import {Component, ElementRef, EventEmitter, HostListener, Input, OnChanges, OnDestroy, OnInit, Output, ViewChild} from '@angular/core';
import {Subject} from 'rxjs';
import {debounceTime} from 'rxjs/operators';
import {EditorItem, HotZoneItem, Label, MySprite} from './Unit';
import TWEEN from '@tweenjs/tween.js';
@Component({
selector: 'app-custom-hot-zone',
templateUrl: './custom-hot-zone.component.html',
styleUrls: ['./custom-hot-zone.component.scss']
})
export class CustomHotZoneComponent implements OnInit, OnDestroy, OnChanges {
_bgItem = null;
@Input()
set bgItem(v) {
this._bgItem = v;
this.init();
}
get bgItem() {
return this._bgItem;
}
@Input()
imgItemArr = null;
@Input()
hotZoneItemArr = null;
@Input()
hotZoneArr = null;
@Output()
save = new EventEmitter();
@ViewChild('canvas', {static: true }) canvas: ElementRef;
@ViewChild('wrap', {static: true }) wrap: ElementRef;
// @HostListener('window:resize', ['$event'])
canvasWidth = 1280;
canvasHeight = 720;
canvasBaseW = 1280;
canvasBaseH = 720;
mapScale = 1;
ctx;
mx;
my; // 点击坐标
// 资源
// rawImages = new Map(res);
// 声音
bgAudio = new Audio();
images = new Map();
animationId: any;
// winResizeEventStream = new Subject();
canvasLeft;
canvasTop;
renderArr;
imgArr = [];
oldPos;
curItem;
bg: MySprite;
changeSizeFlag = false;
changeTopSizeFlag = false;
changeRightSizeFlag = false;
constructor() {
}
onResize(event) {
// this.winResizeEventStream.next();
}
ngOnInit() {
this.initListener();
// this.init();
this.update();
}
ngOnDestroy() {
window.cancelAnimationFrame(this.animationId);
}
ngOnChanges() {
}
onBackgroundUploadSuccess(e) {
console.log('e: ', e);
this.bgItem.url = e.url;
this.refreshBackground();
}
refreshBackground(callBack = null) {
if (!this.bg) {
this.bg = new MySprite(this.ctx);
this.renderArr.push(this.bg);
}
const bg = this.bg;
if (this.bgItem.url) {
bg.load(this.bgItem.url).then(() => {
const rate1 = this.canvasWidth / bg.width;
const rate2 = this.canvasHeight / bg.height;
const rate = Math.min(rate1, rate2);
bg.setScaleXY(rate);
bg.x = this.canvasWidth / 2;
bg.y = this.canvasHeight / 2;
if (callBack) {
callBack();
}
});
}
}
addBtnClick() {
// this.imgArr.push({});
// this.hotZoneArr.push({});
const item = this.getHotZoneItem();
this.hotZoneArr.push(item);
this.refreshHotZoneId();
console.log('hotZoneArr:', this.hotZoneArr);
}
onImgUploadSuccessByImg(e, img) {
img.pic_url = e.url;
this.refreshImage (img);
}
refreshImage(img) {
this.hideAllLineDash();
img.picItem = this.getPicItem(img);
this.refreshImageId();
}
refreshHotZoneId() {
for (let i = 0; i < this.hotZoneArr.length; i++) {
this.hotZoneArr[i].index = i;
if (this.hotZoneArr[i]) {
this.hotZoneArr[i].text = 'item-' + (i + 1);
}
}
}
refreshImageId() {
for (let i = 0; i < this.imgArr.length; i++) {
this.imgArr[i].id = i;
if (this.imgArr[i].picItem) {
this.imgArr[i].picItem.text = 'Image-' + (i + 1);
}
}
}
getHotZoneItem( saveData = null) {
const itemW = 200;
const itemH = 200;
const item = new HotZoneItem(this.ctx);
item.setSize(itemW, itemH);
item.anchorX = 0.5;
item.anchorY = 0.5;
item.x = this.canvasWidth / 2;
item.y = this.canvasHeight / 2;
if (saveData) {
const saveRect = saveData.rect;
item.scaleX = saveRect.width / item.width;
item.scaleY = saveRect.height / item.height;
item.x = saveRect.x + saveRect.width / 2 ;
item.y = saveRect.y + saveRect.height / 2;
}
item.showLineDash();
return item;
}
getPicItem(img, saveData = null) {
const item = new EditorItem(this.ctx);
item.load(img.pic_url).then( img => {
let maxW, maxH;
if (this.bg) {
maxW = this.bg.width * this.bg.scaleX;
maxH = this.bg.height * this.bg.scaleY;
} else {
maxW = this.canvasWidth;
maxH = this.canvasHeight;
}
let scaleX = maxW / 3 / item.width;
let scaleY = maxH / 3 / item.height;
if (item.height * scaleX < this.canvasHeight) {
item.setScaleXY(scaleX);
} else {
item.setScaleXY(scaleY);
}
item.x = this.canvasWidth / 2;
item.y = this.canvasHeight / 2;
if (saveData) {
const saveRect = saveData.rect;
item.setScaleXY(saveRect.width / item.width);
item.x = saveRect.x + saveRect.width / 2 ;
item.y = saveRect.y + saveRect.height / 2;
} else {
item.showLineDash();
}
});
return item;
}
onAudioUploadSuccessByImg(e, img) {
img.audio_url = e.url;
}
deleteItem(e, i) {
// this.imgArr.splice(i , 1);
// this.refreshImageId();
this.hotZoneArr.splice(i, 1);
this.refreshHotZoneId();
}
init() {
this.initData();
this.initCtx();
this.initItem();
}
initItem() {
if (!this.bgItem) {
this.bgItem = {};
} else {
this.refreshBackground(() => {
// if (!this.imgItemArr) {
// this.imgItemArr = [];
// } else {
// this.initImgArr();
// }
// console.log('aaaaa');
if (!this.hotZoneItemArr) {
this.hotZoneItemArr = [];
} else {
this.initHotZoneArr();
}
});
}
}
initHotZoneArr() {
// console.log('this.hotZoneArr: ', this.hotZoneArr);
let curBgRect;
if (this.bg) {
curBgRect = this.bg.getBoundingBox();
} else {
curBgRect = {x: 0, y: 0, width: this.canvasWidth, height: this.canvasHeight};
}
let oldBgRect = this.bgItem.rect;
if (!oldBgRect) {
oldBgRect = curBgRect;
}
const rate = curBgRect.width / oldBgRect.width;
console.log('rate: ', rate);
this.hotZoneArr = [];
const arr = this.hotZoneItemArr.concat();
for (let i = 0; i < arr.length; i++) {
const data = JSON.parse(JSON.stringify(arr[i]));
// const img = {pic_url: data.pic_url};
data.rect.x *= rate;
data.rect.y *= rate;
data.rect.width *= rate;
data.rect.height *= rate;
data.rect.x += curBgRect.x;
data.rect.y += curBgRect.y;
// img['picItem'] = this.getPicItem(img, data);
// img['audio_url'] = arr[i].audio_url;
// this.imgArr.push(img);
const item = this.getHotZoneItem( data);
console.log('item: ', item);
this.hotZoneArr.push(item);
}
this.refreshHotZoneId();
// this.refreshImageId();
}
initImgArr() {
console.log('this.imgItemArr: ', this.imgItemArr);
let curBgRect;
if (this.bg) {
curBgRect = this.bg.getBoundingBox();
} else {
curBgRect = {x: 0, y: 0, width: this.canvasWidth, height: this.canvasHeight};
}
let oldBgRect = this.bgItem.rect;
if (!oldBgRect) {
oldBgRect = curBgRect;
}
const rate = curBgRect.width / oldBgRect.width;
console.log('rate: ', rate);
this.imgArr = [];
const arr = this.imgItemArr.concat();
for (let i = 0; i < arr.length; i++) {
const data = JSON.parse(JSON.stringify(arr[i]));
const img = {pic_url: data.pic_url};
data.rect.x *= rate;
data.rect.y *= rate;
data.rect.width *= rate;
data.rect.height *= rate;
data.rect.x += curBgRect.x;
data.rect.y += curBgRect.y;
img['picItem'] = this.getPicItem(img, data);
img['audio_url'] = arr[i].audio_url;
this.imgArr.push(img);
}
this.refreshImageId();
}
initData() {
this.canvasWidth = this.wrap.nativeElement.clientWidth;
this.canvasHeight = this.wrap.nativeElement.clientHeight;
this.mapScale = this.canvasWidth / this.canvasBaseW;
this.renderArr = [];
this.bg = null;
this.imgArr = [];
this.hotZoneArr = [];
}
initCtx() {
this.ctx = this.canvas.nativeElement.getContext('2d');
this.canvas.nativeElement.width = this.canvasWidth;
this.canvas.nativeElement.height = this.canvasHeight;
}
mapDown(event) {
this.oldPos = {x: this.mx, y: this.my};
const arr = this.hotZoneArr;
for (let i = arr.length - 1; i >= 0 ; i--) {
const item = arr[i];
if (item) {
if (this.checkClickTarget(item)) {
if (item.lineDashFlag && this.checkClickTarget(item.arrow)) {
this.changeItemSize(item);
} else if (item.lineDashFlag && this.checkClickTarget(item.arrowTop)) {
this.changeItemTopSize(item);
} else if (item.lineDashFlag && this.checkClickTarget(item.arrowRight)) {
this.changeItemRightSize(item);
} else {
this.changeCurItem(item);
}
return;
}
}
}
// this.hideAllLineDash();
}
mapMove(event) {
if (!this.curItem) { return; }
if (this.changeSizeFlag) {
this.changeSize();
} else if (this.changeTopSizeFlag) {
this.changeTopSize();
} else if (this.changeRightSizeFlag) {
this.changeRightSize();
} else {
const addX = this.mx - this.oldPos.x;
const addY = this.my - this.oldPos.y;
this.curItem.x += addX;
this.curItem.y += addY;
}
this.oldPos = {x: this.mx, y: this.my};
}
mapUp(event) {
this.curItem = null;
this.changeSizeFlag = false;
this.changeTopSizeFlag = false;
this.changeRightSizeFlag = false;
}
changeSize() {
const rect = this.curItem.getBoundingBox();
let lenW = ( this.mx - (rect.x + rect.width / 2) ) * 2;
let lenH = ( (rect.y + rect.height / 2) - this.my ) * 2;
let minLen = 20;
let s;
if (lenW < lenH) {
if (lenW < minLen) {
lenW = minLen;
}
s = lenW / this.curItem.width;
} else {
if (lenH < minLen) {
lenH = minLen;
}
s = lenH / this.curItem.height;
}
// console.log('s: ', s);
this.curItem.setScaleXY(s);
this.curItem.refreshLabelScale();
}
changeTopSize() {
const rect = this.curItem.getBoundingBox();
// let lenW = ( this.mx - (rect.x + rect.width / 2) ) * 2;
let lenH = ( (rect.y + rect.height / 2) - this.my ) * 2;
let minLen = 20;
let s;
// if (lenW < lenH) {
// if (lenW < minLen) {
// lenW = minLen;
// }
// s = lenW / this.curItem.width;
//
// } else {
if (lenH < minLen) {
lenH = minLen;
}
s = lenH / this.curItem.height;
// }
// console.log('s: ', s);
this.curItem.scaleY = s;
this.curItem.refreshLabelScale();
}
changeRightSize() {
const rect = this.curItem.getBoundingBox();
let lenW = ( this.mx - (rect.x + rect.width / 2) ) * 2;
// let lenH = ( (rect.y + rect.height / 2) - this.my ) * 2;
let minLen = 20;
let s;
if (lenW < minLen) {
lenW = minLen;
}
s = lenW / this.curItem.width;
this.curItem.scaleX = s;
this.curItem.refreshLabelScale();
}
changeItemSize(item) {
this.curItem = item;
this.changeSizeFlag = true;
}
changeItemTopSize(item) {
this.curItem = item;
this.changeTopSizeFlag = true;
}
changeItemRightSize(item) {
this.curItem = item;
this.changeRightSizeFlag = true;
}
changeCurItem(item) {
this.hideAllLineDash();
this.curItem = item;
this.curItem.showLineDash();
}
hideAllLineDash() {
for (let i = 0; i < this.imgArr.length; i++) {
if (this.imgArr[i].picItem) {
this.imgArr[i].picItem.hideLineDash();
}
}
}
update() {
if (!this.ctx) {
return;
}
this.animationId = window.requestAnimationFrame(this.update.bind(this));
// 清除画布内容
this.ctx.clearRect(0, 0, this.canvasWidth, this.canvasHeight);
for (let i = 0; i < this.renderArr.length; i++) {
this.renderArr[i].update(this);
}
// for (let i = 0; i < this.imgArr.length; i++) {
// const picItem = this.imgArr[i].picItem;
// if (picItem) {
// picItem.update(this);
// }
// }
this.updateArr(this.hotZoneArr);
TWEEN.update();
}
updateArr(arr) {
if (arr) {
for (let i = 0; i < arr.length; i++) {
arr[i].update();
}
}
}
renderAfterResize() {
this.canvasWidth = this.wrap.nativeElement.clientWidth;
this.canvasHeight = this.wrap.nativeElement.clientHeight;
this.init();
}
initListener() {
// this.winResizeEventStream
// .pipe(debounceTime(500))
// .subscribe(data => {
// this.renderAfterResize();
// });
if (this.IsPC()) {
this.canvas.nativeElement.addEventListener('mousedown', (event) => {
setMxMyByMouse(event);
this.mapDown(event);
});
this.canvas.nativeElement.addEventListener('mousemove', (event) => {
setMxMyByMouse(event);
this.mapMove(event);
});
this.canvas.nativeElement.addEventListener('mouseup', (event) => {
setMxMyByMouse(event);
this.mapUp(event);
});
const setMxMyByMouse = (event) => {
this.mx = event.offsetX;
this.my = event.offsetY;
};
} else {
this.canvas.nativeElement.addEventListener('touchstart', (event) => {
setMxMyByTouch(event);
this.mapDown(event);
});
this.canvas.nativeElement.addEventListener('touchmove', (event) => {
setMxMyByTouch(event);
this.mapMove(event);
});
this.canvas.nativeElement.addEventListener('touchend', (event) => {
setMxMyByTouch(event);
this.mapUp(event);
});
this.canvas.nativeElement.addEventListener('touchcancel', (event) => {
setMxMyByTouch(event);
this.mapUp(event);
});
const setMxMyByTouch = (event) => {
if (event.touches.length <= 0) {
return;
}
if (this.canvasLeft == null) {
setParentOffset();
}
this.mx = event.touches[0].pageX - this.canvasLeft;
this.my = event.touches[0].pageY - this.canvasTop;
};
const setParentOffset = () => {
const rect = this.canvas.nativeElement.getBoundingClientRect();
this.canvasLeft = rect.left;
this.canvasTop = rect.top;
};
}
}
IsPC() {
if (window['ELECTRON']) {
return false; // 封装客户端标记
}
if (document.body.ontouchstart !== undefined) {
return false;
} else {
return true;
}
}
checkClickTarget(target) {
const rect = target.getBoundingBox();
if (this.checkPointInRect(this.mx, this.my, rect)) {
return true;
}
return false;
}
checkPointInRect(x, y, rect) {
if (x >= rect.x && x <= rect.x + rect.width) {
if (y >= rect.y && y <= rect.y + rect.height) {
return true;
}
}
return false;
}
saveClick() {
const bgItem = this.bgItem;
if (this.bg) {
bgItem['rect'] = this.bg.getBoundingBox();
} else {
bgItem['rect'] = {x: 0, y: 0, width: Math.round(this.canvasWidth * 100) / 100, height: Math.round(this.canvasHeight * 100) / 100};
}
// const imgItemArr = [];
// const imgArr = this.imgArr;
// for (let i = 0; i < imgArr.length; i++) {
//
// const imgItem = {
// id: imgArr[i].id,
// pic_url: imgArr[i].pic_url,
// audio_url: imgArr[i].audio_url,
// };
// if (imgArr[i].picItem) {
// imgItem['rect'] = imgArr[i].picItem.getBoundingBox();
// imgItem['rect'].x -= bgItem['rect'].x;
// imgItem['rect'].y -= bgItem['rect'].y;
// }
// imgItemArr.push(imgItem);
// }
const hotZoneItemArr = [];
const hotZoneArr = this.hotZoneArr;
for (let i = 0; i < hotZoneArr.length; i++) {
const hotZoneItem = {
index: hotZoneArr[i].index,
};
hotZoneItem['rect'] = hotZoneArr[i].getBoundingBox();
hotZoneItem['rect'].x = Math.round( (hotZoneItem['rect'].x - bgItem['rect'].x) * 100) / 100;
hotZoneItem['rect'].y = Math.round( (hotZoneItem['rect'].y - bgItem['rect'].y) * 100) / 100;
hotZoneItem['rect'].width = Math.round( (hotZoneItem['rect'].width) * 100) / 100;
hotZoneItem['rect'].height = Math.round( (hotZoneItem['rect'].height) * 100) / 100;
hotZoneItemArr.push(hotZoneItem);
}
console.log('hotZoneItemArr: ', hotZoneItemArr);
this.save.emit({bgItem, hotZoneItemArr});
}
}