view src/app/visualisations/grid/grid.component.ts @ 394:f45a916eb5b1

Use the cross hair layer for notes, tracks and curve. This involved bodging in unit to ShapedFeatureData, which isn't particularly easy to do because this isn't an encapsulated type. Need to come back to improving this, as I am monkey-patching a unit property onto Arrays etc.

/**
 * Created by lucast on 31/05/2017.
 */
import {WavesComponent} from '../waves-base.component';
import {
  ChangeDetectionStrategy,
  Component,
  Input,
} from '@angular/core';
import Waves from 'waves-ui-piper';
import {MatrixFeature} from 'piper/HigherLevelUtilities';
import {iceMapper} from '../../spectrogram/ColourMap';
import {estimatePercentile} from '../../spectrogram/MatrixUtils';

@Component({
  selector: 'ugly-grid',
  templateUrl: '../waves-template.html',
  styleUrls: ['../waves-template.css'],
  changeDetection: ChangeDetectionStrategy.OnPush
})
export class GridComponent extends WavesComponent<MatrixFeature> {

  @Input() set grid(grid: MatrixFeature) {
    this.feature = grid;
  }

  protected get featureLayers(): Layer[] {
    const startTime = this.feature.startTime; // !!! + make use of
    const stepDuration = this.feature.stepDuration;
    const matrixData = this.feature.data;

    if (matrixData.length === 0) {
      return [];
    }

    const targetValue = estimatePercentile(matrixData, 95);
    const gain = (targetValue > 0.0 ? (1.0 / targetValue) : 1.0);
    const matrixEntity = new Waves.utils.PrefilledMatrixEntity(
      matrixData,
      0, // startTime
      stepDuration
    );

    return [
      new Waves.helpers.MatrixLayer(
        matrixEntity,
        {
          gain: gain,
          height: this.height,
          normalise: 'none',
          mapper: iceMapper()
        }
      )
    ];
  }
}