QDir
Main:
/****************************************************************************
** $Id: qt/qdir.cpp 3.0.6 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 "../dirview/dirview.h"
#include "qdir.h"
#include <qapplication.h>
#include <qtextview.h>
#include <qfileinfo.h>
#include <qfile.h>
#include <qtextstream.h>
#include <qhbox.h>
#include <qspinbox.h>
#include <qlabel.h>
#include <qmultilineedit.h>
#include <qheader.h>
#include <qevent.h>
#include <qpainter.h>
#include <qpopupmenu.h>
#include <qpushbutton.h>
#include <qtoolbutton.h>
#include <qfile.h>
#include <qtextstream.h>
#include <qtooltip.h>
#include <stdlib.h>
/* XPM */
static const char *bookmarks[]={
"22 14 8 1",
"# c #000080",
"a c #585858",
"b c #000000",
"c c #ffffff",
"d c #ffffff",
"e c #ffffff",
"f c #000000",
". c None",
"...bb.................",
"..bacb....bbb.........",
"..badcb.bbccbab.......",
"..bacccbadccbab.......",
"..baecdbcccdbab.......",
"..bacccbacccbab.......",
"..badcdbcecdfab.......",
"..bacecbacccbab.......",
"..baccdbcccdbab.......",
"...badcbacdbbab.......",
"....bacbcbbccab.......",
".....babbaaaaab.......",
".....bbabbbbbbb.......",
"......bb.............."
};
/* XPM */
static const char *home[]={
"16 15 4 1",
"# c #000000",
"a c #ffffff",
"b c #c0c0c0",
". c None",
".......##.......",
"..#...####......",
"..#..#aabb#.....",
"..#.#aaaabb#....",
"..##aaaaaabb#...",
"..#aaaaaaaabb#..",
".#aaaaaaaaabbb#.",
"###aaaaaaaabb###",
"..#aaaaaaaabb#..",
"..#aaa###aabb#..",
"..#aaa#.#aabb#..",
"..#aaa#.#aabb#..",
"..#aaa#.#aabb#..",
"..#aaa#.#aabb#..",
"..#####.######.."
};
// ****************************************************************************************************
PixmapView::PixmapView( QWidget *parent )
: QScrollView( parent )
{
viewport()->setBackgroundMode( PaletteBase );
}
void PixmapView::setPixmap( const QPixmap &pix )
{
pixmap = pix;
resizeContents( pixmap.size().width(), pixmap.size().height() );
viewport()->repaint( FALSE );
}
void PixmapView::drawContents( QPainter *p, int cx, int cy, int cw, int ch )
{
p->fillRect( cx, cy, cw, ch, colorGroup().brush( QColorGroup::Base ) );
p->drawPixmap( 0, 0, pixmap );
}
// ****************************************************************************************************
Preview::Preview( QWidget *parent )
: QWidgetStack( parent )
{
normalText = new QMultiLineEdit( this );
normalText->setReadOnly( TRUE );
html = new QTextView( this );
pixmap = new PixmapView( this );
raiseWidget( normalText );
}
void Preview::showPreview( const QUrl &u, int size )
{
if ( u.isLocalFile() ) {
QString path = u.path();
QFileInfo fi( path );
if ( fi.isFile() && (int)fi.size() > size * 1000 ) {
normalText->setText( tr( "The File\n%1\nis too large, so I don't show it!" ).arg( path ) );
raiseWidget( normalText );
return;
}
QPixmap pix( path );
if ( pix.isNull() ) {
if ( fi.isFile() ) {
QFile f( path );
if ( f.open( IO_ReadOnly ) ) {
QTextStream ts( &f );
QString text = ts.read();
f.close();
if ( fi.extension().lower().contains( "htm" ) ) {
QString url = html->mimeSourceFactory()->makeAbsolute( path, html->context() );
html->setText( text, url );
raiseWidget( html );
return;
} else {
normalText->setText( text );
raiseWidget( normalText );
return;
}
}
}
normalText->setText( QString::null );
raiseWidget( normalText );
} else {
pixmap->setPixmap( pix );
raiseWidget( pixmap );
}
} else {
normalText->setText( "I only show local files!" );
raiseWidget( normalText );
}
}
// ****************************************************************************************************
PreviewWidget::PreviewWidget( QWidget *parent )
: QVBox( parent ), QFilePreview()
{
setSpacing( 5 );
setMargin( 5 );
QHBox *row = new QHBox( this );
row->setSpacing( 5 );
(void)new QLabel( tr( "Only show files smaller than: " ), row );
sizeSpinBox = new QSpinBox( 1, 10000, 1, row );
sizeSpinBox->setSuffix( " KB" );
sizeSpinBox->setValue( 64 );
row->setFixedHeight( 10 + sizeSpinBox->sizeHint().height() );
preview = new Preview( this );
}
void PreviewWidget::previewUrl( const QUrl &u )
{
preview->showPreview( u, sizeSpinBox->value() );
}
// ****************************************************************************************************
CustomFileDialog::CustomFileDialog()
: QFileDialog( 0, 0, TRUE )
{
setDir( "/" );
dirView = new DirectoryView( this, 0, TRUE );
dirView->addColumn( "" );
dirView->header()->hide();
::Directory *root = new ::Directory( dirView, "/" );
root->setOpen( TRUE );
dirView->setFixedWidth( 150 );
addLeftWidget( dirView );
QPushButton *p = new QPushButton( this );
p->setPixmap( QPixmap( bookmarks ) );
QToolTip::add( p, tr( "Bookmarks" ) );
bookmarkMenu = new QPopupMenu( this );
connect( bookmarkMenu, SIGNAL( activated( int ) ),
this, SLOT( bookmarkChosen( int ) ) );
addId = bookmarkMenu->insertItem( tr( "Add bookmark" ) );
bookmarkMenu->insertSeparator();
QFile f( ".bookmarks" );
if ( f.open( IO_ReadOnly ) ) {
QDataStream ds( &f );
ds >> bookmarkList;
f.close();
QStringList::Iterator it = bookmarkList.begin();
for ( ; it != bookmarkList.end(); ++it ) {
bookmarkMenu->insertItem( *it );
}
}
p->setPopup( bookmarkMenu );
addToolButton( p, TRUE );
connect( dirView, SIGNAL( folderSelected( const QString & ) ),
this, SLOT( setDir2( const QString & ) ) );
connect( this, SIGNAL( dirEntered( const QString & ) ),
dirView, SLOT( setDir( const QString & ) ) );
QToolButton *b = new QToolButton( this );
QToolTip::add( b, tr( "Go Home!" ) );
b->setPixmap( QPixmap( home ) );
connect( b, SIGNAL( clicked() ),
this, SLOT( goHome() ) );
addToolButton( b );
resize( width() + width() / 3, height() );
}
CustomFileDialog::~CustomFileDialog()
{
if ( !bookmarkList.isEmpty() ) {
QFile f( ".bookmarks" );
if ( f.open( IO_WriteOnly ) ) {
QDataStream ds( &f );
ds << bookmarkList;
f.close();
}
}
}
void CustomFileDialog::setDir2( const QString &s )
{
blockSignals( TRUE );
setDir( s );
blockSignals( FALSE );
}
void CustomFileDialog::showEvent( QShowEvent *e )
{
QFileDialog::showEvent( e );
dirView->setDir( dirPath() );
}
void CustomFileDialog::bookmarkChosen( int i )
{
if ( i == addId ) {
bookmarkList << dirPath();
bookmarkMenu->insertItem( dirPath() );
} else {
setDir( bookmarkMenu->text( i ) );
}
}
void CustomFileDialog::goHome()
{
if ( getenv( "HOME" ) )
setDir( getenv( "HOME" ) );
else
setDir( "/" );
}
// ****************************************************************************************************
int main( int argc, char ** argv )
{
QFileDialog::Mode mode = QFileDialog::ExistingFile;
QString start;
QString filter;
QString caption;
bool preview = FALSE;
bool custom = FALSE;
QApplication a( argc, argv );
for (int i=1; i<argc; i++) {
QString arg = argv[i];
if ( arg == "-any" )
mode = QFileDialog::AnyFile;
else if ( arg == "-dir" )
mode = QFileDialog::Directory;
else if ( arg == "-default" )
start = argv[++i];
else if ( arg == "-filter" )
filter = argv[++i];
else if ( arg == "-preview" )
preview = TRUE;
else if ( arg == "-custom" )
custom = TRUE;
else if ( arg[0] == '-' ) {
qDebug("Usage: qdir [-any | -dir | -custom] [-preview] [-default f] {-filter f} [caption ...]\n"
" -any Get any filename, need not exist.\n"
" -dir Return a directory rather than a file.\n"
" -custom Opens a customized QFileDialog with \n"
" dir browser, bookmark menu, etc.\n"
" -preview Show a preview widget.\n"
" -default f Start from directory/file f.\n"
" -filter f eg. '*.gif' '*.bmp'\n"
" caption ... Caption for dialog.\n"
);
return 1;
} else {
if ( !caption.isNull() )
caption += ' ';
caption += arg;
}
}
if ( !start )
start = QDir::currentDirPath();
if ( !caption )
caption = mode == QFileDialog::Directory
? "Choose directory..." : "Choose file...";
if ( !custom ) {
QFileDialog fd( QString::null, filter, 0, 0, TRUE );
fd.setMode( mode );
if ( preview ) {
fd.setContentsPreviewEnabled( TRUE );
PreviewWidget *pw = new PreviewWidget( &fd );
fd.setContentsPreview( pw, pw );
fd.setViewMode( QFileDialog::List );
fd.setPreviewMode( QFileDialog::Contents );
}
fd.setCaption( caption );
fd.setSelection( start );
if ( fd.exec() == QDialog::Accepted ) {
QString result = fd.selectedFile();
printf("%s\n", (const char*)result);
return 0;
} else {
return 1;
}
} else {
CustomFileDialog fd;
fd.exec();
return 1;
}
}
See also Examples.
