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MLEM/MLEM.Ui/Elements/RadioButton.cs
2020-06-18 17:24:35 +02:00

49 lines
No EOL
2.1 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="Group"/> 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;
foreach (var sib in this.GetSiblings()) {
if (sib is RadioButton radio && radio.Group == this.Group)
radio.Checked = false;
}
};
}
/// <inheritdoc />
protected override void InitStyle(UiStyle style) {
base.InitStyle(style);
this.Texture.SetFromStyle(style.RadioTexture);
this.HoveredTexture.SetFromStyle(style.RadioHoveredTexture);
this.HoveredColor.SetFromStyle(style.RadioHoveredColor);
this.Checkmark.SetFromStyle(style.RadioCheckmark);
}
}
}