yentl
/
modelverse_GUI


			
				
					
						
						
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							<class name="GenericToolbar">
    <relationships>
        <inheritance class="tk.Frame" priority="1"/>
        <inheritance class="MvKWidget" priority="0"/>
        <association name="buttons" class="Button"/>
        <association name="parent" class="A"/>
    </relationships>

    <constructor>
        <parameter name="parent"/>
        <super class="tk.Frame">
            <parameter expr="parent"/>
        </super>
        <super class="MvKWidget"/>
        <body>
            self.to_create = ["new", "open"]
            self.button_info = {"new": "Create a new model",
                                "open": "Open an existing model"}
            self.buttons = {}
        </body>
    </constructor>
    <destructor>
        <body>
            self.destroy()
        </body>
    </destructor>

    <scxml initial="init">
        <state id="init" initial="init_buttons">
            <onexit>
                <script>
                    self.pack()
                </script>
            </onexit>

            <state id="init_buttons">
                <onentry>
                    <raise event="create_instance" scope="cd">
                        <parameter expr="'buttons'"/>
                        <parameter expr="'Button'"/>
                        <parameter expr="{'parent': self, 'visual': ImageVisual('icons/%s.png' % self.to_create[0]), 'tooltip_text': self.button_info[self.to_create[0]], 'event_parameters': self.to_create[0], 'packing': {'side': tk.LEFT}}"/>
                    </raise>
                </onentry>

                <transition event="instance_created" target="../next_button">
                    <parameter name="association_name"/>
                    <raise event="start_instance" scope="cd">
                        <parameter expr="association_name"/>
                    </raise>

                    <script>
                        self.buttons[self.to_create[0]] = association_name
                        self.to_create.pop(0)
                    </script>
                </transition>
            </state>

            <state id="next_button">
                <transition cond="len(self.to_create) == 0" target="../../root"/>
                <transition cond="len(self.to_create) > 0" target="../init_buttons"/>
            </state>
        </state>

        <state id="root">
            <transition event="button_pressed" cond="event_name == 'new'" target=".">
                <parameter name="event_name"/>
                <raise event="create_new_model" scope="narrow" target="'parent'"/>
            </transition>

            <transition event="button_pressed" cond="event_name == 'open'" target=".">
                <parameter name="event_name"/>
                <raise event="open_model" scope="narrow" target="'parent'"/>
            </transition>

            <transition event="close" target="../closing"/>
        </state>

        <state id="closing">
            <onentry>
                <raise event="delete_instance" scope="cd">
                    <parameter expr="self.buttons.popitem()[1]"/>
                </raise>
            </onentry>

            <transition event="instance_deleted" cond="len(self.buttons) > 0" target="../closing"/>
            <transition event="instance_deleted" cond="len(self.buttons) == 0" target="../close"/>
        </state>
            
        <state id="close">
            <onentry>
                <raise event="close_window" scope="narrow" target="'parent'"/>
            </onentry>
        </state>
    </scxml>
</class>