Add Delete Geometry button to Geometry Window (#3020)

Author: MikeSullivan7

docs/release_notes/next/feature-3016-Delete-Geometry

@@ -0,0 +1 @@
+#3016: Add Delete Geometry button to Geometry Window

mantidimaging/gui/windows/geometry/presenter.py

@@ -23,6 +23,19 @@
 
 
 class GeometryWindowPresenter(BasePresenter):
+
+    def handle_delete_geometry(self) -> None:
+        stack = self._get_current_stack_with_assert()
+        if stack.geometry is None:
+            self.view.show_info_dialog("No geometry to delete.")
+            return
+        stack.geometry = None
+        if hasattr(stack, 'geometry'):
+            stack.metadata.pop('angles', None)
+        self.view.set_widget_stack_page(1)
+        self.view.clear_plot()
+        self.view.show_info_dialog("Geometry deleted. You can now create a new geometry.")
+
     view: GeometryWindowView
 
     def __init__(self, view: GeometryWindowView, main_window: MainWindowView):

mantidimaging/gui/windows/geometry/view.py

@@ -164,6 +164,9 @@ def _build_data_display_group(self) -> QWidget:
         data_display_group_layout.addRow(QLabel("Source Pos:"), self.sourcePosBox)
         data_display_group_layout.addRow(QLabel("Detector Pos:"), self.detectorPosBox)
 
+        self.deleteGeometryButton = QPushButton("Delete Geometry")
+        data_display_group_layout.addRow(self.deleteGeometryButton)
+
         return data_display_group
 
     def _build_geometry_conversion_group(self) -> QWidget:
@@ -264,6 +267,8 @@ def _init_connect_signals(self) -> None:
         self.createGeometryButton.clicked.connect(self.presenter.handle_create_new_geometry)
         self.convertGeometryButton.clicked.connect(self.presenter.handle_convert_geometry)
 
+        self.deleteGeometryButton.clicked.connect(self.presenter.handle_delete_geometry)
+
     def set_widget_stack_page(self, index: int) -> None:
         self.geometryPagesWidget.setCurrentIndex(index)
 

mantidimaging/gui/windows/recon/view.py

@@ -4,7 +4,7 @@
 from logging import getLogger
 from typing import TYPE_CHECKING
 
-import numpy
+import numpy as np
 from PyQt5.QtWidgets import (QAbstractItemView, QComboBox, QDoubleSpinBox, QInputDialog, QPushButton, QSpinBox,
                              QVBoxLayout, QWidget, QTextEdit, QLabel, QApplication, QStyle, QCheckBox)
 from PyQt5.QtCore import QSignalBlocker
@@ -32,7 +32,6 @@
 
 
 class ReconstructWindowView(BaseMainWindowView):
-    # COR and Tilt tab
 
     resultsTab: QWidget
 
@@ -315,7 +314,7 @@ def handle_auto_update_preview_selection(self) -> None:
         if self.previewAutoUpdate.isChecked():
             self.presenter.notify(PresN.RECONSTRUCT_PREVIEW_SLICE)
 
-    def update_recon_preview(self, image_data: numpy.ndarray, reset_roi: bool = False) -> None:
+    def update_recon_preview(self, image_data: np.ndarray, reset_roi: bool = False) -> None:
         """
         Updates the reconstruction preview image with new data.
         """