mirror of
https://invent.kde.org/graphics/okular
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126 lines
4.5 KiB
C++
126 lines
4.5 KiB
C++
/***************************************************************************
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* Copyright (C) 2004 by Albert Astals Cid <tsdgeos@terra.es> *
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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 _KPDF_THUMBNAILLIST_H_
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#define _KPDF_THUMBNAILLIST_H_
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#include <qscrollarea.h>
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#include <kvbox.h>
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#include <qtoolbar.h>
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#include "core/observer.h"
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class QTimer;
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class QVBoxLayout;
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class KActionCollection;
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class KPDFDocument;
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class ThumbnailWidget;
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/**
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* @short A scrollview that displays pages pixmaps previews (aka thumbnails).
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*
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* ...
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*/
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class ThumbnailList : public QScrollArea, public DocumentObserver
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{
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Q_OBJECT
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public:
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ThumbnailList(QWidget *parent, KPDFDocument *document);
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~ThumbnailList();
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// inherited: return thumbnails observer id
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uint observerId() const { return THUMBNAILS_ID; }
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// inherited: create thumbnails ( inherited as a DocumentObserver )
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void notifySetup( const QVector< KPDFPage * > & pages, bool documentChanged );
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// inherited: hilihght current thumbnail ( inherited as DocumentObserver )
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void notifyViewportChanged( bool smoothMove );
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// inherited: redraw thumbnail ( inherited as DocumentObserver )
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void notifyPageChanged( int pageNumber, int changedFlags );
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// inherited: request all visible pixmap (due to a global shange or so..)
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void notifyContentsCleared( int changedFlags );
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// inherited: the visible areas of the page have changed
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void notifyVisibleRectsChanged();
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// inherited: tell if pixmap is hidden and can be unloaded
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bool canUnloadPixmap( int pageNumber );
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// redraw visible widgets (useful for refreshing contents...)
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void updateWidgets();
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// called by ThumbnailWidgets to send (forward) the mouse click signals
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void forwardClick( const KPDFPage *, const QPoint &, Qt::MouseButton );
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// called by ThumbnailWidgets to get the overlay bookmark pixmap
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const QPixmap * getBookmarkOverlay() const;
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public 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 );
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// resize thumbnails to fit the width
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void viewportResizeEvent( QResizeEvent * );
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// catch the viewport event and filter them if necessary
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bool viewportEvent( QEvent * );
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// file drop related events (an url may be dropped even here)
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void dragEnterEvent( QDragEnterEvent* );
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void dropEvent( QDropEvent* );
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signals:
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void urlDropped( const KUrl& );
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void rightClick( const KPDFPage *, const QPoint & );
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private:
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void delayedRequestVisiblePixmaps( int delayMs = 0 );
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KPDFDocument *m_document;
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ThumbnailWidget *m_selected;
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QTimer *m_delayTimer;
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QPixmap *m_bookmarkOverlay;
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QVector<ThumbnailWidget *> m_thumbnails;
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QList<ThumbnailWidget *> m_visibleThumbnails;
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int m_vectorIndex;
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QWidget *m_pagesWidget;
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QVBoxLayout *m_pagesLayout;
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private slots:
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// make requests for generating pixmaps for visible thumbnails
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void slotRequestVisiblePixmaps( int newContentsY = -1 );
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// delay timeout: resize overlays and requests pixmaps
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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 KVBox
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{
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public:
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ThumbnailsBox( QWidget * parent ) : KVBox( parent ) {};
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QSize sizeHint() const { return QSize(); }
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};
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/**
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* @short A toolbar thar set ThumbnailList properties when clicking on items
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*
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* This class is the small tolbar 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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public:
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ThumbnailController( QWidget * parent, ThumbnailList * thumbnailList );
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};
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#endif
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