Module sample_form 

The Sample form: which rows every analysis tool reads, and how they are picked.

Only settings. A value names itself (“All rows (36.8M)”, “Random”, “100,000 rows”), and a kind of rows that needs telling what to type (partitions, files, a time range) carries its context on the lines under it. The keys are on the footer, like everywhere else.

Constants

FILES_SHOWN

How many source files the list under the Files row shows at once.

Functions

render

focused is whether the form has the cursor; a form waiting beside a focused tool list is drawn without the rail, so one thing looks focused.