using ComPDFKitViewer.AnnotEvent;
using Prism.Mvvm;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Media;

namespace PDF_Office.ViewModels.PropertyPanel.AnnotPanel
{

    public class AnnotBasePropertyVM : BindableBase
    {
        //注释类型
        private AnnotArgsType _annotType;
        public AnnotArgsType AnnotType
        {
            get { return _annotType; }
            set => SetProperty(ref _annotType, value);
        }

        //注释类型名称
        private string _annotTypeTitle;
        public string AnnotTypeTitle
        {
            get { return _annotTypeTitle; }
            set => SetProperty(ref _annotTypeTitle, value);
        }

        #region 线条

        //线条粗细大小
        private double _annotThickness = 1;
        public double AnnotThickness
        {
            get { return _annotThickness; }
            set => SetProperty(ref _annotThickness, value);
        }

        //线条样式
        private DashStyle dash = new DashStyle();
        public DashStyle Dash
        {
            get { return dash; }
            set => SetProperty(ref dash, value);
        }

        #endregion 线条

        #region 填充
        //填充颜色透明度
        private double fillOpacity = 1;
        public double FillOpacity
        {
            get { return fillOpacity; }
            set => SetProperty(ref fillOpacity, value);
        }

        //当前填充颜色
        private Brush _currentFillColor = new SolidColorBrush(Colors.Transparent);
        public Brush CurrentFillColor
        {
            get { return _currentFillColor; }
            set => SetProperty(ref _currentFillColor, value);
        }

        //填充颜色
        private Brush fillColor = new SolidColorBrush(Colors.Transparent);
        public Brush FillColor
        {
            get { return fillColor; }
            set { SetProperty(ref fillColor, value); CurrentFillColor = fillColor; }
        }
        #endregion 填充

        #region 边框
        //边框颜色透明度
        private double _borderOpacity = 1;
        public double BorderOpacity
        {
            get { return _borderOpacity; }
            set => SetProperty(ref _borderOpacity, value);
        }

        private Brush _borderColor = new SolidColorBrush(Colors.Transparent);
        public Brush BorderColor
        {
            get { return _borderColor; }
            set { SetProperty(ref _borderColor, value); CurrentBorderColor = _borderColor; }
        }

        //当前边框颜色
        private Brush _currentBorderColor = new SolidColorBrush(Colors.Transparent);
        public Brush CurrentBorderColor
        {
            get { return _currentBorderColor; }
            set => SetProperty(ref _currentBorderColor, value);
        }

        private Brush _fontColor = new SolidColorBrush(Colors.Transparent);
        public Brush FontColor
        {
            get { return _fontColor; }
            set { SetProperty(ref _fontColor, value); CurrentFontColor = _fontColor; }
            
        }

        //当前边框颜色
        private Brush _currentFontColor = new SolidColorBrush(Colors.Transparent);
        public Brush CurrentFontColor
        {
            get { return _currentFontColor; }
            set => SetProperty(ref _currentFontColor, value);
        }

        //外部UI引用，判断是否选中实线、虚线、或都不选中
        public string strDashStyle { get; private set; }
        //VM赋值
        public void SetStrDashStyle(string str)
        {
            strDashStyle = str;
        }

        //外部UI引用，其他：例如形状注释类型
        public string strOtherTag { get; private set; }
        //VM赋值
        public void SetOtherTag(string str)
        {
            strOtherTag = str;
        }
        #endregion

        #region 多选

        //多选注释：用处 - 多选注释使得下拉框为空内容，刷新最新的UI布局
        private bool _isMultiSelected = false;
        public bool IsMultiSelected{
            get { return _isMultiSelected; }
            set => SetProperty(ref _isMultiSelected, value);
        }

        #endregion

        /// <summary>
        /// VM触发到外部UI事件
        /// </summary>
        public event EventHandler<object> SelectedAnnotInvokeToUI;
        //Todo：由于考虑到有些UI在VM不太方便处理，因此需要触发该函数到外部xaml.cs里更改UI属性。
        //更改多个属性：value可为键值对集合
        //适应范围：若VM在Loaded进行绑定，需要UI初始化之后，才能起到作用
        public void InvokeToUI(object sender,object value)
        {
            SelectedAnnotInvokeToUI?.Invoke(sender, value);
        }

    }

}