Add app source and tests
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
This commit is contained in:
alvocool
197
test/tools/generate_icon_test.dart
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197
test/tools/generate_icon_test.dart
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// Renders the Peach app icon to assets/icon/ using Flutter's software
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// rasterizer (full anti-aliasing, no external image tools needed).
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//
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// flutter test test/tools/generate_icon_test.dart
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//
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// Then apply everywhere with: dart run flutter_launcher_icons
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import 'dart:io';
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import 'dart:typed_data';
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import 'dart:ui' as ui;
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import 'package:flutter/material.dart';
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import 'package:flutter_test/flutter_test.dart';
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const _size = 1024.0;
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// Brand gradient (matches PeachTheme.brandGradient / the splash tile).
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const _g1 = Color(0xFFFF6A3D);
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const _g2 = Color(0xFFE23C16);
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void main() {
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TestWidgetsFlutterBinding.ensureInitialized();
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test('generate app icon', () async {
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// Full-bleed source (square gradient, no alpha) — iOS-safe, universal.
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await _write('assets/icon/app_icon.png', await _render(_Mode.bleed));
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// Rounded-tile variant with transparent margin (macOS / marketing).
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await _write('assets/icon/app_icon_tile.png', await _render(_Mode.tile));
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// Android adaptive-icon foreground: rocket only, padded into the safe zone.
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await _write('assets/icon/app_icon_fg.png', await _render(_Mode.foreground));
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});
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}
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enum _Mode { bleed, tile, foreground }
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Future<void> _write(String path, Uint8List bytes) async {
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final f = File(path);
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await f.create(recursive: true);
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await f.writeAsBytes(bytes);
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// ignore: avoid_print
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print('wrote $path (${bytes.length} bytes)');
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}
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Future<Uint8List> _render(_Mode mode) async {
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final recorder = ui.PictureRecorder();
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final canvas = Canvas(recorder);
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const rect = Rect.fromLTWH(0, 0, _size, _size);
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// ---- background tile ----
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final bg = Paint()
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..shader = ui.Gradient.linear(
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const Offset(0, 0),
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const Offset(_size, _size),
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[_g1, _g2],
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);
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switch (mode) {
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case _Mode.bleed:
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canvas.drawRect(rect, bg);
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_sheen(canvas);
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break;
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case _Mode.tile:
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const margin = 96.0;
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final tileR = RRect.fromRectAndRadius(
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const Rect.fromLTWH(
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margin, margin, _size - 2 * margin, _size - 2 * margin),
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const Radius.circular(224),
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);
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canvas.drawRRect(tileR, bg);
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canvas.drawRRect(
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tileR.deflate(3),
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Paint()
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..style = PaintingStyle.stroke
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..strokeWidth = 3
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..color = Colors.white.withValues(alpha: 0.16),
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);
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_sheen(canvas);
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break;
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case _Mode.foreground:
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// transparent background — foreground carries the mark only
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break;
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}
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// The mark: filled confidently. The adaptive foreground fills ~2/3 of the
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// frame (the launcher XML then adds a 16% safe-zone inset on top).
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final scale = mode == _Mode.foreground ? 1.15 : 1.14;
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canvas.save();
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canvas.translate(512, 524);
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canvas.scale(scale);
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canvas.translate(-512, -524);
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_drawRocket(canvas);
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canvas.restore();
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final pic = recorder.endRecording();
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final img = await pic.toImage(_size.toInt(), _size.toInt());
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final data = await img.toByteData(format: ui.ImageByteFormat.png);
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return data!.buffer.asUint8List();
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}
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/// Soft top-left highlight for depth.
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void _sheen(Canvas canvas) {
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canvas.drawCircle(
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const Offset(300, 250),
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620,
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Paint()
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..shader = ui.Gradient.radial(
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const Offset(300, 250),
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620,
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[Colors.white.withValues(alpha: 0.16), Colors.white.withValues(alpha: 0)],
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),
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);
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}
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/// A clean, upright rocket — the Peach mark — in white with an accent window,
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/// fins and an exhaust flame. Centered on the 1024 canvas.
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void _drawRocket(Canvas canvas) {
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const cx = 512.0;
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// subtle drop shadow behind the whole mark
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canvas.save();
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canvas.translate(0, 16);
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_rocketBodyAndFins(canvas, Paint()
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..color = Colors.black.withValues(alpha: 0.16)
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..maskFilter = const MaskFilter.blur(BlurStyle.normal, 22));
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canvas.restore();
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// flame first (behind body base)
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final flame = Path()
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..moveTo(cx, 828)
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..cubicTo(cx - 62, 748, cx - 46, 712, cx - 30, 706)
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..lineTo(cx + 30, 706)
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..cubicTo(cx + 46, 712, cx + 62, 748, cx, 828)
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..close();
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canvas.drawPath(
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flame,
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Paint()
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..shader = ui.Gradient.linear(
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const Offset(cx, 700),
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const Offset(cx, 828),
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[const Color(0xFFFFD48A), const Color(0xFFF5A623)],
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));
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// inner flame
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final flame2 = Path()
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..moveTo(cx, 790)
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..cubicTo(cx - 26, 742, cx - 20, 720, cx - 12, 716)
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..lineTo(cx + 12, 716)
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..cubicTo(cx + 20, 720, cx + 26, 742, cx, 790)
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..close();
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canvas.drawPath(flame2, Paint()..color = Colors.white.withValues(alpha: 0.85));
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// white body + fins
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_rocketBodyAndFins(canvas, Paint()..color = Colors.white);
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// window (accent blue with a soft rim)
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canvas.drawCircle(const Offset(cx, 432), 70,
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Paint()..color = const Color(0xFF1F2937).withValues(alpha: 0.10));
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canvas.drawCircle(const Offset(cx, 430), 66,
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Paint()
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..shader = ui.Gradient.linear(
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const Offset(cx - 60, 370),
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const Offset(cx + 60, 490),
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[const Color(0xFF5AA0FF), const Color(0xFF2F6FE0)],
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));
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// window glint
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canvas.drawCircle(const Offset(cx - 20, 408), 18,
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Paint()..color = Colors.white.withValues(alpha: 0.55));
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}
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void _rocketBodyAndFins(Canvas canvas, Paint paint) {
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const cx = 512.0;
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// fins (drawn under the body edges)
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final rightFin = Path()
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..moveTo(cx + 96, 556)
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..lineTo(cx + 208, 712)
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..lineTo(cx + 78, 676)
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..close();
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final leftFin = Path()
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..moveTo(cx - 96, 556)
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..lineTo(cx - 208, 712)
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..lineTo(cx - 78, 676)
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..close();
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canvas.drawPath(rightFin, paint);
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canvas.drawPath(leftFin, paint);
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// body (symmetric capsule with a pointed nose)
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final body = Path()
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..moveTo(cx, 244) // nose tip
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..cubicTo(cx + 92, 300, cx + 116, 372, cx + 116, 452)
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..cubicTo(cx + 116, 566, cx + 96, 646, cx + 60, 700)
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..cubicTo(cx + 34, 714, cx - 34, 714, cx - 60, 700)
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..cubicTo(cx - 96, 646, cx - 116, 566, cx - 116, 452)
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..cubicTo(cx - 116, 372, cx - 92, 300, cx, 244)
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..close();
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canvas.drawPath(body, paint);
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}
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