efl

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#define MSG_COLOR 1
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#define MSG_TEXT 2
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collections {
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   group {
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      name: "example_group";
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      parts {
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         part {
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            name: "part_right";
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            type: RECT;
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            clip_to: "part_right_clipper";
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            description {
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               min: 50 50;
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               max: 50 50;
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               state: "default" 0.0;
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               color: 0 0 255 255; /* blue */
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               rel1.relative: 1.0 0.5;
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               rel1.offset: -49 0;
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               rel2.relative: 1.0 0.5;
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            }
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         }
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         part {
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            name: "part_left";
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            type: RECT;
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            description {
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               color_class: "cc";
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               min: 50 50;
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               max: 50 50;
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               state: "default" 0.0;
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               rel1.relative: 0.0 0.5;
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               rel2.relative: 0.0 0.5;
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               rel2.offset: 50 -1;
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            }
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         }
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         part {
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            name: "text";
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            type: TEXT;
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            description {
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               min: 150 50;
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               max: 150 50;
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               fixed: 1 1;
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               color: 0 0 0 255;
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               state: "default" 0.0;
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               rel1.relative: 0.5 0.5;
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               rel2.relative: 0.5 0.5;
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               text {
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                  font:     "Sans";
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                  size:     20;
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                  min:      1 1;
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                  align:    0.5 0.5;
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               }
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            }
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         }
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         part {
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            name: "part_right_clipper";
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            type: RECT;
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            repeat_events: 1;
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            description {
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               min: 50 50;
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               max: 50 50;
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               state: "default" 0.0;
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               rel1.relative: 1.0 0.5;
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               rel1.offset: -49 0;
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               rel2.relative: 1.0 0.5;
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            }
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            description {
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               state: "hidden" 0.0;
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               inherit: "default" 0.0;
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               visible: 0;
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            }
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         }
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      }
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      script {
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        public global_str0;
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        public global_str1;
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        public global_str2;
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        public str_idx;
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        public set_text_string() {
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           new tmp[1024];
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           new idx;
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           idx = get_int(str_idx);
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           if (idx == 0)
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              get_str(global_str0, tmp, 1024);
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           else if (idx == 1)
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              get_str(global_str1, tmp, 1024);
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           else if (idx == 2)
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              get_str(global_str2, tmp, 1024);
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              else return;
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           set_text(PART:"text", tmp);
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           send_message(MSG_STRING, MSG_TEXT, tmp);
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        }
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        public message(Msg_Type:type, id, ...) {
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           if ((type == MSG_INT_SET) && (id == MSG_COLOR)) {
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               new r, g, b, a;
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               r = getarg(2);
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               g = getarg(3);
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               b = getarg(4);
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               a = getarg(5);
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               set_color_class("cc", r, g, b, a);
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           }
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        }
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      }
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      programs {
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         program {
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            name: "bootstrap";
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            signal: "load";
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            source: "";
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            script {
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               set_str(global_str0, "String one");
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               set_str(global_str1, "String two");
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               set_str(global_str2, "String three");
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               set_int(str_idx, 0);
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               set_text_string();
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            }
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         }
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         program { /* custom signal */
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            name: "part_right,hovered";
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            signal: "mouse,move";
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            source: "part_right";
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            action: SIGNAL_EMIT "mouse,over" "part_right";
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         }
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         program { /* hide right rectangle */
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            name: "part_right,hide";
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            signal: "part_right,hide";
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            source: "";
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            action: STATE_SET "hidden" 0.0;
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            target: "part_right_clipper";
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         }
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         program {
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            name: "part_right,show";
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            signal: "part_right,show";
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            source: "";
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            action: STATE_SET "default" 0.0;
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            target: "part_right_clipper";
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         }
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         program { /* change text part's string value */
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            name: "text,change";
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            signal: "mouse,clicked,1";
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            source: "part_left";
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            script {
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               new idx;
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               idx = get_int(str_idx);
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               idx = idx + 1;
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               if (idx > 2)
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                  set_int(str_idx, 0);
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               else
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                  set_int(str_idx, idx);
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               set_text_string();
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            }
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         }
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      }
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   }
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}
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