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Fix second scrolling run ussue (#8347)

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Anton Sergunov 2025-05-01 08:03:35 +06:00 committed by GitHub
parent b597565165
commit 807925fd38
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1 changed files with 27 additions and 27 deletions
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54
esphome/components/max7219digit/max7219digit.cpp
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@ -4,6 +4,8 @@
#include "esphome/core/hal.h"
#include "max7219font.h"
#include <algorithm>
namespace esphome {
namespace max7219digit {
@ -61,45 +63,42 @@ void MAX7219Component::dump_config() {
}
void MAX7219Component::loop() {
uint32_t now = millis();
const uint32_t now = millis();
const uint32_t millis_since_last_scroll = now - this->last_scroll_;
const size_t first_line_size = this->max_displaybuffer_[0].size();
// check if the buffer has shrunk past the current position since last update
if ((this->max_displaybuffer_[0].size() >= this->old_buffer_size_ + 3) ||
(this->max_displaybuffer_[0].size() <= this->old_buffer_size_ - 3)) {
if ((first_line_size >= this->old_buffer_size_ + 3) || (first_line_size <= this->old_buffer_size_ - 3)) {
ESP_LOGV(TAG, "Buffer size changed %d to %d", this->old_buffer_size_, first_line_size);
this->stepsleft_ = 0;
this->display();
this->old_buffer_size_ = this->max_displaybuffer_[0].size();
this->old_buffer_size_ = first_line_size;
}
// Reset the counter back to 0 when full string has been displayed.
if (this->stepsleft_ > this->max_displaybuffer_[0].size())
this->stepsleft_ = 0;
// Return if there is no need to scroll or scroll is off
if (!this->scroll_ || (this->max_displaybuffer_[0].size() <= (size_t) get_width_internal())) {
if (!this->scroll_ || (first_line_size <= (size_t) get_width_internal())) {
ESP_LOGVV(TAG, "Return if there is no need to scroll or scroll is off.");
this->display();
return;
}
if ((this->stepsleft_ == 0) && (now - this->last_scroll_ < this->scroll_delay_)) {
if ((this->stepsleft_ == 0) && (millis_since_last_scroll < this->scroll_delay_)) {
ESP_LOGVV(TAG, "At first step. Waiting for scroll delay");
this->display();
return;
}
// Dwell time at end of string in case of stop at end
if (this->scroll_mode_ == ScrollMode::STOP) {
if (this->stepsleft_ >= this->max_displaybuffer_[0].size() - (size_t) get_width_internal() + 1) {
if (now - this->last_scroll_ >= this->scroll_dwell_) {
this->stepsleft_ = 0;
this->last_scroll_ = now;
this->display();
}
if (this->stepsleft_ + get_width_internal() == first_line_size + 1) {
if (millis_since_last_scroll < this->scroll_dwell_) {
ESP_LOGVV(TAG, "Dwell time at end of string in case of stop at end. Step %d, since last scroll %d, dwell %d.",
this->stepsleft_, millis_since_last_scroll, this->scroll_dwell_);
return;
}
ESP_LOGV(TAG, "Dwell time passed. Continue scrolling.");
}
}
// Actual call to scroll left action
if (now - this->last_scroll_ >= this->scroll_speed_) {
if (millis_since_last_scroll >= this->scroll_speed_) {
ESP_LOGVV(TAG, "Call to scroll left action");
this->last_scroll_ = now;
this->scroll_left();
this->display();
@ -227,19 +226,20 @@ void MAX7219Component::scroll(bool on_off) { this->set_scroll(on_off); }
void MAX7219Component::scroll_left() {
for (int chip_line = 0; chip_line < this->num_chip_lines_; chip_line++) {
auto scroll = [&](std::vector<uint8_t> &line, uint16_t steps) {
std::rotate(line.begin(), std::next(line.begin(), steps), line.end());
};
if (this->update_) {
this->max_displaybuffer_[chip_line].push_back(this->bckgrnd_);
for (uint16_t i = 0; i < this->stepsleft_; i++) {
this->max_displaybuffer_[chip_line].push_back(this->max_displaybuffer_[chip_line].front());
this->max_displaybuffer_[chip_line].erase(this->max_displaybuffer_[chip_line].begin());
}
scroll(this->max_displaybuffer_[chip_line],
(this->stepsleft_ + 1) % (this->max_displaybuffer_[chip_line].size()));
} else {
this->max_displaybuffer_[chip_line].push_back(this->max_displaybuffer_[chip_line].front());
this->max_displaybuffer_[chip_line].erase(this->max_displaybuffer_[chip_line].begin());
scroll(this->max_displaybuffer_[chip_line], 1);
}
}
this->update_ = false;
this->stepsleft_++;
this->stepsleft_ %= this->max_displaybuffer_[0].size();
}
void MAX7219Component::send_char(uint8_t chip, uint8_t data) {