TableColumn.cs

using SkiaSharp;
using System.Threading.Tasks;
using System.Xml;
using Waher.Reports.Model.Attributes;
using Waher.Things.Queries;
 
namespace Waher.Reports.Files.Model.Actions
{
    public class TableColumn
    {
        private readonly ReportStringAttribute columnId;
        private readonly ReportStringAttribute header;
        private readonly ReportStringAttribute dataSourceId;
        private readonly ReportStringAttribute partition;
        private readonly ReportColorAttribute fgColor;
        private readonly ReportColorAttribute bgColor;
        private readonly ReportEnumAttribute<ColumnAlignment> alignment;
        private readonly ReportByteAttribute nrDecimals;
 
        public TableColumn(XmlElement Xml)
        {
            this.columnId = new ReportStringAttribute(Xml, "columnId");
            this.header = new ReportStringAttribute(Xml, "header");
            this.dataSourceId = new ReportStringAttribute(Xml, "dataSourceId");
            this.partition = new ReportStringAttribute(Xml, "partition");
            this.fgColor = new ReportColorAttribute(Xml, "fgColor");
            this.bgColor = new ReportColorAttribute(Xml, "bgColor");
            this.alignment = new ReportEnumAttribute<ColumnAlignment>(Xml, "alignment");
            this.nrDecimals = new ReportByteAttribute(Xml, "nrDecimals");
        }
 
        public async Task<Column> Evaluate(ReportState State)
        {
            string ColumnId = await this.columnId.Evaluate(State.Variables);
            string Header = await this.header.Evaluate(State.Variables);
            string DataSourceId = await this.dataSourceId.Evaluate(State.Variables);
            string Partition = await this.partition.Evaluate(State.Variables);
            SKColor? FgColor = this.fgColor.IsEmpty ? null : (SKColor?)await this.fgColor.Evaluate(State.Variables);
            SKColor? BgColor = this.bgColor.IsEmpty ? null : (SKColor?)await this.bgColor.Evaluate(State.Variables);
            ColumnAlignment? Alignment = this.alignment.IsEmpty ? null : (ColumnAlignment?)await this.alignment.Evaluate(State.Variables);
            byte? NrDecimals = this.nrDecimals.IsEmpty ? null : (byte?)await this.nrDecimals.Evaluate(State.Variables);
 
            return new Column(ColumnId, Header, DataSourceId, Partition, FgColor, BgColor, Alignment, NrDecimals);
        }
 
    }
}