/* * Copyright 2024 Google LLC * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include "applib/app.h" #include "applib/app_logging.h" #include "applib/fonts/fonts.h" #include "applib/ui/simple_menu_layer.h" #include "applib/ui/ui.h" #include "drivers/temperature.h" #include "kernel/pbl_malloc.h" #include "process_state/app_state/app_state.h" #include "system/logging.h" #include "util/math.h" #include "util/size.h" #include "temperature_demo.h" #include #define USE_FAKE_DATA 0 #define CUR_TEMP_HEIGHT 35 #define CUR_TEMP_TOP 1 #define CUR_TEMP_RECT GRect(0, CUR_TEMP_TOP, DISP_COLS, CUR_TEMP_HEIGHT) #define TEMP_RANGE_HEIGHT 20 #define TEMP_RANGE_TOP CUR_TEMP_HEIGHT #define TEMP_RANGE_RECT GRect(0, TEMP_RANGE_TOP, DISP_COLS, TEMP_RANGE_HEIGHT) #define PLOT_TOP 60 #define PLOT_BOTTOM DISP_ROWS #define PLOT_HEIGHT (PLOT_BOTTOM - PLOT_TOP) #define PLOT_WIDTH DISP_COLS #define PLOT_RECT GRect(0, PLOT_TOP, PLOT_WIDTH, PLOT_HEIGHT) #define READ_HISTORY_ENTRIES (4 * MINUTES_PER_HOUR) static int32_t s_temp_readings[READ_HISTORY_ENTRIES]; // Demo temperature typedef struct { Window *window; TextLayer *cur_temp_layer; TextLayer *temp_range_layer; char cur_temp_text[32]; char temp_range_text[128]; int min_temp; int max_temp; } TemperatureDemoAppData; static TemperatureDemoAppData *s_data; // ------------------------------------------------------------------------------- static void select_click_handler(ClickRecognizerRef recognizer, void *context) { } // ------------------------------------------------------------------------------- static void up_click_handler(ClickRecognizerRef recognizer, void *context) { } // ------------------------------------------------------------------------------- static void down_click_handler(ClickRecognizerRef recognizer, void *context) { } // ------------------------------------------------------------------------------- static void click_config_provider(void *context) { window_single_click_subscribe(BUTTON_ID_SELECT, select_click_handler); window_single_click_subscribe(BUTTON_ID_UP, up_click_handler); window_single_click_subscribe(BUTTON_ID_DOWN, down_click_handler); } // ------------------------------------------------------------------------------- static void cur_temp_update_text(TemperatureDemoAppData *data) { // Show current temp int cur_temp = temperature_read(); snprintf(data->cur_temp_text, sizeof(data->cur_temp_text), "%d", cur_temp); text_layer_set_text(data->cur_temp_layer, data->cur_temp_text); snprintf(data->temp_range_text, sizeof(data->temp_range_text), "%d - %d", data->min_temp, data->max_temp); text_layer_set_text(data->temp_range_layer, data->temp_range_text); layer_mark_dirty(window_get_root_layer(data->window)); } // ------------------------------------------------------------------------------- static void handle_second_tick(struct tm* tick_time, TimeUnits units_changed) { int32_t reading = temperature_read(); memcpy(s_temp_readings, s_temp_readings + 1, (READ_HISTORY_ENTRIES - 1) * sizeof(int32_t)); s_temp_readings[READ_HISTORY_ENTRIES - 1] = reading; cur_temp_update_text(s_data); } // ------------------------------------------------------------------------------- static void layer_update_proc(Layer *layer, GContext* ctx) { TemperatureDemoAppData *data = s_data; const GRect *bounds = &layer->bounds; graphics_context_set_fill_color(ctx, GColorWhite); graphics_fill_rect(ctx, bounds); // Plot temperature readings graphics_context_set_fill_color(ctx, GColorBlack); graphics_context_set_stroke_color(ctx, GColorBlack); #if USE_FAKE_DATA // TEST for (int i = 0; i < (int)READ_HISTORY_ENTRIES; i++) { int delta = (i % 50); if (delta > 25) { delta = 50 - delta; } s_temp_readings[i] = 1600 + delta; } #endif // Draw the last bunch that fit in the window int first_idx = (int)READ_HISTORY_ENTRIES - PLOT_WIDTH; first_idx = MAX(first_idx, 0); // Get the min and max bool first_valid = true; int first_non_zero_idx = -1; for (int i = first_idx; i < (int)READ_HISTORY_ENTRIES; i++) { if (s_temp_readings[i] == 0) { continue; } if (first_non_zero_idx < 0) { first_non_zero_idx = i; } if (first_valid) { data->min_temp = data->max_temp = s_temp_readings[i]; first_valid = false; } else { data->min_temp = MIN(data->min_temp, s_temp_readings[i]); data->max_temp = MAX(data->max_temp, s_temp_readings[i]); } } if (first_non_zero_idx < 0) { return; } PBL_LOG(LOG_LEVEL_DEBUG, "min temp: %d, max temp: %d", data->min_temp, data->max_temp); int temp_range = data->max_temp - data->min_temp; temp_range = MAX(10, temp_range); for (int i = first_non_zero_idx, x_pos = 0; i < (int)READ_HISTORY_ENTRIES; i++, x_pos++) { int reading = s_temp_readings[i]; int line_height = (reading - data->min_temp) * PLOT_HEIGHT / temp_range; int y_pos = PLOT_BOTTOM - line_height; graphics_context_set_stroke_color(ctx, GColorRed); graphics_draw_line(ctx, GPoint(x_pos, PLOT_BOTTOM), GPoint(x_pos, y_pos)); GRect dot = GRect(x_pos, y_pos, 4, 4); graphics_fill_rect(ctx, &dot); graphics_draw_pixel(ctx, GPoint(x_pos, PLOT_BOTTOM - line_height)); } } // ------------------------------------------------------------------------------- static void prv_window_load(Window *window) { TemperatureDemoAppData *data = window_get_user_data(window); Layer *window_layer = window_get_root_layer(window); // GRect bounds = window_layer->bounds; layer_set_update_proc(window_layer, layer_update_proc); // Current temp data->cur_temp_layer = text_layer_create(CUR_TEMP_RECT); text_layer_set_text_alignment(data->cur_temp_layer, GTextAlignmentCenter); text_layer_set_font(data->cur_temp_layer, fonts_get_system_font(FONT_KEY_LECO_20_BOLD_NUMBERS)); text_layer_set_background_color(data->cur_temp_layer, GColorClear); text_layer_set_text_color(data->cur_temp_layer, GColorBlack); layer_add_child(window_layer, text_layer_get_layer(data->cur_temp_layer)); // Current temp range data->temp_range_layer = text_layer_create(TEMP_RANGE_RECT); text_layer_set_text_alignment(data->temp_range_layer, GTextAlignmentCenter); text_layer_set_font(data->temp_range_layer, fonts_get_system_font(FONT_KEY_LECO_20_BOLD_NUMBERS)); text_layer_set_background_color(data->temp_range_layer, GColorClear); text_layer_set_text_color(data->temp_range_layer, GColorBlack); layer_add_child(window_layer, text_layer_get_layer(data->temp_range_layer)); // Update UI cur_temp_update_text(data); // Subscribe to second tick for updates tick_timer_service_subscribe(SECOND_UNIT, handle_second_tick); } // ------------------------------------------------------------------------------- static void prv_window_unload(Window *window) { TemperatureDemoAppData *data = window_get_user_data(window); text_layer_destroy(data->cur_temp_layer); } // ------------------------------------------------------------------------------- static void deinit(void) { TemperatureDemoAppData *data = app_state_get_user_data(); window_destroy(data->window); app_free(data); } // ------------------------------------------------------------------------------- static void init(void) { TemperatureDemoAppData *data = app_zalloc_check(sizeof(TemperatureDemoAppData)); s_data = data; app_state_set_user_data(data); // Init window data->window = window_create(); window_set_background_color(data->window, GColorWhite); window_set_user_data(data->window, data); window_set_click_config_provider_with_context(data->window, click_config_provider, data); window_set_window_handlers(data->window, &(WindowHandlers) { .load = prv_window_load, .unload = prv_window_unload, }); app_window_stack_push(data->window, true /* Animated */); } // ------------------------------------------------------------------------------- static void s_main(void) { init(); app_event_loop(); deinit(); } // ------------------------------------------------------------------------------- const PebbleProcessMd* temperature_demo_get_app_info(void) { static const PebbleProcessMdSystem s_temperature_demo_app_info = { .common.main_func = &s_main, .name = "Temperature" }; return (const PebbleProcessMd*) &s_temperature_demo_app_info; }