95 lines
2.2 KiB
C++
95 lines
2.2 KiB
C++
/***
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Olive - Non-Linear Video Editor
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Copyright (C) 2020 Olive Team
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This program 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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This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
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***/
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#ifndef AUDIOWAVEFORMVIEW_H
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#define AUDIOWAVEFORMVIEW_H
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#include <QtConcurrent/QtConcurrent>
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#include <QWidget>
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#include "audio/audiovisualwaveform.h"
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#include "render/audioparams.h"
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#include "render/audioplaybackcache.h"
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#include "widget/timeruler/seekablewidget.h"
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namespace olive {
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class AudioWaveformView : public SeekableWidget
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{
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Q_OBJECT
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public:
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AudioWaveformView(QWidget* parent = nullptr);
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//void SetData(const QString& file, const AudioRenderingParams& params);
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void SetViewer(AudioPlaybackCache *playback);
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protected:
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virtual void paintEvent(QPaintEvent* event) override;
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private:
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struct CachedWaveformInfo {
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QSize size;
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double scale;
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int scroll;
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AudioParams params;
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bool operator==(const CachedWaveformInfo& rhs) const
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{
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return size == rhs.size
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&& qFuzzyCompare(scale, rhs.scale)
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&& scroll == rhs.scroll
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&& params == rhs.params;
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}
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bool operator!=(const CachedWaveformInfo& rhs) const
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{
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return !(*this == rhs);
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}
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};
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struct ActiveCache {
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QPixmap pixmap;
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CachedWaveformInfo info;
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CachedWaveformInfo caching_info;
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QFutureWatcher<QPixmap>* watcher = nullptr;
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};
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QPixmap DrawWaveform(QIODevice *fs, CachedWaveformInfo info, int slice_start, int slice_end) const;
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AudioPlaybackCache *playback_;
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QVector<ActiveCache> cached_waveform_;
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private slots:
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void BackendParamsChanged();
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void ForceUpdate();
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void ForceUpdateOfRange(const TimeRange& range);
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void BackgroundCacheFinished();
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};
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}
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#endif // AUDIOWAVEFORMVIEW_H
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