PICARD-1490: Fix local cover art loading on Windows

picard/coverart/__init__.py

@@ -174,7 +174,7 @@ class CoverArt:
         # local files
         if coverartimage.url and coverartimage.url.scheme() == 'file':
             try:
-                path = coverartimage.url.path()
+                path = coverartimage.url.toLocalFile()
                 with open(path, 'rb') as file:
                     self._set_metadata(coverartimage, file.read())
             except IOError as ioexcept:

picard/coverart/image.py

@@ -431,7 +431,7 @@ class LocalFileCoverArtImage(CoverArtImage):
 
     def __init__(self, filepath, types=None, comment='',
                  support_types=False, support_multi_types=False):
-        url = 'file://' + filepath
+        url = QUrl.fromLocalFile(filepath).toString()
         super().__init__(url=url, types=types, comment=comment)
         self.support_types = support_types
         self.support_multi_types = support_multi_types

test/test_coverart_image.py

@@ -100,3 +100,8 @@ class LocalFileCoverArtImageTest(PicardTestCase):
         image = LocalFileCoverArtImage(path, support_multi_types=True)
         self.assertFalse(image.support_types)
         self.assertTrue(image.support_multi_types)
+
+    def test_windows_path(self):
+        path = 'C:\\Music\\somefile.mp3'
+        image = LocalFileCoverArtImage(path)
+        self.assertEqual(image.url.toLocalFile(), 'C:/Music/somefile.mp3')