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-rw-r--r--examples/dirview/dirview.cpp532
1 files changed, 532 insertions, 0 deletions
diff --git a/examples/dirview/dirview.cpp b/examples/dirview/dirview.cpp
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+++ b/examples/dirview/dirview.cpp
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+/****************************************************************************
+**
+** Copyright (C) 1992-2008 Trolltech ASA. 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 "dirview.h"
+
+#include <qdir.h>
+#include <qfile.h>
+#include <qfileinfo.h>
+#include <qpixmap.h>
+#include <qevent.h>
+#include <qpoint.h>
+#include <qmessagebox.h>
+#include <qdragobject.h>
+#include <qmime.h>
+#include <qstrlist.h>
+#include <qstringlist.h>
+#include <qapplication.h>
+#include <qheader.h>
+
+static const char* folder_closed_xpm[]={
+ "16 16 9 1",
+ "g c #808080",
+ "b c #c0c000",
+ "e c #c0c0c0",
+ "# c #000000",
+ "c c #ffff00",
+ ". c None",
+ "a c #585858",
+ "f c #a0a0a4",
+ "d c #ffffff",
+ "..###...........",
+ ".#abc##.........",
+ ".#daabc#####....",
+ ".#ddeaabbccc#...",
+ ".#dedeeabbbba...",
+ ".#edeeeeaaaab#..",
+ ".#deeeeeeefe#ba.",
+ ".#eeeeeeefef#ba.",
+ ".#eeeeeefeff#ba.",
+ ".#eeeeefefff#ba.",
+ ".##geefeffff#ba.",
+ "...##gefffff#ba.",
+ ".....##fffff#ba.",
+ ".......##fff#b##",
+ ".........##f#b##",
+ "...........####."};
+
+static const char* folder_open_xpm[]={
+ "16 16 11 1",
+ "# c #000000",
+ "g c #c0c0c0",
+ "e c #303030",
+ "a c #ffa858",
+ "b c #808080",
+ "d c #a0a0a4",
+ "f c #585858",
+ "c c #ffdca8",
+ "h c #dcdcdc",
+ "i c #ffffff",
+ ". c None",
+ "....###.........",
+ "....#ab##.......",
+ "....#acab####...",
+ "###.#acccccca#..",
+ "#ddefaaaccccca#.",
+ "#bdddbaaaacccab#",
+ ".eddddbbaaaacab#",
+ ".#bddggdbbaaaab#",
+ "..edgdggggbbaab#",
+ "..#bgggghghdaab#",
+ "...ebhggghicfab#",
+ "....#edhhiiidab#",
+ "......#egiiicfb#",
+ "........#egiibb#",
+ "..........#egib#",
+ "............#ee#"};
+
+static const char * folder_locked[]={
+ "16 16 10 1",
+ "h c #808080",
+ "b c #ffa858",
+ "f c #c0c0c0",
+ "e c #c05800",
+ "# c #000000",
+ "c c #ffdca8",
+ ". c None",
+ "a c #585858",
+ "g c #a0a0a4",
+ "d c #ffffff",
+ "..#a#...........",
+ ".#abc####.......",
+ ".#daa#eee#......",
+ ".#ddf#e##b#.....",
+ ".#dfd#e#bcb##...",
+ ".#fdccc#daaab#..",
+ ".#dfbbbccgfg#ba.",
+ ".#ffb#ebbfgg#ba.",
+ ".#ffbbe#bggg#ba.",
+ ".#fffbbebggg#ba.",
+ ".##hf#ebbggg#ba.",
+ "...###e#gggg#ba.",
+ ".....#e#gggg#ba.",
+ "......###ggg#b##",
+ ".........##g#b##",
+ "...........####."};
+
+static const char * pix_file []={
+ "16 16 7 1",
+ "# c #000000",
+ "b c #ffffff",
+ "e c #000000",
+ "d c #404000",
+ "c c #c0c000",
+ "a c #ffffc0",
+ ". c None",
+ "................",
+ ".........#......",
+ "......#.#a##....",
+ ".....#b#bbba##..",
+ "....#b#bbbabbb#.",
+ "...#b#bba##bb#..",
+ "..#b#abb#bb##...",
+ ".#a#aab#bbbab##.",
+ "#a#aaa#bcbbbbbb#",
+ "#ccdc#bcbbcbbb#.",
+ ".##c#bcbbcabb#..",
+ "...#acbacbbbe...",
+ "..#aaaacaba#....",
+ "...##aaaaa#.....",
+ ".....##aa#......",
+ ".......##......."};
+
+QPixmap *folderLocked = 0;
+QPixmap *folderClosed = 0;
+QPixmap *folderOpen = 0;
+QPixmap *fileNormal = 0;
+
+/*****************************************************************************
+ *
+ * Class Directory
+ *
+ *****************************************************************************/
+
+Directory::Directory( Directory * parent, const QString& filename )
+ : QListViewItem( parent ), f(filename),
+ showDirsOnly( parent->showDirsOnly ),
+ pix( 0 )
+{
+ p = parent;
+ readable = QDir( fullName() ).isReadable();
+
+ if ( !readable )
+ setPixmap( folderLocked );
+ else
+ setPixmap( folderClosed );
+}
+
+
+Directory::Directory( QListView * parent, const QString& filename )
+ : QListViewItem( parent ), f(filename),
+ showDirsOnly( ( (DirectoryView*)parent )->showDirsOnly() ),
+ pix( 0 )
+{
+ p = 0;
+ readable = QDir( fullName() ).isReadable();
+}
+
+
+void Directory::setPixmap( QPixmap *px )
+{
+ pix = px;
+ setup();
+ widthChanged( 0 );
+ invalidateHeight();
+ repaint();
+}
+
+
+const QPixmap *Directory::pixmap( int i ) const
+{
+ if ( i )
+ return 0;
+ return pix;
+}
+
+void Directory::setOpen( bool o )
+{
+ if ( o )
+ setPixmap( folderOpen );
+ else
+ setPixmap( folderClosed );
+
+ if ( o && !childCount() ) {
+ QString s( fullName() );
+ QDir thisDir( s );
+ if ( !thisDir.isReadable() ) {
+ readable = FALSE;
+ setExpandable( FALSE );
+ return;
+ }
+
+ listView()->setUpdatesEnabled( FALSE );
+ const QFileInfoList * files = thisDir.entryInfoList();
+ if ( files ) {
+ QFileInfoListIterator it( *files );
+ QFileInfo * fi;
+ while( (fi=it.current()) != 0 ) {
+ ++it;
+ if ( fi->fileName() == "." || fi->fileName() == ".." )
+ ; // nothing
+ else if ( fi->isSymLink() && !showDirsOnly ) {
+ FileItem *item = new FileItem( this, fi->fileName(),
+ "Symbolic Link" );
+ item->setPixmap( fileNormal );
+ }
+ else if ( fi->isDir() )
+ (void)new Directory( this, fi->fileName() );
+ else if ( !showDirsOnly ) {
+ FileItem *item
+ = new FileItem( this, fi->fileName(),
+ fi->isFile()?"File":"Special" );
+ item->setPixmap( fileNormal );
+ }
+ }
+ }
+ listView()->setUpdatesEnabled( TRUE );
+ }
+ QListViewItem::setOpen( o );
+}
+
+
+void Directory::setup()
+{
+ setExpandable( TRUE );
+ QListViewItem::setup();
+}
+
+
+QString Directory::fullName()
+{
+ QString s;
+ if ( p ) {
+ s = p->fullName();
+ s.append( f.name() );
+ s.append( "/" );
+ } else {
+ s = f.name();
+ }
+ return s;
+}
+
+
+QString Directory::text( int column ) const
+{
+ if ( column == 0 )
+ return f.name();
+ else if ( readable )
+ return "Directory";
+ else
+ return "Unreadable Directory";
+}
+
+/*****************************************************************************
+ *
+ * Class DirectoryView
+ *
+ *****************************************************************************/
+
+DirectoryView::DirectoryView( QWidget *parent, const char *name, bool sdo )
+ : QListView( parent, name ), dirsOnly( sdo ), oldCurrent( 0 ),
+ dropItem( 0 ), mousePressed( FALSE )
+{
+ autoopen_timer = new QTimer( this );
+ if ( !folderLocked ) {
+ folderLocked = new QPixmap( folder_locked );
+ folderClosed = new QPixmap( folder_closed_xpm );
+ folderOpen = new QPixmap( folder_open_xpm );
+ fileNormal = new QPixmap( pix_file );
+ }
+
+ connect( this, SIGNAL( doubleClicked( QListViewItem * ) ),
+ this, SLOT( slotFolderSelected( QListViewItem * ) ) );
+ connect( this, SIGNAL( returnPressed( QListViewItem * ) ),
+ this, SLOT( slotFolderSelected( QListViewItem * ) ) );
+
+ setAcceptDrops( TRUE );
+ viewport()->setAcceptDrops( TRUE );
+
+ connect( autoopen_timer, SIGNAL( timeout() ),
+ this, SLOT( openFolder() ) );
+}
+
+void DirectoryView::slotFolderSelected( QListViewItem *i )
+{
+ if ( !i || !showDirsOnly() )
+ return;
+
+ Directory *dir = (Directory*)i;
+ emit folderSelected( dir->fullName() );
+}
+
+void DirectoryView::openFolder()
+{
+ autoopen_timer->stop();
+ if ( dropItem && !dropItem->isOpen() ) {
+ dropItem->setOpen( TRUE );
+ dropItem->repaint();
+ }
+}
+
+static const int autoopenTime = 750;
+
+
+void DirectoryView::contentsDragEnterEvent( QDragEnterEvent *e )
+{
+ if ( !QUriDrag::canDecode(e) ) {
+ e->ignore();
+ return;
+ }
+
+ oldCurrent = currentItem();
+
+ QListViewItem *i = itemAt( contentsToViewport(e->pos()) );
+ if ( i ) {
+ dropItem = i;
+ autoopen_timer->start( autoopenTime );
+ }
+}
+
+
+void DirectoryView::contentsDragMoveEvent( QDragMoveEvent *e )
+{
+ if ( !QUriDrag::canDecode(e) ) {
+ e->ignore();
+ return;
+ }
+
+ QPoint vp = contentsToViewport( ( (QDragMoveEvent*)e )->pos() );
+ QListViewItem *i = itemAt( vp );
+ if ( i ) {
+ setSelected( i, TRUE );
+ e->accept();
+ if ( i != dropItem ) {
+ autoopen_timer->stop();
+ dropItem = i;
+ autoopen_timer->start( autoopenTime );
+ }
+ switch ( e->action() ) {
+ case QDropEvent::Copy:
+ break;
+ case QDropEvent::Move:
+ e->acceptAction();
+ break;
+ case QDropEvent::Link:
+ e->acceptAction();
+ break;
+ default:
+ ;
+ }
+ } else {
+ e->ignore();
+ autoopen_timer->stop();
+ dropItem = 0;
+ }
+}
+
+void DirectoryView::contentsDragLeaveEvent( QDragLeaveEvent * )
+{
+ autoopen_timer->stop();
+ dropItem = 0;
+
+ setCurrentItem( oldCurrent );
+ setSelected( oldCurrent, TRUE );
+}
+
+void DirectoryView::contentsDropEvent( QDropEvent *e )
+{
+ autoopen_timer->stop();
+
+ if ( !QUriDrag::canDecode(e) ) {
+ e->ignore();
+ return;
+ }
+
+ QListViewItem *item = itemAt( contentsToViewport(e->pos()) );
+ if ( item ) {
+
+ QStrList lst;
+
+ QUriDrag::decode( e, lst );
+
+ QString str;
+
+ switch ( e->action() ) {
+ case QDropEvent::Copy:
+ str = "Copy";
+ break;
+ case QDropEvent::Move:
+ str = "Move";
+ e->acceptAction();
+ break;
+ case QDropEvent::Link:
+ str = "Link";
+ e->acceptAction();
+ break;
+ default:
+ str = "Unknown";
+ }
+
+ str += "\n\n";
+
+ e->accept();
+
+ for ( uint i = 0; i < lst.count(); ++i ) {
+ QString filename = QDir::convertSeparators(QUriDrag::uriToLocalFile(lst.at(i)));
+ str += filename + "\n";
+ }
+ str += QString( "\nTo\n\n %1" )
+ .arg( QDir::convertSeparators(fullPath(item)) );
+
+ QMessageBox::information( this, "Drop target", str, "Not implemented" );
+ } else
+ e->ignore();
+
+}
+
+
+QString DirectoryView::fullPath(QListViewItem* item)
+{
+ QString fullpath = item->text(0);
+ while ( (item=item->parent()) ) {
+ if ( item->parent() )
+ fullpath = item->text(0) + "/" + fullpath;
+ else
+ fullpath = item->text(0) + fullpath;
+ }
+#ifdef Q_WS_WIN
+ if (fullpath.length() > 2 && fullpath[1] != ':') {
+ QDir dir(fullpath);
+ fullpath = dir.currentDirPath().left(2) + fullpath;
+ }
+#endif
+
+ return fullpath;
+}
+
+void DirectoryView::contentsMousePressEvent( QMouseEvent* e )
+{
+ QListView::contentsMousePressEvent(e);
+ QPoint p( contentsToViewport( e->pos() ) );
+ QListViewItem *i = itemAt( p );
+ if ( i ) {
+ // if the user clicked into the root decoration of the item, don't try to start a drag!
+ if ( p.x() > header()->cellPos( header()->mapToActual( 0 ) ) +
+ treeStepSize() * ( i->depth() + ( rootIsDecorated() ? 1 : 0) ) + itemMargin() ||
+ p.x() < header()->cellPos( header()->mapToActual( 0 ) ) ) {
+ presspos = e->pos();
+ mousePressed = TRUE;
+ }
+ }
+}
+
+void DirectoryView::contentsMouseMoveEvent( QMouseEvent* e )
+{
+ if ( mousePressed && ( presspos - e->pos() ).manhattanLength() > QApplication::startDragDistance() ) {
+ mousePressed = FALSE;
+ QListViewItem *item = itemAt( contentsToViewport(presspos) );
+ if ( item ) {
+ QString source = fullPath(item);
+ if ( QFile::exists(source) ) {
+ QUriDrag* ud = new QUriDrag(viewport());
+ ud->setFileNames( source );
+ if ( ud->drag() )
+ QMessageBox::information( this, "Drag source",
+ QString("Delete ") + QDir::convertSeparators(source), "Not implemented" );
+ }
+ }
+ }
+}
+
+void DirectoryView::contentsMouseReleaseEvent( QMouseEvent * )
+{
+ mousePressed = FALSE;
+}
+
+void DirectoryView::setDir( const QString &s )
+{
+ QListViewItemIterator it( this );
+ ++it;
+ for ( ; it.current(); ++it ) {
+ it.current()->setOpen( FALSE );
+ }
+
+ QStringList lst( QStringList::split( "/", s ) );
+ QListViewItem *item = firstChild();
+ QStringList::Iterator it2 = lst.begin();
+ for ( ; it2 != lst.end(); ++it2 ) {
+ while ( item ) {
+ if ( item->text( 0 ) == *it2 ) {
+ item->setOpen( TRUE );
+ break;
+ }
+ item = item->itemBelow();
+ }
+ }
+
+ if ( item )
+ setCurrentItem( item );
+}
+
+void FileItem::setPixmap( QPixmap *p )
+{
+ pix = p;
+ setup();
+ widthChanged( 0 );
+ invalidateHeight();
+ repaint();
+}
+
+
+const QPixmap *FileItem::pixmap( int i ) const
+{
+ if ( i )
+ return 0;
+ return pix;
+}
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