From 86ce65515eed0a0dff48d02062b598a8d2275f23 Mon Sep 17 00:00:00 2001
From: m smith <matthew.smith3@crick.ac.uk>
Date: Wed, 11 Sep 2019 15:06:32 +0100
Subject: [PATCH] Added a method to clear the currently selected snake from the
 current frame only.

---
 src/main/java/snakeprogram/SnakeFrame.java |  7 +++++++
 src/main/java/snakeprogram/SnakeModel.java | 15 ++++++++++++++-
 2 files changed, 21 insertions(+), 1 deletion(-)

diff --git a/src/main/java/snakeprogram/SnakeFrame.java b/src/main/java/snakeprogram/SnakeFrame.java
index 622a3fc..767e7e7 100644
--- a/src/main/java/snakeprogram/SnakeFrame.java
+++ b/src/main/java/snakeprogram/SnakeFrame.java
@@ -243,6 +243,13 @@ private JMenuBar createMenuBar(){
         transform_snake.setAccelerator(KeyStroke.getKeyStroke('m'));
         snakes.add(transform_snake);
 
+        JMenuItem clear_current = new JMenuItem("Clear from Current Frame.");
+        clear_current.addActionListener(evt->{
+            snake_model.clearCurrentSnake();
+        });
+        clear_current.setAccelerator(KeyStroke.getKeyStroke('c'));
+        snakes.add(clear_current);
+
         JMenuItem sculpt_snake = new JMenuItem("Sculpt Selected");
         sculpt_snake.setActionCommand(SnakeActions.sculpt.name());
         sculpt_snake.addActionListener(snake_listener);
diff --git a/src/main/java/snakeprogram/SnakeModel.java b/src/main/java/snakeprogram/SnakeModel.java
index 2847fa4..3bbe329 100644
--- a/src/main/java/snakeprogram/SnakeModel.java
+++ b/src/main/java/snakeprogram/SnakeModel.java
@@ -934,7 +934,20 @@ public boolean checkForCurrentSnake(){
         }    
     
     }
-    
+
+    /**
+     * Clears the current snake from the current frame, without deleting the whole snake.
+     */
+    public void clearCurrentSnake(){
+        if(CurrentSnake != null){
+            Integer f = getCurrentFrame();
+            if(CurrentSnake.exists(f)){
+                CurrentSnake.Coordinates.remove(f);
+            }
+            purgeSnakes();
+            updateImagePanel();
+        }
+    }
     /**
        *    Ceases a deform iterations
        */