* Description:

#include <QDir>

#include <QFileInfo>

#include "hscontentservice.h"

#include "hswallpaper.h"

#include "hsdatabase.h"

#include "hswallpaperhelper.h"

#define HSBOUNDARYEFFECT 20 // amount of extra pixels in wallpaper width reserved for boundary effect 

namespace

{

    const char gInterfaceName[] = "com.nokia.services.hsapplication.IHomeScreenClient";

}

/*!

    Constructor.

*/

HsHomeScreenClientServiceProvider::HsHomeScreenClientServiceProvider(QObject *parent)

  : XQServiceProvider(gInterfaceName, parent)

/*!

    Destructor.

*/

/*!

    Adds new widget, with the give \a uri and \a preferences, 

    to the active home screen page.

*/

bool HsHomeScreenClientServiceProvider::addWidget(const QString &uri, const QVariantHash &preferences)

    return HsContentService::instance()->addWidget(uri, preferences);

}

/*!

    Changes \a fileName image to the active home screen page's wallpaper.

*/

bool HsHomeScreenClientServiceProvider::setWallpaper(const QString &fileName)

{

    HsScene *scene = HsScene::instance();

    HsDatabase *db = HsDatabase::instance();

    Q_ASSERT(db);

    HsSceneData sceneData;

    if (!db->scene(sceneData)) {

    QFileInfo fileInfo(fileName);

    QString fileExtension("");

    if (!fileInfo.suffix().isEmpty()) {

        fileExtension = fileInfo.suffix();

    }

    QFile::remove(sceneData.portraitWallpaper);

    QFile::remove(sceneData.landscapeWallpaper); 

    QString wallpaperDir = HsWallpaper::wallpaperDirectory();            

    QDir dir(wallpaperDir);

    if (!dir.exists()) {

        dir.mkpath(wallpaperDir);

    QString portraitPath = HsWallpaper::wallpaperPath(

        Qt::Vertical, QString(), fileExtension);

    QString landscapePath = HsWallpaper::wallpaperPath(

        Qt::Horizontal, QString(), fileExtension);

    QRect portraitRect = QRect(0, 0, (2 * 360) + HSBOUNDARYEFFECT, 640);

    QRect landscapeRect = QRect(0, 0, (2 * 640) + HSBOUNDARYEFFECT, 360);

    QRect sourceRect; // left empty to signal we want to use full size image as source

    QImage portraitImage = HsWallpaperHelper::processImage(fileName,

            portraitRect, sourceRect);

    QImage landscapeImage = HsWallpaperHelper::processImage(fileName,

            landscapeRect, sourceRect);

    if (!portraitImage.isNull() && !landscapeImage.isNull()) {

        portraitImage.save(portraitPath);

        sceneData.portraitWallpaper = portraitPath;

        landscapeImage.save(landscapePath);

        sceneData.landscapeWallpaper = landscapePath;

        if (db->updateScene(sceneData)) {

            scene->wallpaper()->setImagesById(QString(), fileInfo.suffix());

        }

    }

    else {

        // display some error note here

    }