No children shrink-wrapping #1 [EXP]

- Implement ButtonLayoutModel.

Author: BirjuVachhani

lib/src/api/models/size.dart

@@ -27,7 +27,7 @@ class SizeC with SerializableMixin, EquatableMixin {
   final double height;
 
   /// An empty size, one with a zero width and a zero height.
-  static SizeC zero = const SizeC(0, 0);
+  static const SizeC zero = SizeC(0, 0);
 
   /// Creates a [SizeC] with the given [width] and [height].
   const SizeC(this.width, this.height);

lib/src/api/nodes/button_node.dart

@@ -131,34 +131,6 @@ class ButtonNode extends SceneNode with CustomPropertiesMixin {
     super.multipleVariables,
   });
 
-  @override
-  BoxConstraintsModel internalConstraints({
-    required SizeFit horizontalFit,
-    required SizeFit verticalFit,
-  }) {
-    final double iconSize =
-        properties.icon.show ? (properties.icon.size ?? 24) : 0;
-    final double gap =
-        !properties.buttonType.isIconButton && properties.icon.show
-            ? properties.gap
-            : 0;
-    // 8 - padding.vertical is used for compact visual density.
-    final SizeC minSize =
-        SizeC(iconSize + gap, iconSize + (8 - padding.vertical));
-
-    return super
-        .internalConstraints(
-          horizontalFit: horizontalFit,
-          verticalFit: verticalFit,
-        )
-        .union(
-          BoxConstraintsModel(
-            minWidth: minSize.width,
-            minHeight: minSize.height,
-          ),
-        );
-  }
-
   @override
   List<TriggerType> get triggerTypes =>
       [TriggerType.click, TriggerType.longPress];

lib/src/api/utils.dart

@@ -31,7 +31,7 @@ abstract class ITextSizeCalculator {
   /// Returns the smallest possible width a [TextNode] can have given the
   /// constraints of its current [NodeBox].
   /// The details are dependant on the implementation.
-  double getBestTextWidthAtCurrentNodeBox();
+  double getBestTextWidthAtCurrentNodeBox(double internalBoxWidth);
 
   /// Returns The minimum height of a defined [TextNode].
   /// The details are dependant on the implementation.