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Allow tooltips to display for elements when selected in auto-nav mode

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Ell 2022-04-05 14:42:30 +02:00
parent 30b4d5fc43
commit 393bd9ffe5
4 changed files with 53 additions and 8 deletions
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1
CHANGELOG.md
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@ -59,6 +59,7 @@ Improvements
- Improved gamepad navigation by employing angles between elements
- Prefer elements that have the same parent as the currently selected element when using gamepad navigation
- Allow specifying a custom position for a tooltip to snap to
- Allow tooltips to display for elements when selected in auto-nav mode
Fixes
- Fixed paragraph links having incorrect hover locations when using special text alignments

6
Demos/UiDemo.cs
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@ -208,6 +208,12 @@ namespace Demos {
this.root.AddChild(new VerticalSpace(3));
this.root.AddChild(new Button(Anchor.AutoLeft, new Vector2(1, 10), "Disabled button", "This button can't be clicked or moved to using automatic navigation") {IsDisabled = true}).PositionOffset = new Vector2(0, 1);
this.root.AddChild(new Checkbox(Anchor.AutoLeft, new Vector2(1, 10), "Disabled checkbox") {IsDisabled = true}).PositionOffset = new Vector2(0, 1);
this.root.AddChild(new Button(Anchor.AutoLeft, new Vector2(1, 10), "Disabled tooltip button", "This button can't be clicked, but can be moved to using automatic navigation, and will display its tooltip even when done so.") {
CanSelectDisabled = true,
IsDisabled = true,
Tooltip = {DisplayInAutoNavMode = true},
PositionOffset = new Vector2(0, 1)
});
const string alignText = "Paragraphs can have <l Left>left</l> aligned text, <l Right>right</l> aligned text and <l Center>center</l> aligned text.";
this.root.AddChild(new VerticalSpace(3));

50
MLEM.Ui/Elements/Tooltip.cs
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@ -16,6 +16,10 @@ namespace MLEM.Ui.Elements {
/// </summary>
public StyleProp<Vector2> MouseOffset;
/// <summary>
/// The offset that this tooltip's top center coordinate should have from the bottom center of the element snapped to when <see cref="DisplayInAutoNavMode"/> is true.
/// </summary>
public StyleProp<Vector2> AutoNavOffset;
/// <summary>
/// The amount of time that the mouse has to be over an element before it appears
/// </summary>
public StyleProp<TimeSpan> Delay;
@ -24,17 +28,23 @@ namespace MLEM.Ui.Elements {
/// </summary>
public Paragraph Paragraph;
/// <summary>
/// Determines whether this tooltip should display when <see cref="UiControls.IsAutoNavMode"/> is true, which is when the UI is being controlled using a keyboard or gamepad.
/// If this tooltip is displayed in auto-nav mode, it will display below the selected element with the <see cref="AutoNavOffset"/> applied.
/// </summary>
public bool DisplayInAutoNavMode;
/// <summary>
/// The position that this tooltip should be following (or snapped to) instead of the <see cref="InputHandler.ViewportMousePosition"/>.
/// If this value is unset, <see cref="InputHandler.ViewportMousePosition"/> will be used as the snap position.
/// Note that <see cref="MouseOffset"/> is still applied with this value set.
/// </summary>
public virtual Vector2? SnapPosition { get; set; }
/// <inheritdoc />
public override bool IsHidden => this.autoHidden || base.IsHidden;
private TimeSpan delayCountdown;
private bool autoHidden;
private Element snapElement;
/// <summary>
/// Creates a new tooltip with the given settings
@ -88,6 +98,7 @@ namespace MLEM.Ui.Elements {
base.InitStyle(style);
this.Texture = this.Texture.OrStyle(style.TooltipBackground);
this.MouseOffset = this.MouseOffset.OrStyle(style.TooltipOffset);
this.AutoNavOffset = this.AutoNavOffset.OrStyle(style.TooltipAutoNavOffset);
this.Delay = this.Delay.OrStyle(style.TooltipDelay);
this.ChildPadding = this.ChildPadding.OrStyle(style.TooltipChildPadding);
if (this.Paragraph != null) {
@ -97,12 +108,20 @@ namespace MLEM.Ui.Elements {
}
/// <summary>
/// Causes this tooltip's position to be snapped to the mouse position.
/// Causes this tooltip's position to be snapped to the mouse position, or the <see cref="snapElement"/> if <see cref="DisplayInAutoNavMode"/> is true, or the <see cref="SnapPosition"/> if set.
/// </summary>
public void SnapPositionToMouse() {
Vector2 snapPosition;
if (this.snapElement != null) {
// center our snap position below the snap element
snapPosition = new Vector2(this.snapElement.DisplayArea.Center.X, this.snapElement.DisplayArea.Bottom) + this.AutoNavOffset;
snapPosition.X -= this.DisplayArea.Width / 2F;
} else {
snapPosition = (this.SnapPosition ?? this.Input.ViewportMousePosition.ToVector2()) + this.MouseOffset.Value;
}
var viewport = this.System.Viewport;
var snapPosition = this.SnapPosition ?? this.Input.ViewportMousePosition.ToVector2();
var offset = (snapPosition + this.MouseOffset.Value) / this.Scale;
var offset = snapPosition / this.Scale;
if (offset.X < viewport.X)
offset.X = viewport.X;
if (offset.Y < viewport.Y)
@ -119,8 +138,10 @@ namespace MLEM.Ui.Elements {
/// </summary>
/// <param name="system">The system to add this tooltip to</param>
/// <param name="name">The name that this tooltip should use</param>
public void Display(UiSystem system, string name) {
system.Add(name, this);
/// <returns>Whether this tooltip was successfully added, which is not the case if it is already being displayed currently.</returns>
public bool Display(UiSystem system, string name) {
if (system.Add(name, this) == null)
return false;
if (this.Delay <= TimeSpan.Zero) {
this.IsHidden = false;
this.SnapPositionToMouse();
@ -129,6 +150,7 @@ namespace MLEM.Ui.Elements {
this.delayCountdown = this.Delay;
}
this.autoHidden = false;
return true;
}
/// <summary>
@ -145,8 +167,20 @@ namespace MLEM.Ui.Elements {
/// </summary>
/// <param name="elementToHover">The element that should automatically cause the tooltip to appear and disappear when hovered and not hovered, respectively</param>
public void AddToElement(Element elementToHover) {
elementToHover.OnMouseEnter += element => this.Display(element.System, element.GetType().Name + "Tooltip");
elementToHover.OnMouseExit += element => this.Remove();
elementToHover.OnMouseEnter += e => this.Display(e.System, $"{e.GetType().Name}Tooltip");
elementToHover.OnMouseExit += e => this.Remove();
elementToHover.OnSelected += e => {
if (this.DisplayInAutoNavMode) {
this.snapElement = e;
this.Display(e.System, $"{e.GetType().Name}Tooltip");
}
};
elementToHover.OnDeselected += e => {
if (this.DisplayInAutoNavMode) {
this.Remove();
this.snapElement = null;
}
};
}
private void Init(Element elementToHover) {

4
MLEM.Ui/Style/UiStyle.cs
View file

@ -151,6 +151,10 @@ namespace MLEM.Ui.Style {
/// </summary>
public Vector2 TooltipOffset = new Vector2(8, 16);
/// <summary>
/// The offset of the <see cref="Tooltip"/> element's top center coordinate from the bottom center of the element snapped to when <see cref="Tooltip.DisplayInAutoNavMode"/> is true.
/// </summary>
public Vector2 TooltipAutoNavOffset = new Vector2(0, 8);
/// <summary>
/// The color that the text of a <see cref="Tooltip"/> should have
/// </summary>
public Color TooltipTextColor = Color.White;