more unfinished changes, process tab for dashboard

Plugins/ZShell/Internal/circularbuffer.cpp

@@ -19,6 +19,8 @@ void CircularBuffer::setCapacity(int capacity) {
 	m_capacity = capacity;
 	m_data.resize(capacity);
 	m_data.fill(0.0);
+	m_smoothed.resize(capacity);
+	m_smoothed.fill(0.0);
 	m_head = 0;
 	m_count = 0;
 
@@ -30,6 +32,8 @@ void CircularBuffer::setCapacity(int capacity) {
 		m_count++;
 	}
 
+	recomputeAllSmoothed();
+
 	emit capacityChanged();
 	emit countChanged();
 	emit valuesChanged();
@@ -56,6 +60,19 @@ qreal CircularBuffer::maximum() const {
 	return maxVal;
 }
 
+int CircularBuffer::smoothingRadius() const {
+	return m_smoothingRadius;
+}
+
+void CircularBuffer::setSmoothingRadius(int radius) {
+	radius = std::max(0, radius);
+	if (m_smoothingRadius == radius) return;
+	m_smoothingRadius = radius;
+	recomputeAllSmoothed();
+	emit smoothingRadiusChanged();
+	emit valuesChanged();
+}
+
 void CircularBuffer::push(qreal value) {
 	if (m_capacity <= 0) return;
 
@@ -65,6 +82,9 @@ void CircularBuffer::push(qreal value) {
 		m_count++;
 		emit countChanged();
 	}
+
+	updateSmoothedTail();
+
 	emit valuesChanged();
 }
 
@@ -85,4 +105,44 @@ qreal CircularBuffer::at(int index) const {
 	return m_data[actualIndex];
 }
 
+qreal CircularBuffer::smoothedAt(int index) const {
+	if (index < 0 || index >= m_count) return 0.0;
+
+	const int actualIndex =
+		(m_head - m_count + index + m_capacity) % m_capacity;
+	return m_smoothed[actualIndex];
+}
+
+void CircularBuffer::writeSmoothedAt(int logicalIndex) {
+	const int actualIndex =
+		(m_head - m_count + logicalIndex + m_capacity) % m_capacity;
+
+	if (m_smoothingRadius <= 0) {
+		m_smoothed[actualIndex] = m_data[actualIndex];
+		return;
+	}
+
+	qreal sum = 0.0;
+	int sampleCount = 0;
+	for (int j = -m_smoothingRadius; j <= m_smoothingRadius; ++j) {
+		const int idx = logicalIndex + j;
+		if (idx < 0 || idx >= m_count) continue;
+		const int a = (m_head - m_count + idx + m_capacity) % m_capacity;
+		sum += m_data[a];
+		sampleCount++;
+	}
+	m_smoothed[actualIndex] = sampleCount > 0 ? sum / sampleCount : 0.0;
+}
+
+void CircularBuffer::updateSmoothedTail() {
+	const int start = std::max(0, m_count - 1 - m_smoothingRadius);
+	for (int i = start; i < m_count; ++i)
+		writeSmoothedAt(i);
+}
+
+void CircularBuffer::recomputeAllSmoothed() {
+	for (int i = 0; i < m_count; ++i)
+		writeSmoothedAt(i);
+}
+
 } // namespace ZShell::internal