basic runner setup changed

BEdit/AGENTS.md

@@ -25,7 +25,7 @@ src/bedit/
 │   ├── port_types.py       # Port type definitions and compatibility
 │   ├── serializer.py       # JSON persistence
 │   ├── libraries.py        # Library file discovery and parsing
-│   └── simulation/         # Qt-free simulation service and compiler/runtime code
+│   └── simulation/         # Qt-free composition and OpenModelica interface code
 └── gui/                    # All Qt-dependent code
     ├── app.py              # QApplication startup and palette
     ├── main_window.py      # Top-level UI orchestration
@@ -105,16 +105,19 @@ Keep the root of `src/bedit` minimal. New UI modules should go into the relevant
 - File → Reload Simulation Code (`Ctrl+F5`) reloads modules under
   `bedit.core.simulation`, replaces the shared application/controller service,
   and preserves the previous instance attributes where possible.
-- Simulation compilation lives in `core/simulation/compiler.py`; the simulation
+- Modelica composition lives in `core/simulation/composer.py`; the simulation
-  service only owns application state and delegates compilation. Ports with
+  service only owns application state and delegates composition. Ports with
   `multipleConnections` are emitted as Modelica arrays. Their size is inferred
   per component instance from graph connections and exposed while compiling as
   `$portname_N$`; array connection endpoints receive stable one-based indices in
   graph connection order.
-- Blocking simulator integration belongs in `core/simulation/runner.py` and runs
+- OpenModelica integration belongs in `core/simulation/openmodelica.py`. Its
-  on its daemon worker thread. Never perform OMPython startup or simulation work
+  persistent worker and OMC session start lazily on the first queued request.
-  directly on the Qt GUI thread; background failures must go to the application
+  Never perform OMPython work directly on the Qt GUI thread. Result and error
-  log.
+  callbacks run on the worker thread and must use a Qt signal before touching UI.
+  One lazy temporary working directory is shared by all requests in the session.
+  Explicit application shutdown closes OMC and removes that directory plus the
+  current session's OMPython log and port files; `__del__` is only a fallback.
 - The optional OpenModelica executable is persisted as
   `simulation/openModelicaPath`. The GUI passes it into `Simulation`; core must
   not read `QSettings`. An empty path uses OMPython/PATH discovery, while an

BEdit/src/bedit/core/simulation/__init__.py

@@ -1,3 +1,4 @@
 from bedit.core.simulation.service import Simulation
+from bedit.core.simulation.openmodelica import OpenModelicaInterface
 
-__all__ = ["Simulation"]
+__all__ = ["OpenModelicaInterface", "Simulation"]

BEdit/src/bedit/core/simulation/composer.py

@@ -14,8 +14,8 @@ _BEVALUE_PATTERN = re.compile(r"\$([A-Za-z_][A-Za-z0-9_]*)\$")
 
 
 @dataclass(frozen=True)
-class CompilationResult:
+class CompositionResult:
-    """The intermediate data and generated source produced by compilation."""
+    """The intermediate data and generated source produced by composition."""
 
     graph: dict[str, Any]
     objects_by_id: dict[str, Any]
@@ -23,16 +23,16 @@ class CompilationResult:
     model_name: str
 
 
-def compile_graph(graph: dict[str, Any]) -> CompilationResult:
+def compose_graph(graph: dict[str, Any]) -> CompositionResult:
-    """Clean, index, and emit a serialized component tree."""
+    """Clean, index, and compose a serialized component tree."""
 
     cleaned_graph = cleanup_graph(deepcopy(graph))
     objects_by_id = build_id_list(cleaned_graph)
-    return CompilationResult(
+    return CompositionResult(
         graph=cleaned_graph,
         objects_by_id=objects_by_id,
         modelica=emit_model(cleaned_graph, objects_by_id),
-        model_name=model_name_for(cleaned_graph)
+        model_name=model_name_for(cleaned_graph),
     )
 
 
@@ -85,7 +85,7 @@ def emit_model(
 ) -> str:
     """Emit a component and its nested definitions as Modelica source."""
 
-    del id_list  # Kept in the public API for compiler extensions and inspection.
+    del id_list  # Kept in the public API for composer extensions and inspection.
     indentation = "\t" * indent
     body_indent = "\t" * (indent + 1)
     model_name = model_name_for(graph)
@@ -283,7 +283,7 @@ def _port_count_macros(
 
 
 def expand_bevalues(text: str, values: dict[str, str]) -> str:
-    """Replace BEdit ``$name$`` macros and reject unresolved compiler values."""
+    """Replace BEdit ``$name$`` macros and reject unresolved composer values."""
 
     def replace(match: re.Match[str]) -> str:
         name = match.group(1)

BEdit/src/bedit/core/simulation/openmodelica.py

@@ -0,0 +1,247 @@
+import json
+import os
+import shutil
+import tempfile
+from collections.abc import Callable
+from dataclasses import dataclass
+from pathlib import Path
+from queue import Queue
+from threading import Lock, Thread, current_thread
+from typing import Any
+
+from bedit.core.application_log import get_logger
+
+
+log = get_logger(__name__)
+ResultCallback = Callable[[Any], None]
+ErrorCallback = Callable[[Exception], None]
+
+
+@dataclass(frozen=True)
+class _Request:
+    expression: str
+    parsed: bool
+    callback: ResultCallback | None
+    error_callback: ErrorCallback | None
+
+
+class OpenModelicaInterface:
+    """Asynchronous, persistent interface to one OpenModelica session.
+
+    The worker and OMC session are created lazily for the first request. Callback
+    functions execute on the worker thread and must not manipulate Qt widgets.
+    """
+
+    def __init__(self, executable_path: str = "") -> None:
+        self._executable_path = executable_path
+        self._lifecycle_lock = Lock()
+        self._queue: Queue[_Request | None] | None = None
+        self._worker: Thread | None = None
+        self._temp_dir: Path | None = None
+
+    @property
+    def executable_path(self) -> str:
+        return self._executable_path
+
+    def configure(self, executable_path: str) -> None:
+        """Use a new executable path for subsequent requests."""
+
+        if executable_path == self._executable_path:
+            return
+        self.shutdown(wait=True)
+        self._executable_path = executable_path
+
+    def get_version(
+        self,
+        callback: ResultCallback | None = None,
+        error_callback: ErrorCallback | None = None,
+    ) -> None:
+        """Request the OpenModelica version without blocking the caller."""
+        self.send_expression("getVersion()", callback, error_callback)
+
+    def load_model(
+        self,
+        model: str,
+        callback: ResultCallback | None = None,
+        error_callback: ErrorCallback | None = None,
+    ) -> None:
+        """Load a composed model into OpenModelica"""
+        self.send_expression(f"loadString({json.dumps(model)})", callback, error_callback)
+
+    def compile_model(
+        self,
+        model_name: str,
+        callback: ResultCallback | None = None,
+        error_callback: ErrorCallback | None = None,
+    ) -> None:
+        """Compile a loaded model in OpenModelica"""
+        self.send_expression(f"buildModel({model_name})", callback, error_callback)
+        
+    def exec_system(
+        self,
+        cmd: str,
+        callback: ResultCallback | None = None,
+        error_callback: ErrorCallback | None = None,
+    ) -> None:
+        """Execute system command from OpenModelica"""
+        self.send_expression(f"system(\"{cmd}\", \"system_out.txt\")", callback, error_callback)
+
+    def send_expression(
+        self,
+        expression: str,
+        callback: ResultCallback | None = None,
+        error_callback: ErrorCallback | None = None,
+        *,
+        parsed: bool = True,
+    ) -> None:
+        """Queue an OMC expression for ordered execution on the worker thread."""
+
+        request = _Request(expression, parsed, callback, error_callback)
+        self._ensure_worker().put(request)
+
+    def shutdown(self, *, wait: bool = True) -> None:
+        """Ask the worker to close its OMC session after queued requests."""
+
+        with self._lifecycle_lock:
+            worker = self._worker
+            queue = self._queue
+            self._worker = None
+            self._queue = None
+        if queue is not None:
+            queue.put(None)
+        if wait and worker is not None and worker is not current_thread():
+            worker.join()
+        if worker is None:
+            self._cleanup_temp_dir()
+
+    def __del__(self) -> None:
+        """Best-effort fallback; normal application shutdown is explicit."""
+
+        try:
+            self.shutdown(wait=False)
+        except Exception:
+            pass
+
+    def _ensure_worker(self) -> Queue[_Request | None]:
+        with self._lifecycle_lock:
+            if self._worker is not None and self._worker.is_alive():
+                return self._queue
+            temp_dir = self._ensure_temp_dir_locked()
+            queue: Queue[_Request | None] = Queue()
+            worker = Thread(
+                target=self._worker_main,
+                args=(queue, self._executable_path, temp_dir),
+                name="bedit-openmodelica",
+                daemon=True,
+            )
+            self._queue = queue
+            self._worker = worker
+            worker.start()
+            return queue
+
+    def _worker_main(
+        self,
+        queue: Queue[_Request | None],
+        executable_path: str,
+        temp_dir: Path,
+    ) -> None:
+        omc = None
+        try:
+            while (request := queue.get()) is not None:
+                try:
+                    if omc is None:
+                        omc = _create_session(executable_path)
+                        changed_directory = omc.sendExpression(
+                            f"cd({json.dumps(str(temp_dir))})"
+                        )
+                        if not changed_directory:
+                            raise RuntimeError(
+                                f"OpenModelica could not use {str(temp_dir)!r}"
+                            )
+                    result = omc.sendExpression(
+                        request.expression, parsed=request.parsed
+                    )
+                except Exception as error:
+                    if request.error_callback is None:
+                        log.exception(
+                            "OpenModelica request failed: %s", request.expression
+                        )
+                    else:
+                        _deliver_callback(request.error_callback, error)
+                else:
+                    if request.callback is not None:
+                        _deliver_callback(request.callback, result)
+        finally:
+            transport_files = _ompython_transport_files(omc)
+            if omc is not None:
+                try:
+                    omc.sendExpression("quit()")
+                except Exception:
+                    log.debug("Could not close OpenModelica session", exc_info=True)
+            for path in transport_files:
+                try:
+                    path.unlink(missing_ok=True)
+                except OSError:
+                    log.debug("Could not remove OMPython file %s", path, exc_info=True)
+            self._cleanup_temp_dir(temp_dir)
+
+    def _ensure_temp_dir_locked(self) -> Path:
+        if self._temp_dir is None:
+            self._temp_dir = Path(tempfile.mkdtemp(prefix="bedit-openmodelica-"))
+        return self._temp_dir
+
+    def _cleanup_temp_dir(self, expected: Path | None = None) -> None:
+        with self._lifecycle_lock:
+            if expected is not None and self._temp_dir != expected:
+                temp_dir = expected
+            else:
+                temp_dir = self._temp_dir
+                self._temp_dir = None
+        if temp_dir is not None:
+            shutil.rmtree(temp_dir, ignore_errors=True)
+
+
+def _deliver_callback(callback: Callable[[Any], None], value: Any) -> None:
+    try:
+        callback(value)
+    except Exception:
+        log.exception("OpenModelica callback failed")
+
+
+def _create_session(executable_path: str):
+    from OMPython import OMCSessionZMQ
+
+    return OMCSessionZMQ(omhome=_openmodelica_home(executable_path))
+
+
+def _ompython_transport_files(omc) -> set[Path]:
+    """Return only the log and port files owned by this OMPython session."""
+
+    if omc is None:
+        return set()
+    process = getattr(omc, "omc_process", None)
+    if process is None:
+        return set()
+    files: set[Path] = set()
+    temp_dir = getattr(process, "_temp_dir", None)
+    file_base = getattr(process, "_omc_filebase", None)
+    if temp_dir is not None and file_base:
+        files.add(Path(temp_dir) / f"{file_base}.log")
+    try:
+        port_file = process._get_portfile_path()
+    except Exception:
+        port_file = None
+    if port_file is not None:
+        files.add(Path(port_file))
+    return files
+
+
+def _openmodelica_home(executable_path: str) -> str | None:
+    """Convert an optional omc executable path to the home expected by OMPython."""
+
+    if not executable_path.strip():
+        return None
+    path = Path(os.path.expandvars(executable_path)).expanduser()
+    if path.name.lower() in {"omc", "omc.exe"}:
+        return str(path.parent.parent)
+    return str(path)

BEdit/src/bedit/core/simulation/runner.py

@@ -1,162 +0,0 @@
-import json
-import os
-from collections.abc import Callable
-from pathlib import Path
-from threading import Lock, Thread
-
-from bedit.core.application_log import get_logger
-
-
-log = get_logger(__name__)
-_worker_lock = Lock()
-_worker: Thread | None = None
-
-
-def run_validation_async(
-    openmodelica_path: str = "",
-    model: str = "",
-    model_name: str = "",
-    task: Callable[[], None] | None = None,
-) -> None:
-    """Start one validation task in a background thread and return immediately."""
-
-    global _worker
-    with _worker_lock:
-        if _worker is not None and _worker.is_alive():
-            raise RuntimeError("An OpenModelica task is already running")
-        _worker = Thread(
-            target=_run_safely,
-            args=(
-                task
-                or (lambda: _run_validation(openmodelica_path, model, model_name)),
-            ),
-            name="bedit-simulation",
-            daemon=True,
-        )
-        _worker.start()
-
-
-def run_simulation_async(
-    openmodelica_path: str = "",
-    model: str = "",
-    model_name: str = "",
-    task: Callable[[], None] | None = None,
-) -> None:
-    """Start one validation-and-simulation task and return immediately."""
-
-    global _worker
-    with _worker_lock:
-        if _worker is not None and _worker.is_alive():
-            raise RuntimeError("An OpenModelica task is already running")
-        _worker = Thread(
-            target=_run_safely,
-            args=(
-                task
-                or (lambda: _run_openmodelica(openmodelica_path, model, model_name)),
-            ),
-            name="bedit-simulation",
-            daemon=True,
-        )
-        _worker.start()
-
-
-def simulation_is_running() -> bool:
-    """Return whether the background simulation worker is active."""
-
-    with _worker_lock:
-        return _worker is not None and _worker.is_alive()
-
-
-def _run_safely(task: Callable[[], None]) -> None:
-    global _worker
-    try:
-        task()
-    except Exception:
-        log.exception("Simulation run failed")
-    finally:
-        with _worker_lock:
-            _worker = None
-
-
-def _run_validation(
-    openmodelica_path: str = "", model: str = "", model_name: str = ""
-) -> None:
-    """Create the OpenModelica session and perform a validation"""
-
-    from OMPython import OMCSessionZMQ
-
-    omhome = _openmodelica_home(openmodelica_path)
-    omc = OMCSessionZMQ(omhome=omhome)
-    _validate_model(omc, model, model_name)
-
-
-def _run_openmodelica(
-    openmodelica_path: str = "", model: str = "", model_name: str = ""
-) -> None:
-    """Validate and run the current simulation stub in one OMC session."""
-
-    from OMPython import OMCSessionZMQ
-
-    omhome = _openmodelica_home(openmodelica_path)
-    omc = OMCSessionZMQ(omhome=omhome)
-    _validate_model(omc, model, model_name)
-    
-    log.info("OpenModelica Version: %s", omc.sendExpression("getVersion()"))
-
-    loaded = omc.sendExpression(f"loadString({json.dumps(model)})")
-    if loaded is not True:
-        details = _get_error_string(omc)
-        raise RuntimeError(f"OpenModelica could not load the model: {details}")
-    
-    result = omc.sendExpression(f"checkModel({model_name})")
-    details = _get_error_string(omc)
-    if not isinstance(result, str) or "completed successfully" not in result:
-        message = details or result or "Unknown OpenModelica validation error"
-        raise RuntimeError(f"OpenModelica model validation failed: {message}")
-
-def _validate_model(omc, model: str, model_name: str) -> None:
-    if not model:
-        raise ValueError("There is no compiled Modelica source to validate")
-    if not model_name:
-        raise ValueError("The compiled model has no Modelica name")
-
-    loaded = omc.sendExpression(f"loadString({json.dumps(model)})")
-    if loaded is not True:
-        details = _get_error_string(omc)
-        raise RuntimeError(f"OpenModelica could not load the model: {details}")
-
-    result = omc.sendExpression(f"checkModel({model_name})")
-    details = _get_error_string(omc)
-    if not isinstance(result, str) or "completed successfully" not in result:
-        message = details or result or "Unknown OpenModelica validation error"
-        raise RuntimeError(f"OpenModelica model validation failed: {message}")
-    log.info("%s", result)
-    if details:
-        log.warning("OpenModelica validation messages: %s", details)
-
-
-def _get_error_string(omc) -> str:
-    """Read OMC's deliberately unparsed error response as plain text."""
-
-    raw = omc.sendExpression("getErrorString()", parsed=False)
-    if not isinstance(raw, str):
-        return str(raw or "")
-    raw = raw.strip()
-    if not raw:
-        return ""
-    try:
-        decoded = json.loads(raw)
-    except (TypeError, json.JSONDecodeError):
-        return raw
-    return decoded if isinstance(decoded, str) else str(decoded)
-
-
-def _openmodelica_home(openmodelica_path: str) -> str | None:
-    """Convert an optional omc executable path to the home expected by OMPython."""
-
-    if not openmodelica_path.strip():
-        return None
-    path = Path(os.path.expandvars(openmodelica_path)).expanduser()
-    if path.name.lower() in {"omc", "omc.exe"}:
-        return str(path.parent.parent)
-    return str(path)

BEdit/src/bedit/core/simulation/service.py

@@ -1,50 +1,102 @@
 from typing import Any
 
 from bedit.core.application_log import get_logger
-from bedit.core.simulation.compiler import compile_graph
+from bedit.core.simulation.composer import compose_graph
-from bedit.core.simulation.runner import run_simulation_async, run_validation_async
+from bedit.core.simulation.openmodelica import (
+    ErrorCallback,
+    OpenModelicaInterface,
+    ResultCallback,
+)
 
 
 log = get_logger(__name__)
 
 
 class Simulation:
-    """Application-owned simulation state and compiler facade."""
+    """Application-owned composition state and OpenModelica interface."""
 
     def __init__(self, *, openmodelica_path: str = "") -> None:
         self.state: dict[str, Any] = {}
-        self.last_compilation_input: dict[str, Any] | None = None
+        self.last_composition_input: dict[str, Any] | None = None
-        self.last_compilation_output: str | None = None
+        self.last_composition_output: str | None = None
         self.id_list: dict[str, Any] = {}
-        self.openmodelica_path = openmodelica_path
+        self.model_name: str | None = None
+        self._openmodelica_path = openmodelica_path
+        self.openmodelica = OpenModelicaInterface(openmodelica_path)
+        self.model_path : str | None = None
 
-    def compile(self, graph: dict[str, Any]) -> None:
+    @property
-        """Compile a serialized component tree and retain the result."""
+    def openmodelica_path(self) -> str:
+        return self._openmodelica_path
 
-        self._prepare_compilation(graph)
+    @openmodelica_path.setter
-        run_validation_async(
+    def openmodelica_path(self, value: str) -> None:
-            self.openmodelica_path,
+        self._openmodelica_path = value
-            self.last_compilation_output,
+        self.openmodelica.configure(value)
-            self.model_name,
+
+    def compose(self, graph: dict[str, Any]) -> None:
+        """Compose and retain the active graph's Modelica representation."""
+
+        self.model_path = None
+
+        # Create openmodelica model
+        result = compose_graph(graph)
+        self.last_composition_input = result.graph
+        self.id_list = result.objects_by_id
+        self.last_composition_output = result.modelica
+        self.model_name = result.model_name
+        log.info("Composed OpenModelica model:\n%s", result.modelica)
+
+        # Compile openmodelica model
+        self.openmodelica.load_model(
+            self.last_composition_output,
+            lambda result: log.info("Loading OK: %s", result),
+            lambda error: log.info("Loading ERROR: %s", repr(error)),
         )
 
-    def _prepare_compilation(self, graph: dict[str, Any]) -> None:
+        def _model_compiled(result):
-        """Generate and retain Modelica without starting a background operation."""
+            log.info("Compiling OK: %s", result)
+            self.model_path = result[0]
 
-        result = compile_graph(graph)
+        self.openmodelica.compile_model(
-        self.last_compilation_input = result.graph
+            self.model_name,
-        self.id_list = result.objects_by_id
+            _model_compiled,
-        self.last_compilation_output = result.modelica
+            lambda error: log.info("Compiling ERROR: %s", repr(error)),
-        self.model_name = result.model_name
+        )
 
     def run_simulation(self, graph: dict[str, Any]) -> None:
-        """Start the simulation without blocking the calling UI thread."""
+        """Reserved for a future simulation request."""
 
-        # Always regenerate before running, then validate and simulate as one
+        if self.model_path is None:
-        # background operation so the two phases cannot compete for the worker.
+            self.compose(graph)
-        self._prepare_compilation(graph)
+
-        run_simulation_async(
+        self.openmodelica.get_version(lambda val: log.info(val))
-            self.openmodelica_path,
+        log.info(f"Running model binary {self.model_path}")
-            self.last_compilation_output,
+
-            self.model_name,
+        self.openmodelica.exec_system(
+            f'./{self.model_name} {self.build_simulation_arguments()}',
+            lambda result: log.info("Running OK: %s", result),
+            lambda error: log.info("Running ERROR: %s", repr(error)),
         )
+
+    def shutdown(self, *, wait: bool = True) -> None:
+        """Close OpenModelica and clean its generated working directory."""
+        self.openmodelica.shutdown(wait=wait)
+        self.model_path = None
+
+    def build_simulation_arguments(self) -> str:
+        opts = self.last_composition_input['implementation']['graph']['simulation']
+
+
+        args = "-port=40696 -outputFormat=csv -logFormat=xmltcp "
+
+        args += f"-startTime={opts['startTime']} -stopTime={opts['stopTime']} "
+
+        step_size = opts['intervalTime']
+        if opts['intervalMode'] == 'numberOfIntervals':
+            step_size = (opts['stopTime']-opts['startTime'])/opts['numberOfIntervals']
+        args += f"-stepSize={step_size}"
+
+        log.info("Running model with: %s", args)
+
+        return args

BEdit/src/bedit/gui/controllers/document.py

@@ -421,11 +421,11 @@ class DocumentController(QObject):
         if old != new:
             self.undo_stack.push(EditGraphParametersCommand(self, old, new))
 
-    def compile_active_graph(self) -> None:
+    def compose_active_graph(self) -> None:
         component = self.active_component
         if component is None or component.implementation_kind != "graph":
-            raise ValueError("Open a graph component before compiling")
+            raise ValueError("Open a graph component before composing")
-        self.simulation.compile(component.to_dict())
+        self.simulation.compose(component.to_dict())
 
     def run_simulation(self) -> None:
         component = self.active_component

BEdit/src/bedit/gui/generated/ui_main_window.py

@@ -41,11 +41,11 @@ class Ui_MainWindow(object):
         icon1 = QIcon()
         icon1.addFile(u":/icons/icons/configure.png", QSize(), QIcon.Mode.Normal, QIcon.State.Off)
         self.actionGraphParameters.setIcon(icon1)
-        self.actionCompile = QAction(MainWindow)
+        self.actionCompose = QAction(MainWindow)
-        self.actionCompile.setObjectName(u"actionCompile")
+        self.actionCompose.setObjectName(u"actionCompose")
         icon2 = QIcon()
         icon2.addFile(u":/icons/icons/run-build.png", QSize(), QIcon.Mode.Normal, QIcon.State.Off)
-        self.actionCompile.setIcon(icon2)
+        self.actionCompose.setIcon(icon2)
         self.actionRunSimulation = QAction(MainWindow)
         self.actionRunSimulation.setObjectName(u"actionRunSimulation")
         icon3 = QIcon()
@@ -435,7 +435,7 @@ class Ui_MainWindow(object):
         self.menuHelp.addAction(self.actionAboutQt)
         self.menuSimulation.addAction(self.actionSimulationSettings)
         self.menuSimulation.addAction(self.actionGraphParameters)
-        self.menuSimulation.addAction(self.actionCompile)
+        self.menuSimulation.addAction(self.actionCompose)
         self.menuSimulation.addAction(self.actionRunSimulation)
         self.fileToolbar.addAction(self.actionNew)
         self.fileToolbar.addAction(self.actionOpen)
@@ -451,7 +451,7 @@ class Ui_MainWindow(object):
         self.cameraToolbar.addAction(self.actionCenterView)
         self.simulationToolbar.addAction(self.actionSimulationSettings)
         self.simulationToolbar.addAction(self.actionGraphParameters)
-        self.simulationToolbar.addAction(self.actionCompile)
+        self.simulationToolbar.addAction(self.actionCompose)
         self.simulationToolbar.addAction(self.actionRunSimulation)
 
         self.retranslateUi(MainWindow)
@@ -472,12 +472,12 @@ class Ui_MainWindow(object):
 #if QT_CONFIG(statustip)
         self.actionGraphParameters.setStatusTip(QCoreApplication.translate("MainWindow", u"Edit parameters throughout the active graph", None))
 #endif // QT_CONFIG(statustip)
-        self.actionCompile.setText(QCoreApplication.translate("MainWindow", u"Compile", None))
+        self.actionCompose.setText(QCoreApplication.translate("MainWindow", u"Compose", None))
 #if QT_CONFIG(statustip)
-        self.actionCompile.setStatusTip(QCoreApplication.translate("MainWindow", u"Compile the active graph for simulation", None))
+        self.actionCompose.setStatusTip(QCoreApplication.translate("MainWindow", u"Compose the active graph as an OpenModelica model", None))
 #endif // QT_CONFIG(statustip)
 #if QT_CONFIG(shortcut)
-        self.actionCompile.setShortcut(QCoreApplication.translate("MainWindow", u"F5", None))
+        self.actionCompose.setShortcut(QCoreApplication.translate("MainWindow", u"F5", None))
 #endif // QT_CONFIG(shortcut)
         self.actionRunSimulation.setText(QCoreApplication.translate("MainWindow", u"Run", None))
 #if QT_CONFIG(statustip)

BEdit/src/bedit/gui/main_window.py

@@ -166,7 +166,7 @@ class MainWindow(QMainWindow):
             self.show_simulation_settings
         )
         self.ui.actionGraphParameters.triggered.connect(self.show_graph_parameters)
-        self.ui.actionCompile.triggered.connect(self.compile_active_graph)
+        self.ui.actionCompose.triggered.connect(self.compose_active_graph)
         self.ui.actionRunSimulation.triggered.connect(self.run_simulation)
         self.document_controller.undo_stack.canUndoChanged.connect(self.ui.actionUndo.setEnabled)
         self.document_controller.undo_stack.canRedoChanged.connect(self.ui.actionRedo.setEnabled)
@@ -239,12 +239,12 @@ class MainWindow(QMainWindow):
                 QMessageBox.warning(self, "Cannot change graph parameters", str(error))
 
     @Slot()
-    def compile_active_graph(self) -> None:
+    def compose_active_graph(self) -> None:
         try:
-            self.document_controller.compile_active_graph()
+            self.document_controller.compose_active_graph()
         except ValueError as error:
-            self.log.error("Compile failed: %s", error)
+            self.log.error("Composition failed: %s", error)
-            QMessageBox.warning(self, "Cannot compile", str(error))
+            QMessageBox.warning(self, "Cannot compose", str(error))
 
     @Slot()
     def run_simulation(self) -> None:
@@ -281,7 +281,7 @@ class MainWindow(QMainWindow):
             self._set_graph_controls_visible(False)
             self.ui.actionSimulationSettings.setEnabled(False)
             self.ui.actionGraphParameters.setEnabled(False)
-            self.ui.actionCompile.setEnabled(False)
+            self.ui.actionCompose.setEnabled(False)
             self.ui.actionRunSimulation.setEnabled(False)
             self._update_edit_actions()
             return
@@ -292,7 +292,7 @@ class MainWindow(QMainWindow):
         is_graph = component.implementation_kind == "graph"
         self.ui.actionSimulationSettings.setEnabled(is_graph)
         self.ui.actionGraphParameters.setEnabled(is_graph)
-        self.ui.actionCompile.setEnabled(is_graph)
+        self.ui.actionCompose.setEnabled(is_graph)
         self.ui.actionRunSimulation.setEnabled(is_graph)
         self.ui.workspaceModeLabel.setText("Graph" if is_graph else "Text")
         self.ui.workspaceStack.setCurrentWidget(
@@ -760,6 +760,7 @@ class MainWindow(QMainWindow):
             event.ignore()
             return
         self.settings.setValue("window/geometry", self.saveGeometry())
+        self.simulation.shutdown()
         self.log.info("BEdit closed")
         self.application_logger.removeHandler(self.log_handler)
         event.accept()

BEdit/src/bedit/gui/simulation_reload.py

@@ -20,6 +20,8 @@ def _saved_instance_state(instance) -> dict:
 def reload_simulation(current):
     """Reload the simulation package and return a fresh state-preserving instance."""
     saved_state = _saved_instance_state(current)
+    saved_state.pop("openmodelica", None)
+    current.shutdown(wait=True)
     importlib.invalidate_caches()
     package = importlib.import_module(SIMULATION_PACKAGE)
     discovered: list[ModuleType] = []
@@ -30,4 +32,5 @@ def reload_simulation(current):
     package = importlib.reload(package)
     replacement = package.Simulation()
     vars(replacement).update(saved_state)
+    replacement.openmodelica.configure(replacement.openmodelica_path)
     return replacement

BEdit/ui/main_window.ui

@@ -551,7 +551,7 @@
     </property>
     <addaction name="actionSimulationSettings"/>
     <addaction name="actionGraphParameters"/>
-    <addaction name="actionCompile"/>
+    <addaction name="actionCompose"/>
     <addaction name="actionRunSimulation"/>
    </widget>
    <addaction name="menuFile"/>
@@ -644,7 +644,7 @@
    </attribute>
    <addaction name="actionSimulationSettings"/>
    <addaction name="actionGraphParameters"/>
-   <addaction name="actionCompile"/>
+   <addaction name="actionCompose"/>
    <addaction name="actionRunSimulation"/>
   </widget>
   <action name="actionSimulationSettings">
@@ -671,16 +671,16 @@
     <string>Edit parameters throughout the active graph</string>
    </property>
   </action>
-  <action name="actionCompile">
+  <action name="actionCompose">
    <property name="icon">
     <iconset resource="../resources/resources.qrc">
      <normaloff>:/icons/icons/run-build.png</normaloff>:/icons/icons/run-build.png</iconset>
    </property>
    <property name="text">
-    <string>Compile</string>
+    <string>Compose</string>
    </property>
    <property name="statusTip">
-    <string>Compile the active graph for simulation</string>
+    <string>Compose the active graph as an OpenModelica model</string>
    </property>
    <property name="shortcut">
     <string>F5</string>

BEdit/untitled.bedit.json

@@ -653,7 +653,7 @@
             "startTime": 0.0,
             "stopTime": 10.0,
             "intervalMode": "numberOfIntervals",
-            "numberOfIntervals": 5000,
+            "numberOfIntervals": 50,
             "intervalTime": 0.002
           }
         }