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

using Microsoft.Office.Interop.Word;
using Prism.Commands;
using System;
using System.Collections.Generic;
using System.Diagnostics;
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_Master.CustomControl.CompositeControl
{

    /// <summary>
    /// SlidComboControl.xaml 的交互逻辑
    /// </summary>
    public partial class SlidComboControl : UserControl
    {
        public List<ComboDataItem> Items { get;private set; }    
        public event RoutedEventHandler ValueChanged;
        public string Title
        {
            get { return (string)GetValue(TitleProperty); }
            set {
                SetValue(TitleProperty, value); }
        }

      
        public static readonly DependencyProperty TitleProperty =
            DependencyProperty.Register("Title", typeof(string), typeof(SlidComboControl), new PropertyMetadata("Line Width"));
        //public int IndexSelected
        //{
        //    get { return (int)GetValue(IndexSelectedProperty); }
        //    set
        //    {
        //        SetValue(IndexSelectedProperty, value);
        //    }
        //}


        //public static readonly DependencyProperty IndexSelectedProperty =
        //    DependencyProperty.Register("IndexSelected", typeof(int), typeof(SlidComboControl), new PropertyMetadata(0));

        public string Unit
        { 
            get { return (string)GetValue(UnitProperty); }
            set { SetValue(UnitProperty, value); }
        }


        public static readonly DependencyProperty UnitProperty =
            DependencyProperty.Register("Unit", typeof(string), typeof(SlidComboControl), new PropertyMetadata("pt"));

        public SlidComboControl()
        {
            InitializeComponent();
           
            Items = new List<ComboDataItem>();
            DefaultItems();

            SetLanguage();
        }

        private void SetLanguage()
        {
            //焊死了
            if(thicknessText.Text== "Line Width")
            {
                thicknessText.Text = App.MainPageLoader.GetString("Annotation_Thickness");
            }
            
        }

        public void SetItemSource(List<ComboDataItem> items)
        {
            Items = items;
            combox.ItemSource = Items;
            UpdateMaxMinValue(items);
        }

        private void UpdateMaxMinValue(List<ComboDataItem> items)
        {
            double MaxValue = 0;
            double MinValue = 0;
            if (items != null)
            {
                foreach (var item in items)
                {
                    if (item.Value >= MaxValue)
                        MaxValue = item.Value;

                }
                MinValue = MaxValue;
                foreach (var item in items)
                {
                    if (item.Value <= MinValue)
                        MinValue = item.Value;

                }

                ThicknessSlider.Maximum = MaxValue;
                ThicknessSlider.Minimum = MinValue;
            }
        }

        private void DefaultItems()
        {
            var item = new ComboDataItem(3);
            Items.Add(item);
            item = new ComboDataItem(6);
            Items.Add(item);
            item = new ComboDataItem(9);
            Items.Add(item);
            item = new ComboDataItem(12);
            Items.Add(item);
            item = new ComboDataItem(15);
            Items.Add(item);
            item = new ComboDataItem(18);
            Items.Add(item);
            item = new ComboDataItem(21);
            Items.Add(item);
            item = new ComboDataItem(24);
            Items.Add(item);

            combox.ItemSource = Items;
            UpdateMaxMinValue(Items);
        }

        private void UserControl_Loaded(object sender, RoutedEventArgs e)
        {
            //ThicknessSlider.ValueChanged += ThicknessSlider_ValueChanged;
            combox.ValueChanged -= combox_ValueChanged;
            combox.ValueChanged += combox_ValueChanged;
        }

        private void combox_ValueChanged(object sender, RoutedEventArgs e)
        {
            if (sender is double == true)
            {
                //点击下拉框时触发
                if (combox.IsExistInComBox(sender))
                {
                    Trace.WriteLine("combox_ValueChanged" + (double)sender);
                    ThicknessSlider.Value = (double)sender;
                    
                    ValueChanged?.Invoke((double)sender, null);
                }
            }
        }
        //事件重复SelectedValuePropertyChanged 2023/4/4
        //private void ThicknessSlider_ValueChanged(object sender, RoutedPropertyChangedEventArgs<double> e)
        //{
        //    combox.SelectedItems = new ComboDataItem(Value);
        //  //  ValueChanged?.Invoke(Value, null);
        //}

        //暂无作用，后续准备
        public int SelectedIndex
        {
            get { return (int)GetValue(SelectedIndexProperty); }
            set { SetValue(SelectedIndexProperty, value);
            }
        }
        public static readonly DependencyProperty SelectedIndexProperty =
                   DependencyProperty.Register("SelectedIndex", typeof(int), typeof(SlidComboControl), new PropertyMetadata(-1, SelectedIndexPropertyChanged));
        public double Value
        {
            get { return (double)GetValue(ValueProperty); }
            set { SetValue(ValueProperty, value); }
        }
        public static readonly DependencyProperty ValueProperty =
           DependencyProperty.Register("Value", typeof(double), typeof(SlidComboControl), new PropertyMetadata(1.0, SelectedValuePropertyChanged));
        private static void SelectedValuePropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
        {
            var control = d as SlidComboControl;
            var value = (double)e.NewValue;
            if (control != null)
            {
            
                Trace.WriteLine("SelectedValuePropertyChanged" + value);
                control.combox.SelectedItems = new ComboDataItem(value, control.Unit);
                //判断滑动条的值是否与combox中的项匹配
                if (control != null && control.combox.ItemSource != null)
                {
                    for (int i = 0; i < control.combox.ItemSource.Count; i++)
                    {
                        if (value == control.combox.ItemSource[i].Value)
                        {
                            return;
                        }
                        if(i==control.combox.ItemSource.Count-1)
                        {
                            control.combox.SelectedIndex = -1;
                            control.combox.SelectedItems = new ComboDataItem(value, control.Unit);
                        }
                    }
                }

            }
        }

        public List<ComboDataItem> ItemsSource
        {
            get { return (List<ComboDataItem>)GetValue(ItemsSourceProperty); }
            set { SetValue(ItemsSourceProperty, value); }
        }
        public static readonly DependencyProperty ItemsSourceProperty =
           DependencyProperty.Register("ItemsSource", typeof(List<ComboDataItem>), typeof(SlidComboControl), new PropertyMetadata(null, SelectedItemsSourcePropertyChanged));

        //选中项触发属性
        private static void SelectedIndexPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
        {
            var control = d as SlidComboControl;
            var selectedIndex = (int)e.NewValue;
            if (control != null /*&& control.IsSelectedEmpty == false*/)
            {
                //删掉了selectedIndex != -1，设置不选中任何选项的情况
                //删掉了control.SelectedItems = null;避免崩溃
                if (control.combox.Items != null && control.combox.Items.Count > 0)
                {
                    control.combox.SelectedIndex = selectedIndex;
                    if (control.combox.SelectedItems != null)
                        control.combox.SelectedItems = (ComboDataItem)control.combox.SelectedItems;

                }
                control.combox.UpdateSelectedIndex();
            }
        }


        private static void SelectedItemsSourcePropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
        {
            var control = d as SlidComboControl;
            var value = (List<ComboDataItem>)e.NewValue;
            if (control != null && value != null)
            {
                control.SetItemSource(value);

            }
        }

        private void ThicknessSlider_PreviewMouseMove(object sender, MouseEventArgs e)
        {
            if(e.LeftButton == MouseButtonState.Pressed)
            {
                ValueChanged?.Invoke(ThicknessSlider.Value, null);

            }
        }
    }
}