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MLEM/MLEM.Ui/Elements/RadioButton.cs
2022-06-17 18:23:47 +02:00

50 lines
2.2 KiB
C#

using Microsoft.Xna.Framework;
using MLEM.Ui.Style;
namespace MLEM.Ui.Elements {
/// <summary>
/// A radio button element to use inside of a <see cref="UiSystem"/>.
/// A radio button is a variation of a <see cref="Checkbox"/> that causes all other radio buttons in the same <see cref="RootElement"/> to be deselected upon selection.
/// </summary>
public class RadioButton : Checkbox {
/// <summary>
/// The group that this radio button has.
/// All other radio buttons in the same <see cref="RootElement"/> that have the same group will be deselected when this radio button is selected.
/// </summary>
public string Group;
/// <summary>
/// Creates a new radio button with the given settings
/// </summary>
/// <param name="anchor">The radio button's anchor</param>
/// <param name="size">The radio button's size</param>
/// <param name="label">The label to display next to the radio button</param>
/// <param name="defaultChecked">If the radio button should be checked by default</param>
/// <param name="group">The group that the radio button has</param>
public RadioButton(Anchor anchor, Vector2 size, string label, bool defaultChecked = false, string group = "") :
base(anchor, size, label, defaultChecked) {
this.Group = group;
// don't += because we want to override the checking/unchecking behavior of Checkbox
this.OnPressed = element => {
this.Checked = true;
this.Root.Element.AndChildren(e => {
if (e != this && e is RadioButton r && r.Group == this.Group)
r.Checked = false;
});
};
}
/// <inheritdoc />
protected override void InitStyle(UiStyle style) {
base.InitStyle(style);
this.Texture = this.Texture.OrStyle(style.RadioTexture);
this.HoveredTexture = this.HoveredTexture.OrStyle(style.RadioHoveredTexture);
this.HoveredColor = this.HoveredColor.OrStyle(style.RadioHoveredColor);
this.Checkmark = this.Checkmark.OrStyle(style.RadioCheckmark);
}
}
}