using NaiBa.Util.Extension;
using System;
using System.Collections.Generic;
using System.Drawing.Drawing2D;
using System.Globalization;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using static System.Net.Mime.MediaTypeNames;

namespace _29WxOrderWpf.UserControls
{
    /// <summary>
    /// UcWaterMarkTextBox.xaml 的交互逻辑
    /// </summary>
    public partial class UcWaterMarkTextBox : UserControl
    {
        public event Action<object, TextChangedEventArgs> TextChanged;

        public UcWaterMarkTextBox()
        {
            InitializeComponent();
            DataContext = this;
            //this.txt.TextChanged
        }

        public static readonly DependencyProperty TextProperty = DependencyProperty.Register("Text", typeof(string), typeof(UcWaterMarkTextBox), null);
        public string Text
        {
            get { return (string)GetValue(TextProperty) == null ? "" : (string)GetValue(TextProperty); }
            set { SetValue(TextProperty, value); }
        }

        public static readonly DependencyProperty WaterMarkProperty = DependencyProperty.Register("WaterMark", typeof(string), typeof(UcWaterMarkTextBox), null);
        public string WaterMark
        {
            get { return (string)GetValue(WaterMarkProperty) == null ? "" : (string)GetValue(WaterMarkProperty); }
            set { SetValue(WaterMarkProperty, value); }
		}

		public static readonly DependencyProperty TextWrappingProperty = DependencyProperty.Register("TextWrapping", typeof(TextWrapping), typeof(UcWaterMarkTextBox), null);
		public TextWrapping TextWrapping
		{
			get { return (TextWrapping)GetValue(TextWrappingProperty); }
			set { SetValue(TextWrappingProperty, value); }
		}

		public static readonly DependencyProperty TextBorderThicknessProperty = DependencyProperty.Register("TextBorderThickness", typeof(Thickness), typeof(UcWaterMarkTextBox),
			new PropertyMetadata(new Thickness(1)));
		public Thickness TextBorderThickness
		{
			get { return (Thickness)GetValue(TextBorderThicknessProperty); }
			set { SetValue(TextBorderThicknessProperty, value); }
		}

		private void txt_TextChanged(object sender, TextChangedEventArgs e)
        {
            this.Text = txt.Text;
            TextChanged?.Invoke(this, e);
        }
    }

    public class WaterMarkVisibilityConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            return value.ParseToString().IsNullOrEmpty() ? Visibility.Visible : Visibility.Collapsed;
        }
        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
        {
            throw new NotImplementedException(); // 单向绑定可不实现
        }
    }
}