private float BlitString(string str, float cursorX, float cursorY, float baseScale)
{
TFontGlyph prevGlyph = null;
foreach (char c in str)
{
uint charCode = (uint)c;
if (!CustomTextConfig.Instance.Glyphs.ContainsKey(charCode))
{
continue;
}
TFontGlyph glyph = CustomTextConfig.Instance.Glyphs[charCode];
float kerning = 0f;
if (prevGlyph != null)
{
kerning = prevGlyph.GetKerning(charCode) * Size;
}
BlitQuad(cursorX, glyph, baseScale);
cursorX += glyph.metrics.xAdvance * baseScale + kerning;
prevGlyph = glyph;
}
if (cursorX > Width)
{
Width = cursorX;
}
return(cursorX);
}
private void BlitQuad(float cursorX, TFontGlyph glyph, float baseScale)
{
float atlasWidth = CustomTextConfig.Instance.TFontFace.atlasWidth;
float atlasHeight = CustomTextConfig.Instance.TFontFace.atlasHeight;
float padding = 1.25f;
Vector3 top_left;
top_left.x = (glyph.metrics.xOffset - padding) * baseScale + cursorX;
top_left.y = (glyph.metrics.yOffset + padding) * baseScale;
top_left.z = 0;
Vector3 bottom_left;
bottom_left.x = top_left.x;
bottom_left.y = top_left.y - ((glyph.metrics.height + padding * 2) * baseScale);
bottom_left.z = 0;
Vector3 top_right;
top_right.x = bottom_left.x + ((glyph.metrics.width + padding * 2) * baseScale);
top_right.y = top_left.y;
top_right.z = 0;
Vector3 bottom_right;
bottom_right.x = top_right.x;
bottom_right.y = bottom_left.y;
bottom_right.z = 0;
Vector2 uv_bottom_left;
uv_bottom_left.x = (glyph.rect.x - padding) / atlasWidth;
uv_bottom_left.y = (glyph.rect.y - padding) / atlasHeight;
Vector2 uv_top_left;
uv_top_left.x = uv_bottom_left.x;
uv_top_left.y = (glyph.rect.y + padding + glyph.rect.height) / atlasHeight;
Vector2 uv_top_right;
uv_top_right.x = (glyph.rect.x + padding + glyph.rect.width) / atlasWidth;
uv_top_right.y = uv_top_left.y;
Vector2 uv_bottom_right;
uv_bottom_right.x = uv_top_right.x;
uv_bottom_right.y = uv_bottom_left.y;
int index = m_Vertices.Count;
m_Vertices.Add(bottom_left);
m_Vertices.Add(bottom_right);
m_Vertices.Add(top_left);
m_Vertices.Add(top_right);
m_UVs.Add(uv_bottom_left);
m_UVs.Add(uv_bottom_right);
m_UVs.Add(uv_top_left);
m_UVs.Add(uv_top_right);
m_Triangles.Add(index);
m_Triangles.Add(index + 2);
m_Triangles.Add(index + 1);
m_Triangles.Add(index + 1);
m_Triangles.Add(index + 2);
m_Triangles.Add(index + 3);
}
public void Init()
{
string path = "/Users/denghaiyang/workSpace/TestWork/Assets/TextMesh Pro/Resources/Fonts & Materials/Songti SDF";
m_GlyphDictionary.Clear();
m_KerningDictionary.Clear();
var content = "";
using (var sr = File.OpenText(path))
{
content = sr.ReadToEnd();
}
var jsonStruct = JsonUtility.FromJson <TMPro_FontJsonStruct>(content);
m_TFontFace = new TFontFace(
jsonStruct.faceInfo.baseline,
jsonStruct.faceInfo.strikethroughOffset,
jsonStruct.faceInfo.underlineThickness,
jsonStruct.faceInfo.underlineOffset,
jsonStruct.faceInfo.subscriptSize,
jsonStruct.faceInfo.subscriptOffset,
jsonStruct.faceInfo.superscriptSize,
jsonStruct.faceInfo.superscriptOffset,
jsonStruct.faceInfo.descentLine,
jsonStruct.faceInfo.tabWidth,
jsonStruct.faceInfo.meanLine,
jsonStruct.faceInfo.capLine,
jsonStruct.faceInfo.ascentLine,
jsonStruct.faceInfo.lineHeight,
jsonStruct.faceInfo.scale,
jsonStruct.faceInfo.pointSize,
jsonStruct.faceInfo.styleName,
jsonStruct.faceInfo.familyName,
jsonStruct.faceInfo.strikethroughThickness,
jsonStruct.faceInfo.atlasWidth,
jsonStruct.faceInfo.atlasHeight,
jsonStruct.faceInfo.padding
);
if (jsonStruct.glyphAdjustmentTableCount > 0)
{
for (int i = 0; i < jsonStruct.glyphAdjustmentTableCount; i++)
{
var item = jsonStruct.glyphAdjustmentTable[i];
if (m_KerningDictionary.ContainsKey(item.glyphIndex))
{
continue;
}
m_KerningDictionary.Add(item.glyphIndex, new TFontGlyphAdjustmentRecord[2]
{
new TFontGlyphAdjustmentRecord()
{
glyphIndex = item.firstAdjustmentRecord.glyphIndex,
xAdvance = item.firstAdjustmentRecord.xAdvance,
},
new TFontGlyphAdjustmentRecord()
{
glyphIndex = item.secondAdjustmentRecord.glyphIndex,
xAdvance = item.secondAdjustmentRecord.xAdvance,
},
});
}
}
if (jsonStruct.characterTableCount > 0)
{
for (int i = 0; i < jsonStruct.characterTableCount; i++)
{
var item = jsonStruct.characterTable[i];
if (m_GlyphDictionary.ContainsKey(item.unicode))
{
continue;
}
TFontGlyph m_TFontGlyph = new TFontGlyph(
new Rect(item.glyphRect.x, item.glyphRect.y, item.glyphRect.width, item.glyphRect.height),
item.glyphMetrics.width, item.glyphMetrics.height, item.glyphMetrics.xOffset, item.glyphMetrics.yOffset, item.glyphMetrics.xAdvance
);
if (m_KerningDictionary.ContainsKey(item.glyphIndex))
{
var kerning = m_KerningDictionary[item.glyphIndex];
m_TFontGlyph.kerning = new Dictionary <uint, float>()
{
{ kerning[1].glyphIndex, kerning[1].xAdvance }
};
}
m_GlyphDictionary.Add(item.unicode, m_TFontGlyph);
}
}
}