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Simple Filemanager
This example implements a simple and not fully functional file manager using a widget derived from QIconView to display the current directory. To display the directory tree the widget written in the dirview example is used.
Header file of the file icon view:
/**************************************************************************** ** $Id: qt/qfileiconview.h 3.0.5 edited Oct 12 2001 $ ** ** Copyright (C) 1992-2000 Trolltech AS. All rights reserved. ** ** This file is part of an example program for Qt. This example ** program may be used, distributed and modified without limitation. ** *****************************************************************************/ #ifndef QTFILEICONVIEW_H #define QTFILEICONVIEW_H #include <qiconset.h> #include <qstring.h> #include <qfileinfo.h> #include <qdir.h> #include <qtimer.h> #include <qiconview.h> class QtFileIconView; class QDragObject; class QResizeEvent; /***************************************************************************** * * Class QtFileIconDrag * *****************************************************************************/ class QtFileIconDrag : public QIconDrag { Q_OBJECT public: QtFileIconDrag( QWidget * dragSource, const char* name = 0 ); const char* format( int i ) const; QByteArray encodedData( const char* mime ) const; static bool canDecode( QMimeSource* e ); void append( const QIconDragItem &item, const QRect &pr, const QRect &tr, const QString &url ); private: QStringList urls; }; /***************************************************************************** * * Class QtFileIconView * *****************************************************************************/ class QtFileIconViewItem; class QtFileIconView : public QIconView { Q_OBJECT public: QtFileIconView( const QString &dir, QWidget *parent = 0, const char *name = 0 ); enum ViewMode { Large, Small }; void setViewMode( ViewMode m ); ViewMode viewMode() const { return vm; } void setOpenItem( QtFileIconViewItem *i ) { openItem = i; } public slots: void setDirectory( const QString &dir ); void setDirectory( const QDir &dir ); void newDirectory(); QDir currentDir(); signals: void directoryChanged( const QString & ); void startReadDir( int dirs ); void readNextDir(); void readDirDone(); void enableUp(); void disableUp(); void enableMkdir(); void disableMkdir(); protected slots: void itemDoubleClicked( QIconViewItem *i ); void slotDropped( QDropEvent *e, const QValueList<QIconDragItem> & ); void viewLarge(); void viewSmall(); void viewBottom(); void viewRight(); void flowEast(); void flowSouth(); void itemTextTruncate(); void itemTextWordWrap(); void sortAscending(); void sortDescending(); void arrangeItemsInGrid() { QIconView::arrangeItemsInGrid( TRUE ); } void slotRightPressed( QIconViewItem *item ); void openFolder(); protected: void readDir( const QDir &dir ); virtual QDragObject *dragObject(); virtual void keyPressEvent( QKeyEvent *e ); QDir viewDir; int newFolderNum; QSize sz; QPixmap pix; ViewMode vm; QtFileIconViewItem *openItem; }; /***************************************************************************** * * Class QtFileIconViewItem * *****************************************************************************/ class QtFileIconViewItem : public QIconViewItem { friend class QtFileIconView; public: enum ItemType { File = 0, Dir, Link }; QtFileIconViewItem( QtFileIconView *parent, QFileInfo *fi ); virtual ~QtFileIconViewItem(); ItemType type() const { return itemType; } QString filename() const { return itemFileName; } virtual bool acceptDrop( const QMimeSource *e ) const; virtual void setText( const QString &text ); virtual QPixmap *pixmap() const; virtual void dragEntered(); virtual void dragLeft(); void viewModeChanged( QtFileIconView::ViewMode m ); void paintItem( QPainter *p, const QColorGroup &cg ); protected: virtual void dropped( QDropEvent *e, const QValueList<QIconDragItem> & ); QString itemFileName; QFileInfo *itemFileInfo; ItemType itemType; bool checkSetText; QTimer timer; QtFileIconView::ViewMode vm; }; #endif
Implementation of the file icon view:
/**************************************************************************** ** $Id: qt/qfileiconview.cpp 3.0.5 edited Oct 12 2001 $ ** ** Copyright (C) 1992-2000 Trolltech AS. All rights reserved. ** ** This file is part of an example program for Qt. This example ** program may be used, distributed and modified without limitation. ** *****************************************************************************/ #include "qfileiconview.h" #include <qpainter.h> #include <qstringlist.h> #include <qpixmap.h> #include <qmime.h> #include <qstrlist.h> #include <qdragobject.h> #include <qmessagebox.h> #include <qevent.h> #include <qpopupmenu.h> #include <qcursor.h> #include <qapplication.h> #include <qwmatrix.h> #include <stdlib.h> static const char * file_icon[]={ "32 32 17 1", "# c #000000", "a c #ffffff", "j c #808080", "n c #a0a0a4", "g c #c0c0c0", "m c #004000", "o c #000000", "l c #004040", "k c #404000", "i c #c0c000", "h c #ffff00", "b c #ffffc0", "e c #ff8000", "f c #c05800", "c c #ffa858", "d c #ffdca8", ". c None", "................................", "................................", "................................", "................................", ".............#....###...........", "...###......#a##.#aba##.........", "..#cdb#....#aaaa#aaaaaa##.......", "..#ecdb#..#aaaa#aaaaaaaba##.....", "..#fecdb##aaaa#aaaaaaaaaaab##...", "...#fecdb#aaa#aaaaaaabaabaaaa##.", "....#fecdb#a#baaaaa#baaaaaabaaa#", ".....#fecdb#aaaaab#a##baaaaaaa#.", ".....##fecdb#bbba#aaaa##baaab#..", "....#bb#fecdb#ba#aaaaaaa##aa#...", "...#bbbb#fecdb##aaabaaaaaa##....", "..#bbbb#b#fecdb#aaaaaaabaaaa##..", ".#bbbb#bbb#fecdg#aaaaaaaaaaaba#.", "#hhbb#bbbbb#fegg#iiaaaaaaaaaaaa#", "#jhhhklibbbk#ggj#aaiiaaaaaaaaa#j", ".#mjhhhkmikab####aaabiiaaaaaa#j.", "...##jhhhmaaibbaaiibaaaiiaab#n..", ".....##j#baaaiiabaaiibaabaa#n...", "......##baibaabiibaaaiiabb#j....", "......#bbbbiiaabbiiaaaaabon.....", ".....#bbbbbbbiiabbaiiaab#n......", ".....#jbbbbbbbbiibaabba#n.......", "......##jbbbbbbbbiiaabmj........", "........##jbbbbbbbbbb#j.........", "..........##nbbbbbbbmj..........", "............##jbbbb#j...........", "..............#mjj#n............", "................##n............."}; static const char * folder_icon[]={ "32 32 11 1", "# c #000000", "b c #c0c000", "d c #585858", "a c #ffff00", "i c #400000", "h c #a0a0a4", "e c #000000", "c c #ffffff", "f c #303030", "g c #c0c0c0", ". c None", "...###..........................", "...#aa##........................", ".###baaa##......................", ".#cde#baaa##....................", ".#cccdeebaaa##..##f.............", ".#cccccdeebaaa##aaa##...........", ".#cccccccdeebaaaaaaaa##.........", ".#cccccccccdeebababaaa#.........", ".#cccccgcgghhebbbbbbbaa#........", ".#ccccccgcgggdebbbbbbba#........", ".#cccgcgcgcgghdeebiebbba#.......", ".#ccccgcggggggghdeddeeba#.......", ".#cgcgcgcggggggggghghdebb#......", ".#ccgcggggggggghghghghd#b#......", ".#cgcgcggggggggghghghhd#b#......", ".#gcggggggggghghghhhhhd#b#......", ".#cgcggggggggghghghhhhd#b#......", ".#ggggggggghghghhhhhhhdib#......", ".#gggggggggghghghhhhhhd#b#......", ".#hhggggghghghhhhhhhhhd#b#......", ".#ddhhgggghghghhhhhhhhd#b#......", "..##ddhhghghhhhhhhhhhhdeb#......", "....##ddhhhghhhhhhhhhhd#b#......", "......##ddhhhhhhhhhhhhd#b#......", "........##ddhhhhhhhhhhd#b#......", "..........##ddhhhhhhhhd#b#......", "............##ddhhhhhhd#b###....", "..............##ddhhhhd#b#####..", "................##ddhhd#b######.", "..................##dddeb#####..", "....................##d#b###....", "......................####......"}; static const char * link_icon[]={ "32 32 12 1", "# c #000000", "h c #a0a0a4", "b c #c00000", "d c #585858", "i c #400000", "c c #ffffff", "e c #000000", "g c #c0c0c0", "a c #ff0000", "f c #303030", "n c white", ". c None", "...###..........................", "...#aa##........................", ".###baaa##......................", ".#cde#baaa##....................", ".#cccdeebaaa##..##f.............", ".#cccccdeebaaa##aaa##...........", ".#cccccccdeebaaaaaaaa##.........", ".#cccccccccdeebababaaa#.........", ".#cccccgcgghhebbbbbbbaa#........", ".#ccccccgcgggdebbbbbbba#........", ".#cccgcgcgcgghdeebiebbba#.......", ".#ccccgcggggggghdeddeeba#.......", ".#cgcgcgcggggggggghghdebb#......", ".#ccgcggggggggghghghghd#b#......", ".#cgcgcggggggggghghghhd#b#......", ".#gcggggggggghghghhhhhd#b#......", ".#cgcggggggggghghghhhhd#b#......", ".#ggggggggghghghhhhhhhdib#......", ".#gggggggggghghghhhhhhd#b#......", ".#hhggggghghghhhhhhhhhd#b#......", ".#ddhhgggghghghhhhhhhhd#b#......", "..##ddhhghghhhhhhhhhhhdeb#......", "############hhhhhhhhhhd#b#......", "#nnnnnnnnnn#hhhhhhhhhhd#b#......", "#nnnnnnnnnn#hhhhhhhhhhd#b#......", "#nn#nn#nnnn#ddhhhhhhhhd#b#......", "#nn##n##nnn###ddhhhhhhd#b###....", "#nnn#####nn#..##ddhhhhd#b#####..", "#nnnnn##nnn#....##ddhhd#b######.", "#nnnnn#nnnn#......##dddeb#####..", "#nnnnnnnnnn#........##d#b###....", "############..........####......"}; static const char * folder_locked_icon[]={ "32 32 12 1", "# c #000000", "g c #808080", "h c #c0c0c0", "f c #c05800", "c c #ffffff", "d c #585858", "b c #ffa858", "a c #ffdca8", "e c #000000", "i c #a0a0a4", "j c #c0c0c0", ". c None", "...###..........................", "...#aa##........................", ".###baaa##......................", ".#cde#baaa##....................", ".#cccdeeba#######...............", ".#cccccde##fffff##..............", ".#cccccc##fffgggg#..............", ".#ccccccc#ffg####a##............", ".#ccccchc#ffg#eebbaa##..........", ".#ccccccc#ffg#ddeebbba##........", ".#ccchccc#ffg#ihddeebbba##......", ".#cccccaa#ffg#ihhhddeeba##......", ".#chchhbbaafg#ihhhihidebb#......", ".#cchccbbbbaa#ihhihihid#b#......", ".#chchhbb#bbbaaiihihiid#b#......", ".#hchhcbb#fbbbafhiiiiid#b#......", ".#chchhbb#ffgbbfihiiiid#b#......", ".#hhhhhbb#ffg#bfiiiiiid#b#......", ".#hhhhhbbaffg#bfiiiiiid#b#......", ".#iihhhjbbaab#bfiiiiiid#b#......", ".#ddiihhh#bbbabfiiiiiid#b#......", "..##ddiih#ffbbbfiiiiiid#b#......", "....##ddi#ffg#biiiiiiid#b#......", "......##d#ffg#iiiiiiiid#b#......", "........##ffg#iiiiiiiid#b#......", ".........#ffg#iiiiiiiid#b#......", ".........#ffg#ddiiiiiid#b###....", ".........##fg###ddiiiid#b#####..", "...........####.##ddiid#b######.", "..................##dddeb#####..", "....................##d#b###....", "......................####......"}; static QPixmap *iconFolderLockedLarge = 0; static QPixmap *iconFolderLarge = 0; static QPixmap *iconFileLarge = 0; static QPixmap *iconLinkLarge = 0; static QPixmap *iconFolderLockedSmall = 0; static QPixmap *iconFolderSmall = 0; static QPixmap *iconFileSmall = 0; static QPixmap *iconLinkSmall = 0; static void cleanup() { delete iconFolderLockedLarge; iconFolderLockedLarge = 0; delete iconFolderLarge; iconFolderLarge = 0; delete iconFileLarge; iconFileLarge = 0; delete iconLinkLarge; iconLinkLarge = 0; delete iconFolderLockedSmall; iconFolderLockedSmall = 0; delete iconFolderSmall; iconFolderSmall = 0; delete iconFileSmall; iconFileSmall = 0; delete iconLinkSmall; iconLinkSmall = 0; } /***************************************************************************** * * Class QtFileIconDrag * *****************************************************************************/ QtFileIconDrag::QtFileIconDrag( QWidget * dragSource, const char* name ) : QIconDrag( dragSource, name ) { } const char* QtFileIconDrag::format( int i ) const { if ( i == 0 ) return "application/x-qiconlist"; else if ( i == 1 ) return "text/uri-list"; else return 0; } QByteArray QtFileIconDrag::encodedData( const char* mime ) const { QByteArray a; if ( QString( mime ) == "application/x-qiconlist" ) { a = QIconDrag::encodedData( mime ); } else if ( QString( mime ) == "text/uri-list" ) { QString s = urls.join( "\r\n" ); a.resize( s.length() ); memcpy( a.data(), s.latin1(), s.length() ); } return a; } bool QtFileIconDrag::canDecode( QMimeSource* e ) { return e->provides( "application/x-qiconlist" ) || e->provides( "text/uri-list" ); } void QtFileIconDrag::append( const QIconDragItem &item, const QRect &pr, const QRect &tr, const QString &url ) { QIconDrag::append( item, pr, tr ); urls << url; } /***************************************************************************** * * Class QtFileIconViewItem * *****************************************************************************/ QtFileIconViewItem::QtFileIconViewItem( QtFileIconView *parent, QFileInfo *fi ) : QIconViewItem( parent, fi->fileName() ), itemFileName( fi->filePath() ), itemFileInfo( fi ), checkSetText( FALSE ) { vm = QtFileIconView::Large; if ( itemFileInfo->isDir() ) itemType = Dir; else if ( itemFileInfo->isFile() ) itemType = File; if ( itemFileInfo->isSymLink() ) itemType = Link; viewModeChanged( ( (QtFileIconView*)iconView() )->viewMode() ); if ( itemFileInfo->fileName() == "." || itemFileInfo->fileName() == ".." ) setRenameEnabled( FALSE ); checkSetText = TRUE; QObject::connect( &timer, SIGNAL( timeout() ), iconView(), SLOT( openFolder() ) ); } void QtFileIconViewItem::paintItem( QPainter *p, const QColorGroup &cg ) { if ( itemFileInfo->isSymLink() ) { QFont f( p->font() ); f.setItalic( TRUE ); p->setFont( f ); } QIconViewItem::paintItem( p, cg ); } void QtFileIconViewItem::viewModeChanged( QtFileIconView::ViewMode m ) { vm = m; setDropEnabled( itemType == Dir && QDir( itemFileName ).isReadable() ); calcRect(); } QPixmap *QtFileIconViewItem::pixmap() const { switch ( itemType ) { case Dir: { if ( !QDir( itemFileName ).isReadable() ) { if ( vm == QtFileIconView::Small ) return iconFolderLockedSmall; else return iconFolderLockedLarge; } else { if ( vm == QtFileIconView::Small ) return iconFolderSmall; else return iconFolderLarge; } } case Link: { if ( vm == QtFileIconView::Small ) return iconLinkSmall; else return iconLinkLarge; } default: { if ( vm == QtFileIconView::Small ) return iconFileSmall; else return iconFileLarge; } } } QtFileIconViewItem::~QtFileIconViewItem() { delete itemFileInfo; } void QtFileIconViewItem::setText( const QString &text ) { if ( checkSetText ) { if ( text == "." || text == "." || text.isEmpty() ) return; QDir dir( itemFileInfo->dir() ); if ( dir.rename( itemFileInfo->fileName(), text ) ) { itemFileName = itemFileInfo->dirPath( TRUE ) + "/" + text; delete itemFileInfo; itemFileInfo = new QFileInfo( itemFileName ); QIconViewItem::setText( text ); } } else { QIconViewItem::setText( text ); } } bool QtFileIconViewItem::acceptDrop( const QMimeSource *e ) const { if ( type() == Dir && e->provides( "text/uri-list" ) && dropEnabled() ) return TRUE; return FALSE; } void QtFileIconViewItem::dropped( QDropEvent *e, const QValueList<QIconDragItem> & ) { timer.stop(); if ( !QUriDrag::canDecode( e ) ) { e->ignore(); return; } QStrList lst; QUriDrag::decode( e, lst ); QString str; if ( e->action() == QDropEvent::Copy ) str = "Copy\n\n"; else str = "Move\n\n"; for ( uint i = 0; i < lst.count(); ++i ) str += QString( " %1\n" ).arg( lst.at( i ) ); str += QString( "\n" "To\n\n" " %1" ).arg( filename() ); QMessageBox::information( iconView(), e->action() == QDropEvent::Copy ? "Copy" : "Move" , str, "Not Implemented" ); if ( e->action() == QDropEvent::Move ) QMessageBox::information( iconView(), "Remove" , str, "Not Implemented" ); e->acceptAction(); } void QtFileIconViewItem::dragEntered() { if ( type() != Dir || type() == Dir && !QDir( itemFileName ).isReadable() ) return; ( (QtFileIconView*)iconView() )->setOpenItem( this ); timer.start( 1500 ); } void QtFileIconViewItem::dragLeft() { if ( type() != Dir || type() == Dir && !QDir( itemFileName ).isReadable() ) return; timer.stop(); } /***************************************************************************** * * Class QtFileIconView * *****************************************************************************/ QtFileIconView::QtFileIconView( const QString &dir, QWidget *parent, const char *name ) : QIconView( parent, name ), viewDir( dir ), newFolderNum( 0 ) { if ( !iconFolderLockedLarge ) { qAddPostRoutine( cleanup ); QWMatrix m; m.scale( 0.6, 0.6 ); QPixmap iconpix( folder_locked_icon ); iconFolderLockedLarge = new QPixmap( folder_locked_icon ); iconpix = iconpix.xForm( m ); iconFolderLockedSmall = new QPixmap( iconpix ); iconpix = QPixmap( folder_icon ); iconFolderLarge = new QPixmap( folder_icon ); iconpix = iconpix.xForm( m ); iconFolderSmall = new QPixmap( iconpix ); iconpix = QPixmap( file_icon ); iconFileLarge = new QPixmap( file_icon ); iconpix = iconpix.xForm( m ); iconFileSmall = new QPixmap( iconpix ); iconpix = QPixmap( link_icon ); iconLinkLarge = new QPixmap( link_icon ); iconpix = iconpix.xForm( m ); iconLinkSmall = new QPixmap( iconpix ); } vm = Large; setGridX( 75 ); setResizeMode( Adjust ); setWordWrapIconText( FALSE ); connect( this, SIGNAL( doubleClicked( QIconViewItem * ) ), this, SLOT( itemDoubleClicked( QIconViewItem * ) ) ); connect( this, SIGNAL( returnPressed( QIconViewItem * ) ), this, SLOT( itemDoubleClicked( QIconViewItem * ) ) ); connect( this, SIGNAL( dropped( QDropEvent *, const QValueList<QIconDragItem> & ) ), this, SLOT( slotDropped( QDropEvent *, const QValueList<QIconDragItem> & ) ) ); connect( this, SIGNAL( contextMenuRequested( QIconViewItem *, const QPoint & ) ), this, SLOT( slotRightPressed( QIconViewItem * ) ) ); setHScrollBarMode( AlwaysOff ); setVScrollBarMode( Auto ); setAutoArrange( TRUE ); setSorting( TRUE ); openItem = 0; } void QtFileIconView::openFolder() { if ( !openItem ) return; if ( openItem->type() != QtFileIconViewItem::Dir || openItem->type() == QtFileIconViewItem::Dir && !QDir( openItem->itemFileName ).isReadable() ) return; openItem->timer.stop(); setDirectory( openItem->itemFileName ); } void QtFileIconView::setDirectory( const QString &dir ) { viewDir = QDir( dir ); readDir( viewDir ); } void QtFileIconView::setDirectory( const QDir &dir ) { viewDir = dir; readDir( viewDir ); } void QtFileIconView::newDirectory() { setAutoArrange( FALSE ); selectAll( FALSE ); if ( viewDir.mkdir( QString( "New Folder %1" ).arg( ++newFolderNum ) ) ) { QFileInfo *fi = new QFileInfo( viewDir, QString( "New Folder %1" ).arg( newFolderNum ) ); QtFileIconViewItem *item = new QtFileIconViewItem( this, new QFileInfo( *fi ) ); item->setKey( QString( "000000%1" ).arg( fi->fileName() ) ); delete fi; repaintContents( contentsX(), contentsY(), contentsWidth(), contentsHeight(), FALSE ); ensureItemVisible( item ); item->setSelected( TRUE, TRUE ); setCurrentItem( item ); repaintItem( item ); qApp->processEvents(); item->rename(); } setAutoArrange( TRUE ); } QDir QtFileIconView::currentDir() { return viewDir; } static bool isRoot( const QString &s ) { #if defined(Q_OS_UNIX) if ( s == "/" ) return TRUE; #elif defined(Q_OS_WIN32) QString p = s; if ( p.length() == 3 && p.right( 2 ) == ":/" ) return TRUE; if ( p[ 0 ] == '/' && p[ 1 ] == '/' ) { int slashes = p.contains( '/' ); if ( slashes <= 3 ) return TRUE; if ( slashes == 4 && p[ (int)p.length() - 1 ] == '/' ) return TRUE; } #endif return FALSE; } void QtFileIconView::readDir( const QDir &dir ) { if ( !dir.isReadable() ) return; if ( isRoot( dir.absPath() ) ) emit disableUp(); else emit enableUp(); clear(); emit directoryChanged( dir.absPath() ); const QFileInfoList *filist = dir.entryInfoList( QDir::DefaultFilter, QDir::DirsFirst | QDir::Name ); emit startReadDir( filist->count() ); QFileInfoListIterator it( *filist ); QFileInfo *fi; bool allowRename = FALSE, allowRenameSet = FALSE; while ( ( fi = it.current() ) != 0 ) { ++it; if ( fi && fi->fileName() == ".." && ( fi->dirPath() == "/" || fi->dirPath().isEmpty() ) ) continue; emit readNextDir(); QtFileIconViewItem *item = new QtFileIconViewItem( this, new QFileInfo( *fi ) ); if ( fi->isDir() ) item->setKey( QString( "000000%1" ).arg( fi->fileName() ) ); else item->setKey( fi->fileName() ); if ( !allowRenameSet ) { if ( !QFileInfo( fi->absFilePath() ).isWritable() || item->text() == "." || item->text() == ".." ) allowRename = FALSE; else allowRename = TRUE; if ( item->text() == "." || item->text() == ".." ) allowRenameSet = FALSE; else allowRenameSet = TRUE; } item->setRenameEnabled( allowRename ); } if ( !QFileInfo( dir.absPath() ).isWritable() ) emit disableMkdir(); else emit enableMkdir(); emit readDirDone(); } void QtFileIconView::itemDoubleClicked( QIconViewItem *i ) { QtFileIconViewItem *item = ( QtFileIconViewItem* )i; if ( item->type() == QtFileIconViewItem::Dir ) { viewDir = QDir( item->filename() ); readDir( viewDir ); } else if ( item->type() == QtFileIconViewItem::Link && QFileInfo( QFileInfo( item->filename() ).readLink() ).isDir() ) { viewDir = QDir( QFileInfo( item->filename() ).readLink() ); readDir( viewDir ); } } QDragObject *QtFileIconView::dragObject() { if ( !currentItem() ) return 0; QPoint orig = viewportToContents( viewport()->mapFromGlobal( QCursor::pos() ) ); QtFileIconDrag *drag = new QtFileIconDrag( viewport() ); drag->setPixmap( *currentItem()->pixmap(), QPoint( currentItem()->pixmapRect().width() / 2, currentItem()->pixmapRect().height() / 2 ) ); for ( QtFileIconViewItem *item = (QtFileIconViewItem*)firstItem(); item; item = (QtFileIconViewItem*)item->nextItem() ) { if ( item->isSelected() ) { QIconDragItem id; id.setData( QCString( item->filename() ) ); drag->append( id, QRect( item->pixmapRect( FALSE ).x() - orig.x(), item->pixmapRect( FALSE ).y() - orig.y(), item->pixmapRect().width(), item->pixmapRect().height() ), QRect( item->textRect( FALSE ).x() - orig.x(), item->textRect( FALSE ).y() - orig.y(), item->textRect().width(), item->textRect().height() ), QString( item->filename() ) ); } } return drag; } void QtFileIconView::keyPressEvent( QKeyEvent *e ) { if ( e->key() == Key_N && ( e->state() & ControlButton ) ) newDirectory(); else QIconView::keyPressEvent( e ); } void QtFileIconView::slotDropped( QDropEvent *e, const QValueList<QIconDragItem> & ) { if ( openItem ) openItem->timer.stop(); if ( !QUriDrag::canDecode( e ) ) { e->ignore(); return; } QStrList lst; QUriDrag::decode( e, lst ); QString str; if ( e->action() == QDropEvent::Copy ) str = "Copy\n\n"; else str = "Move\n\n"; for ( uint i = 0; i < lst.count(); ++i ) str += QString( " %1\n" ).arg( lst.at( i ) ); str += QString( "\n" "To\n\n" " %1" ).arg( viewDir.absPath() ); QMessageBox::information( this, e->action() == QDropEvent::Copy ? "Copy" : "Move" , str, "Not Implemented" ); if ( e->action() == QDropEvent::Move ) QMessageBox::information( this, "Remove" , str, "Not Implemented" ); e->acceptAction(); openItem = 0; } void QtFileIconView::viewLarge() { setViewMode( Large ); } void QtFileIconView::viewSmall() { setViewMode( Small ); } void QtFileIconView::viewBottom() { setItemTextPos( Bottom ); } void QtFileIconView::viewRight() { setItemTextPos( Right ); } void QtFileIconView::flowEast() { setHScrollBarMode( AlwaysOff ); setVScrollBarMode( Auto ); setArrangement( LeftToRight ); } void QtFileIconView::flowSouth() { setVScrollBarMode( AlwaysOff ); setHScrollBarMode( Auto ); setArrangement( TopToBottom ); } void QtFileIconView::sortAscending() { sort( TRUE ); } void QtFileIconView::sortDescending() { sort( FALSE ); } void QtFileIconView::itemTextTruncate() { setWordWrapIconText( FALSE ); } void QtFileIconView::itemTextWordWrap() { setWordWrapIconText( TRUE ); } void QtFileIconView::slotRightPressed( QIconViewItem *item ) { if ( !item ) { // right pressed on viewport QPopupMenu menu( this ); menu.insertItem( "&Large view", this, SLOT( viewLarge() ) ); menu.insertItem( "&Small view", this, SLOT( viewSmall() ) ); menu.insertSeparator(); menu.insertItem( "Text at the &bottom", this, SLOT( viewBottom() ) ); menu.insertItem( "Text at the &right", this, SLOT( viewRight() ) ); menu.insertSeparator(); menu.insertItem( "Arrange l&eft to right", this, SLOT( flowEast() ) ); menu.insertItem( "Arrange t&op to bottom", this, SLOT( flowSouth() ) ); menu.insertSeparator(); menu.insertItem( "&Truncate item text", this, SLOT( itemTextTruncate() ) ); menu.insertItem( "&Wordwrap item text", this, SLOT( itemTextWordWrap() ) ); menu.insertSeparator(); menu.insertItem( "Arrange items in &grid", this, SLOT( arrangeItemsInGrid() ) ); menu.insertSeparator(); menu.insertItem( "Sort &ascending", this, SLOT( sortAscending() ) ); menu.insertItem( "Sort &descending", this, SLOT( sortDescending() ) ); menu.setMouseTracking( TRUE ); menu.exec( QCursor::pos() ); } else { // on item QPopupMenu menu( this ); int RENAME_ITEM = menu.insertItem( "Rename Item" ); int REMOVE_ITEM = menu.insertItem( "Remove Item" ); menu.setMouseTracking( TRUE ); int id = menu.exec( QCursor::pos() ); if ( id == -1 ) return; if ( id == RENAME_ITEM && item->renameEnabled() ) { item->rename(); } else if ( id == REMOVE_ITEM ) { delete item; QMessageBox::information( this, "Not implemented!", "Deleting files not implemented yet,\n" "The item has only been removed from the view! " ); } } } void QtFileIconView::setViewMode( ViewMode m ) { if ( m == vm ) return; vm = m; QtFileIconViewItem *item = (QtFileIconViewItem*)firstItem(); for ( ; item; item = (QtFileIconViewItem*)item->nextItem() ) item->viewModeChanged( vm ); arrangeItemsInGrid(); }
Header file of the main window:
/**************************************************************************** ** $Id: qt/mainwindow.h 3.0.5 edited Oct 12 2001 $ ** ** Copyright (C) 1992-2000 Trolltech AS. All rights reserved. ** ** This file is part of an example program for Qt. This example ** program may be used, distributed and modified without limitation. ** *****************************************************************************/ #ifndef MAINWIN_H #define MAINWIN_H #include <qmainwindow.h> class QtFileIconView; class DirectoryView; class QProgressBar; class QLabel; class QComboBox; class QToolButton; class FileMainWindow : public QMainWindow { Q_OBJECT public: FileMainWindow(); QtFileIconView *fileView() { return fileview; } DirectoryView *dirList() { return dirlist; } void show(); protected: void setup(); void setPathCombo(); QtFileIconView *fileview; DirectoryView *dirlist; QProgressBar *progress; QLabel *label; QComboBox *pathCombo; QToolButton *upButton, *mkdirButton; protected slots: void directoryChanged( const QString & ); void slotStartReadDir( int dirs ); void slotReadNextDir(); void slotReadDirDone(); void cdUp(); void newFolder(); void changePath( const QString &path ); void enableUp(); void disableUp(); void enableMkdir(); void disableMkdir(); }; #endif
Implementation of the main window:
/**************************************************************************** ** $Id: qt/mainwindow.cpp 3.0.5 edited Oct 12 2001 $ ** ** Copyright (C) 1992-2000 Trolltech AS. All rights reserved. ** ** This file is part of an example program for Qt. This example ** program may be used, distributed and modified without limitation. ** *****************************************************************************/ #include "mainwindow.h" #include "qfileiconview.h" #include "../dirview/dirview.h" #include <qsplitter.h> #include <qprogressbar.h> #include <qlabel.h> #include <qstatusbar.h> #include <qtoolbar.h> #include <qcombobox.h> #include <qpixmap.h> #include <qtoolbutton.h> #include <qdir.h> #include <qfileinfo.h> static const char* cdtoparent_xpm[]={ "15 13 3 1", ". c None", "* c #000000", "a c #ffff99", "..*****........", ".*aaaaa*.......", "***************", "*aaaaaaaaaaaaa*", "*aaaa*aaaaaaaa*", "*aaa***aaaaaaa*", "*aa*****aaaaaa*", "*aaaa*aaaaaaaa*", "*aaaa*aaaaaaaa*", "*aaaa******aaa*", "*aaaaaaaaaaaaa*", "*aaaaaaaaaaaaa*", "***************"}; static const char* newfolder_xpm[] = { "15 14 4 1", " c None", ". c #000000", "+ c #FFFF00", "@ c #FFFFFF", " . ", " ", " . ", " . . ", " .... . . . ", " .+@+@. . . ", ".......... . .", ".@+@+@+@+@.. ", ".+@+@+@+@+. . ", ".@+@+@+@+@. . ", ".+@+@+@+@+. ", ".@+@+@+@+@. ", ".+@+@+@+@+. ", "........... "}; FileMainWindow::FileMainWindow() : QMainWindow() { setup(); } void FileMainWindow::show() { QMainWindow::show(); } void FileMainWindow::setup() { QSplitter *splitter = new QSplitter( this ); dirlist = new DirectoryView( splitter, "dirlist", TRUE ); dirlist->addColumn( "Name" ); dirlist->addColumn( "Type" ); Directory *root = new Directory( dirlist, "/" ); root->setOpen( TRUE ); splitter->setResizeMode( dirlist, QSplitter::KeepSize ); fileview = new QtFileIconView( "/", splitter ); fileview->setSelectionMode( QIconView::Extended ); setCentralWidget( splitter ); QToolBar *toolbar = new QToolBar( this, "toolbar" ); setRightJustification( TRUE ); (void)new QLabel( tr( " Path: " ), toolbar ); pathCombo = new QComboBox( TRUE, toolbar ); pathCombo->setAutoCompletion( TRUE ); toolbar->setStretchableWidget( pathCombo ); connect( pathCombo, SIGNAL( activated( const QString & ) ), this, SLOT ( changePath( const QString & ) ) ); toolbar->addSeparator(); QPixmap pix; pix = QPixmap( cdtoparent_xpm ); upButton = new QToolButton( pix, "One directory up", QString::null, this, SLOT( cdUp() ), toolbar, "cd up" ); pix = QPixmap( newfolder_xpm ); mkdirButton = new QToolButton( pix, "New Folder", QString::null, this, SLOT( newFolder() ), toolbar, "new folder" ); connect( dirlist, SIGNAL( folderSelected( const QString & ) ), fileview, SLOT ( setDirectory( const QString & ) ) ); connect( fileview, SIGNAL( directoryChanged( const QString & ) ), this, SLOT( directoryChanged( const QString & ) ) ); connect( fileview, SIGNAL( startReadDir( int ) ), this, SLOT( slotStartReadDir( int ) ) ); connect( fileview, SIGNAL( readNextDir() ), this, SLOT( slotReadNextDir() ) ); connect( fileview, SIGNAL( readDirDone() ), this, SLOT( slotReadDirDone() ) ); setDockEnabled( DockLeft, FALSE ); setDockEnabled( DockRight, FALSE ); label = new QLabel( statusBar() ); statusBar()->addWidget( label, 2, TRUE ); progress = new QProgressBar( statusBar() ); statusBar()->addWidget( progress, 1, TRUE ); connect( fileview, SIGNAL( enableUp() ), this, SLOT( enableUp() ) ); connect( fileview, SIGNAL( disableUp() ), this, SLOT( disableUp() ) ); connect( fileview, SIGNAL( enableMkdir() ), this, SLOT( enableMkdir() ) ); connect( fileview, SIGNAL( disableMkdir() ), this, SLOT( disableMkdir() ) ); } void FileMainWindow::setPathCombo() { QString dir = caption(); int i = 0; bool found = FALSE; for ( i = 0; i < pathCombo->count(); ++i ) { if ( pathCombo->text( i ) == dir) { found = TRUE; break; } } if ( found ) pathCombo->setCurrentItem( i ); else { pathCombo->insertItem( dir ); pathCombo->setCurrentItem( pathCombo->count() - 1 ); } } void FileMainWindow::directoryChanged( const QString &dir ) { setCaption( dir ); setPathCombo(); } void FileMainWindow::slotStartReadDir( int dirs ) { label->setText( tr( " Reading Directory..." ) ); progress->reset(); progress->setTotalSteps( dirs ); } void FileMainWindow::slotReadNextDir() { int p = progress->progress(); progress->setProgress( ++p ); } void FileMainWindow::slotReadDirDone() { label->setText( tr( " Reading Directory Done." ) ); progress->setProgress( progress->totalSteps() ); } void FileMainWindow::cdUp() { QDir dir = fileview->currentDir(); dir.cd( ".." ); fileview->setDirectory( dir ); } void FileMainWindow::newFolder() { fileview->newDirectory(); } void FileMainWindow::changePath( const QString &path ) { if ( QFileInfo( path ).exists() ) fileview->setDirectory( path ); else setPathCombo(); } void FileMainWindow::enableUp() { upButton->setEnabled( TRUE ); } void FileMainWindow::disableUp() { upButton->setEnabled( FALSE ); } void FileMainWindow::enableMkdir() { mkdirButton->setEnabled( TRUE ); } void FileMainWindow::disableMkdir() { mkdirButton->setEnabled( FALSE ); }
Main:
/**************************************************************************** ** $Id: qt/main.cpp 3.0.5 edited Oct 12 2001 $ ** ** Copyright (C) 1992-2000 Trolltech AS. All rights reserved. ** ** This file is part of an example program for Qt. This example ** program may be used, distributed and modified without limitation. ** *****************************************************************************/ #include "mainwindow.h" #include "qfileiconview.h" #include <qapplication.h> int main( int argc, char **argv ) { QApplication a( argc, argv ); FileMainWindow mw; mw.resize( 680, 480 ); a.setMainWidget( &mw ); mw.fileView()->setDirectory( "/" ); mw.show(); return a.exec(); }
See also Examples.
| Copyright © 2002 Trolltech | Trademarks | Qt version 3.0.5
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