Nodes - Added categories

Nodes - Added quick node creation
Nodes - Added input and output types to NodeAttribute

src/Artemis.Core/Services/NodeService.cs

@@ -54,7 +54,7 @@ namespace Artemis.Core.Services
             string description = nodeAttribute?.Description ?? string.Empty;
             string category = nodeAttribute?.Category ?? string.Empty;
             
-            NodeData nodeData = new(plugin, nodeType, name, description, category, (s, e) => CreateNode(s, e, nodeType));
+            NodeData nodeData = new(plugin, nodeType, name, description, category, nodeAttribute?.InputType, nodeAttribute?.OutputType, (s, e) => CreateNode(s, e, nodeType));
             return NodeTypeStore.Add(nodeData);
         }
 

src/Artemis.Core/VisualScripting/NodeAttribute.cs

@@ -9,6 +9,8 @@ namespace Artemis.Core
         public string Name { get; }
         public string Description { get; set; }
         public string Category { get; set; }
+        public Type InputType { get; set; }
+        public Type OutputType { get; set; }
 
         #endregion
 

src/Artemis.Core/VisualScripting/NodeData.cs

@@ -13,6 +13,8 @@ namespace Artemis.Core
         public string Name { get; }
         public string Description { get; }
         public string Category { get; }
+        public Type? InputType { get; }
+        public Type? OutputType { get; }
 
         private Func<INodeScript, NodeEntity?, INode> _create;
 
@@ -20,13 +22,15 @@ namespace Artemis.Core
 
         #region Constructors
 
-        internal NodeData(Plugin plugin, Type type, string name, string description, string category, Func<INodeScript, NodeEntity?, INode>? create)
+        internal NodeData(Plugin plugin, Type type, string name, string description, string category, Type? inputType, Type? outputType, Func<INodeScript, NodeEntity?, INode>? create)
         {
             this.Plugin = plugin;
             this.Type = type;
             this.Name = name;
             this.Description = description;
             this.Category = category;
+            this.InputType = inputType;
+            this.OutputType = outputType;
             this._create = create;
         }
 

src/Artemis.VisualScripting/Behaviors/HighlightTermBehavior.cs

@@ -0,0 +1,169 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text.RegularExpressions;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Documents;
+using System.Windows.Media;
+
+namespace Artemis.VisualScripting.Behaviors
+{
+    // Source: https://stackoverflow.com/a/60474831/5015269
+    // Made some changes to add a foreground and background property
+    public static class HighlightTermBehavior
+    {
+        public static readonly DependencyProperty TextProperty = DependencyProperty.RegisterAttached(
+            "Text",
+            typeof(string),
+            typeof(HighlightTermBehavior),
+            new FrameworkPropertyMetadata("", OnTextChanged));
+
+        public static readonly DependencyProperty TermToBeHighlightedProperty = DependencyProperty.RegisterAttached(
+            "TermToBeHighlighted",
+            typeof(string),
+            typeof(HighlightTermBehavior),
+            new FrameworkPropertyMetadata("", OnTextChanged));
+
+        public static readonly DependencyProperty HighlightForegroundProperty = DependencyProperty.RegisterAttached(
+            "HighlightForeground",
+            typeof(Color?),
+            typeof(HighlightTermBehavior),
+            new FrameworkPropertyMetadata(null, OnTextChanged));
+
+        public static readonly DependencyProperty HighlightBackgroundProperty = DependencyProperty.RegisterAttached(
+            "HighlightBackground",
+            typeof(Color?),
+            typeof(HighlightTermBehavior),
+            new FrameworkPropertyMetadata(null, OnTextChanged));
+
+        public static string GetText(FrameworkElement frameworkElement)
+        {
+            return (string) frameworkElement.GetValue(TextProperty);
+        }
+
+        public static void SetText(FrameworkElement frameworkElement, string value)
+        {
+            frameworkElement.SetValue(TextProperty, value);
+        }
+
+        public static string GetTermToBeHighlighted(FrameworkElement frameworkElement)
+        {
+            return (string) frameworkElement.GetValue(TermToBeHighlightedProperty);
+        }
+
+        public static void SetTermToBeHighlighted(FrameworkElement frameworkElement, string value)
+        {
+            frameworkElement.SetValue(TermToBeHighlightedProperty, value);
+        }
+
+        public static void SetHighlightForeground(FrameworkElement frameworkElement, Color? value)
+        {
+            frameworkElement.SetValue(HighlightForegroundProperty, value);
+        }
+
+        public static Color? GetHighlightForeground(FrameworkElement frameworkElement)
+        {
+            return (Color?) frameworkElement.GetValue(HighlightForegroundProperty);
+        }
+
+        public static void SetHighlightBackground(FrameworkElement frameworkElement, Color? value)
+        {
+            frameworkElement.SetValue(HighlightBackgroundProperty, value);
+        }
+
+        public static Color? GetHighlightBackground(FrameworkElement frameworkElement)
+        {
+            return (Color?) frameworkElement.GetValue(HighlightBackgroundProperty);
+        }
+
+        public static List<string> SplitTextIntoTermAndNotTermParts(string text, string term)
+        {
+            if (string.IsNullOrEmpty(text))
+                return new List<string> {string.Empty};
+
+            return Regex.Split(text, $@"({Regex.Escape(term)})", RegexOptions.IgnoreCase)
+                .Where(p => p != string.Empty)
+                .ToList();
+        }
+
+
+        private static void OnTextChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
+        {
+            if (d is TextBlock textBlock)
+                SetTextBlockTextAndHighlightTerm(textBlock, GetText(textBlock), GetTermToBeHighlighted(textBlock));
+        }
+
+        private static void SetTextBlockTextAndHighlightTerm(TextBlock textBlock, string text, string termToBeHighlighted)
+        {
+            textBlock.Text = string.Empty;
+
+            if (TextIsEmpty(text))
+                return;
+
+            if (TextIsNotContainingTermToBeHighlighted(text, termToBeHighlighted))
+            {
+                AddPartToTextBlock(textBlock, text);
+                return;
+            }
+
+            List<string> textParts = SplitTextIntoTermAndNotTermParts(text, termToBeHighlighted);
+
+            foreach (string textPart in textParts)
+                AddPartToTextBlockAndHighlightIfNecessary(textBlock, termToBeHighlighted, textPart);
+        }
+
+        private static bool TextIsEmpty(string text)
+        {
+            return string.IsNullOrEmpty(text);
+        }
+
+        private static bool TextIsNotContainingTermToBeHighlighted(string text, string termToBeHighlighted)
+        {
+            if (text == null || termToBeHighlighted == null)
+                return true;
+            return text.Contains(termToBeHighlighted, StringComparison.OrdinalIgnoreCase) == false;
+        }
+
+        private static void AddPartToTextBlockAndHighlightIfNecessary(TextBlock textBlock, string termToBeHighlighted, string textPart)
+        {
+            if (textPart.Equals(termToBeHighlighted, StringComparison.OrdinalIgnoreCase))
+                AddHighlightedPartToTextBlock(textBlock, textPart);
+            else
+                AddPartToTextBlock(textBlock, textPart);
+        }
+
+        private static void AddPartToTextBlock(TextBlock textBlock, string part)
+        {
+            textBlock.Inlines.Add(new Run {Text = part});
+        }
+
+        private static void AddHighlightedPartToTextBlock(TextBlock textBlock, string part)
+        {
+            Color? foreground = GetHighlightForeground(textBlock);
+            Color? background = GetHighlightBackground(textBlock);
+
+            if (background == null)
+            {
+                Run run = new() {Text = part, FontWeight = FontWeights.ExtraBold};
+                if (foreground != null)
+                    run.Foreground = new SolidColorBrush(foreground.Value);
+                textBlock.Inlines.Add(run);
+                return;
+            }
+
+            Border border = new()
+            {
+                Background = new SolidColorBrush(background.Value),
+                BorderThickness = new Thickness(0),
+                CornerRadius = new CornerRadius(2),
+                Child = new TextBlock {Text = part, FontWeight = FontWeights.Bold},
+                Padding = new Thickness(1),
+                Margin = new Thickness(-1, -5, -1, -5)
+            };
+            if (foreground != null)
+                ((TextBlock) border.Child).Foreground = new SolidColorBrush(foreground.Value);
+            textBlock.Inlines.Add(border);
+        }
+    }
+}

src/Artemis.VisualScripting/Editor/Controls/VisualScriptNodeCreationBox.cs

@@ -6,6 +6,7 @@ using System.Windows.Controls;
 using System.Windows.Data;
 using System.Windows.Input;
 using Artemis.Core;
+using Artemis.VisualScripting.Editor.Controls.Wrapper;
 
 namespace Artemis.VisualScripting.Editor.Controls
 {
@@ -37,16 +38,26 @@ namespace Artemis.VisualScripting.Editor.Controls
 
         public IEnumerable AvailableNodes
         {
-            get => (IEnumerable)GetValue(AvailableNodesProperty);
+            get => (IEnumerable) GetValue(AvailableNodesProperty);
             set => SetValue(AvailableNodesProperty, value);
         }
 
+        public static readonly DependencyProperty SourcePinProperty = DependencyProperty.Register(
+            "SourcePin", typeof(VisualScriptPin), typeof(VisualScriptNodeCreationBox), new PropertyMetadata(default(VisualScriptPin), OnSourcePinChanged));
+
+        public VisualScriptPin SourcePin
+        {
+            get => (VisualScriptPin) GetValue(SourcePinProperty);
+            set => SetValue(SourcePinProperty, value);
+        }
+
+
         public static readonly DependencyProperty CreateNodeCommandProperty = DependencyProperty.Register(
             "CreateNodeCommand", typeof(ICommand), typeof(VisualScriptNodeCreationBox), new PropertyMetadata(default(ICommand)));
 
         public ICommand CreateNodeCommand
         {
-            get => (ICommand)GetValue(CreateNodeCommandProperty);
+            get => (ICommand) GetValue(CreateNodeCommandProperty);
             set => SetValue(CreateNodeCommandProperty, value);
         }
 
@@ -63,12 +74,23 @@ namespace Artemis.VisualScripting.Editor.Controls
             _contentList.IsSynchronizedWithCurrentItem = false;
             _contentList.SelectionChanged += OnContentListSelectionChanged;
             _contentList.SelectionMode = SelectionMode.Single;
+            IsVisibleChanged += OnIsVisibleChanged;
 
             _searchBox.Focus();
             _contentView?.Refresh();
             ItemsSourceChanged();
         }
 
+        private void OnIsVisibleChanged(object sender, DependencyPropertyChangedEventArgs e)
+        {
+            if (e.NewValue is not true)
+                return;
+
+            _searchBox.Focus();
+            _searchBox.SelectionStart = 0;
+            _searchBox.SelectionLength = _searchBox.Text.Length;
+        }
+
         private void OnSearchBoxTextChanged(object sender, TextChangedEventArgs args)
         {
             _contentView?.Refresh();
@@ -86,7 +108,14 @@ namespace Artemis.VisualScripting.Editor.Controls
             if (_searchBox == null) return false;
             if (o is not NodeData nodeData) return false;
 
-            return nodeData.Name.Contains(_searchBox.Text, StringComparison.OrdinalIgnoreCase);
+            bool nameContains = nodeData.Name.Contains(_searchBox.Text, StringComparison.OrdinalIgnoreCase);
+
+            if (SourcePin == null || SourcePin.Pin.Type == typeof(object))
+                return nameContains;
+
+            if (SourcePin.Pin.Direction == PinDirection.Input)
+                return nameContains && (nodeData.OutputType == typeof(object) || nodeData.OutputType == SourcePin.Pin.Type);
+            return nameContains && (nodeData.InputType == typeof(object) || nodeData.InputType == SourcePin.Pin.Type);
         }
 
         private void ItemsSourceChanged()
@@ -100,7 +129,16 @@ namespace Artemis.VisualScripting.Editor.Controls
             }
             else
             {
-                _collectionViewSource = new CollectionViewSource { Source = AvailableNodes, SortDescriptions = { new SortDescription("Name", ListSortDirection.Ascending)}};
+                _collectionViewSource = new CollectionViewSource
+                {
+                    Source = AvailableNodes,
+                    SortDescriptions =
+                    {
+                        new SortDescription(nameof(NodeData.Category), ListSortDirection.Ascending),
+                        new SortDescription(nameof(NodeData.Name), ListSortDirection.Ascending)
+                    },
+                    GroupDescriptions = {new PropertyGroupDescription(nameof(NodeData.Category))}
+                };
                 _contentView = _collectionViewSource.View;
                 _contentView.Filter += Filter;
             }
@@ -110,6 +148,8 @@ namespace Artemis.VisualScripting.Editor.Controls
 
         private static void OnItemsSourceChanged(DependencyObject d, DependencyPropertyChangedEventArgs args) => (d as VisualScriptNodeCreationBox)?.ItemsSourceChanged();
 
+        private static void OnSourcePinChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) => (d as VisualScriptNodeCreationBox)?._contentView.Refresh();
+
         #endregion
     }
 }

src/Artemis.VisualScripting/Editor/Controls/VisualScriptPresenter.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.ComponentModel;
+using System.Linq;
 using System.Runtime.CompilerServices;
 using System.Windows;
 using System.Windows.Controls;
@@ -65,7 +66,7 @@ namespace Artemis.VisualScripting.Editor.Controls
 
         public INodeScript Script
         {
-            get => (INodeScript)GetValue(ScriptProperty);
+            get => (INodeScript) GetValue(ScriptProperty);
             set => SetValue(ScriptProperty, value);
         }
 
@@ -74,7 +75,7 @@ namespace Artemis.VisualScripting.Editor.Controls
 
         public double Scale
         {
-            get => (double)GetValue(ScaleProperty);
+            get => (double) GetValue(ScaleProperty);
             set => SetValue(ScaleProperty, value);
         }
 
@@ -83,7 +84,7 @@ namespace Artemis.VisualScripting.Editor.Controls
 
         public double MinScale
         {
-            get => (double)GetValue(MinScaleProperty);
+            get => (double) GetValue(MinScaleProperty);
             set => SetValue(MinScaleProperty, value);
         }
 
@@ -92,7 +93,7 @@ namespace Artemis.VisualScripting.Editor.Controls
 
         public double MaxScale
         {
-            get => (double)GetValue(MaxScaleProperty);
+            get => (double) GetValue(MaxScaleProperty);
             set => SetValue(MaxScaleProperty, value);
         }
 
@@ -101,7 +102,7 @@ namespace Artemis.VisualScripting.Editor.Controls
 
         public double ScaleFactor
         {
-            get => (double)GetValue(ScaleFactorProperty);
+            get => (double) GetValue(ScaleFactorProperty);
             set => SetValue(ScaleFactorProperty, value);
         }
 
@@ -110,7 +111,7 @@ namespace Artemis.VisualScripting.Editor.Controls
 
         public IEnumerable<NodeData> AvailableNodes
         {
-            get => (IEnumerable<NodeData>)GetValue(AvailableNodesProperty);
+            get => (IEnumerable<NodeData>) GetValue(AvailableNodesProperty);
             set => SetValue(AvailableNodesProperty, value);
         }
 
@@ -119,16 +120,25 @@ namespace Artemis.VisualScripting.Editor.Controls
 
         public bool AlwaysShowValues
         {
-            get => (bool)GetValue(AlwaysShowValuesProperty);
+            get => (bool) GetValue(AlwaysShowValuesProperty);
             set => SetValue(AlwaysShowValuesProperty, value);
         }
 
+        public static readonly DependencyProperty SourcePinProperty = DependencyProperty.Register(
+            "SourcePin", typeof(VisualScriptPin), typeof(VisualScriptPresenter), new PropertyMetadata(default(VisualScriptPin)));
+
+        public VisualScriptPin SourcePin
+        {
+            get => (VisualScriptPin) GetValue(SourcePinProperty);
+            set => SetValue(SourcePinProperty, value);
+        }
+
         public static readonly DependencyProperty CreateNodeCommandProperty = DependencyProperty.Register(
             "CreateNodeCommand", typeof(ICommand), typeof(VisualScriptPresenter), new PropertyMetadata(default(ICommand)));
 
         public ICommand CreateNodeCommand
         {
-            get => (ICommand)GetValue(CreateNodeCommandProperty);
+            get => (ICommand) GetValue(CreateNodeCommandProperty);
             private set => SetValue(CreateNodeCommandProperty, value);
         }
 
@@ -137,7 +147,7 @@ namespace Artemis.VisualScripting.Editor.Controls
 
         public int GridSize
         {
-            get => (int)GetValue(GridSizeProperty);
+            get => (int) GetValue(GridSizeProperty);
             set => SetValue(GridSizeProperty, value);
         }
 
@@ -146,7 +156,7 @@ namespace Artemis.VisualScripting.Editor.Controls
 
         public int SurfaceSize
         {
-            get => (int)GetValue(SurfaceSizeProperty);
+            get => (int) GetValue(SurfaceSizeProperty);
             set => SetValue(SurfaceSizeProperty, value);
         }
 
@@ -155,7 +165,7 @@ namespace Artemis.VisualScripting.Editor.Controls
 
         public bool AutoFitScript
         {
-            get => (bool)GetValue(AutoFitScriptProperty);
+            get => (bool) GetValue(AutoFitScriptProperty);
             set => SetValue(AutoFitScriptProperty, value);
         }
 
@@ -194,7 +204,7 @@ namespace Artemis.VisualScripting.Editor.Controls
             _canvas.MouseMove += OnCanvasMouseMove;
             _canvas.MouseWheel += OnCanvasMouseWheel;
             _canvas.DragOver += OnCanvasDragOver;
-
+            _canvas.Drop += OnCanvasDrop;
             _nodeList.ItemsSource = VisualScript?.Nodes;
             _cableList.ItemsSource = VisualScript?.Cables;
         }
@@ -387,6 +397,34 @@ namespace Artemis.VisualScripting.Editor.Controls
                 VisualScript.OnDragOver(args.GetPosition(_canvas));
         }
 
+        private void OnCanvasDrop(object sender, DragEventArgs args)
+        {
+            if (!args.Data.GetDataPresent(typeof(VisualScriptPin))) return;
+
+            VisualScriptPin sourcePin = (VisualScriptPin) args.Data.GetData(typeof(VisualScriptPin));
+            if (sourcePin == null) return;
+
+            if (_creationBoxParent.ContextMenu != null)
+            {
+                SourcePin = sourcePin;
+
+                _lastRightClickLocation = args.GetPosition(_canvas);
+                _creationBoxParent.ContextMenu.IsOpen = true;
+                _creationBoxParent.ContextMenu.DataContext = this;
+
+                void ContextMenuOnClosed(object s, RoutedEventArgs e)
+                {
+                    SourcePin = null;
+                    if (_creationBoxParent.ContextMenu != null)
+                        _creationBoxParent.ContextMenu.Closed -= ContextMenuOnClosed;
+                }
+
+                _creationBoxParent.ContextMenu.Closed += ContextMenuOnClosed;
+            }
+
+            args.Handled = true;
+        }
+
         private void OnCanvasMouseWheel(object sender, MouseWheelEventArgs args)
         {
             if (AutoFitScript)
@@ -415,8 +453,8 @@ namespace Artemis.VisualScripting.Editor.Controls
 
             for (int i = 0; i < _nodeList.Items.Count; i++)
             {
-                ContentPresenter nodeControl = (ContentPresenter)_nodeList.ItemContainerGenerator.ContainerFromIndex(i);
-                VisualScriptNode node = (VisualScriptNode)nodeControl.Content;
+                ContentPresenter nodeControl = (ContentPresenter) _nodeList.ItemContainerGenerator.ContainerFromIndex(i);
+                VisualScriptNode node = (VisualScriptNode) nodeControl.Content;
 
                 double nodeWidth = nodeControl.ActualWidth;
                 double nodeHeight = nodeControl.ActualHeight;
@@ -492,14 +530,32 @@ namespace Artemis.VisualScripting.Editor.Controls
         {
             if (nodeData == null) return;
 
-            if (_creationBoxParent.ContextMenu != null)
-                _creationBoxParent.ContextMenu.IsOpen = false;
-
             INode node = nodeData.CreateNode(Script, null);
             node.Initialize(Script);
             node.X = _lastRightClickLocation.X - VisualScript.LocationOffset;
             node.Y = _lastRightClickLocation.Y - VisualScript.LocationOffset;
 
+            if (SourcePin != null)
+            {
+                // Connect to the first matching input or output pin
+                List<IPin> pins = node.Pins.ToList();
+                pins.AddRange(node.PinCollections.SelectMany(c => c));
+                pins = pins.Where(p => p.Type == typeof(object) || p.Type == SourcePin.Pin.Type).OrderBy(p => p.Type != typeof(object)).ToList();
+                
+                IPin preferredPin = SourcePin.Pin.Direction == PinDirection.Input
+                    ? pins.FirstOrDefault(p => p.Direction == PinDirection.Output)
+                    : pins.FirstOrDefault(p => p.Direction == PinDirection.Input);
+
+                if (preferredPin != null)
+                {
+                    preferredPin.ConnectTo(SourcePin.Pin);
+                    SourcePin.Pin.ConnectTo(preferredPin);
+                }
+            }
+
+            if (_creationBoxParent.ContextMenu != null)
+                _creationBoxParent.ContextMenu.IsOpen = false;
+
             Script.AddNode(node);
         }
 
@@ -549,6 +605,7 @@ namespace Artemis.VisualScripting.Editor.Controls
                 T result = (child as T) ?? GetChildOfType<T>(child);
                 if (result != null) return result;
             }
+
             return null;
         }
 

src/Artemis.VisualScripting/Editor/Styles/VisualScriptNodeCreationBox.xaml

@@ -1,11 +1,18 @@
 <ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
                     xmlns:controls="clr-namespace:Artemis.VisualScripting.Editor.Controls"
-                    xmlns:core="clr-namespace:Artemis.Core;assembly=Artemis.Core">
+                    xmlns:core="clr-namespace:Artemis.Core;assembly=Artemis.Core"
+                    xmlns:behaviors="clr-namespace:Artemis.VisualScripting.Behaviors">
 
     <DataTemplate x:Key="TemplateNodeItem"
                   DataType="{x:Type core:NodeData}">
-        <TextBlock Text="{Binding Name}" />
+        <TextBlock Margin="8 0 0 0"
+                   Text="{Binding Name}"
+                   ToolTip="{Binding Description}" 
+                   behaviors:HighlightTermBehavior.TermToBeHighlighted="{Binding Text, ElementName=PART_SearchBox}"
+                   behaviors:HighlightTermBehavior.Text="{Binding Name}"
+                   behaviors:HighlightTermBehavior.HighlightForeground="{StaticResource Primary600Foreground}"
+                   behaviors:HighlightTermBehavior.HighlightBackground="{StaticResource Primary600}"/>
     </DataTemplate>
 
     <ControlTemplate x:Key="TemplateVisualScriptNodeCreationBox"
@@ -15,7 +22,7 @@
                 BorderThickness="{TemplateBinding BorderThickness}">
             <Grid>
                 <Grid.RowDefinitions>
-                    <RowDefinition Height="Auto"/>
+                    <RowDefinition Height="Auto" />
                     <RowDefinition Height="*" />
                 </Grid.RowDefinitions>
 
@@ -34,7 +41,37 @@
                          Background="Transparent"
                          Foreground="#FFFFFFFF"
                          BorderThickness="0"
-                         ItemTemplate="{StaticResource TemplateNodeItem}" />
+                         ItemTemplate="{StaticResource TemplateNodeItem}">
+                    <ListBox.GroupStyle>
+                        <GroupStyle>
+                            <GroupStyle.ContainerStyle>
+                                <Style TargetType="{x:Type GroupItem}">
+                                    <Setter Property="Template">
+                                        <Setter.Value>
+                                            <ControlTemplate>
+                                                <Expander Header="{Binding Name}" IsExpanded="True">
+                                                    <Expander.HeaderTemplate>
+                                                        <DataTemplate>
+                                                            <TextBlock Text="{Binding}" FontWeight="Bold" FontSize="16" Margin="0 8 8 8" />
+                                                        </DataTemplate>
+                                                    </Expander.HeaderTemplate>
+                                                    <Expander.Style>
+                                                        <Style TargetType="Expander">
+                                                            <Setter Property="Foreground" Value="AliceBlue"></Setter>
+                                                        </Style>
+                                                    </Expander.Style>
+                                                    <ItemsPresenter />
+                                                </Expander>
+                                            </ControlTemplate>
+                                        </Setter.Value>
+                                    </Setter>
+                                </Style>
+                            </GroupStyle.ContainerStyle>
+                        </GroupStyle>
+                    </ListBox.GroupStyle>
+                </ListBox>
+
+
             </Grid>
         </Border>
     </ControlTemplate>

src/Artemis.VisualScripting/Editor/Styles/VisualScriptPresenter.xaml

@@ -15,6 +15,7 @@
                             <ControlTemplate>
                                 <Border Width="700" Height="300">
                                     <controls:VisualScriptNodeCreationBox AvailableNodes="{Binding AvailableNodes}"
+                                                                          SourcePin="{Binding SourcePin}"
                                                                           CreateNodeCommand="{Binding CreateNodeCommand}" />
                                 </Border>
                             </ControlTemplate>

src/Artemis.VisualScripting/Nodes/BoolOperations.cs

@@ -3,7 +3,7 @@ using Artemis.Core;
 
 namespace Artemis.VisualScripting.Nodes
 {
-    [Node("Greater than", "Checks if the first input is greater than the second.")]
+    [Node("Greater than", "Checks if the first input is greater than the second.", "Operators", InputType = typeof(object), OutputType = typeof(bool))]
     public class GreaterThanNode : Node
     {
         #region Properties & Fields
@@ -44,7 +44,7 @@ namespace Artemis.VisualScripting.Nodes
         #endregion
     }
 
-    [Node("Less than", "Checks if the first input is less than the second.")]
+    [Node("Less than", "Checks if the first input is less than the second.", "Operators", InputType = typeof(object), OutputType = typeof(bool))]
     public class LessThanNode : Node
     {
         #region Properties & Fields
@@ -85,7 +85,7 @@ namespace Artemis.VisualScripting.Nodes
         #endregion
     }
 
-    [Node("Equals", "Checks if the two inputs are equals.")]
+    [Node("Equals", "Checks if the two inputs are equals.", "Operators", InputType = typeof(bool), OutputType = typeof(bool))]
     public class EqualsNode : Node
     {
         #region Properties & Fields
@@ -126,7 +126,7 @@ namespace Artemis.VisualScripting.Nodes
         #endregion
     }
 
-    [Node("Negate", "Negates the boolean.")]
+    [Node("Negate", "Negates the boolean.", "Operators", InputType = typeof(bool), OutputType = typeof(bool))]
     public class NegateNode : Node
     {
         #region Properties & Fields

src/Artemis.VisualScripting/Nodes/Color/BrightenSKColorNode.cs

@@ -3,7 +3,7 @@ using SkiaSharp;
 
 namespace Artemis.VisualScripting.Nodes.Color
 {
-    [Node("Brighten Color", "Brightens a color by a specified amount in percent")]
+    [Node("Brighten Color", "Brightens a color by a specified amount in percent", "Color", InputType = typeof(SKColor), OutputType = typeof(SKColor))]
     public class BrightenSKColorNode : Node
     {
         public BrightenSKColorNode() : base("Brighten Color", "Brightens a color by a specified amount in percent")
@@ -20,7 +20,7 @@ namespace Artemis.VisualScripting.Nodes.Color
         public override void Evaluate()
         {
             Input.Value.ToHsl(out float h, out float s, out float l);
-            l *= (Percentage.Value + 100f) / 100f;
+            l += l * (Percentage.Value / 100f);
             Output.Value = SKColor.FromHsl(h, s, l);
         }
     }

src/Artemis.VisualScripting/Nodes/Color/DarkenSKColorNode.cs

@@ -3,7 +3,7 @@ using SkiaSharp;
 
 namespace Artemis.VisualScripting.Nodes.Color
 {
-    [Node("Darken Color", "Darkens a color by a specified amount in percent")]
+    [Node("Darken Color", "Darkens a color by a specified amount in percent", "Color", InputType = typeof(SKColor), OutputType = typeof(SKColor))]
     public class DarkenSKColorNode : Node
     {
         public DarkenSKColorNode() : base("Darken Color", "Darkens a color by a specified amount in percent")
@@ -20,7 +20,7 @@ namespace Artemis.VisualScripting.Nodes.Color
         public override void Evaluate()
         {
             Input.Value.ToHsl(out float h, out float s, out float l);
-            l *= (Percentage.Value * -1 + 100f) / 100f;
+            l -= l * (Percentage.Value / 100f);
             Output.Value = SKColor.FromHsl(h, s, l);
         }
     }

src/Artemis.VisualScripting/Nodes/Color/DesaturateSKColorNode.cs

@@ -4,7 +4,7 @@ using SkiaSharp;
 
 namespace Artemis.VisualScripting.Nodes.Color
 {
-    [Node("Desaturate Color", "Desaturates a color by a specified amount in percent")]
+    [Node("Desaturate Color", "Desaturates a color by a specified amount in percent", "Color", InputType = typeof(SKColor), OutputType = typeof(SKColor))]
     public class DesaturateSKColorNode : Node
     {
         public DesaturateSKColorNode() : base("Desaturate Color", "Desaturates a color by a specified amount in percent")
@@ -21,9 +21,8 @@ namespace Artemis.VisualScripting.Nodes.Color
         public override void Evaluate()
         {
             Input.Value.ToHsl(out float h, out float s, out float l);
-            s -= Percentage.Value;
-            s = Math.Clamp(s, 0, 100);
-            Output.Value = SKColor.FromHsl(h, s, l);
+            s -= s * (Percentage.Value / 100f);
+            Output.Value = SKColor.FromHsl(h, Math.Clamp(s, 0f, 100f), l);
         }
     }
 }

src/Artemis.VisualScripting/Nodes/Color/HslSKColorNode.cs

@@ -3,7 +3,7 @@ using SkiaSharp;
 
 namespace Artemis.VisualScripting.Nodes.Color
 {
-    [Node("HSL Color", "Creates a color from hue, saturation and lightness values")]
+    [Node("HSL Color", "Creates a color from hue, saturation and lightness values", "Color", InputType = typeof(float), OutputType = typeof(SKColor))]
     public class HslSKColorNode : Node
     {
         public HslSKColorNode() : base("HSL Color", "Creates a color from hue, saturation and lightness values")

src/Artemis.VisualScripting/Nodes/Color/InvertSKColorNode.cs

@@ -3,7 +3,7 @@ using SkiaSharp;
 
 namespace Artemis.VisualScripting.Nodes.Color
 {
-    [Node("Invert Color", "Inverts a color by a specified amount in percent")]
+    [Node("Invert Color", "Inverts a color by a specified amount in percent", "Color", InputType = typeof(SKColor), OutputType = typeof(SKColor))]
     public class InvertSKColorNode : Node
     {
         public InvertSKColorNode() : base("Invert Color", "Inverts a color")
@@ -17,9 +17,12 @@ namespace Artemis.VisualScripting.Nodes.Color
 
         public override void Evaluate()
         {
-            Input.Value.ToHsl(out float h, out float s, out float l);
-            h += 180;
-            Output.Value = SKColor.FromHsl(h % 360, s, l);
+            Output.Value = new SKColor(
+                (byte) (255 - Input.Value.Red),
+                (byte) (255 - Input.Value.Green),
+                (byte) (255 - Input.Value.Blue),
+                Input.Value.Alpha
+            );
         }
     }
 }

src/Artemis.VisualScripting/Nodes/Color/RotateHueSkColorNode.cs

@@ -3,7 +3,7 @@ using SkiaSharp;
 
 namespace Artemis.VisualScripting.Nodes.Color
 {
-    [Node("Rotate Color Hue", "Rotates the hue of a color by a specified amount in degrees")]
+    [Node("Rotate Color Hue", "Rotates the hue of a color by a specified amount in degrees", "Color", InputType = typeof(SKColor), OutputType = typeof(SKColor))]
     public class RotateHueSKColorNode : Node
     {
         public RotateHueSKColorNode() : base("Rotate Color Hue", "Rotates the hue of a color by a specified amount in degrees")

src/Artemis.VisualScripting/Nodes/Color/SaturateSkColorNode.cs

@@ -4,7 +4,7 @@ using SkiaSharp;
 
 namespace Artemis.VisualScripting.Nodes.Color
 {
-    [Node("Saturate Color", "Saturates a color by a specified amount in percent")]
+    [Node("Saturate Color", "Saturates a color by a specified amount in percent", "Color", InputType = typeof(SKColor), OutputType = typeof(SKColor))]
     public class SaturateSKColorNode : Node
     {
         public SaturateSKColorNode() : base("Saturate Color", "Saturates a color by a specified amount in percent")
@@ -21,9 +21,8 @@ namespace Artemis.VisualScripting.Nodes.Color
         public override void Evaluate()
         {
             Input.Value.ToHsl(out float h, out float s, out float l);
-            s += Percentage.Value;
-            s = Math.Clamp(s, 0, 100);
-            Output.Value = SKColor.FromHsl(h, s, l);
+            s += s * (Percentage.Value / 100f);
+            Output.Value = SKColor.FromHsl(h, Math.Clamp(s, 0f, 100f), l);
         }
     }
 }

src/Artemis.VisualScripting/Nodes/Color/StaticSKColorValueNode.cs

@@ -4,7 +4,7 @@ using SkiaSharp;
 
 namespace Artemis.VisualScripting.Nodes.Color
 {
-    [Node("Color-Value", "Outputs a configurable color value.")]
+    [Node("Color-Value", "Outputs a configurable color value.", "Static", InputType = typeof(SKColor), OutputType = typeof(SKColor))]
     public class StaticSKColorValueNode : Node<StaticSKColorValueNodeCustomViewModel>
     {
         #region Constructors

src/Artemis.VisualScripting/Nodes/Color/SumSKColorsNode.cs

@@ -3,7 +3,7 @@ using SkiaSharp;
 
 namespace Artemis.VisualScripting.Nodes.Color
 {
-    [Node("Sum (Color)", "Sums the connected color values.")]
+    [Node("Sum (Color)", "Sums the connected color values.", "Color", InputType = typeof(SKColor), OutputType = typeof(SKColor))]
     public class SumSKColorsNode : Node
     {
         #region Properties & Fields

src/Artemis.VisualScripting/Nodes/ConvertNodes.cs

@@ -2,7 +2,7 @@
 
 namespace Artemis.VisualScripting.Nodes
 {
-    [Node("To String", "Converts the input to a string.")]
+    [Node("To String", "Converts the input to a string.", "Conversion", InputType = typeof(object), OutputType = typeof(string))]
     public class ConvertToStringNode : Node
     {
         #region Properties & Fields
@@ -34,7 +34,7 @@ namespace Artemis.VisualScripting.Nodes
         #endregion
     }
 
-    [Node("To Integer", "Converts the input to an integer.")]
+    [Node("To Integer", "Converts the input to an integer.", "Conversion", InputType = typeof(object), OutputType = typeof(int))]
     public class ConvertToIntegerNode : Node
     {
         #region Properties & Fields
@@ -80,7 +80,7 @@ namespace Artemis.VisualScripting.Nodes
         #endregion
     }
 
-    [Node("To Double", "Converts the input to a double.")]
+    [Node("To Double", "Converts the input to a double.", "Conversion", InputType = typeof(object), OutputType = typeof(double))]
     public class ConvertToDoubleNode : Node
     {
         #region Properties & Fields
@@ -126,7 +126,7 @@ namespace Artemis.VisualScripting.Nodes
         #endregion
     }
 
-    [Node("To Float", "Converts the input to a float.")]
+    [Node("To Float", "Converts the input to a float.", "Conversion", InputType = typeof(object), OutputType = typeof(float))]
     public class ConvertToFloatNode : Node
     {
         #region Properties & Fields

src/Artemis.VisualScripting/Nodes/DataModelNode.cs

@@ -7,7 +7,7 @@ using Stylet;
 
 namespace Artemis.VisualScripting.Nodes
 {
-    [Node("Data Model-Value", "Outputs a selectable data model value.")]
+    [Node("Data Model-Value", "Outputs a selectable data model value.", "External")]
     public class DataModelNode : Node<DataModelNodeCustomViewModel>, IDisposable
     {
         private DataModelPath _dataModelPath;

src/Artemis.VisualScripting/Nodes/Easing/DoubleEasingNode.cs

@@ -3,7 +3,7 @@ using Artemis.Core;
 
 namespace Artemis.VisualScripting.Nodes.Easing
 {
-    [Node("Double Easing", "Outputs an eased double value")]
+    [Node("Double Easing", "Outputs an eased double value", "Easing", InputType = typeof(double), OutputType = typeof(double))]
     public class DoubleEasingNode : Node
     {
         private DateTime _lastEvaluate = DateTime.MinValue;

src/Artemis.VisualScripting/Nodes/Easing/EasingTypeNode.cs

@@ -3,7 +3,7 @@ using Artemis.VisualScripting.Nodes.Easing.CustomViewModels;
 
 namespace Artemis.VisualScripting.Nodes.Easing
 {
-    [Node("Easing Type", "Outputs a selectable easing type.")]
+    [Node("Easing Type", "Outputs a selectable easing type.", "Easing", OutputType = typeof(Easings.Functions))]
     public class EasingTypeNode : Node<EasingTypeNodeCustomViewModel>
     {
         public EasingTypeNode() : base("Easing Type", "Outputs a selectable easing type.")

src/Artemis.VisualScripting/Nodes/Easing/FloatEasingNode.cs

@@ -3,7 +3,7 @@ using Artemis.Core;
 
 namespace Artemis.VisualScripting.Nodes.Easing
 {
-    [Node("Float Easing", "Outputs an eased float value")]
+    [Node("Float Easing", "Outputs an eased float value", "Easing", InputType = typeof(float), OutputType = typeof(float))]
     public class FloatEasingNode : Node
     {
         private DateTime _lastEvaluate = DateTime.MinValue;

src/Artemis.VisualScripting/Nodes/Easing/IntEasingNode.cs

@@ -3,7 +3,7 @@ using Artemis.Core;
 
 namespace Artemis.VisualScripting.Nodes.Easing
 {
-    [Node("Integer Easing", "Outputs an eased integer value")]
+    [Node("Integer Easing", "Outputs an eased integer value", "Easing", InputType = typeof(int), OutputType = typeof(int))]
     public class IntEasingNode : Node
     {
         private DateTime _lastEvaluate = DateTime.MinValue;

src/Artemis.VisualScripting/Nodes/Easing/SKColorEasingNode.cs

@@ -4,7 +4,7 @@ using SkiaSharp;
 
 namespace Artemis.VisualScripting.Nodes.Easing
 {
-    [Node("Color Easing", "Outputs an eased color value")]
+    [Node("Color Easing", "Outputs an eased color value", "Easing", InputType = typeof(SKColor), OutputType = typeof(SKColor))]
     public class SKColorEasingNode : Node
     {
         private DateTime _lastEvaluate = DateTime.MinValue;

src/Artemis.VisualScripting/Nodes/LayerPropertyNode.cs

@@ -6,7 +6,7 @@ using Artemis.VisualScripting.Nodes.CustomViewModels;
 
 namespace Artemis.VisualScripting.Nodes
 {
-    [Node("Layer/Folder Property", "Outputs the property of a selected layer or folder")]
+    [Node("Layer/Folder Property", "Outputs the property of a selected layer or folder", "External")]
     public class LayerPropertyNode : Node<LayerPropertyNodeCustomViewModel>
     {
         private readonly object _layerPropertyLock = new();

src/Artemis.VisualScripting/Nodes/StaticValueNodes.cs

@@ -3,7 +3,7 @@ using Artemis.VisualScripting.Nodes.CustomViewModels;
 
 namespace Artemis.VisualScripting.Nodes
 {
-    [Node("Integer-Value", "Outputs an configurable integer value.")]
+    [Node("Integer-Value", "Outputs an configurable integer value.", "Static", OutputType = typeof(int))]
     public class StaticIntegerValueNode : Node<StaticIntegerValueNodeCustomViewModel>
     {
         #region Properties & Fields
@@ -34,7 +34,7 @@ namespace Artemis.VisualScripting.Nodes
         #endregion
     }
 
-    [Node("Double-Value", "Outputs a configurable double value.")]
+    [Node("Double-Value", "Outputs a configurable double value.", "Static", OutputType = typeof(double))]
     public class StaticDoubleValueNode : Node<StaticDoubleValueNodeCustomViewModel>
     {
         #region Properties & Fields
@@ -65,7 +65,7 @@ namespace Artemis.VisualScripting.Nodes
         #endregion
     }
 
-    [Node("Float-Value", "Outputs a configurable float value.")]
+    [Node("Float-Value", "Outputs a configurable float value.", "Static", OutputType = typeof(float))]
     public class StaticFloatValueNode : Node<StaticFloatValueNodeCustomViewModel>
     {
         #region Properties & Fields
@@ -99,7 +99,7 @@ namespace Artemis.VisualScripting.Nodes
         #endregion
     }
 
-    [Node("String-Value", "Outputs a configurable string value.")]
+    [Node("String-Value", "Outputs a configurable string value.", "Static", OutputType = typeof(string))]
     public class StaticStringValueNode : Node<StaticStringValueNodeCustomViewModel>
     {
         #region Properties & Fields
@@ -127,8 +127,4 @@ namespace Artemis.VisualScripting.Nodes
         
         #endregion
     }
-
-    #region CustomViewModels
-
-    #endregion
 }

src/Artemis.VisualScripting/Nodes/StringFormatNode.cs

@@ -3,7 +3,7 @@ using Artemis.Core;
 
 namespace Artemis.VisualScripting.Nodes
 {
-    [Node("Format", "Formats the input string.")]
+    [Node("Format", "Formats the input string.", "Text", InputType = typeof(object), OutputType = typeof(string))]
     public class StringFormatNode : Node
     {
         #region Properties & Fields

src/Artemis.VisualScripting/Nodes/SumNode.cs

@@ -3,7 +3,7 @@ using Artemis.Core;
 
 namespace Artemis.VisualScripting.Nodes
 {
-    [Node("Sum (Integer)", "Sums the connected integer values.")]
+    [Node("Sum (Integer)", "Sums the connected integer values.", "Mathematics", InputType = typeof(int), OutputType = typeof(int))]
     public class SumIntegersNode : Node
     {
         #region Properties & Fields
@@ -35,7 +35,7 @@ namespace Artemis.VisualScripting.Nodes
         #endregion
     }
 
-    [Node("Sum (Float)", "Sums the connected float values.")]
+    [Node("Sum (Float)", "Sums the connected float values.", "Mathematics", InputType = typeof(float), OutputType = typeof(float))]
     public class SumFloatsNode : Node
     {
         #region Properties & Fields
@@ -67,7 +67,7 @@ namespace Artemis.VisualScripting.Nodes
         #endregion
     }
 
-    [Node("Sum (Double)", "Sums the connected double values.")]
+    [Node("Sum (Double)", "Sums the connected double values.", "Mathematics", InputType = typeof(double), OutputType = typeof(double))]
     public class SumDoublesNode : Node
     {
         #region Properties & Fields