using System.Collections.Generic;
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using System.Linq;
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using System.Xml.Linq;
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using System.IO.Packaging;
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namespace Novacode
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{
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/// <summary>
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/// Represents a Picture in this document, a Picture is a customized view of an Image.
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/// </summary>
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public class Picture: DocXElement
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{
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private const int EmusInPixel = 9525;
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internal Dictionary<PackagePart, PackageRelationship> picture_rels;
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internal Image img;
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private string id;
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private string name;
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private string descr;
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private int cx, cy;
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//private string fileName;
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private uint rotation;
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private bool hFlip, vFlip;
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private object pictureShape;
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private XElement xfrm;
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private XElement prstGeom;
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/// <summary>
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/// Remove this Picture from this document.
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/// </summary>
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public void Remove()
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{
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Xml.Remove();
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}
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/// <summary>
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/// Wraps an XElement as an Image
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/// </summary>
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/// <param name="i">The XElement i to wrap</param>
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internal Picture(DocX document, XElement i, Image img):base(document, i)
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{
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picture_rels = new Dictionary<PackagePart, PackageRelationship>();
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this.img = img;
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this.id =
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(
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from e in Xml.Descendants()
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where e.Name.LocalName.Equals("blip")
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select e.Attribute(XName.Get("embed", "http://schemas.openxmlformats.org/officeDocument/2006/relationships")).Value
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).Single();
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this.name =
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(
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from e in Xml.Descendants()
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let a = e.Attribute(XName.Get("name"))
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where (a != null)
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select a.Value
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).First();
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this.descr =
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(
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from e in Xml.Descendants()
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let a = e.Attribute(XName.Get("descr"))
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where (a != null)
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select a.Value
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).FirstOrDefault();
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this.cx =
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(
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from e in Xml.Descendants()
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let a = e.Attribute(XName.Get("cx"))
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where (a != null)
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select int.Parse(a.Value)
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).First();
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this.cy =
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(
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from e in Xml.Descendants()
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let a = e.Attribute(XName.Get("cy"))
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where (a != null)
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select int.Parse(a.Value)
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).First();
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this.xfrm =
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(
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from d in Xml.Descendants()
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where d.Name.LocalName.Equals("xfrm")
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select d
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).Single();
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this.prstGeom =
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(
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from d in Xml.Descendants()
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where d.Name.LocalName.Equals("prstGeom")
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select d
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).Single();
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this.rotation = xfrm.Attribute(XName.Get("rot")) == null ? 0 : uint.Parse(xfrm.Attribute(XName.Get("rot")).Value);
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}
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private void SetPictureShape(object shape)
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{
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this.pictureShape = shape;
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XAttribute prst = prstGeom.Attribute(XName.Get("prst"));
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if (prst == null)
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prstGeom.Add(new XAttribute(XName.Get("prst"), "rectangle"));
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prstGeom.Attribute(XName.Get("prst")).Value = shape.ToString();
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}
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/// <summary>
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/// Set the shape of this Picture to one in the BasicShapes enumeration.
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/// </summary>
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/// <param name="shape">A shape from the BasicShapes enumeration.</param>
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public void SetPictureShape(BasicShapes shape)
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{
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SetPictureShape((object)shape);
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}
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/// <summary>
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/// Set the shape of this Picture to one in the RectangleShapes enumeration.
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/// </summary>
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/// <param name="shape">A shape from the RectangleShapes enumeration.</param>
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public void SetPictureShape(RectangleShapes shape)
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{
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SetPictureShape((object)shape);
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}
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/// <summary>
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/// Set the shape of this Picture to one in the BlockArrowShapes enumeration.
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/// </summary>
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/// <param name="shape">A shape from the BlockArrowShapes enumeration.</param>
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public void SetPictureShape(BlockArrowShapes shape)
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{
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SetPictureShape((object)shape);
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}
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/// <summary>
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/// Set the shape of this Picture to one in the EquationShapes enumeration.
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/// </summary>
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/// <param name="shape">A shape from the EquationShapes enumeration.</param>
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public void SetPictureShape(EquationShapes shape)
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{
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SetPictureShape((object)shape);
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}
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/// <summary>
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/// Set the shape of this Picture to one in the FlowchartShapes enumeration.
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/// </summary>
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/// <param name="shape">A shape from the FlowchartShapes enumeration.</param>
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public void SetPictureShape(FlowchartShapes shape)
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{
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SetPictureShape((object)shape);
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}
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/// <summary>
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/// Set the shape of this Picture to one in the StarAndBannerShapes enumeration.
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/// </summary>
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/// <param name="shape">A shape from the StarAndBannerShapes enumeration.</param>
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public void SetPictureShape(StarAndBannerShapes shape)
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{
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SetPictureShape((object)shape);
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}
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/// <summary>
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/// Set the shape of this Picture to one in the CalloutShapes enumeration.
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/// </summary>
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/// <param name="shape">A shape from the CalloutShapes enumeration.</param>
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public void SetPictureShape(CalloutShapes shape)
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{
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SetPictureShape((object)shape);
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}
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/// <summary>
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/// A unique id that identifies an Image embedded in this document.
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/// </summary>
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public string Id
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{
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get { return id; }
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}
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/// <summary>
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/// Flip this Picture Horizontally.
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/// </summary>
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public bool FlipHorizontal
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{
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get { return hFlip; }
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set
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{
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hFlip = value;
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XAttribute flipH = xfrm.Attribute(XName.Get("flipH"));
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if (flipH == null)
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xfrm.Add(new XAttribute(XName.Get("flipH"), "0"));
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xfrm.Attribute(XName.Get("flipH")).Value = hFlip ? "1" : "0";
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}
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}
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/// <summary>
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/// Flip this Picture Vertically.
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/// </summary>
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public bool FlipVertical
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{
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get { return vFlip; }
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set
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{
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vFlip = value;
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XAttribute flipV = xfrm.Attribute(XName.Get("flipV"));
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if (flipV == null)
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xfrm.Add(new XAttribute(XName.Get("flipV"), "0"));
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xfrm.Attribute(XName.Get("flipV")).Value = vFlip ? "1" : "0";
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}
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}
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/// <summary>
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/// The rotation in degrees of this image, actual value = value % 360
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/// </summary>
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public uint Rotation
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{
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get { return rotation / 60000; }
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set
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{
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rotation = (value % 360) * 60000;
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XElement xfrm =
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(from d in Xml.Descendants()
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where d.Name.LocalName.Equals("xfrm")
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select d).Single();
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XAttribute rot = xfrm.Attribute(XName.Get("rot"));
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if(rot == null)
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xfrm.Add(new XAttribute(XName.Get("rot"), 0));
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xfrm.Attribute(XName.Get("rot")).Value = rotation.ToString();
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}
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}
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/// <summary>
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/// Gets or sets the name of this Image.
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/// </summary>
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public string Name
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{
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get { return name; }
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set
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{
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name = value;
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foreach (XAttribute a in Xml.Descendants().Attributes(XName.Get("name")))
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a.Value = name;
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}
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}
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/// <summary>
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/// Gets or sets the description for this Image.
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/// </summary>
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public string Description
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{
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get { return descr; }
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set
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{
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descr = value;
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foreach (XAttribute a in Xml.Descendants().Attributes(XName.Get("descr")))
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a.Value = descr;
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}
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}
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///<summary>
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/// Returns the name of the image file for the picture.
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///</summary>
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public string FileName
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{
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get
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{
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return img.FileName;
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}
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}
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/// <summary>
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/// Get or sets the Width of this Image.
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/// </summary>
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public int Width
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{
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get { return cx / EmusInPixel; }
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set
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{
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cx = value;
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foreach (XAttribute a in Xml.Descendants().Attributes(XName.Get("cx")))
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a.Value = (cx * EmusInPixel).ToString();
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}
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}
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/// <summary>
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/// Get or sets the height of this Image.
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/// </summary>
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public int Height
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{
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get { return cy / EmusInPixel; }
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set
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{
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cy = value;
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foreach (XAttribute a in Xml.Descendants().Attributes(XName.Get("cy")))
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a.Value = (cy * EmusInPixel).ToString();
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}
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}
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//public void Delete()
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//{
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// // Remove xml
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// i.Remove();
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// // Rebuild the image collection for this paragraph
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// // Requires that every Image have a link to its paragraph
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//}
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}
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}
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