63 lines
1.5 KiB
C#
63 lines
1.5 KiB
C#
using System.Numerics;
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using DaggerFramework.Rendering;
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namespace DaggerFramework.UI;
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/// <summary>
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/// A basic container for UI elements. All container's children will update their constraints based on container's sizing and positioning.
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/// </summary>
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public class Container : UIElement
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{
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/// <summary>
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/// Updates the sizes of the container and rearranges its children.
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/// </summary>
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/// <param name="position"></param>
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/// <param name="size"></param>
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public void UpdateRect(Vector2 position, Vector2 size)
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{
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Rect.Position = position;
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UpdateSize(size);
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RearrangeChildren();
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}
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protected void RearrangeChildren()
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{
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int idx = 0;
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foreach (var child in children)
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{
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if (child is Container container)
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{
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container.UpdateRect(Rect.Position, Rect.Size);
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}
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RearrangeChild(idx, child);
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idx++;
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}
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}
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protected virtual void RearrangeChild(int idx, UIElement child) { }
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protected override void OnRender(Renderer renderer)
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{
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}
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private void UpdateSize(Vector2 baseSize)
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{
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if (parent == null)
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{
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Rect.Size = baseSize;
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return;
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}
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if (VerticalSizeFlags == SizeFlags.Fill)
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{
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Rect.Size = new Vector2(Rect.Size.X, baseSize.Y * ExpandRatio.Y);
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}
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if (HorizontalSizeFlags == SizeFlags.Fill)
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{
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Rect.Size = new Vector2(baseSize.X * ExpandRatio.X, Rect.Size.Y);
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}
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}
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} |