pixmapchooser.cpp

来自「qt-x11-free-3.0.3.tar.gz minigui图形界面工具」· C++ 代码 · 共 1,092 行 · 第 1/2 页

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"                                    >@N$O$P$Q$R$                                ",
"                                                                                "};
#else
static const char * const logo_xpm[] = {
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"# + > % & !+~+{+]+^+/+(+_+) Q.:+<+[+$ R # ",
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#endif

static ImageIconProvider *imageIconProvider = 0;
static PixmapChooser *pixmapChooser = 0;
#endif

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 );
}

void PixmapView::previewUrl( const QUrl &u )
{
    if ( u.isLocalFile() ) {
	QString path = u.path();
	QPixmap pix( path );
	if ( !pix.isNull() )
	    setPixmap( pix );
    } else {
	qWarning( "Previewing remot files not supported" );
    }
}

QStringList qChoosePixmaps( QWidget *parent )
{
    if ( !imageIconProvider && !QFileDialog::iconProvider() )
	QFileDialog::setIconProvider( ( imageIconProvider = new ImageIconProvider ) );

    QString filter;
    QString all = qApp->translate( "qChoosePixmap", "All Pixmaps (" );
    for ( uint i = 0; i < QImageIO::outputFormats().count(); i++ ) {
	filter += qApp->translate( "qChoosePixmap", "%1-Pixmaps (%2)\n" ).
		  arg( QImageIO::outputFormats().at( i ) ).
		  arg( "*." + QString( QImageIO::outputFormats().at( i ) ).lower() );
	all += "*." + QString( QImageIO::outputFormats().at( i ) ).lower() + ";";
    }
    filter.prepend( all + qApp->translate( "qChoosePixmap", ")\n" ) );
    filter += qApp->translate( "qChoosePixmap", "All Files (*)" );

    QFileDialog fd( QString::null, filter, parent, 0, TRUE );
    fd.setMode( QFileDialog::ExistingFiles );
    fd.setContentsPreviewEnabled( TRUE );
    PixmapView *pw = new PixmapView( &fd );
    fd.setContentsPreview( pw, pw );
    fd.setViewMode( QFileDialog::List );
    fd.setPreviewMode( QFileDialog::Contents );
    fd.setCaption( qApp->translate( "qChoosePixmap", "Choose Images..." ) );
    if ( fd.exec() == QDialog::Accepted )
	return fd.selectedFiles();
    return QStringList();
}

QPixmap qChoosePixmap( QWidget *parent, FormWindow *fw, const QPixmap &old, QString *fn )
{
#if defined(DESIGNER)
    if ( !fw || fw->savePixmapInline() ) {
	if ( !imageIconProvider && !QFileDialog::iconProvider() )
	    QFileDialog::setIconProvider( ( imageIconProvider = new ImageIconProvider ) );

	QString filter;
	QString all = qApp->translate( "qChoosePixmap", "All Pixmaps (" );
	for ( uint i = 0; i < QImageIO::outputFormats().count(); i++ ) {
	    filter += qApp->translate( "qChoosePixmap", "%1-Pixmaps (%2)\n" ).
		     arg( QImageIO::outputFormats().at( i ) ).
		     arg( "*." + QString( QImageIO::outputFormats().at( i ) ).lower() );
	    all += "*." + QString( QImageIO::outputFormats().at( i ) ).lower() + ";";
	}
	filter.prepend( all + qApp->translate( "qChoosePixmap", ")\n" ) );
	filter += qApp->translate( "qChoosePixmap", "All Files (*)" );

	QFileDialog fd( QString::null, filter, parent, 0, TRUE );
	fd.setContentsPreviewEnabled( TRUE );
	PixmapView *pw = new PixmapView( &fd );
	fd.setContentsPreview( pw, pw );
	fd.setViewMode( QFileDialog::List );
	fd.setPreviewMode( QFileDialog::Contents );
	fd.setCaption( qApp->translate( "qChoosePixmap", "Choose a Pixmap..." ) );
	if ( fd.exec() == QDialog::Accepted ) {
	    QPixmap pix( fd.selectedFile() );
	    if ( fn )
		*fn = fd.selectedFile();
	    MetaDataBase::setPixmapArgument( fw, pix.serialNumber(), fd.selectedFile() );
	    return pix;
	}
    } else if ( fw && fw->savePixmapInProject() ) {
	PixmapCollectionEditor dia( parent, 0, TRUE );
	dia.setProject( fw->project() );
	dia.setChooserMode( TRUE );
	dia.setCurrentItem( MetaDataBase::pixmapKey( fw, old.serialNumber() ) );
	if ( dia.exec() == QDialog::Accepted ) {
	    QPixmap pix( fw->project()->pixmapCollection()->pixmap( dia.viewPixmaps->currentItem()->text() ) );
	    MetaDataBase::setPixmapKey( fw, pix.serialNumber(), dia.viewPixmaps->currentItem()->text() );
	    return pix;
	}
    } else {
	PixmapFunction dia( parent, 0, TRUE );
	QObject::connect( dia.helpButton, SIGNAL( clicked() ), MainWindow::self, SLOT( showDialogHelp() ) );
	dia.labelFunction->setText( fw->pixmapLoaderFunction() + "(" );
	dia.editArguments->setText( MetaDataBase::pixmapArgument( fw, old.serialNumber() ) );
	dia.editArguments->setFocus();
	if ( dia.exec() == QDialog::Accepted ) {
	    QPixmap pix( PixmapChooser::loadPixmap( "image.xpm" ) );
	    MetaDataBase::setPixmapArgument( fw, pix.serialNumber(), dia.editArguments->text() );
	    return pix;
	}
    }
#else
    Q_UNUSED( parent );
    Q_UNUSED( fw );
    Q_UNUSED( old );
#endif
    return QPixmap();
}

ImageIconProvider::ImageIconProvider( QWidget *parent, const char *name )
    : QFileIconProvider( parent, name ), imagepm( PixmapChooser::loadPixmap( "image.xpm", PixmapChooser::Mini ) )
{
    fmts = QImage::inputFormats();
}

ImageIconProvider::~ImageIconProvider()
{
}

const QPixmap * ImageIconProvider::pixmap( const QFileInfo &fi )
{
    QString ext = fi.extension().upper();
    if ( fmts.contains( ext ) ) {
	return &imagepm;
    } else {
	return QFileIconProvider::pixmap( fi );
    }
}

PixmapChooser::PixmapChooser()
{
    // #### hardcoded at the moment
    miniPixDir = "../pics/mini/";
    noSizePixDir = "../pics/";
    smallPixDir = "../pics/small/";
    largePixDir = "../pics/large/";
}

QString PixmapChooser::pixmapPath( Size size ) const
{
    if ( size == Small )
	return smallPixDir;
    if ( size == Mini )
	return miniPixDir;
    if ( size == NoSize )
	return noSizePixDir;
    return largePixDir;
}

QPixmap PixmapChooser::loadPixmap( const QString &name, Size size )
{
#if defined(DESIGNER)
    if ( !pixmapChooser )
	pixmapChooser = new PixmapChooser;

    if ( name == "logo" )
	return QPixmap( logo_xpm );

    if ( name[ 0 ] == '/' || name[ 0 ] == '\\' || name[ 1 ] == ':' )
	return QPixmap( name );

    QString lookup;
    switch ( size ) {
    case Small:
	lookup = "small/";
	break;
    case Disabled:
	lookup = "small/disabled/";
	break;
    case Large:
	lookup = "large/";
	break;
    case Mini:
	lookup = "mini/";
	break;
    default:
	break;
    }

    QString lookup_png = lookup + QFileInfo( name ).baseName() + ".png";
    lookup += name;

    Embed *e = &embed_vec[ 0 ];
    while ( e->name ) {
	if ( QString( e->name ) == lookup ) {
	    QImage img;
	    img.loadFromData( (const uchar*)e->data, e->size );
	    QPixmap pix;
	    pix.convertFromImage( img );
	    return pix;
	} else if ( QString( e->name ) == lookup_png ) {
	    QImage img;
	    img.loadFromData( (const uchar*)e->data, e->size );
	    QPixmap pix;
	    pix.convertFromImage( img );
	    return pix;
	}
	e++;
    }

    // fallback
    return QPixmap( pixmapChooser->pixmapPath( size ) + name );
#else
    Q_UNUSED( name );
    Q_UNUSED( size );
    return QPixmap();
#endif
}