修复日志模块深色显示不正确

app/views/pq_log_gui.py

@@ -33,6 +33,55 @@ def _theme_colors():
     }
 
 
+def _normalize_hex(hex_color: str, fallback: str = "#808080") -> str:
+    """把颜色字符串规范化为 #RRGGBB；非法输入回退到 fallback。"""
+    if not isinstance(hex_color, str):
+        return fallback
+    c = hex_color.strip()
+    if not c:
+        return fallback
+    if c.startswith("#"):
+        c = c[1:]
+    if len(c) == 3:
+        c = "".join(ch * 2 for ch in c)
+    if len(c) != 6:
+        return fallback
+    try:
+        int(c, 16)
+    except ValueError:
+        return fallback
+    return f"#{c}"
+
+
+def _hex_to_rgb(hex_color: str):
+    c = _normalize_hex(hex_color, fallback="#808080").lstrip("#")
+    return int(c[0:2], 16), int(c[2:4], 16), int(c[4:6], 16)
+
+
+def _mix(hex_a: str, hex_b: str, ratio: float) -> str:
+    ratio = max(0.0, min(1.0, ratio))
+    r1, g1, b1 = _hex_to_rgb(hex_a)
+    r2, g2, b2 = _hex_to_rgb(hex_b)
+    r = int(r1 * (1 - ratio) + r2 * ratio)
+    g = int(g1 * (1 - ratio) + g2 * ratio)
+    b = int(b1 * (1 - ratio) + b2 * ratio)
+    return f"#{r:02x}{g:02x}{b:02x}"
+
+
+def _is_dark(hex_color: str) -> bool:
+    r, g, b = _hex_to_rgb(hex_color)
+    return (r * 299 + g * 587 + b * 114) / 1000 < 128
+
+
+def _auto_text_color(bg_hex: str, fg_hint: str) -> str:
+    """根据背景亮度给出稳定可读的文本颜色。"""
+    bg_hex = _normalize_hex(bg_hex, fallback="#f5f5f5")
+    fg_hint = _normalize_hex(fg_hint, fallback="#202020")
+    if _is_dark(bg_hex):
+        return _mix("#ffffff", fg_hint, 0.25)
+    return _mix("#000000", fg_hint, 0.25)
+
+
 class PQLogGUI(ttk.Frame):
     VALID_LEVELS = {"info", "success", "warning", "error", "debug", "separator", "blank"}
 
@@ -132,21 +181,44 @@ class PQLogGUI(ttk.Frame):
 
     def _configure_tags(self):
         palette = _theme_colors()
+        bg = self.log_text.cget("bg") or palette["text_bg"] or palette["bg"]
+        base_fg = _auto_text_color(bg, palette["fg"])
+        muted_fg = _mix(base_fg, bg, 0.45)
+        debug_level_color = _mix(palette["accent"], base_fg, 0.35)
+        debug_msg_color = _mix(palette["accent"], base_fg, 0.50)
         self.log_text.tag_configure("timestamp", foreground=palette["muted"])
         self.log_text.tag_configure("level_info", foreground=palette["accent"])
         self.log_text.tag_configure("level_success", foreground=palette["success"])
         self.log_text.tag_configure("level_warning", foreground=palette["warning"])
         self.log_text.tag_configure("level_error", foreground=palette["error"])
-        self.log_text.tag_configure("level_debug", foreground="#7c3aed")
-        self.log_text.tag_configure("message", foreground=palette["fg"])
+        self.log_text.tag_configure("level_debug", foreground=debug_level_color)
+        self.log_text.tag_configure("message", foreground=base_fg)
         self.log_text.tag_configure("message_success", foreground=palette["success"])
         self.log_text.tag_configure("message_warning", foreground=palette["warning"])
         self.log_text.tag_configure("message_error", foreground=palette["error"])
-        self.log_text.tag_configure("message_debug", foreground="#6d28d9")
-        self.log_text.tag_configure("separator", foreground=palette["muted"])
+        self.log_text.tag_configure("message_debug", foreground=debug_msg_color)
+        self.log_text.tag_configure("separator", foreground=muted_fg)
         self.log_text.tag_configure("traceback", foreground=palette["error"])
         self.log_text.tag_configure("blank", spacing1=4, spacing3=4)
 
+    def refresh_log_theme(self):
+        """主题切换后刷新日志控件的背景和字体颜色。"""
+        if threading.current_thread() is not threading.main_thread():
+            self.after(0, self.refresh_log_theme)
+            return
+
+        palette = _theme_colors()
+        bg = palette["text_bg"]
+        fg_hint = palette["text_fg"] if palette["text_fg"] else palette["fg"]
+        fg = _auto_text_color(bg, fg_hint)
+
+        self.log_text.configure(
+            bg=bg,
+            fg=fg,
+            insertbackground=fg,
+        )
+        self._configure_tags()
+
     def _append_message(self, message, level):
         lines = message.splitlines() or [""]
         for line in lines: