todo safeguard

.flutter-plugins

@@ -13,3 +13,5 @@ path_provider_linux=/home/naoufal/.pub-cache/hosted/pub.dev/path_provider_linux-
 path_provider_windows=/home/naoufal/.pub-cache/hosted/pub.dev/path_provider_windows-2.1.3/
 pdfx=/home/naoufal/.pub-cache/hosted/pub.dev/pdfx-2.3.0/
 printing=/home/naoufal/.pub-cache/hosted/pub.dev/printing-5.10.1/
+screen_retriever=/home/naoufal/.pub-cache/hosted/pub.dev/screen_retriever-0.1.6/
+window_manager=/home/naoufal/.pub-cache/hosted/pub.dev/window_manager-0.3.0/

lib/main.dart

@@ -6,28 +6,41 @@ import 'package:flutter/services.dart';
 import 'package:pdf/pdf.dart';
 import 'package:printing/printing.dart';
 import 'package:pdf/widgets.dart' as pw;
+import 'package:window_manager/window_manager.dart';
 
 Future<void> main() async {
-  runApp(MyApp('PDF Tools'));
+  WidgetsFlutterBinding.ensureInitialized();
+  // Must add this line.
+  await windowManager.ensureInitialized();
+  if (Platform.isWindows || Platform.isLinux || Platform.isMacOS) {
+    await windowManager.setSize(const Size(450, 300));
+  }
+  runApp(const MyApp());
 }
 
 // ignore: must_be_immutable
-class MyApp extends StatelessWidget {
-  MyApp(this.title, {Key? key}) : super(key: key);
-  final String title;
-  String openFilePath = "";
-  double dpi = 200;
+class MyApp extends StatefulWidget {
+  const MyApp({super.key});
+
+  @override
+  State<MyApp> createState() => _MyAppState();
+}
+
+class _MyAppState extends State<MyApp> {
+  String _openFilePath = "";
+  String? _encryption = "";
+  double _dpi = 200;
   Future convert(String savePath) async {
     final pdf = pw.Document();
     final file = File(savePath);
 
-    final openddPdf = await rootBundle.load(openFilePath);
+    final openddPdf = await rootBundle.load(_openFilePath);
     var doc = openddPdf.buffer.asUint8List();
 
     // var tempDir = Directory.systemTemp.createTempSync();
     // int index = 1;
 
-    await for (var page in Printing.raster(doc, dpi: dpi)) {
+    await for (var page in Printing.raster(doc, dpi: _dpi)) {
       final image = await page.toImage();
       final data = await image.toByteData(format: ui.ImageByteFormat.png);
 
@@ -42,6 +55,7 @@ class MyApp extends StatelessWidget {
 
       // index++;
     }
+
     return file.writeAsBytes(await pdf.save());
   }
 
@@ -49,17 +63,19 @@ class MyApp extends StatelessWidget {
     FilePickerResult? result = await FilePicker.platform
         .pickFiles(allowMultiple: false, lockParentWindow: true);
     if (result != null) {
-      openFilePath = result.files.first.path!;
+      setState(() {
+        _openFilePath = result.files.first.path!;
+      });
     } else {
       // User canceled the picker
     }
   }
 
-  void saveFile() async {
+  Future saveFile() async {
     var savePath = await FilePicker.platform
         .saveFile(allowedExtensions: ['pdf'], lockParentWindow: true);
     if (savePath != null) {
-      convert(savePath);
+      return await convert(savePath);
     } else {
       // User canceled the picker
     }
@@ -70,16 +86,84 @@ class MyApp extends StatelessWidget {
     // test();
     return MaterialApp(
       home: Scaffold(
-        appBar: AppBar(title: Text(title)),
-        body: Column(
+        appBar: AppBar(title: const Text("PDF Tools")),
+        body: SizedBox(
+          width: double.infinity,
+          child: Padding(
+            padding: const EdgeInsets.all(8.0),
+            child: Column(
               children: [
-            const Text("data"),
-            ElevatedButton(
-                onPressed: () => openFile(), child: const Text("open")),
-            ElevatedButton(
-                onPressed: () => saveFile(), child: const Text("save")),
+                Text(_openFilePath),
+                Column(children: [
+                  Row(
+                    mainAxisAlignment: MainAxisAlignment.spaceEvenly,
+                    mainAxisSize: MainAxisSize.max,
+                    children: [
+                      const Text("Quality :"),
+                      Expanded(
+                        child: Slider(
+                          min: 100,
+                          max: 500,
+                          divisions: 20,
+                          label: _dpi.toString(),
+                          value: _dpi,
+                          onChanged: (value) {
+                            setState(() {
+                              _dpi = value;
+                            });
+                          },
+                        ),
+                      ),
+                      Text(_dpi.toString()),
                     ],
                   ),
+                  const SizedBox(height: 10),
+                  TextField(
+                    decoration: const InputDecoration(
+                      labelText: 'Encrypt (Optional)',
+                      border: OutlineInputBorder(),
+                    ),
+                    controller: TextEditingController(text: _encryption),
+                    onSubmitted: (value) {
+                      setState(() {
+                        _encryption = value;
+                      });
+                    },
+                  ),
+                  const SizedBox(height: 10),
+                  Row(
+                    children: [
+                      ElevatedButton(
+                          onPressed: () => openFile(),
+                          child: Flex(
+                            direction: Axis.vertical,
+                            children: const [
+                              Icon(Icons.folder),
+                              Text("Open pdf")
+                            ],
+                          )),
+                      ElevatedButton(
+                          onPressed: () async {
+                            await saveFile();
+                            showDialog(
+                              context: context,
+                              builder: (context) => Text("ok"),
+                            );
+                          },
+                          child: Flex(
+                            direction: Axis.vertical,
+                            children: const [
+                              Icon(Icons.save),
+                              Text("save"),
+                            ],
+                          )),
+                    ],
+                  ),
+                ])
+              ],
+            ),
+          ),
+        ),
       ),
     );
   }

linux/flutter/generated_plugin_registrant.cc

@@ -7,9 +7,17 @@
 #include "generated_plugin_registrant.h"
 
 #include <printing/printing_plugin.h>
+#include <screen_retriever/screen_retriever_plugin.h>
+#include <window_manager/window_manager_plugin.h>
 
 void fl_register_plugins(FlPluginRegistry* registry) {
   g_autoptr(FlPluginRegistrar) printing_registrar =
       fl_plugin_registry_get_registrar_for_plugin(registry, "PrintingPlugin");
   printing_plugin_register_with_registrar(printing_registrar);
+  g_autoptr(FlPluginRegistrar) screen_retriever_registrar =
+      fl_plugin_registry_get_registrar_for_plugin(registry, "ScreenRetrieverPlugin");
+  screen_retriever_plugin_register_with_registrar(screen_retriever_registrar);
+  g_autoptr(FlPluginRegistrar) window_manager_registrar =
+      fl_plugin_registry_get_registrar_for_plugin(registry, "WindowManagerPlugin");
+  window_manager_plugin_register_with_registrar(window_manager_registrar);
 }

linux/flutter/generated_plugins.cmake

@@ -4,6 +4,8 @@
 
 list(APPEND FLUTTER_PLUGIN_LIST
   printing
+  screen_retriever
+  window_manager
 )
 
 list(APPEND FLUTTER_FFI_PLUGIN_LIST

macos/Flutter/GeneratedPluginRegistrant.swift

@@ -9,10 +9,14 @@ import device_info_plus_macos
 import path_provider_foundation
 import pdfx
 import printing
+import screen_retriever
+import window_manager
 
 func RegisterGeneratedPlugins(registry: FlutterPluginRegistry) {
   DeviceInfoPlusMacosPlugin.register(with: registry.registrar(forPlugin: "DeviceInfoPlusMacosPlugin"))
   PathProviderPlugin.register(with: registry.registrar(forPlugin: "PathProviderPlugin"))
   PdfxPlugin.register(with: registry.registrar(forPlugin: "PdfxPlugin"))
   PrintingPlugin.register(with: registry.registrar(forPlugin: "PrintingPlugin"))
+  ScreenRetrieverPlugin.register(with: registry.registrar(forPlugin: "ScreenRetrieverPlugin"))
+  WindowManagerPlugin.register(with: registry.registrar(forPlugin: "WindowManagerPlugin"))
 }

pubspec.yaml

@@ -41,6 +41,9 @@ dependencies:
   path_provider: ^2.0.12
   pdfx: ^2.3.0
   printing: ^5.10.1
+  window_manager: ^0.3.0
+  flutter_localizations:
+    sdk: flutter
 
 dev_dependencies:
   flutter_test:

windows/flutter/generated_plugin_registrant.cc

@@ -8,10 +8,16 @@
 
 #include <pdfx/pdfx_plugin.h>
 #include <printing/printing_plugin.h>
+#include <screen_retriever/screen_retriever_plugin.h>
+#include <window_manager/window_manager_plugin.h>
 
 void RegisterPlugins(flutter::PluginRegistry* registry) {
   PdfxPluginRegisterWithRegistrar(
       registry->GetRegistrarForPlugin("PdfxPlugin"));
   PrintingPluginRegisterWithRegistrar(
       registry->GetRegistrarForPlugin("PrintingPlugin"));
+  ScreenRetrieverPluginRegisterWithRegistrar(
+      registry->GetRegistrarForPlugin("ScreenRetrieverPlugin"));
+  WindowManagerPluginRegisterWithRegistrar(
+      registry->GetRegistrarForPlugin("WindowManagerPlugin"));
 }

windows/flutter/generated_plugins.cmake

@@ -5,6 +5,8 @@
 list(APPEND FLUTTER_PLUGIN_LIST
   pdfx
   printing
+  screen_retriever
+  window_manager
 )
 
 list(APPEND FLUTTER_FFI_PLUGIN_LIST