createExpressionStaticDivides static method

List<NamedLine> createExpressionStaticDivides(Expression staticExpr, double count, { (DIRECTION_ENUM, Size)? infinitySample, NamedLine? fromStartLine, NamedLine? toEndLine, END_POINT endPoint = END_POINT.exclude_start_end, })

Implementation

static List<NamedLine> createExpressionStaticDivides(Expression staticExpr, double count, {(DIRECTION_ENUM, Size)? infinitySample,
  NamedLine? fromStartLine,
  NamedLine? toEndLine,
  END_POINT endPoint = END_POINT.exclude_start_end}){
  assert(count != double.infinity || infinitySample != null);
  NamedLine fromStart = fromStartLine ?? NamedLine.percent(0.0, name: NAME_START);
  NamedLine toEnd = toEndLine ?? NamedLine.percent(1.0, name: NAME_END);
  if(count == double.infinity){
    switch(infinitySample!.$1){
      case DIRECTION_ENUM.vertical:
        count = ((toEnd - fromStart) as Expression).verticalWidthMergeLiteral(PxUnit.wpc)(infinitySample.$2).$1 / staticExpr.verticalWidthMergeLiteral(PxUnit.wpc)(infinitySample.$2).$1;
        break;
      case DIRECTION_ENUM.horizontal:
        count = ((toEnd - fromStart) as Expression).horizontalHeightMergeLiteral(PxUnit.hpc)(infinitySample.$2).$1 / staticExpr.horizontalHeightMergeLiteral(PxUnit.hpc)(infinitySample.$2).$1;
    }
  }
  List<NamedLine> excludeStartEnd = List.generate(count.floor(), (index){
    var plusExpr = fromStart + staticExpr * (index + 1);
    return NamedLine.expression(plusExpr, name: '$STATIC_DIVIDES-${index+1}');
  });

  return [
    if(endPoint == END_POINT.include_start_only || endPoint == END_POINT.include_start_end)
      NamedLine.rename(rename: '$STATIC_DIVIDES-$NAME_START', copy: fromStart),
    ...excludeStartEnd,
    if(endPoint == END_POINT.include_end_only || endPoint == END_POINT.include_start_end)
      NamedLine.rename(rename: '$STATIC_DIVIDES-$NAME_END', copy: toEnd),
  ];
}