tdefileiconview.h

/* This file is part of the KDE libraries
    Copyright (C) 1997 Stephan Kulow <coolo@kde.org>
 
    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.
 
    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Library General Public License for more details.
 
    You should have received a copy of the GNU Library General Public License
    along with this library; see the file COPYING.LIB.  If not, write to
    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
    Boston, MA 02110-1301, USA.
*/
 
#ifndef TDEFILEICONVIEW_H
#define TDEFILEICONVIEW_H
 
#include <tqglobal.h>
 
#include <kiconview.h>
#include <kiconloader.h>
#include <tdefileview.h>
#include <kmimetyperesolver.h>
#include <tdefile.h>
 
class KFileItem;
class TQWidget;
class TQLabel;
 
class TDEIO_EXPORT KFileIconViewItem : public TDEIconViewItem
{
public:
    KFileIconViewItem( TQIconView *parent, const TQString &text,
               const TQPixmap &pixmap,
               KFileItem *fi )
    : TDEIconViewItem( parent, text, pixmap ), inf( fi ) {}
    KFileIconViewItem( TQIconView *parent, KFileItem *fi )
    : TDEIconViewItem( parent ), inf( fi ) {}
 
    virtual ~KFileIconViewItem();
 
    KFileItem *fileInfo() const {
    return inf;
    }
 
private:
    KFileItem *inf;
 
private:
    class KFileIconViewItemPrivate;
    KFileIconViewItemPrivate *d;
 
};
 
namespace TDEIO {
    class Job;
}
 
class TDEIO_EXPORT KFileIconView : public TDEIconView, public KFileView
{
    TQ_OBJECT
 
public:
    KFileIconView(TQWidget *parent, const char *name);
    virtual ~KFileIconView();
 
    virtual TQWidget *widget() { return this; }
    virtual void clearView();
    virtual void setAutoUpdate( bool ) {} // ### unused. remove in KDE4
 
    virtual void updateView( bool );
    virtual void updateView(const KFileItem*);
    virtual void removeItem(const KFileItem*);
 
    virtual void listingCompleted();
 
    virtual void insertItem( KFileItem *i );
    virtual void setSelectionMode( KFile::SelectionMode sm );
 
    virtual void setSelected(const KFileItem *, bool);
    virtual bool isSelected(const KFileItem *i) const;
    virtual void clearSelection();
    virtual void selectAll();
    virtual void invertSelection();
 
    virtual void setCurrentItem( const KFileItem * );
    virtual KFileItem * currentFileItem() const;
    virtual KFileItem * firstFileItem() const;
    virtual KFileItem * nextItem( const KFileItem * ) const;
    virtual KFileItem * prevItem( const KFileItem * ) const;
 
    void setIconSize( int size );
 
    void setPreviewSize( int size );
 
    void setIgnoreMaximumSize(bool ignoreSize=true);
 
    int iconSize() const { return myIconSize; }
 
    void ensureItemVisible( const KFileItem * );
 
    virtual void setSorting(TQDir::SortSpec sort);
 
    virtual void readConfig( TDEConfig *, const TQString& group = TQString::null );
    virtual void writeConfig( TDEConfig *, const TQString& group = TQString::null);
 
    // for KMimeTypeResolver
    void mimeTypeDeterminationFinished();
    void determineIcon( KFileIconViewItem *item );
    TQScrollView *scrollWidget() const { return (TQScrollView*) this; }
    void setAcceptDrops(bool b) 
    {  
      TDEIconView::setAcceptDrops(b); 
      viewport()->setAcceptDrops(b);
    }
 
public slots:
    void showPreviews();
 
    void zoomIn();
    
    void zoomOut();
    
    virtual void arrangeItemsInGrid( bool updated = true );
 
protected:
    virtual void keyPressEvent( TQKeyEvent * );
 
    virtual void hideEvent( TQHideEvent * );
 
    // ### workaround for Qt3 bug (see #35080)
    virtual void showEvent( TQShowEvent * );
 
    virtual bool eventFilter( TQObject *o, TQEvent *e );
 
    // DND support
    virtual TQDragObject *dragObject();
    virtual void contentsDragEnterEvent( TQDragEnterEvent *e );
    virtual void contentsDragMoveEvent( TQDragMoveEvent *e );
    virtual void contentsDragLeaveEvent( TQDragLeaveEvent *e );
    virtual void contentsDropEvent( TQDropEvent *ev );
 
    // KDE4: Make virtual
    bool acceptDrag(TQDropEvent* e ) const;
 
private slots:
    void selected( TQIconViewItem *item );
    void slotActivate( TQIconViewItem * );
    void highlighted( TQIconViewItem *item );
    void showToolTip( TQIconViewItem *item );
    void removeToolTip();
    void slotActivateMenu( TQIconViewItem *, const TQPoint& );
    void slotSelectionChanged();
 
    void slotSmallColumns();
    void slotLargeRows();
    void slotPreviewsToggled( bool );
 
    void slotPreviewResult( TDEIO::Job * );
    void gotPreview( const KFileItem *item, const TQPixmap& pix );
    void slotAutoOpen();
 
signals:
    void dropped(TQDropEvent *event, KFileItem *fileItem);
    void dropped(TQDropEvent *event, const KURL::List &urls, const KURL &url);
 
private:
    KMimeTypeResolver<KFileIconViewItem,KFileIconView> *m_resolver;
 
    TQLabel *toolTip;
    int th;
    int myIconSize;
 
    virtual void insertItem(TQIconViewItem *a, TQIconViewItem *b) { TDEIconView::insertItem(a, b); }
    virtual void setSelectionMode(TQIconView::SelectionMode m) { TDEIconView::setSelectionMode(m); }
    virtual void setSelected(TQIconViewItem *i, bool a, bool b) { TDEIconView::setSelected(i, a, b); }
 
    bool canPreview( const KFileItem * ) const;
    void stopPreview();
 
    void updateIcons();
 
    inline KFileIconViewItem * viewItem( const KFileItem *item ) const {
        if ( item )
            return (KFileIconViewItem *) item->extraData( this );
        return 0L;
    }
 
    void initItem(KFileIconViewItem *item, const KFileItem *i,
                  bool updateTextAndPixmap );
 
protected:
    virtual void virtual_hook( int id, void* data );
private:
    class KFileIconViewPrivate;
    KFileIconViewPrivate *d;
};
 
#endif // TDEFILESIMPLEVIEW_H