public override Box CreateBox(TexStyle style)
{
var pref = TEXPreference.main;
var font = FontIndex == -2 ? TexUtility.RenderFont : FontIndex;
var FStyle = FontStyle == TexUtility.FontStyleDefault ? TexUtility.RenderFontStyle : FontStyle;
if (font >= 0 && !pref.IsCharAvailable(font, Character))
{
// It's unicode, do return Unicode
CharacterInfo info;
var c = pref.fontData[font].CreateCharacterDataOnTheFly(Character, TexUtility.SizeFactor(style), out info);
return(UnicodeBox.Get(c, font, info));
}
else
{
if (font == -1)
{
//var chSymbol = pref.charMapData[Character, -1];
//if (chSymbol == -1)
return(CharBox.Get(style, pref.GetCharMetric(Character, style), FStyle));
}
else
{
return(CharBox.Get(style, pref.GetCharMetric(font, Character, style), FStyle));
}
}
}
public override Box CreateBox(TexStyle style)
{
// Create box for base atom.
var baseBox = BaseAtom == null ? StrutBox.Empty : BaseAtom.CreateBox(TexUtility.GetCrampedStyle(style));
// Find character of best scale for accent symbol.
TexCharMetric accentChar = TEXPreference.main.GetCharMetric(AccentAtom.Name, style);
while (accentChar.ch.nextLargerExist)
{
var nextLargerChar = TEXPreference.main.GetCharMetric(accentChar.ch.nextLarger, style);
if (nextLargerChar.width > baseBox.width)
{
break;
}
accentChar = nextLargerChar;
}
var resultBox = VerticalBox.Get();
// Create and add box for accent symbol.
var accentBox = CharBox.Get(style, accentChar);
var accentWidth = (accentBox.bearing + accentBox.italic) * .5f;
accentBox.italic = accentWidth + (accentBox.width * .5f);
accentBox.bearing = accentWidth - (accentBox.width * .5f);
//accentBox. = accentBox.width + accentBox.italic - accentBox.bearing;
resultBox.Add((accentBox));
//var delta = Mathf.Min(-accentChar.depth, baseBox.height);
resultBox.Add(StrutBox.Get(0, TEXConfiguration.main.AccentMargin * TexUtility.SizeFactor(style), 0, 0));
// Centre and add box for base atom. Centre base box and accent box with respect to each other.
var boxWidthsDiff = (baseBox.width - accentBox.width) / 2f;
accentBox.shift = Mathf.Max(boxWidthsDiff, 0);
if (boxWidthsDiff < 0)
{
baseBox = HorizontalBox.Get(baseBox, accentBox.width, TexAlignment.Center);
}
resultBox.Add(baseBox);
// Adjust height and depth of result box.
var depth = baseBox.depth;
var totalHeight = resultBox.height + resultBox.depth;
resultBox.depth = depth;
resultBox.height = totalHeight - depth;
return(resultBox);
}
public override Box CreateBox()
{
return(CharBox.Get(Character));
}
public static RotatedCharBox Get(CharBox ch)
{
// this old charbox will get flushed
ch.Flush();
return(Get(ch.ch));
}
public static Box CreateBoxHorizontal(string symbol, float minWidth, TexStyle style)
{
var charInfo = TEXPreference.main.GetCharMetric(symbol, style);
var charInfo2 = TEXPreference.main.GetChar(symbol);
bool isAlreadyHorizontal = true;
while (charInfo2 != null)
{
if (charInfo2.extensionExist && !charInfo2.extensionHorizontal)
{
isAlreadyHorizontal = false;
break;
}
charInfo2 = charInfo2.nextLarger;
}
// Find first version of character that has at least minimum width.
var totalWidth = isAlreadyHorizontal ? charInfo.bearing + charInfo.italic : charInfo.totalHeight;
while (totalWidth < minWidth && charInfo.ch.nextLargerExist)
{
charInfo = TEXPreference.main.GetCharMetric(charInfo.ch.nextLarger, style);
totalWidth = isAlreadyHorizontal ? charInfo.bearing + charInfo.italic : charInfo.totalHeight;
}
if (totalWidth >= minWidth)
{
// Character of sufficient height was found.
if (isAlreadyHorizontal)
{
return(CharBox.Get(style, charInfo));
}
else
{
return(RotatedCharBox.Get(style, charInfo));
}
}
else if (charInfo.ch.extensionExist)
{
var resultBox = HorizontalBox.Get();
resultBox.ExtensionMode = true;
// Construct box from extension character.
var extension = charInfo.ch.GetExtentMetrics(style);
if (isAlreadyHorizontal)
{
if (extension[0] != null)
{
resultBox.Add(CharBox.Get(style, extension[0]));
}
if (extension[1] != null)
{
resultBox.Add(CharBox.Get(style, extension[1]));
}
if (extension[2] != null)
{
resultBox.Add(CharBox.Get(style, extension[2]));
}
}
else
{
if (extension[2] != null)
{
resultBox.Add(RotatedCharBox.Get(style, extension[2]));
}
if (extension[1] != null)
{
resultBox.Add(RotatedCharBox.Get(style, extension[1]));
}
if (extension[0] != null)
{
resultBox.Add(RotatedCharBox.Get(style, extension[0]));
}
}
// Insert repeatable part multiple times until box is high enough.
if (extension[3] != null)
{
Box repeatBox;
if (isAlreadyHorizontal)
{
repeatBox = CharBox.Get(style, extension[3]);
}
else
{
repeatBox = RotatedCharBox.Get(style, extension[3]);
}
do
{
if (extension[0] != null && extension[2] != null)
{
resultBox.Add(1, repeatBox);
if (extension[1] != null)
{
resultBox.Add(resultBox.children.Count - 1, repeatBox);
}
}
else if (extension[2] != null)
{
resultBox.Add(0, repeatBox);
}
else
{
resultBox.Add(repeatBox);
}
}while (resultBox.width < minWidth);
}
return(resultBox);
}
else
{
// No extensions available, so use tallest available version of character.
if (isAlreadyHorizontal)
{
return(CharBox.Get(style, charInfo));
}
else
{
return(RotatedCharBox.Get(style, charInfo));
}
}
}
public static Box CreateBox(string symbol, float minHeight, TexStyle style)
{
minHeight += TEXConfiguration.main.DelimiterRecursiveOffset;
var charInfo = TEXPreference.main.GetCharMetric(symbol, style);
// Find first version of character that has at least minimum height.
var totalHeight = charInfo.height + charInfo.depth;
//var alter = 0;
while (totalHeight <= minHeight && charInfo.ch.nextLargerExist)
{
//Debug.LogWarningFormat("will: {3} min: {0} cur: {1}+{2}", minHeight, charInfo.height, charInfo.depth, alter);
charInfo = TEXPreference.main.GetCharMetric(charInfo.ch.nextLarger, style);
totalHeight = charInfo.height + charInfo.depth;
//alter++;
}
if (totalHeight > minHeight)
{
// Character of sufficient height was found.
//Debug.LogFormat("owning: {2} min: {0} cur: {1}", minHeight, totalHeight, alter);
return(CharBox.Get(style, charInfo));
}
else if (charInfo.ch.extensionExist && !charInfo.ch.extensionHorizontal)
{
var resultBox = VerticalBox.Get();
resultBox.ExtensionMode = true;
// Construct box from extension character.
var extension = charInfo.ch.GetExtentMetrics(style);
if (extension[0] != null)
{
resultBox.Add(CharBox.Get(style, extension[0]));
}
if (extension[1] != null)
{
resultBox.Add(CharBox.Get(style, extension[1]));
}
if (extension[2] != null)
{
resultBox.Add(CharBox.Get(style, extension[2]));
}
// Insert repeatable part multiple times until box is high enough.
if (extension[3] != null)
{
var repeatBox = CharBox.Get(style, extension[3]);
if (repeatBox.totalHeight <= 0)
{
throw new ArgumentOutOfRangeException("PULL CHAR DEL ZERO");
}
while (resultBox.height + resultBox.depth <= minHeight)
{
if (extension[0] != null && extension[2] != null)
{
resultBox.Add(1, repeatBox);
if (extension[1] != null)
{
resultBox.Add(resultBox.children.Count - 1, repeatBox);
}
}
else if (extension[2] != null)
{
resultBox.Add(0, repeatBox);
}
else
{
resultBox.Add(repeatBox);
}
}
}
return(resultBox);
}
else
{
// No extensions available, so use tallest available version of character.
return(CharBox.Get(style, charInfo));
}
}
public override Box CreateBox(TexStyle style)
{
// Create box for base atom.
Box baseBox;
float delta;
if (BaseAtom is SymbolAtom && BaseAtom.Type == CharType.BigOperator)
{
// Find character of best scale for operator symbol.
var opChar = TEXPreference.main.GetCharMetric(((SymbolAtom)BaseAtom).Name, style);
if (style < TexStyle.Text && opChar.ch.nextLargerExist)
{
opChar = TEXPreference.main.GetCharMetric(opChar.ch.nextLarger, style);
}
var charBox = CharBox.Get(style, opChar);
charBox.shift = -(charBox.height + charBox.depth) / 2;
baseBox = HorizontalBox.Get(charBox);
delta = opChar.bearing;
}
else
{
baseBox = HorizontalBox.Get(BaseAtom == null ? StrutBox.Empty : BaseAtom.CreateBox(style));
delta = 0;
}
// Create boxes for upper and lower limits.
Box upperLimitBox, lowerLimitBox;
TexStyle superScriptStyle = MakeSuperScripts ? TexStyle.ScriptScript : TexUtility.GetSuperscriptStyle(style);
if (UpperLimitAtom is SymbolAtom)
{
upperLimitBox = DelimiterFactory.CreateBoxHorizontal(((SymbolAtom)UpperLimitAtom).Name, baseBox.width, superScriptStyle);
}
else
{
upperLimitBox = UpperLimitAtom == null ? null : UpperLimitAtom.CreateBox(superScriptStyle);
}
TexStyle subScriptStyle = MakeSuperScripts ? TexStyle.ScriptScript : TexUtility.GetSubscriptStyle(style);
if (LowerLimitAtom is SymbolAtom)
{
lowerLimitBox = DelimiterFactory.CreateBoxHorizontal(((SymbolAtom)LowerLimitAtom).Name, baseBox.width, subScriptStyle);
}
else
{
lowerLimitBox = LowerLimitAtom == null ? null : LowerLimitAtom.CreateBox(subScriptStyle);
}
// Make all component boxes equally wide.
var maxWidth = Mathf.Max(Mathf.Max(baseBox.width, upperLimitBox == null ? 0 : upperLimitBox.width),
lowerLimitBox == null ? 0 : lowerLimitBox.width);
if (baseBox != null)
{
baseBox = ChangeWidth(baseBox, maxWidth);
}
if (upperLimitBox != null)
{
upperLimitBox = ChangeWidth(upperLimitBox, maxWidth);
}
if (lowerLimitBox != null)
{
lowerLimitBox = ChangeWidth(lowerLimitBox, maxWidth);
}
var resultBox = VerticalBox.Get();
var opSpacing5 = TEXConfiguration.main.BigOpMargin * TexUtility.SizeFactor(style);
var kern = 0f;
// Create and add box for upper limit.
if (UpperLimitAtom != null)
{
resultBox.Add(StrutBox.Get(0, opSpacing5, 0, 0));
upperLimitBox.shift = delta / 2;
upperLimitBox.shift += TopOffset(BaseAtom);
resultBox.Add(upperLimitBox);
kern = Mathf.Max(TEXConfiguration.main.BigOpUpShift * TexUtility.SizeFactor(style),
TEXConfiguration.main.BigOpUpperGap * TexUtility.SizeFactor(style) - upperLimitBox.depth);
resultBox.Add(StrutBox.Get(0, kern, 0, 0));
}
// Add box for base atom.
resultBox.Add(baseBox);
// Create and add box for lower limit.
if (LowerLimitAtom != null)
{
resultBox.Add(StrutBox.Get(0, Mathf.Max(TEXConfiguration.main.BigOpLowShift * TexUtility.SizeFactor(style),
TEXConfiguration.main.BigOpLowerGap * TexUtility.SizeFactor(style) - lowerLimitBox.height), 0, 0));
lowerLimitBox.shift = -delta / 2;
lowerLimitBox.shift += BottomOffset(BaseAtom);
resultBox.Add(lowerLimitBox);
resultBox.Add(StrutBox.Get(0, opSpacing5, 0, 0));
}
// Adjust height and depth of result box.
var baseBoxHeight = baseBox.height;
var totalHeight = resultBox.height + resultBox.depth;
if (upperLimitBox != null)
{
baseBoxHeight += opSpacing5 + kern + upperLimitBox.height + upperLimitBox.depth;
}
resultBox.height = baseBoxHeight;
resultBox.depth = totalHeight - baseBoxHeight;
// TexUtility.AlignToBaseline(resultBox, 3);
return(resultBox);
}
//public TexChar(TexFont Font, int Index, char CharIndex, bool Supported, float scale)
//{
// fontIndex = Font.index;
// index = Index;
// characterIndex = CharIndex;
// supported = Supported;
// extentTopHash = -1;
// extentMiddleHash = -1;
// extentBottomHash = -1;
// extentRepeatHash = -1;
// if (supported) {
// if (Font.type == TexFontType.Font) {
// CharacterInfo c = getCharInfo(Font.Font_Asset, CharIndex);
// UpdateGlyph(Font.Font_Asset, c);
// } else {
// depth = 0;
// height = scale;
// bearing = 0;
// italic = scale;
// width = scale;
// }
// }
//}
//public void UpdateGlyph(Font font, CharacterInfo c)
//{
// font_reqGlyphSize = c.size == 0 ? font.fontSize : c.size;
// float ratio = font_reqGlyphSize;
// depth = -c.minY / ratio;
// height = c.maxY / ratio;
// bearing = -c.minX / ratio;
// italic = c.maxX / ratio;
// width = c.advance / ratio;
//}
//static CharacterInfo getCharInfo(Font font, char ch)
//{
// string s = new string(ch, 1);
// font.RequestCharactersInTexture(s);
// CharacterInfo o;
// if (font.GetCharacterInfo(ch, out o))
// return o;
// else
// return new CharacterInfo();
//}
public CharBox GetMetric()
{
return(CharBox.Get(this));
}