primeng
Version:
[](https://opensource.org/licenses/MIT) [](https://badge.fury.io/js/primeng) [ • 12.4 kB
JavaScript
import * as i0 from '@angular/core';
import { forwardRef, EventEmitter, Component, ChangeDetectionStrategy, ViewEncapsulation, Input, Output, NgModule } from '@angular/core';
import * as i1 from '@angular/common';
import { CommonModule } from '@angular/common';
import { NG_VALUE_ACCESSOR } from '@angular/forms';
const KNOB_VALUE_ACCESSOR = {
provide: NG_VALUE_ACCESSOR,
useExisting: forwardRef(() => Knob),
multi: true
};
class Knob {
constructor(cd, el) {
this.cd = cd;
this.el = el;
this.valueColor = "var(--primary-color, Black)";
this.rangeColor = "var(--surface-d, LightGray)";
this.textColor = "var(--text-color-secondary, Black)";
this.valueTemplate = "{value}";
this.size = 100;
this.step = 1;
this.min = 0;
this.max = 100;
this.strokeWidth = 14;
this.showValue = true;
this.readonly = false;
this.onChange = new EventEmitter();
this.radius = 40;
this.midX = 50;
this.midY = 50;
this.minRadians = 4 * Math.PI / 3;
this.maxRadians = -Math.PI / 3;
this.value = null;
this.onModelChange = () => { };
this.onModelTouched = () => { };
}
mapRange(x, inMin, inMax, outMin, outMax) {
return (x - inMin) * (outMax - outMin) / (inMax - inMin) + outMin;
}
onClick(event) {
if (!this.disabled && !this.readonly) {
this.updateValue(event.offsetX, event.offsetY);
}
}
updateValue(offsetX, offsetY) {
let dx = offsetX - this.size / 2;
let dy = this.size / 2 - offsetY;
let angle = Math.atan2(dy, dx);
let start = -Math.PI / 2 - Math.PI / 6;
this.updateModel(angle, start);
}
updateModel(angle, start) {
let mappedValue;
if (angle > this.maxRadians)
mappedValue = this.mapRange(angle, this.minRadians, this.maxRadians, this.min, this.max);
else if (angle < start)
mappedValue = this.mapRange(angle + 2 * Math.PI, this.minRadians, this.maxRadians, this.min, this.max);
else
return;
let newValue = Math.round((mappedValue - this.min) / this.step) * this.step + this.min;
this.value = newValue;
this.onModelChange(this.value);
this.onChange.emit(this.value);
}
onMouseDown(event) {
if (!this.disabled && !this.readonly) {
this.windowMouseMoveListener = this.onMouseMove.bind(this);
this.windowMouseUpListener = this.onMouseUp.bind(this);
window.addEventListener('mousemove', this.windowMouseMoveListener);
window.addEventListener('mouseup', this.windowMouseUpListener);
event.preventDefault();
}
}
onMouseUp(event) {
if (!this.disabled && !this.readonly) {
window.removeEventListener('mousemove', this.windowMouseMoveListener);
window.removeEventListener('mouseup', this.windowMouseUpListener);
this.windowMouseUpListener = null;
this.windowMouseMoveListener = null;
event.preventDefault();
}
}
onTouchStart(event) {
if (!this.disabled && !this.readonly) {
this.windowTouchMoveListener = this.onTouchMove.bind(this);
this.windowTouchEndListener = this.onTouchEnd.bind(this);
window.addEventListener('touchmove', this.windowTouchMoveListener);
window.addEventListener('touchend', this.windowTouchEndListener);
event.preventDefault();
}
}
onTouchEnd(event) {
if (!this.disabled && !this.readonly) {
window.removeEventListener('touchmove', this.windowTouchMoveListener);
window.removeEventListener('touchend', this.windowTouchEndListener);
this.windowTouchMoveListener = null;
this.windowTouchEndListener = null;
event.preventDefault();
}
}
onMouseMove(event) {
if (!this.disabled && !this.readonly) {
this.updateValue(event.offsetX, event.offsetY);
event.preventDefault();
}
}
onTouchMove(event) {
if (!this.disabled && !this.readonly && event.touches.length == 1) {
const rect = this.el.nativeElement.children[0].getBoundingClientRect();
const touch = event.targetTouches.item(0);
const offsetX = touch.clientX - rect.left;
const offsetY = touch.clientY - rect.top;
this.updateValue(offsetX, offsetY);
}
}
writeValue(value) {
this.value = value;
this.cd.markForCheck();
}
registerOnChange(fn) {
this.onModelChange = fn;
}
registerOnTouched(fn) {
this.onModelTouched = fn;
}
setDisabledState(val) {
this.disabled = val;
this.cd.markForCheck();
}
containerClass() {
return {
'p-knob p-component': true,
'p-disabled': this.disabled
};
}
rangePath() {
return `M ${this.minX()} ${this.minY()} A ${this.radius} ${this.radius} 0 1 1 ${this.maxX()} ${this.maxY()}`;
}
valuePath() {
return `M ${this.zeroX()} ${this.zeroY()} A ${this.radius} ${this.radius} 0 ${this.largeArc()} ${this.sweep()} ${this.valueX()} ${this.valueY()}`;
}
zeroRadians() {
if (this.min > 0 && this.max > 0)
return this.mapRange(this.min, this.min, this.max, this.minRadians, this.maxRadians);
else
return this.mapRange(0, this.min, this.max, this.minRadians, this.maxRadians);
}
valueRadians() {
return this.mapRange(this._value, this.min, this.max, this.minRadians, this.maxRadians);
}
minX() {
return this.midX + Math.cos(this.minRadians) * this.radius;
}
minY() {
return this.midY - Math.sin(this.minRadians) * this.radius;
}
maxX() {
return this.midX + Math.cos(this.maxRadians) * this.radius;
}
maxY() {
return this.midY - Math.sin(this.maxRadians) * this.radius;
}
zeroX() {
return this.midX + Math.cos(this.zeroRadians()) * this.radius;
}
zeroY() {
return this.midY - Math.sin(this.zeroRadians()) * this.radius;
}
valueX() {
return this.midX + Math.cos(this.valueRadians()) * this.radius;
}
valueY() {
return this.midY - Math.sin(this.valueRadians()) * this.radius;
}
largeArc() {
return Math.abs(this.zeroRadians() - this.valueRadians()) < Math.PI ? 0 : 1;
}
sweep() {
return this.valueRadians() > this.zeroRadians() ? 0 : 1;
}
valueToDisplay() {
return this.valueTemplate.replace("{value}", this._value.toString());
}
get _value() {
return this.value != null ? this.value : this.min;
}
}
Knob.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "12.0.4", ngImport: i0, type: Knob, deps: [{ token: i0.ChangeDetectorRef }, { token: i0.ElementRef }], target: i0.ɵɵFactoryTarget.Component });
Knob.ɵcmp = i0.ɵɵngDeclareComponent({ minVersion: "12.0.0", version: "12.0.4", type: Knob, selector: "p-knob", inputs: { styleClass: "styleClass", style: "style", severity: "severity", valueColor: "valueColor", rangeColor: "rangeColor", textColor: "textColor", valueTemplate: "valueTemplate", name: "name", size: "size", step: "step", min: "min", max: "max", strokeWidth: "strokeWidth", disabled: "disabled", showValue: "showValue", readonly: "readonly" }, outputs: { onChange: "onChange" }, providers: [KNOB_VALUE_ACCESSOR], ngImport: i0, template: `
<div [ngClass]="containerClass()" [class]="styleClass" [ngStyle]="style">
<svg viewBox="0 0 100 100" [style.width]="size + 'px'" [style.height]="size + 'px'" (click)="onClick($event)" (mousedown)="onMouseDown($event)" (mouseup)="onMouseUp($event)"
(touchstart)="onTouchStart($event)" (touchend)="onTouchEnd($event)">
<path [attr.d]="rangePath()" [attr.stroke-width]="strokeWidth" [attr.stroke]="rangeColor" class="p-knob-range"></path>
<path [attr.d]="valuePath()" [attr.stroke-width]="strokeWidth" [attr.stroke]="valueColor" class="p-knob-value"></path>
<text *ngIf="showValue" [attr.x]="50" [attr.y]="57" text-anchor="middle" [attr.fill]="textColor" class="p-knob-text" [attr.name]="name">{{valueToDisplay()}}</text>
</svg>
</div>
`, isInline: true, styles: ["@keyframes dash-frame{to{stroke-dashoffset:0}}.p-knob-range{fill:none;transition:stroke .1s ease-in}.p-knob-value{animation-name:dash-frame;animation-fill-mode:forwards;fill:none}.p-knob-text{font-size:1.3rem;text-align:center}"], directives: [{ type: i1.NgClass, selector: "[ngClass]", inputs: ["class", "ngClass"] }, { type: i1.NgStyle, selector: "[ngStyle]", inputs: ["ngStyle"] }, { type: i1.NgIf, selector: "[ngIf]", inputs: ["ngIf", "ngIfThen", "ngIfElse"] }], changeDetection: i0.ChangeDetectionStrategy.OnPush, encapsulation: i0.ViewEncapsulation.None });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "12.0.4", ngImport: i0, type: Knob, decorators: [{
type: Component,
args: [{
selector: 'p-knob',
template: `
<div [ngClass]="containerClass()" [class]="styleClass" [ngStyle]="style">
<svg viewBox="0 0 100 100" [style.width]="size + 'px'" [style.height]="size + 'px'" (click)="onClick($event)" (mousedown)="onMouseDown($event)" (mouseup)="onMouseUp($event)"
(touchstart)="onTouchStart($event)" (touchend)="onTouchEnd($event)">
<path [attr.d]="rangePath()" [attr.stroke-width]="strokeWidth" [attr.stroke]="rangeColor" class="p-knob-range"></path>
<path [attr.d]="valuePath()" [attr.stroke-width]="strokeWidth" [attr.stroke]="valueColor" class="p-knob-value"></path>
<text *ngIf="showValue" [attr.x]="50" [attr.y]="57" text-anchor="middle" [attr.fill]="textColor" class="p-knob-text" [attr.name]="name">{{valueToDisplay()}}</text>
</svg>
</div>
`,
providers: [KNOB_VALUE_ACCESSOR],
changeDetection: ChangeDetectionStrategy.OnPush,
encapsulation: ViewEncapsulation.None,
styleUrls: ['./knob.css']
}]
}], ctorParameters: function () { return [{ type: i0.ChangeDetectorRef }, { type: i0.ElementRef }]; }, propDecorators: { styleClass: [{
type: Input
}], style: [{
type: Input
}], severity: [{
type: Input
}], valueColor: [{
type: Input
}], rangeColor: [{
type: Input
}], textColor: [{
type: Input
}], valueTemplate: [{
type: Input
}], name: [{
type: Input
}], size: [{
type: Input
}], step: [{
type: Input
}], min: [{
type: Input
}], max: [{
type: Input
}], strokeWidth: [{
type: Input
}], disabled: [{
type: Input
}], showValue: [{
type: Input
}], readonly: [{
type: Input
}], onChange: [{
type: Output
}] } });
class KnobModule {
}
KnobModule.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "12.0.4", ngImport: i0, type: KnobModule, deps: [], target: i0.ɵɵFactoryTarget.NgModule });
KnobModule.ɵmod = i0.ɵɵngDeclareNgModule({ minVersion: "12.0.0", version: "12.0.4", ngImport: i0, type: KnobModule, declarations: [Knob], imports: [CommonModule], exports: [Knob] });
KnobModule.ɵinj = i0.ɵɵngDeclareInjector({ minVersion: "12.0.0", version: "12.0.4", ngImport: i0, type: KnobModule, imports: [[CommonModule]] });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "12.0.4", ngImport: i0, type: KnobModule, decorators: [{
type: NgModule,
args: [{
imports: [CommonModule],
exports: [Knob],
declarations: [Knob]
}]
}] });
/**
* Generated bundle index. Do not edit.
*/
export { KNOB_VALUE_ACCESSOR, Knob, KnobModule };
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