rect-editor

Drag and drop rectangle editor

TODO

Drag edges/handles to resize
- If handle is dragged with Shift key down, maintains aspect ratio
Selected rect should have a form to edit eg x, y, width, height
- Disabled if multiselect?
If tap in draw mode, location is x,y - modal asks for width and height
- Maybe have drop down, allow placing more than 1
  - If more than one, choose pattern, eg stack, column, row, grid
Set cursor type (on mouse move? or CSS?)
Arrange rect(s) (bring forward, send to back etc)
- Should be undo/redoable - new action or make code more z index aware?
Arrow keys in pan should move canvas
Plus/minus/asterisk keys should zoom in/out/reset zoom (plus Control?)
Arrow keys with a selection should move rects
Show width/height tooltip while creating/resizing
Show dx/dy tooltip while dragging
New mode, zoom?
Copy/cut/paste - on paste, action add, on cut action delete
Undo/redo should probably restore selection if possible
New project / save / load
Right Click menu
Double click to edit selection?
Prefabs - basically, like copy/paste except they get saved
Layers
Groups - basically just saved selections?
Align and distribute
Icons for buttons etc