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Merge pull request #490 from ispyisail/cli-pdf-links

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CLI: clickable cross-reference hyperlinks in PDF export
This commit is contained in:
Laurent Trinques
2026-06-11 14:39:53 +02:00
committed by GitHub
parent 36d0121038 a219c3f587
commit 2fdbc3c243
5 changed files with 530 additions and 352 deletions
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cmake/qet_compilation_vars.cmake
+2
View File
@@ -109,6 +109,8 @@ set(QET_RES_FILES
set(QET_SRC_FILES
${QET_DIR}/sources/cli_export.cpp
${QET_DIR}/sources/cli_export.h
${QET_DIR}/sources/pdf_links.cpp
${QET_DIR}/sources/pdf_links.h
${QET_DIR}/sources/borderproperties.cpp
${QET_DIR}/sources/borderproperties.h
${QET_DIR}/sources/bordertitleblock.cpp
sources/cli_export.cpp
+55
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@@ -23,12 +23,16 @@
#include "dataBase/projectdatabase.h"
#include "diagram.h"
#include "diagramcontext.h"
#include "pdf_links.h"
#include "qetgraphicsitem/conductor.h"
#include "qetgraphicsitem/element.h"
#include "qetgraphicsitem/terminal.h"
#include "qetproject.h"
#include "wiringlistexport.h"
// Private Qt PDF engine for drawHyperlink() — see pdf_links / projectprintwindow.
#include <private/qpdf_p.h>
#include <QDir>
#include <QDirIterator>
#include <QDomDocument>
@@ -37,6 +41,8 @@
#include <QJsonArray>
#include <QJsonDocument>
#include <QJsonObject>
#include <QMap>
#include <QPageLayout>
#include <QPainter>
#include <QPdfWriter>
#include <QSet>
@@ -44,6 +50,7 @@
#include <QSqlQuery>
#include <QSvgGenerator>
#include <QTextStream>
#include <QTransform>
namespace {
@@ -118,6 +125,12 @@ int exportPdf(QETProject &project, const QString &output)
return 1;
}
// Page numbers (1-based) for cross-reference hyperlink targets: each
// diagram is exactly one page in the CLI export (no tiling).
QMap<Diagram *, int> pageMap;
for (int i = 0; i < diagrams.size(); ++i)
pageMap.insert(diagrams.at(i), i + 1);
QPdfWriter writer(output);
writer.setCreator("QElectroTech");
writer.setResolution(96);
@@ -145,8 +158,50 @@ int exportPdf(QETProject &project, const QString &output)
const QRectF target(0, 0,
writer.width(), writer.height());
renderDiagram(diagram, painter, target);
// Inject clickable cross-reference / folio-report hyperlinks for this
// page. The geometry is rebuilt from the QPdfWriter (not a QPrinter):
// render() anchors the diagram top-left with KeepAspectRatio, and the
// page is sized to the diagram so the scale is ~1.
if (auto *engine = dynamic_cast<QPdfEngine *>(painter.paintEngine())) {
const QRectF source(r);
const qreal s = qMin(target.width() / source.width(),
target.height() / source.height());
QTransform fit;
fit.translate(target.x(), target.y());
fit.scale(s, s);
fit.translate(-source.x(), -source.y());
// Device pixels -> PDF points, replicating the engine's page matrix
// (72/resolution scale + Y flip; zero margins -> no paint offset).
const qreal pt_scale = 72.0 / writer.resolution();
const qreal fullH_pt = writer.pageLayout().fullRectPoints().height();
const bool fullPageMode =
(writer.pageLayout().mode() == QPageLayout::FullPageMode);
const QRect paintPx =
writer.pageLayout().paintRectPixels(writer.resolution());
PdfLinks::PageGeometry geom;
geom.sceneToDevice = fit;
geom.target = target;
geom.pageBounds = QRectF(0, 0, target.width(), target.height());
geom.devToPdf = [=](const QPointF &d) -> QPointF {
qreal dx = d.x(), dy = d.y();
if (!fullPageMode) { dx += paintPx.left(); dy += paintPx.top(); }
return QPointF(pt_scale * dx, fullH_pt - pt_scale * dy);
};
geom.sourceRectOf = [](Diagram *dg) {
return QRectF(diagramRect(dg));
};
PdfLinks::injectCrossRefLinks(engine, diagram, geom, pageMap, output);
}
}
painter.end();
// Rewrite the URI link annotations into native internal GoTo actions, so
// the cross-references jump inside the document in any PDF viewer.
PdfLinks::convertUriToGoTo(output);
out << "Exported " << diagrams.size() << " page(s) -> " << output << "\n";
return 0;
}
sources/pdf_links.cpp
+382
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@@ -0,0 +1,382 @@
/*
Copyright 2006-2025 The QElectroTech Team
This file is part of QElectroTech.
QElectroTech 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, either version 2 of the License, or
(at your option) any later version.
QElectroTech 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 QElectroTech. If not, see <http://www.gnu.org/licenses/>.
*/
#include "pdf_links.h"
#include "diagram.h"
#include "qetgraphicsitem/crossrefitem.h"
#include "qetgraphicsitem/dynamicelementtextitem.h"
#include "qetgraphicsitem/element.h"
#include "qetgraphicsitem/elementtextitemgroup.h"
// Private Qt PDF engine for drawHyperlink() — not public API, stable since Qt4.
// Requires QT += gui-private in qelectrotech.pro / gui-private in CMake.
#include <private/qpdf_p.h>
#include <QByteArray>
#include <QFile>
#include <QGraphicsTextItem>
#include <QList>
#include <QRegularExpression>
#include <QUrl>
#include <QVector>
namespace PdfLinks {
void injectCrossRefLinks(QPdfEngine *engine, Diagram *diagram,
const PageGeometry &geom,
const QMap<Diagram *, int> &pageMap,
const QString &outputFileName)
{
if (!engine || !diagram)
return;
const QTransform &fit = geom.sceneToDevice;
const QRectF &target = geom.target;
const QRectF &pageBounds = geom.pageBounds;
// Compute, in PDF points on its OWN page, the rectangle to frame for a
// target element (used as a /FitR destination so the link zooms onto it).
auto destRectPdf = [&](Element *tgt) -> QRectF {
Diagram *dg = tgt ? tgt->diagram() : nullptr;
if (!dg) return QRectF();
const QRectF srcT = geom.sourceRectOf(dg);
if (srcT.width() <= 0.0 || srcT.height() <= 0.0) return QRectF();
const qreal sT = qMin(target.width() / srcT.width(),
target.height() / srcT.height());
QTransform fitT;
fitT.translate(target.x(), target.y());
fitT.scale(sT, sT);
fitT.translate(-srcT.x(), -srcT.y());
QRectF elemScene = tgt->mapRectToScene(tgt->boundingRect());
// Frame the element with a little context, and enforce a minimum
// framed size so tiny contacts don't zoom in extremely.
const qreal pad = 25.0;
elemScene.adjust(-pad, -pad, pad, pad);
const qreal minSide = 160.0;
if (elemScene.width() < minSide)
elemScene.adjust(-(minSide - elemScene.width()) / 2.0, 0,
(minSide - elemScene.width()) / 2.0, 0);
if (elemScene.height() < minSide)
elemScene.adjust(0, -(minSide - elemScene.height()) / 2.0,
0, (minSide - elemScene.height()) / 2.0);
const QRectF devT = fitT.mapRect(elemScene);
const QPointF a = geom.devToPdf(devT.topLeft());
const QPointF b = geom.devToPdf(devT.bottomRight());
return QRectF(QPointF(qMin(a.x(), b.x()), qMin(a.y(), b.y())),
QPointF(qMax(a.x(), b.x()), qMax(a.y(), b.y())));
};
auto injectLink = [&](const QRectF &sceneRect, Element *targetElmt) {
if (!targetElmt || !targetElmt->diagram()) return;
const int targetPage = pageMap.value(targetElmt->diagram(), -1);
if (targetPage < 1) return;
const QRectF devRect = fit.mapRect(sceneRect);
if (!devRect.isValid() || !pageBounds.intersects(devRect)) return;
QString frag = QString("page=%1").arg(targetPage);
const QRectF d = destRectPdf(targetElmt); // /FitR L_B_R_T
if (d.isValid())
frag += QString("&fitr=%1_%2_%3_%4")
.arg(qRound(d.left())).arg(qRound(d.top()))
.arg(qRound(d.right())).arg(qRound(d.bottom()));
QUrl url = QUrl::fromLocalFile(outputFileName);
url.setFragment(frag);
engine->drawHyperlink(devRect, url);
};
for (auto *item : diagram->items()) {
// --- CrossRefItem links ---
if (auto *xref = dynamic_cast<CrossRefItem*>(item)) {
for (auto it = xref->hoveredContactsMap().begin();
it != xref->hoveredContactsMap().end(); ++it)
{
Element *targetElmt = it.key();
if (!targetElmt || !targetElmt->diagram()) continue;
// it.value() is in the CrossRefItem's LOCAL coords -> scene
injectLink(xref->mapRectToScene(it.value()), targetElmt);
}
continue;
}
// --- Folio report links (DynamicElementTextItem) ---
if (auto *deti = dynamic_cast<DynamicElementTextItem*>(item)) {
Element *parent = deti->parentElement();
if (!parent) continue;
// (a) Report element : label -> linked report on another folio
if (parent->linkType() & Element::AllReport) {
if (parent->linkedElements().isEmpty()) continue;
bool showsLabel =
(deti->textFrom() == DynamicElementTextItem::ElementInfo
&& deti->infoName() == QLatin1String("label")) ||
(deti->textFrom() == DynamicElementTextItem::CompositeText
&& deti->compositeText().contains(QStringLiteral("%{label}")));
if (!showsLabel) continue;
Element *targetElmt = parent->linkedElements().first();
if (!targetElmt || !targetElmt->diagram()) continue;
injectLink(deti->mapRectToScene(deti->boundingRect()), targetElmt);
continue;
}
// (b) Slave element : the "(folio-pos)" text -> master element
if (parent->linkType() == Element::Slave) {
QGraphicsTextItem *sx = deti->slaveXrefItem();
Element *master = deti->masterElement();
if (sx && master && master->diagram()) {
injectLink(sx->mapRectToScene(sx->boundingRect()), master);
}
continue;
}
continue;
}
// --- Slave cross-reference carried by a grouped text ---
if (auto *grp = dynamic_cast<ElementTextItemGroup*>(item)) {
Element *parent = grp->parentElement();
if (!parent || parent->linkType() != Element::Slave) continue;
if (parent->linkedElements().isEmpty()) continue;
QGraphicsTextItem *sx = grp->slaveXrefItem();
if (!sx) continue;
Element *master = parent->linkedElements().first();
if (!master || !master->diagram()) continue;
injectLink(sx->mapRectToScene(sx->boundingRect()), master);
continue;
}
}
}
void convertUriToGoTo(const QString &pdfPath)
{
// --- 1. Read raw bytes ---
QFile f(pdfPath);
if (!f.open(QIODevice::ReadOnly)) return;
QByteArray data = f.readAll();
f.close();
// --- 2. Collect page object numbers in document order ---
// Read them from the page tree (/Type /Pages -> /Kids [ N 0 R ... ]).
// This is reliable; scanning raw bytes for "/Type /Page" is NOT: that
// marker also occurs inside content streams, and a forward lookahead
// wrongly tags neighbouring objects (it found 280 "pages" for a 137-page
// document). Qt writes a single, flat /Kids array listing every page.
QVector<int> pageObjs;
{
int pagesPos = data.indexOf("/Type /Pages");
int kidsPos = (pagesPos == -1) ? -1 : data.indexOf("/Kids", pagesPos);
int lb = (kidsPos == -1) ? -1 : data.indexOf('[', kidsPos);
int rb = (lb == -1) ? -1 : data.indexOf(']', lb);
if (lb != -1 && rb != -1 && rb > lb) {
const QString kids =
QString::fromLatin1(data.mid(lb + 1, rb - lb - 1));
QRegularExpression re(QStringLiteral("(\\d+)\\s+\\d+\\s+R"));
auto it = re.globalMatch(kids);
while (it.hasNext()) {
int objNum = it.next().captured(1).toInt();
if (objNum > 0) pageObjs.append(objNum);
}
}
}
if (pageObjs.isEmpty()) return; // nothing to do
// --- 3. Replace URI annotations with GoTo ---
// Pattern (Qt always writes exactly this):
// /S /URI\n/URI (file:///...<anything>#page=N)\n
// or (older patches without file://):
// /S /URI\n/URI (page=N)\n
bool changed = false;
{
// We do a manual scan to handle variable-length replacements.
QByteArray out;
out.reserve(data.size());
const QByteArray sUri = "/S /URI\n/URI (";
const QByteArray sGoTo = "/S /GoTo\n/D [";
int pos = 0;
while (pos < data.size()) {
int found = data.indexOf(sUri, pos);
if (found == -1) {
out.append(data.mid(pos));
break;
}
// Copy everything up to the match
out.append(data.mid(pos, found - pos));
// Find closing ')' of the URI value
int uriStart = found + sUri.size();
int closeParen = data.indexOf(')', uriStart);
if (closeParen == -1) {
// Malformed — copy rest verbatim
out.append(data.mid(found));
pos = data.size();
break;
}
QByteArray uriVal = data.mid(uriStart, closeParen - uriStart);
// Extract page number: look for #page=N or bare page=N
int pageNum = -1;
int hashPos = uriVal.lastIndexOf("#page=");
int digitStart = -1;
if (hashPos != -1) {
digitStart = hashPos + 6;
} else if (uriVal.startsWith("page=")) {
digitStart = 5;
}
if (digitStart != -1) {
// Take only the leading digits: the fragment may carry extra
// parameters after the page number (e.g. "22&fitr=15_489_..."),
// and QByteArray::toInt() would fail on the whole remainder.
int e = digitStart;
while (e < uriVal.size()
&& uriVal[e] >= '0' && uriVal[e] <= '9')
++e;
if (e > digitStart)
pageNum = uriVal.mid(digitStart, e - digitStart).toInt();
}
if (pageNum >= 1 && pageNum <= pageObjs.size()) {
// Valid page reference — emit GoTo action.
int pageObjNum = pageObjs[pageNum - 1];
// Optional precise destination: &fitr=Left_Bottom_Right_Top
// (integer PDF points). If present -> /FitR (frame the element);
// otherwise -> /Fit (whole page, top).
QByteArray dest = " /Fit]";
int fr = uriVal.indexOf("fitr=");
if (fr != -1) {
QByteArray rest = uriVal.mid(fr + 5);
// stop at first char that is not part of the number list
int end = 0;
while (end < rest.size()
&& ((rest[end] >= '0' && rest[end] <= '9')
|| rest[end] == '_' || rest[end] == '-'))
++end;
QList<QByteArray> parts = rest.left(end).split('_');
if (parts.size() == 4) {
dest = " /FitR " + parts[0] + " " + parts[1] + " "
+ parts[2] + " " + parts[3] + "]";
}
}
QByteArray goTo = sGoTo
+ QByteArray::number(pageObjNum)
+ " 0 R" + dest;
out.append(goTo);
changed = true;
} else {
// Unknown page — keep original URI
out.append(sUri);
out.append(uriVal);
out.append(')');
}
pos = closeParen + 1; // skip past ')'
}
if (!changed) return; // nothing was replaced
data = out;
}
// --- 4. Rebuild xref table ---
// Find start of existing xref (last occurrence)
int xrefStart = data.lastIndexOf("\nxref\n");
if (xrefStart == -1) xrefStart = data.lastIndexOf("\nxref ");
if (xrefStart == -1) return; // malformed PDF
++xrefStart; // skip the leading '\n'
QByteArray body = data.left(xrefStart);
// Collect all object offsets from the body
QMap<int, int> offsets; // objNum -> byte offset
{
const QByteArray objMarker = " 0 obj";
int pos = 0;
while ((pos = body.indexOf(objMarker, pos)) != -1) {
int numStart = pos - 1;
while (numStart > 0 && body[numStart-1] != '\n' && body[numStart-1] != '\r')
--numStart;
QByteArray numStr = body.mid(numStart, pos - numStart).trimmed();
bool ok = false;
int objNum = numStr.toInt(&ok);
if (ok && objNum > 0)
offsets[objNum] = numStart;
++pos;
}
}
if (offsets.isEmpty()) return;
int maxObj = offsets.lastKey();
// Build xref table
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";
}
}
// Find trailer dict from the original xref section
int trailerPos = data.indexOf("trailer", xrefStart);
int trailerEnd = -1;
if (trailerPos != -1) {
trailerEnd = data.indexOf("%%EOF", trailerPos);
if (trailerEnd != -1) trailerEnd += 5;
}
QByteArray trailer;
if (trailerPos != -1 && trailerEnd != -1)
trailer = data.mid(trailerPos, trailerEnd - trailerPos);
else
trailer = "trailer\n<<>>\n%%EOF";
int newXrefOffset = body.size();
QByteArray result;
result.reserve(body.size() + xref.size() + trailer.size() + 30);
result += body;
result += xref;
result += trailer;
result += "\nstartxref\n";
result += QByteArray::number(newXrefOffset);
result += "\n%%EOF\n";
// --- 5. Write back ---
QFile out(pdfPath);
if (!out.open(QIODevice::WriteOnly | QIODevice::Truncate)) return;
out.write(result);
out.close();
}
} // namespace PdfLinks
sources/pdf_links.h
+79
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@@ -0,0 +1,79 @@
/*
Copyright 2006-2025 The QElectroTech Team
This file is part of QElectroTech.
QElectroTech 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, either version 2 of the License, or
(at your option) any later version.
QElectroTech 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 QElectroTech. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef PDF_LINKS_H
#define PDF_LINKS_H
#include <QMap>
#include <QPointF>
#include <QRectF>
#include <QString>
#include <QTransform>
#include <functional>
class QPdfEngine;
class Diagram;
/**
Shared helper that turns a project's cross-references and folio reports
into clickable internal hyperlinks in a Qt-generated PDF. Used by both the
GUI print path (ProjectPrintWindow) and the headless CLI export, each of
which builds its own page geometry and passes it in — this code never
computes the scene-to-page mapping itself.
*/
namespace PdfLinks {
/**
Geometry mapping for one rendered PDF page. Each caller builds this
from its OWN page setup (printer page layout vs QPdfWriter), since the
device-pixel and point conversions differ between them.
*/
struct PageGeometry {
/// scene coordinates -> device pixels (the same "fit" render() applied)
QTransform sceneToDevice;
/// device paint rectangle, in pixels (the page area)
QRectF target;
/// links whose rectangle falls outside this are dropped
QRectF pageBounds;
/// device pixels -> PDF points (replicates the engine's page matrix)
std::function<QPointF(const QPointF &)> devToPdf;
/// a diagram -> its source rectangle in scene pixels (for /FitR framing)
std::function<QRectF(Diagram *)> sourceRectOf;
};
/**
Inject clickable cross-reference / folio-report hyperlinks for @p diagram
into the current page of @p engine. Each link is emitted as a URI
annotation encoding the target page and a /FitR rectangle;
convertUriToGoTo() then rewrites those into native internal GoTo actions.
*/
void injectCrossRefLinks(QPdfEngine *engine, Diagram *diagram,
const PageGeometry &geom,
const QMap<Diagram *, int> &pageMap,
const QString &outputFileName);
/**
Post-process a Qt-generated PDF file: rewrite every "/S /URI" link
annotation into a native internal "/S /GoTo" action (page + /FitR or
/Fit destination) and rebuild the xref table. No-op if the file has no
such annotations.
*/
void convertUriToGoTo(const QString &pdfPath);
}
#endif // PDF_LINKS_H
sources/print/projectprintwindow.cpp
+12 -352
View File
@@ -18,6 +18,7 @@
#include "projectprintwindow.h"
#include "../diagram.h"
#include "../pdf_links.h"
#include "../qeticons.h"
#include "../qetproject.h"
#include "../qetversion.h"
@@ -200,241 +201,6 @@ ProjectPrintWindow::~ProjectPrintWindow()
* @brief ProjectPrintWindow::requestPaint
* @param slot called when m_preview emit paintRequested
*/
/**
* @brief ProjectPrintWindow::pdfConvertUriToGoTo
* Post-processes a Qt-generated PDF to replace URI link annotations
* (file:///path/to/file.pdf#page=N) with native PDF GoTo actions
* ([pageObj 0 R /Fit]). This makes cross-reference links work in all
* PDF viewers regardless of where the file is stored.
*
* The function:
* 1. Reads the PDF as raw bytes.
* 2. Collects page object numbers in document order by scanning for
* objects that contain "/Type /Page" (but not "/Type /Pages").
* 3. Replaces every annotation action block
* /S /URI\n/URI (file://...#page=N)
* with
* /S /GoTo\n/D [<pageObj> 0 R /Fit]
* 4. Rebuilds the cross-reference table (offsets change because the
* replacement strings have different lengths).
* 5. Writes the result back to the same file.
*
* The function is intentionally conservative: if any step fails (file
* not found, malformed PDF, no URI annotations) it returns silently
* without corrupting the file.
*/
static void pdfConvertUriToGoTo(const QString &pdfPath)
{
// --- 1. Read raw bytes ---
QFile f(pdfPath);
if (!f.open(QIODevice::ReadOnly)) return;
QByteArray data = f.readAll();
f.close();
// --- 2. Collect page object numbers in document order ---
// Read them from the page tree (/Type /Pages -> /Kids [ N 0 R ... ]).
// This is reliable; scanning raw bytes for "/Type /Page" is NOT: that
// marker also occurs inside content streams, and a forward lookahead
// wrongly tags neighbouring objects (it found 280 "pages" for a 137-page
// document). Qt writes a single, flat /Kids array listing every page.
QVector<int> pageObjs;
{
int pagesPos = data.indexOf("/Type /Pages");
int kidsPos = (pagesPos == -1) ? -1 : data.indexOf("/Kids", pagesPos);
int lb = (kidsPos == -1) ? -1 : data.indexOf('[', kidsPos);
int rb = (lb == -1) ? -1 : data.indexOf(']', lb);
if (lb != -1 && rb != -1 && rb > lb) {
const QString kids =
QString::fromLatin1(data.mid(lb + 1, rb - lb - 1));
QRegularExpression re(QStringLiteral("(\\d+)\\s+\\d+\\s+R"));
auto it = re.globalMatch(kids);
while (it.hasNext()) {
int objNum = it.next().captured(1).toInt();
if (objNum > 0) pageObjs.append(objNum);
}
}
}
if (pageObjs.isEmpty()) return; // nothing to do
// --- 3. Replace URI annotations with GoTo ---
// Pattern (Qt always writes exactly this):
// /S /URI\n/URI (file:///...<anything>#page=N)\n
// or (older patches without file://):
// /S /URI\n/URI (page=N)\n
bool changed = false;
{
// We do a manual scan to handle variable-length replacements.
QByteArray out;
out.reserve(data.size());
const QByteArray sUri = "/S /URI\n/URI (";
const QByteArray sGoTo = "/S /GoTo\n/D [";
int pos = 0;
while (pos < data.size()) {
int found = data.indexOf(sUri, pos);
if (found == -1) {
out.append(data.mid(pos));
break;
}
// Copy everything up to the match
out.append(data.mid(pos, found - pos));
// Find closing ')' of the URI value
int uriStart = found + sUri.size();
int closeParen = data.indexOf(')', uriStart);
if (closeParen == -1) {
// Malformed — copy rest verbatim
out.append(data.mid(found));
pos = data.size();
break;
}
QByteArray uriVal = data.mid(uriStart, closeParen - uriStart);
// Extract page number: look for #page=N or bare page=N
int pageNum = -1;
int hashPos = uriVal.lastIndexOf("#page=");
int digitStart = -1;
if (hashPos != -1) {
digitStart = hashPos + 6;
} else if (uriVal.startsWith("page=")) {
digitStart = 5;
}
if (digitStart != -1) {
// Take only the leading digits: the fragment may carry extra
// parameters after the page number (e.g. "22&fitr=15_489_..."),
// and QByteArray::toInt() would fail on the whole remainder.
int e = digitStart;
while (e < uriVal.size()
&& uriVal[e] >= '0' && uriVal[e] <= '9')
++e;
if (e > digitStart)
pageNum = uriVal.mid(digitStart, e - digitStart).toInt();
}
if (pageNum >= 1 && pageNum <= pageObjs.size()) {
// Valid page reference — emit GoTo action.
int pageObjNum = pageObjs[pageNum - 1];
// Optional precise destination: &fitr=Left_Bottom_Right_Top
// (integer PDF points). If present -> /FitR (frame the element);
// otherwise -> /Fit (whole page, top).
QByteArray dest = " /Fit]";
int fr = uriVal.indexOf("fitr=");
if (fr != -1) {
QByteArray rest = uriVal.mid(fr + 5);
// stop at first char that is not part of the number list
int end = 0;
while (end < rest.size()
&& ((rest[end] >= '0' && rest[end] <= '9')
|| rest[end] == '_' || rest[end] == '-'))
++end;
QList<QByteArray> parts = rest.left(end).split('_');
if (parts.size() == 4) {
dest = " /FitR " + parts[0] + " " + parts[1] + " "
+ parts[2] + " " + parts[3] + "]";
}
}
QByteArray goTo = sGoTo
+ QByteArray::number(pageObjNum)
+ " 0 R" + dest;
out.append(goTo);
changed = true;
} else {
// Unknown page — keep original URI
out.append(sUri);
out.append(uriVal);
out.append(')');
}
pos = closeParen + 1; // skip past ')'
}
if (!changed) return; // nothing was replaced
data = out;
}
// --- 4. Rebuild xref table ---
// Find start of existing xref (last occurrence)
int xrefStart = data.lastIndexOf("\nxref\n");
if (xrefStart == -1) xrefStart = data.lastIndexOf("\nxref ");
if (xrefStart == -1) return; // malformed PDF
++xrefStart; // skip the leading '\n'
QByteArray body = data.left(xrefStart);
// Collect all object offsets from the body
QMap<int, int> offsets; // objNum -> byte offset
{
const QByteArray objMarker = " 0 obj";
int pos = 0;
while ((pos = body.indexOf(objMarker, pos)) != -1) {
int numStart = pos - 1;
while (numStart > 0 && body[numStart-1] != '\n' && body[numStart-1] != '\r')
--numStart;
QByteArray numStr = body.mid(numStart, pos - numStart).trimmed();
bool ok = false;
int objNum = numStr.toInt(&ok);
if (ok && objNum > 0)
offsets[objNum] = numStart;
++pos;
}
}
if (offsets.isEmpty()) return;
int maxObj = offsets.lastKey();
// Build xref table
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";
}
}
// Find trailer dict from the original xref section
int trailerPos = data.indexOf("trailer", xrefStart);
int trailerEnd = -1;
if (trailerPos != -1) {
trailerEnd = data.indexOf("%%EOF", trailerPos);
if (trailerEnd != -1) trailerEnd += 5;
}
QByteArray trailer;
if (trailerPos != -1 && trailerEnd != -1)
trailer = data.mid(trailerPos, trailerEnd - trailerPos);
else
trailer = "trailer\n<<>>\n%%EOF";
int newXrefOffset = body.size();
QByteArray result;
result.reserve(body.size() + xref.size() + trailer.size() + 30);
result += body;
result += xref;
result += trailer;
result += "\nstartxref\n";
result += QByteArray::number(newXrefOffset);
result += "\n%%EOF\n";
// --- 5. Write back ---
QFile out(pdfPath);
if (!out.open(QIODevice::WriteOnly | QIODevice::Truncate)) return;
out.write(result);
out.close();
}
void ProjectPrintWindow::requestPaint()
{
#if QT_VERSION >= QT_VERSION_CHECK(5, 6, 0)
@@ -642,123 +408,17 @@ void ProjectPrintWindow::printDiagram(Diagram *diagram, bool fit_page, QPainter
return QPointF(pt_scale * dx, fullH_pt - pt_scale * dy);
};
// Compute, in PDF points on its OWN page, the rectangle to frame for a
// target element (used as a /FitR destination so the link zooms onto it).
auto destRectPdf = [&](Element *tgt) -> QRectF {
Diagram *dg = tgt ? tgt->diagram() : nullptr;
if (!dg) return QRectF();
const QRectF srcT = QRectF(diagramRect(dg, exportProperties()));
if (srcT.width() <= 0.0 || srcT.height() <= 0.0) return QRectF();
const qreal sT = qMin(target.width() / srcT.width(),
target.height() / srcT.height());
QTransform fitT;
fitT.translate(target.x(), target.y());
fitT.scale(sT, sT);
fitT.translate(-srcT.x(), -srcT.y());
QRectF elemScene = tgt->mapRectToScene(tgt->boundingRect());
// Frame the element with a little context, and enforce a minimum
// framed size so tiny contacts don't zoom in extremely.
const qreal pad = 25.0;
elemScene.adjust(-pad, -pad, pad, pad);
const qreal minSide = 160.0;
if (elemScene.width() < minSide)
elemScene.adjust(-(minSide - elemScene.width()) / 2.0, 0,
(minSide - elemScene.width()) / 2.0, 0);
if (elemScene.height() < minSide)
elemScene.adjust(0, -(minSide - elemScene.height()) / 2.0,
0, (minSide - elemScene.height()) / 2.0);
const QRectF devT = fitT.mapRect(elemScene);
const QPointF a = devToPdf(devT.topLeft());
const QPointF b = devToPdf(devT.bottomRight());
return QRectF(QPointF(qMin(a.x(), b.x()), qMin(a.y(), b.y())),
QPointF(qMax(a.x(), b.x()), qMax(a.y(), b.y())));
PdfLinks::PageGeometry geom;
geom.sceneToDevice = fit;
geom.target = target;
geom.pageBounds = pageBounds;
geom.devToPdf = devToPdf;
geom.sourceRectOf = [this](Diagram *dg) {
return QRectF(diagramRect(dg, exportProperties()));
};
auto injectLink = [&](const QRectF &sceneRect, Element *targetElmt) {
if (!targetElmt || !targetElmt->diagram()) return;
const int targetPage =
diagramPageMap.value(targetElmt->diagram(), -1);
if (targetPage < 1) return;
const QRectF devRect = fit.mapRect(sceneRect);
if (!devRect.isValid() || !pageBounds.intersects(devRect)) return;
QString frag = QString("page=%1").arg(targetPage);
const QRectF d = destRectPdf(targetElmt); // /FitR L_B_R_T
if (d.isValid())
frag += QString("&fitr=%1_%2_%3_%4")
.arg(qRound(d.left())).arg(qRound(d.top()))
.arg(qRound(d.right())).arg(qRound(d.bottom()));
QUrl url = QUrl::fromLocalFile(printer->outputFileName());
url.setFragment(frag);
pdfEngine->drawHyperlink(devRect, url);
};
for (auto *item : diagram->items()) {
// --- CrossRefItem links ---
if (auto *xref = dynamic_cast<CrossRefItem*>(item)) {
for (auto it = xref->hoveredContactsMap().begin();
it != xref->hoveredContactsMap().end(); ++it)
{
Element *targetElmt = it.key();
if (!targetElmt || !targetElmt->diagram()) continue;
// it.value() est en coords LOCALES du CrossRefItem -> scene
injectLink(xref->mapRectToScene(it.value()), targetElmt);
}
continue;
}
// --- Folio report links (DynamicElementTextItem) ---
if (auto *deti = dynamic_cast<DynamicElementTextItem*>(item)) {
Element *parent = deti->parentElement();
if (!parent) continue;
// (a) Report element : label -> linked report on another folio
if (parent->linkType() & Element::AllReport) {
if (parent->linkedElements().isEmpty()) continue;
bool showsLabel =
(deti->textFrom() == DynamicElementTextItem::ElementInfo
&& deti->infoName() == QLatin1String("label")) ||
(deti->textFrom() == DynamicElementTextItem::CompositeText
&& deti->compositeText().contains(QStringLiteral("%{label}")));
if (!showsLabel) continue;
Element *targetElmt = parent->linkedElements().first();
if (!targetElmt || !targetElmt->diagram()) continue;
injectLink(deti->mapRectToScene(deti->boundingRect()), targetElmt);
continue;
}
// (b) Slave element : the "(folio-pos)" text -> master element
if (parent->linkType() == Element::Slave) {
QGraphicsTextItem *sx = deti->slaveXrefItem();
Element *master = deti->masterElement();
if (sx && master && master->diagram()) {
injectLink(sx->mapRectToScene(sx->boundingRect()), master);
}
continue;
}
continue;
}
// --- Slave cross-reference carried by a grouped text ---
if (auto *grp = dynamic_cast<ElementTextItemGroup*>(item)) {
Element *parent = grp->parentElement();
if (!parent || parent->linkType() != Element::Slave) continue;
if (parent->linkedElements().isEmpty()) continue;
QGraphicsTextItem *sx = grp->slaveXrefItem();
if (!sx) continue;
Element *master = parent->linkedElements().first();
if (!master || !master->diagram()) continue;
injectLink(sx->mapRectToScene(sx->boundingRect()), master);
continue;
}
}
PdfLinks::injectCrossRefLinks(
pdfEngine, diagram, geom, diagramPageMap,
printer->outputFileName());
}
}
////PDF links end////
@@ -1235,7 +895,7 @@ void ProjectPrintWindow::print()
QTimer::singleShot(0, this, [this, pdfFile]() {
// Convert URI link annotations into native internal GoTo/FitR
// actions so cross-references jump inside the document.
pdfConvertUriToGoTo(pdfFile);
PdfLinks::convertUriToGoTo(pdfFile);
this->close();
});
} else {