okular/ui/signaturepanel.cpp
Chinmoy Ranjan Pradhan a234a902dc Implement digital signature support for PDF
This is a squash of the original branch

It also contains fixes/rework from Albert Astals Cid

If you're interested in its history have a look at the
gsoc2018_digitalsignature branch

The poppler dependency situation is:
 * With 0.51 you get most signature information
 * With 0.68 you also get signature location/reason information
 * With 0.73 you also get signature certificate information
2019-01-10 23:13:54 +01:00

123 lines
4 KiB
C++

/***************************************************************************
* Copyright (C) 2018 by Chinmoy Ranjan Pradhan <chinmoyrp65@gmail.com> *
* *
* 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; either version 2 of the License, or *
* (at your option) any later version. *
***************************************************************************/
#include "signaturepanel.h"
#include "pageview.h"
#include "signatureguiutils.h"
#include "signaturemodel.h"
#include "revisionviewer.h"
#include "signaturepropertiesdialog.h"
#include <KLocalizedString>
#include <QMenu>
#include <QTreeView>
#include <QVBoxLayout>
#include <QHeaderView>
#include <QApplication>
#include "core/form.h"
#include "core/document.h"
class SignaturePanelPrivate
{
public:
Okular::Document *m_document;
const Okular::FormFieldSignature *m_currentForm;
QTreeView *m_view;
SignatureModel *m_model;
PageView *m_pageView;
};
SignaturePanel::SignaturePanel( Okular::Document *document, QWidget *parent )
: QWidget( parent ), d_ptr( new SignaturePanelPrivate )
{
Q_D( SignaturePanel );
d->m_view = new QTreeView( this );
d->m_view->setAlternatingRowColors( true );
d->m_view->setSelectionMode( QAbstractItemView::SingleSelection );
d->m_view->setContextMenuPolicy( Qt::CustomContextMenu );
d->m_view->header()->hide();
d->m_document = document;
d->m_model = new SignatureModel( d->m_document, this );
d->m_view->setModel( d->m_model );
connect( d->m_view->selectionModel(), &QItemSelectionModel::currentChanged, this, &SignaturePanel::activated );
connect( d->m_view, &QTreeView::customContextMenuRequested, this, &SignaturePanel::slotShowContextMenu );
auto vLayout = new QVBoxLayout( this );
vLayout->setMargin( 0 );
vLayout->setSpacing( 6 );
vLayout->addWidget( d->m_view );
}
void SignaturePanel::activated( const QModelIndex &index )
{
Q_D( SignaturePanel );
d->m_currentForm = d->m_model->data( index, SignatureModel::FormRole ).value<const Okular::FormFieldSignature *>();
if ( !d->m_currentForm )
return;
const Okular::NormalizedRect nr = d->m_currentForm->rect();
Okular::DocumentViewport vp;
vp.pageNumber = d->m_model->data( index, SignatureModel::PageRole ).toInt();
vp.rePos.enabled = true;
vp.rePos.pos = Okular::DocumentViewport::Center;
vp.rePos.normalizedX = ( nr.right + nr.left ) / 2.0;
vp.rePos.normalizedY = ( nr.bottom + nr.top ) / 2.0;
d->m_document->setViewport( vp, nullptr );
d->m_pageView->highlightSignatureFormWidget( d->m_currentForm );
}
void SignaturePanel::slotShowContextMenu()
{
Q_D( SignaturePanel );
if ( !d->m_currentForm )
return;
QMenu *menu = new QMenu( this );
QAction *sigProp = new QAction( i18n("Properties"), menu );
connect( sigProp, &QAction::triggered, this, &SignaturePanel::slotViewProperties );
menu->addAction( sigProp );
menu->exec( QCursor::pos() );
delete menu;
}
void SignaturePanel::slotViewProperties()
{
Q_D( SignaturePanel );
SignaturePropertiesDialog propDlg( d->m_document, d->m_currentForm, this );
propDlg.exec();
}
void SignaturePanel::notifySetup( const QVector<Okular::Page *> &/*pages*/, int setupFlags )
{
if ( !( setupFlags & Okular::DocumentObserver::UrlChanged ) )
return;
Q_D( SignaturePanel );
const QVector<const Okular::FormFieldSignature *> signatureForms = SignatureGuiUtils::getSignatureFormFields( d->m_document, true, -1 );
emit documentHasSignatures( !signatureForms.isEmpty() );
}
SignaturePanel::~SignaturePanel()
{
Q_D( SignaturePanel );
d->m_document->removeObserver( this );
delete d->m_model;
}
void SignaturePanel::setPageView( PageView *pv )
{
Q_D( SignaturePanel );
d->m_pageView = pv;
}
#include "moc_signaturepanel.cpp"