885b4f6ad6
- Waveform visualization with theme accent color - Playback controls (play/pause, stop, position slider) - Time display with milliseconds (MM:SS.mmm) - Position tracking line on waveform - Volume control 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
91 lines
2.1 KiB
C++
91 lines
2.1 KiB
C++
#ifndef AUDIOPREVIEWWIDGET_H
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#define AUDIOPREVIEWWIDGET_H
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#include <QWidget>
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#include <QLabel>
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#include <QPushButton>
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#include <QSlider>
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#include <QVBoxLayout>
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#include <QHBoxLayout>
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#include <QMediaPlayer>
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#include <QAudioOutput>
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#include <QBuffer>
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#include <QTreeWidget>
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#include <QSplitter>
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#include <QTimer>
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#include <QColor>
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#include "settings.h"
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class AudioPreviewWidget : public QWidget
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{
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Q_OBJECT
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public:
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explicit AudioPreviewWidget(QWidget *parent = nullptr);
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~AudioPreviewWidget();
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bool loadFromData(const QByteArray &data, const QString &filename);
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void setMetadata(const QVariantMap &metadata);
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private slots:
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void onPlayPause();
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void onStop();
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void onPositionChanged(qint64 position);
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void onDurationChanged(qint64 duration);
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void onSliderMoved(int position);
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void onMediaStatusChanged(QMediaPlayer::MediaStatus status);
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void onUpdatePosition();
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void applyTheme(const Theme &theme);
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private:
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void updateTimeLabel();
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void parseWavHeader(const QByteArray &data);
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void drawWaveform();
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void updateWaveformPosition();
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protected:
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void showEvent(QShowEvent *event) override;
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void resizeEvent(QResizeEvent *event) override;
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private:
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QMediaPlayer *mPlayer;
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QAudioOutput *mAudioOutput;
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QBuffer *mAudioBuffer;
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QByteArray mAudioData;
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QTimer *mPositionTimer;
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// UI elements
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QLabel *mFilenameLabel;
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QLabel *mWaveformLabel;
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QLabel *mTimeLabel;
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QPushButton *mPlayButton;
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QPushButton *mStopButton;
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QSlider *mPositionSlider;
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QSlider *mVolumeSlider;
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QTreeWidget *mMetadataTree;
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qint64 mDuration;
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QString mFilename;
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QPixmap mWaveformPixmap; // Store base waveform for position overlay
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double mCalculatedDuration; // Duration in seconds from WAV header
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// WAV info
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int mSampleRate;
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int mChannels;
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int mBitsPerSample;
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int mDataSize;
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int mAudioFormat; // 1=PCM, 2=ADPCM, etc.
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bool mBigEndian;
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// Theme colors
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QColor mAccentColor;
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QColor mBgColor;
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QColor mPanelColor;
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QColor mTextColor;
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QColor mTextColorMuted;
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QColor mBorderColor;
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};
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#endif // AUDIOPREVIEWWIDGET_H
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