import { Component, ViewChild } from '@angular/core';
import {BlockUIModule, ChartModule } from 'primeng/primeng';

@Component({
  selector: 'my-app',
  templateUrl: 'app/app.template.html'
})
export class AppComponent {
@ViewChild('chart') chart: UIChart
   // Doughnut
   data: any;
   readonly: boolean = true;
   maxValue: number = 0;
   title: string = "";
   value: number = 0;
   steps: number = 5;
   defaultColor: string = "#36A2EB";
   range1: number = 0;
   rangeColor1: string = "#5fba7d";
   range2: number = 0;
   rangeColor2: string = "#FFCE56";
   range3: number = 0;
   rangeColor3: string = "#ff9800";
   range4: number = 0;
   rangeColor4: string = "#FF6384";
   
   constructor() {
          this.data = {
         labels: [],
         datasets: [
            {
               data: [0, 0],
               backgroundColor: [
                  this.defaultColor,
                  "#ccc"
               ],
               hoverBackgroundColor: [
                  this.defaultColor,
                  "#ccc"
               ]
            }]
      };
      // Fake data here...
      setTimeout(()=>{this.Init(300, 800, 300, 400, 500, 800), 5000});
   }
   
   public Init(value: number, maxValue: number, range1: number, range2: number, range3: number, range4: number){

    
    this.value = value;
    this.maxValue = maxValue;
    this.range1 = range1; 
    this.range2 = range2; 
    this.range3 = range3; 
    this.range4 = range4; 
    this.data.datasets[0]['data'][0] = this.value;
    this.data.datasets[0]['data'][1] = this.maxValue - this.value;
    
    this.update(true);
   }
   
   get MaxValue(): number {
      return this.maxValue;
   }

   set MaxValue(v: number) {
     this.maxValue = v;
     this.data.datasets[0]['data'][1] = this.maxValue - this.value;
     this.update(false);
   }
   
    get Value(): number {
      return this.value;
   }

   set Value(v: number) {
    //debugger;
     this.value = v;
     this.data.datasets[0]['data'][0] = this.value;
     this.update(false);
   }
   
   update(init: boolean) {
     //debugger;
     if(init){
       this.chart.options.animation.duration = 2000;
     }
     else{
       this.chart.options.animation.duration = 1;
     }
    if(this.value < this.range1){
      this.data.datasets[0]['backgroundColor'][0] = this.rangeColor1;
      this.data.datasets[0]['hoverBackgroundColor'][0] = this.rangeColor1;
    }
    else if(this.value < this.range2){
      this.data.datasets[0]['backgroundColor'][0] = this.rangeColor2;
      this.data.datasets[0]['hoverBackgroundColor'][0] = this.rangeColor2;
    }
    else if(this.value < this.range3){
      this.data.datasets[0]['backgroundColor'][0] = this.rangeColor3;
      this.data.datasets[0]['hoverBackgroundColor'][0] = this.rangeColor3;
    }
    else if(this.value < this.range4){
      this.data.datasets[0]['backgroundColor'][0] = this.rangeColor4;
      this.data.datasets[0]['hoverBackgroundColor'][0] = this.rangeColor4;
    }
    else{
      this.data.datasets[0]['backgroundColor'][0] = this.defaultColor;
      this.data.datasets[0]['hoverBackgroundColor'][0] = this.defaultColor;
    }
    // just trying refresh full variable
    this.data.datasets = this.data.datasets.slice();
    this.chart.refresh();
  }

  test(): void {
              debugger;
              var test = this.chart;
              var width = this.chart.width,
              var height = this.chart.height;
              var fontSize = (height / 180).toFixed(2);
              this.chart.ctx.font = fontSize + "em Verdana";
              this.chart.ctx.textBaseline = "middle";

              var text = "value 1234156",
              var textX = Math.round((width - this.chart.ctx.measureText(text).width) / 2);
              var textY = (height + this.chart.controller.legend.height) / 2;

              this.chart.ctx.fillText(text, textX, textY);
  }
  public colors:Array<any> = [
    {
      backgroundColor: ['rgba(255,55,0, 0.8)', 'lightgreen'],
      borderColor: ['rgba(255,55,0, 0.8)', 'Transparent'],
      pointBackgroundColor: 'rgba(148,159,255,1)',
      pointBorderColor: '#fff',
      pointHoverBackgroundColor: '#fff',
      pointHoverBorderColor: 'rgba(148,159,177,0.8)'
    }
  ];
    private options = {
      tooltipEvents: [],
      cutoutPercentage: 90,
            title: {
                display: true,
                text: this.title,
                fontSize: 16
            },
            legend: {
                position: 'bottom'
            },
            animation: {
            duration: 2000,
            onComplete: (animation) => {
              //debugger;
              var chartInstance = this.chart.chart.chart;
              if(this.data.datasets[0]['data'][0] < this.range1){
                this.data.datasets[0]['backgroundColor'][0] = this.rangeColor1;
                this.data.datasets[0]['hoverBackgroundColor'][0] = this.rangeColor1;
              }
              else if(this.data.datasets[0]['data'][0] < this.range2){
                this.data.datasets[0]['backgroundColor'][0] = this.rangeColor2;
                this.data.datasets[0]['hoverBackgroundColor'][0] = this.rangeColor2;
              }
              else if(this.data.datasets[0]['data'][0] < this.range3){
                this.data.datasets[0]['backgroundColor'][0] = this.rangeColor3;
                this.data.datasets[0]['hoverBackgroundColor'][0] = this.rangeColor3;
              }
              else if(this.data.datasets[0]['data'][0] < this.range4){
                this.data.datasets[0]['backgroundColor'][0] = this.rangeColor4;
                this.data.datasets[0]['hoverBackgroundColor'][0] = this.rangeColor4;
              }
              else{
                this.data.datasets[0]['backgroundColor'][0] = this.defaultColor;
                this.data.datasets[0]['hoverBackgroundColor'][0] = this.defaultColor;
              }
              var width = chartInstance.width,
              var height = chartInstance.height;
              var fontSize = (height / 180).toFixed(2);
              chartInstance.ctx.font = fontSize + "em Verdana";
              chartInstance.ctx.textBaseline = "middle";
              
              chartInstance.ctx.fillStyle = this.data.datasets[0]['backgroundColor'][0];
              var text = "";
              if(this.Value != 0 || this.MaxValue != 0){
                  text = this.Value + " %";
              }
              
              var textX = Math.round((width - chartInstance.ctx.measureText(text).width) / 2);
              var textY = (height + chartInstance.controller.legend.height) / 2;

              chartInstance.ctx.fillText(text, textX, textY);
            }
        },
        
        hover:{
          intersect: true,
          animationDuration : 1,
          onHover: function(x){
            
          }
        }
  };
   
   
}
import { NgModule }      from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { FormsModule } from '@angular/forms';

import { AppComponent }   from './app.component';

// Import PrimeNG modules
import { ButtonModule, SliderModule, ChartModule } from 'primeng';
import {BlockUIModule} from 'primeng';

@NgModule({
  imports:      [ FormsModule, BrowserModule, ButtonModule, ChartModule, BlockUIModule, SliderModule ],
  declarations: [ AppComponent ],
  bootstrap:    [ AppComponent ]
})

export class AppModule { }


/*
Copyright 2016 Google Inc. All Rights Reserved.
Use of this source code is governed by an MIT-style license that
can be found in the LICENSE file at http://angular.io/license
*/
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';

import { AppModule } from './app.module';

const platform = platformBrowserDynamic();
platform.bootstrapModule(AppModule);
body {
  padding: 2em;
  font-family: Arial, Helvetica, sans-serif;
}
<!DOCTYPE html>
<html>
  <head>
    <title>Angular QuickStart</title>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="stylesheet" href="styles.css">
    
    <!-- PrimeNG style dependencies -->
    <link rel="stylesheet" href="https://unpkg.com/primeng@1.0.0/resources/themes/omega/theme.css" />
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css" />
    <link rel="stylesheet" href="https://unpkg.com/primeng@1.0.0/resources/primeng.min.css" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.1.6/Chart.bundle.js"></script>
    <!-- 1. Load libraries -->
    <!-- Polyfill for older browsers -->
    <script src="https://unpkg.com/core-js/client/shim.min.js"></script>

    <script src="https://unpkg.com/zone.js@0.6.25?main=browser"></script>
    <script src="https://unpkg.com/reflect-metadata@0.1.8"></script>
    <script src="https://unpkg.com/systemjs@0.19.39/dist/system.src.js"></script>

    <!-- 2. Configure SystemJS -->
    <script src="systemjs.config.js"></script>
    
    <style>
  .unselectable {
  -webkit-user-select: none;
  -moz-user-select: none;
  user-select: none;
} 
</style>
  </head>

  <!-- 3. Display the application -->
  <body>
    <my-app>Loading...</my-app>
  </body>
</html>


<!-- 
Copyright 2016 Google Inc. All Rights Reserved.
Use of this source code is governed by an MIT-style license that
can be found in the LICENSE file at http://angular.io/license
-->

/**
 * WEB ANGULAR VERSION
 * (based on systemjs.config.js in angular.io)
 * System configuration for Angular samples
 * Adjust as necessary for your application needs.
 */
(function (global) {
  System.config({
    // DEMO ONLY! REAL CODE SHOULD NOT TRANSPILE IN THE BROWSER
    transpiler: 'ts',
    typescriptOptions: {
      // Copy of compiler options in standard tsconfig.json
      "target": "es5",
      "module": "commonjs",
      "moduleResolution": "node",
      "sourceMap": true,
      "emitDecoratorMetadata": true,
      "experimentalDecorators": true,
      "noImplicitAny": true,
      "suppressImplicitAnyIndexErrors": true
    },
    meta: {
      'typescript': {
        "exports": "ts"
      }
    },
    paths: {
      // paths serve as alias
      'npm:': 'https://unpkg.com/'
    },
    // map tells the System loader where to look for things
    map: {
      // our app is within the app folder
      app: 'app',

      // angular bundles
      '@angular/core': 'npm:@angular/core/bundles/core.umd.js',
      '@angular/common': 'npm:@angular/common/bundles/common.umd.js',
      '@angular/compiler': 'npm:@angular/compiler/bundles/compiler.umd.js',
      '@angular/platform-browser': 'npm:@angular/platform-browser/bundles/platform-browser.umd.js',
      '@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic/bundles/platform-browser-dynamic.umd.js',
      '@angular/http': 'npm:@angular/http/bundles/http.umd.js',
      '@angular/router': 'npm:@angular/router/bundles/router.umd.js',
      '@angular/forms': 'npm:@angular/forms/bundles/forms.umd.js',
      '@angular/upgrade': 'npm:@angular/upgrade/bundles/upgrade.umd.js',
      '@angular/upgrade/static': 'npm:@angular/upgrade/bundles/upgrade-static.umd.js',

      // other libraries
      'rxjs':                      'npm:rxjs',
      'angular-in-memory-web-api': 'npm:angular-in-memory-web-api/bundles/in-memory-web-api.umd.js',
      'ts':                        'npm:plugin-typescript@4.0.10/lib/plugin.js',
      'typescript':                'npm:typescript@2.0.3/lib/typescript.js',
      'primeng':                   'npm:primeng@1.1.3/primeng.js'

    },
    // packages tells the System loader how to load when no filename and/or no extension
    packages: {
      app: {
        main: './main.ts',
        defaultExtension: 'ts'
      },
      rxjs: {
        defaultExtension: 'js'
      },
      primeng: {
        defaultExtension: 'js'
      }
    }
  });

  if (!global.noBootstrap) { bootstrap(); }

  // Bootstrap the `AppModule`(skip the `app/main.ts` that normally does this)
  function bootstrap() {
    console.log('Auto-bootstrapping');

    // Stub out `app/main.ts` so System.import('app') doesn't fail if called in the index.html
    System.set(System.normalizeSync('app/main.ts'), System.newModule({ }));

    // bootstrap and launch the app (equivalent to standard main.ts)
    Promise.all([
      System.import('@angular/platform-browser-dynamic'),
      getAppModule()
    ])
    .then(function (imports) {
      var platform = imports[0];
      var app      = imports[1];
      platform.platformBrowserDynamic().bootstrapModule(app.AppModule);
    })
    .catch(function(err){ console.error(err); });
  }

  // Import AppModule or make the default AppModule if there isn't one
  // returns a promise for the AppModule
  function getAppModule() {
    if (global.noAppModule) {
      return makeAppModule();
    }
    return System.import('app/app.module').catch(makeAppModule)
  }

  function makeAppModule() {
    console.log('No AppModule; making a bare-bones, default AppModule');

    return Promise.all([
      System.import('@angular/core'),
      System.import('@angular/platform-browser'),
      System.import('app/app.component')
    ])
    .then(function (imports) {

      var core    = imports[0];
      var browser = imports[1];
      var appComp = imports[2].AppComponent;

      var AppModule = function() {}

      AppModule.annotations = [
        new core.NgModule({
          imports:      [ browser.BrowserModule ],
          declarations: [ appComp ],
          bootstrap:    [ appComp ]
        })
      ]
      return {AppModule: AppModule};
    })
  }
})(this);
<div class="unselectable" >
<div>
   <p-chart #chart type="doughnut" [data]="data" [options]="options"></p-chart>
</div>
<div styl="margin-top:10px" *ngIf="readonly" >
  <p-slider [step]="steps" [(ngModel)]="Value" [animate]="true" [min]="0" [max]="MaxValue"></p-slider>
</div>
</div>

# PrimeNG Issue Template
Please create a test case and attach the link of the plunkr to your github issue report.