By Khumalo

03 Jan 2017 09:44 English 2 Replies

Im trying to change some text on the screen when an image is clicked. This is my image in the EDC file:

part { name: "image";
            type: IMAGE;
            description { state: "default" 0.0;
               max: 63 63;
               min: 63 63;
               image {
                  normal: "image.png";
               }
               rel1.relative: 1 1;
               rel2.relative: 0 0.0;
            }
            program
            {
               name: "imageClick";
               source: "image";
               signal: "mouse,clicked,*";
               action: SIGNAL_EMIT "imageClicked" "image";
            }
         }

Adding callback in code:

edje_object_signal_callback_add(ad->layout, "imageClicked" ,"image",imageClicked_cb, ad);

imageClicked_cb callback:

static void imageClicked_cb(void *data, Evas_Object *obj, const char *emission, const char *source)
{
    appdata_s *ad = data;
    elm_object_part_text_set(ad->layout, "text", "Clicked");

}

edje_object_signal_callback_add is called inside create_base_gui and imageClicked_cb is declared outside any other functions.

I'm aware it's possible to change the text solely inside the EDC file however i'd like to know how to do it through c aswell.

Thanks in advance for any help provided

Responses

2 Replies

Mango Bar

03 Jan 2017 09:43

Check following code

images {
   image:"tizen.png" COMP;
}

collections {

   group 
   { 

      name: "main";

      parts 
      {
         
         part 
         {
            name: "text";
            type:TEXT;
            description 
            {
               state: "default" 0.0;
               text
               {
                  text:"Hello Tizen";
                  size:25;
                  min:1 1;
                  align: 0.0 0.0;
                  
               }
               align: 0.0 1.0 ;
               color: 0 0 0 255;

            }
            
         }

         part 
         { 
            name: "image";
            type:IMAGE;

            description 
            { 
               state: "default" 0.0;
               max: 63 63;
               min: 63 63;

               image {
                  normal:"tizen.png";

               }

               rel1.relative: 1 1;
               rel2.relative: 0 0;               

            }

            program
            {
               name: "imageClick";
               source: "image";
               signal:"mouse,clicked,*";
               action: SIGNAL_EMIT "imageClicked" "image";
            }

         }
      }
   }
}

Use following callback in application source code

  elm_layout_signal_callback_add(ad->layout,"*","image",image_click_cb,ad);

image_click_cb callback


static void image_click_cb(void *data, Evas_Object *obj, void *event_info)
{
    appdata_s *ad = data;

    dlog_print(DLOG_INFO,"TAG","image_click_cb");

    elm_object_part_text_set(ad->layout,"text", "Clicked");
}

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Khumalo

04 Jan 2017 04:09

Thank you for your reply, the solution worked.

It seemed i was using

edje_object_signal_callback_add

instead of

 elm_layout_signal_callback_add

However, in the signal parameter of the: elm_layout_signal_callback_add, you have put "*", whereas it should be "imageClicked" because the text immediately changes to "clicked" if this isnt done.

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