Watch some p0rn:

wget 'http://upload.wikimedia.org/wikipedia/en/2/24/Lenna.png'

Zeilennummern

    1 #include <stdio.h>
    2 #include <stdlib.h>
    3 
    4 #include <Ecore_Evas.h>
    5 #include <Ecore.h>
    6 
    7 
    8 int main(int argc, char **argv)
    9 {
   10   Ecore_Evas *ee;
   11   Evas *evas;
   12   Evas_Object *rect, *image;
   13 
   14   ecore_init();
   15   ecore_evas_init();
   16 
   17   ee = ecore_evas_software_x11_new(0, 0, 0, 0, 400, 300);
   18   ecore_evas_title_set(ee, "Ecore_Evas Template");
   19   ecore_evas_show(ee);
   20   evas = ecore_evas_get(ee);
   21 
   22   rect = evas_object_rectangle_add(evas);
   23   evas_object_color_set(rect, 0, 0, 0, 255);
   24   evas_object_resize(rect, 400, 300);
   25   evas_object_show(rect);
   26 
   27   image = evas_object_image_add(evas);
   28   evas_object_image_file_set(image, "Lenna.png", NULL);
   29   evas_object_image_fill_set(image, 0, 0, 400, 300);
   30   evas_object_resize(image, 400, 300);
   31   evas_object_show(image);
   32 
   33 
   34   ecore_main_loop_begin();
   35 
   36 
   37   return 0;
   38 }

Makefile:

pic: pic.c
        gcc pic.c -g -Wall -I/opt/e17/include/ecore-1 -I/opt/e17/include/evas-1 -I/opt/e17/include/eina-1 -I/opt/e17/include/eina-1/eina -I/opt/e17/include/eet-1 -L/opt/e17/lib -lecore_evas -o pic -g

just compile to find out functionality ;)

pic.c:
Zeilennummern

    1 #include <stdio.h>
    2 #include <stdlib.h>
    3 
    4 #include <Ecore_Evas.h>
    5 #include <Ecore.h>
    6 
    7 
    8 void focus_in_callback(void *data, Evas *e, void *event_info)
    9 {
   10   Evas_Object *txt = data;
   11   evas_object_text_text_set(txt, "IN");
   12   evas_object_show(txt);
   13 }
   14 
   15 void focus_out_callback(void *data, Evas *e, void *event_info)
   16 {
   17   Evas_Object *txt = data;
   18   evas_object_text_text_set(txt, "OUT");
   19   evas_object_show(txt);
   20 }
   21 
   22 int main(int argc, char **argv)
   23 {
   24   Ecore_Evas *ee;
   25   Evas *evas;
   26   Evas_Object *rect, *txt;
   27 
   28   ecore_init();
   29   ecore_evas_init();
   30 
   31   ee = ecore_evas_software_x11_new(0, 0, 0, 0, 400, 300);
   32   ecore_evas_title_set(ee, "Focus callback");
   33   ecore_evas_show(ee);
   34   evas = ecore_evas_get(ee);
   35 
   36   rect = evas_object_rectangle_add(evas);
   37   evas_object_color_set(rect, 0, 0, 0, 255);
   38   evas_object_resize(rect, 400, 300);
   39   evas_object_show(rect);
   40 
   41 
   42   txt = evas_object_text_add(evas);
   43   evas_object_color_set(txt, 0, 255, 255, 255);
   44   evas_object_move(txt, 200, 150);
   45   evas_object_text_font_set(txt, "Sans", 10);
   46   evas_object_text_text_set(txt, "ndef");
   47   evas_object_show(txt);
   48 
   49 
   50   evas_event_callback_add(evas, EVAS_CALLBACK_CANVAS_FOCUS_IN,
   51                           focus_in_callback, txt);
   52   evas_event_callback_add(evas, EVAS_CALLBACK_CANVAS_FOCUS_OUT,
   53                           focus_out_callback, txt);
   54 
   55   ecore_main_loop_begin();
   56 
   57   return 0;
   58 }

Makefile:

 

pic: pic.c
        gcc pic.c -g -Wall -I/opt/e17/include/ecore-1 -I/opt/e17/include/evas-1 -I/opt/e17/include/eina-1 -I/opt/e17/include/eina-1/eina -I/opt/e17/include/eet-1 -L/opt/e17/lib -lecore_evas -o pic -g

Evas is the enlightenment canvas library - it's pretty on the same level as SDL.

Here some code to show up a polygon and a line; there are no functions for pixels, circles and ellipses :(
The developers thought evas to be a library to load images and not to make all manually ;)

Hint: as evas does not provide ellipse, smooth paths or circle, one can calculate points and convert these to a polygon.

You must have a rectangle as a background unless you wanna let debug a e17-developer 3 hours long
pic.c:
Zeilennummern

    1 #include <stdio.h>
    2 #include <stdlib.h>
    3 
    4 #include <Ecore_Evas.h>
    5 #include <Ecore.h>
    6 
    7 
    8 int main(int argc, char **argv)
    9 {
   10   Ecore_Evas *ee;
   11   Evas *evas;
   12   Evas_Object *line, *rect, *poly;
   13 
   14   ecore_init();
   15   ecore_evas_init();
   16 
   17   ee = ecore_evas_software_x11_new(0, 0, 0, 0, 400, 300);
   18   ecore_evas_title_set(ee, "Ecore_Evas Template");
   19   ecore_evas_show(ee);
   20   evas = ecore_evas_get(ee);
   21 
   22   rect = evas_object_rectangle_add(evas);
   23   evas_object_color_set(rect, 0, 0, 0, 255);
   24   evas_object_resize(rect, 400, 300);
   25   evas_object_show(rect);
   26 
   27   line = evas_object_line_add(evas);
   28   evas_object_line_xy_set(line, 0, 0, 200, 300);
   29   evas_object_color_set(line, 255, 0, 0, 255);
   30   evas_object_show(line);
   31 
   32 
   33   poly = evas_object_polygon_add(evas);
   34   evas_object_polygon_point_add(poly, 10, 0);
   35   evas_object_polygon_point_add(poly, 10, 50);
   36   evas_object_polygon_point_add(poly, 50, 10);
   37   evas_object_color_set(poly, 0, 255, 0, 255);
   38   evas_object_show(poly);
   39 
   40   ecore_main_loop_begin();
   41 
   42 
   43   return 0;
   44 }

Makefile:

pic: pic.c
        gcc pic.c -g -Wall -I/opt/e17/include/ecore-1 -I/opt/e17/include/evas-1 -I/opt/e17/include/eina-1 -I/opt/e17/include/eina-1/eina -I/opt/e17/include/eet-1 -L/opt/e17/lib -lecore_evas -o pic -g

Yesterday I received the advent calendar from mister-wong/construktiv

Snowpenis @university - there he is again