Seek Time Adjustment

Added mapping and action to change the seek time using fn + </>.
Parameter added to the sampler settings called SEEK_TIME_JUMP. This parameter sets how much the seek time is adjusted by each time fn + </> is pressed. SEEK_TIME_JUMP also stores the custom seek time.

actions.py

@@ -112,11 +112,33 @@ class Actions(object):
         elif self.data.player_mode == 'next':
             self.video_driver.next_player.toggle_show()
 
+    def increase_seek_time(self):
+        seek_time = self.data.settings['sampler']['SEEK_TIME_JUMP']['seconds']
+        jump = self.data.settings['sampler']['SEEK_TIME_JUMP']['value']
+        if seek_time < 60:
+            seek_time += jump    
+        else:
+            seek_time = 0.5
+        self.data.settings['sampler']['SEEK_TIME_JUMP']['seconds'] = seek_time
+        self.message_handler.set_message('INFO', 'The Seek Time is now ' + str(seek_time) + 's')
+
+
+    def decrease_seek_time(self):
+        seek_time = self.data.settings['sampler']['SEEK_TIME_JUMP']['seconds']
+        jump = self.data.settings['sampler']['SEEK_TIME_JUMP']['value']
+        if seek_time > 0.5:
+            seek_time -= jump    
+        else:
+            seek_time = 0.5
+        self.data.settings['sampler']['SEEK_TIME_JUMP']['seconds'] = seek_time
+        self.message_handler.set_message('INFO', 'The Seek Time is now ' + str(seek_time) + 's')
+        
+
     def seek_forward_on_player(self):    
-        self.video_driver.current_player.seek(30)
+        self.video_driver.current_player.seek(self.data.settings['sampler']['SEEK_TIME_JUMP']['seconds'])
 
     def seek_back_on_player(self):
-        self.video_driver.current_player.seek(-30)
+        self.video_driver.current_player.seek(-(self.data.settings['sampler']['SEEK_TIME_JUMP']['seconds']))
 
     def toggle_function(self):
         self.data.function_on = not self.data.function_on

json_objects/keypad_action_mapping.json

@@ -1,13 +1,13 @@
 {
 	"a": {
 		"NAV_BROWSER": ["move_browser_selection_up"],
-		"PLAYER": ["seek_back_on_player"],
+		"PLAYER": ["seek_back_on_player", "decrease_seek_time"],
 		"NAV_SETTINGS": ["move_settings_selection_up"],
         "LENGTH_SET": ["return_to_default_control_mode"]
 	},
 	"b": {
 		"NAV_BROWSER": ["move_browser_selection_down"],
-		"PLAYER": ["seek_forward_on_player"],
+		"PLAYER": ["seek_forward_on_player", "increase_seek_time"],
 		"NAV_SETTINGS": ["move_settings_selection_down"],
         "LENGTH_SET": ["return_to_default_control_mode"]
 	},

json_objects/settings_default.json

@@ -198,7 +198,19 @@
                 "off"
             ],
             "value": "off"
-        }
+        },
+        "SEEK_TIME_JUMP": {
+            "action": null,
+            "options": [
+                0.5,
+                1,
+                5,
+                10,
+                30
+            ],
+            "value": 5,
+            "seconds": 30
+        }    
     },
     "video": {
         "BACKGROUND_COLOUR": {