Export component info as invisible PDF text annotations

sources/pdf_links.cpp

@@ -32,6 +32,7 @@
 #include <QGraphicsTextItem>
 #include <QList>
 #include <QRegularExpression>
+#include <QTextCodec>
 #include <QUrl>
 #include <QVector>
 
@@ -238,6 +239,15 @@ void convertUriToGoTo(const QString &pdfPath)
 
 			QByteArray uriVal = data.mid(uriStart, closeParen - uriStart);
 
+			// Skip component-info annotations — handled by
+			// convertComponentInfoAnnotations() in a separate pass.
+			if (uriVal.startsWith("componentinfo://")
+				|| uriVal.startsWith("http://componentinfo.local/")) {
+				out.append(data.mid(found, closeParen + 1 - found));
+				pos = closeParen + 1;
+				continue;
+			}
+
 			// Extract page number: look for #page=N or bare page=N
 			int pageNum = -1;
 			int hashPos = uriVal.lastIndexOf("#page=");
@@ -379,4 +389,200 @@ void convertUriToGoTo(const QString &pdfPath)
 	out.close();
 }
 
+void convertComponentInfoAnnotations(const QString &pdfPath,
+									const QList<ComponentInfo> &annotations)
+{
+	if (annotations.isEmpty()) return;
+
+	QFile f(pdfPath);
+	if (!f.open(QIODevice::ReadOnly)) return;
+	QByteArray data = f.readAll();
+	f.close();
+
+	const QByteArray marker("http://componentinfo.local/");
+	if (!data.contains(marker)) return;
+
+	int xrefStart = data.lastIndexOf("\nxref\n");
+	if (xrefStart == -1) xrefStart = data.lastIndexOf("\nxref ");
+	if (xrefStart == -1) return;
+	++xrefStart;
+	QByteArray body = data.left(xrefStart);
+
+	// Pre-scan body for highest object number
+	int maxObjNum = 0;
+	{
+		const QByteArray objMarker(" 0 obj");
+		int p = 0;
+		while ((p = body.indexOf(objMarker, p)) != -1) {
+			int numStart = p - 1;
+			while (numStart > 0 && body[numStart - 1] != '\n' && body[numStart - 1] != '\r')
+				--numStart;
+			QByteArray numStr = body.mid(numStart, p - numStart).trimmed();
+			bool ok = false;
+			int num = numStr.toInt(&ok);
+			if (ok && num > maxObjNum)
+				maxObjNum = num;
+			++p;
+		}
+	}
+	// Empty Form XObject used as invisible appearance for all annotations.
+	// All annotations reference this single object.
+	int emptyXObjNum = maxObjNum + 1;
+
+	QByteArray out;
+	out.reserve(data.size());
+
+	int pos = 0;
+	int annotIdx = 0;
+
+	while (pos < body.size()) {
+		int markerPos = body.indexOf(marker, pos);
+		if (markerPos == -1) {
+			out.append(body.mid(pos));
+			break;
+		}
+
+		int uriOpen = body.lastIndexOf("/URI (", markerPos);
+		int closeParen = (uriOpen != -1) ? body.indexOf(')', markerPos) : -1;
+		if (uriOpen == -1 || closeParen == -1 || uriOpen < pos) {
+			out.append(body.mid(pos, markerPos + marker.size() - pos));
+			pos = markerPos + marker.size();
+			continue;
+		}
+
+		// Find /S /URI before /URI (
+		int sUriPos = body.lastIndexOf("/S /URI", uriOpen);
+
+		// Find the /A << that opens the action dict containing /S /URI.
+		// Qt always writes: /A <<\n/S /URI\n/URI (...)\n>>\n>>
+		// We need /Contents at the annotation level, NOT inside /A <<.
+		int aDictOpen = body.lastIndexOf("/A <<", (sUriPos != -1) ? sUriPos : uriOpen);
+		int copyEnd = (aDictOpen != -1 && aDictOpen >= pos) ? aDictOpen
+					: (sUriPos != -1 && sUriPos >= pos) ? sUriPos
+					: uriOpen;
+		out.append(body.mid(pos, copyEnd - pos));
+
+		// Get text from annotations list (matched by order)
+		if (annotIdx >= annotations.size()) {
+			// Keep original action dict intact
+			out.append(body.mid(copyEnd, closeParen + 1 - copyEnd));
+			pos = closeParen + 1;
+			continue;
+		}
+
+		QByteArray contents = annotations[annotIdx].contents.toUtf8();
+		++annotIdx;
+
+		// Replace /Subtype /Link with /Subtype /Text
+		int subTypePos = out.lastIndexOf("/Subtype /Link");
+		if (subTypePos != -1) {
+			out.replace(subTypePos, 14, "/Subtype /Text");
+		}
+
+		// Encode as UTF-16BE hex with BOM for proper Unicode support (Umlauten etc.).
+		// PDF spec: hex strings starting with FE FF are interpreted as UTF-16BE.
+		QTextCodec *codec = QTextCodec::codecForName("UTF-16BE");
+		QByteArray utf16be;
+		utf16be.append('\xfe');
+		utf16be.append('\xff');
+		if (codec) {
+			utf16be += codec->fromUnicode(QString::fromUtf8(contents));
+		} else {
+			// Fallback: manual UTF-16BE encoding
+			QString str = QString::fromUtf8(contents);
+			for (int i = 0; i < str.size(); ++i) {
+				ushort cp = str.at(i).unicode();
+				utf16be.append(static_cast<char>((cp >> 8) & 0xFF));
+				utf16be.append(static_cast<char>(cp & 0xFF));
+			}
+		}
+
+		out += "/Contents <";
+		out += utf16be.toHex();
+		out += ">\n/AP << /N " + QByteArray::number(emptyXObjNum) + " 0 R >>\n";
+
+		// Skip the entire /A << ... >> action dict.
+		// After closeParen ')' we have: \n>>  (closes /A dict)  \n>>  (closes annot dict)
+		int actionDictClose = body.indexOf(">>", closeParen + 1);
+		if (actionDictClose != -1) {
+			pos = actionDictClose + 2;  // skip past >> that closes /A dict
+		} else {
+			pos = closeParen + 1;
+		}
+	}
+
+	if (annotIdx == 0) return;
+
+	// Append empty Form XObject (shared by all annotations for invisible appearance)
+	QByteArray emptyXObj;
+	emptyXObj += QByteArray::number(emptyXObjNum) + " 0 obj\n";
+	emptyXObj += "<< /Type /XObject /Subtype /Form /BBox [0 0 0 0] /Length 0 >>\n";
+	emptyXObj += "stream\nendstream\n";
+	emptyXObj += "endobj\n";
+	out += emptyXObj;
+
+	// Rebuild xref table
+	QMap<int, int> offsets;
+	{
+		const QByteArray objMarker(" 0 obj");
+		int p = 0;
+		while ((p = out.indexOf(objMarker, p)) != -1) {
+			int numStart = p - 1;
+			while (numStart > 0 && out[numStart - 1] != '\n' && out[numStart - 1] != '\r')
+				--numStart;
+			QByteArray numStr = out.mid(numStart, p - numStart).trimmed();
+			bool ok = false;
+			int objNum = numStr.toInt(&ok);
+			if (ok && objNum > 0)
+				offsets[objNum] = numStart;
+			++p;
+		}
+	}
+
+	if (offsets.isEmpty()) return;
+
+	int maxObj = offsets.lastKey();
+
+	QByteArray xref;
+	xref += "xref\n";
+	xref += "0 " + QByteArray::number(maxObj + 1) + "\n";
+	xref += "0000000000 65535 f \n";
+	for (int i = 1; i <= maxObj; ++i) {
+		if (offsets.contains(i)) {
+			xref += QByteArray::number(offsets[i]).rightJustified(10, '0')
+				+ " 00000 n \n";
+		} else {
+			xref += "0000000000 65535 f \n";
+		}
+	}
+
+	QByteArray trailer;
+	{
+		int tPos = data.indexOf("trailer", xrefStart);
+		if (tPos != -1) {
+			int tEnd = data.indexOf("%%EOF", tPos);
+			if (tEnd != -1) tEnd += 5;
+			if (tEnd != -1)
+				trailer = data.mid(tPos, tEnd - tPos);
+		}
+	}
+	if (trailer.isEmpty())
+		trailer = "trailer\n<<>>\n%%EOF";
+
+	QByteArray result;
+	result.reserve(out.size() + xref.size() + trailer.size() + 64);
+	result += out;
+	int newXrefOffset = out.size();
+	result += xref;
+	result += trailer;
+	result += "\nstartxref\n";
+	result += QByteArray::number(newXrefOffset);
+	result += "\n%%EOF\n";
+
+	QFile outF(pdfPath);
+	if (!outF.open(QIODevice::WriteOnly | QIODevice::Truncate)) return;
+	outF.write(result);
+	outF.close();
+}
+
 } // namespace PdfLinks

sources/pdf_links.h

@@ -74,6 +74,13 @@ namespace PdfLinks {
 */
 void convertUriToGoTo(const QString &pdfPath);
 
+struct ComponentInfo {
+	QString contents;
+};
+
+void convertComponentInfoAnnotations(const QString &pdfPath,
+									const QList<ComponentInfo> &annotations);
+
 }
 
 #endif // PDF_LINKS_H

sources/print/projectprintwindow.cpp

@@ -20,10 +20,12 @@
 #include "../diagram.h"
 #include "../pdf_links.h"
 #include "../qeticons.h"
+#include "../qetinformation.h"
 #include "../qetproject.h"
 #include "../qetversion.h"
 #include "../qetgraphicsitem/crossrefitem.h"
 #include "../qetgraphicsitem/dynamicelementtextitem.h"
+#include "../qetgraphicsitem/element.h"
 #include "../qetgraphicsitem/elementtextitemgroup.h"
 
 #include "ui_projectprintwindow.h"
@@ -156,6 +158,7 @@ ProjectPrintWindow::ProjectPrintWindow(QETProject *project, QPrinter *printer, Q
 		ui->m_button_box->addButton(pdf_button, QDialogButtonBox::ActionRole);
 		connect(pdf_button, &QPushButton::clicked, this, &ProjectPrintWindow::exportToPDF);
 	}
+	ui->m_component_info_cb->setVisible(m_printer->outputFormat() == QPrinter::PdfFormat);
 
 	auto exp = ExportProperties::defaultPrintProperties();
 	ui->m_draw_border_cb->setChecked(exp.draw_border);
@@ -426,6 +429,50 @@ void ProjectPrintWindow::printDiagram(Diagram *diagram, bool fit_page, QPainter
 			PdfLinks::injectCrossRefLinks(
 				pdfEngine, diagram, geom, diagramPageMap,
 				printer->outputFileName());
+
+			////Collect component info for popup annotations////
+			if (ui->m_component_info_cb->isChecked()) {
+				for (auto *item : diagram->items()) {
+					auto *el = dynamic_cast<Element*>(item);
+					if (!el) continue;
+
+					// Skip reports and slaves
+					auto lt = el->linkType();
+					if (lt & Element::AllReport) continue;
+					if (lt == Element::Slave) continue;
+
+					auto info = el->elementInformations();
+					if (info.count() == 0) continue;
+
+				// Build info text
+				QStringList lines;
+				for (const QString &key : {"label", "manufacturer", "designation", "description"}) {
+					if (info.contains(key) && !info.value(key).toString().isEmpty())
+						lines << QETInformation::translatedInfoKey(key) + ": " + info.value(key).toString();
+				}
+				for (const QString &key : info.keys()) {
+					if (key == "formula") continue;
+					QString translated = QETInformation::translatedInfoKey(key);
+					if (lines.contains(translated + ": " + info.value(key).toString())) continue;
+					if (info.value(key).toString().isEmpty()) continue;
+					lines << translated + ": " + info.value(key).toString();
+				}
+					if (lines.isEmpty()) continue;
+
+				// Compute element rect in device pixels
+				QRectF elemScene = el->mapRectToScene(el->boundingRect());
+				QRectF devRect = fit.mapRect(elemScene);
+
+				PdfLinks::ComponentInfo ci;
+				ci.contents = lines.join("\n");
+				m_componentInfoList.append(ci);
+
+				// Create a link annotation as placeholder — post-processing
+				// will convert it to an invisible text annotation with the actual content
+					pdfEngine->drawHyperlink(devRect, QUrl("http://componentinfo.local/"));
+				}
+			}
+			////Component info end////
 		}
 	}
 	////PDF links end////
@@ -799,6 +846,7 @@ void ProjectPrintWindow::on_m_draw_titleblock_cb_clicked()      { m_preview->upd
 void ProjectPrintWindow::on_m_keep_conductor_color_cb_clicked() { m_preview->updatePreview(); }
 void ProjectPrintWindow::on_m_draw_terminal_cb_clicked()        { m_preview->updatePreview(); }
 void ProjectPrintWindow::on_m_draw_terminal_names_cb_clicked()  { m_preview->updatePreview(); }
+void ProjectPrintWindow::on_m_component_info_cb_clicked()       { m_preview->updatePreview(); }
 void ProjectPrintWindow::on_m_fit_in_page_cb_clicked()          { m_preview->updatePreview(); }
 void ProjectPrintWindow::on_m_use_full_page_cb_clicked()
 {
@@ -903,9 +951,16 @@ void ProjectPrintWindow::print()
 		// which prevents the black screen observed on Apple Silicon under
 		// macOS Sequoia (QPrintPreviewWidget + CALayer timing issue).
 		QTimer::singleShot(0, this, [this, pdfFile]() {
+			// Convert component-info link annotations into invisible text annotations
+			if (ui->m_component_info_cb->isChecked() && !m_componentInfoList.isEmpty()) {
+				PdfLinks::convertComponentInfoAnnotations(pdfFile, m_componentInfoList);
+				m_componentInfoList.clear();
+			}
+
 			// Convert URI link annotations into native internal GoTo/FitR
 			// actions so cross-references jump inside the document.
 			PdfLinks::convertUriToGoTo(pdfFile);
+
 			this->close();
 		});
 	} else {

sources/print/projectprintwindow.h

@@ -19,6 +19,7 @@
 #define PROJECTPRINTWINDOW_H
 
 #include "../exportproperties.h"
+#include "../pdf_links.h"
 
 #include <QMainWindow>
 #include <QMap>
@@ -56,6 +57,7 @@ class ProjectPrintWindow : public QMainWindow
 		void on_m_keep_conductor_color_cb_clicked();
 		void on_m_draw_terminal_cb_clicked();
 	void on_m_draw_terminal_names_cb_clicked();
+	void on_m_component_info_cb_clicked();
 	void on_m_fit_in_page_cb_clicked();
 		void on_m_use_full_page_cb_clicked();
 		void on_m_zoom_out_action_triggered();
@@ -102,6 +104,7 @@ class ProjectPrintWindow : public QMainWindow
 		QPrintPreviewWidget *m_preview=nullptr;
 		QColor m_backup_diagram_background_color;
 		QHash<Diagram *, QCheckBox *> m_diagram_list_hash;
+		QList<PdfLinks::ComponentInfo> m_componentInfoList;
 };
 
 #endif // PROJECTPRINTWINDOW_H

sources/print/projectprintwindow.ui

@@ -193,6 +193,16 @@
            </property>
           </widget>
         </item>
+        <item>
+          <widget class="QCheckBox" name="m_component_info_cb">
+           <property name="text">
+            <string>Inscrire les informations des composants</string>
+           </property>
+           <property name="checked">
+            <bool>false</bool>
+           </property>
+          </widget>
+        </item>
        </layout>
      </widget>
     </item>