Allow setting a default color for clickable links in UiStyle

CHANGELOG.md

@@ -19,6 +19,7 @@ Improvements
 - Generify GenericFont's string drawing
 - Added InputHandler mouse and touch position querying that preserves the game's viewport
 - Added float version of GetRandomWeightedEntry
+- Allow LinkCode to specify a color to draw with
 
 Fixes
 - **Fixed a formatting Code only knowing about the last Token that it is applied in**
@@ -41,6 +42,7 @@ Improvements
 - Made custom values of Element.Style persist when a new ui style is set
 - Update elements less aggressively when changing a ui system's style
 - Automatically update all elements when changing a ui system's viewport
+- Allow setting a default color for clickable links in UiStyle
 
 Fixes
 - Fixed paragraph links having incorrect hover locations when using special text alignments

Demos/GameImpl.cs

@@ -72,7 +72,7 @@ namespace Demos {
                 IsHidden = true
             });
 
-            selection.AddChild(new Paragraph(Anchor.AutoLeft, 1, "Select the demo you want to see below using your mouse, touch input, your keyboard or a controller. Check the demos' <c CornflowerBlue><l https://github.com/Ellpeck/MLEM/tree/main/Demos>source code</l></c> for more in-depth explanations of their functionality or the <c CornflowerBlue><l https://mlem.ellpeck.de/>website</l></c> for tutorials and API documentation."));
+            selection.AddChild(new Paragraph(Anchor.AutoLeft, 1, "Select the demo you want to see below using your mouse, touch input, your keyboard or a controller. Check the demos' <l https://github.com/Ellpeck/MLEM/tree/main/Demos>source code</l> for more in-depth explanations of their functionality or the <l https://mlem.ellpeck.de/>website</l> for tutorials and API documentation."));
             selection.AddChild(new VerticalSpace(5));
             foreach (var demo in Demos) {
                 selection.AddChild(new Button(Anchor.AutoCenter, new Vector2(1, 10), demo.Key, demo.Value.Item1) {
@@ -99,7 +99,8 @@ namespace Demos {
                 PanelTexture = new NinePatch(new TextureRegion(tex, 0, 8, 24, 24), 8),
                 ButtonTexture = new NinePatch(new TextureRegion(tex, 24, 8, 16, 16), 4),
                 ScrollBarBackground = new NinePatch(new TextureRegion(tex, 12, 0, 4, 8), 1, 1, 2, 2),
-                ScrollBarScrollerTexture = new NinePatch(new TextureRegion(tex, 8, 0, 4, 8), 1, 1, 2, 2)
+                ScrollBarScrollerTexture = new NinePatch(new TextureRegion(tex, 8, 0, 4, 8), 1, 1, 2, 2),
+                LinkColor = Color.CornflowerBlue
             };
         }
 

Demos/UiDemo.cs

@@ -47,7 +47,8 @@ namespace Demos {
                 CheckboxCheckmark = new TextureRegion(this.testTexture, 24, 0, 8, 8),
                 RadioTexture = new NinePatch(new TextureRegion(this.testTexture, 16, 0, 8, 8), 3),
                 RadioCheckmark = new TextureRegion(this.testTexture, 32, 0, 8, 8),
-                AdditionalFonts = {{"Monospaced", new GenericSpriteFont(LoadContent<SpriteFont>("Fonts/MonospacedFont"))}}
+                AdditionalFonts = {{"Monospaced", new GenericSpriteFont(LoadContent<SpriteFont>("Fonts/MonospacedFont"))}},
+                LinkColor = Color.CornflowerBlue
             };
             var untexturedStyle = new UntexturedStyle(this.SpriteBatch) {
                 TextScale = style.TextScale,
@@ -208,7 +209,7 @@ namespace Demos {
             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);
 
-            const string alignText = "Paragraphs can have <c CornflowerBlue><l Left>left</l></c> aligned text, <c CornflowerBlue><l Right>right</l></c> aligned text and <c CornflowerBlue><l Center>center</l></c> aligned text.";
+            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));
             var alignPar = this.root.AddChild(new Paragraph(Anchor.AutoLeft, 1, alignText));
             alignPar.LinkAction = (l, c) => {

MLEM.Ui/Style/UiStyle.cs

@@ -3,6 +3,7 @@ using System.Collections.Generic;
 using Microsoft.Xna.Framework;
 using MLEM.Font;
 using MLEM.Formatting;
+using MLEM.Formatting.Codes;
 using MLEM.Misc;
 using MLEM.Textures;
 using MLEM.Ui.Elements;
@@ -208,6 +209,11 @@ namespace MLEM.Ui.Style {
         /// </summary>
         public SoundEffectInfo ActionSound;
         /// <summary>
+        /// The color that a <see cref="Paragraph"/>'s <see cref="Paragraph.Link"/> codes should have.
+        /// This value is passed to <see cref="LinkCode"/>.
+        /// </summary>
+        public Color? LinkColor;
+        /// <summary>
         /// A set of additional fonts that can be used for the <c>&lt;f FontName&gt;</c> formatting code
         /// </summary>
         public Dictionary<string, GenericFont> AdditionalFonts = new Dictionary<string, GenericFont>();

MLEM.Ui/UiSystem.cs

@@ -241,7 +241,8 @@ namespace MLEM.Ui {
 
             this.TextFormatter = new TextFormatter();
             this.TextFormatter.Codes.Add(new Regex("<l(?: ([^>]+))?>"), (f, m, r) => new LinkCode(m, r, 1 / 16F, 0.85F,
-                t => this.Controls.MousedElement is Paragraph.Link l1 && l1.Token == t || this.Controls.TouchedElement is Paragraph.Link l2 && l2.Token == t));
+                t => this.Controls.MousedElement is Paragraph.Link l1 && l1.Token == t || this.Controls.TouchedElement is Paragraph.Link l2 && l2.Token == t,
+                this.Style.LinkColor));
             this.TextFormatter.Codes.Add(new Regex("<f ([^>]+)>"), (_, m, r) => new FontCode(m, r,
                 f => this.Style.AdditionalFonts != null && this.Style.AdditionalFonts.TryGetValue(m.Groups[1].Value, out var c) ? c : f));
         }

MLEM/Formatting/Codes/LinkCode.cs

@@ -9,10 +9,12 @@ namespace MLEM.Formatting.Codes {
     public class LinkCode : UnderlineCode {
 
         private readonly Func<Token, bool> isSelected;
+        private readonly Color? color;
 
         /// <inheritdoc />
-        public LinkCode(Match match, Regex regex, float thickness, float yOffset, Func<Token, bool> isSelected) : base(match, regex, thickness, yOffset) {
+        public LinkCode(Match match, Regex regex, float thickness, float yOffset, Func<Token, bool> isSelected, Color? color = null) : base(match, regex, thickness, yOffset) {
             this.isSelected = isSelected;
+            this.color = color;
         }
 
         /// <summary>
@@ -27,6 +29,11 @@ namespace MLEM.Formatting.Codes {
             return false;
         }
 
+        /// <inheritdoc />
+        public override Color? GetColor(Color defaultPick) {
+            return this.color;
+        }
+
         /// <inheritdoc />
         public override bool DrawCharacter(GameTime time, SpriteBatch batch, char c, string cString, Token token, int indexInToken, ref Vector2 pos, GenericFont font, ref Color color, ref float scale, float depth) {
             // since we inherit from UnderlineCode, we can just call base if selected