Draw - objects - improve modifier keys

[user0]

XnViewMP 1.4.5 64bit
Windows11 (22H2), display resolution 3840x2160, win scaling 150%

Draw
add/improve modifier keys

Suggestion

• General
  - SHIFT shall limit moving to 8 directions (✳, 45deg steps, same as in photoshop)
  - ALT (in any tool) shall temporarily change tool to eyedropper (same as in photoshop)

• Tools
  • Line
    (during line creation)
    current behaviour: SHIFT limits drawing directions to horizontal line only
    new behaviour: SHIFT shall limit line to 8 directions (✳, 45deg steps, same as in mspaint)

Related

• suggestions
  Draw - canvas - add canvas resize functionality
  Draw - objects - add copy&paste functionality
  Draw - objects - add rotation functionality
  Draw - objects - improve modifier keys (current post)
  Draw - mouse wheel - rework functionality via modifier keys
  Draw - shapes - swap controls | resize cursor | color points

• issues
  - TODO -
  1.4.0 - draw - transparent figure's backgound visible through border
  - fixed -
  1.4.5 - draw - undo/redo buttons state (fixed in 1.4.6)
  1.4.5 - draw - text - text jumps bottom-right on cursor move (fixed in 1.4.6)
  1.4.5 - draw - eyedropper - does not pic correct color on 1-8bit image (fixed in 1.4.6)
  1.4.5 - draw - watermark - tool icon stays highlighted (fixed in 1.4.6)