如何使用OpenXML在powerpoint幻燈片中插入形狀

Question

這個問題看似相當基本，但如何在c＃中使用OpenXML在幻燈片中插入形狀（即矩形）？

我四處搜索，我看到的只是“創建一個帶有形狀的幻燈片，並使用SDK生產力工具來反映代碼。這不是真的有用:(

Answer 1

在我的頭靠在牆上一段時間之后，最后我接受了建議，創建了一個帶有形狀的幻燈片並使用該工具來反映代碼。 因此，對於下一代，這里有一個簡要的解釋，說明如何手動完成。

你必須要知道的是，一個形狀插入到ShapeTree中，它是CommonSlideData的一部分：

Slide s = GetDesiredSlide(); // Get the slide where you want to insert the shape.
s.CommonSlideData.ShapeTree.Append(GenerateShape());

其次你應該知道一個形狀必須包含至少4個描述其行為的孩子：

• 一個ShapeStyle對象
• 一個ShapeProperties對象
• TextBody對象
• NonVisualShapeProperties

在下面的示例代碼中，我使用以下命名空間和變量：

using System;
using System.Collections.Generic;
using System.Linq;
using DocumentFormat.OpenXml;
using DocumentFormat.OpenXml.Packaging;
using DocumentFormat.OpenXml.Presentation;
using D = DocumentFormat.OpenXml.Drawing;

D.ShapeTypeValues shapeType; // Any of the built-in shapes (ellipse, rectangle, etc)
string rgbColorHex; // Hexadecimal RGB color code to fill the shape.
long x; // Represents the shape x position in 1/36000 cm.
long y; // Represents the shape y position in 1/36000 cm.
long width; // Shapw width in in 1/36000 cm.
long heigth;// Shapw heigth in in 1/36000 cm.

ShapeStyle對象

形狀樣式對象描述一般形狀樣式屬性，如邊框，填充樣式，文本字體和視覺效果（陰影等）

ShapeStyle shapeStyle1 = new ShapeStyle();

D.LineReference lineReference1 = new D.LineReference() { Index = (UInt32Value)2U };

D.SchemeColor schemeColor2 = new D.SchemeColor() { Val = D.SchemeColorValues.Accent1 };
D.Shade shade1 = new D.Shade() { Val = 50000 };

schemeColor2.Append(shade1);

lineReference1.Append(schemeColor2);

D.FillReference fillReference1 = new D.FillReference() { Index = (UInt32Value)1U };
D.SchemeColor schemeColor3 = new D.SchemeColor() { Val = D.SchemeColorValues.Accent1 };

fillReference1.Append(schemeColor3);

D.EffectReference effectReference1 = new D.EffectReference() { Index = (UInt32Value)0U };
D.SchemeColor schemeColor4 = new D.SchemeColor() { Val = D.SchemeColorValues.Accent1 };

effectReference1.Append(schemeColor4);

D.FontReference fontReference1 = new D.FontReference() { Index = D.FontCollectionIndexValues.Minor };
D.SchemeColor schemeColor5 = new D.SchemeColor() { Val = D.SchemeColorValues.Light1 };

fontReference1.Append(schemeColor5);

shapeStyle1.Append(lineReference1);
shapeStyle1.Append(fillReference1);
shapeStyle1.Append(effectReference1);
shapeStyle1.Append(fontReference1);

ShapeProperties

定義形狀的視覺屬性，如填充方法（實體，漸變等）幾何（大小，位置，翻轉，旋轉）填充和輪廓。

ShapeProperties shapeProperties1 = new ShapeProperties();

D.Transform2D transform2D1 = new D.Transform2D();
D.Offset offset1 = new D.Offset() { X = x, Y = y };
D.Extents extents1 = new D.Extents() { Cx = width, Cy = heigth };

transform2D1.Append(offset1);
transform2D1.Append(extents1);

D.PresetGeometry presetGeometry1 = new D.PresetGeometry() { Preset = shapeType };
D.AdjustValueList adjustValueList1 = new D.AdjustValueList();

presetGeometry1.Append(adjustValueList1);

D.SolidFill solidFill1 = new D.SolidFill();
D.RgbColorModelHex rgbColorModelHex1 = new D.RgbColorModelHex() { Val = rgbColorHex };

solidFill1.Append(rgbColorModelHex1);

D.Outline outline1 = new D.Outline() { Width = 12700 };

D.SolidFill solidFill2 = new D.SolidFill();
D.SchemeColor schemeColor1 = new D.SchemeColor() { Val = D.SchemeColorValues.Text1 };

solidFill2.Append(schemeColor1);

outline1.Append(solidFill2);

shapeProperties1.Append(transform2D1);
shapeProperties1.Append(presetGeometry1);
shapeProperties1.Append(solidFill1);
shapeProperties1.Append(outline1);

的TextBody

定義文本框屬性，如列數，對齊方式，錨定等。

TextBody textBody1 = new TextBody();
D.BodyProperties bodyProperties1 = new D.BodyProperties() { RightToLeftColumns = false, Anchor = D.TextAnchoringTypeValues.Center };
D.ListStyle listStyle1 = new D.ListStyle();

D.Paragraph paragraph1 = new D.Paragraph();
D.ParagraphProperties paragraphProperties1 = new D.ParagraphProperties() { Alignment = D.TextAlignmentTypeValues.Center };
D.EndParagraphRunProperties endParagraphRunProperties1 = new D.EndParagraphRunProperties() { Language = "es-ES" };

paragraph1.Append(paragraphProperties1);
paragraph1.Append(endParagraphRunProperties1);

textBody1.Append(bodyProperties1);
textBody1.Append(listStyle1);
textBody1.Append(paragraph1);

NonVisualShapeProperties

定義非可視屬性，如Name和Id。

NonVisualShapeProperties nonVisualShapeProperties1 = new NonVisualShapeProperties();
NonVisualDrawingProperties nonVisualDrawingProperties1 = new NonVisualDrawingProperties() { Id = (UInt32Value)4U, Name = "1 Shape Name" };
NonVisualShapeDrawingProperties nonVisualShapeDrawingProperties1 = new NonVisualShapeDrawingProperties();
ApplicationNonVisualDrawingProperties applicationNonVisualDrawingProperties1 = new ApplicationNonVisualDrawingProperties();

nonVisualShapeProperties1.Append(nonVisualDrawingProperties1);
nonVisualShapeProperties1.Append(nonVisualShapeDrawingProperties1);
nonVisualShapeProperties1.Append(applicationNonVisualDrawingProperties1);

全部放在一起

最后，您必須創建形狀對象並將這些屬性附加到它：

Shape shape1 = new Shape();
shape1.Append(nonVisualShapeProperties1);
shape1.Append(shapeProperties1);
shape1.Append(shapeStyle1);
shape1.Append(textBody1);

然后，將形狀添加到幻燈片的形狀樹中：

s.CommonSlideData.ShapeTree.Append(shape1);