| 1 | /* |
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| 2 | This file is part of KNewStuff2. |
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| 3 | SPDX-FileCopyrightText: 2006, 2007 Josef Spillner <spillner@kde.org> |
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| 4 | |
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| 5 | SPDX-License-Identifier: LGPL-2.1-or-later |
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| 6 | */ |
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| 7 | |
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| 8 | #ifndef KNEWSTUFF3_IMAGELOADER_P_H |
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| 9 | #define KNEWSTUFF3_IMAGELOADER_P_H |
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| 10 | |
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| 11 | #include <QByteArray> |
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| 12 | #include <QObject> |
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| 13 | |
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| 14 | #include "entry.h" |
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| 15 | #include "jobs/httpjob.h" |
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| 16 | |
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| 17 | class KJob; |
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| 18 | |
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| 19 | namespace KNSCore |
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| 20 | { |
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| 21 | /** |
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| 22 | * Convenience class for images with remote sources. |
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| 23 | * |
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| 24 | * This class represents a fire-and-forget approach of loading images |
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| 25 | * in applications. The image will load itself. |
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| 26 | * Using this class also requires using QAsyncFrame or similar UI |
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| 27 | * elements which allow for asynchronous image loading. |
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| 28 | * |
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| 29 | * This class is used internally by the DownloadDialog class. |
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| 30 | * |
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| 31 | * @internal |
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| 32 | */ |
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| 33 | class KNEWSTUFFCORE_EXPORT ImageLoader : public QObject |
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| 34 | { |
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| 35 | Q_OBJECT |
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| 36 | public: |
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| 37 | explicit ImageLoader(const Entry &entry, Entry::PreviewType type, QObject *parent); |
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| 38 | void start(); |
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| 39 | /** |
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| 40 | * Get the job doing the image loading in the background (to have progress information available) |
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| 41 | * @return the job |
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| 42 | */ |
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| 43 | KJob *job(); |
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| 44 | |
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| 45 | Q_SIGNALS: |
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| 46 | void signalPreviewLoaded(const KNSCore::Entry &, KNSCore::Entry::PreviewType); |
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| 47 | void signalError(const KNSCore::Entry &, KNSCore::Entry::PreviewType, const QString &); |
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| 48 | |
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| 49 | private Q_SLOTS: |
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| 50 | void slotDownload(KJob *job); |
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| 51 | void slotData(KJob *job, const QByteArray &buf); |
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| 52 | |
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| 53 | private: |
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| 54 | Entry m_entry; |
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| 55 | const Entry::PreviewType m_previewType; |
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| 56 | QByteArray m_buffer; |
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| 57 | HTTPJob *m_job = nullptr; |
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| 58 | }; |
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| 59 | } |
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| 60 | #endif |
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| 61 | |
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