diff options
Diffstat (limited to 'examples/qtconcurrent/imagescaling/imagescaling.h')
| -rw-r--r-- | examples/qtconcurrent/imagescaling/imagescaling.h | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/examples/qtconcurrent/imagescaling/imagescaling.h b/examples/qtconcurrent/imagescaling/imagescaling.h index f3f607e302..bc25161a85 100644 --- a/examples/qtconcurrent/imagescaling/imagescaling.h +++ b/examples/qtconcurrent/imagescaling/imagescaling.h @@ -1,4 +1,4 @@ -// Copyright (C) 2020 The Qt Company Ltd. +// Copyright (C) 2023 The Qt Company Ltd. // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause #ifndef IMAGESCALING_H #define IMAGESCALING_H @@ -6,6 +6,7 @@ #include <QtWidgets> #include <QtConcurrent> #include <QNetworkAccessManager> +#include <optional> class DownloadDialog; class Images : public QWidget @@ -18,7 +19,6 @@ public: void initLayout(qsizetype count); QFuture<QByteArray> download(const QList<QUrl> &urls); - QList<QImage> scaled() const; void updateStatus(const QString &msg); void showImages(const QList<QImage> &images); void abortDownload(); @@ -27,7 +27,15 @@ public slots: void process(); void cancel(); +private slots: + void scaleFinished(); + private: + //! [1] + using OptionalImages = std::optional<QList<QImage>>; + //! [1] + static OptionalImages scaled(const QList<QByteArray> &data); + QPushButton *addUrlsButton; QPushButton *cancelButton; QVBoxLayout *mainLayout; @@ -39,6 +47,7 @@ private: QNetworkAccessManager qnam; QList<QSharedPointer<QNetworkReply>> replies; QFuture<QByteArray> downloadFuture; + QFutureWatcher<OptionalImages> scalingWatcher; }; #endif // IMAGESCALING_H |