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Signature plugin: Sign electronically

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This commit is contained in:
Jakub Melka
2022-04-18 13:54:58 +02:00
parent a08d49e8d6
commit b2a26ada19
7 changed files with 147 additions and 16 deletions
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33
Pdf4QtViewerPlugins/SignaturePlugin/signatureplugin.cpp
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@ -20,10 +20,12 @@
#include "pdfutils.h"
#include "pdfpagecontenteditorwidget.h"
#include "pdfpagecontenteditorstylesettings.h"
#include "pdfdocumentbuilder.h"
#include <QAction>
#include <QToolButton>
#include <QMainWindow>
#include <QMessageBox>
namespace pdfplugin
{
@ -152,6 +154,7 @@ void SignaturePlugin::setWidget(pdf::PDFWidget* widget)
connect(&m_scene, &pdf::PDFPageContentScene::editElementRequest, this, &SignaturePlugin::onSceneEditElement);
connect(clearAction, &QAction::triggered, &m_scene, &pdf::PDFPageContentScene::clear);
connect(activateAction, &QAction::triggered, this, &SignaturePlugin::setActive);
connect(signElectronicallyAction, &QAction::triggered, this, &SignaturePlugin::onSignElectronically);
updateActions();
}
@ -268,6 +271,36 @@ void SignaturePlugin::onSceneEditElement(const std::set<pdf::PDFInteger>& elemen
}
}
void SignaturePlugin::onSignElectronically()
{
Q_ASSERT(m_document);
Q_ASSERT(!m_scene.isEmpty());
if (QMessageBox::question(m_dataExchangeInterface->getMainWindow(), tr("Confirm Signature"), tr("Document will be signed electronically. Do you want to continue?"), QMessageBox::Yes, QMessageBox::No) == QMessageBox::Yes)
{
pdf::PDFDocumentModifier modifier(m_document);
std::set<pdf::PDFInteger> pageIndices = m_scene.getPageIndices();
for (pdf::PDFInteger pageIndex : pageIndices)
{
const pdf::PDFPage* page = m_document->getCatalog()->getPage(pageIndex);
pdf::PDFPageContentStreamBuilder pageContentStreamBuilder(modifier.getBuilder(),
pdf::PDFContentStreamBuilder::CoordinateSystem::PDF,
pdf::PDFPageContentStreamBuilder::Mode::PlaceAfter);
QPainter* painter = pageContentStreamBuilder.begin(page->getPageReference());
QList<pdf::PDFRenderError> errors;
pdf::PDFTextLayoutGetter nullGetter(nullptr, pageIndex);
m_scene.drawPage(painter, pageIndex, nullptr, nullGetter, QMatrix(), errors);
pageContentStreamBuilder.end(painter);
}
if (modifier.finalize())
{
emit m_widget->getToolManager()->documentModified(pdf::PDFModifiedDocument(modifier.getDocument(), nullptr, modifier.getFlags()));
}
}
}
void SignaturePlugin::onPenChanged(const QPen& pen)
{
if (pdf::PDFCreatePCElementTool* activeTool = qobject_cast<pdf::PDFCreatePCElementTool*>(getActiveTool()))