App UI - preview - add preview modes

[user0]

XnViewMP 1.7.2 64bit
Windows11 (23H2), display resolution 3840x2160, win scaling 150%

Preview
current two-window preview is not convenient for comparing images and takes a lot of space

Suggestion

preview_add_preview_types.png

• move all buttons to the left side
  like in Batch convert

• add update controls
  like in Batch convert
  - auto update
  - manual update (can be hidden when auto update is active)

• add preview modes
  like G'MIC preview types
  • 1 image
    - Full
  • 1 image with A/B slider like in Compare Tool
    - Forward Horizontal
    - Forward Vertical
    - Backward Horizontal
    - Backward Vertical
  • 2 images
    - Duplicate Left

• add difference mode (≏)

Example

• G'MIC
  other_apps_G'MIC.jpg

• Beyond compare (diff mode)
  other_apps_beyond_compare_diff.jpg

Related

• suggestions
  App UI - preview - add preview modes (current post)
  Image Compare - add 'find difference' feature
  - done -
  Export - UI - rearrange controls (1.8.0)
  Batch convert - preview - improve file controls (1.8.0)

[meteorquake]

+ Related post (which I don't think is covered in the above?) for a single frame cycling original and export on a timer or manually - viewtopic.php?f=60&t=47680