import Theme from './theme.js'
/**
* Class that represents a PixiJS Progress.
*
* @example
* // Create the progress
* const progress = new Progress({
* app: app
* })
*
* // Add the progress to a DisplayObject
* app.scene.addChild(progress)
*
* @class
* @extends PIXI.Container
* @see {@link http://pixijs.download/dev/docs/PIXI.Container.html|PIXI.Container}
* @see {@link https://www.iwm-tuebingen.de/iwmbrowser/lib/pixi/progress.html|DocTest}
*/
export default class Progress extends PIXI.Container {
/**
* Creates an instance of a Progress.
*
* @constructor
* @param {object} [opts] - An options object to specify to style and behaviour of the progress.
* @param {number} [opts.id=auto generated] - The id of the progress.
* @param {PIXIApp} [opts.app=window.app] - The app where the progress belongs to.
* @param {number} [opts.width] - The width of the progress bar. When not set, the width is the size of the app
* minus 2 * opts.margin.
* @param {number} [opts.height=2] - The height of the progress bar.
* @param {string|Theme} [opts.theme=dark] - The theme to use for this progress. Possible values are dark, light, red
* or a Theme object.
* @param {number} [opts.margin=100] - The outer spacing to the edges of the app.
* @param {number} [opts.padding=0] - The inner spacing (distance from icon and/or label) to the border.
* @param {number} [opts.fill=Theme.fill] - The color of the progress background as a hex value.
* @param {number} [opts.fillAlpha=Theme.fillAlpha] - The alpha value of the background.
* @param {number} [opts.fillActive=Theme.primaryColor] - The color of the progress background when activated.
* @param {number} [opts.fillActiveAlpha=Theme.fillActiveAlpha] - The alpha value of the background when activated.
* @param {number} [opts.stroke=Theme.stroke] - The color of the border as a hex value.
* @param {number} [opts.strokeWidth=0] - The width of the border in pixel.
* @param {number} [opts.strokeAlpha=Theme.strokeAlpha] - The alpha value of the border.
* @param {number} [opts.strokeActive=Theme.strokeActive] - The color of the border when activated.
* @param {number} [opts.strokeActiveWidth=0] - The width of the border in pixel when activated.
* @param {number} [opts.strokeActiveAlpha=Theme.strokeActiveAlpha] - The alpha value of the border when activated.
* @param {boolean} [opts.background=false] - The alpha value of the border when activated.
* @param {number} [opts.backgroundFill=Theme.background] - A textstyle object for the styling of the label. See PIXI.TextStyle
* for possible options.
* @param {number} [opts.backgroundFillAlpha=1] - A textstyle object for the styling of the label when the
* progress is activated. See PIXI.TextStyle for possible options.
* @param {number} [opts.radius=Theme.radius] - The radius of the four corners of the progress (which is a rounded rectangle).
* @param {boolean} [opts.destroyOnComplete=true] - Should the progress bar destroy itself after reaching 100 %?
* @param {boolean} [opts.visible=true] - Is the progress initially visible (property visible)?
*/
constructor(opts = {}) {
super()
const theme = Theme.fromString(opts.theme)
this.theme = theme
this.opts = Object.assign(
{},
{
id: PIXI.utils.uid(),
app: window.app,
width: null,
height: 2,
margin: 100,
padding: 0,
fill: theme.fill,
fillAlpha: theme.fillAlpha,
fillActive: theme.primaryColor,
fillActiveAlpha: theme.fillActiveAlpha,
stroke: theme.stroke,
strokeWidth: 0,
strokeAlpha: theme.strokeAlpha,
strokeActive: theme.strokeActive,
strokeActiveWidth: 0,
strokeActiveAlpha: theme.strokeActiveAlpha,
background: false,
backgroundFill: theme.background,
backgroundFillAlpha: 1,
radius: theme.radius,
destroyOnComplete: true,
visible: true
},
opts
)
this.id = this.opts.id
this.background = null
this.bar = null
this.barActive = null
this.alpha = 0
this.visible = this.opts.visible
this._progress = 0
// setup
//-----------------
this.setup()
// layout
//-----------------
this.layout()
}
/**
* Creates children and instantiates everything.
*
* @private
* @return {Progress} A reference to the progress for chaining.
*/
setup() {
// interaction
//-----------------
this.on('added', e => {
this.show()
})
// background
//-----------------
if (this.opts.background) {
const background = new PIXI.Graphics()
this.background = background
this.addChild(background)
}
// bar
//-----------------
const bar = new PIXI.Graphics()
this.bar = bar
this.addChild(bar)
const barActive = new PIXI.Graphics()
this.barActive = barActive
this.bar.addChild(barActive)
return this
}
/**
* Should be called to refresh the layout of the progress. Can be used after resizing.
*
* @return {Progress} A reference to the progress for chaining.
*/
layout() {
const width = this.opts.app.size.width
const height = this.opts.app.size.height
// background
//-----------------
if (this.opts.background) {
this.background.clear()
this.background.beginFill(
this.opts.backgroundFill,
this.opts.backgroundFillAlpha
)
this.background.drawRect(0, 0, width, height)
this.background.endFill()
}
this.draw()
return this
}
/**
* Draws the canvas.
*
* @private
* @return {Progress} A reference to the progress for chaining.
*/
draw() {
this.bar.clear()
this.barActive.clear()
this.drawBar()
this.drawBarActive()
return this
}
/**
* Draws the bar.
*
* @private
* @return {Progress} A reference to the progress for chaining.
*/
drawBar() {
const width = this.opts.app.size.width
const height = this.opts.app.size.height
this.radius = this.opts.radius
if (this.radius * 2 > this.opts.height) {
this.radius = this.opts.height / 2
}
const wantedWidth = this.opts.width || width - 2 * this.opts.margin
const wantedHeight = this.opts.height
this.bar.lineStyle(
this.opts.strokeWidth,
this.opts.stroke,
this.opts.strokeAlpha
)
this.bar.beginFill(this.opts.fill, this.opts.fillAlpha)
if (this.radius > 1) {
this.bar.drawRoundedRect(
0,
0,
wantedWidth,
wantedHeight,
this.radius
)
} else {
this.bar.drawRect(0, 0, wantedWidth, wantedHeight)
}
this.bar.endFill()
this.bar.x = width / 2 - this.bar.width / 2
this.bar.y = height / 2 - this.bar.height / 2
return this
}
/**
* Draws the active bar.
*
* @private
* @return {Progress} A reference to the progress for chaining.
*/
drawBarActive() {
const wantedWidth = this.bar.width - 2 * this.opts.padding
const wantedHeight = this.bar.height - 2 * this.opts.padding
const barActiveWidth = (wantedWidth * this._progress) / 100
this.barActive.lineStyle(
this.opts.strokeActiveWidth,
this.opts.strokeActive,
this.opts.strokeActiveAlpha
)
this.barActive.beginFill(
this.opts.fillActive,
this.opts.fillActiveAlpha
)
if (barActiveWidth > 0) {
if (this.radius > 1) {
this.barActive.drawRoundedRect(
0,
0,
barActiveWidth,
wantedHeight,
this.radius
)
} else {
this.barActive.drawRect(0, 0, barActiveWidth, wantedHeight)
}
}
this.barActive.endFill()
this.barActive.x = this.opts.padding
this.barActive.y = this.opts.padding
return this
}
/**
* Shows the progress (sets his alpha values to 1).
*
* @return {Progress} A reference to the progress for chaining.
*/
show() {
TweenLite.to(this, this.theme.fast, { alpha: 1 })
return this
}
/**
* Hides the progress (sets his alpha values to 1).
*
* @return {Progress} A reference to the progress for chaining.
*/
hide() {
TweenLite.to(this, this.theme.fast, {
alpha: 0,
onComplete: () => (this.visible = false)
})
return this
}
/**
* Gets or sets the progress. Has to be a number between 0 and 100.
*
* @member {number}
*/
get progress() {
return this._progress
}
set progress(value) {
value = Math.round(value)
if (value < 0) {
value = 0
}
if (value > 100) {
value = 100
}
TweenLite.to(this, this.theme.normal, {
_progress: value,
onUpdate: () => this.draw(),
onComplete: () => {
if (value === 100 && this.opts.destroyOnComplete) {
TweenLite.to(this, this.theme.fast, {
alpha: 0,
onComplete: () => this.destroy({ children: true })
})
}
}
})
}
}