Any2MIF/ui/theme_controller.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Copyright (c) 2025 Any2MIF Project
# All rights reserved.

"""
Any2MIF - 主题控制器
负责应用程序的主题设置，锁定为深色模式
"""

import os
from PyQt6.QtWidgets import QWidget
from PyQt6.QtCore import QSettings, pyqtSignal

class ThemeController(QWidget):
    """主题控制器，锁定为深色模式"""
    
    # 自定义信号
    theme_changed = pyqtSignal(str)  # 主题变更时发出的信号
    
    def __init__(self, settings: QSettings, parent=None):
        """初始化主题控制器"""
        super().__init__(parent)
        self.settings = settings
        
        # 直接设置为深色模式
        self.settings.setValue("theme", "dark")
        self.apply_theme("dark")
        self.theme_changed.emit("dark")
    
    def apply_theme(self, theme):
        """应用主题"""
        # 加载样式表
        style_file = os.path.join("resources", "styles", f"{theme}.qss")
        
        if os.path.exists(style_file):
            with open(style_file, "r", encoding="utf-8") as f:
                style_sheet = f.read()
                # 应用样式表到应用程序
                app = self.window().parent()
                if app:
                    app.setStyleSheet(style_sheet)
        else:
            # 如果样式文件不存在，使用默认样式
            self._apply_default_style(theme)
    
    def _apply_default_style(self, theme):
        """应用默认样式"""
        if theme == "light":
            style_sheet = """
            QMainWindow, QDialog {
                background-color: #f5f5f5;
                color: #333333;
            }
            
            QWidget {
                background-color: #f5f5f5;
                color: #333333;
            }
            
            QLabel {
                color: #333333;
            }
            
            QPushButton {
                background-color: #e0e0e0;
                border: 1px solid #b0b0b0;
                border-radius: 4px;
                padding: 5px 10px;
                color: #333333;
            }
            
            QPushButton:hover {
                background-color: #d0d0d0;
            }
            
            QPushButton:pressed {
                background-color: #c0c0c0;
            }
            
            QLineEdit, QSpinBox, QComboBox {
                background-color: #ffffff;
                border: 1px solid #b0b0b0;
                border-radius: 4px;
                padding: 3px;
                color: #333333;
            }
            
            QGroupBox {
                border: 1px solid #b0b0b0;
                border-radius: 4px;
                margin-top: 10px;
                padding-top: 10px;
            }
            
            QGroupBox::title {
                subcontrol-origin: margin;
                subcontrol-position: top center;
                padding: 0 5px;
                color: #333333;
            }
            
            QListWidget {
                background-color: #ffffff;
                border: 1px solid #b0b0b0;
                border-radius: 4px;
                color: #333333;
            }
            
            QListWidget::item:selected {
                background-color: #b0b0b0;
                color: #333333;
            }
            
            QSlider::groove:horizontal {
                border: 1px solid #b0b0b0;
                height: 8px;
                background: #ffffff;
                margin: 2px 0;
                border-radius: 4px;
            }
            
            QSlider::handle:horizontal {
                background: #e0e0e0;
                border: 1px solid #b0b0b0;
                width: 18px;
                margin: -2px 0;
                border-radius: 9px;
            }
            
            QSlider::handle:horizontal:hover {
                background: #d0d0d0;
            }
            
            QStatusBar {
                background-color: #e0e0e0;
                color: #333333;
            }
            
            QToolBar {
                background-color: #e0e0e0;
                border-bottom: 1px solid #b0b0b0;
            }
            """
        else:  # dark
            style_sheet = """
            QMainWindow, QDialog {
                background-color: #2d2d2d;
                color: #f0f0f0;
            }
            
            QWidget {
                background-color: #2d2d2d;
                color: #f0f0f0;
            }
            
            QLabel {
                color: #f0f0f0;
            }
            
            QPushButton {
                background-color: #3d3d3d;
                border: 1px solid #5d5d5d;
                border-radius: 4px;
                padding: 5px 10px;
                color: #f0f0f0;
            }
            
            QPushButton:hover {
                background-color: #4d4d4d;
            }
            
            QPushButton:pressed {
                background-color: #5d5d5d;
            }
            
            QLineEdit, QSpinBox, QComboBox {
                background-color: #3d3d3d;
                border: 1px solid #5d5d5d;
                border-radius: 4px;
                padding: 3px;
                color: #f0f0f0;
            }
            
            QGroupBox {
                border: 1px solid #5d5d5d;
                border-radius: 4px;
                margin-top: 10px;
                padding-top: 10px;
            }
            
            QGroupBox::title {
                subcontrol-origin: margin;
                subcontrol-position: top center;
                padding: 0 5px;
                color: #f0f0f0;
            }
            
            QListWidget {
                background-color: #3d3d3d;
                border: 1px solid #5d5d5d;
                border-radius: 4px;
                color: #f0f0f0;
            }
            
            QListWidget::item:selected {
                background-color: #5d5d5d;
                color: #f0f0f0;
            }
            
            QSlider::groove:horizontal {
                border: 1px solid #5d5d5d;
                height: 8px;
                background: #3d3d3d;
                margin: 2px 0;
                border-radius: 4px;
            }
            
            QSlider::handle:horizontal {
                background: #5d5d5d;
                border: 1px solid #7d7d7d;
                width: 18px;
                margin: -2px 0;
                border-radius: 9px;
            }
            
            QSlider::handle:horizontal:hover {
                background: #6d6d6d;
            }
            
            QStatusBar {
                background-color: #3d3d3d;
                color: #f0f0f0;
            }
            
            QToolBar {
                background-color: #3d3d3d;
                border-bottom: 1px solid #5d5d5d;
            }
            """
        
        # 应用样式表到应用程序
        app = self.window().parent()
        if app:
            app.setStyleSheet(style_sheet)