mirror of
https://invent.kde.org/graphics/okular
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104 lines
3.6 KiB
C++
104 lines
3.6 KiB
C++
/***************************************************************************
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* Copyright (C) 2004 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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#ifndef _OKULAR_THUMBNAILLIST_H_
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#define _OKULAR_THUMBNAILLIST_H_
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#include <QScrollArea>
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#include <QToolBar>
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#include <QVBoxLayout>
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#include "core/observer.h"
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class ThumbnailListPrivate;
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namespace Okular {
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class Document;
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}
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/**
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* @short A scrollview that displays page pixmap previews (aka thumbnails).
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*
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* ...
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*/
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class ThumbnailList : public QScrollArea, public Okular::DocumentObserver
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{
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Q_OBJECT
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public:
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ThumbnailList(QWidget *parent, Okular::Document *document);
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~ThumbnailList();
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// inherited: create thumbnails ( inherited as a DocumentObserver )
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void notifySetup( const QVector< Okular::Page * > & pages, int setupFlags ) override;
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// inherited: hilihght current thumbnail ( inherited as DocumentObserver )
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void notifyCurrentPageChanged( int previous, int current ) override;
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// inherited: redraw thumbnail ( inherited as DocumentObserver )
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void notifyPageChanged( int pageNumber, int changedFlags ) override;
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// inherited: request all visible pixmap (due to a global change or so..)
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void notifyContentsCleared( int changedFlags ) override;
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// inherited: the visible areas of the page have changed
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void notifyVisibleRectsChanged() override;
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// inherited: tell if pixmap is hidden and can be unloaded
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bool canUnloadPixmap( int pageNumber ) const override;
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// redraw visible widgets (useful for refreshing contents...)
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void updateWidgets();
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public Q_SLOTS:
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// these are connected to ThumbnailController buttons
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void slotFilterBookmarks( bool filterOn );
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protected:
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// scroll up/down the view
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void keyPressEvent( QKeyEvent * e ) override;
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// catch the viewport event and filter them if necessary
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bool viewportEvent( QEvent * ) override;
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Q_SIGNALS:
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void rightClick( const Okular::Page *, const QPoint & );
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private:
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friend class ThumbnailListPrivate;
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ThumbnailListPrivate *d;
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Q_PRIVATE_SLOT( d, void slotRequestVisiblePixmaps( int newContentsY = -1 ) )
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Q_PRIVATE_SLOT( d, void slotDelayTimeout() )
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};
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/**
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* @short A vertical boxed container with zero size hint (for insertion on left toolbox)
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*/
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class ThumbnailsBox : public QWidget
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{
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Q_OBJECT
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public:
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explicit ThumbnailsBox( QWidget * parent ) : QWidget( parent ) { QVBoxLayout *vbox = new QVBoxLayout(this); vbox->setMargin(0); vbox->setSpacing(0);}
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QSize sizeHint() const override { return QSize(); }
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};
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/**
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* @short A toolbar that sets ThumbnailList properties when clicking on items
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*
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* This class is the small toolbar that resides in the bottom of the
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* ThumbnailsBox container (below ThumbnailList and the SearchLine) and
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* emits signals whenever a button is pressed. A click action results
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* in invoking some method (or slot) in ThumbnailList.
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*/
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class ThumbnailController : public QToolBar
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{
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Q_OBJECT
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public:
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ThumbnailController( QWidget * parent, ThumbnailList * thumbnailList );
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};
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#endif
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