Check if atlasRegion has splits data when editing ninepatch

If the atlasRegion does not have splits data, it will be added to the atlasRegion and the .atlas
file will be updated as well.

plugin-9patch/src/main/java/games/rednblack/editor/plugin/ninepatch/MainPanelMediator.java

@@ -149,8 +149,34 @@ public class MainPanelMediator extends Mediator<MainPanel> {
 
     private void loadRegion(String name) {
         TextureAtlas atlas = plugin.getAPI().getProjectTextureAtlas();
+        validateNinePatchTextureRegion(atlas.findRegion(name));
         viewComponent.setTexture(atlas.findRegion(name));
 
         viewComponent.setListeners(plugin.getAPI().getUIStage());
     }
+
+    private void validateNinePatchTextureRegion(TextureAtlas.AtlasRegion texture) {
+        int[] s = texture.findValue("split");
+        if (s == null) {
+            // Add splits to the atlasRegion if they are missing
+            fixNinePatch(texture);
+        }
+    }
+
+    private void fixNinePatch(TextureAtlas.AtlasRegion texture) {
+        int[] splits = {0, 0, 0, 0};
+        int[] pad = {0, 0, 0, 0};
+        texture.names = new String[] {"split", "pad"};
+        texture.values = new int[][] {splits, pad};
+
+        //remove original image
+        File originalImg = new File(plugin.getAPI().getProjectPath() + "/assets/orig/images/"+texture.name+".png");
+        originalImg.delete();
+
+        //save project
+        plugin.getAPI().saveProject();
+
+        //save split data
+        addSplitsToImageInAtlas(texture.name, splits);
+    }
 }