1 files changed, 25 insertions, 0 deletions
diff --git a/simple-visualization/qmppianowidget.hpp b/simple-visualization/qmppianowidget.hpp
new file mode 100644
index 0000000..22af6ce
--- /dev/null
+++ b/simple-visualization/qmppianowidget.hpp
@@ -0,0 +1,25 @@
+#ifndef QMPPIANOWIDGET_HPP
+#define QMPPIANOWIDGET_HPP
+
+#include <QWidget>
+#include <bitset>
+
+class qmpPianoWidget : public QWidget
+{
+		Q_OBJECT
+	public:
+		explicit qmpPianoWidget(QWidget *parent = nullptr);
+		void setKeyState(int key,bool state);
+		void reset();
+		QSize minimumSizeHint()const override;
+
+	protected:
+		void paintEvent(QPaintEvent *event)override;
+
+	private:
+		bool keystates[128];
+		QRectF getKeyRect(int key);
+		void paintKey(QRectF keyrect,QColor keycolor);
+};
+
+#endif // QMPPIANOWIDGET_HPP