//
// This code is part of Document Solutions for Word demos.
// Copyright (c) MESCIUS inc. All rights reserved.
//
using System;
using System.IO;
using System.Drawing;
using System.Collections.Generic;
using System.Linq;
using System.Globalization;
using GrapeCity.Documents.Word;

namespace DsWordWeb.Demos
{
    // This example demonstrates the available math functions
    // that can be used with the 'calc' report templates feature.
    public class DataTplCalcMath
    {
        public GcWordDocument CreateDocx()
        {
            // A simple data source to be used by the math functions:
            var data = new double[] { Math.PI };

            var doc = new GcWordDocument();

            // Add the data source:
            doc.DataTemplate.DataSources.Add("ds", data);

            // Styles and templates to show results:
            var bulletListTemplate = doc.ListTemplates.Add(BuiltInListTemplateId.BulletDefault, "bulletListTemplate");
            var exStyle = doc.Styles[BuiltInStyleId.Heading3];
            var resStyle = doc.Styles[BuiltInStyleId.Strong];

            var paras = doc.Body.Paragraphs;
            add("{{ ds.value }}");
            add("{{ calc Abs(-ds.value) }}");
            add("{{ calc Round(ds.value, 2) }}");
            add("{{ calc Acos(ds.value) }}");
            add("{{ calc Asin(ds.value) }}");
            add("{{ calc Atan(ds.value) }}");
            add("{{ calc Atan2(ds.value, 1) }}");
            add("{{ calc Ceiling(ds.value) }}");
            add("{{ calc Cos(ds.value) }}");
            add("{{ calc Cosh(ds.value) }}");
            add("{{ calc Exp(ds.value) }}");
            add("{{ calc Floor(ds.value) }}");
            add("{{ calc Log10(ds.value) }}");
            add("{{ calc Log(ds.value) }}");
            add("{{ calc Log(ds.value, 10) }}");
            add("{{ calc Pow(ds.value, 2) }}");
            add("{{ calc Rand() }}");
            add("{{ calc RandBetween(0, 100) }}");
            add("{{ calc Sign(ds.value) }}");
            add("{{ calc Sin(ds.value) }}");
            add("{{ calc Sinh(ds.value) }}");
            add("{{ calc Sqrt(ds.value) }}");
            add("{{ calc Tan(ds.value) }}");
            add("{{ calc Tanh(ds.value) }}");

            // Process the templates:
            doc.DataTemplate.Process(CultureInfo.GetCultureInfo("en-US"));

            // Add a short note describing the demo at the top of the document:
            paras.Insert(
                "This example demonstrates the available math functions " +
                "that can be used with the 'calc' report templates feature. " +
                "Please see this sample source code for full details.",
                InsertLocation.Start);
            paras.Insert("Report templates: available calc math functions", doc.Styles[BuiltInStyleId.Heading1], InsertLocation.Start);

            // Done:
            return doc;

            void add(string expr)
            {
                // \x200B is a zero-width space used to prevent template expansion:
                paras.Add(expr.Insert(1, "​​​\x200B") + " :  ", exStyle).ListFormat.Template = bulletListTemplate;
                paras.Last.GetRange().Runs.Add(expr, resStyle);
            }
        }
    }
}