gui.c

   1 #include <stdbool.h>
   2 #include <Eina.h>
   3 #include <Evas.h>
   4 #include <Ecore.h>
   5 #include <Ecore_Evas.h>
   6 #include "config.h"
   7 #include "kexec.h"
   8 #include "util.h"
   9
  10 /* drawing related stuff */
  11 static Ecore_Evas *ee;
  12 static Evas *evas;
  13
  14 void poweroff(void *data, Evas *evas, Evas_Object *obj, void *event);
  15
  16 typedef struct {
  17         const char *text;
  18         const char *logo;
  19         void(*callback)(void*, Evas*, Evas_Object*, void *);
  20 } MenuItem;
  21
  22 MenuItem menu[] = {
  23         { "Power Off", POWEROFF_LOGO, poweroff },
  24 };
  25
  26 void poweroff(void *data, Evas *evas, Evas_Object *obj, void *event) {
  27         system("poweroff");
  28 }
  29
  30 static void bootitem_clicked(void *data, Evas *evas, Evas_Object *obj, void *event){
  31         boot_kernel((BootItem*)data);
  32         /* XXX: shouldn't be reached, display an error message? */
  33 }
  34
  35 static bool canvas_init(){
  36         if (!ecore_init() || !ecore_evas_init())
  37                 return false;
  38
  39         /* XXX: fixed dimensions */
  40         if (getenv("DISPLAY"))
  41                 ee = ecore_evas_software_x11_new(NULL, 0, 0, 0, 480, 640);
  42         else
  43                 ee = ecore_evas_fb_new(NULL, 0, 480, 640);
  44
  45         if (!ee)
  46                 return false;
  47
  48         ecore_evas_title_set(ee, APPNAME);
  49         ecore_evas_borderless_set(ee, 0);
  50         ecore_evas_show(ee);
  51
  52         evas = ecore_evas_get(ee);
  53         evas_font_path_append(evas, FONT_PATH);
  54
  55         return true;
  56 }
  57
  58 static int draw_item(const char *text, const char *logo, void(*callback)(void*, Evas*, Evas_Object*, void *),
  59               void *data, int x, int y) {
  60
  61         Evas_Object *ebox, *elogo, *etext;
  62
  63         elogo = evas_object_image_add(evas);
  64         evas_object_image_file_set(elogo, logo, NULL);
  65         evas_object_image_fill_set(elogo, 0, 0, LOGO_WIDTH, LOGO_HEIGHT);
  66         evas_object_resize(elogo, LOGO_WIDTH, LOGO_HEIGHT);
  67         evas_object_show(elogo);
  68
  69         etext = evas_object_text_add(evas);
  70         evas_object_text_font_set(etext, FONT, FONT_SIZE);
  71         evas_object_text_text_set(etext, text);
  72         evas_object_show(etext);
  73
  74         ebox = evas_object_box_add(evas);
  75         evas_object_box_align_set(ebox, 0, 0.5);
  76         evas_object_box_padding_set(ebox, 10, 10);
  77         evas_object_move(ebox, x, y);
  78         evas_object_resize(ebox, 680, 50);
  79         evas_object_box_append(ebox, elogo);
  80         evas_object_box_append(ebox, etext);
  81         evas_object_event_callback_add(ebox, EVAS_CALLBACK_MOUSE_UP, callback, data);
  82
  83         evas_object_show(ebox);
  84
  85         return 0;
  86 }
  87
  88 int gui(int argc, char **argv) {
  89
  90         if (!canvas_init()) {
  91                 eprint("Couldn't init GUI\n");
  92                 return 1;
  93         }
  94
  95         /* search for system images to boot and display them in a list */
  96         Eina_List *l, *systems = scan_system();
  97         int i, y = 50;
  98         BootItem *s;
  99
 100         EINA_LIST_FOREACH(systems, l, s) {
 101                 draw_item(s->dev, s->logo, bootitem_clicked, s,  10, y);
 102                 y += LOGO_HEIGHT + 10;
 103         }
 104
 105         /* add pre defined menu entries */
 106         for (i = 0; i < countof(menu); i++) {
 107                 draw_item(menu[i].text, menu[i].logo, menu[i].callback, NULL,  10, y);
 108                 y += LOGO_HEIGHT + 10;
 109         }
 110
 111         ecore_main_loop_begin();
 112
 113         return 0;
 114 }