fuse-angular/src/assets/angular-material-examples/form-field-theming/form-field-theming-example.ts

import { Component } from '@angular/core';
import { FormBuilder, FormGroup, Validators } from '@angular/forms';

/** @title Form field theming */
@Component({
    selector   : 'form-field-theming-example',
    templateUrl: 'form-field-theming-example.html',
    styleUrls  : ['form-field-theming-example.css']
})
export class FormFieldThemingExample
{
    options: FormGroup;

    constructor(fb: FormBuilder)
    {
        this.options = fb.group({
            'color'   : 'primary',
            'fontSize': [16, Validators.min(10)]
        });
    }

    getFontSize()
    {
        return Math.max(10, this.options.value.fontSize);
    }
}