83 lines
3.3 KiB
Python
83 lines
3.3 KiB
Python
# coding: utf-8
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"""主题切换回归自检（无窗口, 离屏渲染）。
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背景: fluent 控件直接 setStyleSheet 的样式会在 setTheme 时被库重刷的自带 qss 冲掉
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（v0.4.0 RGB swatch 按钮切主题丢底色的根因）。swatch 改走 setCustomStyleSheet、
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标题字号走 QFont 后，本测试保证:
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1. Dark -> Light -> Dark -> Light 往返后 9 个 swatch 按钮样式表仍带底色；
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2. Light 下实际渲染出的按钮中心像素 = swatch 色值（不只样式表字符串存在）；
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3. 标题 24px 加粗（QFont）在往返后不变。
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运行: python selftest_theme.py （依赖 PySide6-Fluent-Widgets）
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"""
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import os
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import sys
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os.environ.setdefault("QT_QPA_PLATFORM", "offscreen")
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sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
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from PySide6.QtGui import QColor
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from PySide6.QtWidgets import QApplication
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from qfluentwidgets import PushButton, StrongBodyLabel, Theme, setTheme
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import app_fluent
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import patterns
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def check_style_sheet(win, app):
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swatches = [b for b in win.findChildren(PushButton) if b.text() in {"55", "AA", "FF"}]
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assert len(swatches) == 9, f"expect 9 swatch buttons, got {len(swatches)}"
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title = [l for l in win.findChildren(StrongBodyLabel) if l.text() == "DLPilot"]
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assert len(title) == 1, "title label not found"
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colored = sum(1 for b in swatches if "background-color: #" in b.styleSheet())
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f = title[0].font()
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print(f" swatch 样式表带底色: {colored}/9, 标题 24px 粗体: "
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f"{f.pixelSize() == 24 and f.bold()}")
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return colored == 9 and f.pixelSize() == 24 and f.bold()
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def check_rendered_pixel(win, app):
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"""Light 主题下逐个渲染 swatch，与目标色一致的像素须占明显多数（背景为主，
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中心处是文字字形，不能只采单点）。"""
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ok = True
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for channel, items in patterns.SOLID_ROWS:
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for label, color in items:
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button = next(b for b in win.findChildren(PushButton)
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if b.text() == label and f"background-color: {color}" in b.styleSheet())
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image = button.grab().toImage()
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target = QColor(color)
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total, matched = image.width() * image.height(), 0
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for y in range(image.height()):
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for x in range(image.width()):
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if image.pixelColor(x, y) == target:
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matched += 1
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ratio = matched / total
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same = ratio >= 0.2
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ok &= same
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if not same:
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print(f" 渲染不符: {channel}/{label} 期望 {color} 仅占 {ratio:.0%}")
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print(f" Light 下渲染像素比对: {'一致' if ok else '存在偏差'}")
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return ok
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def main():
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app = QApplication.instance() or QApplication(sys.argv)
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setTheme(Theme.AUTO)
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win = app_fluent.App(0)
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passed = True
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for step, theme in (("初始 Dark", Theme.DARK), ("切 Light", Theme.LIGHT),
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("切回 Dark", Theme.DARK), ("再切 Light", Theme.LIGHT)):
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setTheme(theme)
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app.processEvents()
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print(f"[{step}]")
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passed &= check_style_sheet(win, app)
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if theme == Theme.LIGHT:
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passed &= check_rendered_pixel(win, app)
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win.close()
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print("ALL PASS" if passed else "FAILED")
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return 0 if passed else 1
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if __name__ == "__main__":
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sys.exit(main())
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