nivz78/fitfont

Custom font module for Fitbit OS

FitFont for Fitbit

This library allows you to easily display text with custom fonts.

With the Fitbit CLI

Installation

Install the library with npm i fitfont

The installer will ask you if it can copy the library gui files in your resources folder:
Press Y and the fitfont.gui file will be created automatically.
Press N if you prefer to copy the file manually afterwards (default choice is Yes)

You still need to modify the resources/widgets.gui file to add the link to fitfont.gui:

<svg>
    <defs>
        <link rel="stylesheet" href="styles.css" />
        <link rel="import" href="/mnt/sysassets/widgets_common.gui" />
        <!-- import FitFont ui file -->
        <link rel="import" href="fitfont.gui" />
    </defs>
</svg>

Assets generation

Download your favourite ttf font and generate the library needed files with:

  npx fitfont-generate [path/to_the_font_file]  [font_size]  [list_of_characters_to_generate]

e.g.

  npx fitfont-generate /path/to/my_cool_font.ttf 200 0123456789:.

The generated folder (named [font_name]_[font_size]) will be automatically copied in your resources folder.

Repeat this for every font/size you need.

Without the Fitbit CLI (shame on you)

Library integration

Copy the fitfont.js file in your app folder.

Copy the fitfont.gui file in your resources folder.

Modify the resources/widgets.gui file to add the link to fitfont.gui:

<svg>
    <defs>
        <link rel="stylesheet" href="styles.css" />
        <link rel="import" href="/mnt/sysassets/widgets_common.gui" />
        <!-- import FitFont ui file -->
        <link rel="import" href="fitfont.gui" />
    </defs>
</svg>

Assets generation

Install the python dependencies:

  pip install Pillow

Download your favourite font file and call the python generator.py script of this repo.

  python generate.py [path/to_the_font_file]  [font_size]  [list_of_characters_to_generate]

e.g.

  python generate.py /path/to/my_cool_font.ttf 200 0123456789:.

Copy the generated folder (named [font_name]_[font_size]) in your project's resources folder.

Repeat this for every font/size you need.

Usage

Use a fitfont symbol in your index.gui file:

    <use href="#fitfont" id="myLabel">
        <use href="#fitfont-char"/>
        <use href="#fitfont-char"/>
        <use href="#fitfont-char"/>
        <use href="#fitfont-char"/>
        <use href="#fitfont-char"/>
        <use href="#fitfont-char"/>
        <!-- add as many characters as needed -->
    </use>

Import and use the library in your app/index.js:

    import { FitFont } from 'fitfont'
    // or if you are not using the CLI : import { FitFont } from './fitfont.js'
    
    const myLabel = new FitFont({ 
        id:'myLabel',               // id of your symbol in the index.gui, you can also give an element object e.g. id: document.getElementById('foo')
        font:'Market_Saturday_200'  // name of the generated font folder

        // Optional
        halign: 'start',            // horizontal alignment : start / middle / end
        valign: 'baseline',         // vertical alignment   : baseline / top / middle / bottom
        letterspacing: 0            // letterspacing...
    })
    
    myLabel.text = '12:55'          // only the characters generated with the python script will be displayed

    // It is also possible to change the halign/valign/letterspacing dynamically
    myLabel.halign = 'middle'
    myLabel.valign = 'top'
    myLabel.letterspacing = -3

Launch your app and enjoy.

Demo

A demo is available here