intellij plugin development add marker to specific line

Question

I'm currently writing an Intellij-Plugin, which performs some static analyses to find mathematical formulas. (see image)

My result references to a specific line (see yellow mark). Currently I'm opening a custom JFrame to show the detected formula.

In the next version of this plugin i want to add a marker on the red marked position next to the line number. (line a breakpoint) A click on this marker should open a small/lightweight UI where i can render my formula (=JComponent) as shown in the picture below.

What intellij class should i look at?

intellij-support.jetbrains.com/hc/en-us/community/topics/… would be a better place for IntelliJ IDEA plug-in development questions. — CrazyCoder
– CrazyCoder, Commented Nov 4, 2017 at 16:04

Argb32 · Accepted Answer · 2017-11-07 14:17:06Z

2

LineMarkerProvider is what you are looking for.

Also there is a related tutorial.

edited Nov 7, 2017 at 14:17

answered Nov 7, 2017 at 12:13

Argb32

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3 Comments

osanger Over a year ago

But how do i get the right PSI Element for this line?

Argb32 Over a year ago

I assumed that you know which PSI elements you want to equip with line marks. If not I recommend to install PsiViewer plugin and view PSI structure of code areas you are interested in. It seems that you should search for PsiExpression or one of it descending classes.

osanger Over a year ago

Ok :-/ well, i thought i could just mark the line by it's its offset (=line number).

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