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Add continuous option to the graph (#6093)

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Co-authored-by: Samuel Sieb <samuel@sieb.net>
This commit is contained in:
Samuel Sieb
2024-01-15 23:44:12 -08:00
committed by GitHub
parent 249cd67588
commit 26acbbedbf
3 changed files with 38 additions and 6 deletions
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37
esphome/components/graph/graph.cpp
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@@ -165,17 +165,42 @@ void Graph::draw(Display *buff, uint16_t x_offset, uint16_t y_offset, Color colo
for (auto *trace : traces_) {
Color c = trace->get_line_color();
uint16_t thick = trace->get_line_thickness();
bool continuous = trace->get_continuous();
bool has_prev = false;
bool prev_b = false;
int16_t prev_y = 0;
for (uint32_t i = 0; i < this->width_; i++) {
float v = (trace->get_tracedata()->get_value(i) - ymin) / yrange;
if (!std::isnan(v) && (thick > 0)) {
int16_t x = this->width_ - 1 - i;
uint8_t b = (i % (thick * LineType::PATTERN_LENGTH)) / thick;
if (((uint8_t) trace->get_line_type() & (1 << b)) == (1 << b)) {
int16_t y = (int16_t) roundf((this->height_ - 1) * (1.0 - v)) - thick / 2;
for (uint16_t t = 0; t < thick; t++) {
buff->draw_pixel_at(x_offset + x, y_offset + y + t, c);
int16_t x = this->width_ - 1 - i + x_offset;
uint8_t bit = 1 << ((i % (thick * LineType::PATTERN_LENGTH)) / thick);
bool b = (trace->get_line_type() & bit) == bit;
if (b) {
int16_t y = (int16_t) roundf((this->height_ - 1) * (1.0 - v)) - thick / 2 + y_offset;
if (!continuous || !has_prev || !prev_b || (abs(y - prev_y) <= thick)) {
for (uint16_t t = 0; t < thick; t++) {
buff->draw_pixel_at(x, y + t, c);
}
} else {
int16_t mid_y = (y + prev_y + thick) / 2;
if (y > prev_y) {
for (uint16_t t = prev_y + thick; t <= mid_y; t++)
buff->draw_pixel_at(x + 1, t, c);
for (uint16_t t = mid_y + 1; t < y + thick; t++)
buff->draw_pixel_at(x, t, c);
} else {
for (uint16_t t = prev_y - 1; t >= mid_y; t--)
buff->draw_pixel_at(x + 1, t, c);
for (uint16_t t = mid_y - 1; t >= y; t--)
buff->draw_pixel_at(x, t, c);
}
}
prev_y = y;
}
prev_b = b;
has_prev = true;
} else {
has_prev = false;
}
}
}