switch text annotations to status bar

src/py4D_browser/empad2_reader.py

@@ -5,6 +5,7 @@
 
 def set_empad2_sensor(self, sensor_name):
     self.empad2_calibrations = empad2.load_calibration_data(sensor=sensor_name)
+    self.statusBar().showMessage(f"{sensor_name} calibrations loaded", 5_000)
 
 
 def load_empad2_background(self):
@@ -13,6 +14,7 @@ def load_empad2_background(self):
         self.empad2_background = empad2.load_background(
             filepath=filename, calibration_data=self.empad2_calibrations
         )
+        self.statusBar().showMessage("Background data loaded", 5_000)
     else:
         QMessageBox.warning(
             self, "No calibrations loaded!", "Please select a sensor first"

src/py4D_browser/main_window.py

@@ -8,6 +8,7 @@
     QHBoxLayout,
     QSplitter,
     QActionGroup,
+    QLabel,
 )
 
 import pyqtgraph as pg
@@ -17,7 +18,7 @@
 from pathlib import Path
 import importlib
 
-from py4D_browser.utils import pg_point_roi
+from py4D_browser.utils import pg_point_roi, VLine
 from py4D_browser.scalebar import ScaleBar
 
 
@@ -82,7 +83,7 @@ def __init__(self, argv):
         self.setup_menus()
         self.setup_views()
 
-        self.resize(800, 400)
+        self.resize(1000, 800)
 
         self.show()
 
@@ -378,10 +379,7 @@ def setup_views(self):
         # Set up the diffraction space window.
         self.diffraction_space_widget = pg.ImageView()
         self.diffraction_space_widget.setImage(np.zeros((512, 512)))
-        self.diffraction_space_view_text = pg.TextItem(
-            "Slice", (200, 200, 200), None, (0, 1)
-        )
-        self.diffraction_space_widget.addItem(self.diffraction_space_view_text)
+        self.diffraction_space_view_text = QLabel("Slice")
 
         # Create virtual detector ROI selector
         self.virtual_detector_point = pg_point_roi(
@@ -404,10 +402,7 @@ def setup_views(self):
         # Set up the real space window.
         self.real_space_widget = pg.ImageView()
         self.real_space_widget.setImage(np.zeros((512, 512)))
-        self.real_space_view_text = pg.TextItem(
-            "Scan pos.", (200, 200, 200), None, (0, 1)
-        )
-        self.real_space_widget.addItem(self.real_space_view_text)
+        self.real_space_view_text = QLabel("Scan Position")
 
         # Add point selector connected to displayed diffraction pattern
         self.real_space_point_selector = pg_point_roi(self.real_space_widget.getView())
@@ -467,6 +462,11 @@ def setup_views(self):
         self.real_space_widget.getView().setMenuEnabled(False)
         self.fft_widget.getView().setMenuEnabled(False)
 
+        self.statusBar().addPermanentWidget(VLine())
+        self.statusBar().addPermanentWidget(self.diffraction_space_view_text)
+        self.statusBar().addPermanentWidget(VLine())
+        self.statusBar().addPermanentWidget(self.real_space_view_text)
+
     # Handle dragging and dropping a file on the window
     def dragEnterEvent(self, event):
         if event.mimeData().hasUrls():

src/py4D_browser/update_views.py

@@ -50,7 +50,7 @@ def update_real_space_view(self, reset=False):
 
         # update the label:
         self.diffraction_space_view_text.setText(
-            f"[{slice_x.start}:{slice_x.stop},{slice_y.start}:{slice_y.stop}]"
+            f"Diffraction Space Range: [{slice_x.start}:{slice_x.stop},{slice_y.start}:{slice_y.stop}]"
         )
 
         if detector_mode == "Integrating":
@@ -67,7 +67,9 @@ def update_real_space_view(self, reset=False):
         x0 = self.virtual_detector_roi.pos()[0] + R
         y0 = self.virtual_detector_roi.pos()[1] + R
 
-        self.diffraction_space_view_text.setText(f"[({x0:.0f},{y0:.0f}),{R:.0f}]")
+        self.diffraction_space_view_text.setText(
+            f"Detector Center: ({x0:.0f},{y0:.0f}), Radius: {R:.0f}"
+        )
 
         mask = make_detector(
             (self.datacube.Q_Nx, self.datacube.Q_Ny), "circle", ((x0, y0), R)
@@ -86,7 +88,7 @@ def update_real_space_view(self, reset=False):
             R_inner -= 1
 
         self.diffraction_space_view_text.setText(
-            f"[({x0:.0f},{y0:.0f}),({R_inner:.0f},{R_outer:.0f})]"
+            f"Detector Center: ({x0:.0f},{y0:.0f}), Radii: ({R_inner:.0f},{R_outer:.0f})"
         )
 
         mask = make_detector(
@@ -105,7 +107,7 @@ def update_real_space_view(self, reset=False):
         yc = np.clip(yc, 0, self.datacube.Q_Ny - 1)
         vimg = self.datacube.data[:, :, xc, yc]
 
-        self.diffraction_space_view_text.setText(f"[{xc},{yc}]")
+        self.diffraction_space_view_text.setText(f"Diffraction Pixel: [{xc},{yc}]")
 
     else:
         raise ValueError("Detector shape not recognized")
@@ -206,7 +208,7 @@ def update_diffraction_space_view(self, reset=False):
         xc = np.clip(xc, 0, self.datacube.R_Nx - 1)
         yc = np.clip(yc, 0, self.datacube.R_Ny - 1)
 
-        self.real_space_view_text.setText(f"[{xc},{yc}]")
+        self.real_space_view_text.setText(f"Real Space Pixel: [{xc},{yc}]")
 
         DP = self.datacube.data[xc, yc]
     elif detector_shape == "Rectangular":
@@ -218,7 +220,7 @@ def update_diffraction_space_view(self, reset=False):
 
         # update the label:
         self.real_space_view_text.setText(
-            f"[{slice_x.start}:{slice_x.stop},{slice_y.start}:{slice_y.stop}]"
+            f"Real Space Range: [{slice_x.start}:{slice_x.stop},{slice_y.start}:{slice_y.stop}]"
         )
 
         DP = np.sum(self.datacube.data[slice_x, slice_y], axis=(0, 1))

src/py4D_browser/utils.py

@@ -1,5 +1,13 @@
 import pyqtgraph as pg
 import numpy as np
+from PyQt5.QtWidgets import QFrame
+
+
+class VLine(QFrame):
+    # a simple vertical divider line
+    def __init__(self):
+        super(VLine, self).__init__()
+        self.setFrameShape(self.VLine | self.Sunken)
 
 
 def pg_point_roi(view_box):