增加系统预设渐变背景

ViewModel/AppConfig.cs

@@ -1,6 +1,7 @@
 
 using GeekDesk.Constant;
 using GeekDesk.Util;
+using GeekDesk.ViewModel.Temp;
 using Newtonsoft.Json;
 using System;
 using System.Collections.ObjectModel;
@@ -75,8 +76,42 @@ namespace GeekDesk.ViewModel
 
         private bool hoverMenu = false; //悬停切换菜单  默认关闭
 
+        private BGStyle bgStyle = BGStyle.ImgBac; //背景风格
+
+        private GradientBGParam gradientBGParam = null; //渐变背景参数
+
         #region GetSet
 
+        public GradientBGParam GradientBGParam
+        {
+            get
+            {
+                if (gradientBGParam == null)
+                {
+                    gradientBGParam = GradientBGParamList.GradientBGParams[0];
+                }
+                return gradientBGParam;
+            }
+            set
+            {
+                gradientBGParam = value;
+                OnPropertyChanged("GradientBGParam");
+            }
+        }
+
+        public BGStyle BGStyle
+        {
+            get
+            {
+                return bgStyle;
+            }
+            set
+            {
+                bgStyle = value;
+                OnPropertyChanged("BGStyle");
+            }
+        }
+
         public bool HoverMenu
         {
             get

ViewModel/GradientBGParam.cs

@@ -0,0 +1,79 @@
+using GeekDesk.Util;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace GeekDesk.ViewModel
+{
+    [Serializable]
+    public class GradientBGParam : INotifyPropertyChanged
+    {
+        private string color1;
+
+        private string color2;
+
+        private string name;
+
+        public GradientBGParam() { }
+
+        public GradientBGParam(string name, string color1, string color2) {
+            this.name = name;
+            this.color1 = color1;
+            this.color2 = color2;
+        }
+
+
+
+        public string Color1
+        {
+            get
+            {
+                return color1;
+            }
+            set
+            {
+                color1 = value;
+                OnPropertyChanged("Color1");
+            }
+        }
+
+        public string Color2
+        {
+            get
+            {
+                return color2;
+            }
+            set
+            {
+                color2 = value;
+                OnPropertyChanged("Color2");
+            }
+        }
+
+        public string Name
+        {
+            get
+            {
+                return name;
+            }
+            set
+            {
+                name = value;
+                OnPropertyChanged("Name");
+            }
+        }
+
+
+        [field: NonSerializedAttribute()]
+        public event PropertyChangedEventHandler PropertyChanged;
+        private void OnPropertyChanged(string propertyName)
+        {
+            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
+            CommonCode.SaveAppData(MainWindow.appData);
+        }
+
+    }
+}

ViewModel/Temp/GradientBGParamList.cs

@@ -0,0 +1,42 @@
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Configuration;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace GeekDesk.ViewModel.Temp
+{
+    public class GradientBGParamList
+    {
+
+
+        private static ObservableCollection<GradientBGParam> gradientBGParams;
+
+        static GradientBGParamList()
+        {
+            //gradientBGParams = (ObservableCollection<GradientBGParam>)ConfigurationManager.GetSection("SystemBGs")
+            gradientBGParams = new ObservableCollection<GradientBGParam>
+            {
+                new GradientBGParam("诸神黄昏", "#FCCF31", "#F55555"),
+                new GradientBGParam ("森林之友", "#EBF7E3", "#A8E4C0"),
+                new GradientBGParam("魅惑妖术", "#FFDDE1", "#EE9CA7"),
+                new GradientBGParam("魅惑妖术", "#D2F6FF", "#91B0E4")
+            };
+        }
+
+        public static ObservableCollection<GradientBGParam> GradientBGParams
+        {
+            get
+            {
+                return gradientBGParams;
+            }
+            set
+            {
+                gradientBGParams = value;
+            }
+        }
+   
+    }
+}