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74 lines
2.3 KiB
C++
74 lines
2.3 KiB
C++
#include "lcd_menu.h"
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#include "esphome/core/log.h"
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#include <algorithm>
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namespace esphome {
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namespace lcd_menu {
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static const char *const TAG = "lcd_menu";
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void LCDCharacterMenuComponent::setup() {
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if (this->display_->is_failed()) {
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this->mark_failed();
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return;
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}
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display_menu_base::DisplayMenuComponent::setup();
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}
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float LCDCharacterMenuComponent::get_setup_priority() const { return setup_priority::PROCESSOR - 1.0f; }
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void LCDCharacterMenuComponent::dump_config() {
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ESP_LOGCONFIG(TAG, "LCD Menu");
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ESP_LOGCONFIG(TAG, " Columns: %u, Rows: %u", this->columns_, this->rows_);
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ESP_LOGCONFIG(TAG, " Mark characters: %02x, %02x, %02x, %02x", this->mark_selected_, this->mark_editing_,
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this->mark_submenu_, this->mark_back_);
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if (this->is_failed()) {
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ESP_LOGE(TAG, "The connected display failed, the menu is disabled!");
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}
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}
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void LCDCharacterMenuComponent::draw_item(const display_menu_base::MenuItem *item, uint8_t row, bool selected) {
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char data[this->columns_ + 1]; // Bounded to 65 through the config
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memset(data, ' ', this->columns_);
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if (selected) {
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data[0] = (this->editing_ || (this->mode_ == display_menu_base::MENU_MODE_JOYSTICK && item->get_immediate_edit()))
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? this->mark_editing_
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: this->mark_selected_;
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}
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switch (item->get_type()) {
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case display_menu_base::MENU_ITEM_MENU:
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data[this->columns_ - 1] = this->mark_submenu_;
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break;
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case display_menu_base::MENU_ITEM_BACK:
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data[this->columns_ - 1] = this->mark_back_;
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break;
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default:
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break;
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}
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auto text = item->get_text();
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size_t n = std::min(text.size(), (size_t) this->columns_ - 2);
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memcpy(data + 1, item->get_text().c_str(), n);
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if (item->has_value()) {
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std::string value = item->get_value_text();
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// Maximum: start mark, at least two chars of label, space, '[', value, ']',
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// end mark. Config guarantees columns >= 12
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size_t val_width = std::min((size_t) this->columns_ - 7, value.length());
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memcpy(data + this->columns_ - val_width - 4, " [", 2);
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memcpy(data + this->columns_ - val_width - 2, value.c_str(), val_width);
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data[this->columns_ - 2] = ']';
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}
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data[this->columns_] = '\0';
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this->display_->print(0, row, data);
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}
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} // namespace lcd_menu
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} // namespace esphome
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