batch insert points to db file when stroke finished

lib/canvas/drawing_page.dart

@@ -39,6 +39,7 @@ class _DrawingPageState extends State<DrawingPage> {
     super.initState();
 
     controller = PaintController(noteFile);
+    debugPrint('initializing strokes from file');
     noteFile.init().then((value) => controller.loadStrokesFromFile());
 
     // todo might be weird behaviour if used with short side

lib/canvas/paint_controller.dart

@@ -54,7 +54,7 @@ class PaintController extends ChangeNotifier {
   }
 
   void pointDownEvent(Offset offset, PointerDownEvent e) async {
-    if (_allowedToDraw(e)) {
+    if (_allowedToDraw(e.kind, e.buttons)) {
       // todo line drawn on edge where line left page
       if (!a4Page.contains(offset)) return;
 
@@ -69,31 +69,31 @@ class PaintController extends ChangeNotifier {
               ? const Color(0xFF444444)
               : Colors.yellow.withOpacity(.5)));
       file.addStroke(strokeid);
-
       notifyListeners();
     }
   }
 
   void pointUpEvent(PointerUpEvent e) {
     if (activePen == Pen.eraser) return;
-
-    if (_allowedToDraw(e)) {
+    if (_allowedToDraw(e.kind, 1)) {
       final lastStroke = strokes.last;
       if (lastStroke.points.length <= 1) {
         // if the line consists only of one point (point) add endpoint as the same to allow drawing a line
         lastStroke.points.add(lastStroke.points.last);
         file.addPoint(lastStroke.id, lastStroke.points.last);
         notifyListeners();
+      } else {
+        debugPrint('adding points to db');
+        file.addPoints(lastStroke.id, lastStroke.points);
       }
     }
   }
 
   /// check if pointer event is allowed to draw points
-  bool _allowedToDraw(PointerEvent event) {
-    return (_allowDrawWithFinger && event.kind == PointerDeviceKind.touch) ||
-        event.kind == PointerDeviceKind.stylus ||
-        (event.kind == PointerDeviceKind.mouse &&
-            event.buttons == kPrimaryMouseButton);
+  bool _allowedToDraw(PointerDeviceKind kind, int button) {
+    return (_allowDrawWithFinger && kind == PointerDeviceKind.touch) ||
+        kind == PointerDeviceKind.stylus ||
+        (kind == PointerDeviceKind.mouse && button == kPrimaryMouseButton);
   }
 
   void pointMoveEvent(Offset offset, PointerMoveEvent event) {
@@ -101,7 +101,7 @@ class PaintController extends ChangeNotifier {
       return;
     }
 
-    if (_allowedToDraw(event)) {
+    if (_allowedToDraw(event.kind, event.buttons)) {
       switch (activePen) {
         case Pen.eraser:
           // todo dynamic eraser size
@@ -128,16 +128,14 @@ class PaintController extends ChangeNotifier {
 
           double newWidth = _calcTiltedWidth(5.0, event.tilt);
           if (pts.length > 1) {
-            newWidth = _calcAngleDependentWidth(
-                pts.last,
-                pts[pts.length - (pts.length > 5 ? 5 : pts.length - 1)],
-                newWidth);
+            newWidth = _calcAngleDependentWidth(pts.last,
+                pts[pts.length - (pts.length > 5 ? 5 : pts.length)], newWidth);
           }
 
           Point p = Point(offset, newWidth);
           strokes.last.addPoint(p);
-          // todo do a batch commit per stroke
-          file.addPoint(strokes.last.id, p);
+          // // todo do a batch commit per stroke
+          // file.addPoint(strokes.last.id, p);
           break;
         case Pen.selector:
           // TODO: Handle this case.
@@ -149,6 +147,7 @@ class PaintController extends ChangeNotifier {
 
   Future<void> loadStrokesFromFile() async {
     strokes = await file.loadStrokes();
+    debugPrint('finished loading strokes from file');
     notifyListeners();
   }
 }

lib/context/file_change_notifier.dart

@@ -26,7 +26,7 @@ class FileChangeNotifier extends ChangeNotifier {
       return NoteTileData(name, filename, lastmodified);
     }).toList();
     dta.sort(
-      (a, b) => a.lastModified.compareTo(b.lastModified),
+      (a, b) => b.lastModified.compareTo(a.lastModified),
     );
     notifyListeners();
     tiledata = dta;

lib/savesystem/line_loader.dart

@@ -40,8 +40,23 @@ extension LineLoading on NoteFile {
     });
   }
 
+  Future<void> addPoints(int strokeid, List<Point> pts) async {
+    final batch = db().batch();
+    for (final p in pts) {
+      batch.insert('points', {
+        'x': p.point.dx,
+        'y': p.point.dy,
+        'thickness': p.thickness,
+        'strokeid': strokeid
+      });
+    }
+    await batch.commit();
+  }
+
   Future<void> removeStroke(int id) async {
-    await db().delete('strokes', where: 'id = $id');
-    await db().delete('points', where: 'strokeid = $id');
+    final batch = db().batch();
+    batch.delete('strokes', where: 'id = $id');
+    batch.delete('points', where: 'strokeid = $id');
+    await batch.commit();
   }
 }