| 39 | } |
| 40 | |
| 41 | int32_t GuiService::guiMain() { |
| 42 | auto service = findServiceById<GuiService>(manifest.id); |
| 43 | |
| 44 | if (!lvgl::lock(5000)) { |
| 45 | LOGGER.error("LVGL guiMain start failed as LVGL couldn't be locked"); |
| 46 | return 0; |
| 47 | } |
| 48 | |
| 49 | // The screen root is created in the main task instead of during onStart because |
| 50 | // it allows onStart() to succeed faster and allows widget creation to happen in the background |
| 51 | |
| 52 | auto* screen_root = lv_screen_active(); |
| 53 | if (screen_root == nullptr) { |
| 54 | LOGGER.error("No display found, exiting GUI task"); |
| 55 | lvgl::unlock(); |
| 56 | return 0; |
| 57 | } |
| 58 | |
| 59 | service->keyboardGroup = lv_group_create(); |
| 60 | lv_obj_set_style_border_width(screen_root, 0, LV_STATE_DEFAULT); |
| 61 | lv_obj_set_style_pad_all(screen_root, 0, LV_STATE_DEFAULT); |
| 62 | |
| 63 | lv_obj_t* vertical_container = lv_obj_create(screen_root); |
| 64 | lv_obj_set_size(vertical_container, LV_PCT(100), LV_PCT(100)); |
| 65 | lv_obj_set_flex_flow(vertical_container, LV_FLEX_FLOW_COLUMN); |
| 66 | lv_obj_set_style_pad_all(vertical_container, 0, LV_STATE_DEFAULT); |
| 67 | lv_obj_set_style_pad_gap(vertical_container, 0, LV_STATE_DEFAULT); |
| 68 | lv_obj_set_style_bg_color(vertical_container, lv_color_black(), LV_STATE_DEFAULT); |
| 69 | lv_obj_set_style_border_width(vertical_container, 0, LV_STATE_DEFAULT); |
| 70 | lv_obj_set_style_radius(vertical_container, 0, LV_STATE_DEFAULT); |
| 71 | |
| 72 | service->statusbarWidget = lvgl::statusbar_create(vertical_container); |
| 73 | |
| 74 | auto* app_container = lv_obj_create(vertical_container); |
| 75 | lv_obj_set_style_pad_all(app_container, 0, LV_STATE_DEFAULT); |
| 76 | lv_obj_set_style_border_width(app_container, 0, LV_STATE_DEFAULT); |
| 77 | lv_obj_set_width(app_container, LV_PCT(100)); |
| 78 | lv_obj_set_flex_grow(app_container, 1); |
| 79 | lv_obj_set_flex_flow(app_container, LV_FLEX_FLOW_COLUMN); |
| 80 | |
| 81 | service->appRootWidget = app_container; |
| 82 | |
| 83 | lvgl::unlock(); |
| 84 | |
| 85 | while (true) { |
| 86 | uint32_t flags = 0; |
| 87 | if (service->threadFlags.wait(GUI_THREAD_FLAG_ALL, false, true, &flags, portMAX_DELAY)) { |
| 88 | // When service not started or starting -> exit |
| 89 | State service_state = getState(manifest.id); |
| 90 | if (service_state != State::Started && service_state != State::Starting) { |
| 91 | break; |
| 92 | } |
| 93 | |
| 94 | // Process and dispatch draw call |
| 95 | if (flags & GUI_THREAD_FLAG_DRAW) { |
| 96 | service->threadFlags.clear(GUI_THREAD_FLAG_DRAW); |
| 97 | service->redraw(); |
| 98 | } |