Make details dialog dockable

qt/app.py

@@ -7,7 +7,7 @@
 import sys
 import os.path as op
 
-from PyQt5.QtCore import QTimer, QObject, QUrl, pyqtSignal
+from PyQt5.QtCore import QTimer, QObject, QUrl, pyqtSignal, Qt
 from PyQt5.QtGui import QDesktopServices
 from PyQt5.QtWidgets import QApplication, QFileDialog, QDialog, QMessageBox
 
@@ -284,6 +284,8 @@ class DupeGuru(QObject):
             self.resultWindow.setParent(None)
         self.resultWindow = ResultWindow(self.directories_dialog, self)
         self.details_dialog = self._get_details_dialog_class()(self.resultWindow, self)
+        self.resultWindow.addDockWidget(
+            Qt.BottomDockWidgetArea, self.details_dialog)
 
     def show_results_window(self):
         self.showResultsWindow()

qt/details_dialog.py

@@ -7,12 +7,12 @@
 # http://www.gnu.org/licenses/gpl-3.0.html
 
 from PyQt5.QtCore import Qt
-from PyQt5.QtWidgets import QMainWindow
+from PyQt5.QtWidgets import QDockWidget
 
 from .details_table import DetailsModel
 
 
-class DetailsDialog(QMainWindow):
+class DetailsDialog(QDockWidget):
     def __init__(self, parent, app, **kwargs):
         super().__init__(parent, Qt.Tool, **kwargs)
         self.app = app

qt/pe/details_dialog.py

@@ -25,8 +25,8 @@ class DetailsDialog(DetailsDialogBase):
         self.setWindowTitle(tr("Details"))
         self.resize(502, 502)
         self.setMinimumSize(QSize(250, 250))
+        self.setAllowedAreas(Qt.AllDockWidgetAreas)
         self.splitter = QSplitter(Qt.Vertical, self)
-        self.setCentralWidget(self.splitter)
         self.topFrame = QFrame()
         self.topFrame.setFrameShape(QFrame.StyledPanel)
         self.horizontalLayout = QGridLayout()
@@ -73,6 +73,8 @@ class DetailsDialog(DetailsDialogBase):
         # Late population needed here for connections to the toolbar
         self.vController.setupViewers(
             self.selectedImageViewer, self.referenceImageViewer)
+        # self.setCentralWidget(self.splitter)  # only as QMainWindow
+        self.setWidget(self.splitter)  # only as QDockWidget
 
     def _update(self):
         if self.vController is None:  # Not yet constructed!
@@ -89,15 +91,17 @@ class DetailsDialog(DetailsDialogBase):
 
     # --- Override
     def resizeEvent(self, event):
-        # HACK referenceViewer might be 1 pixel shorter in width
+        # HACK This ensures same size while shrinking.
+        # ReferenceViewer might be 1 pixel shorter in width
         # due to the toolbar in the middle keeping the same width,
         # so resizing in the GridLayout's engine leads to not enough space
         # left for the panel on the right.
-        # This ensures same size while shrinking at least:
-        self.horizontalLayout.setColumnMinimumWidth(
-            0, self.selectedImageViewer.size().width())
-        self.horizontalLayout.setColumnMinimumWidth(
-            2, self.selectedImageViewer.size().width())
+        # This doesn't work as a QDockWidget however!
+        # self.horizontalLayout.setColumnMinimumWidth(
+        #     0, self.selectedImageViewer.size().width())
+        # self.horizontalLayout.setColumnMinimumWidth(
+        #     2, self.selectedImageViewer.size().width())
+
         # This works when expanding but it's ugly:
         if self.selectedImageViewer.size().width() > self.referenceImageViewer.size().width():
             # print(f"""Before selected size: {self.selectedImageViewer.size()}\n""",