Fix Page orientation

@@ -10,6 +10,7 @@
 - Format Java code
 - Add optional clipping on Page
 - Add Footer Widget
+- Fix Page orientation
 
 ## 1.3.23
 

@@ -90,8 +90,10 @@ class MultiPage extends Page {
         ..saveContext()
         ..setTransform(Matrix4.identity()
           ..rotateZ(-math.pi / 2)
-          ..translate(x - pageHeight + _margin.top - _margin.left,
-              y + _margin.left - _margin.bottom));
+          ..translate(
+            x - pageHeight + _margin.top - _margin.left,
+            y + _margin.left - _margin.bottom,
+          ));
 
       child.paint(context);
       context.canvas.restoreContext();

@@ -170,14 +170,14 @@ class Page {
 
     if (mustRotate) {
       final EdgeInsets _margin = margin;
-      final Matrix4 mat = Matrix4.identity();
-      mat
-        ..rotateZ(-math.pi / 2)
-        ..translate(-pageFormat.height - _margin.left + _margin.top,
-            child.box.height - child.box.width + _margin.left - _margin.bottom);
       context.canvas
         ..saveContext()
-        ..setTransform(mat);
+        ..setTransform(Matrix4.identity()
+          ..rotateZ(-math.pi / 2)
+          ..translate(
+            -pageFormat.height - _margin.left + _margin.top,
+            -pageFormat.height + pageFormat.width + _margin.top - _margin.right,
+          ));
       child.paint(context);
       context.canvas.restoreContext();
     } else {

@@ -24,6 +24,7 @@ import 'isolate_test.dart' as isolate;
 import 'jpeg_test.dart' as jpeg;
 import 'metrics_test.dart' as metrics;
 import 'minimal_test.dart' as minimal;
+import 'orientation_test.dart' as orientation;
 import 'ttf_test.dart' as ttf;
 import 'type1_test.dart' as type1;
 import 'widget_basic_test.dart' as widget_basic;
@@ -47,6 +48,7 @@ void main() {
   jpeg.main();
   metrics.main();
   minimal.main();
+  orientation.main();
   ttf.main();
   type1.main();
   widget_basic.main();

+/*
+ * Copyright (C) 2017, David PHAM-VAN <dev.nfet.net@gmail.com>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import 'dart:io';
+
+import 'package:test/test.dart';
+import 'package:pdf/pdf.dart';
+import 'package:pdf/widgets.dart';
+
+Document pdf;
+
+Widget content(Context context) {
+  return ListView(children: contentMultiPage(context));
+}
+
+Widget footer(Context context) {
+  return Footer(
+    trailing: Text('Page ${context.pageNumber}'),
+  );
+}
+
+Widget header(Context context) {
+  return Footer(
+    title: Text('Test document'),
+  );
+}
+
+List<Widget> contentMultiPage(Context context) {
+  return List<Widget>.generate(
+    150,
+    (int n) => Container(
+        height: 20,
+        child: Text(
+          'Hello World $n!',
+          style: TextStyle(fontSize: 15),
+        )),
+  );
+}
+
+void main() {
+  setUpAll(() {
+    Document.debug = true;
+    pdf = Document();
+  });
+
+  test('Orientation normal', () {
+    pdf.addPage(Page(
+      clip: true,
+      build: content,
+    ));
+  });
+
+  test('Orientation landscape', () {
+    pdf.addPage(Page(
+      clip: true,
+      pageFormat: PdfPageFormat.standard.portrait,
+      orientation: PageOrientation.landscape,
+      build: content,
+    ));
+    pdf.addPage(Page(
+      clip: true,
+      pageFormat: PdfPageFormat.standard.landscape,
+      orientation: PageOrientation.landscape,
+      build: content,
+    ));
+  });
+
+  test('Orientation portrait', () {
+    pdf.addPage(Page(
+      clip: true,
+      pageFormat: PdfPageFormat.standard.portrait,
+      orientation: PageOrientation.portrait,
+      build: content,
+    ));
+    pdf.addPage(Page(
+      clip: true,
+      pageFormat: PdfPageFormat.standard.landscape,
+      orientation: PageOrientation.portrait,
+      build: content,
+    ));
+  });
+
+  test('Orientation MultiPage normal', () {
+    pdf.addPage(MultiPage(
+      build: contentMultiPage,
+      header: header,
+      footer: footer,
+    ));
+  });
+
+  test('Orientation MultiPage landscape', () {
+    pdf.addPage(MultiPage(
+      pageFormat: PdfPageFormat.standard.portrait,
+      orientation: PageOrientation.landscape,
+      build: contentMultiPage,
+      header: header,
+      footer: footer,
+    ));
+    pdf.addPage(MultiPage(
+      pageFormat: PdfPageFormat.standard.landscape,
+      orientation: PageOrientation.landscape,
+      build: contentMultiPage,
+      header: header,
+      footer: footer,
+    ));
+  });
+
+  test('Orientation MultiPage portrait', () {
+    pdf.addPage(MultiPage(
+      pageFormat: PdfPageFormat.standard.portrait,
+      orientation: PageOrientation.portrait,
+      build: contentMultiPage,
+      header: header,
+      footer: footer,
+    ));
+    pdf.addPage(MultiPage(
+      pageFormat: PdfPageFormat.standard.landscape,
+      orientation: PageOrientation.portrait,
+      build: contentMultiPage,
+      header: header,
+      footer: footer,
+    ));
+  });
+
+  tearDownAll(() {
+    final File file = File('orientation.pdf');
+    file.writeAsBytesSync(pdf.save());
+  });
+}