angular-cesium
Version:
Angular library for working with Cesium.
109 lines • 12.4 kB
JavaScript
export class OptimizedEntityCollection {
constructor(entityCollection, collectionSize = -1, updateRate = -1) {
this.entityCollection = entityCollection;
this._isSuspended = false;
this._isHardSuspend = false;
this._updateRate = updateRate;
this._collectionSize = collectionSize;
}
setShow(show) {
this.entityCollection.show = show;
}
get isSuspended() {
return this._isSuspended;
}
get updateRate() {
return this._updateRate;
}
set updateRate(value) {
this._updateRate = value;
}
get collectionSize() {
return this._collectionSize;
}
set collectionSize(value) {
this._collectionSize = value;
}
collection() {
return this.entityCollection;
}
isFree() {
return this._collectionSize < 1 || this.entityCollection.values.length < this._collectionSize;
}
add(entity) {
this.suspend();
return this.entityCollection.add(entity);
}
remove(entity) {
this.suspend();
return this.entityCollection.remove(entity);
}
removeNoSuspend(entity) {
this.entityCollection.remove(entity);
}
removeAll() {
this.suspend();
this.entityCollection.removeAll();
}
onEventSuspension(callback, once = false) {
this._onEventSuspensionCallback = { callback, once };
return () => {
this._onEventSuspensionCallback = undefined;
};
}
onEventResume(callback, once = false) {
this._onEventResumeCallback = { callback, once };
if (!this._isSuspended) {
this.triggerEventResume();
}
return () => {
this._onEventResumeCallback = undefined;
};
}
triggerEventSuspension() {
if (this._onEventSuspensionCallback !== undefined) {
const callback = this._onEventSuspensionCallback.callback;
if (this._onEventSuspensionCallback.once) {
this._onEventSuspensionCallback = undefined;
}
callback();
}
}
triggerEventResume() {
if (this._onEventResumeCallback !== undefined) {
const callback = this._onEventResumeCallback.callback;
if (this._onEventResumeCallback.once) {
this._onEventResumeCallback = undefined;
}
callback();
}
}
suspend() {
if (this._updateRate < 0) {
return;
}
if (this._isHardSuspend) {
return;
}
if (!this._isSuspended) {
this._isSuspended = true;
this.entityCollection.suspendEvents();
this.triggerEventSuspension();
this._suspensionTimeout = setTimeout(() => {
this.entityCollection.resumeEvents();
this.triggerEventResume();
this._isSuspended = false;
this._suspensionTimeout = undefined;
}, this._updateRate);
}
}
hardSuspend() {
this.entityCollection.suspendEvents();
this._isHardSuspend = true;
}
hardResume() {
this.entityCollection.resumeEvents();
this._isHardSuspend = false;
}
}
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class OptimizedEntityCollection {\r\n  private _updateRate: number;\r\n  private _collectionSize: number;\r\n  private _isSuspended = false;\r\n  private _isHardSuspend = false;\r\n  private _suspensionTimeout: any;\r\n  private _onEventSuspensionCallback: { once: boolean, callback: Function };\r\n  private _onEventResumeCallback: { once: boolean, callback: Function };\r\n\r\n  constructor(private entityCollection: any, collectionSize = -1, updateRate = -1) {\r\n    this._updateRate = updateRate;\r\n    this._collectionSize = collectionSize;\r\n\r\n  }\r\n\r\n  setShow(show: boolean) {\r\n    this.entityCollection.show = show;\r\n  }\r\n\r\n  get isSuspended(): boolean {\r\n    return this._isSuspended;\r\n  }\r\n\r\n  get updateRate(): number {\r\n    return this._updateRate;\r\n  }\r\n\r\n  set updateRate(value: number) {\r\n    this._updateRate = value;\r\n  }\r\n\r\n  get collectionSize(): number {\r\n    return this._collectionSize;\r\n  }\r\n\r\n  set collectionSize(value: number) {\r\n    this._collectionSize = value;\r\n  }\r\n\r\n  collection() {\r\n    return this.entityCollection;\r\n  }\r\n\r\n  isFree(): boolean {\r\n    return this._collectionSize < 1 || this.entityCollection.values.length < this._collectionSize;\r\n  }\r\n\r\n  add(entity: any) {\r\n    this.suspend();\r\n    return this.entityCollection.add(entity);\r\n  }\r\n\r\n  remove(entity: any) {\r\n    this.suspend();\r\n    return this.entityCollection.remove(entity);\r\n  }\r\n\r\n  removeNoSuspend(entity: any) {\r\n    this.entityCollection.remove(entity);\r\n  }\r\n\r\n  removeAll() {\r\n    this.suspend();\r\n    this.entityCollection.removeAll();\r\n  }\r\n\r\n  onEventSuspension(callback: Function, once = false): Function {\r\n    this._onEventSuspensionCallback = {callback, once};\r\n    return () => {\r\n      this._onEventSuspensionCallback = undefined;\r\n    };\r\n  }\r\n\r\n  onEventResume(callback: Function, once = false): Function {\r\n    this._onEventResumeCallback = {callback, once};\r\n    if (!this._isSuspended) {\r\n      this.triggerEventResume();\r\n    }\r\n    return () => {\r\n      this._onEventResumeCallback = undefined;\r\n    };\r\n  }\r\n\r\n  triggerEventSuspension() {\r\n    if (this._onEventSuspensionCallback !== undefined) {\r\n      const callback = this._onEventSuspensionCallback.callback;\r\n      if (this._onEventSuspensionCallback.once) {\r\n        this._onEventSuspensionCallback = undefined;\r\n      }\r\n      callback();\r\n    }\r\n  }\r\n\r\n  triggerEventResume() {\r\n    if (this._onEventResumeCallback !== undefined) {\r\n      const callback = this._onEventResumeCallback.callback;\r\n      if (this._onEventResumeCallback.once) {\r\n        this._onEventResumeCallback = undefined;\r\n      }\r\n      callback();\r\n    }\r\n  }\r\n\r\n  public suspend() {\r\n    if (this._updateRate < 0) {\r\n      return;\r\n    }\r\n    if (this._isHardSuspend) {\r\n      return;\r\n    }\r\n    if (!this._isSuspended) {\r\n      this._isSuspended = true;\r\n      this.entityCollection.suspendEvents();\r\n      this.triggerEventSuspension();\r\n      this._suspensionTimeout = setTimeout(() => {\r\n        this.entityCollection.resumeEvents();\r\n        this.triggerEventResume();\r\n        this._isSuspended = false;\r\n        this._suspensionTimeout = undefined;\r\n      }, this._updateRate);\r\n    }\r\n  }\r\n\r\n  public hardSuspend() {\r\n    this.entityCollection.suspendEvents();\r\n    this._isHardSuspend = true;\r\n  }\r\n\r\n  public hardResume() {\r\n    this.entityCollection.resumeEvents();\r\n    this._isHardSuspend = false;\r\n  }\r\n\r\n}\r\n"]}