36 lines
886 B
C
36 lines
886 B
C
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#pragma once
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#include <QWidget>
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#include <QPixmap>
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#include <QAudioBuffer>
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class PreviewWidget : public QWidget
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{
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Q_OBJECT
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public:
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explicit PreviewWidget(QWidget *parent = nullptr);
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const QAudioBuffer &buffer() const { return m_buffer; }
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void setBuffer(const QAudioBuffer &buffer) { m_buffer = buffer; m_graphCache = {}; repaint(); }
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double position() const { return m_position; }
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void setPosition(double position) { m_position = position; repaint(); }
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signals:
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void positionSelected(double sample);
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protected:
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void paintEvent(QPaintEvent *event) override;
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void mousePressEvent(QMouseEvent *event) override;
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void mouseReleaseEvent(QMouseEvent *event) override;
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void mouseMoveEvent(QMouseEvent *event) override;
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private:
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void clicked(int x, int y);
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QAudioBuffer m_buffer;
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double m_position{};
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QPixmap m_graphCache;
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};
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