feat(widget): Add GetDisplayedRect and GetTotalDisplayedRect

Author: Alexis Huvier

SharpEngine/Widget/Button.cs

@@ -78,6 +78,9 @@ public Button(Vec2 position, string text = "", string font = "", Vec2? size = nu
         _state = ButtonState.Idle;
     }
 
+    /// <inheritdoc />
+    public override Rect GetDisplayedRect() => new (RealPosition - Size / 2, Size);
+
     /// <inheritdoc />
     public override void Update(float delta)
     {

SharpEngine/Widget/Checkbox.cs

@@ -39,6 +39,9 @@ public Checkbox(Vec2 position, Vec2? size = null, bool isChecked = false) : base
         Size = size ?? new Vec2(20);
         IsChecked = isChecked;
     }
+    
+    /// <inheritdoc />
+    public override Rect GetDisplayedRect() => new (RealPosition - Size / 2, Size);
 
     /// <inheritdoc />
     public override void Update(float delta)

SharpEngine/Widget/ColorRect.cs

@@ -37,6 +37,9 @@ public ColorRect(Vec2 position, Vec2? size = null, Color? color = null, int rota
         Size = size ?? Vec2.One;
         Rotation = rotation;
     }
+    
+    /// <inheritdoc />
+    public override Rect GetDisplayedRect() => new (RealPosition - Size / 2, Size);
 
     /// <inheritdoc />
     public override void Draw()

SharpEngine/Widget/Frame.cs

@@ -45,6 +45,9 @@ public Frame(Vec2 position, Vec2 size, int borderSize = 3, Color? borderColor =
         BorderSize = borderSize;
         BackgroundColor = backgroundColor;
     }
+    
+    /// <inheritdoc />
+    public override Rect GetDisplayedRect() => new (RealPosition - Size / 2, Size);
 
     /// <inheritdoc />
     public override void Draw()

SharpEngine/Widget/Image.cs

@@ -38,6 +38,18 @@ public Image(Vec2 position, string texture = "", Vec2? scale = null, int rotatio
         Rotation = rotation;
     }
 
+    /// <inheritdoc />
+    public override Rect GetDisplayedRect()
+    {
+        var window = Scene?.Window;
+        
+        if(!Displayed || Texture.Length <= 0 || window == null) return new Rect();
+
+        var texture = window.TextureManager.GetTexture(Texture);
+        var size = new Vec2(texture.width * Scale.X, texture.height * Scale.Y);
+        return new Rect(RealPosition - size / 2, size);
+    }
+
     /// <inheritdoc />
     public override void Draw()
     {

SharpEngine/Widget/Label.cs

@@ -70,6 +70,21 @@ public Label(Vec2 position, string text = "", string font = "", Color? color = n
         Style = style;
     }
 
+    /// <inheritdoc />
+    public override Rect GetDisplayedRect()
+    {
+        
+        var font = Scene?.Window?.FontManager.GetFont(Font);
+        
+        if(!Displayed || Scene == null || Text.Length <= 0 || Font.Length <= 0 || font == null) return new Rect();
+
+        var fontSize = FontSize ?? font.Value.baseSize;
+        
+        var textSize = Raylib.MeasureTextEx(font.Value, Text, fontSize, 2);
+
+        return new Rect(RealPosition - (Vec2)textSize / 2, textSize);
+    }
+
     /// <inheritdoc />
     public override void Draw()
     {

SharpEngine/Widget/LineInput.cs

@@ -60,6 +60,9 @@ public LineInput(Vec2 position, string text = "", string font = "", Vec2? size =
         FontSize = fontSize;
         Focused = false;
     }
+    
+    /// <inheritdoc />
+    public override Rect GetDisplayedRect() => new (RealPosition - Size / 2, Size);
 
     /// <inheritdoc />
     public override void Update(float delta)

SharpEngine/Widget/MultiLineInput.cs

@@ -57,6 +57,9 @@ public MultiLineInput(Vec2 position, string text = "", string font = "", Vec2? s
         FontSize = fontSize;
         Focused = false;
     }
+    
+    /// <inheritdoc />
+    public override Rect GetDisplayedRect() => new (RealPosition - Size / 2, Size);
 
     /// <inheritdoc />
     public override void Update(float delta)

SharpEngine/Widget/TextureButton.cs

@@ -77,6 +77,9 @@ public TextureButton(Vec2 position, string text = "", string font = "", string t
         FontSize = fontSize;
         _state = ButtonState.Idle;
     }
+    
+    /// <inheritdoc />
+    public override Rect GetDisplayedRect() => new (RealPosition - Size / 2, Size);
 
     /// <inheritdoc />
     public override void Update(float delta)

SharpEngine/Widget/Widget.cs

@@ -73,6 +73,35 @@ protected Widget(Vec2 position)
         Position = position;
     }
 
+    /// <summary>
+    /// Return Displayed Rect for Widget
+    /// </summary>
+    /// <returns>Rect</returns>
+    public abstract Rect GetDisplayedRect();
+
+    /// <summary>
+    /// Return Displayed Rect for Widget and Children
+    /// </summary>
+    /// <returns>Rect</returns>
+    public Rect GetTotalDisplayedRect()
+    {
+        var rect = GetDisplayedRect();
+        foreach (var child in Children)
+        {
+            var childRect = child.GetDisplayedRect();
+            if (childRect.X < rect.X)
+                rect.X = childRect.X;
+            if (childRect.Y < rect.Y)
+                rect.Y = childRect.Y;
+            if (childRect.X + childRect.Width > rect.X + rect.Width)
+                rect.Width = childRect.X + childRect.Width - rect.X;
+            if (childRect.Y + childRect.Height > rect.Y + rect.Height)
+                rect.Height = childRect.Y + childRect.Height - rect.Y;
+        }
+
+        return rect;
+    }
+    
     /// <summary>
     /// Get All Children of one Type
     /// </summary>