using DocumentFormat.OpenXml;
using DocumentFormat.OpenXml.Packaging;
using DocumentFormat.OpenXml.Wordprocessing;
using A = DocumentFormat.OpenXml.Drawing;
using DW = DocumentFormat.OpenXml.Drawing.Wordprocessing;
using PIC = DocumentFormat.OpenXml.Drawing.Pictures;

namespace Docx
{
    public static class RysunekDocx
    {
        //https://docs.microsoft.com/en-us/office/open-xml/how-to-insert-a-picture-into-a-word-processing-document
        public static Drawing CreateDrawingElement(this WordprocessingDocument wordDoc, string relationshipId, float widthCoeff, float heightCoeff)
        {
            // Define the reference of the image.
            Drawing element =
                 new Drawing(
                     new DW.Inline(
                         //new DW.Extent() { Cx = 990000L, Cy = 792000L },
                         new DW.Extent() { Cx = (long)(990000L * widthCoeff), Cy = (long)(792000L * heightCoeff) },
                         new DW.EffectExtent()
                         {
                             LeftEdge = 0L,
                             TopEdge = 0L,
                             RightEdge = 0L,
                             BottomEdge = 0L
                         },
                         new DW.DocProperties()
                         {
                             Id = (UInt32Value)1U,
                             Name = "Rysunek"
                         },
                         new DW.NonVisualGraphicFrameDrawingProperties(
                             new A.GraphicFrameLocks() { NoChangeAspect = true }),
                         new A.Graphic(
                             new A.GraphicData(
                                 new PIC.Picture(
                                     new PIC.NonVisualPictureProperties(
                                         new PIC.NonVisualDrawingProperties()
                                         {
                                             Id = (UInt32Value)0U,
                                             Name = "Rysunek"
                                         },
                                         new PIC.NonVisualPictureDrawingProperties()),
                                     new PIC.BlipFill(
                                         new A.Blip(
                                             new A.BlipExtensionList(
                                                 new A.BlipExtension()
                                                 {
                                                     Uri =
                                                        "{28A0092B-C50C-407E-A947-70E740481C1C}"
                                                 })
                                         )
                                         {
                                             Embed = relationshipId,
                                             CompressionState =
                                             A.BlipCompressionValues.Print
                                         },
                                         new A.Stretch(
                                             new A.FillRectangle())),
                                     new PIC.ShapeProperties(
                                         new A.Transform2D(
                                             new A.Offset() { X = 0L, Y = 0L },
                                             //new A.Extents() { Cx = 990000L, Cy = 792000L }),
                                             new A.Extents() { Cx = (long)(990000L * widthCoeff), Cy = (long)(792000L * heightCoeff) }),
                                         new A.PresetGeometry(
                                             new A.AdjustValueList()
                                         )
                                         { Preset = A.ShapeTypeValues.Rectangle }))
                             )
                             { Uri = "http://schemas.openxmlformats.org/drawingml/2006/picture" })
                     )
                     {
                         DistanceFromTop = (UInt32Value)0U,
                         DistanceFromBottom = (UInt32Value)0U,
                         DistanceFromLeft = (UInt32Value)0U,
                         DistanceFromRight = (UInt32Value)0U,
                         EditId = "50D07946"
                     });

            return element;
        }
    }
}