Allow nodes to be dragged on to empty cells

yishn / tikzcd-editor

A simple visual editor for creating commutative diagrams.

https://tikzcd.yichuanshen.de/

MIT License

1.9k stars 101 forks source link

Allow nodes to be dragged on to empty cells #59

Open F1nnM opened 4 years ago

F1nnM commented 4 years ago

Nodes can be merged now. Merging nodes A and B only works, if at least one node doesn't contain text (is empty). Merging can be done by dragging:

an empty node onto another empty node
an empty node onto a text node
a text node onto an empty node

Dragging the base of an arrow to the target of it, turns the arrow into a loop.

Everything seems to be working fine, but I'm not 100% sure I caught all bugs, so tell me if I introduced any bugs.

F1nnM commented 4 years ago

I think I fixed everything

F1nnM commented 4 years ago

Hi, I really don't want to pressure you, but I also really would like this PR to count towards hacktoberfest, so if you could accept it before the end of the month, that would be great! 😄