush) {
+
+ // TODO: require PNM input and get rid off the ImageMagick dependency?
+ Magick::Image magick("/dev/stdin");
+ int width = magick.columns();
+ int height = magick.rows();
+ Magick::Blob blob;
+ magick.modifyImage();
+ magick.write(&blob, "GRAY", 8);
+ const void *raw = blob.data();
+
+ zbar::Image image(width, height, "Y800", raw, width * height);
+ zbar::ImageScanner scanner;
+
+ writer->startRelation(L"symbol",{
+ {L"id", relpipe::writer::TypeId::INTEGER},
+ {L"type", relpipe::writer::TypeId::STRING},
+ // {L"addon_name", relpipe::writer::TypeId::STRING},
+ {L"value", relpipe::writer::TypeId::STRING},
+ // {L"xml", relpipe::writer::TypeId::STRING},
+ {L"x", relpipe::writer::TypeId::INTEGER},
+ {L"y", relpipe::writer::TypeId::INTEGER},
+ {L"width", relpipe::writer::TypeId::INTEGER},
+ {L"height", relpipe::writer::TypeId::INTEGER},
+ }, true);
+
+ int n = scanner.scan(image);
+
+ relpipe::common::type::Integer id = 0;
+ for (zbar::Image::SymbolIterator symbol = image.symbol_begin(); symbol != image.symbol_end(); ++symbol, id++) {
+ writer->writeAttribute(&id, typeid (id));
+ writer->writeAttribute(convertor.from_bytes(symbol->get_type_name()));
+ // writer->writeAttribute(convertor.from_bytes(symbol->get_addon_name()));
+ writer->writeAttribute(convertor.from_bytes(symbol->get_data()));
+ // writer->writeAttribute(convertor.from_bytes(symbol->xml()));
+
+ relpipe::common::type::Integer minX = 0;
+ relpipe::common::type::Integer minY = 0;
+ relpipe::common::type::Integer maxX = 0;
+ relpipe::common::type::Integer maxY = 0;
+
+ // TODO: return original polygon in XML
+ for (int i = 0, locationSize = symbol->get_location_size(); i < locationSize; i++) {
+ relpipe::common::type::Integer x = symbol->get_location_x(i);
+ relpipe::common::type::Integer y = symbol->get_location_y(i);
+ minX = minX ? std::min(minX, x) : x;
+ minY = minY ? std::min(minY, y) : y;
+ maxX = std::max(maxX, x);
+ maxY = std::max(maxY, y);
+ }
+
+ relpipe::common::type::Integer width = maxX - minX;
+ relpipe::common::type::Integer height = maxY - minY;
+
+ writer->writeAttribute(&minX, typeid (minX));
+ writer->writeAttribute(&minY, typeid (minY));
+ writer->writeAttribute(&width, typeid (width));
+ writer->writeAttribute(&height, typeid (height));
+ }
+
+ if (configuration.listPolygonPoints) {
+ relpipe::common::type::Integer id = 0;
+
+ writer->startRelation(L"polygon_point",{
+ {L"symbol", relpipe::writer::TypeId::INTEGER},
+ {L"point", relpipe::writer::TypeId::INTEGER},
+ {L"x", relpipe::writer::TypeId::INTEGER},
+ {L"y", relpipe::writer::TypeId::INTEGER},
+ }, true);
+
+ for (zbar::Image::SymbolIterator symbol = image.symbol_begin(); symbol != image.symbol_end(); ++symbol, id++) {
+ for (relpipe::common::type::Integer i = 0, locationSize = symbol->get_location_size(); i < locationSize; i++) {
+ relpipe::common::type::Integer x = symbol->get_location_x(i);
+ relpipe::common::type::Integer y = symbol->get_location_y(i);
+ writer->writeAttribute(&id, typeid (id));
+ writer->writeAttribute(&i, typeid (i));
+ writer->writeAttribute(&x, typeid (x));
+ writer->writeAttribute(&y, typeid (y));
+ }
+ }
+ }
+
+ image.set_data(nullptr, 0);
+ }
+};
+
+}
+}
+}