139 lines
4.5 KiB
C#
139 lines
4.5 KiB
C#
using System.Collections.Generic;
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using UnityEngine;
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using UnityEngine.UI;
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namespace Coffee.NanoMonitor{
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public class FixedFont
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{
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private readonly UIVertex[] _tmpVerts = new UIVertex[4];
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private static readonly Dictionary<Font, FixedFont> _fonts = new Dictionary<Font, FixedFont>();
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private static readonly TextGenerator _textGenerator = new TextGenerator(100);
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private static TextGenerationSettings _settings = new TextGenerationSettings
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{
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scaleFactor = 1,
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horizontalOverflow = HorizontalWrapMode.Overflow,
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verticalOverflow = VerticalWrapMode.Overflow,
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alignByGeometry = true,
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textAnchor = TextAnchor.MiddleCenter,
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color = Color.white
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};
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private int _resolution = 0;
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private readonly Font _font;
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private UIVertex[] _verts;
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private UICharInfo[] _charInfos;
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private FixedFont(Font font)
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{
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_font = font;
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}
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public int fontSize => _font.dynamic ? 32 : _font.fontSize;
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public static FixedFont GetOrCreate(Font font)
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{
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if (font == null) return null;
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if (_fonts.TryGetValue(font, out var data)) return data;
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data = new FixedFont(font);
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_fonts.Add(font, data);
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return data;
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}
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public void Invalidate()
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{
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_resolution = 0;
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}
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public void UpdateFont()
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{
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if (!_font) return;
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var mat = _font.material;
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if (!mat) return;
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var tex = mat.mainTexture;
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if (!tex) return;
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var currentResolution = tex.width * tex.height;
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if (_resolution == currentResolution) return;
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_resolution = currentResolution;
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_settings.font = _font;
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_textGenerator.Invalidate();
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_textGenerator.Populate("_!\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~", _settings);
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_verts = _textGenerator.GetVerticesArray();
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_charInfos = _textGenerator.GetCharactersArray();
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float offsetX = 0;
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for (var i = 0; i < _verts.Length; i++)
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{
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if ((i & 3) == 0)
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offsetX = _verts[i].position.x;
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var v = _verts[i];
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v.position -= new Vector3(offsetX, 0);
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_verts[i] = v;
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}
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}
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public float Layout(char c, float offset, float scale)
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{
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if (_charInfos == null) return offset;
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if (c < 0x20 || 0x7e < c) return offset;
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var ci = c - 0x20;
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return offset + _charInfos[ci].charWidth * scale;
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}
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public float Append(VertexHelper toFill, char c, float offset, float scale, Color color)
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{
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if (_verts == null || _charInfos == null) return offset;
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if (c < 0x20 || 0x7e < c) return offset;
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var ci = c - 0x20;
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for (var i = 0; i < 4; i++)
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{
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_tmpVerts[i] = _verts[ci * 4 + i];
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_tmpVerts[i].position = _tmpVerts[i].position * scale + new Vector3(offset, 0);
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_tmpVerts[i].color = ci == 0 ? Color.clear : color;
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}
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toFill.AddUIVertexQuad(_tmpVerts);
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return offset + _charInfos[ci].charWidth * scale;
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}
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public void Fill(VertexHelper toFill, Color color, RectTransform tr)
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{
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if (_verts == null || _charInfos == null) return;
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const int ci = '*' - 0x20;
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var uv = (_verts[ci * 4].uv0 + _verts[ci * 4 + 2].uv0) / 2;
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var rect = tr.rect;
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var size = rect.size / 2;
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var offset = (new Vector2(0.5f, 0.5f) - tr.pivot) * rect.size;
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for (var i = 0; i < 4; i++)
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{
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_tmpVerts[i] = new UIVertex();
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_tmpVerts[i].uv0 = uv;
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_tmpVerts[i].color = color;
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if (i == 0)
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_tmpVerts[i].position = new Vector2(-size.x, -size.y) + offset;
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else if (i == 1)
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_tmpVerts[i].position = new Vector2(-size.x, size.y) + offset;
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else if (i == 2)
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_tmpVerts[i].position = new Vector2(size.x, size.y) + offset;
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else
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_tmpVerts[i].position = new Vector2(size.x, -size.y) + offset;
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}
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toFill.AddUIVertexQuad(_tmpVerts);
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}
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}
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}
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