/*!
Loads a thumbnail representation of \a content. The thumbnail will be scaled to \a size
according to the given aspect ratio mode.
*/
QImage QContentStore::thumbnail(const QContent &content, const QSize &size, Qt::AspectRatioMode mode)
{
QImage thumbnail;
QString thumbPath = thumbnailPath(content.fileName());
QFileInfo thumbInfo(thumbPath);
if (thumbInfo.exists()) {
if (thumbInfo.lastModified() > content.lastUpdated())
thumbnail = readThumbnail(thumbPath, size, mode);
} else {
thumbnail = QContentFactory::thumbnail(content, size, mode);
}
if (thumbnail.isNull()) {
if (QIODevice *device = content.open()) {
QImageReader reader(device);
if (reader.canRead()) {
QSize scaledSize = reader.size();
reader.setQuality(25);
if (scaledSize.width() > 128 || scaledSize.height() > 128) {
scaledSize.scale(QSize(128, 128), Qt::KeepAspectRatio);
reader.setQuality( 49 ); // Otherwise Qt smooth scales
reader.setScaledSize(scaledSize);
reader.read(&thumbnail);
if (!thumbnail.isNull()) {
QImageWriter writer(thumbPath, QByteArray::fromRawData("PNG", 3));
writer.setQuality(25);
writer.write(thumbnail);
if (size.isValid())
thumbnail = thumbnail.scaled(size, mode);
}
} else {
if (size.isValid()) {
scaledSize.scale(size, mode);
reader.setQuality( 49 ); // Otherwise Qt smooth scales
reader.setScaledSize(scaledSize);
}
reader.read(&thumbnail);
}
}
delete device;
}
}
if (thumbnail.isNull() && content.type().startsWith(m_audioPrefix)) {
QDir dir = QFileInfo(content.fileName()).absoluteDir();
foreach (const QString &fileName, m_folderThumbnails) {
if (dir.exists(fileName)) {
thumbnail = readThumbnail(dir.absoluteFilePath(fileName), size, mode);
break;
}
}
}
void ThumbnailDelegate::paint( QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index ) const
{
Q_ASSERT(index.isValid());
const QContentSetModel *model = qobject_cast< const QContentSetModel * >( index.model() );
Q_ASSERT(model);
QStyleOptionViewItem opt = option;
// set text alignment
opt.displayAlignment = Qt::AlignCenter;
// do layout
QContent content = model->content( index );
QPixmap pixmap;
if( content.fileKnown() ) {
pixmap = repository_->thumbnail( ThumbnailRequest( index, content.file(), option.decorationSize, content.lastUpdated() ) );
}
if( pixmap.isNull() ) {
QIcon icon = qvariant_cast<QIcon>(model->data(index, Qt::DecorationRole));
pixmap = icon.pixmap( option.decorationSize );
}
QRect pixmapRect = QRect(0, 0, option.decorationSize.width(),
option.decorationSize.height());
QFontMetrics fontMetrics(opt.font);
QString text = model->data(index, Qt::DisplayRole).toString();
QRect textRect(0, 0, option.decorationSize.width(), fontMetrics.lineSpacing());
QVariant value = model->data(index, Qt::CheckStateRole);
QRect checkRect = check(opt, opt.rect, value);
Qt::CheckState checkState = static_cast<Qt::CheckState>(value.toInt());
doLayout(opt, &checkRect, &pixmapRect, &textRect, false);
// draw the background color
if (option.showDecorationSelected && (option.state & QStyle::State_Selected)) {
QPalette::ColorGroup cg = option.state & QStyle::State_Enabled
? QPalette::Normal : QPalette::Disabled;
painter->fillRect(option.rect, option.palette.brush(cg, QPalette::Highlight));
} else {
value = model->data(index, Qt::BackgroundColorRole);
if (value.isValid() && qvariant_cast<QColor>(value).isValid())
painter->fillRect(option.rect, qvariant_cast<QColor>(value));
}
// draw the item
drawCheck(painter, opt, checkRect, checkState);
drawDecoration(painter, opt, pixmapRect, pixmap);
drawDisplay(painter, opt, textRect, text);
drawFocus(painter, opt, textRect);
}
void CameraMainWindow::loadThumbs( bool resized )
{
int i = 0;
showWaitScreen();
for (; i < nthumb && i < m_photoModel->rowCount(); ++i)
{
QContent content = m_photoModel->content(i);
if (resized || picturefile[i].id() != content.id() || picturefile[i].lastUpdated() != content.lastUpdated()) {
picturefile[i] = content;
thumb[i]->setIcon(QThumbnail(picturefile[i].fileName()).pixmap(QSize(thumbw, thumbh)));
thumb[i]->setEnabled(true);
}
}
for (; i < nthumb; ++i) {
picturefile[i] = QContent();
thumb[i]->setIcon(QIcon());
thumb[i]->setEnabled(false);
}
if ( cur_thumb >= 0 )
selectThumb(cur_thumb);
if ( !camera->videocaptureview->available() ) {
if(settings)
a_timer->setVisible(false);
camera->photo->setEnabled(false);
camera->video->setEnabled(false);
if (m_photoModel->rowCount() == 0) {
thumb[0]->setEnabled(false);
} else {
thumb[0]->setFocus();
thumb[0]->setEnabled(true);
}
}
if(settings)
updateActions();
hideWaitScreen();
}