91 lines
2.4 KiB
C++
91 lines
2.4 KiB
C++
/* This file is part of Clementine.
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Copyright 2012, David Sansome <me@davidsansome.com>
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Clementine is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Clementine is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Clementine. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef MOODBARITEMDELEGATE_H
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#define MOODBARITEMDELEGATE_H
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#include "moodbarrenderer.h"
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#include <QCache>
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#include <QItemDelegate>
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#include <QFutureWatcher>
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#include <QUrl>
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class Application;
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class MoodbarPipeline;
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class PlaylistView;
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class QModelIndex;
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class MoodbarItemDelegate : public QItemDelegate {
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Q_OBJECT
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public:
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MoodbarItemDelegate(Application* app, PlaylistView* view,
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QObject* parent = nullptr);
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void paint(QPainter* painter, const QStyleOptionViewItem& option,
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const QModelIndex& index) const;
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private slots:
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void ReloadSettings();
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void DataLoaded(const QUrl& url, MoodbarPipeline* pipeline);
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void ColorsLoaded(const QUrl& url, QFutureWatcher<ColorVector>* watcher);
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void ImageLoaded(const QUrl& url, QFutureWatcher<QImage>* watcher);
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private:
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struct Data {
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Data();
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enum State {
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State_None,
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State_CannotLoad,
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State_LoadingData,
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State_LoadingColors,
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State_LoadingImage,
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State_Loaded
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};
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QSet<QPersistentModelIndex> indexes_;
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State state_;
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ColorVector colors_;
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QSize desired_size_;
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QPixmap pixmap_;
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};
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private:
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QPixmap PixmapForIndex(const QModelIndex& index, const QSize& size);
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void StartLoadingData(const QUrl& url, Data* data);
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void StartLoadingColors(const QUrl& url, const QByteArray& bytes, Data* data);
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void StartLoadingImage(const QUrl& url, Data* data);
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bool RemoveFromCacheIfIndexesInvalid(const QUrl& url, Data* data);
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void ReloadAllColors();
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private:
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Application* app_;
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PlaylistView* view_;
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QCache<QUrl, Data> data_;
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MoodbarRenderer::MoodbarStyle style_;
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};
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#endif // MOODBARITEMDELEGATE_H
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