gui/timeline.c click event

common/utils/T/tracer/gui/gui.h

@@ -88,6 +88,7 @@ int new_color(gui *gui, char *color);
  *      - resize     { int: width }
  *      - scrollup   { int [3]: x, y, key_modifiers }
  *      - scrolldown { int [3]: x, y, key_modifiers }
+ *      - click      { int: button }
  */
 
 /* same type as in gui_defs.h */

common/utils/T/tracer/gui/timeline.c

@@ -74,6 +74,10 @@ static void button(gui *_g, widget *_this, int x, int y,
     d[2] = key_modifiers;
     gui_notify(g, "scrolldown", _this, d);
   }
+  /* button 1/2/3 */
+  if ((button == 1 || button == 2 || button == 3) && up == 0) {
+    gui_notify(g, "click", _this, &button);
+  }
 }
 
 /*************************************************************************/