using System;
using System.Collections.Generic;
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;

namespace CurveModule.Views
{
    /// <summary>
    /// CurveRecallView.xaml 的交互逻辑
    /// </summary>
    public partial class CurveRecallView : UserControl
    {
        public CurveRecallView()
        {
            InitializeComponent();
        }
        private void Button_Click(object sender, RoutedEventArgs e)
        {
            try
            {
                DrawingVisual drawingVisual = new DrawingVisual();
                using (DrawingContext context = drawingVisual.RenderOpen())
                {
                    VisualBrush brush = new VisualBrush(Chart) { Stretch = Stretch.None };
                    context.DrawRectangle(brush, null, new Rect(0, 0, Chart.ActualWidth, Chart.ActualHeight));
                    context.Close();
                }
                RenderTargetBitmap targetBitmap = new RenderTargetBitmap((int)Chart.ActualWidth, (int)Chart.ActualHeight, 96d, 96d, PixelFormats.Default);
                targetBitmap.Render(drawingVisual);
                PngBitmapEncoder saveEncoder = new PngBitmapEncoder();
                saveEncoder.Frames.Add(BitmapFrame.Create(targetBitmap));
                string tempFile = @$"D:\ACP\图片\{DateTime.Now:yyyyMMdd_HHmmss}.png";
                System.IO.FileStream fs = System.IO.File.Open(tempFile, System.IO.FileMode.OpenOrCreate);
                saveEncoder.Save(fs);
                fs.Close();
                MessageBox.Show($"导出图片成功");
            }
            catch (Exception ex)
            {
                MessageBox.Show($"导出图片失败：{ex.Message}");
            }

        }
    }
}