mirror of
https://invent.kde.org/graphics/okular
synced 2024-10-28 19:28:38 +00:00
76 lines
2.2 KiB
C++
76 lines
2.2 KiB
C++
/***************************************************************************
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* Copyright (C) 2006 by Albert Astals Cid <aacid@kde.org> *
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* *
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* This program 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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***************************************************************************/
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#include "pagesizelabel.h"
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#include "core/document.h"
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PageSizeLabel::PageSizeLabel( QWidget * parent, Okular::Document * document )
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: QLabel( parent ), m_document( document ),
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m_currentPage( -1 ), m_antiWidget( NULL )
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{
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}
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PageSizeLabel::~PageSizeLabel()
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{
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m_document->removeObserver( this );
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}
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QWidget *PageSizeLabel::antiWidget()
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{
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if (!m_antiWidget)
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{
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m_antiWidget = new QWidget(qobject_cast<QWidget*>(parent()));
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m_antiWidget->resize(0, 0);
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}
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return m_antiWidget;
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}
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void PageSizeLabel::notifySetup( const QVector< Okular::Page * > & pageVector, int setupFlags )
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{
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// only process data when document changes
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if ( !( setupFlags & Okular::DocumentObserver::DocumentChanged ) )
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return;
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// if document is closed or all pages have size hide widget
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int pages = pageVector.count();
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if ( pages < 1 || m_document->allPagesSize().isValid() )
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{
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hide();
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if ( m_antiWidget )
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m_antiWidget->hide();
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return;
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}
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else
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{
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show();
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if ( m_antiWidget )
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m_antiWidget->show();
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}
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}
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void PageSizeLabel::notifyViewportChanged( bool /*smoothMove*/ )
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{
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if (isVisible())
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{
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// get current page number
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int page = m_document->viewport().pageNumber;
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int pages = m_document->pages();
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// if the document is opened and page is changed
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if ( page != m_currentPage && pages > 0 )
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{
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m_currentPage = page;
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setText( m_document->pageSizeString(page) );
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m_antiWidget->setFixedSize(sizeHint());
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}
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}
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}
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#include "pagesizelabel.moc"
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