yentl
/
modelverse_GUI


			
				
					
						
						
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							<class name="MainWindow">
    <relationships>
        <inheritance class="tk.Toplevel" priority="1"/>
        <inheritance class="SCCDWidget" priority="0"/>
        <association name="parent" class="A"/>
        <association name="generic_toolbars" class="Toolbar"/>
        <association name="model_toolbars" class="Toolbar"/>
        <association name="subwindow" class="Window"/>
        <association name="canvas" class="Canvas"/>
        <association name="progress_bar" class="ProgressBar"/>
    </relationships>

    <constructor>
        <super class="tk.Toplevel"/>
        <super class="SCCDWidget"/>
        <body>
            self.toolbar_frame = tk.Frame(self)
            self.canvas_frame = tk.Frame(self)
            self.progressbar_frame = tk.Frame(self)
            self.toolbar_frame.pack(fill=tk.X)
            self.canvas_frame.pack(fill=tk.BOTH, expand=tk.TRUE)
            self.progressbar_frame.pack(fill=tk.X)
            self.model_loaded = False

            global current_mapper
            current_mapper = None
            global current_rendered_model
            current_rendered_model = None
            global current_metamodel
            current_metamodel = None
            global current_model
            current_model = None
        </body>
    </constructor>

    <destructor>
        <body>
            self.destroy()
        </body>
    </destructor>

    <scxml initial="init">
        <parallel id="init">
            <state id="init" initial="init">
                <state id="init" initial="generic_toolbar">
                    <state id="generic_toolbar">
                        <onentry>
                            <raise event="create_instance" scope="cd">
                                <parameter expr="'generic_toolbars'"/>
                                <parameter expr="'GenericToolbar'"/>
                                <parameter expr="self.toolbar_frame"/>
                            </raise>
                        </onentry>

                        <transition event="instance_created" target="../pack_generic">
                            <parameter name="association_name"/>
                            <raise event="start_instance" scope="cd">
                                <parameter expr="association_name"/>
                            </raise>
                        </transition>
                    </state>
                    
                    <state id="pack_generic">
                        <transition event="tk_widget" target="../progressbar">
                            <parameter name="tk_elem"/>
                            <script>
                                tk_elem.pack(anchor=tk.NW)
                            </script>
                        </transition>
                    </state>

                    <state id="progressbar">
                        <onentry>
                            <raise event="create_instance" scope="cd">
                                <parameter expr="'progress_bar'"/>
                                <parameter expr="'ProgressBar'"/>
                                <parameter expr="{'parent': self.progressbar_frame}"/>
                            </raise>
                        </onentry>

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

                    <state id="pack_progressbar">
                        <transition event="tk_widget" target="../../running">
                            <parameter name="tk_elem"/>
                            <script>
                                tk_elem.pack(side=tk.BOTTOM, fill=tk.X, expand=tk.TRUE)
                            </script>
                        </transition>
                    </state>
                </state>

                <state id="running" initial="idle">
                    <state id="idle">
                        <onentry>
                            <raise event="update_status" scope="narrow" target="'progress_bar'">
                                <parameter expr="0"/>
                                <parameter expr="'Ready for action!'"/>
                            </raise>
                        </onentry>
                        <transition event="create_new_model" target="../create_new_model"/>
                        <transition event="open_model" target="../open_model"/>
                        <transition event="rerender_model" target="../rerender_model"/>
                        <transition event="new_rendered" cond="current_mapper is not None" target="../new_rendered"/>
                        <transition event="verify" target="../verify_model"/>
                        <transition event="conf_bottom" target="../conf_bottom"/>
                        <transition event="custom_MM" target="../custom_MM"/>
                        <transition event="upload_MVC" target="../upload_MVC"/>
                        <transition event="add_object_diagrams" target="../add_object_diagrams"/>
                        <transition event="modify_defined_attrs" target="../modify_defined_attrs">
                            <parameter name="as_element"/>
                            <script>
                                self.as_element = as_element
                            </script>
                        </transition>

                        <transition event="change_metamodel" target="../change_metamodel">
                            <parameter name="new_metamodel"/>
                            <script>
                                global current_metamodel
                                current_metamodel = new_metamodel
                            </script>
                        </transition>
                        <transition event="change_mapper" target="../change_mapper">
                            <parameter name="new_mapper"/>
                            <script>
                                global current_mapper
                                current_mapper = new_mapper
                                print("Switch mapper to " + str(new_mapper))
                            </script>
                        </transition>
                        <transition event="change_rendered" target="../change_rendered">
                            <parameter name="new_rendered"/>
                            <script>
                                global current_rendered_model
                                current_rendered_model = new_rendered
                            </script>
                        </transition>
                        <transition event="select_for_creation" target=".">
                            <parameter name="element_name"/>
                            <raise event="select_for_creation" scope="narrow" target="'canvas'">
                                <parameter expr="element_name"/>
                            </raise>
                        </transition>
                    </state>

                    <state id="modify_defined_attrs" initial="create_window">
                        <state id="create_window">
                            <onentry>
                                <raise event="create_instance" scope="cd">
                                    <parameter expr="'subwindow'"/>
                                    <parameter expr="'AttributeEditor'"/>
                                    <parameter expr="current_model"/>
                                    <parameter expr="self.as_element"/>
                                </raise>
                            </onentry>

                            <transition event="instance_created" target="../wait_for_finished">
                                <parameter name="assoc_name"/>
                                <raise event="start_instance" scope="cd">
                                    <parameter expr="assoc_name"/>
                                </raise>
                                <script>
                                    self.current_window = assoc_name
                                </script>
                            </transition>
                        </state>

                        <state id="wait_for_finished">
                            <transition event="close_window" target="../../rerender_model">
                                <raise event="delete_instance" scope="cd">
                                    <parameter expr="self.current_window"/>
                                </raise>
                            </transition>
                        </state>
                    </state>

                    <state id="add_object_diagrams" initial="init">
                        <state id="init">
                            <onentry>
                                <raise event="mv_request" scope="broad">
                                    <parameter expr="'transformation_add_AL'"/>
                                    <parameter expr="[{'rendered': 'formalisms/MM_render', 'abstract': current_metamodel}, {'rendered': 'formalisms/MM_render'}, 'models/render_OD/' + current_metamodel, open('models/render_OD.alc', 'r').read()]"/>
                                </raise>
                                <raise event="update_status" scope="narrow" target="'progress_bar'">
                                    <parameter expr="10"/>
                                    <parameter expr="'Adding transformation...'"/>
                                </raise>
                            </onentry>

                            <transition event="mv_response" target="../modify_render_OD">
                                <parameter name="context"/>
                                <raise event="update_status" scope="narrow" target="'progress_bar'">
                                    <parameter expr="25"/>
                                    <parameter expr="'Switching contexts...'"/>
                                </raise>
                                <script>
                                    self.context = context
                                </script>
                            </transition>

                            <transition event="mv_exception" target="../../idle"/>
                        </state>

                        <state id="modify_render_OD" initial="exit">
                            <onexit>
                                <script>
                                    self.context = None
                                </script>
                            </onexit>

                            <state id="exit">
                                <onentry>
                                    <raise event="mv_request_context" scope="broad">
                                        <parameter expr="'exit'"/>
                                        <parameter expr="[]"/>
                                        <parameter expr="self.context"/>
                                    </raise>
                                    <raise event="update_status" scope="narrow" target="'progress_bar'">
                                        <parameter expr="30"/>
                                        <parameter expr="'Modifying transformation merged metamodel...'"/>
                                    </raise>
                                </onentry>

                                <transition event="mv_response" target="../../../open_model/search_CS_mappers">
                                    <script>
                                        global current_mapper
                                        current_mapper = 'models/render_OD/' + current_metamodel
                                    </script>
                                </transition>
                            </state>
                        </state>
                    </state>

                    <state id="upload_MVC" initial="load_code">
                        <state id="load_code">
                            <onentry>
                                <script>
                                    from tkFileDialog import askopenfilename
                                    self.filename = askopenfilename()
                                </script>
                            </onentry>

                            <transition cond="self.filename is not None" target="../overwriting_model">
                                <raise event="mv_request" scope="broad">
                                    <parameter expr="'model_overwrite'"/>
                                    <parameter expr="[current_model, open(self.filename, 'r').read()]"/>
                                </raise>
                                <raise event="update_status" scope="narrow" target="'progress_bar'">
                                    <parameter expr="10"/>
                                    <parameter expr="'Uploading model...'"/>
                                </raise>
                            </transition>

                            <transition cond="self.filename is None" target="../../idle"/>
                        </state>

                        <state id="overwriting_model">
                            <transition event="mv_response" target="../../rerender_model">
                                <raise event="update_status" scope="narrow" target="'progress_bar'">
                                    <parameter expr="50"/>
                                    <parameter expr="'Rerendering model...'"/>
                                </raise>
                            </transition>
                        </state>
                    </state>

                    <state id="change_metamodel">
                        <onentry>
                            <script>
                                print("MM -> " + current_metamodel)
                            </script>
                            <raise event="mv_request" scope="broad">
                                <parameter expr="'alter_context'"/>
                                <parameter expr="[current_model, current_metamodel]"/>
                            </raise>

                            <raise event="update_status" scope="narrow" target="'progress_bar'">
                                <parameter expr="20"/>
                                <parameter expr="'Storing model context...'"/>
                            </raise>
                        </onentry>

                        <transition event="mv_response" target="../open_model/search_CS_mappers"/>
                    </state>

                    <state id="conf_bottom" initial="check_if_exists">
                        <state id="check_if_exists">
                            <transition cond="'formalisms/Bottom' in self.allowed_metamodels" target="../../idle"/>
                            <transition cond="'formalisms/Bottom' not in self.allowed_metamodels" target="../add_bottom"/>
                        </state>

                        <state id="add_bottom">
                            <onentry>
                                <raise event="mv_request" scope="broad">
                                    <parameter expr="'conformance_add'"/>
                                    <parameter expr="[current_model, 'formalisms/Bottom']"/>
                                </raise>

                                <raise event="update_status" scope="narrow" target="'progress_bar'">
                                    <parameter expr="10"/>
                                    <parameter expr="'Storing model context...'"/>
                                </raise>

                                <script>
                                    global current_metamodel
                                    current_metamodel = 'formalisms/Bottom'
                                </script>
                            </onentry>

                            <transition event="mv_response" target="../../open_model/search_metamodels"/>
                        </state>
                    </state>

                    <state id="custom_MM" initial="query">
                        <state id="query">
                            <onentry>
                                <raise event="create_instance" scope="cd">
                                    <parameter expr="'subwindow'"/>
                                    <parameter expr="'Browser'"/>
                                    <parameter expr="'Select metamodel to use.'"/>
                                    <parameter expr="['formalisms/SimpleClassDiagrams']"/>
                                </raise>
                                <raise event="update_status" scope="narrow" target="'progress_bar'">
                                    <parameter expr="0"/>
                                    <parameter expr="'Browsing for metamodel...'"/>
                                </raise>
                            </onentry>

                            <transition event="instance_created" target="../wait_for_metamodel">
                                <parameter name="association_name"/>
                                <raise event="start_instance" scope="cd">
                                    <parameter expr="association_name"/>
                                </raise>
                                <script>
                                    self.subwindow = association_name
                                </script>
                            </transition>
                        </state>

                        <state id="wait_for_metamodel" initial="wait_for_result">
                            <onentry>
                                <raise event="update_status" scope="narrow" target="'progress_bar'">
                                    <parameter expr="10"/>
                                    <parameter expr="'Browsing for model... OK'"/>
                                </raise>
                            </onentry>

                            <state id="wait_for_result">
                                <transition event="browse_result" cond="result not in self.allowed_metamodels" target="../got_result">
                                    <parameter name="result"/>
                                    <script>
                                        global current_metamodel
                                        current_metamodel = result
                                    </script>
                                </transition>

                                <transition event="close_window" target="../../../idle">
                                    <raise event="delete_instance" scope="cd">
                                        <parameter expr="self.subwindow"/>
                                    </raise>
                                </transition>

                            </state>

                            <state id="got_result">
                                <transition event="close_window" target="../mv_processing">
                                    <raise event="delete_instance" scope="cd">
                                        <parameter expr="self.subwindow"/>
                                    </raise>

                                    <raise event="mv_request" scope="broad">
                                        <parameter expr="'conformance_add'"/>
                                        <parameter expr="[current_model, current_metamodel]"/>
                                    </raise>
                                </transition>
                            </state>

                            <state id="mv_processing">
                                <transition event="mv_response" target="../../../open_model/search_metamodels"/>
                            </state>
                        </state>
                    </state>

                    <state id="change_mapper">
                        <transition target="../open_model/search_CS_mappers"/>
                    </state>

                    <state id="change_rendered">
                        <transition target="../rerender_model"/>
                    </state>

                    <state id="verify_model" initial="request">
                        <state id="request">
                            <onentry>
                                <raise event="mv_request" scope="broad">
                                    <parameter expr="'verify'"/>
                                    <parameter expr="[current_model, current_metamodel]"/>
                                </raise>
                            </onentry>

                            <transition event="mv_progress" target=".">
                                <parameter name="result"/>

                                <raise event="update_status" scope="narrow" target="'progress_bar'">
                                    <parameter expr="result * 100"/>
                                    <parameter expr="'Verifying...'"/>
                                </raise>
                            </transition>

                            <transition event="mv_response" target="../show_result">
                                <parameter name="result"/>
                                <raise event="create_instance" scope="cd">
                                    <parameter expr="'subwindow'"/>
                                    <parameter expr="'Popup'"/>
                                    <parameter expr="result"/>
                                </raise>

                            </transition>
                        </state>

                        <state id="show_result">
                            <transition event="instance_created" target="../wait_for_close">
                                <parameter name="assoc_name"/>
                                <raise event="start_instance" scope="cd">
                                    <parameter expr="assoc_name"/>
                                </raise>
                            </transition>
                        </state>

                        <state id="wait_for_close">
                            <transition event="close_window" target="../../idle">
                                <raise event="delete_instance" scope="cd">
                                    <parameter expr="'subwindow'"/>
                                </raise>
                            </transition>
                        </state>
                    </state>

                    <state id="open_model" initial="query_model">
                        <state id="query_model">
                            <onentry>
                                <raise event="create_instance" scope="cd">
                                    <parameter expr="'subwindow'"/>
                                    <parameter expr="'Browser'"/>
                                    <parameter expr="'Select model to open'"/>
                                    <parameter expr="[]"/>
                                </raise>
                                <raise event="update_status" scope="narrow" target="'progress_bar'">
                                    <parameter expr="0"/>
                                    <parameter expr="'Browsing for model...'"/>
                                </raise>
                            </onentry>

                            <transition event="instance_created" target="../wait_for_model">
                                <parameter name="association_name"/>
                                <raise event="start_instance" scope="cd">
                                    <parameter expr="association_name"/>
                                </raise>
                                <script>
                                    self.subwindow = association_name
                                </script>
                            </transition>
                        </state>

                        <state id="wait_for_model">
                            <transition event="close_window" target="../../idle">
                                <raise event="delete_instance" scope="cd">
                                    <parameter expr="self.subwindow"/>
                                </raise>

                                <raise event="update_status" scope="narrow" target="'progress_bar'">
                                    <parameter expr="10"/>
                                    <parameter expr="'Browsing for model... OK'"/>
                                </raise>
                            </transition>

                            <transition event="browse_result" target="../got_model">
                                <parameter name="result"/>
                                <script>
                                    global current_model
                                    current_model = result
                                </script>
                            </transition>
                        </state>

                        <state id="got_model">
                            <transition event="close_window" target="../search_metamodels">
                                <raise event="delete_instance" scope="cd">
                                    <parameter expr="self.subwindow"/>
                                </raise>
                            </transition>
                        </state>

                        <state id="search_metamodels">
                            <onentry>
                                <raise event="mv_request" scope="broad">
                                    <parameter expr="'model_types'"/>
                                    <parameter expr="[current_model]"/>
                                </raise>
                                <raise event="update_status" scope="narrow" target="'progress_bar'">
                                    <parameter expr="10"/>
                                    <parameter expr="'Querying existing metamodels...'"/>
                                </raise>
                            </onentry>

                            <transition event="mv_response" target="../search_CS_mappers">
                                <parameter name="result"/>
                                <script>
                                    global current_metamodel
                                    print("Allowed metamodels: " + str(result))
                                    if len(result) > 0:
                                        current_metamodel = next(iter(result))
                                    else:
                                        current_metamodel = 'formalisms/Bottom'
                                    self.allowed_metamodels = result
                                </script>
                                <raise event="update_status" scope="narrow" target="'progress_bar'">
                                    <parameter expr="20"/>
                                    <parameter expr="'Querying existing metamodels... OK'"/>
                                </raise>
                            </transition>
                        </state>

                        <state id="search_CS_mappers">
                            <onentry>
                                <raise event="mv_request" scope="broad">
                                    <parameter expr="'transformation_between'"/>
                                    <parameter expr="[current_metamodel, 'formalisms/MM_render']"/>
                                </raise>
                            </onentry>

                            <transition event="mv_response" target="../check_CS_mapper">
                                <parameter name="result"/>
                                <script>
                                    print("MM: " + str(current_metamodel))
                                    print("Allowed mappers: " + str(result))
                                    self.allowed_mappers = list(result)
                                    global current_mapper
                                    if len(result) > 0:
                                        if current_mapper not in result:
                                            current_mapper = next(iter(result))
                                            print("CHANGING MAPPER TO " + str(current_mapper))
                                    else:
                                        current_mapper = None
                                        print("REMOVING MAPPER")
                                </script>
                            </transition>
                        </state>

                        <state id="check_CS_mapper">
                            <transition cond="current_mapper is None" target="../../rerender_model">
                                <script>
                                    global current_rendered_model
                                    current_rendered_model = None
                                    self.allowed_rendered = []
                                </script>
                                <raise event="clear_canvas" scope="narrow" target="'canvas'"/>
                            </transition>
                            <transition cond="current_mapper is not None" target="../search_CS_rendered"/>
                        </state>

                        <state id="search_CS_rendered">
                            <onentry>
                                <raise event="mv_request" scope="broad">
                                    <parameter expr="'model_rendered'"/>
                                    <parameter expr="[current_model, current_mapper]"/>
                                </raise>
                            </onentry>

                            <transition event="mv_response" target="../store_metamodel">
                                <parameter name="result"/>
                                <script>
                                    print("Allowed rendered: " + str(result))
                                    print("Current mapper: " + str(current_mapper))
                                    self.allowed_rendered = list(result)
                                    global current_rendered_model

                                    if (len(result) > 0):
                                        if current_rendered_model not in result:
                                            print("Reusing an existing rendered model")
                                            current_rendered_model = next(iter(result))
                                    else:
                                        print("Creating new rendered model!")
                                        current_rendered_model = "rendered/%s" % str(uuid.uuid4())
                                        self.allowed_rendered.append(current_rendered_model)
                                </script>
                            </transition>
                        </state>

                        <state id="store_metamodel">
                            <onentry>
                                <raise event="mv_request" scope="broad">
                                    <parameter expr="'alter_context'"/>
                                    <parameter expr="[current_model, current_metamodel]"/>
                                </raise>
                                <raise event="update_status" scope="narrow" target="'progress_bar'">
                                    <parameter expr="45"/>
                                    <parameter expr="'Storing model context...'"/>
                                </raise>
                            </onentry>

                            <transition event="mv_response" target="../../rerender_model"/>
                        </state>
                    </state>

                    <state id="new_rendered">
                        <onentry>
                            <script>
                                global current_rendered_model
                                current_rendered_model = "rendered/%s" % str(uuid.uuid4())
                                self.allowed_rendered.append(current_rendered_model)
                            </script>
                        </onentry>

                        <transition target="../rerender_model"/>
                    </state>

                    <state id="create_new_model" initial="query_metamodel">
                        <state id="query_metamodel">
                            <onentry>
                                <raise event="create_instance" scope="cd">
                                    <parameter expr="'subwindow'"/>
                                    <parameter expr="'Browser'"/>
                                    <parameter expr="'Select metamodel to instantiate'"/>
                                    <parameter expr="['formalisms/SimpleClassDiagrams']"/>
                                </raise>
                                <raise event="update_status" scope="narrow" target="'progress_bar'">
                                    <parameter expr="5"/>
                                    <parameter expr="'Browsing for metamodel...'"/>
                                </raise>
                            </onentry>

                            <transition event="instance_created" target="../wait_for_metamodel">
                                <parameter name="association_name"/>
                                <raise event="start_instance" scope="cd">
                                    <parameter expr="association_name"/>
                                </raise>
                                <script>
                                    self.subwindow = association_name
                                </script>
                            </transition>
                        </state>

                        <state id="wait_for_metamodel">
                            <transition event="close_window" target="../../idle">
                                <raise event="delete_instance" scope="cd">
                                    <parameter expr="self.subwindow"/>
                                </raise>
                            </transition>

                            <transition event="browse_result" target="../got_mm">
                                <parameter name="result"/>
                                <script>
                                    global current_metamodel
                                    current_metamodel = result
                                </script>
                            </transition>
                        </state>

                        <state id="got_mm">
                            <transition event="close_window" target="../prompt_model_name">
                                <raise event="delete_instance" scope="cd">
                                    <parameter expr="self.subwindow"/>
                                </raise>
                            </transition>
                        </state>

                        <state id="prompt_model_name">
                            <onentry>
                                <raise event="create_instance" scope="cd">
                                    <parameter expr="'subwindow'"/>
                                    <parameter expr="'PromptWindow'"/>
                                    <parameter expr="{'Model name': ''}"/>
                                    <parameter expr="{}"/>
                                </raise>
                                <raise event="update_status" scope="narrow" target="'progress_bar'">
                                    <parameter expr="15"/>
                                    <parameter expr="'Prompt model name...'"/>
                                </raise>
                            </onentry>

                            <transition event="instance_created" target="../waiting_for_model_name">
                                <parameter name="association_name"/>
                                <raise event="start_instance" scope="cd">
                                    <parameter expr="association_name"/>
                                </raise>
                                <script>
                                    global current_model
                                    self.subwindow = association_name
                                    current_model = ""
                                </script>
                            </transition>
                        </state>

                        <state id="waiting_for_model_name">
                            <transition event="prompt_results" target=".">
                                <parameter name="results"/>
                                <script>
                                    global current_model
                                    current_model = results["Model name"]
                                </script>
                            </transition>

                            <transition event="close_window" cond="current_model != ''" target="../creating_model">
                                <raise event="delete_instance" scope="cd">
                                    <parameter expr="self.subwindow"/>
                                </raise>
                            </transition>

                            <transition event="close_window" cond="current_model == ''" target="../../idle">
                                <raise event="delete_instance" scope="cd">
                                    <parameter expr="self.subwindow"/>
                                </raise>
                            </transition>
                        </state>

                        <state id="creating_model">
                            <onentry>
                                <raise event="mv_request" scope="broad">
                                    <parameter expr="'model_add'"/>
                                    <parameter expr="[current_model, current_metamodel, '']"/>
                                </raise>
                                <raise event="update_status" scope="narrow" target="'progress_bar'">
                                    <parameter expr="25"/>
                                    <parameter expr="'Creating empty model...'"/>
                                </raise>
                            </onentry>

                            <transition event="mv_response" target="../../open_model/search_metamodels">
                                <raise event="update_status" scope="narrow" target="'progress_bar'">
                                    <parameter expr="50"/>
                                    <parameter expr="'Creating empty model... OK'"/>
                                </raise>
                            </transition>
                        </state>
                    </state>

                    <state id="rerender_model" initial="initial_render">
                        <state id="initial_render">
                            <transition cond="self.model_loaded" target="../recreate_toolbars"/>
                            <transition cond="not self.model_loaded" target="../canvas">
                                <script>
                                    self.model_loaded = True
                                </script>
                            </transition>
                        </state>

                        <state id="recreate_toolbars" initial="waiting">
                            <onentry>
                                <raise event="close" scope="narrow" target="'model_toolbars'"/>
                                <script>
                                    self.nr_toolbars = 3
                                </script>
                            </onentry>

                            <state id="waiting">
                                <transition event="close_window" target=".">
                                    <script>
                                        self.nr_toolbars -= 1
                                    </script>
                                </transition>
                                <transition cond="self.nr_toolbars == 0" target="../close_all"/>
                            </state>

                            <state id="close_all">
                                <transition target="../../model_toolbars">
                                    <raise event="delete_instance" scope="cd">
                                        <parameter expr="'model_toolbars'"/>
                                    </raise>
                                </transition>
                            </state>
                        </state>

                        <state id="canvas">
                            <onentry>
                                <raise event="create_instance" scope="cd">
                                    <parameter expr="'canvas'"/>
                                    <parameter expr="'Canvas'"/>
                                    <parameter expr="self.canvas_frame"/>
                                </raise>
                            </onentry>
                            
                            <transition event="instance_created" target="../pack_canvas">
                                <parameter name="association_name"/>
                                <raise event="start_instance" scope="cd">
                                    <parameter expr="association_name"/>
                                </raise>
                            </transition>
                        </state>

                        <state id="pack_canvas">
                            <transition event="tk_widget" target="../model_toolbars">
                                <parameter name="tk_elem"/>
                                <script>
                                    tk_elem.pack(fill=tk.BOTH, expand=tk.TRUE)
                                </script>
                            </transition>
                        </state>

                        <state id="model_toolbars" initial="mm_toolbar">
                            <state id="mm_toolbar">
                                <onentry>
                                    <raise event="create_instance" scope="cd">
                                        <parameter expr="'model_toolbars'"/>
                                        <parameter expr="'MetamodellingToolbar'"/>
                                        <parameter expr="self.toolbar_frame"/>
                                        <parameter expr="current_metamodel"/>
                                        <parameter expr="self.allowed_metamodels"/>
                                    </raise>
                                </onentry>

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

                            <state id="pack_mm_toolbar">
                                <transition event="tk_widget" target="../cs_toolbar">
                                    <parameter name="tk_elem"/>
                                    <script>
                                        tk_elem.pack(anchor=tk.W)
                                    </script>
                                </transition>
                            </state>

                            <state id="cs_toolbar">
                                <onentry>
                                    <raise event="create_instance" scope="cd">
                                        <parameter expr="'model_toolbars'"/>
                                        <parameter expr="'ConcreteSyntaxToolbar'"/>
                                        <parameter expr="self.toolbar_frame"/>
                                        <parameter expr="self.allowed_mappers"/>
                                        <parameter expr="self.allowed_rendered"/>
                                    </raise>
                                </onentry>

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

                            <state id="pack_cs_toolbar">
                                <transition event="tk_widget" target="../fetch_types">
                                    <parameter name="tk_elem"/>
                                    <script>
                                        tk_elem.pack(anchor=tk.W)
                                    </script>
                                </transition>
                            </state>

                            <state id="fetch_types">
                                <onentry>
                                    <raise event="mv_request" scope="broad">
                                        <parameter expr="'types'"/>
                                        <parameter expr="[current_model]"/>
                                    </raise>
                                </onentry>

                                <transition event="mv_response" target="../dsl_toolbar">
                                    <parameter name="result"/>
                                    <raise event="create_instance" scope="cd">
                                        <parameter expr="'model_toolbars'"/>
                                        <parameter expr="'DSLToolbar'"/>
                                        <parameter expr="self.toolbar_frame"/>
                                        <parameter expr="result"/>
                                    </raise>
                                </transition>
                            </state>

                            <state id="dsl_toolbar">
                                <transition event="instance_created" target="../pack_dsl_toolbar">
                                    <parameter name="association_name"/>
                                    <raise event="start_instance" scope="cd">
                                        <parameter expr="association_name"/>
                                    </raise>
                                </transition>
                            </state>

                            <state id="pack_dsl_toolbar">
                                <transition event="tk_widget" cond="current_mapper is None" target="../../../idle">
                                    <parameter name="tk_elem"/>
                                    <script>
                                        tk_elem.pack(anchor=tk.W)
                                    </script>
                                </transition>

                                <transition event="tk_widget" cond="current_mapper is not None" target="../../request_render">
                                    <parameter name="tk_elem"/>
                                    <script>
                                        tk_elem.pack(anchor=tk.W)
                                    </script>
                                </transition>
                            </state>
                        </state>

                        <state id="request_render">
                            <onentry>
                                <raise event="mv_request" scope="broad">
                                    <parameter expr="'model_render'"/>
                                    <parameter expr="[current_model, current_mapper, current_rendered_model]"/>
                                </raise>
                                <raise event="update_status" scope="narrow" target="'progress_bar'">
                                    <parameter expr="50"/>
                                    <parameter expr="'Perceptualizing model...'"/>
                                </raise>
                            </onentry>

                            <transition event="mv_response" target="../render_model">
                                <parameter name="result"/>
                                <script>
                                    self.rendered = result
                                </script>
                            </transition>
                            <transition event="mv_exception" target="../../../close"/>
                        </state>

                        <state id="render_model" initial="allocate_groups">
                            <onentry>
                                <raise event="update_status" scope="narrow" target="'progress_bar'">
                                    <parameter expr="80"/>
                                    <parameter expr="'Perceptualizing model... OK'"/>
                                </raise>
                                <raise event="clear_canvas" scope="narrow" target="'canvas'"/>
                                <script>
                                    self.groups = [i for i in self.rendered if i["type"] == "Group"]
                                    self.contains = [i for i in self.rendered if i["type"] == "contains"]
                                    self.rendered = [i for i in self.rendered if i["type"] not in ["Group", "contains"]]
                                    self.rendered.reverse()
                                </script>
                                <raise event="mv_request" scope="broad">
                                    <parameter expr="'alter_context'"/>
                                    <parameter expr="[current_rendered_model, 'formalisms/MM_render']"/>
                                </raise>
                            </onentry>

                            <state id="allocate_groups">
                                <transition cond="len(self.groups) > 0" target="../allocating_group">
                                    <raise event="define_group" scope="narrow" target="'canvas'">
                                        <parameter expr="self.groups.pop()"/>
                                    </raise>
                                </transition>
                                <transition cond="len(self.groups) == 0" target="../allocate_contains"/>
                            </state>

                            <state id="allocating_group">
                                <transition event="group_ready" target="../allocate_groups"/>
                            </state>

                            <state id="allocate_contains">
                                <transition cond="len(self.contains) > 0" target=".">
                                    <raise event="define_contains" scope="narrow" target="'canvas'">
                                        <parameter expr="self.contains.pop()"/>
                                    </raise>
                                </transition>
                                <transition cond="len(self.contains) == 0" target="../render_elements"/>
                            </state>

                            <state id="render_elements">
                                <transition cond="len(self.rendered) > 0" target=".">
                                    <raise event="draw_canvas" scope="narrow" target="'canvas'">
                                        <parameter expr="self.rendered.pop()"/>
                                    </raise>
                                </transition>

                                <transition cond="len(self.rendered) == 0" target="../../../idle"/>
                            </state>
                        </state>
                    </state>

                    <transition event="window-close" cond="ID == id(self)" target="../close">
                        <parameter name="ID"/>
                    </transition>
                </state>

                <state id="close">
                    <onentry>
                        <raise event="close_window" scope="narrow" target="'parent'"/>
                    </onentry>
                </state>
            </state>

            <state id="key_status">
                <onentry>
                    <script>
                        global control_pressed
                        control_pressed = False
                    </script>
                </onentry>

                <state id="listening">
                    <transition event="control" target=".">
                        <script>
                            global control_pressed
                            control_pressed = True
                        </script>
                    </transition>

                    <transition event="control-release" target=".">
                        <script>
                            global control_pressed
                            control_pressed = False
                        </script>
                    </transition>
                </state>
            </state>
        </parallel>
    </scxml>
</class>