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xmidix_piano.h
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xmidix_piano.h
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#ifndef XMIDIX__XMIDIX_PIANO_H_
#define XMIDIX__XMIDIX_PIANO_H_
#include <QWidget>
#include <QFrame>
#include <QDialog>
#include <alsa/asoundlib.h>
class xmidix_piano : public QWidget {
public:
explicit xmidix_piano(QWidget *parent = nullptr, std::shared_ptr<QImage> grad = nullptr);
void clear() {
for (int i = 0; i < 128; i++)
key_state[i] = false;
repaint();
}
void set_key(int key, uint8_t velocity) {
key_state[key] = velocity;
repaint();
}
protected:
void paintEvent(QPaintEvent *event) override;
private:
uint8_t key_state[128] = {0};
std::shared_ptr<QImage> gradient;
};
class xmidix_piano_array : public QDialog {
Q_OBJECT
public:
explicit xmidix_piano_array(QWidget *parent = nullptr);
void clear() {
for (const auto &p : pianos)
p->clear();
}
public slots:
void midi_event(const snd_seq_event_t &event);
protected:
void showEvent(QShowEvent *event) override;
void hideEvent(QHideEvent *event) override;
private:
std::vector<std::shared_ptr<xmidix_piano>> pianos;
QPoint position;
};
#endif //XMIDIX__XMIDIX_PIANO_H_