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/* Copyright (C) 2019-2021 Logaev Maxim (turbocat2001), GPLv2 */ |
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/* |
Info: App uses api from openweathermap.org. |
The standard configuration uses my token and the city of Moscow. |
You can always change it in the weather.json file. |
If you use UTF-8 encoding, then city names can be entered in different languages! |
*/ |
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#include <stdio.h> |
#include <string.h> |
#include "json/json.h" |
#include <kos32sys1.h> |
#include <kolibrisys.h> |
#include <clayer/http.h> |
#include <clayer/libimg.h> |
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#define VERSION "Weather 1.0b" |
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enum BUTTONS{ |
BTN_QUIT = 1, |
BTN_UPDATE = 2 |
}; |
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#define JSON_OBJ(X) value->u.object.values[X] |
#define OK 200 |
#define API "http://api.openweathermap.org/data/2.5/weather?q=%s&appid=%s&units=metric" |
#define IMAGE_URL "http://openweathermap.org/img/w/%s.png" |
#define START_YPOS 34 |
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Image *image; |
char full_url[256]; |
char full_url_image[256]; |
struct kolibri_system_colors sys_color_table; |
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#pragma pack(push,1) |
typedef struct { |
char *City; |
float wind_speed; |
//int wind_deg; |
int pressure; |
int humidity; |
char *weath_main; |
char *weath_desc; |
int visibility; |
int timezone; |
char* image_code; |
double temp; |
}open_weather_data; |
#pragma pack(pop) |
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open_weather_data myw; |
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void notify_show(char *text) |
{ |
start_app("/sys/@notify", text); |
} |
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void* safe_malloc(size_t size) // Безопасный malloc. Показывает уведомление об ошибке и закрывает программу если память не была выделена |
{ |
void *p=malloc(size); |
if(p==NULL){ |
notify_show("'Memory allocation error!' -E"); |
exit(0); |
}else{ |
return p; |
} |
} |
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static void draw_format_text_sys(int x, int y, color_t color, const char *format_str, ... ) |
{ |
char tmp_buff[100]; |
va_list ap; |
va_start (ap, format_str); |
vsnprintf(tmp_buff, sizeof tmp_buff ,format_str, ap); |
va_end(ap); |
draw_text_sys(tmp_buff, x, y , 0, color); |
} |
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void find_and_set(json_value *value, open_weather_data* weather) |
{ |
for(int i=0; i<value->u.object.length; i++){ |
if(!strcmp(JSON_OBJ(i).name, "main")){ |
weather->temp = JSON_OBJ(i).value->u.object.values[0].value->u.dbl; |
weather->pressure = JSON_OBJ(i).value->u.object.values[4].value->u.integer; |
weather->humidity = JSON_OBJ(i).value->u.object.values[5].value->u.integer; |
} |
if(!strcmp(JSON_OBJ(i).name, "name")){ |
weather->City = JSON_OBJ(i).value->u.string.ptr; |
} |
if(!strcmp(JSON_OBJ(i).name, "weather")){ |
weather->weath_desc = JSON_OBJ(i).value->u.array.values[0]->u.object.values[2].value->u.string.ptr; |
weather->image_code = JSON_OBJ(i).value->u.array.values[0]->u.object.values[3].value->u.string.ptr; |
} |
if(!strcmp(JSON_OBJ(i).name, "wind")){ |
weather->wind_speed = JSON_OBJ(i).value->u.object.values[0].value->u.dbl; |
} |
if(!strcmp(JSON_OBJ(i).name, "visibility")){ |
weather->visibility = JSON_OBJ(i).value->u.integer; |
} |
if(!strcmp(JSON_OBJ(i).name, "timezone")){ |
weather->timezone = JSON_OBJ(i).value->u.integer/60/60; |
} |
if(!strcmp(JSON_OBJ(i).name, "message")){ |
char *errmsg = safe_malloc(weather->timezone = JSON_OBJ(i).value->u.string.length+6); |
sprintf(errmsg,"'%s!' -E", JSON_OBJ(i).value->u.string.ptr); |
notify_show(errmsg); |
} |
} |
} |
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http_msg* get_json(char *City, char *Token) |
{ |
sprintf(full_url, API, City, Token); |
http_msg *h = http_get(full_url, 0, HTTP_FLAG_BLOCK, ""); |
http_long_receive(h); |
if (h->status == OK || h->status == 404) { |
return h; |
} else { |
return NULL; |
} |
} |
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void get_image(){ |
sprintf(full_url_image, IMAGE_URL, myw.image_code); |
http_msg *h= http_get(full_url_image, 0, HTTP_FLAG_BLOCK, ""); |
http_long_receive(h); |
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if (h->status == OK) { |
image = img_decode(h->content_ptr, h->content_length, 0); // Decode RAW data to Image data |
if (image->Type != IMAGE_BPP32) { |
image = img_convert(image, NULL, IMAGE_BPP32, 0, 0); // Convert image to format BPP32 |
if (!image) { |
notify_show("'Convetring image error!' -E"); |
exit(0); |
} |
} |
//blend = img_create(64, 64, IMAGE_BPP32); // Create an empty layer |
//img_fill_color(blend, 64, 64, sys_color_table.work_area); // Fill the layer with one color |
image = img_scale(image, 0, 0, 50, 50, NULL, LIBIMG_SCALE_STRETCH , LIBIMG_INTER_BILINEAR, 64, 64); |
//img_blend(blend, image, 0, 0, 0, 0, 64, 64); // Blending images to display the alpha channel. |
}else{ |
notify_show("'Image not loaded!!' -W"); |
} |
} |
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void RedrawGUI() //Рисуем окно |
{ |
char buff[1000]; |
pos_t win_pos = get_mouse_pos(0); // Получаем координаты курсора |
begin_draw(); //Начинаем рисование интерфейса ) |
sys_create_window(win_pos.x, win_pos.y, 220, START_YPOS+200, VERSION, 0xffffff, 0x14); // Создаём окно. |
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draw_format_text_sys(10, START_YPOS, 0xB0000000 /*| sys_color_table.work_text*/, "%s (UTC%+d)\0", myw.City, myw.timezone); |
draw_format_text_sys(11, START_YPOS, 0xB0000000 /*| sys_color_table.work_text */, "%s (UTC%+d)\0", myw.City, myw.timezone); |
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img_draw(image, 10, START_YPOS+30, 64,64,0,0); |
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draw_format_text_sys(10, START_YPOS+20, 0xb0000000 /* | sys_color_table.work_text */, myw.weath_desc); |
draw_format_text_sys(11, START_YPOS+20, 0xb0000000 /*| sys_color_table.work_text */, myw.weath_desc); |
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draw_format_text_sys(90, START_YPOS+45, 0xB1000000 /*| sys_color_table.work_text*/, "%.1f °C", myw.temp); |
draw_format_text_sys(91, START_YPOS+46, 0xB1000000 /*| sys_color_table.work_text*/, "%.1f °C", myw.temp); |
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draw_format_text_sys(10, START_YPOS+80, 0x90000000 /*| sys_color_table.work_text*/, "Pressure: %d hPa",myw.pressure); |
draw_format_text_sys(10, START_YPOS+100, 0x90000000 /* | sys_color_table.work_text*/,"Humidity: %d %s", myw.humidity, "%"); |
draw_format_text_sys(10, START_YPOS+120, 0x90000000 /*| sys_color_table.work_text*/, "Wind speed: %.1f m/s", myw.wind_speed); |
draw_format_text_sys(10, START_YPOS+140, 0x90000000 /*| sys_color_table.work_text*/, "Visibility: %d m", myw.visibility); |
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define_button(X_W(65,80), Y_H(START_YPOS+160,30), BTN_UPDATE, sys_color_table.work_button); |
draw_text_sys("Update",80 , START_YPOS+170, 0, 0x90000000 | sys_color_table.work_button_text); |
end_draw(); |
} |
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void get_config(char **City, char **Token) |
{ |
FILE *config_j = fopen("weather.json", "rb"); |
if(config_j==NULL){ |
notify_show("'Configuration file not found!' -E"); |
exit(0); |
} |
size_t size = _ksys_get_filesize("weather.json"); |
char *config_buff = safe_malloc(size+1); |
if(size != fread(config_buff, sizeof(char), size, config_j)){ |
notify_show("'The configuration file was not fully read!' -E"); |
exit(0); |
} |
json_value* value =json_parse (config_buff, size); |
for(int i=0; i<value->u.object.length; i++){ |
if(!strcmp(JSON_OBJ(i).name, "Location")){ |
*City = JSON_OBJ(i).value->u.string.ptr; |
} |
if(!strcmp(JSON_OBJ(i).name, "Token")){ |
*Token = JSON_OBJ(i).value->u.string.ptr; |
} |
} |
if(*City==NULL || *Token ==NULL){ |
notify_show("'Invalid config!!' -E"); |
exit(0); |
} |
free(config_buff); |
} |
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void Update(char* city, char* token) |
{ |
memset(&myw, 0, sizeof myw); |
myw.City="None"; |
myw.weath_desc="unknown"; |
http_msg *json_file = get_json(city, token); |
if(json_file != NULL){ |
json_value* value =json_parse (json_file->content_ptr, json_file->content_length); |
find_and_set(value, &myw); |
get_image(); |
}else{ |
notify_show("'Connection error!' -E"); |
} |
} |
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int main(){ |
kolibri_libimg_init(); |
get_system_colors(&sys_color_table); |
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char *City = NULL; |
char *Token = NULL; |
get_config(&City, &Token); |
Update(City,Token); |
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while(1){ |
switch(get_os_event()){ |
case KOLIBRI_EVENT_NONE: |
break; |
case KOLIBRI_EVENT_REDRAW: |
RedrawGUI(); |
break; |
case KOLIBRI_EVENT_BUTTON: // Событие обработки кнопок |
switch (get_os_button()){ |
case BTN_UPDATE: |
Update(City, Token); |
RedrawGUI(); |
break; |
case BTN_QUIT: |
exit(0); |
break; |
} |
} |
} |
return 0; |
} |