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Qt 6 declares the PDF/X namespace (pdfxid) in the XMP metadata of every PDF it writes, even when the file is not PDF/X. Adobe Acrobat then draws small text too bold at some zoom levels. Qt only needs the declaration for PDF/X-4 output, which QElectroTech never asks for. Blank the declaration out after export, in place with spaces so no offsets move, in both the export window and the --export-pdf path. Diagnosis and the Acrobat testing by Alf, bugtracker #340. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01G2d2Zi8BfrYRPX88zhaoFG
101 lines
3.5 KiB
C++
101 lines
3.5 KiB
C++
/*
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Copyright 2006-2025 The QElectroTech Team
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This file is part of QElectroTech.
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QElectroTech is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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QElectroTech is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with QElectroTech. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef PDF_LINKS_H
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#define PDF_LINKS_H
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#include <QMap>
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#include <QPointF>
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#include <QRectF>
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#include <QString>
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#include <QTransform>
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#include <functional>
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class QPdfEngine;
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class Diagram;
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/**
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Shared helper that turns a project's cross-references and folio reports
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into clickable internal hyperlinks in a Qt-generated PDF. Used by both the
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GUI print path (ProjectPrintWindow) and the headless CLI export, each of
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which builds its own page geometry and passes it in — this code never
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computes the scene-to-page mapping itself.
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*/
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namespace PdfLinks {
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/**
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Geometry mapping for one rendered PDF page. Each caller builds this
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from its OWN page setup (printer page layout vs QPdfWriter), since the
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device-pixel and point conversions differ between them.
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*/
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struct PageGeometry {
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/// scene coordinates -> device pixels (the same "fit" render() applied)
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QTransform sceneToDevice;
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/// device paint rectangle, in pixels (the page area)
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QRectF target;
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/// links whose rectangle falls outside this are dropped
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QRectF pageBounds;
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/// device pixels -> PDF points (replicates the engine's page matrix)
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std::function<QPointF(const QPointF &)> devToPdf;
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/// a diagram -> its source rectangle in scene pixels (for /FitR framing)
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std::function<QRectF(Diagram *)> sourceRectOf;
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};
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/**
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Inject clickable cross-reference / folio-report hyperlinks for @p diagram
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into the current page of @p engine. Each link is emitted as a URI
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annotation encoding the target page and a /FitR rectangle;
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convertUriToGoTo() then rewrites those into native internal GoTo actions.
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*/
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void injectCrossRefLinks(QPdfEngine *engine, Diagram *diagram,
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const PageGeometry &geom,
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const QMap<Diagram *, int> &pageMap,
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const QString &outputFileName);
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/**
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Post-process a Qt-generated PDF file: rewrite every "/S /URI" link
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annotation into a native internal "/S /GoTo" action (page + /FitR or
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/Fit destination) and rebuild the xref table. No-op if the file has no
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such annotations.
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*/
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void convertUriToGoTo(const QString &pdfPath);
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/**
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Post-process a Qt-generated PDF file: blank out the PDF/X namespace
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declaration Qt 6 writes into the XMP metadata of every PDF. Adobe
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Acrobat draws small text too bold when it is present (bugtracker #340).
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Replaced in place with spaces, so no offset changes. No-op for a real
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PDF/X file or when the declaration is absent.
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*/
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void removeUnusedPdfxNamespace(const QString &pdfPath);
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struct ComponentInfo {
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QString contents;
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};
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/**
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Post-process a Qt-generated PDF file: convert component-info placeholder
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link annotations (http://componentinfo.local/<N>) into invisible text
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annotations with the actual component info as /Contents.
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*/
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void convertComponentInfoAnnotations(const QString &pdfPath,
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const QList<ComponentInfo> &annotations);
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}
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#endif // PDF_LINKS_H
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