JYHB.SlnMesnac/SlnMesnac.WPF/MessageTips/MessageAdorner.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Media;
using System.Windows.Threading;
using System.Windows;
using MaterialDesignThemes.Wpf;
using SlnMesnac.Business;

namespace SlnMesnac.WPF.MessageTips
{
    public class MessageAdorner : Adorner
    {
        private ListBox listBox;
        private UIElement _child;
        private FrameworkElement adornedElement;
        public MessageAdorner(UIElement adornedElement) : base(adornedElement)
        {
            this.adornedElement = adornedElement as FrameworkElement;
            
        }

        public void PushMessage(string message, int msgtype, int outTime)
        {
            if (listBox == null)
            {
                listBox = new ListBox() { Style = null, BorderThickness = new Thickness(0), Background = Brushes.Transparent };
                listBox.IsHitTestVisible = false;
                Child = listBox;
            }

            Border border = new Border();
            border.CornerRadius = new CornerRadius(10);
            border.BorderThickness = new Thickness(0);

            border.Opacity = 0.8;

            StackPanel panel = new StackPanel();
            panel.Orientation = Orientation.Horizontal;
            panel.MaxWidth = 700;

            PackIcon icon = new PackIcon();

            icon.Padding = new Thickness(2);
            icon.Margin = new Thickness(2);
            icon.MaxWidth = 100;
            icon.VerticalAlignment = VerticalAlignment.Center;
            icon.HorizontalAlignment = HorizontalAlignment.Center;
            panel.Children.Add(icon);
            border.Height = 100; // 设置高度
            

            TextBlock textBlock = new TextBlock();
            textBlock.Text = message;
            textBlock.TextWrapping = TextWrapping.Wrap;
            textBlock.Padding = new Thickness(5);
            textBlock.Margin = new Thickness(5);
            textBlock.MaxWidth = 600;
            textBlock.FontSize = 25; // 增加字体大小
            textBlock.VerticalAlignment = VerticalAlignment.Center;
            textBlock.HorizontalAlignment = HorizontalAlignment.Center;
            panel.Children.Add(textBlock);
            border.Child = panel;

            if (msgtype == 0)
            {
                border.Background = Brushes.LightGreen;
                icon.Kind = PackIconKind.Check;
                //textBlock.Foreground=Brushes.Green;
            }
            if (msgtype == 1)
            {
                border.Background = Brushes.Yellow;
                icon.Kind = PackIconKind.Alert;
                //textBlock.Foreground = Brushes.Yellow;
            }
            if (msgtype == 2)
            {
                border.Background = Brushes.Red;
                icon.Kind = PackIconKind.Close;
                //textBlock.Foreground = Brushes.Red;
            }


            var item = new MessageItem { Content = border };

            var timer = new DispatcherTimer();
            timer.Interval = TimeSpan.FromSeconds(outTime);
            timer.Tick += (sender, e) =>
            {
                listBox.Items.Remove(item);
                timer.Stop();
            };
            listBox.Items.Insert(0, item);
            timer.Start();
        }

        public UIElement Child
        {
            get => _child;
            set
            {
                if (value == null)
                {
                    RemoveVisualChild(_child);
                    _child = value;
                    return;
                }
                AddVisualChild(value);
                _child = value;
            }
        }
        protected override int VisualChildrenCount
        {
            get
            {
                return _child != null ? 1 : 0;
            }
        }

        protected override Size ArrangeOverride(Size finalSize)
        {
            var x = (adornedElement.ActualWidth - _child.DesiredSize.Width) / 2;
            _child.Arrange(new Rect(new Point(x, 20), _child.DesiredSize));
            return finalSize;
        }

        protected override Visual GetVisualChild(int index)
        {
            if (index == 0 && _child != null) return _child;
            return base.GetVisualChild(index);
        }
    }
}