A fast, jQuery-free text sizing component that quickly fits single and multi-line text to the width (and optionally height) of its container.
npm install textfittextFit - Hassle-Free Text Fitting
==================================
A fast, dependency-free text sizing component that quickly fits single and multi-line text to the width and/or height of its container.
Capabilities
============
textFit is:
* Fast, using binary search to quickly fit text to its container in log n time, making it far faster than most solutions.
* Most fits are <1ms. See the implementation details.
* Dependency-free.
* Small. 4.1KB minified and 1.5KB gzipped.
* Supports both horizontal and vertical centering, including vertical centering with Flexbox for maximum accuracy.
* Supports any font face, padding, and multiline text.
Browser Support
===============
textFit supports IE9+, Firefox, Chrome, Opera, and most mobile browsers. If you find an incompatibility,
please file an issue.
If you require IE <= 8 support, please use the jQuery version.
Functionality is identical between v1.0 and v2.0, the only change was the removal of the jQuery dependency.
Changelog
=========
v2.3.1
------
* Fix #20 - properly iterate over HTMLCollection objects.
v2.3.0
------
* Added alignVertWithFlexbox. This does better vertical alignment and fixes #14.
v2.2.0
------
* Throw errors instead of just printing to console when missing height/width.
- Removed options.suppressErrors. Wrap in try/catch instead if you really need this.
* Slight refactor.
* Added automatic build on prepublish.
v2.1.1
------
* Fixed a bug with alignVert when reprocessing.
* Added full UMD shim and published to npm.
v2.1
----
* Reworked alignVert.
* reProcess is now true by default. Set to false if you want to fire-and-forget on potentially
processed nodes. This was originally false by default because it was being used in an infinite scrolling list.
v2.0
----
* Removed jQuery dependency.
Usage
=====
``html`
Fit me, I am some text
`javascript`
// textFit accepts arrays
textFit(document.getElementsByClassName('box'));
// or single DOM elements
textFit(document.getElementsByClassName('box')[0]);
// Use jQuery selectors if you like.
textFit($('#box')[0])
The text will scale until it reaches the horizontal or vertical bounds of the box.
Explicit width and height styles are required in order to fit the text.
Advanced Usage
==============
Multiline Strings
-----------------
If your text has multiple lines, textFit() will automatically detect that and disable white-space: no-wrap!
No changes are necessary.
`html`
This text
Has multiple lines
Fit me!
`javascript`
textFit(document.getElementsByClassName('box'))
If, for some reason, the automatic detection is not working out for you, use the following to explicitly turn on
multiLine fitting:
`javascript`
textFit(document.getElementsByClassName('box'), {multiLine: true})
Horizontal/Vertical Centering
-----------------------------
`html`
This text
Has multiple lines
And wants to be centered horizontally and vertically
Fit me!
`javascript`
textFit(document.getElementsByClassName('box'), {alignHoriz: true, alignVert: true})
Minimum and Maximum Sizes
-------------------------
Sometimes you want to make sure that your text remains sanely sizes if it is very short or very long. textFit
has you covered:
`html`
Short Text
`javascript`
textFit(document.getElementsByClassName('box'), {minFontSize:10, maxFontSize: 50})
Implementation Details
----------------------
textFit determines reasonable minimum and maximum bounds for your text. The defaults are listed below.
To ensure accurate results with various font-faces, line-heights, and letter-spacings, textFit resizes the text
until it fits the box as accurately as possible. Unlike many similar plugins, textFit uses binary search to
find the correct fit, which speeds the process significantly. textFit is fast enough to use in production
websites.
textFit() is a synchronous function. Because of this, resizes should be invisible as the render thread does not
have a chance to do a layout until completion. Normal processing times should be < 1ms and should not significantly
block renders.
Default Settings
----------------
From the source, for reference:
`javascript``
settings = {
alignVert: false, // if true, textFit will align vertically using css tables
alignHoriz: false, // if true, textFit will set text-align: center
multiLine: false, // if true, textFit will not set white-space: no-wrap
detectMultiLine: true, // disable to turn off automatic multi-line sensing
minFontSize: 6,
maxFontSize: 80,
reProcess: true, // if true, textFit will re-process already-fit nodes. Set to 'false' for better performance
widthOnly: false, // if true, textFit will fit text to element width, regardless of text height
alignVertWithFlexbox: false, // if true, textFit will use flexbox for vertical alignment
};
License
=======
MIT