preserve notes

.gitignore

@@ -43,3 +43,4 @@ app.*.map.json
 /android/app/debug
 /android/app/profile
 /android/app/release
+*.notes

lib/editor.dart

@@ -13,7 +13,6 @@ class Editor extends StatefulWidget {
 class _Editor extends State<Editor> {
   @override
   Widget build(BuildContext context) {
-
     return InputListener(LayoutBuilder(builder: (BuildContext context, BoxConstraints viewportConstraints) {
       //print("opening document " + path + " " + startLine.toString());
       return View();

lib/file.dart

@@ -31,6 +31,16 @@ class LineFile extends ChangeNotifier {
       line += 1;
     });
 
+    File notesFile = File("$path.subwrite.notes");
+    if (notesFile.existsSync()) {
+      notesFile.readAsLinesSync().forEach((notetext) {
+        var parts = notetext.split(":");
+        var line = int.parse(parts[0]);
+        var note = parts.sublist(1).join(":");
+        addNoteAtLine(line, note);
+      });
+    }
+
     // handle the empty file case
     if (backingLines.isEmpty) {
       backingLines.insert(0, LineInfo(path, 1, ""));
@@ -115,9 +125,17 @@ class LineFile extends ChangeNotifier {
 
   void saveFile() {
     String content = '';
+    String notes = '';
     for (var l in backingLines) {
       content += '${l.text}\n';
+      for (var annot in l.annotations) {
+        if (annot.description != null) {
+          notes += '${annot.sourceLink.lineStart}:${annot.description}\n';
+        }
+      }
     }
+
+    File("$path.subwrite.notes").writeAsStringSync(notes);
     File(path).writeAsStringSync(content);
   }
 
@@ -379,6 +397,10 @@ class LineFile extends ChangeNotifier {
   }
 
   addNote(String note) {
+    addNoteAtLine(cursor.line, note);
+  }
+
+  addNoteAtLine(int line, String note) {
     var notetype = "note";
     if (note.startsWith("[incomplete]")) {
       notetype = "incomplete";
@@ -386,10 +408,10 @@ class LineFile extends ChangeNotifier {
       notetype = "edit";
     }
 
-    backingLines[cursor.line - 1].annotations.add(LineAnnotation(
+    backingLines[line - 1].annotations.add(LineAnnotation(
         SourceLink(
           path,
-          lineStart: cursor.line,
+          lineStart: line,
         ),
         "notes",
         AnnotationType.note,

lib/line_info.dart

@@ -46,7 +46,6 @@ class LineInfo extends ChangeNotifier {
 
         List<Widget> stackElements = List.empty(growable: true);
 
-
         var charWidth = (fontSize / 2.0);
         var lineHeight = (fontSize * 1.2);
         var usableSize = (constraints.maxWidth - gutterWidth - rightMargin - leftMargin);
@@ -88,16 +87,13 @@ class LineInfo extends ChangeNotifier {
           var cursorPosTop = (cursorStart! / maxCharsBeforeWrapping).floorToDouble() * lineHeight;
           var cursorPosLeft = ((cursorStart! % maxCharsBeforeWrapping) * charWidth) - charWidth / 2.0;
           TextStyle cursorStyle = TextStyle(fontFamily: 'Iosevka', fontSize: fontSize, color: foreground, backgroundColor: Colors.transparent, letterSpacing: -2.0);
-          var cursorPos = Positioned(top: cursorPosTop.toDouble(), left: leftMargin+cursorPosLeft.toDouble(), child: FadeTransition(
+          var cursorPos =
-              opacity: animationController, child: Text("|", style: cursorStyle)));
+              Positioned(top: cursorPosTop.toDouble(), left: leftMargin + cursorPosLeft.toDouble(), child: FadeTransition(opacity: animationController, child: Text("|", style: cursorStyle)));
-          stackElements.add( cursorPos);
+          stackElements.add(cursorPos);
         }
 
-
         var cursorOverlay = Stack(children: stackElements);
 
-
-
         return Listener(
             onPointerDown: (event) {
               var inMargin = (event.localPosition.dx - gutterWidth) > usableSize;
@@ -158,7 +154,7 @@ class LineInfo extends ChangeNotifier {
                           margin: EdgeInsets.only(right: 1, top: 0, bottom: 0, left: 0),
                           alignment: Alignment.centerLeft,
                           child: Flex(direction: Axis.horizontal, mainAxisAlignment: MainAxisAlignment.start, children: sidebarContent)),
-                        cursorOverlay,
+                      cursorOverlay,
                     ]))));
       },
     );

lib/view.dart

@@ -11,21 +11,18 @@ import 'line_info.dart';
 class View extends StatefulWidget {
   View({Key? key}) : super(key: key);
 
-
   @override
   _View createState() => _View();
 }
 
 class _View extends State<View> with SingleTickerProviderStateMixin {
-
   late AnimationController _animationController;
 
   @override
   void initState() {
     super.initState();
-    _animationController =  AnimationController(vsync: this, duration: const Duration(milliseconds: 300));
+    _animationController = AnimationController(vsync: this, duration: const Duration(milliseconds: 300));
     _animationController.repeat(reverse: true);
-
   }
 
   @override
@@ -40,53 +37,47 @@ class _View extends State<View> with SingleTickerProviderStateMixin {
 
     if (doc.backingLines.isEmpty) {
       return Center(
-        child: Row (
+        child: Row(
           mainAxisAlignment: MainAxisAlignment.center,
           mainAxisSize: MainAxisSize.min,
           children: [
+            ElevatedButton.icon(
+                onPressed: () async {
+                  String? result = await FilePicker.platform.saveFile();
 
-
+                  if (result != null) {
-            ElevatedButton.icon(onPressed: () async {
+                    File(result).createSync(recursive: false);
-              String? result = await FilePicker.platform.saveFile(
+                    doc.openFile(result, 0);
-
+                    doc.focus.requestFocus();
-              );
+                  } else {
-
+                    // User canceled the picker
-              if (result != null) {
+                  }
-                File(result).createSync(recursive: false);
+                },
-                doc.openFile(result, 0);
+                icon: Icon(Icons.create, color: foreground),
-                doc.focus.requestFocus();
+                label: const Text("New Document"),
-              } else {
+                style: ButtonStyle(backgroundColor: MaterialStateProperty.all(tabs), foregroundColor: MaterialStateProperty.all(foreground))),
-                // User canceled the picker
+            SizedBox(
-              }
+              width: 20,
-
+            ),
-
+            ElevatedButton.icon(
-            }, icon: Icon(Icons.create, color: foreground), label: const Text("New Document"),
+                onPressed: () async {
-                style: ButtonStyle(backgroundColor: MaterialStateProperty.all(tabs),
+                  FilePickerResult? result = await FilePicker.platform.pickFiles(
-                    foregroundColor: MaterialStateProperty.all(foreground))),
+                    allowMultiple: false,
-
+                    type: FileType.custom,
-            SizedBox(width: 20,),
+                    allowedExtensions: ['md', 'txt'],
-
+                  );
-            ElevatedButton.icon(onPressed: () async {
+                  if (result != null) {
-              FilePickerResult? result = await FilePicker.platform.pickFiles(
+                    doc.openFile(result.files.single.path!, 0);
-                allowMultiple: false,
+                  } else {
-                type: FileType.custom,
+                    // User canceled the picker
-                allowedExtensions: ['md','txt'],
+                  }
-              );
+                },
-              if (result != null) {
+                icon: Icon(Icons.file_open, color: foreground),
-                doc.openFile(result.files.single.path!, 0);
+                label: const Text("Open Document"),
-              } else {
+                style: ButtonStyle(backgroundColor: MaterialStateProperty.all(tabs), foregroundColor: MaterialStateProperty.all(foreground))),
-                // User canceled the picker
-              }
-
-
-            }, icon: Icon(Icons.file_open, color: foreground), label: const Text("Open Document"),
-                style: ButtonStyle(backgroundColor: MaterialStateProperty.all(tabs),
-                    foregroundColor: MaterialStateProperty.all(foreground))),
-
           ],
         ),
       );
-
     } else {
       return ScrollablePositionedList.builder(
           physics: const AlwaysScrollableScrollPhysics(),
@@ -98,8 +89,7 @@ class _View extends State<View> with SingleTickerProviderStateMixin {
             return ChangeNotifierProvider.value(
                 value: doc.backingLines[index],
                 builder: (lcontext, lineinfo) {
-                  return Provider.of<LineInfo>(lcontext).build(
+                  return Provider.of<LineInfo>(lcontext).build(context, _animationController);
-                      context, _animationController);
                 });
           });
     }