69 lines
1.8 KiB
Dart
69 lines
1.8 KiB
Dart
import 'package:flutter/material.dart';
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import '../canvas/document_types.dart';
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import 'note_file.dart';
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extension LineLoading on NoteFile {
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Future<List<Stroke>> loadStrokes() async {
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const sql = '''
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SELECT x, y, thickness, strokeid, points.id, s.color
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from points
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JOIN strokes s on s.id = strokeid
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ORDER BY strokeid
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''';
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final query = await db().rawQuery(sql);
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int strokeid = -1;
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List<Stroke> strokes = [];
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for (final i in query) {
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final int csid = i['strokeid'] as int;
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if (csid != strokeid) {
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strokeid = csid;
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strokes.add(Stroke(strokeid, Color(i['color'] as int)));
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}
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final Point p = Point(
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Offset(i['x'] as double, i['y'] as double), i['thickness'] as double);
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strokes.last.points.add(p);
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}
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return strokes;
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}
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// create new stroke in file and return strokeid
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Future<void> addStroke(int newStrokeId, Color color) async {
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await db().insert(
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'strokes', {'color': color.value, 'elevation': 0, 'id': newStrokeId});
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}
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// add one point to a stroke in db
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Future<void> addPoint(int strokeid, Point p) async {
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await db().insert('points', {
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'x': p.point.dx,
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'y': p.point.dy,
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'thickness': p.thickness,
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'strokeid': strokeid
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});
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}
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// add list of points to a stroke in db
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Future<void> addPoints(int strokeid, List<Point> pts) async {
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final batch = db().batch();
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for (final p in pts) {
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batch.insert('points', {
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'x': p.point.dx,
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'y': p.point.dy,
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'thickness': p.thickness,
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'strokeid': strokeid
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});
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}
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await batch.commit();
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}
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Future<void> removeStroke(int id) async {
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final batch = db().batch();
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batch.delete('strokes', where: 'id = $id');
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batch.delete('points', where: 'strokeid = $id');
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await batch.commit();
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}
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}
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