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- <class name="DropDown">
- <relationships>
- <association name="parent" class="A"/>
- </relationships>
- <!-- This is a hack to put some code before the super is called for tk.OptionMenu -->
- <method name="construct_strvar">
- <parameter name="parent"/>
- <parameter name="value"/>
- <body>
- self.strvar = tk.StringVar(parent)
- self.strvar.set(value)
- self.strvar.trace('w', lambda a, b, c: self.controller.addInput(Event("change_dropdown", "input", [id(self), self.strvar.get()])))
- return self.strvar
- </body>
- </method>
- <constructor>
- <parameter name="constructor_parameters" type='dict' default='{}' />
- <body>
- self.dropdown = tk.OptionMenu(constructor_parameters['parent'], self.construct_strvar(constructor_parameters['parent'], constructor_parameters['value']), *constructor_parameters['options'])
- self.name = constructor_parameters['name']
- print("Options: " + str(constructor_parameters['options']))
- </body>
- </constructor>
- <destructor>
- <body>
- self.dropdown.destroy()
- </body>
- </destructor>
- <scxml initial="main">
- <state id="main" initial='initializing'>
- <state id="initializing">
- <transition target="../ready">
- <raise event="tk_widget" scope="narrow" target="'parent'">
- <parameter expr="self.dropdown"/>
- </raise>
- </transition>
- </state>
- <state id="ready">
- <transition port='input' event="change_dropdown" target='.' cond='tagorid == id(self)'>
- <parameter name='tagorid'/>
- <parameter name='new_value'/>
- <raise event="changed_dropdown" scope="narrow" target="'parent'">
- <parameter expr="self.name"/>
- <parameter expr="new_value"/>
- </raise>
- </transition>
- <transition event="change_event_name" target=".">
- <parameter name="new_name"/>
- <script>
- self.name = new_name
- </script>
- </transition>
- </state>
- </state>
- </scxml>
- </class>
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