Add new style classes.

Quik/QuikStyle.cs

@@ -1,5 +1,203 @@
+using System;
+using System.Collections.Generic;
+using Quik.Typography;
+
 namespace Quik
 {
+    public enum TextAlignment
+    {
+        Left,
+        Center,
+        Right,
+        Justify
+    }
+
+    public enum TextDecoration
+    {
+        None,
+        Underline,
+        Overline,
+        Strikethrough
+    }
+
+    public enum TextTransform
+    {
+        None,
+        Title,
+        Upper,
+        Lower,
+    }
+
+    public enum ListMarkerType
+    {
+        None,
+        Disc,
+        Circle,
+        FilledSquare,
+        Square,
+        Dash,
+        ArabicNumeral,
+        RomanNumeralUpper,
+        RomanNumeralLower,
+        AlphabetUpper,
+        AlphabetLower,
+        Image
+    }
+
+    public enum ListMarkerPosition
+    {
+        Inside,
+        Outside,
+    }
+
+    public abstract class StyleBase
+    {
+        public abstract object this[string key] { get; set; }
+
+        public QuikColor? Color
+        {
+            get => (QuikColor?)this["color"];
+            set => this["color"] = value;
+        }
+
+        public float? LineHeight
+        {
+            get => (float?)this["line-height"];
+            set => this["line-height"] = value;
+        }
+
+        public float? LetterSpacing
+        {
+            get => (float?)this["letter-spacing"];
+            set => this["letter-spacing"] = value;
+        }
+
+        public TextAlignment? TextAlignment
+        {
+            get => (TextAlignment?)this["text-alignment"];
+            set => this["text-alignment"] = value;
+        }
+
+        public TextDecoration? TextDecoration
+        {
+            get => (TextDecoration?)this["text-decoration"];
+            set => this["text-decoration"] = value;
+        }
+
+        public float? TextIndent
+        {
+            get => (float?)this["text-indent"];
+            set => this["text-indent"] = value;
+        }
+
+        public TextTransform? TextTransform
+        {
+            get => (TextTransform?)this["text-transform"];
+            set => this["text-transform"] = value;
+        }
+
+        public ListMarkerType? ListMarker
+        {
+            get => (ListMarkerType?)this["list-marker"];
+            set => this["list-marker"] = value;
+        }
+
+        public ListMarkerPosition? ListMarkerPosition
+        {
+            get => (ListMarkerPosition?)this["list-marker-position"];
+            set => this["list-marker-position"] = value;
+        }
+
+        public IQuikTexture ListMarkerImage
+        {
+            get => (IQuikTexture)this["list-marker-image"];
+            set => this["list-marker-image"] = value;
+        }
+
+        public float? BorderWidth
+        {
+            get => (float?)this["border-width"];
+            set => this["border-width"] = value;
+        }
+
+        public QuikColor? BorderColor
+        {
+            get => (QuikColor?)this["border-color"];
+            set => this["border-color"] = value;
+        }
+
+        public QuikFont Font
+        {
+            get => (QuikFont)this["font"];
+            set => this["font"] = value;
+        }
+    }
+
+    public class Style : StyleBase
+    {
+        private readonly Dictionary<string, object> _keys = new Dictionary<string, object>();
+
+        public override object this[string styleKey]
+        {
+            get => _keys.TryGetValue(styleKey, out object value) ? value : null;
+            set
+            {
+                if (value == null)
+                    _keys.Remove(styleKey);
+                else
+                    _keys[styleKey] = value;
+            }
+        }
+    }
+
+    public class StyleStack : StyleBase
+    {
+        public readonly List<Style> _styles = new List<Style>();
+
+        public Style BaseStyle { get; }
+
+        public override object this[string key]
+        {
+            get
+            {
+                object value = null;
+
+                for (int i = _styles.Count; i != 0 && value == null; i--)
+                {
+                    value = _styles[i-1][key];
+                }
+
+                return value;
+            }
+            set => throw new InvalidOperationException();
+        }
+
+        public StyleStack(Style baseStyle)
+        {
+            BaseStyle = baseStyle;
+            Push(BaseStyle);
+        }
+
+        public void Clear()
+        {
+            _styles.Clear();
+            Push(BaseStyle);
+        }
+
+        public void Push(Style style)
+        {
+            _styles.Add(style);
+        }
+
+        public void Pop()
+        {
+            if (_styles.Count == 1)
+                return;
+
+            _styles.RemoveAt(_styles.Count - 1);
+        }
+    }
+
     /// <summary>
     /// A line stipple pattern.
     /// </summary>