Added auto-transitioning background option

MoeIDE/EditorBackground.cs

@@ -114,6 +114,11 @@ private void SetSolidBrush(ThemeChangedEventArgs e)
             var color = uiShell.GetThemedWPFColor(EnvironmentColors.SystemWindowColorKey);
             var brush = new SolidColorBrush(color);
             brush.Freeze();
+            if (hostRootVisual == null)
+            {
+                var source = PresentationSource.FromVisual(control) as HwndSource;
+                hostRootVisual = source.RootVisual as Panel;
+            }
             hostRootVisual.Background = brush;
         }
 

MoeIDE/ImageSwitcher.xaml

@@ -0,0 +1,13 @@
+<UserControl x:Class="Meowtrix.MoeIDE.ImageSwitcher"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
+             xmlns:local="clr-namespace:Meowtrix.MoeIDE"
+             mc:Ignorable="d" 
+             d:DesignHeight="450" d:DesignWidth="800" x:Name="window">
+    <Grid>
+        <Image x:Name="behind" Panel.ZIndex="0" Stretch="{Binding Stretch, ElementName=window}" SourceUpdated="behind_SourceUpdated"/>
+        <Image x:Name="front" Panel.ZIndex="1" Stretch="{Binding Stretch, ElementName=window}" SourceUpdated="front_SourceUpdated"/>
+    </Grid>
+</UserControl>

MoeIDE/ImageSwitcher.xaml.cs

@@ -0,0 +1,213 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.IO;
+using System.Linq;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Media;
+using System.Windows.Media.Animation;
+using System.Windows.Media.Imaging;
+using System.Windows.Threading;
+
+namespace Meowtrix.MoeIDE
+{
+    /// <summary>
+    /// Interaction logic for ImageSwitcher.xaml
+    /// </summary>
+    public partial class ImageSwitcher : UserControl
+    {
+        public static readonly DependencyProperty StretchProperty =
+            DependencyProperty.Register("Stretch", typeof(Stretch), typeof(ImageSwitcher), new PropertyMetadata(Stretch.UniformToFill));
+
+        public Stretch Stretch
+        {
+            get { return (Stretch)GetValue(StretchProperty); }
+            set { SetValue(StretchProperty, value); }
+        }
+
+        public static readonly DependencyProperty IntervalProperty =
+           DependencyProperty.Register("Interval", typeof(double), typeof(ImageSwitcher), new PropertyMetadata(120000.0));
+
+        public double Interval
+        {
+            get { return (double)GetValue(IntervalProperty); }
+            set
+            {
+                if ((double)GetValue(IntervalProperty) != value)
+                {
+                    if (backgroundChanger != null)
+                    {
+                        backgroundChanger.Stop();
+                        backgroundChanger.Interval = TimeSpan.FromMilliseconds(value);
+                        if (!Hibernating)
+                        {
+                            backgroundChanger.Start();
+                        }
+                    }
+                    SetValue(IntervalProperty, value);
+                }
+            }
+        }
+
+        public enum Transitions
+        {
+            [Description("Smooth fade between 2 images")]FADE, // Implemented :D
+            [Description("Fade-out old image, fade-in new image")] FADE_IN_OUT, // todo: later
+            [Description("Slide new image to the left")] SLIDE_TO_LEFT, // todo: later
+            [Description("Slide new image to the right")] SLIDE_TO_RIGHT, //todo: later
+        }
+
+        private DispatcherTimer backgroundChanger;
+        private Queue<string> imageFiles;
+        private Storyboard story = new Storyboard();
+        private bool Hibernating = true;
+
+        public double TransitionDuration;
+        public Transitions TransitionType;
+        public Image ActiveImage;
+
+        public ImageSwitcher(string mustExistsFolderPath)
+        {
+            TransitionType = Transitions.FADE;
+            Interval = 30000.0;
+            Stretch = Stretch.UniformToFill;
+            TransitionDuration = 2000.0;
+            var files = Directory.EnumerateFiles(mustExistsFolderPath).Where(f => f.EndsWith(".jpg") || f.EndsWith(".png"));
+            imageFiles = new Queue<string>(files);
+            backgroundChanger = new DispatcherTimer
+            {
+                Interval = TimeSpan.FromMilliseconds(Interval) // 2 minutes | todo: implement on setting Page
+            };
+            backgroundChanger.Tick += BackgroundChanger_Tick;
+
+            InitializeComponent();
+        }
+
+        public void Hibernate()
+        {
+            backgroundChanger.Stop();
+            Hibernating = true;
+        }
+
+        public void Wake()
+        {
+            if (!Hibernating)
+            {
+                if (!backgroundChanger.IsEnabled)
+                {
+                    backgroundChanger.Start();
+                }
+                return;
+            }
+
+            if (imageFiles.Count > 0)
+            {
+                var t = imageFiles.Dequeue();
+                SwitchTo(LoadImage(t));
+                imageFiles.Enqueue(t);
+            }
+            if (imageFiles.Count > 1)
+            {
+                backgroundChanger.Start();
+            }
+            Hibernating = false;
+        }
+
+        private void BackgroundChanger_Tick(object sender, EventArgs e)
+        {
+            backgroundChanger.Stop();
+
+            var t = imageFiles.Dequeue();
+            ImageSource newImg = LoadImage(t);
+            imageFiles.Enqueue(t);
+            SwitchTo(newImg, TransitionType);
+
+            backgroundChanger.Start();
+        }
+
+        public void SwitchTo(ImageSource newImage)
+        {
+            SwitchTo(newImage, TransitionType);
+        }
+
+        public void SwitchTo(ImageSource newImage, Transitions transition)
+        {
+            if (newImage == null)
+            {
+                return;
+            }
+            switch (transition)
+            {
+                default:
+                case Transitions.FADE:
+                    if (ActiveImage == behind)
+                    {
+                        front.Source = newImage;
+                        ActiveImage = front;
+                        front.BeginAnimation(OpacityProperty, 
+                            new DoubleAnimation(1, 
+                            new Duration(TimeSpan.FromMilliseconds(TransitionDuration))));
+                    }
+                    else
+                    {
+                        behind.Source = newImage;
+                        ActiveImage = behind;
+                        front.BeginAnimation(OpacityProperty,
+                            new DoubleAnimation(0,
+                            new Duration(TimeSpan.FromMilliseconds(TransitionDuration))));
+                    }
+                    break;
+                case Transitions.FADE_IN_OUT:
+                    break;
+                case Transitions.SLIDE_TO_LEFT:
+                    break;
+                case Transitions.SLIDE_TO_RIGHT:
+                    break;
+            }
+        }
+
+        private BitmapFrame LoadImage(string filename)
+        {
+            var imagesource = BitmapFrame.Create(new Uri(filename), BitmapCreateOptions.None, BitmapCacheOption.OnLoad);
+            imagesource.Freeze();
+            return imagesource;
+        }
+
+        public void ChangeFolder(string folderPath)
+        {
+            if (imageFiles.Count > 0 && imageFiles.Peek().Contains(folderPath))
+            {
+                return;
+            }
+            backgroundChanger.Stop();
+
+            var files = Directory.EnumerateFiles(folderPath).Where(f => f.EndsWith(".jpg") || f.EndsWith(".png"));
+            imageFiles = new Queue<string>(files);
+            if (!Hibernating)
+            {
+                if (imageFiles.Count > 0)
+                {
+                    var t = imageFiles.Dequeue();
+                    SwitchTo(LoadImage(t), TransitionType);
+                    imageFiles.Enqueue(t);
+                }
+                if (imageFiles.Count > 1)
+                {
+                    backgroundChanger.Start();
+                }
+            }
+        }
+
+        private void behind_SourceUpdated(object sender, DataTransferEventArgs e)
+        {
+            ActiveImage = behind;
+        }
+
+        private void front_SourceUpdated(object sender, DataTransferEventArgs e)
+        {
+            ActiveImage = front;
+        }
+    }
+}

MoeIDE/MoeIDE.csproj

@@ -55,6 +55,9 @@
   <ItemGroup>
     <Compile Include="EditorBackground.cs" />
     <Compile Include="EditorBackgroundTextViewCreationListener.cs" />
+    <Compile Include="ImageSwitcher.xaml.cs">
+      <DependentUpon>ImageSwitcher.xaml</DependentUpon>
+    </Compile>
     <Compile Include="LocalizedExtension.cs" />
     <Compile Include="Native.cs" />
     <Compile Include="Settings.cs">
@@ -113,30 +116,30 @@
     <Reference Include="Microsoft.VisualStudio.CommandBars, Version=8.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
       <EmbedInteropTypes>False</EmbedInteropTypes>
     </Reference>
-    <PackageReference Include="Microsoft.VisualStudio.CoreUtility" Version="14.3.25407" />
-    <PackageReference Include="Microsoft.VisualStudio.Imaging" Version="14.3.25407" />
-    <PackageReference Include="Microsoft.VisualStudio.OLE.Interop" Version="7.10.6070" />
+    <PackageReference Include="Microsoft.VisualStudio.CoreUtility" Version="15.6.27740" />
+    <PackageReference Include="Microsoft.VisualStudio.Imaging" Version="15.7.27703" />
+    <PackageReference Include="Microsoft.VisualStudio.OLE.Interop" Version="7.10.6071" />
     <PackageReference Include="Microsoft.VisualStudio.Shell.14.0" Version="14.3.25407" />
-    <PackageReference Include="Microsoft.VisualStudio.Shell.Immutable.10.0" Version="10.0.30319" />
-    <PackageReference Include="Microsoft.VisualStudio.Shell.Immutable.11.0" Version="11.0.50727" />
-    <PackageReference Include="Microsoft.VisualStudio.Shell.Immutable.12.0" Version="12.0.21003" />
-    <PackageReference Include="Microsoft.VisualStudio.Shell.Immutable.14.0" Version="14.3.25407" />
-    <PackageReference Include="Microsoft.VisualStudio.Shell.Interop" Version="7.10.6071" />
-    <PackageReference Include="Microsoft.VisualStudio.Shell.Interop.8.0" Version="8.0.50727" />
-    <PackageReference Include="Microsoft.VisualStudio.Shell.Interop.9.0" Version="9.0.30729" />
-    <PackageReference Include="Microsoft.VisualStudio.Shell.Interop.10.0" Version="10.0.30319" />
-    <PackageReference Include="Microsoft.VisualStudio.Shell.Interop.11.0" Version="11.0.61030" />
-    <PackageReference Include="Microsoft.VisualStudio.Shell.Interop.12.0" Version="12.0.30110" />
-    <PackageReference Include="Microsoft.VisualStudio.Text.Data" Version="14.3.25407" />
-    <PackageReference Include="Microsoft.VisualStudio.Text.Logic" Version="14.3.25407" />
-    <PackageReference Include="Microsoft.VisualStudio.Text.UI" Version="14.3.25407" />
-    <PackageReference Include="Microsoft.VisualStudio.Text.UI.Wpf" Version="14.3.25407" />
-    <PackageReference Include="Microsoft.VisualStudio.TextManager.Interop" Version="7.10.6070" />
-    <PackageReference Include="Microsoft.VisualStudio.TextManager.Interop.8.0" Version="8.0.50727" />
-    <PackageReference Include="Microsoft.VisualStudio.Threading" Version="14.1.131" />
-    <PackageReference Include="Microsoft.VisualStudio.Utilities" Version="14.3.25407" />
-    <PackageReference Include="Microsoft.VisualStudio.Validation" Version="14.1.111" />
-    <PackageReference Include="Microsoft.VSSDK.BuildTools" Version="15.0.26201" />
+    <PackageReference Include="Microsoft.VisualStudio.Shell.Immutable.10.0" Version="15.0.25415" />
+    <PackageReference Include="Microsoft.VisualStudio.Shell.Immutable.11.0" Version="15.0.25415" />
+    <PackageReference Include="Microsoft.VisualStudio.Shell.Immutable.12.0" Version="15.0.25415" />
+    <PackageReference Include="Microsoft.VisualStudio.Shell.Immutable.14.0" Version="15.0.25405" />
+    <PackageReference Include="Microsoft.VisualStudio.Shell.Interop" Version="7.10.6072" />
+    <PackageReference Include="Microsoft.VisualStudio.Shell.Interop.8.0" Version="8.0.50728" />
+    <PackageReference Include="Microsoft.VisualStudio.Shell.Interop.9.0" Version="9.0.30730" />
+    <PackageReference Include="Microsoft.VisualStudio.Shell.Interop.10.0" Version="10.0.30320" />
+    <PackageReference Include="Microsoft.VisualStudio.Shell.Interop.11.0" Version="11.0.61031" />
+    <PackageReference Include="Microsoft.VisualStudio.Shell.Interop.12.0" Version="12.0.30111" />
+    <PackageReference Include="Microsoft.VisualStudio.Text.Data" Version="15.6.27740" />
+    <PackageReference Include="Microsoft.VisualStudio.Text.Logic" Version="15.6.27740" />
+    <PackageReference Include="Microsoft.VisualStudio.Text.UI" Version="15.6.27740" />
+    <PackageReference Include="Microsoft.VisualStudio.Text.UI.Wpf" Version="15.6.27740" />
+    <PackageReference Include="Microsoft.VisualStudio.TextManager.Interop" Version="7.10.6071" />
+    <PackageReference Include="Microsoft.VisualStudio.TextManager.Interop.8.0" Version="8.0.50728" />
+    <PackageReference Include="Microsoft.VisualStudio.Threading" Version="15.7.18" />
+    <PackageReference Include="Microsoft.VisualStudio.Utilities" Version="15.7.27703" />
+    <PackageReference Include="Microsoft.VisualStudio.Validation" Version="15.3.53" />
+    <PackageReference Include="Microsoft.VSSDK.BuildTools" Version="15.7.109" />
     <Reference Include="PresentationCore" />
     <Reference Include="PresentationFramework" />
     <Reference Include="stdole, Version=7.0.3300.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
@@ -164,13 +167,17 @@
     </EmbeddedResource>
   </ItemGroup>
   <ItemGroup>
+    <Page Include="ImageSwitcher.xaml">
+      <SubType>Designer</SubType>
+      <Generator>MSBuild:Compile</Generator>
+    </Page>
     <Page Include="SettingsPage.xaml">
       <SubType>Designer</SubType>
       <Generator>MSBuild:Compile</Generator>
     </Page>
   </ItemGroup>
   <ItemGroup>
-    <ProjectReference Include="..\..\Xaml.Extend\Meowtrix.WPF.Extend\Meowtrix.WPF.Extend.csproj">
+    <ProjectReference Include="..\Xaml.Extend\Meowtrix.WPF.Extend\Meowtrix.WPF.Extend.csproj">
       <Project>{15cacac9-9e3c-4056-a26d-b4b9cd7fe596}</Project>
       <Name>Meowtrix.WPF.Extend</Name>
       <IncludeOutputGroupsInVSIX>BuiltProjectOutputGroup%3bBuiltProjectOutputGroupDependencies%3bGetCopyToOutputDirectoryItems%3bSatelliteDllsProjectOutputGroup</IncludeOutputGroupsInVSIX>

MoeIDE/SettingsModel.cs

@@ -9,21 +9,25 @@ namespace Meowtrix.MoeIDE
     public class SettingsModel
     {
         [Serializable]
-        public class ImageInfo
+        public class SettingPack
         {
             public string Filename { get; set; }
+            public bool IsLive { get; set; } = false;
+            public string Folderpath { get; set; }
+            public double Interval { get; set; } = 30000.0;
+            public double TransitionDuration { get; set; } = 2000.0;
             public Stretch Stretch { get; set; } = Stretch.UniformToFill;
             public HorizontalAlignment HorizontalAlignment { get; set; } = HorizontalAlignment.Center;
             public VerticalAlignment VerticalAlignment { get; set; } = VerticalAlignment.Center;
             public Color BackColor { get; set; } = Colors.Transparent;
             public double Opacity { get; set; } = 1.0;
             public double Blur { get; set; } = 0.0;
-            public ImageInfo Clone() => (ImageInfo)MemberwiseClone();
+            public SettingPack Clone() => (SettingPack)MemberwiseClone();
         }
-        public ImageInfo MainBackground { get; set; } = new ImageInfo();
+        public SettingPack MainSetting { get; set; } = new SettingPack();
         public SettingsModel Clone() => new SettingsModel
         {
-            MainBackground = this.MainBackground.Clone()
+            MainSetting = this.MainSetting.Clone()
         };
     }
 }