import 'package:flutter/material.dart'; import '../canvas/document_types.dart'; import 'note_file.dart'; extension LineLoading on NoteFile { Future> loadStrokes() async { final query = await db().query('points', orderBy: 'strokeid', columns: ['x', 'y', 'thickness', 'strokeid', 'id']); int strokeid = -1; List strokes = []; for (final i in query) { final int csid = i['strokeid'] as int; if (csid != strokeid) { strokeid = csid; strokes.add(Stroke(strokeid, Colors.green)); } final Point p = Point( Offset(i['x'] as double, i['y'] as double), i['thickness'] as double); strokes.last.points.add(p); } return strokes; } // create new stroke in file and return strokeid Future addStroke(int newStrokeId) async { await db().insert( 'strokes', {'color': 0xffffff, 'elevation': 0, 'id': newStrokeId}); } Future addPoint(int strokeid, Point p) async { await db().insert('points', { 'x': p.point.dx, 'y': p.point.dy, 'thickness': p.thickness, 'strokeid': strokeid }); } Future removeStroke(int id) async { await db().delete('strokes', where: 'id = $id'); await db().delete('points', where: 'strokeid = $id'); } }