ColorHelper DevExpress_devexpress thememanager.setthemename-优快云博客

本类实现了应用程序主题颜色的管理功能，通过监听主题变化并更新背景和前景颜色来确保UI的一致性。支持默认主题颜色设置，并能根据不同的主题名称调整颜色。

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public class ColorHelper : INotifyPropertyChanged
{

static SolidColorBrush DefaultThemeBackgroundColor

= new SolidColorBrush(Color.FromRgb(0xA3, 0xC3, 0xEC));
static SolidColorBrush DefaultThemeForegroundColor

= new SolidColorBrush(Color.FromRgb(0x00, 0x00, 0x00));

        public ColorHelper()
        {
            ThemeManager.ThemeChanged +=

ColorHelper.ThemeChanged;
GetColors

(ThemeManager.ActualApplicationThemeName);
        }
        private Brush _Foreground;
        private Brush _Background;
        static ColorHelper _Instance;
        public static ColorHelper Instance { get { if

(_Instance == null)_Instance = new ColorHelper(); return

_Instance; } }

        public Brush Background
        {
            get { return _Background; }
            set
            {
                if (_Background == value)
                    return;
                _Background = value;
                if (PropertyChanged != null)
                    PropertyChanged(this, new

PropertyChangedEventArgs("Background"));
            }
        }
        public Brush Foreground
        {
            get { return _Foreground; }
            set
            {
                if (_Foreground == value)
                    return;
                _Foreground = value;
                if (PropertyChanged != null)
                    PropertyChanged(this, new

PropertyChangedEventArgs("Foreground"));
}
}

public static void ThemeChanged(DependencyObject

sender, ThemeChangedRoutedEventArgs e)
        {
            Instance.GetColors(e.ThemeName);
        }

        void GetColors(string name)
        {
            if (name == "DeepBlue")
            {
                Background = DefaultThemeBackgroundColor;
                Foreground = DefaultThemeForegroundColor;
                return;
            }
            ThemeManager.ThemeChanged -=

ColorHelper.ThemeChanged;
            BackgroundPanel p = new BackgroundPanel();
            ThemeManager.SetThemeName(p, name);
            var q = p.Background;
            Background = p.Background;
            Foreground = p.Foreground;
            ThemeManager.ThemeChanged +=

ColorHelper.ThemeChanged;
}

public event PropertyChangedEventHandler

PropertyChanged;
}