Update button visibility when new images loaded

Signed-off-by: Patrick Avery <patrick.avery@kitware.com>

Author: psavery

hexrdgui/image_mode_widget.py

@@ -8,6 +8,7 @@
 from hexrdgui.constants import PolarXAxisType, ViewType
 from hexrdgui.create_hedm_instrument import create_hedm_instrument
 from hexrdgui.hexrd_config import HexrdConfig
+from hexrdgui.image_load_manager import ImageLoadManager
 from hexrdgui.ui_loader import UiLoader
 from hexrdgui.utils import block_signals
 
@@ -146,6 +147,9 @@ def setup_connections(self):
         self.ui.stereo_project_from_polar.toggled.connect(
             HexrdConfig().set_stereo_project_from_polar)
 
+        ImageLoadManager().new_images_loaded.connect(
+            self.update_visibility_states)
+
     def enable_image_mode_widget(self, b):
         self.ui.tab_widget.setEnabled(b)
 

hexrdgui/main_window.py

@@ -90,9 +90,6 @@
 
 class MainWindow(QObject):
 
-    # Emitted when new images are loaded
-    new_images_loaded = Signal()
-
     # Emitted when a new mask is added
     new_mask_added = Signal(str)
 
@@ -273,7 +270,6 @@ def setup_connections(self):
         self.ui.action_run_fit_grains.triggered.connect(
             self.on_action_run_fit_grains_triggered)
         self.ui.action_run_wppf.triggered.connect(self.run_wppf)
-        self.new_images_loaded.connect(self.images_loaded)
         self.ui.image_tab_widget.update_needed.connect(self.update_all)
         self.ui.image_tab_widget.new_mouse_position.connect(
             self.new_mouse_position)
@@ -340,7 +336,7 @@ def setup_connections(self):
             self.on_physics_package_modified)
 
         ImageLoadManager().update_needed.connect(self.update_all)
-        ImageLoadManager().new_images_loaded.connect(self.new_images_loaded)
+        ImageLoadManager().new_images_loaded.connect(self.images_loaded)
         ImageLoadManager().images_transformed.connect(self.update_config_gui)
         ImageLoadManager().live_update_status.connect(self.set_live_update)
         ImageLoadManager().state_updated.connect(
@@ -529,7 +525,8 @@ def load_dummy_images(self):
         ImageFileManager().load_dummy_images()
         self.update_all(clear_canvases=True)
         self.ui.action_transform_detectors.setEnabled(False)
-        self.new_images_loaded.emit()
+        # Manually indicate that new images were loaded
+        ImageLoadManager().new_images_loaded.emit()
 
     def open_image_file(self):
         images_dir = HexrdConfig().images_dir