angular-cesium
Version:
Angular library for working with Cesium.
109 lines • 11.9 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 {\n  private _updateRate: number;\n  private _collectionSize: number;\n  private _isSuspended = false;\n  private _isHardSuspend = false;\n  private _suspensionTimeout: any;\n  private _onEventSuspensionCallback: { once: boolean, callback: Function };\n  private _onEventResumeCallback: { once: boolean, callback: Function };\n\n  constructor(private entityCollection: any, collectionSize = -1, updateRate = -1) {\n    this._updateRate = updateRate;\n    this._collectionSize = collectionSize;\n\n  }\n\n  setShow(show: boolean) {\n    this.entityCollection.show = show;\n  }\n\n  get isSuspended(): boolean {\n    return this._isSuspended;\n  }\n\n  get updateRate(): number {\n    return this._updateRate;\n  }\n\n  set updateRate(value: number) {\n    this._updateRate = value;\n  }\n\n  get collectionSize(): number {\n    return this._collectionSize;\n  }\n\n  set collectionSize(value: number) {\n    this._collectionSize = value;\n  }\n\n  collection() {\n    return this.entityCollection;\n  }\n\n  isFree(): boolean {\n    return this._collectionSize < 1 || this.entityCollection.values.length < this._collectionSize;\n  }\n\n  add(entity: any) {\n    this.suspend();\n    return this.entityCollection.add(entity);\n  }\n\n  remove(entity: any) {\n    this.suspend();\n    return this.entityCollection.remove(entity);\n  }\n\n  removeNoSuspend(entity: any) {\n    this.entityCollection.remove(entity);\n  }\n\n  removeAll() {\n    this.suspend();\n    this.entityCollection.removeAll();\n  }\n\n  onEventSuspension(callback: Function, once = false): Function {\n    this._onEventSuspensionCallback = {callback, once};\n    return () => {\n      this._onEventSuspensionCallback = undefined;\n    };\n  }\n\n  onEventResume(callback: Function, once = false): Function {\n    this._onEventResumeCallback = {callback, once};\n    if (!this._isSuspended) {\n      this.triggerEventResume();\n    }\n    return () => {\n      this._onEventResumeCallback = undefined;\n    };\n  }\n\n  triggerEventSuspension() {\n    if (this._onEventSuspensionCallback !== undefined) {\n      const callback = this._onEventSuspensionCallback.callback;\n      if (this._onEventSuspensionCallback.once) {\n        this._onEventSuspensionCallback = undefined;\n      }\n      callback();\n    }\n  }\n\n  triggerEventResume() {\n    if (this._onEventResumeCallback !== undefined) {\n      const callback = this._onEventResumeCallback.callback;\n      if (this._onEventResumeCallback.once) {\n        this._onEventResumeCallback = undefined;\n      }\n      callback();\n    }\n  }\n\n  public suspend() {\n    if (this._updateRate < 0) {\n      return;\n    }\n    if (this._isHardSuspend) {\n      return;\n    }\n    if (!this._isSuspended) {\n      this._isSuspended = true;\n      this.entityCollection.suspendEvents();\n      this.triggerEventSuspension();\n      this._suspensionTimeout = setTimeout(() => {\n        this.entityCollection.resumeEvents();\n        this.triggerEventResume();\n        this._isSuspended = false;\n        this._suspensionTimeout = undefined;\n      }, this._updateRate);\n    }\n  }\n\n  public hardSuspend() {\n    this.entityCollection.suspendEvents();\n    this._isHardSuspend = true;\n  }\n\n  public hardResume() {\n    this.entityCollection.resumeEvents();\n    this._isHardSuspend = false;\n  }\n\n}\n"]}