PICARD-187: Support for manually removing cover art

PICARD-187: Support for manually removing cover art

finishing PICARD-187

Author: ShubhamBhut

picard/formats/apev2.py

@@ -263,6 +263,11 @@ def _remove_deleted_tags(self, metadata, tags):
                 if real_name in tags:
                     del tags[real_name]
 
+        if self.metadata.images._deleted:
+            for tag in tags:
+                if tag.lower().startswith('cover art'):
+                    del tags[tag]
+
     def _get_tag_name(self, name):
         if name in self.__casemap:
             return self.__casemap[name]

picard/formats/asf.py

@@ -304,6 +304,8 @@ def _remove_deleted_tags(self, metadata, tags):
             real_name = self._get_tag_name(tag)
             if real_name and real_name in tags:
                 del tags[real_name]
+        if self.metadata.images._deleted:
+            del tags['WM/Picture']
 
     @classmethod
     def supports_tag(cls, name):

picard/formats/id3.py

@@ -659,6 +659,11 @@ def _remove_deleted_tags(self, metadata, tags):
             except KeyError:
                 pass
 
+        if self.metadata.images._deleted:
+            for key, frame in tags.items():
+                if frame.FrameID == 'APIC':
+                    del tags[key]
+
     @classmethod
     def supports_tag(cls, name):
         return ((name and not name.startswith('~') and name not in UNSUPPORTED_TAGS)

picard/formats/mp4.py

@@ -340,6 +340,9 @@ def _remove_deleted_tags(self, metadata, tags):
                 if tag not in {'totaltracks', 'totaldiscs'}:
                     del tags[real_name]
 
+        if self.metadata.images._deleted:
+            del tags['covr']
+
     @classmethod
     def supports_tag(cls, name):
         return (name

picard/formats/vorbis.py

@@ -321,7 +321,7 @@ def _save(self, filename, metadata):
                     base64.b64encode(picture.write()).decode('ascii'))
 
         file.tags.update(tags)
-
+        self._clear_cover_art(file)
         self._remove_deleted_tags(metadata, file.tags)
 
         kwargs = {}
@@ -358,6 +358,15 @@ def _remove_deleted_tags(self, metadata, tags):
                         del tags[tag]
                     del tags[real_name]
 
+    def _clear_cover_art(self, file):
+        if self.metadata.images._deleted:
+            if self._File == mutagen.flac.FLAC:
+                file.clear_pictures()
+            else:
+                for tag in file:
+                    if tag.lower().startswith('metadata_block_picture'):
+                        del file.tags[tag]
+
     def _get_tag_name(self, name):
         if name == '~rating':
             config = get_config()

picard/ui/coverartbox.py

@@ -348,6 +348,11 @@ def open_release_page(self):
         lookup.album_lookup(self.release)
 
 
+def image_delete(obj, image):
+    obj.metadata.images.strip_selected_image(image)
+    obj.metadata_images_changed.emit()
+
+
 def set_image_replace(obj, coverartimage):
     obj.metadata.images.strip_front_images()
     obj.metadata.images.append(coverartimage)
@@ -545,6 +550,71 @@ def load_remote_image(self, url, data):
             log.warning("Can't load image: %s", e)
             return
 
+    def delete_cover_art(self):
+        if not self.item or not self.item.metadata.images:
+            if not self.item.orig_metadata.images:
+                return
+
+        cover_art_list = [image.source or _("Unnamed Cover Art") for image in self.item.metadata.images]
+
+        selected_item, ok_pressed = QtWidgets.QInputDialog.getItem(self, _("Delete Cover Art"),
+                                                                    _("Select the cover art image to delete:"),
+                                                                    cover_art_list, 0, False)
+        if ok_pressed:
+            selected_image_index = cover_art_list.index(selected_item)
+            selected_image = self.item.metadata.images[selected_image_index]
+            try:
+                self.delete_cover_art_for_item(self.item, selected_image)
+            except CoverArtImageError as e:
+                log.error("Can't delete image: %s", e)
+                return
+
+    def delete_cover_art_for_item(self, item, selected_image):
+        metadata = item.metadata
+        if not metadata or not metadata.images:
+            return
+
+        debug_info = "Deleting %r from %r"
+
+        if isinstance(item, Album):
+            item.enable_update_metadata_images(False)
+            for track in item.tracks:
+                track.enable_update_metadata_images(False)
+                image_delete(track, selected_image)
+            for file in item.iterfiles():
+                image_delete(file, selected_image)
+                file.update(signal=False)
+            for track in item.tracks:
+                track.enable_update_metadata_images(True)
+            item.enable_update_metadata_images(True)
+            item.update(update_tracks=False)
+        elif isinstance(item, FileListItem):
+            parents = set()
+            item.enable_update_metadata_images(False)
+            image_delete(item, selected_image)
+            for file in item.iterfiles():
+                for parent in iter_file_parents(file):
+                    parent.enable_update_metadata_images(False)
+                    parents.add(parent)
+                image_delete(file, selected_image)
+                file.update(signal=False)
+            for parent in parents:
+                image_delete(parent, selected_image)
+                parent.enable_update_metadata_images(True)
+                if isinstance(parent, Album):
+                    parent.update(update_tracks=False)
+                else:
+                    parent.update()
+            item.enable_update_metadata_images(True)
+            item.update()
+        elif isinstance(item, File):
+            image_delete(item, selected_image)
+            item.update()
+        else:
+            debug_info = "Dropping %r to %r is not handled"
+
+        log.debug(debug_info, selected_image, item)
+
     def _try_load_remote_image(self, url, data):
         coverartimage = CoverArtImage(
             url=url.toString(),
@@ -634,6 +704,13 @@ def contextMenuEvent(self, event):
             show_more_details_action.triggered.connect(self.show_cover_art_info)
             menu.addAction(show_more_details_action)
 
+        delete_cover_art_action = QtGui.QAction(_("Delete cover art"), self.parent)
+        if self.item and self.item.can_show_coverart and self.item.metadata.images:
+            delete_cover_art_action.triggered.connect(self.delete_cover_art)
+        else:
+            delete_cover_art_action.setEnabled(False)
+        menu.addAction(delete_cover_art_action)
+
         if self.orig_cover_art.isVisible():
             name = _("Keep original cover art")
             use_orig_value_action = QtGui.QAction(name, self.parent)

picard/util/imagelist.py

@@ -33,6 +33,7 @@ def __init__(self, iterable=()):
         self._images = list(iterable)
         self._hash_dict = {}
         self._changed = True
+        self._deleted = False
 
     def __len__(self):
         return len(self._images)
@@ -50,6 +51,7 @@ def __delitem__(self, index):
 
     def insert(self, index, value):
         self._changed = True
+        self._deleted = False
         return self._images.insert(index, value)
 
     def __repr__(self):
@@ -95,6 +97,11 @@ def strip_front_images(self):
         self._images = [image for image in self._images if not image.is_front_image()]
         self._changed = True
 
+    def strip_selected_image(self, image):
+        if image in self._images:
+            self._images.remove(image)
+            self._deleted = not self._images
+
     def hash_dict(self):
         if self._changed:
             self._hash_dict = {img.datahash.hash(): img for img in self._images}