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409 lines
12 KiB
409 lines
12 KiB
using UnityEngine;
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using UnityEngine.Serialization;
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using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.Linq;
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namespace TMPro
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{
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/// <summary>
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/// Class that contains the basic information about the font.
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/// </summary>
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[Serializable]
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public class FaceInfo
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{
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public string Name;
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public float PointSize;
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public float Scale;
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public int CharacterCount;
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public float LineHeight;
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public float Baseline;
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public float Ascender;
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public float CapHeight;
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public float Descender;
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public float CenterLine;
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public float SuperscriptOffset;
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public float SubscriptOffset;
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public float SubSize;
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public float Underline;
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public float UnderlineThickness;
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public float strikethrough;
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public float strikethroughThickness;
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public float TabWidth;
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public float Padding;
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public float AtlasWidth;
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public float AtlasHeight;
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}
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// Class which contains the Glyph Info / Character definition for each character contained in the font asset.
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[Serializable]
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public class TMP_Glyph : TMP_TextElement
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{
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/// <summary>
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/// Function to create a deep copy of a GlyphInfo.
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/// </summary>
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/// <param name="source"></param>
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/// <returns></returns>
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public static TMP_Glyph Clone(TMP_Glyph source)
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{
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TMP_Glyph copy = new TMP_Glyph();
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copy.id = source.id;
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copy.x = source.x;
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copy.y = source.y;
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copy.width = source.width;
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copy.height = source.height;
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copy.xOffset = source.xOffset;
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copy.yOffset = source.yOffset;
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copy.xAdvance = source.xAdvance;
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copy.scale = source.scale;
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return copy;
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}
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}
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// Structure which holds the font creation settings
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[Serializable]
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public struct FontAssetCreationSettings
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{
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public string sourceFontFileName;
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public string sourceFontFileGUID;
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public int pointSizeSamplingMode;
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public int pointSize;
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public int padding;
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public int packingMode;
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public int atlasWidth;
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public int atlasHeight;
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public int characterSetSelectionMode;
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public string characterSequence;
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public string referencedFontAssetGUID;
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public string referencedTextAssetGUID;
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public int fontStyle;
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public float fontStyleModifier;
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public int renderMode;
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public bool includeFontFeatures;
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}
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public struct KerningPairKey
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{
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public uint ascii_Left;
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public uint ascii_Right;
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public uint key;
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public KerningPairKey(uint ascii_left, uint ascii_right)
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{
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ascii_Left = ascii_left;
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ascii_Right = ascii_right;
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key = (ascii_right << 16) + ascii_left;
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}
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}
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/// <summary>
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/// Positional adjustments of a glyph
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/// </summary>
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[Serializable]
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public struct GlyphValueRecord
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{
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public float xPlacement;
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public float yPlacement;
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public float xAdvance;
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public float yAdvance;
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public static GlyphValueRecord operator +(GlyphValueRecord a, GlyphValueRecord b)
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{
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GlyphValueRecord c;
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c.xPlacement = a.xPlacement + b.xPlacement;
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c.yPlacement = a.yPlacement + b.yPlacement;
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c.xAdvance = a.xAdvance + b.xAdvance;
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c.yAdvance = a.yAdvance + b.yAdvance;
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return c;
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}
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}
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[Serializable]
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public class KerningPair
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{
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/// <summary>
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/// The first glyph part of a kerning pair.
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/// </summary>
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public uint firstGlyph
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{
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get { return m_FirstGlyph; }
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set { m_FirstGlyph = value; }
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}
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[FormerlySerializedAs("AscII_Left")]
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[SerializeField]
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private uint m_FirstGlyph;
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/// <summary>
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/// The positional adjustment of the first glyph.
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/// </summary>
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public GlyphValueRecord firstGlyphAdjustments
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{
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get { return m_FirstGlyphAdjustments; }
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}
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[SerializeField]
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private GlyphValueRecord m_FirstGlyphAdjustments;
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/// <summary>
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/// The second glyph part of a kerning pair.
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/// </summary>
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public uint secondGlyph
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{
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get { return m_SecondGlyph; }
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set { m_SecondGlyph = value; }
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}
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[FormerlySerializedAs("AscII_Right")]
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[SerializeField]
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private uint m_SecondGlyph;
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/// <summary>
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/// The positional adjustment of the second glyph.
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/// </summary>
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public GlyphValueRecord secondGlyphAdjustments
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{
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get { return m_SecondGlyphAdjustments; }
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}
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[SerializeField]
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private GlyphValueRecord m_SecondGlyphAdjustments;
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[FormerlySerializedAs("XadvanceOffset")]
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public float xOffset;
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public KerningPair()
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{
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m_FirstGlyph = 0;
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m_FirstGlyphAdjustments = new GlyphValueRecord();
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m_SecondGlyph = 0;
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m_SecondGlyphAdjustments = new GlyphValueRecord();
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}
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public KerningPair(uint left, uint right, float offset)
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{
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firstGlyph = left;
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m_SecondGlyph = right;
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xOffset = offset;
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}
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public KerningPair(uint firstGlyph, GlyphValueRecord firstGlyphAdjustments, uint secondGlyph, GlyphValueRecord secondGlyphAdjustments)
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{
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m_FirstGlyph = firstGlyph;
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m_FirstGlyphAdjustments = firstGlyphAdjustments;
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m_SecondGlyph = secondGlyph;
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m_SecondGlyphAdjustments = secondGlyphAdjustments;
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}
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internal void ConvertLegacyKerningData()
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{
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m_FirstGlyphAdjustments.xAdvance = xOffset;
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//xOffset = 0;
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}
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}
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[Serializable]
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public class KerningTable
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{
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public List<KerningPair> kerningPairs;
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public KerningTable()
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{
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kerningPairs = new List<KerningPair>();
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}
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public void AddKerningPair()
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{
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if (kerningPairs.Count == 0)
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{
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kerningPairs.Add(new KerningPair(0, 0, 0));
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}
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else
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{
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uint left = kerningPairs.Last().firstGlyph;
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uint right = kerningPairs.Last().secondGlyph;
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float xoffset = kerningPairs.Last().xOffset;
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kerningPairs.Add(new KerningPair(left, right, xoffset));
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}
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}
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/// <summary>
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/// Add Kerning Pair
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/// </summary>
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/// <param name="first">First glyph</param>
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/// <param name="second">Second glyph</param>
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/// <param name="offset">xAdvance value</param>
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/// <returns></returns>
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public int AddKerningPair(uint first, uint second, float offset)
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{
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int index = kerningPairs.FindIndex(item => item.firstGlyph == first && item.secondGlyph == second);
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if (index == -1)
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{
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kerningPairs.Add(new KerningPair(first, second, offset));
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return 0;
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}
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// Return -1 if Kerning Pair already exists.
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return -1;
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}
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/// <summary>
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/// Add Glyph pair adjustment record
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/// </summary>
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/// <param name="firstGlyph">The first glyph</param>
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/// <param name="firstGlyphAdjustments">Adjustment record for the first glyph</param>
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/// <param name="secondGlyph">The second glyph</param>
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/// <param name="secondGlyphAdjustments">Adjustment record for the second glyph</param>
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/// <returns></returns>
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public int AddGlyphPairAdjustmentRecord(uint first, GlyphValueRecord firstAdjustments, uint second, GlyphValueRecord secondAdjustments)
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{
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int index = kerningPairs.FindIndex(item => item.firstGlyph == first && item.secondGlyph == second);
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if (index == -1)
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{
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kerningPairs.Add(new KerningPair(first, firstAdjustments, second, secondAdjustments));
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return 0;
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}
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// Return -1 if Kerning Pair already exists.
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return -1;
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}
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public void RemoveKerningPair(int left, int right)
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{
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int index = kerningPairs.FindIndex(item => item.firstGlyph == left && item.secondGlyph == right);
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if (index != -1)
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kerningPairs.RemoveAt(index);
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}
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public void RemoveKerningPair(int index)
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{
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kerningPairs.RemoveAt(index);
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}
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public void SortKerningPairs()
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{
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// Sort List of Kerning Info
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if (kerningPairs.Count > 0)
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kerningPairs = kerningPairs.OrderBy(s => s.firstGlyph).ThenBy(s => s.secondGlyph).ToList();
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}
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}
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public static class TMP_FontUtilities
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{
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private static List<int> k_searchedFontAssets;
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/// <summary>
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/// Search through the given font and its fallbacks for the specified character.
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/// </summary>
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/// <param name="font">The font asset to search for the given character.</param>
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/// <param name="character">The character to find.</param>
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/// <param name="glyph">out parameter containing the glyph for the specified character (if found).</param>
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/// <returns></returns>
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public static TMP_FontAsset SearchForGlyph(TMP_FontAsset font, int character, out TMP_Glyph glyph)
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{
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if (k_searchedFontAssets == null)
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k_searchedFontAssets = new List<int>();
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k_searchedFontAssets.Clear();
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return SearchForGlyphInternal(font, character, out glyph);
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}
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/// <summary>
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/// Search through the given list of fonts and their possible fallbacks for the specified character.
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/// </summary>
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/// <param name="fonts"></param>
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/// <param name="character"></param>
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/// <param name="glyph"></param>
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/// <returns></returns>
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public static TMP_FontAsset SearchForGlyph(List<TMP_FontAsset> fonts, int character, out TMP_Glyph glyph)
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{
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return SearchForGlyphInternal(fonts, character, out glyph);
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}
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private static TMP_FontAsset SearchForGlyphInternal (TMP_FontAsset font, int character, out TMP_Glyph glyph)
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{
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glyph = null;
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if (font == null) return null;
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if (font.characterDictionary.TryGetValue(character, out glyph))
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{
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return font;
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}
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else if (font.fallbackFontAssets != null && font.fallbackFontAssets.Count > 0)
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{
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for (int i = 0; i < font.fallbackFontAssets.Count && glyph == null; i++)
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{
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TMP_FontAsset temp = font.fallbackFontAssets[i];
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if (temp == null) continue;
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int id = temp.GetInstanceID();
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// Skip over the fallback font asset in the event it is null or if already searched.
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if (k_searchedFontAssets.Contains(id)) continue;
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// Add to list of font assets already searched.
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k_searchedFontAssets.Add(id);
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temp = SearchForGlyphInternal(temp, character, out glyph);
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if (temp != null)
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return temp;
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}
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}
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return null;
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}
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private static TMP_FontAsset SearchForGlyphInternal(List<TMP_FontAsset> fonts, int character, out TMP_Glyph glyph)
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{
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glyph = null;
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if (fonts != null && fonts.Count > 0)
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{
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for (int i = 0; i < fonts.Count; i++)
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{
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TMP_FontAsset fontAsset = SearchForGlyphInternal(fonts[i], character, out glyph);
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if (fontAsset != null)
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return fontAsset;
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}
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}
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return null;
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}
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}
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}
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