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| |
| #include "qwinrtimageencodercontrol.h" |
| QT_BEGIN_NAMESPACE |
| |
| class QWinRTImageEncoderControlPrivate |
| { |
| public: |
| QList<QSize> supportedResolutions; |
| QImageEncoderSettings imageEncoderSetting; |
| }; |
| |
| QWinRTImageEncoderControl::QWinRTImageEncoderControl(QObject *parent) |
| : QImageEncoderControl(parent), d_ptr(new QWinRTImageEncoderControlPrivate) |
| { |
| } |
| |
| QStringList QWinRTImageEncoderControl::supportedImageCodecs() const |
| { |
| return QStringList() << QStringLiteral("jpeg"); |
| } |
| |
| QString QWinRTImageEncoderControl::imageCodecDescription(const QString &codecName) const |
| { |
| if (codecName == QStringLiteral("jpeg")) |
| return tr("JPEG image"); |
| |
| return QString(); |
| } |
| |
| QList<QSize> QWinRTImageEncoderControl::supportedResolutions(const QImageEncoderSettings &settings, bool *continuous) const |
| { |
| Q_UNUSED(settings); |
| Q_D(const QWinRTImageEncoderControl); |
| |
| if (continuous) |
| *continuous = false; |
| |
| return d->supportedResolutions; |
| } |
| |
| QImageEncoderSettings QWinRTImageEncoderControl::imageSettings() const |
| { |
| Q_D(const QWinRTImageEncoderControl); |
| return d->imageEncoderSetting; |
| } |
| |
| void QWinRTImageEncoderControl::setImageSettings(const QImageEncoderSettings &settings) |
| { |
| Q_D(QWinRTImageEncoderControl); |
| if (d->imageEncoderSetting == settings) |
| return; |
| |
| d->imageEncoderSetting = settings; |
| applySettings(); |
| } |
| |
| void QWinRTImageEncoderControl::setSupportedResolutionsList(const QList<QSize> resolution) |
| { |
| Q_D(QWinRTImageEncoderControl); |
| d->supportedResolutions = resolution; |
| applySettings(); |
| } |
| |
| void QWinRTImageEncoderControl::applySettings() |
| { |
| Q_D(QWinRTImageEncoderControl); |
| if (d->imageEncoderSetting.codec().isEmpty()) |
| d->imageEncoderSetting.setCodec(QStringLiteral("jpeg")); |
| |
| if (d->supportedResolutions.isEmpty()) |
| return; |
| |
| QSize requestResolution = d->imageEncoderSetting.resolution(); |
| if (!requestResolution.isValid()) { |
| d->imageEncoderSetting.setResolution(d->supportedResolutions.last()); |
| return; |
| } |
| if (d->supportedResolutions.contains(requestResolution)) |
| return; |
| |
| // Find closest resolution from the list |
| const int pixelCount = requestResolution.width() * requestResolution.height(); |
| int minimumGap = std::numeric_limits<int>::max(); |
| for (const QSize &size : qAsConst(d->supportedResolutions)) { |
| int gap = qAbs(pixelCount - size.width() * size.height()); |
| if (gap < minimumGap) { |
| minimumGap = gap; |
| requestResolution = size; |
| if (gap == 0) |
| break; |
| } |
| } |
| d->imageEncoderSetting.setResolution(requestResolution); |
| } |
| |
| QT_END_NAMESPACE |