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