Make methods static where possible

openlp/plugins/alerts/alertsplugin.py

@@ -191,7 +191,8 @@ class AlertsPlugin(Plugin):
         self.alert_form.load_list()
         self.alert_form.exec()
 
-    def about(self):
+    @staticmethod
+    def about():
         """
         Plugin Alerts about method
 
@@ -215,7 +216,8 @@ class AlertsPlugin(Plugin):
             'title': translate('AlertsPlugin', 'Alerts', 'container title')
         }
 
-    def get_display_javascript(self):
+    @staticmethod
+    def get_display_javascript():
         """
         Add Javascript to the main display.
         """
@@ -229,7 +231,8 @@ class AlertsPlugin(Plugin):
         return CSS % (align, self.settings_tab.font_face, self.settings_tab.font_size, self.settings_tab.font_color,
                       self.settings_tab.background_color)
 
-    def get_display_html(self):
+    @staticmethod
+    def get_display_html():
         """
         Add HTML to the main display.
         """

openlp/plugins/bibles/bibleplugin.py

@@ -167,7 +167,8 @@ class BiblePlugin(Plugin):
         if self.media_item:
             self.media_item.on_import_click()
 
-    def about(self):
+    @staticmethod
+    def about():
         """
         Return the about text for the plugin manager
         """

openlp/plugins/custom/customplugin.py

@@ -62,7 +62,8 @@ class CustomPlugin(Plugin):
         self.icon_path = ':/plugins/plugin_custom.png'
         self.icon = build_icon(self.icon_path)
 
-    def about(self):
+    @staticmethod
+    def about():
         about_text = translate('CustomPlugin', '<strong>Custom Slide Plugin </strong><br />The custom slide plugin '
                                'provides the ability to set up custom text slides that can be displayed on the screen '
                                'the same way songs are. This plugin provides greater freedom over the songs plugin.')

openlp/plugins/images/imageplugin.py

@@ -53,7 +53,8 @@ class ImagePlugin(Plugin):
         self.icon_path = ':/plugins/plugin_images.png'
         self.icon = build_icon(self.icon_path)
 
-    def about(self):
+    @staticmethod
+    def about():
         about_text = translate('ImagePlugin', '<strong>Image Plugin</strong>'
                                '<br />The image plugin provides displaying of images.<br />One '
                                'of the distinguishing features of this plugin is the ability to '

openlp/plugins/media/mediaplugin.py

@@ -84,7 +84,8 @@ class MediaPlugin(Plugin):
         visible_name = self.get_string(StringContent.VisibleName)
         self.settings_tab = MediaTab(parent, self.name, visible_name['title'], self.icon_path)
 
-    def about(self):
+    @staticmethod
+    def about():
         """
         Return the about text for the plugin manager
         """

openlp/plugins/presentations/presentationplugin.py

@@ -137,7 +137,8 @@ class PresentationPlugin(Plugin):
             self.register_controllers(controller)
         return bool(self.controllers)
 
-    def about(self):
+    @staticmethod
+    def about():
         """
         Return information about this plugin.
         """

openlp/plugins/remotes/remoteplugin.py

@@ -88,7 +88,8 @@ class RemotesPlugin(Plugin):
             self.server.stop_server()
             self.server = None
 
-    def about(self):
+    @staticmethod
+    def about():
         """
         Information about this plugin
         """

openlp/plugins/songs/songsplugin.py

@@ -211,7 +211,8 @@ class SongsPlugin(Plugin):
         if self.media_item:
             self.media_item.on_export_click()
 
-    def about(self):
+    @staticmethod
+    def about():
         """
         Provides information for the plugin manager to display.
 
@@ -343,7 +344,8 @@ class SongsPlugin(Plugin):
         for song in songs:
             self.manager.delete_object(Song, song.id)
 
-    def _count_songs(self, db_file):
+    @staticmethod
+    def _count_songs(db_file):
         """
         Provide a count of the songs in the database
 

openlp/plugins/songusage/songusageplugin.py

@@ -226,8 +226,9 @@ class SongUsagePlugin(Plugin):
         """
         self.song_usage_detail_form.initialise()
         self.song_usage_detail_form.exec()
-
-    def about(self):
+    
+    @staticmethod
+    def about():
         """
         The plugin about text