3 files changed, 80 insertions, 1 deletions

diff --git a/ViewModels/Settings/ISettingLimits.cs b/ViewModels/Settings/ISettingLimits.cs
new file mode 100644
index 0000000..a4927f0
--- /dev/null
+++ b/ViewModels/Settings/ISettingLimits.cs
@@ -0,0 +1,9 @@
+namespace Avalar.ViewModels.Settings
+{
+    public interface ISettingLimits
+    {
+        uint MaxWidth { get; }
+
+        uint MaxHeight { get; }
+    }
+}
\ No newline at end of file
diff --git a/ViewModels/Settings/SettingLimits.cs b/ViewModels/Settings/SettingLimits.cs
new file mode 100644
index 0000000..8a0f3ea
--- /dev/null
+++ b/ViewModels/Settings/SettingLimits.cs
@@ -0,0 +1,20 @@
+using Avalonia.Media.Imaging;
+using System;
+
+namespace Avalar.ViewModels.Settings
+{
+    public class SettingLimits : ISettingLimits
+    {
+        public SettingLimits(IBitmap bitmap)
+        {
+            var _ = bitmap ?? throw new ArgumentNullException(nameof(bitmap));
+
+            MaxWidth = Convert.ToUInt32(bitmap.Size.Width);
+            MaxHeight = Convert.ToUInt32(bitmap.Size.Height);
+        }
+
+        public uint MaxWidth { get; }
+
+        public uint MaxHeight { get; }
+    }
+}
diff --git a/ViewModels/Settings/SettingsViewModel.cs b/ViewModels/Settings/SettingsViewModel.cs
index 730b662..17c27cc 100644
--- a/ViewModels/Settings/SettingsViewModel.cs
+++ b/ViewModels/Settings/SettingsViewModel.cs
@@ -1,7 +1,57 @@
 
+using Avalar.Models.Interfaces;
+using ReactiveUI;
+using System;
+using System.ComponentModel;
+using System.Threading.Tasks;
+
 namespace Avalar.ViewModels.Settings
 {
-    public class SettingsViewModel
+    public class SettingsViewModel : ReactiveObject
     {
+        private readonly ISettingsModel m_SettingsModel;
+        public SettingsViewModel(ISettingsModel settingsModel)
+        {
+            m_SettingsModel = settingsModel;
+
+            PropertyChanged += OnPropertyChanged;
+        }
+
+        private async void OnPropertyChanged(object sender, PropertyChangedEventArgs e)
+        {
+            if(e.PropertyName == nameof(Width))
+            {
+                await Task.Run(() => m_SettingsModel.SetWidth(Width)).ConfigureAwait(false);
+            }
+            if (e.PropertyName == nameof(Height))
+            {
+                await Task.Run(() => m_SettingsModel.SetHeight(Height)).ConfigureAwait(false);
+            }
+            if (e.PropertyName == nameof(BrightnessDelta))
+            {
+                await Task.Run(() => m_SettingsModel.SetBrightnessDelta(BrightnessDelta)).ConfigureAwait(false);
+            }
+        }
+
+        private uint m_Width;
+        public uint Width
+        {
+            get => m_Width;
+            set => this.RaiseAndSetIfChanged(ref m_Width, value);
+        }
+
+        private uint m_Height;
+        public uint Height
+        {
+            get => m_Height;
+            set => this.RaiseAndSetIfChanged(ref m_Height, value);
+        }
+
+        private int m_BrightnessDelta;
+        public int BrightnessDelta
+        {
+            get => m_BrightnessDelta;
+            set => this.RaiseAndSetIfChanged(ref m_BrightnessDelta, value);
+        }
     }
 }