Add textDirection parameter to PageTheme

 # Changelog
 
+
+## 1.12.0
+
+- Add textDirection parameter to PageTheme
+
 ## 1.11.2
 
 - Fix Table.fromTextArray vertical alignment

@@ -88,6 +88,7 @@ class MultiPage extends Page {
     this.maxPages = 20,
     PageOrientation orientation,
     EdgeInsets margin,
+    TextDirection textDirection,
   })  : _buildList = build,
         assert(mainAxisAlignment != null),
         assert(crossAxisAlignment != null),
@@ -97,7 +98,9 @@ class MultiPage extends Page {
           pageFormat: pageFormat,
           margin: margin,
           theme: theme,
-            orientation: orientation);
+          orientation: orientation,
+          textDirection: textDirection,
+        );
 
   final BuildListCallback _buildList;
 
@@ -168,7 +171,11 @@ class MultiPage extends Page {
     int index = 0;
     int sameCount = 0;
     final Context baseContext =
-        Context(document: document.document).inheritFrom(calculatedTheme);
+        Context(document: document.document).inheritFromAll(<Inherited>[
+      calculatedTheme,
+      if (pageTheme.textDirection != null)
+        InheritedDirectionality(pageTheme.textDirection),
+    ]);
     final List<Widget> children = _buildList(baseContext);
     WidgetContext widgetContext;
 

@@ -24,21 +24,23 @@ typedef BuildListCallback = List<Widget> Function(Context context);
 enum PageOrientation { natural, landscape, portrait }
 
 class Page {
-  Page(
-      {PageTheme pageTheme,
+  Page({
+    PageTheme pageTheme,
     PdfPageFormat pageFormat,
     BuildCallback build,
     ThemeData theme,
     PageOrientation orientation,
     EdgeInsets margin,
-      bool clip = false})
-      : assert(
+    bool clip = false,
+    TextDirection textDirection,
+  })  : assert(
             pageTheme == null ||
                 (pageFormat == null &&
                     theme == null &&
                     orientation == null &&
                     margin == null &&
-                    clip == false),
+                    clip == false &&
+                    textDirection == null),
             'Don\'t set both pageTheme and other settings'),
         pageTheme = pageTheme ??
             PageTheme(
@@ -47,6 +49,7 @@ class Page {
               margin: margin,
               theme: theme,
               clip: clip,
+              textDirection: textDirection,
             ),
         _build = build;
 
@@ -106,7 +109,11 @@ class Page {
       document: document.document,
       page: _pdfPage,
       canvas: canvas,
-    ).inheritFrom(calculatedTheme);
+    ).inheritFromAll(<Inherited>[
+      calculatedTheme,
+      if (pageTheme.textDirection != null)
+        InheritedDirectionality(pageTheme.textDirection),
+    ]);
 
     Widget background;
     Widget content;

@@ -26,6 +26,7 @@ class PageTheme {
     PageOrientation orientation,
     EdgeInsets margin,
     this.clip = false,
+    this.textDirection,
   })  : pageFormat = pageFormat ?? PdfPageFormat.standard,
         orientation = orientation ?? PageOrientation.natural,
         _margin = margin;
@@ -44,6 +45,8 @@ class PageTheme {
 
   final bool clip;
 
+  final TextDirection textDirection;
+
   bool get mustRotate =>
       (orientation == PageOrientation.landscape &&
           pageFormat.height > pageFormat.width) ||
@@ -77,6 +80,7 @@ class PageTheme {
     PageOrientation orientation,
     EdgeInsets margin,
     bool clip,
+    TextDirection textDirection,
   }) =>
       PageTheme(
         pageFormat: pageFormat ?? this.pageFormat,
@@ -86,5 +90,6 @@ class PageTheme {
         orientation: orientation ?? this.orientation,
         margin: margin ?? this.margin,
         clip: clip ?? this.clip,
+        textDirection: textDirection ?? this.textDirection,
       );
 }

@@ -381,7 +381,14 @@ class TextStyle {
       'TextStyle(color:$color font:$font size:$fontSize weight:$fontWeight style:$fontStyle letterSpacing:$letterSpacing wordSpacing:$wordSpacing lineSpacing:$lineSpacing height:$height background:$background decoration:$decoration decorationColor:$decorationColor decorationStyle:$decorationStyle decorationThickness:$decorationThickness, renderingMode:$renderingMode)';
 }
 
-class Directionality extends StatelessWidget implements Inherited {
+class InheritedDirectionality extends Inherited {
+  const InheritedDirectionality(this.textDirection);
+
+  /// The text direction for this subtree.
+  final TextDirection textDirection;
+}
+
+class Directionality extends StatelessWidget {
   /// Creates a widget that determines the directionality of text and
   /// text-direction-sensitive render objects.
   ///
@@ -410,15 +417,16 @@ class Directionality extends StatelessWidget implements Inherited {
   /// TextDirection textDirection = Directionality.of(context);
   /// ```
   static TextDirection of(Context context) {
-    final Directionality widget = context.inherited[Directionality];
-    return widget?.textDirection ?? TextDirection.ltr;
+    final InheritedDirectionality inherited =
+        context.inherited[InheritedDirectionality];
+    return inherited?.textDirection ?? TextDirection.ltr;
   }
 
   @override
   Widget build(Context context) {
     return InheritedWidget(
       build: (Context context) => child,
-      inherited: this,
+      inherited: InheritedDirectionality(textDirection),
     );
   }
 }

@@ -68,9 +68,15 @@ class Context {
   }
 
   Context inheritFrom(Inherited object) {
+    return inheritFromAll(<Inherited>[object]);
+  }
+
+  Context inheritFromAll(Iterable<Inherited> objects) {
     final HashMap<Type, Inherited> inherited =
         HashMap<Type, Inherited>.of(this.inherited);
+    for (final Inherited object in objects) {
       inherited[object.runtimeType] = object;
+    }
     return copyWith(inherited: inherited);
   }
 }

@@ -4,7 +4,7 @@ description: A pdf producer for Dart. It can create pdf files for both web or fl
 homepage: https://github.com/DavBfr/dart_pdf/tree/master/pdf
 repository: https://github.com/DavBfr/dart_pdf
 issue_tracker: https://github.com/DavBfr/dart_pdf/issues
-version: 1.11.2
+version: 1.12.0
 
 environment:
   sdk: ">=2.3.0 <3.0.0"