PDFOffice_Windows_exe/PDF Office/CustomControl/CompositeControl/SlidContentPop.xaml.cs

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 PDF_Office.CustomControl.CompositeControl
{
    /// <summary>
    /// ThicknessContentPop.xaml 的交互逻辑
    /// </summary>
    public partial class SlidContentPop : UserControl
    {
        public event EventHandler<double> OpacityValueChangedHandler;
        public bool isOpenLayout { get; private set; }
        public SlidContentPop()
        {
            InitializeComponent();
        }

        public void SetOpacity(double opacity)
        {
            bool changeFromDropBox = false;
            if(opacity == 0.25)
            {
                OpacityDropBox.SelectedIndex = 0;
                changeFromDropBox = true;
            }
            else if(opacity == 0.50)
            {
                OpacityDropBox.SelectedIndex = 1;
                changeFromDropBox = true;
            }
            else if(opacity == 0.75)
            {
                OpacityDropBox.SelectedIndex = 2;
                changeFromDropBox = true;
            }
            else if(opacity ==1)
            {
                OpacityDropBox.SelectedIndex = 3;
                changeFromDropBox = true;
            }

            if (changeFromDropBox == false)
                OpacitySlider.Value = opacity;

        }   
        private void OpacitySlider_ValueChanged(object sender, RoutedPropertyChangedEventArgs<double> e)
        {
            OpacityValueChangedHandler?.Invoke(this, e.NewValue);
        }

        private void OpacityDropBox_DropDownClosed(object sender, EventArgs e)
        {
            isOpenLayout = false;
        }

        private void OpacityDropBox_DropDownOpened(object sender, EventArgs e)
        {
            isOpenLayout = true;
        }

        private void OpacityDropBox_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            switch(OpacityDropBox.SelectedIndex)
            {
                case 0:
                    OpacitySlider.Value = 0.25;
                    break;
                case 1:
                    OpacitySlider.Value = 0.50;
                    break;
                case 2:
                    OpacitySlider.Value = 0.75;
                    break;
                case 3:
                    OpacitySlider.Value = 1;
                    break;
            }
        }
    }
}