107 lines
2.7 KiB
Markdown
107 lines
2.7 KiB
Markdown
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multimeter
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==========
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Control multiple ANSI progress bars on the terminal.
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example
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=======
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````javascript
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var multimeter = require('multimeter');
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var multi = multimeter(process);
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multi.drop(function (bar) {
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var iv = setInterval(function () {
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var p = bar.percent();
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bar.percent(p + 1);
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if (p >= 100) clearInterval(iv);
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}, 25);
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});
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````
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methods
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=======
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var multimeter = require('multimeter');
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var multi = multimeter(stream, ...)
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-----------------------------------
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Create a new multimeter handle on the supplied stream/process objects, which
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will be passed directly to [charm](https://github.com/substack/node-charm).
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If you pass in a charm object that will be used instead of creating a new one.
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var bar = multi(x, y, params)
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-----------------------------
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Create a new progress bar at `(x,y)` with `params` which default to:
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* width : 10
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* before : '['
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* after : '] '
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* solid : { background : 'blue', foreground : 'white', text : '|' }
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* empty : { background : null, foreground : null, text : ' ' }
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If `y` is negative or `'-0'` it will be treated as a relative coordinate.
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var bar = multi.rel(x, y, params)
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---------------------------------
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Create a new progress bar at an absolute `x` and relative `y` coordinate with
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respect to the present `multi.offset`.
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multi.drop(params, cb)
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----------------------
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Create a new progress bar at the present cursor location. The `bar` object will
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be passed to `cb(bar)` once the cursor location has been determined.
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multi.on(...), multi.removeListener(...), multi.destroy(...), multi.write(...)
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------------------------------------------------------------------------------
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Call event emitter functions on the underlying `charm` object.
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multi.offset
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------------
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This getter/setter controls the positioning for relative progress bars.
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Increment this value whenever you write a newline to the stream to prevent the
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pending progress bars from drifting down from their original positions.
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bar.percent(p, msg=p + ' %')
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----------------------------
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Update the progress bar to `p` percent, a value between 0 and 100, inclusive.
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The text to the right of the progress bar will be set to `msg`.
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bar.ratio(n, d, msg=n + ' / ' + d)
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----------------------------------
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Update the progress bar with a ratio, `n/d`.
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The text to the right of the progress bar will be set to `msg`.
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attributes
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==========
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multi.charm
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-----------
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The [charm](https://github.com/substack/node-charm) object used internally to
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draw the progress bars.
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install
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=======
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With [npm](http://npmjs.org) do:
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npm install multimeter
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