Add capability to open external plot windows

src/ert/gui/main_window.py

@@ -3,7 +3,7 @@
 import datetime
 import functools
 import webbrowser
-from typing import Dict, Optional
+from typing import Dict, List, Optional
 
 from qtpy.QtCore import QSize, Qt, Signal, Slot
 from qtpy.QtGui import QCloseEvent, QCursor, QIcon
@@ -61,6 +61,16 @@
 )
 
 
+class SidebarToolButton(QToolButton):
+    right_clicked = Signal()
+
+    def mousePressEvent(self, event) -> None:
+        if event.button() == Qt.MouseButton.RightButton:
+            self.right_clicked.emit()
+        else:
+            super().mousePressEvent(event)
+
+
 class ErtMainWindow(QMainWindow):
     close_signal = Signal()
 
@@ -87,6 +97,7 @@ def __init__(
         self.central_widget.setLayout(self.central_layout)
         self.facade = LibresFacade(self.ert_config)
         self.side_frame = QFrame(self)
+        self._external_plot_windows: List[PlotWindow] = []
 
         if self.is_dark_mode():
             self.side_frame.setStyleSheet("background-color: rgb(64, 64, 64);")
@@ -122,6 +133,13 @@ def __init__(
     def is_dark_mode(self) -> bool:
         return self.palette().base().color().value() < 70
 
+    def right_clicked(self) -> None:
+        actor = self.sender()
+        if actor and actor.property("index") == "Create plot":
+            pw = PlotWindow(self.config_file, None)
+            pw.show()
+            self._external_plot_windows.append(pw)
+
     def select_central_widget(self) -> None:
         actor = self.sender()
         if actor:
@@ -231,8 +249,8 @@ def post_init(self) -> None:
                     self.help_menu.menuAction(), self.plugins_tool.get_menu()
                 )
 
-    def _add_sidebar_button(self, name: str, icon: QIcon) -> QToolButton:
-        button = QToolButton(self.side_frame)
+    def _add_sidebar_button(self, name: str, icon: QIcon) -> SidebarToolButton:
+        button = SidebarToolButton(self.side_frame)
         button.setFixedSize(85, 95)
         button.setCursor(QCursor(Qt.CursorShape.PointingHandCursor))
 
@@ -253,6 +271,7 @@ def _add_sidebar_button(self, name: str, icon: QIcon) -> QToolButton:
         self.vbox_layout.addWidget(button)
 
         button.clicked.connect(self.select_central_widget)
+        button.right_clicked.connect(self.right_clicked)
         button.setProperty("index", name)
         return button
 
@@ -305,6 +324,10 @@ def __add_tools_menu(self) -> None:
         tools_menu.addAction(self.load_results_tool.getAction())
 
     def closeEvent(self, closeEvent: Optional[QCloseEvent]) -> None:
+        for plot_window in self._external_plot_windows:
+            if plot_window:
+                plot_window.close()
+
         if closeEvent is not None:
             if self.notifier.is_simulation_running:
                 closeEvent.ignore()