Files
sunnypilot/tools/cabana/chart/sparkline.h
T
Dean Lee 12f766f8c3 cabana: optimize sparkline rendering by reducing points in horizontal segments (#35689)
Optimize sparkline rendering by reducing redundant points in flat segments
2025-07-13 09:34:52 -07:00

27 lines
610 B
C++

#pragma once
#include <QPixmap>
#include <QPointF>
#include <vector>
#include "tools/cabana/dbc/dbc.h"
#include "tools/cabana/streams/abstractstream.h"
class Sparkline {
public:
void update(const cabana::Signal *sig, CanEventIter first, CanEventIter last, int range, QSize size);
inline double freq() const { return freq_; }
bool isEmpty() const { return pixmap.isNull(); }
QPixmap pixmap;
double min_val = 0;
double max_val = 0;
private:
void render(const QColor &color, int range, QSize size);
std::vector<QPointF> points_;
std::vector<QPointF> render_points_;
double freq_ = 0;
};