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Fixed the issue that graph draws out of the boundary. (#6651)

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chiahsing 2024-04-29 03:49:27 +08:00 committed by GitHub
parent 5142d294f5
commit 8b6a358452
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GPG key ID: B5690EEEBB952194
1 changed files with 9 additions and 5 deletions
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14
esphome/components/graph/graph.cpp
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@ -177,22 +177,26 @@ void Graph::draw(Display *buff, uint16_t x_offset, uint16_t y_offset, Color colo
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;
auto draw_pixel_at = [&buff, c, y_offset, this](int16_t x, int16_t y) {
if (y >= y_offset && y < y_offset + this->height_)
buff->draw_pixel_at(x, y, c);
};
if (!continuous || !has_prev || !prev_b || (abs(y - prev_y) <= thick)) {
for (int16_t t = 0; t < thick; t++) {
buff->draw_pixel_at(x, y + t, c);
draw_pixel_at(x, y + t);
}
} else {
int16_t mid_y = (y + prev_y + thick) / 2;
if (y > prev_y) {
for (int16_t t = prev_y + thick; t <= mid_y; t++)
buff->draw_pixel_at(x + 1, t, c);
draw_pixel_at(x + 1, t);
for (int16_t t = mid_y + 1; t < y + thick; t++)
buff->draw_pixel_at(x, t, c);
draw_pixel_at(x, t);
} else {
for (int16_t t = prev_y - 1; t >= mid_y; t--)
buff->draw_pixel_at(x + 1, t, c);
draw_pixel_at(x + 1, t);
for (int16_t t = mid_y - 1; t >= y; t--)
buff->draw_pixel_at(x, t, c);
draw_pixel_at(x, t);
}
}
prev_y = y;