Ticket #612: dynamically_color_playlist.patch

src/config.py

@@ -71 +71 @@
           "web_font":"Sans 12",
           "notification" : "true",
           "compact_playlist" : "false",
+          "dynamic_playlist_color": "false",
           "offline" : "false"
         },
         "dynamic_mode":{

src/widget/player_playlist.py

@@ -20 +20 @@
 #
 ###
 
-
+import colorsys, string
 import gtk, pango
 import urllib, random, threading
 
@@ -472 +472 @@
         if song.get_str("album")!="":
             text += sep+song.get_str("album",True)
         text += "</span>"
+        if config.getboolean("setting", "dynamic_playlist_color"):
+            data = self.calcSongColors(song)
+            rgb = colorsys.hls_to_rgb(data[0], 0.78 + data[1], 0.90)
+            cell.set_property("cell-background-gdk", gtk.gdk.Color(int(rgb[0] * 65535), int(rgb[1] * 65535), int(rgb[2] * 65535), 0))
+        elif cell.get_property("cell-background-set"):
+            cell.set_property("cell-background", None)
         cell.set_property("markup", text)
 
     def __cell_data_func_duration(self, column, cell, model, iter):
@@ -478 +484 @@
         song = model.get_value(iter, 0)
         text = "<span size=\"small\">%s</span>" % song.get_str("#duration",True)
         if config.get("setting","compact_playlist")=="false": text += "\n "
+        if config.getboolean("setting", "dynamic_playlist_color"):
+            data = self.calcSongColors(song)
+            rgb = colorsys.hls_to_rgb(data[0], 0.82 + data[1], 0.90)
+            cell.set_property("cell-background-gdk", gtk.gdk.Color(int(rgb[0] * 65535), int(rgb[1] * 65535), int(rgb[2] * 65535), 0))
+        elif cell.get_property("cell-background-set"):
+            cell.set_property("cell-background", None)
         cell.set_property("markup", text)
 
+    def calcSongColors(self, song):
+        """
+            return a tuple with
+            first value:  hue value of song (from 0..1)
+            second value: lightness variance of song 
+                          (not too high, usually between -0.1 and +0.1)
+        """
+        if song.get_str("artist") != "":
+            artistval = (float(string.upper(song.get_str("artist", True)).__hash__() % 1001)) / 1000
+        else:
+            artistval = 1.0
+        if song.get_str("album") != "":
+            albumval = (float(string.upper(song.get_str("album")).__hash__() % 17) / 100) - 0.08
+        else:
+            albumval = 0.0
+        return [artistval, albumval]
+            
     """""""""""""""""""""""""""
         FUNC DRAG DROP
     """""""""""""""""""""""""""

src/widget/preference.py

@@ -199 +199 @@
 
         vbox_general.pack_start(self.make_check_box(_("Enqueue as default action"),"player","click_enqueue"),False,False)
         vbox_general.pack_start(self.make_check_box(_("Compact current playlist"),"setting","compact_playlist"),False,False)
+        vbox_general.pack_start(self.make_check_box(_("Dynamically color playlist"),"setting","dynamic_playlist_color"),False,False)
         vbox_general.pack_start(self.make_check_box(_("Don't clear the playlist when play a new song"),"player","enqueue"),False,False)
         vbox_general.pack_start(self.make_check_box(_("Play a random file when the playlist is empty"),"setting","empty_random"),False,False)
 
@@ -484 +485 @@
                 config.set(sect,attr,"false")
             if sect=="setting" and attr=="compact_playlist":
                     self.win_parent.player_ui.playlist.refresh()
-                
+            if sect=="setting" and attr=="dynamic_playlist_color":
+                    self.win_parent.player_ui.playlist.refresh()
+              
             if sect=="setting" and attr=="use_trayicon":
                 if widget.get_property("active"):
                     self.win_parent.tray.tray.show_all()