feat: replace canvas -> c++ component

Also add c++ ring buffer

1 files changed, 44 insertions, 0 deletions

diff --git a/plugin/src/Caelestia/Internal/circularbuffer.hpp b/plugin/src/Caelestia/Internal/circularbuffer.hpp
new file mode 100644
index 0000000..ab2dba5
--- /dev/null
+++ b/plugin/src/Caelestia/Internal/circularbuffer.hpp
@@ -0,0 +1,44 @@
+#pragma once
+
+#include <qobject.h>
+#include <qqmlintegration.h>
+#include <qvector.h>
+
+namespace caelestia::internal {
+
+class CircularBuffer : public QObject {
+    Q_OBJECT
+    QML_ELEMENT
+
+    Q_PROPERTY(int capacity READ capacity WRITE setCapacity NOTIFY capacityChanged)
+    Q_PROPERTY(int count READ count NOTIFY countChanged)
+    Q_PROPERTY(QList<qreal> values READ values NOTIFY valuesChanged)
+    Q_PROPERTY(qreal maximum READ maximum NOTIFY valuesChanged)
+
+public:
+    explicit CircularBuffer(QObject* parent = nullptr);
+
+    [[nodiscard]] int capacity() const;
+    void setCapacity(int capacity);
+
+    [[nodiscard]] int count() const;
+    [[nodiscard]] QList<qreal> values() const;
+    [[nodiscard]] qreal maximum() const;
+
+    Q_INVOKABLE void push(qreal value);
+    Q_INVOKABLE void clear();
+    Q_INVOKABLE [[nodiscard]] qreal at(int index) const;
+
+signals:
+    void capacityChanged();
+    void countChanged();
+    void valuesChanged();
+
+private:
+    QVector<qreal> m_data;
+    int m_head = 0;
+    int m_count = 0;
+    int m_capacity = 0;
+};
+
+} // namespace caelestia::internal