add line numbers to section

src/file/document/body/section-properties/line-number/index.ts

@@ -0,0 +1 @@
+export * from "./line-number";

src/file/document/body/section-properties/line-number/line-number.ts

@@ -0,0 +1,38 @@
+// http://officeopenxml.com/WPsectionLineNumbering.php
+import { XmlAttributeComponent, XmlComponent } from "file/xml-components";
+
+export enum LineNumberRestartFormat {
+    CONTINUOUS = "continuous",
+    NEW_SECTION = "newSection",
+    NEW_PAGE = "newPage",
+}
+
+export interface ILineNumberAttributes {
+    readonly lineNumberCountBy?: number;
+    readonly lineNumberStart?: number;
+    readonly lineNumberRestart?: LineNumberRestartFormat;
+    readonly lineNumberDistance?: number;
+}
+
+export class LineNumberAttributes extends XmlAttributeComponent<ILineNumberAttributes> {
+    protected readonly xmlKeys = {
+        lineNumberCountBy: "w:countBy",
+        lineNumberStart: "w:start",
+        lineNumberRestart: "w:restart",
+        lineNumberDistance: "w:distance",
+    };
+}
+
+export class LineNumberType extends XmlComponent {
+    constructor(countBy?: number, start?: number, restart?: LineNumberRestartFormat, dist?: number) {
+        super("w:lnNumType");
+        this.root.push(
+            new LineNumberAttributes({
+                lineNumberCountBy: countBy,
+                lineNumberStart: start,
+                lineNumberRestart: restart,
+                lineNumberDistance: dist,
+            }),
+        );
+    }
+}

src/file/document/body/section-properties/section-properties.ts

@@ -15,6 +15,7 @@ import { IPageBordersOptions, PageBorders } from "./page-border";
 import { PageMargin } from "./page-margin/page-margin";
 import { IPageMarginAttributes } from "./page-margin/page-margin-attributes";
 import { IPageNumberTypeAttributes, PageNumberType } from "./page-number";
+import { ILineNumberAttributes, LineNumberType } from "./line-number";
 import { PageSize } from "./page-size/page-size";
 import { IPageSizeAttributes, PageOrientation } from "./page-size/page-size-attributes";
 import { TitlePage } from "./title-page/title-page";
@@ -44,6 +45,7 @@ export type SectionPropertiesOptions = IPageSizeAttributes &
     IHeadersOptions &
     IFootersOptions &
     IPageNumberTypeAttributes &
+    ILineNumberAttributes &
     IPageBordersOptions &
     ITitlePageOptions;
 
@@ -71,6 +73,10 @@ export class SectionProperties extends XmlComponent {
             footers,
             pageNumberFormatType,
             pageNumberStart,
+            lineNumberCountBy,
+            lineNumberStart,
+            lineNumberRestart,
+            lineNumberDistance,
             pageBorders,
             pageBorderTop,
             pageBorderRight,
@@ -92,6 +98,10 @@ export class SectionProperties extends XmlComponent {
             this.root.push(new PageNumberType(pageNumberStart, pageNumberFormatType));
         }
 
+        if (lineNumberCountBy || lineNumberStart || lineNumberRestart || lineNumberDistance) {
+            this.root.push(new LineNumberType(lineNumberCountBy, lineNumberStart, lineNumberRestart, lineNumberDistance));
+        }
+
         if (pageBorders || pageBorderTop || pageBorderRight || pageBorderBottom || pageBorderLeft) {
             this.root.push(
                 new PageBorders({