Fix various platform issues and slightly improve UI

* Fix crash on lower screen resolutions when clicking on Terminal

Mouse coordinates were not being scaled from screenspace into
canvas space, resulting in a crash when clicking on the Terminal.

Also add documentation for internal VirtualScreen
implementation, and define dynamic properties for
CanvasWidth and CanvasHeight in the UI system.

Issue: #13
Signed-off-by: Ritchie Frodomar <alkalinethunder@gmail.com>

* Remove old GuiService virtual screen and document IVirtualScreen

Whoever wrote that old code was high, fuck... wait a minute...

Signed-off-by: Ritchie Frodomar <alkalinethunder@gmail.com>

* Fix various errors after emergency rebase

* Remove Rider caches

* Attempt to enable Wayland support

* Add support for enabling/disabling Wayland support on Linux

* Move SettingsManager to GameApplication so settings can be loaded before the game engine fully boots.

* Test commit.

Signed-off-by: Ritchie Frodomar <alkalinethunder@gmail.com>

* Move Terminals to their own tile

* Add support for getting CPU name on Windows via registry

* Add support for disabling background blur

* Fix window hints not being restored when switching between main tool tabs

* Testing the DCO acknowledgement job

Signed-off-by: Ritchie Frodomar <alkalinethunder@gmail.com>

.gitignore

@@ -1,3 +1,6 @@
+# Rider caches
+.idea/
+
 # docfx
 api/
 public/

src/.idea/.idea.sociallydistant/.idea/.gitignore

@@ -1,13 +0,0 @@
-# Default ignored files
-/shelf/
-/workspace.xml
-# Rider ignored files
-/contentModel.xml
-/.idea.sociallydistant.iml
-/projectSettingsUpdater.xml
-/modules.xml
-# Editor-based HTTP Client requests
-/httpRequests/
-# Datasource local storage ignored files
-/dataSources/
-/dataSources.local.xml

src/.idea/.idea.sociallydistant/.idea/.name

@@ -1 +0,0 @@
-sociallydistant

src/.idea/.idea.sociallydistant/.idea/encodings.xml

@@ -1,4 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="Encoding" addBOMForNewFiles="with BOM under Windows, with no BOM otherwise" />
-</project>

src/.idea/.idea.sociallydistant/.idea/indexLayout.xml

@@ -1,10 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="UserContentModel">
-    <attachedFolders>
-      <Path>../docs</Path>
-    </attachedFolders>
-    <explicitIncludes />
-    <explicitExcludes />
-  </component>
-</project>

src/.idea/.idea.sociallydistant/.idea/vcs.xml

@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="VcsDirectoryMappings">
-    <mapping directory="$PROJECT_DIR$/.." vcs="Git" />
-  </component>
-</project>

src/AcidicGUI/CustomProperties/FlexPanelProperties.cs

@@ -14,7 +14,7 @@ public sealed class FlexPanelProperties : CustomPropertyObject
         get => proportionalValue;
         set
         {
-            proportionalValue = MathHelper.Clamp(value, 0f, 1f);
+            proportionalValue = Math.Max(0, value);
             Widget.InvalidateLayout();
         }
     }

src/AcidicGUI/Effects/IEffect.cs

@@ -1,5 +1,3 @@
-using Microsoft.Xna.Framework;
-
 namespace AcidicGUI.Effects;
 
 public interface IEffect
@@ -7,5 +5,5 @@ public interface IEffect
     int PassesCount { get; }
     
     void Use(int pass);
-    void UpdateWidgetParameters(float opacity, Matrix widgetTransform);
+    void UpdateOpacity(float opacity);
 }

src/AcidicGUI/GuiManager.cs

@@ -1,5 +1,4 @@
-using AcidicGUI.Animation;
-using AcidicGUI.Events;
+using AcidicGUI.Events;
 using AcidicGUI.Layout;
 using AcidicGUI.Rendering;
 using AcidicGUI.TextRendering;
@@ -48,6 +47,18 @@ public sealed class GuiManager : IFontFamilyProvider
         visualStyleOverride = globalStyle;
     }
 
+    /// <summary>
+    ///     Invalidates the geometry of all interface elements recursively. Use this when changing a global UI setting that affects how all widgets render.
+    ///     Note: This is expensive. That should be obvious. So do not call it every frame.
+    /// </summary>
+    public void InvalidateAllGeometry()
+    {
+        foreach (var toplevel in TopLevels)
+        {
+            toplevel.InvalidateGeometry(true);
+        }
+    }
+    
     public bool IsFocused(Widget widget)
     {
         return widget == keyboardFocus;
@@ -79,7 +90,7 @@ public sealed class GuiManager : IFontFamilyProvider
             ? ButtonState.Pressed
             : ButtonState.Released;
 
-        HandleMouseButton(e.Button, previousState, e.ButtonState, e.Position, Point.Zero);
+        HandleMouseButton(e.Button, previousState, e.ButtonState, TranslateMousePosition(e.Position), Point.Zero);
 
         if (e.ButtonState == ButtonState.Pressed)
         {
@@ -191,11 +202,11 @@ public sealed class GuiManager : IFontFamilyProvider
         var mustRebuildLayout = false;
         var tolerance = 0.001f;
 
-        if (MathF.Abs(screenWidth - context.PhysicalScreenWidth) >= tolerance
-            || MathF.Abs(screenHeight - context.PhysicalScreenHeight) >= tolerance)
+        if (MathF.Abs(screenWidth - context.CanvasWidth) >= tolerance
+            || MathF.Abs(screenHeight - context.CanvasHeight) >= tolerance)
         {
-            screenWidth = context.PhysicalScreenWidth;
-            screenHeight = context.PhysicalScreenHeight;
+            screenWidth = context.CanvasWidth;
+            screenHeight = context.CanvasHeight;
 
             mustRebuildLayout = true;
         }
@@ -211,9 +222,7 @@ public sealed class GuiManager : IFontFamilyProvider
 
     public void Update(float deltaTime)
     {
-        Animator.Update(deltaTime);
-        
-        foreach (Widget widget in this.CollapseChildren())
+        foreach (Widget widget in CollapseChildren())
         {
             if (widget is IUpdateHandler handler)
                 handler.Update(deltaTime);
@@ -232,10 +241,12 @@ public sealed class GuiManager : IFontFamilyProvider
     {
         isRendering = true;
 
-        //renderer.SetLayer(-32768);
+        renderer.SetLayer(-32768);
         
         foreach (Widget widget in topLevels)
-            widget.RenderInternal(renderer, Matrix.Identity);
+            widget.RenderInternal(renderer);
+
+        renderer.RenderBatches();
         
         isRendering = false;
     }
@@ -286,9 +297,9 @@ public sealed class GuiManager : IFontFamilyProvider
     {
         return new Vector2(
             ((float)mousePosition.X / context.GraphicsDevice.PresentationParameters.BackBufferWidth) *
-            context.PhysicalScreenWidth,
+            context.CanvasWidth,
             ((float)mousePosition.Y / context.GraphicsDevice.PresentationParameters.BackBufferHeight) *
-            context.PhysicalScreenHeight
+            context.CanvasHeight
         ).ToPoint();
     }
     

src/AcidicGUI/IGuiContext.cs

@@ -1,28 +1,20 @@
 using AcidicGUI.Effects;
 using AcidicGUI.Layout;
 using AcidicGUI.TextRendering;
-using Microsoft.Xna.Framework;
 using Microsoft.Xna.Framework.Graphics;
 
 namespace AcidicGUI;
 
 public interface IGuiContext
 {
-    int PhysicalScreenWidth { get; }
-    int PhysicalScreenHeight { get; }
+    int PhysicalWidth { get; }
+    int PhysicalHeight { get; }
+    int CanvasWidth { get; }
+    int CanvasHeight { get; }
     GraphicsDevice GraphicsDevice { get; }
 
-    void Render(
-        VertexBuffer vertices,
-        IndexBuffer indices,
-        int offset,
-        int primitiveCount,
-        Texture2D? texture,
-        LayoutRect? clipRect = null,
-        IEffect? effectOverride = null,
-        float opacity = 1,
-        Matrix? widgetTransform = null
-    );
+    void Render(VertexPositionColorTexture[] vertices, int[] indices, Texture2D? texture, LayoutRect? clipRect = null);
+    void Render(VertexBuffer vertices, IndexBuffer indices, int offset, int primitiveCount, Texture2D? texture, LayoutRect? clipRect = null, IEffect? effectOverride = null, float opacity = 1);
 
     /// <summary>
     ///     Renders the user interface to the given RenderTarget2D. Useful for certain widget rendering techniques such as background blurs.

src/AcidicGUI/Rendering/GeometryHelper.cs

@@ -25,6 +25,11 @@ public class GeometryHelper : IFontStashRenderer2
         whiteMesh = new GuiMeshBuilder(this, null, desaturate);
     }
 
+    public void PushLayer()
+    {
+        guiRenderer.PushLayer();
+    }
+
     private void Flush()
     {
         flushedMeshes.Add(whiteMesh.ExportSubMesh());

src/AcidicGUI/Rendering/Vertex.cs

@@ -1,18 +1,15 @@
 using AcidicGUI.Effects;
 using AcidicGUI.Layout;
-using Microsoft.Xna.Framework;
 using Microsoft.Xna.Framework.Graphics;
 
 namespace AcidicGUI.Rendering;
 
 public sealed class GuiRenderer
 {
+    private          GuiBatch?                       whiteBatch;
     private readonly Dictionary<Texture2D, GuiBatch> batches = new();
     private readonly IGuiContext                     context;
-    private readonly Stack<Matrix>                   previousMatrices = new();
-    private          Matrix                          currentMatrix    = Matrix.Identity;
-    private          GuiBatch?                       whiteBatch;
-    private          float                           layer;
+    private          float                             layer;
     
     public GuiRenderer(IGuiContext context)
     {
@@ -21,21 +18,19 @@ public sealed class GuiRenderer
 
     public float Layer => layer;
 
-    public void PushTransformMatrix(Matrix matrix)
+    public void SetLayer(float newLayer)
     {
-        previousMatrices.Push(currentMatrix);
-        currentMatrix *= matrix;
+        layer = newLayer;
     }
     
-    public void PopTransformMatrix()
+    public void PushLayer()
     {
-        if (previousMatrices.Count == 0)
-        {
-            currentMatrix = Matrix.Identity;
-            return;
-        }
+        layer += 0.5f;
+    }
 
-        currentMatrix = previousMatrices.Pop();
+    public void PopLayer()
+    {
+        layer--;
     }
     
     public void RenderGuiMesh(GuiMesh mesh)
@@ -87,10 +82,10 @@ public sealed class GuiRenderer
 
     public void RenderBatches(IEffect? effectOverride = null, float opacity = 1, LayoutRect? clipRect = null)
     {
-        whiteBatch?.DrawBatch(effectOverride, opacity, clipRect, currentMatrix);
+        whiteBatch?.DrawBatch(effectOverride, opacity, clipRect);
         
         foreach (GuiBatch batch in batches.Values)
-            batch.DrawBatch(effectOverride, opacity, clipRect, currentMatrix);
+            batch.DrawBatch(effectOverride, opacity, clipRect);
     }
 
     public void Grab(RenderTarget2D destination)
@@ -170,9 +165,6 @@ public sealed class GuiBatch
     
     public void Submit(GuiSubMesh subMesh)
     {
-        if (subMesh.Vertices.Length == 0 || subMesh.Indices.Length == 0)
-            return;
-        
         if (subMesh.IsNew)
         {
             subMesh.MarkAsOld();
@@ -189,7 +181,7 @@ public sealed class GuiBatch
         cpuIndices.AddRange(subMesh.Indices);
     }
     
-    public void DrawBatch(IEffect? effectOverride, float opacity, LayoutRect? clipRect, Matrix widgetTransform)
+    public void DrawBatch(IEffect? effectOverride, float opacity, LayoutRect? clipRect)
     {
         if (cpuIndices.Count == 0 || cpuVertices.Count == 0)
             return;
@@ -221,7 +213,7 @@ public sealed class GuiBatch
             dirty = false;
         }
 
-        context.Render(vertexBuffer, indexBuffer, 0, cpuIndices.Count / 3, texture, clipRect, effectOverride, opacity, widgetTransform);
+        context.Render(vertexBuffer, indexBuffer, 0, cpuIndices.Count / 3, texture, clipRect, effectOverride, opacity);
         
         cpuVertices.Clear();
         cpuIndices.Clear();