fix artist thumbs clearing

CHANGELOG.txt

@@ -6,6 +6,7 @@ v4.2.1
  - Added loading of user artist thumbnails from "artist-pictures" folder
  - Changed artist filter playlists to link to parent
  - Tweaked artist list scroll bar behavior
+ - Fixed album image cache resets clearing artist thumbnails
  - Fixed background skin not changing on singles
  - Fixed crash when using gallery and 1.25x scaling with background skin on
 

tauon.py

@@ -800,6 +800,8 @@ def __init__(self):
 
         self.transcode_inplace = False
 
+        self.bg_showcase_only = False
+
 
 
 prefs = Prefs()
@@ -6505,8 +6507,12 @@ def clear_img_cache(delete_disk=True):
     if prefs.cache_gallery and delete_disk:
         direc = os.path.join(cache_directory)
         if os.path.isdir(direc):
-            shutil.rmtree(direc)
-        os.makedirs(direc)
+            for item in os.listdir(direc):
+                if "lfm" not in item:
+                    os.remove(os.path.join(direc, item))
+                    #shutil.rmtree(direc)
+        else:
+            os.makedirs(direc)
 
     gui.update += 1
 
@@ -7514,6 +7520,14 @@ def display(self):
                     self.flush()
                     return
 
+
+            if prefs.bg_showcase_only:
+                tb = SDL_Rect(0, 0, window_size[0], gui.panelY)
+                bb = SDL_Rect(0, window_size[1] - gui.panelBY, window_size[0], gui.panelBY)
+                self.hole_punches.append(tb)
+                self.hole_punches.append(bb)
+
+
             SDL_SetRenderTarget(renderer, gui.main_texture_overlay_temp)
             SDL_SetTextureAlphaMod(self.a_texture, fade)
             SDL_RenderCopy(renderer, self.a_texture, None, self.a_rect)