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@@ -27,12 +27,15 @@ class CardImage {
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/// 宽 ≥ 高 = 横向卡面
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bool get isLandscape => width >= height;
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/// 纵向卡面预旋转为横向位图（Windows Pavo 直打用，见 [pavoPortraitRotateClockwise]）。
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/// 纵向卡面转置为横向位图（Windows Pavo 直打用，见 [pavoPortraitRotateClockwise]）。
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/// 已是横向的原样返回。返回新实例，原实例不变（正/背面各自转换）。
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CardImage toLandscape() {
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if (isLandscape) return this;
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final rotated = copyRotate(_canvas, angle: pavoPortraitRotateClockwise ? 90 : -90);
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return CardImage._(rotated, rotated.width, rotated.height);
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final transposed = pavoPortraitRotateClockwise
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? flipHorizontal(rotated)
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: flipVertical(rotated);
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return CardImage._(transposed, transposed.width, transposed.height);
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}
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/// 解析 data:image/png;base64,…（或其他 data URL 形式），缩放到卡面画布并铺白底。
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@@ -0,0 +1,38 @@
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// toLandscape 转置变换的像素级验证：纵向四象限色块 → 转置后对角象限互换。
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// 转置语义：P(x, y) -> out(y, x)，即左上/右下不动，右上↔左下互换。
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import 'dart:convert';
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import 'package:desktop_plugin/image/card_image.dart';
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import 'package:image/image.dart';
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import 'package:flutter_test/flutter_test.dart';
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void main() {
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test('toLandscape 把纵向卡面转置为横向（对角象限互换）', () {
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// 构造 642×1014 纵向源图：四象限填不同颜色（fromDataUrl 尺寸相同不触发缩放）
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final src = Image(width: 642, height: 1014);
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fillRect(src, x1: 0, y1: 0, x2: 641, y2: 506, color: ColorRgb8(255, 0, 0)); // 上：红
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fillRect(src, x1: 0, y1: 507, x2: 320, y2: 1013, color: ColorRgb8(0, 255, 0)); // 左下：绿
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fillRect(src, x1: 321, y1: 507, x2: 641, y2: 1013, color: ColorRgb8(0, 0, 255)); // 右下：蓝
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final dataUrl = 'data:image/png;base64,${base64Encode(encodePng(src))}';
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final card = CardImage.fromDataUrl(dataUrl);
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expect(card.isLandscape, isFalse, reason: '源图应为纵向');
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final out = card.toLandscape();
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expect(out.isLandscape, isTrue, reason: '转置后应为横向 1014×642');
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expect(out.width, 1014);
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expect(out.height, 642);
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// 像素断言：转置后 out(x', y') = src(y', x')（以中心附近取样避免象限边界）
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final bgr = out.toBgr24();
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// 转置后左上（原上半红区）≈ 红
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(int, int, int) px(int x, int y) {
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final o = (y * out.width + x) * 3;
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return (bgr[o + 2], bgr[o + 1], bgr[o]); // BGR 转回 RGB
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}
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expect(px(300, 100), (255, 0, 0), reason: '左上应保持红（源上半）');
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// 转置把源的"右上"(x大,y小)映到"左下"：源上半仍红，源左下绿映到右半
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expect(px(800, 300), (0, 255, 0), reason: '右半上应为绿（源左下转置）');
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expect(px(800, 500), (0, 0, 255), reason: '右半下应为蓝（源右下转置）');
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});
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}
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+60
-21
@@ -1,38 +1,77 @@
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// 生成 1014×642 测试卡 PNG（真实打印验收用），默认输出 build/test_card.png
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// dart run tool/make_test_card.dart [输出路径]
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// 方向校准卡（Windows Pavo 直打校准用）：642×1014 纵向，四角 ▲■●◆ + 中央大写 F + 左右箭头。
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// 打一张即可从 8 种变换（4 旋转 × 2 镜像）中唯一定出打印机的实际映射。
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//
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// 用法（在项目根目录）：
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// dart run tool/make_test_card.dart # 只生成 build/calibration_card.png
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// dart run tool/make_test_card.dart --print # 生成并直接 POST 到本机助手打印一张
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//
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// 放卡方式与正式打印一致：打印面朝上、文字对着自己。
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import 'dart:convert';
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import 'dart:io';
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import 'package:image/image.dart';
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Future<void> main(List<String> args) async {
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final img = Image(width: 1014, height: 642);
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final doPrint = args.contains('--print');
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final black = ColorRgb8(0, 0, 0);
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final img = Image(width: 642, height: 1014);
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fill(img, color: ColorRgb8(255, 255, 255));
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// 边框
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drawRect(img, x1: 8, y1: 8, x2: 1005, y2: 633, color: ColorRgb8(0, 120, 215));
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// 边框（四边留 6px）
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drawRect(img, x1: 6, y1: 6, x2: 635, y2: 1007, color: ColorRgb8(0, 120, 215));
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// CMYK 色块：验证四色分色与套印
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fillRect(img, x1: 60, y1: 60, x2: 300, y2: 300, color: ColorRgb8(0, 174, 239));
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fillRect(img, x1: 320, y1: 60, x2: 560, y2: 300, color: ColorRgb8(236, 0, 140));
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fillRect(img, x1: 580, y1: 60, x2: 820, y2: 300, color: ColorRgb8(255, 221, 0));
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fillRect(img, x1: 840, y1: 60, x2: 960, y2: 300, color: ColorRgb8(0, 0, 0));
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// 四角标记（各不相同，一印即辨）
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// 左上：实心三角 ▲
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fillPolygon(img, vertices: [Point(40, 40), Point(150, 40), Point(40, 150)], color: black);
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drawString(img, 'LT', font: arial14, x: 44, y: 158, color: black);
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// 右上：实心方块 ■
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fillRect(img, x1: 492, y1: 40, x2: 602, y2: 150, color: black);
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drawString(img, 'RT', font: arial14, x: 500, y: 158, color: black);
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// 左下：实心圆 ●
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fillCircle(img, x: 95, y: 930, radius: 55, color: black);
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drawString(img, 'LB', font: arial14, x: 44, y: 856, color: black);
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// 右下：实心菱形 ◆
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fillPolygon(img, vertices: [Point(547, 860), Point(602, 930), Point(547, 1000), Point(492, 930)], color: black);
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drawString(img, 'RB', font: arial14, x: 560, y: 1004, color: black);
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drawString(img, 'DESKTOP-PLUGIN TEST CARD', font: arial24, x: 60, y: 360, color: ColorRgb8(20, 20, 20));
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drawString(
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img,
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'flutter print verify ${DateTime.now().toIso8601String().substring(0, 19)}',
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font: arial14,
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x: 60,
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y: 420,
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color: ColorRgb8(90, 90, 90),
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);
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drawString(img, '127.0.0.1:38200 /api/card-printer/print', font: arial14, x: 60, y: 450, color: ColorRgb8(90, 90, 90));
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// 中部超大 F（旋转/镜像一票判别）
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// arial 字体最大 48 号，642 宽卡面已足够醒目
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drawString(img, 'F', font: arial48, x: 300, y: 520, color: black);
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// 左右语义标注 + 箭头线
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drawString(img, '<-LEFT', font: arial24, x: 60, y: 430, color: black);
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drawString(img, 'RIGHT->', font: arial24, x: 440, y: 430, color: black);
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drawLine(img, x1: 180, y1: 340, x2: 440, y2: 340, color: black, thickness: 8);
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fillPolygon(img, vertices: [Point(440, 320), Point(490, 340), Point(440, 360)], color: black);
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drawString(img, 'CALIB 0923', font: arial14, x: 180, y: 312, color: black);
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final png = encodePng(img);
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final out = args.isNotEmpty ? args.first : 'build/test_card.png';
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final out = 'build/calibration_card.png';
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final file = File(out);
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await file.parent.create(recursive: true);
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await file.writeAsBytes(png);
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// ignore: avoid_print
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print('written $out (${png.length} bytes)');
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if (doPrint) {
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final b64 = base64Encode(png);
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final body = jsonEncode({
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'copies': 1,
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'front': {'color': 'data:image/png;base64,$b64'},
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});
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final client = HttpClient();
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try {
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final req = await client.postUrl(Uri.parse('http://127.0.0.1:38200/api/card-printer/print'));
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req.headers.contentType = ContentType.json;
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req.write(body);
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final res = await req.close();
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final text = await res.transform(utf8.decoder).join();
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// ignore: avoid_print
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print('print -> ${res.statusCode} $text');
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// ignore: avoid_print
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print('任务已提交；等打印机出卡后查看方向（四角标记：LT三角 RT方块 LB圆 RB菱形，中央大F）');
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} finally {
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client.close();
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}
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}
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}
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