void layoutWord(float offset, int layoutOffset,
TextBuff buff, int start, int wordCount, TextStyle style)
{
float wordSpacing =
wordCount == 1 && LayoutUtils.isWordSpace(buff.charAt(start)) ? style.wordSpacing : 0;
var font = FontManager.instance.getOrCreate(style.fontFamily, style.fontWeight, style.fontStyle).font;
font.RequestCharactersInTextureSafe(buff.subBuff(start, wordCount).getString(),
style.UnityFontSize,
style.UnityFontStyle);
float x = this._advance;
float letterSpace = style.letterSpacing;
float letterSpaceHalfLeft = letterSpace * 0.5f;
float letterSpaceHalfRight = letterSpace - letterSpaceHalfLeft;
for (int i = 0; i < wordCount; i++)
{
var ch = buff.charAt(start + i);
if (i == 0)
{
x += letterSpaceHalfLeft + wordSpacing;
this._advances[i + layoutOffset] += letterSpaceHalfLeft + wordSpacing;
}
else
{
this._advances[i - 1 + layoutOffset] += letterSpaceHalfRight;
this._advances[i + layoutOffset] += letterSpaceHalfLeft;
x += letterSpace;
}
var glyphInfo = font.getGlyphInfo(ch, style.UnityFontSize, style.UnityFontStyle);
var rect = glyphInfo.rect;
rect = rect.translate(x, 0);
if (this._bounds == null || this._bounds.isEmpty)
{
this._bounds = rect;
}
else
{
this._bounds = this._bounds.expandToInclude(rect);
}
this._positions[i + layoutOffset] = x;
float advance = glyphInfo.advance;
if (ch == '\t')
{
advance = this._tabStops.nextTab((this._advance + offset)) - this._advance;
}
x += advance;
this._advances[i + layoutOffset] += advance;
if (i + 1 == wordCount)
{
this._advances[i + layoutOffset] += letterSpaceHalfRight;
x += letterSpaceHalfRight;
}
}
this._advance = x;
}
public void doLayout(float offset, TextBuff buff, int start, int count, TextStyle style)
{
this._start = start;
this._count = count;
this._advances.reset(count);
this._positions.reset(count);
this._advance = 0;
this._bounds = default;
var font = FontManager.instance.getOrCreate(style.fontFamily, style.fontWeight, style.fontStyle).font;
font.RequestCharactersInTextureSafe(buff.text, style.UnityFontSize, style.UnityFontStyle);
int wordstart = start == buff.size
? start
: LayoutUtils.getPrevWordBreakForCache(buff, start + 1);
int wordend;
for (int iter = start; iter < start + count; iter = wordend)
{
wordend = LayoutUtils.getNextWordBreakForCache(buff, iter);
int wordCount = Mathf.Min(start + count, wordend) - iter;
this.layoutWord(offset, iter - start, buff.subBuff(wordstart, wordend - wordstart),
iter - wordstart, wordCount, style, font);
wordstart = wordend;
}
this._count = count;
}
public void finish()
{
this._wordBreaker.finish();
this._width = 0;
this._candidates.Clear();
this._widths.Clear();
this._breaks.Clear();
this._textBuf = default;
}
public void setText(string text, int textOffset, int textLength)
{
this._textBuf = new TextBuff(text, textOffset, textLength);
this._wordBreaker.setText(this._textBuf);
this._wordBreaker.next();
this._candidates.Clear();
Candidate can = new Candidate {
offset = 0, postBreak = 0, preBreak = 0, postSpaceCount = 0, preSpaceCount = 0, pre = 0
};
this._candidates.Add(can);
this._lastBreak = 0;
this._bestBreak = 0;
this._bestScore = ScoreInfty;
this._preBreak = 0;
this.mFirstTabIndex = int.MaxValue;
this._spaceCount = 0;
}
public static float measureText(float offset, TextBuff buff, int start, int count, TextStyle style,
List <float> advances, int advanceOffset, TabStops tabStops)
{
Layout layout = new Layout();
layout.setTabStops(tabStops);
layout.doLayout(offset, buff, start, count, style);
if (advances != null)
{
var layoutAdv = layout.getAdvances();
for (int i = 0; i < count; i++)
{
advances[i + advanceOffset] = layoutAdv[i];
}
}
return(layout.getAdvance());
}
public void doLayout(float offset, TextBuff buff, int start, int count, TextStyle style)
{
this._start = start;
this._count = count;
this._advances.resize(count, 0);
this._positions.resize(count, 0);
this._advance = 0;
this._bounds = null;
int wordstart = start == buff.size
? start
: LayoutUtils.getPrevWordBreakForCache(buff, start + 1);
int wordend;
for (int iter = start; iter < start + count; iter = wordend)
{
wordend = LayoutUtils.getNextWordBreakForCache(buff, iter);
int wordCount = Math.Min(start + count, wordend) - iter;
this.layoutWord(offset, iter - start, buff.subBuff(wordstart, wordend - wordstart),
iter - wordstart, wordCount, style);
wordstart = wordend;
}
this._count = count;
}
public void doLayout(float offset, TextBuff buff, int start, int count, TextStyle style)
{
this._start = start;
this._count = count;
this._advances.reset(count);
this._positions.reset(count);
this._advance = 0;
this._bounds = default;
Font font = FontManager.instance.getOrCreate(style.fontFamily, style.fontWeight, style.fontStyle).font;
char startingChar = buff.text[buff.offset + start];
if (char.IsHighSurrogate(startingChar) || EmojiUtils.isSingleCharEmoji(startingChar))
{
this.layoutEmoji(buff.text.Substring(buff.offset + start, count), style, font, start, count);
}
else
{
font.RequestCharactersInTextureSafe(buff.text, style.UnityFontSize, style.UnityFontStyle);
int wordstart = start == buff.size
? start
: LayoutUtils.getPrevWordBreakForCache(buff, start + 1);
int wordend;
for (int iter = start; iter < start + count; iter = wordend)
{
wordend = LayoutUtils.getNextWordBreakForCache(buff, iter);
int wordCount = Mathf.Min(start + count, wordend) - iter;
this.layoutWord(offset, iter - start, buff.subBuff(wordstart, wordend - wordstart),
iter - wordstart, wordCount, style, font);
wordstart = wordend;
}
}
this._count = count;
}
void layoutWord(float offset, int layoutOffset,
TextBuff buff, int start, int wordCount, TextStyle style, Font font)
{
float wordSpacing =
wordCount == 1 && LayoutUtils.isWordSpace(buff.charAt(start)) ? style.wordSpacing : 0;
float x = this._advance;
float letterSpace = style.letterSpacing;
float letterSpaceHalfLeft = letterSpace * 0.5f;
float letterSpaceHalfRight = letterSpace - letterSpaceHalfLeft;
for (int i = 0; i < wordCount; i++)
{
var ch = buff.charAt(start + i);
if (i == 0)
{
x += letterSpaceHalfLeft + wordSpacing;
this._advances[i + layoutOffset] += letterSpaceHalfLeft + wordSpacing;
}
else
{
this._advances[i - 1 + layoutOffset] += letterSpaceHalfRight;
this._advances[i + layoutOffset] += letterSpaceHalfLeft;
x += letterSpace;
}
if (font.getGlyphInfo(ch, out var glyphInfo, style.UnityFontSize, style.UnityFontStyle))
{
var minX = glyphInfo.minX + x;
var maxX = glyphInfo.maxX + x;
var minY = -glyphInfo.maxY;
var maxY = -glyphInfo.minY;
if (this._bounds.width <= 0 || this._bounds.height <= 0)
{
this._bounds = UnityEngine.Rect.MinMaxRect(
minX, minY, maxX, maxY);
}
else
{
if (minX < this._bounds.x)
{
this._bounds.x = minX;
}
if (minY < this._bounds.y)
{
this._bounds.y = minY;
}
if (maxX > this._bounds.xMax)
{
this._bounds.xMax = maxX;
}
if (maxY > this._bounds.yMax)
{
this._bounds.yMax = maxY;
}
}
}
this._positions[i + layoutOffset] = x;
float advance = glyphInfo.advance;
if (ch == '\t')
{
advance = this._tabStops.nextTab((this._advance + offset)) - this._advance;
}
x += advance;
this._advances[i + layoutOffset] += advance;
if (i + 1 == wordCount)
{
this._advances[i + layoutOffset] += letterSpaceHalfRight;
x += letterSpaceHalfRight;
}
}
this._advance = x;
}