32 lines
817 B
C++
32 lines
817 B
C++
#pragma once
|
|
|
|
#include <vector>
|
|
|
|
#include <QWidget>
|
|
#include <QAudioBuffer>
|
|
|
|
class ScratchWidget : public QWidget
|
|
{
|
|
Q_OBJECT
|
|
|
|
public:
|
|
explicit ScratchWidget(QWidget *parent = nullptr);
|
|
|
|
const QAudioBuffer &buffer() const { return m_buffer; }
|
|
void setBuffer(const QAudioBuffer &buffer) { m_buffer = buffer; m_graphCache.clear(); repaint(); }
|
|
|
|
double position() const { return m_position; }
|
|
void setPosition(double position) { m_position = position; repaint(); }
|
|
|
|
protected:
|
|
void paintEvent(QPaintEvent *event) override;
|
|
void mousePressEvent(QMouseEvent *event) override;
|
|
void mouseReleaseEvent(QMouseEvent *event) override;
|
|
void mouseMoveEvent(QMouseEvent *event) override;
|
|
|
|
private:
|
|
QAudioBuffer m_buffer;
|
|
double m_position{};
|
|
std::vector<QPixmap> m_graphCache;
|
|
};
|