refactor: rewrite the histories filter function to supports both include and exclude modes (#690)

Signed-off-by: leo <longshuang@msn.cn>

src/Models/Filter.cs

@@ -0,0 +1,60 @@
+using CommunityToolkit.Mvvm.ComponentModel;
+
+namespace SourceGit.Models
+{
+    public enum FilterType
+    {
+        LocalBranch = 0,
+        LocalBranchFolder,
+        RemoteBranch,
+        RemoteBranchFolder,
+        Tag,
+    }
+
+    public enum FilterMode
+    {
+        None = 0,
+        Included,
+        Excluded,
+    }
+
+    public class Filter : ObservableObject
+    {
+        public string Pattern 
+        {
+            get => _pattern;
+            set => SetProperty(ref _pattern, value);
+        }
+
+        public FilterType Type 
+        {
+            get;
+            set;
+        } = FilterType.LocalBranch;
+
+        public FilterMode Mode 
+        {
+            get => _mode;
+            set => SetProperty(ref _mode, value);
+        }
+
+        public bool IsBranch
+        {
+            get => Type != FilterType.Tag;
+        }
+
+        public Filter()
+        {
+        }
+
+        public Filter(string pattern, FilterType type, FilterMode mode)
+        {
+            _pattern = pattern;
+            _mode = mode;
+            Type = type;
+        }
+
+        private string _pattern = string.Empty;
+        private FilterMode _mode = FilterMode.None;
+    }
+}