Eclipse Editor Driving Me Crazy - Restore Editor Pane To Full Width

Question

Okay, all I want to do is to have the editor pane (with the code in it) to go back to filling up the normal amount of space. When I try to drag it back, I get some weird split pane configuration thing going on, and it only takes up a part of the space in the middle.

1. I have already tried Reset Perspective.
2. I have already tried Toggle Split Editor, both horizontally and vertically.
3. If I try to drag the width of the editor to fill up the rest of the space, it only goes like 80% of the way.

This is eclipse mars. I don't know how it got like this in the first place.

EDIT: Also, every time I try to open a new file, it opens up a new pane in one of the sidebars.

EDIT: Here's a video of me trying to fiddle around with it: https://youtu.be/Jl6XNWW96Lc

Answer 1

EUREKA, I FIXED IT!

1. I switched to another workspace that wasn't broken as hell.
2. I did File -> Switch Workspace -> Other...
3. I expanded "Copy Settings"
4. I checked "Workbench Layout"
5. I selected the broken ass workspace and hit "OK"
6. Voila! The broken workspace adapted the layout of the working one. Transplant successful.