Feature Request: Multi-Line Editing

[WesleyM77]

Feature Request

Allow editing text on multiple lines at once.

Example

My example is rather rudimentary, but there have been plenty of instances in more complex cases where I've wanted to have multi-line editing. For example in PHPStorm, a middle click and drag will put multiple cursors, as well as alt-clicking.

[CWBudde]

I'd like to have that as well, but I doubt it will be simple to implement. At the moment the code is just aware of one single caret. I'm not even sure if multiple carets are allowed by the underlying windows API or whether the drawing must be performed by custom code.

I mean the WinAPI does have a 'CreateCaret' call, which results in a caret handle. However, it's only possible to set the position for one Caret with 'SetCaretPos(X, Y: Integer): BOOL;' without being able to reference to any other than the one caret.

A comment mentioned: "CreateCaret automatically destroys the previous one, so we don't have to worry about cleaning up the old one here with DestroyCaret." which indicates for the fact that the caret must be painted by custom code, which will surely make it more complicated to ensure the stability of this code.

[WesleyM77]

Looking a little closer at the WinAPI, only one caret is allowed per queue. So, unless you folks want to switch away from the WinAPI, it's probably safe to close this ticket unfortunately. I'll leave it open in case there's a chance it could happen, but I was just looking through my issues and looked a bit further into this.