57 lines
1.9 KiB
C++
57 lines
1.9 KiB
C++
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/*#############################################################################
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## Author: Shaun Reed ##
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## Legal: All Content (c) 2025 Shaun Reed, all rights reserved ##
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## ##
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## Contact: shaunrd0@gmail.com | URL: www.shaunreed.com ##
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##############################################################################
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*/
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#include <lv_init.h>
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#include "display.h"
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// Static TimeKeeper for managing ESP timers across all displays.
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TimeKeeper Display::timers_;
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Display::Display(IPanelDevice &device) :
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panel_(device)
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{
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if (!lv_is_initialized()) {
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ESP_LOGI(TAG, "Initialize LVGL");
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lv_init();
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}
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ESP_LOGI(TAG, "Creating LVGL display");
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lv_display_ = panel_.device_->create_display();
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// associate the i2c panel handle to the display
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lv_display_set_user_data(lv_display_, panel_.esp_panel_);
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panel_.register_display_callbacks(lv_display_);
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}
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void Display::set_text(const char *text,
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const char *name,
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lv_label_long_mode_t long_mode,
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lv_align_t align)
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{
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// Lock the mutex due to the LVGL APIs are not thread-safe.
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ScopedLock lock;
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ESP_LOGI(TAG, "Display LVGL Scroll Text");
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lv_obj_t *scr = lv_display_get_screen_active(lv_display_);
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// Create the label if it's `name` doesn't already exist in the map keys.
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if (!lv_objects_.count(name)) {
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lv_objects_[name] = lv_label_create(scr);
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}
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auto obj = lv_objects_[name];
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// Set text and long mode.
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lv_label_set_long_mode(obj, long_mode);
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lv_label_set_text(obj, text);
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// Set the size of the screen.
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// If you use rotation 90 or 270 use lv_display_get_vertical_resolution.
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lv_obj_set_width(obj, lv_display_get_horizontal_resolution(lv_display_));
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lv_obj_align(obj, align, 0, 0);
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}
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