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/***************************************************************************
* Copyright (C) 2004 by Albert Astals Cid <tsdgeos@terra.es> *
* *
* 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. *
***************************************************************************/
#ifndef _KPDF_THUMBNAILLIST_H_
#define _KPDF_THUMBNAILLIST_H_
#include <tqscrollview.h>
#include <tqvaluevector.h>
#include <tqvbox.h>
#include <ktoolbar.h>
#include "core/observer.h"
class TQTimer;
class KActionCollection;
class KPDFDocument;
class ThumbnailWidget;
/**
* @short A scrollview that displays pages pixmaps previews (aka thumbnails).
*
* ...
*/
class ThumbnailList : public TQScrollView, public DocumentObserver
{
Q_OBJECT
public:
ThumbnailList(TQWidget *parent, KPDFDocument *document);
~ThumbnailList();
// inherited: return thumbnails observer id
uint observerId() const { return THUMBNAILS_ID; }
// inherited: create thumbnails ( inherited as a DocumentObserver )
void notifySetup( const TQValueVector< KPDFPage * > & pages, bool documentChanged );
// inherited: hilihght current thumbnail ( inherited as DocumentObserver )
void notifyViewportChanged( bool smoothMove );
// inherited: redraw thumbnail ( inherited as DocumentObserver )
void notifyPageChanged( int pageNumber, int changedFlags );
// inherited: request all visible pixmap (due to a global shange or so..)
void notifyContentsCleared( int changedFlags );
// inherited: tell if pixmap is hidden and can be unloaded
bool canUnloadPixmap( int pageNumber );
// redraw visible widgets (useful for refreshing contents...)
void updateWidgets();
// called by ThumbnailWidgets to send (forward) rightClick signals
void forwardRightClick( const KPDFPage *, const TQPoint & );
// called by ThumbnailWidgets to get the overlay bookmark pixmap
const TQPixmap * getBookmarkOverlay() const;
public slots:
// these are connected to ThumbnailController buttons
void slotFilterBookmarks( bool filterOn );
protected:
// scroll up/down the view
void keyPressEvent( TQKeyEvent * e );
// select a thumbnail by clicking on it
void contentsMousePressEvent( TQMouseEvent * );
// resize thumbnails to fit the width
void viewportResizeEvent( TQResizeEvent * );
// file drop related events (an url may be dropped even here)
void dragEnterEvent( TQDragEnterEvent* );
void dropEvent( TQDropEvent* );
signals:
void urlDropped( const KURL& );
void rightClick( const KPDFPage *, const TQPoint & );
private:
void delayedRequestVisiblePixmaps( int delayMs = 0 );
KPDFDocument *m_document;
ThumbnailWidget *m_selected;
TQTimer *m_delayTimer;
TQPixmap *m_bookmarkOverlay;
TQValueVector<ThumbnailWidget *> m_thumbnails;
TQValueList<ThumbnailWidget *> m_visibleThumbnails;
int m_vectorIndex;
private slots:
// make requests for generating pixmaps for visible thumbnails
void slotRequestVisiblePixmaps( int newContentsX = -1, int newContentsY = -1 );
// delay timeout: resize overlays and requests pixmaps
void slotDelayTimeout();
};
/**
* @short A vertical boxed container with zero size hint (for insertion on left toolbox)
*/
class ThumbnailsBox : public TQVBox
{
public:
ThumbnailsBox( TQWidget * parent ) : TQVBox( parent ) {};
TQSize sizeHint() const { return TQSize(); }
};
/**
* @short A toolbar thar set ThumbnailList properties when clicking on items
*
* This class is the small tolbar that resides in the bottom of the
* ThumbnailsBox container (below ThumbnailList and the SearchLine) and
* emits signals whenever a button is pressed. A click action results
* in invoking some method (or slot) in ThumbnailList.
*/
class ThumbnailController : public KToolBar
{
public:
ThumbnailController( TQWidget * parent, ThumbnailList * thumbnailList );
};
#endif
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