loadingwidget.cpp

Trolltech公司发布的图形界面操作系统。可在qt-embedded-2.3.10平台上编译为嵌入式图形界面操作系统。

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#include <qtopia/resource.h>
#include <qvbox.h>
#include <qlayout.h>
#include <qstyle.h>
#include <qpainter.h>
#include <qlabel.h>
#include "loadingwidget.h"


/*!
  \class MediaScanningProgress loadingwidget.h
  \brief This class is specific to the mediaplayer apps.

    It is currently private to those apps, and its API,
    and therefore binary compatibilty may change in later
    versions.

    This class is for displaying a progress bar when
    searching for documents.
*/


MediaScanningProgress::MediaScanningProgress( QWidget *parent, const char *name )
    : QVBox( parent, name )
{
    setSpacing( 10 );
    setMargin( 10 );

    QWidget *space1 = new QWidget( this );
    setStretchFactor( space1, 1 );

    QLabel *waitPixmap = new QLabel( this );
    waitPixmap->setSizePolicy( QSizePolicy( (QSizePolicy::SizeType)5, (QSizePolicy::SizeType)5, waitPixmap->sizePolicy().hasHeightForWidth() ) );
    waitPixmap->setPixmap( Resource::loadPixmap( "bigwait" ) );
    waitPixmap->setAlignment( int( QLabel::AlignCenter ) );

    QLabel *textLabel = new QLabel( this );
    textLabel->setText( tr( "<b>Finding Documents...</b>" ) );
    textLabel->setAlignment( int( QLabel::AlignCenter ) );

    docMediaScanningProgressProgress = new QProgressBar( this );
    docMediaScanningProgressProgress->setProgress( 0 );
    docMediaScanningProgressProgress->setCenterIndicator( TRUE );

    // Still got flicker, was fixed for a bit, but this doesn't seem to be
    // the right solution without changing Qt (backport newer QProgressBar?)
    // docMediaScanningProgressProgress->setBackgroundMode( NoBackground ); // No flicker
    setProgressStyle();

    QWidget *space2 = new QWidget( this );
    setStretchFactor( space2, 1 );
}

MediaScanningProgress::~MediaScanningProgress()
{
}

void MediaScanningProgress::setProgressStyle()
{
    if (docMediaScanningProgressProgress) {
	docMediaScanningProgressProgress->setFrameShape( QProgressBar::Box );
	docMediaScanningProgressProgress->setFrameShadow( QProgressBar::Plain );
	docMediaScanningProgressProgress->setMargin( 1 );
	docMediaScanningProgressProgress->setLineWidth( 1 );
    }
}

void MediaScanningProgress::setProgress( int percent )
{
    docMediaScanningProgressProgress->setProgress( percent );
}