Dolphin had some code to change the grid spacing when previews were toggled, in an attempt to optimize the view for 3:2 landscape photos. This was problematic for many reasons:
- Conceptually, it was a bad idea to optimize the view for one specific use case. Previews are useful for more than just landscape photos, and this optimization would be inapplicable to any other set of files.
- Folders entirely full of images commonly have some portrait-orientation images included too, so even if the goal were appropriate, it was a bad idea to optimize for only having landscape images.
- For small sizes and medium icons (< 96px), the preview grid size was virtually identical to the non-preview grid size, so it had essentially no effect, and only made the icons wiggle strangely when previews were toggled.
- For large large sizes (>= 96px), all it did was unnecessarily increase the horizontal grid spacing, actually reducing usability for browsing through folders of images.
Therefore, let's just remove this code.
BUG: 393306
FIXED-IN: 18.04.1