public TexRenderer GetRenderer()
{
// For compactness:
// Scale isn't saved, but stored in TexUtility.RenderSizeFactor (and normalized)
// The actual scaling (param above) is just saved in here, not on each boxes.
// Color isn't saved, but stored in TexUtility.RenderColor or as a box of AttrColorBox (for \color).
// FontIndex & FontStyle isn't saved, but stored in TexUtility.RenderFont & TexUtility.Style
try
{
var box = CreateBox();
return(TexRenderer.Get(box as HorizontalBox ??
HorizontalBox.Get(box), AttachedMetaRenderer));
}
catch (Exception e)
{
throw e;
}
}
public TexRenderer GetRenderer(TexStyle style, float scale)
{
// For compactness:
// Scale isn't saved, but stored in TexUtility.RenderSizeFactor (and normalized)
// The actual scaling (param above) is just saved in here, not on each boxes.
// Color isn't saved, but stored in TexUtility.RenderColor or as a box of AttrColorBox (for \color).
// FontIndex & FontStyle isn't saved, but stored in TexUtility.RenderFont & TexUtility.RenderFontStyle
try
{
TexUtility.RenderSizeFactor = 1;
return(TexRenderer.Get(CreateBox(style), scale, AttachedMetaRenderer));
}
#if UNITY_EDITOR
catch (Exception e)
{
throw e;
}
#else
catch (Exception) {
}
return(null);
#endif
}
// Branched wrapping algorithm for RTL support based above.
private void HandlePerLineWrappingReversed(int i)
{
TexRenderer row = m_formulas[i], newrow;
HorizontalBox box = (HorizontalBox)row.Box;
List <Box> ch = box.children;
float x = row.PenaltyWidth, xPenalty = x, lastSpaceX = 0;
int lastSpaceIdx = -1, last = ch.Count - 1;
//Begin Per-character pooling
for (int j = ch.Count; j-- > 0;)
{
var child = ch[j];
//White line? make a mark
if (child is StrutBox && ((StrutBox)child).policy == StrutPolicy.BlankSpace)
{
lastSpaceIdx = j; //last space, index
lastSpaceX = x; //last space, x position
_spaceIdxs.Add(lastSpaceIdx); //record that space
child.width = _realBlankSpaceWidth; // All spaces must have this width (they may modified after WordWarpJusified).
}
x += ch[j].width;
//Total length not yet to break our rect limit? continue
if (x * scale <= rectArea.width)
{
if (_doJustify && (0 == j))
{
box.Recalculate();
}
continue;
}
//Now j is maximum limit character length. Now move any
//character before that to the new previous line
//Did we use word wrap? Track the last space index
if (_useWordWrap && lastSpaceIdx >= 0)
{
j = lastSpaceIdx;
x = lastSpaceX;
//Justify too? then expand our spaces width
if (_doJustify && _spaceIdxs.Count > 1)
{
float normalizedWidth = rectArea.width / scale;
float extraWidth = (normalizedWidth - x) / (_spaceIdxs.Count - 1);
for (int k = 0; k < _spaceIdxs.Count; k++)
{
ch[_spaceIdxs[k]].width += extraWidth;
}
x = normalizedWidth;
}
}
else
{
x -= ch[j].width;
}
if (j == last && (!_useWordWrap || lastSpaceIdx != j))
{
// infinite loop prevention
x += ch[j].width;
continue;
}
var doOmitSpace = (_useWordWrap && lastSpaceIdx >= 0);
m_formulas.Insert(i, newrow = TexRenderer.Get(HorizontalBox.Get(ch.GetRangePool(j + 1, last - j)),
row.metaRules, row.partOfPreviousLine)); //Add to previous line,
if (doOmitSpace)
{
j--; box.width -= ch[lastSpaceIdx].width; ch[lastSpaceIdx].Flush();
}
ch.RemoveRange(j + 1, last - j);
//Update our measurements, remember now m_formulas[i] is different with box
row.partOfPreviousLine = doOmitSpace ? 2 : 1;
box.width -= newrow.Box.width = x - xPenalty;
size.x = Mathf.Max(size.x, x);
size.y += newrow.CompleteHeight * scale;
break;
}
}
// Branched wrapping algorithm for RTL support based above.
void HandlePerLineWrappingReversed(Box box, int i)
{
float x = formulas[i].PenaltyWidth, xPenalty = x, xOri = 0, y = 0, lastSpaceX = 0;
int lastSpaceIdx = -1;
bool requestToSkip = false;
//Begin Per-character pooling
for (int j = box.children.Count; j-- > 0;)
{
var child = box.children[j];
//White line? make a mark
if (child is StrutBox && ((StrutBox)child).policy == StrutPolicy.BlankSpace)
{
lastSpaceIdx = j; //last space, index
lastSpaceX = x; //last space, x position
_spaceIdxs.Add(lastSpaceIdx); //record that space
child.width = _realBlankSpaceWidth; // All spaces must have this width (they may modified after WordWarpJusified).
}
x += box.children[j].width;
xOri = x - xPenalty;
//Total length not yet to break our rect limit? continue
if (x * scale <= rectArea.width)
{
if (_doJustify && (0 == j))
{
((HorizontalBox)box).Recalculate();
}
continue;
}
//Now j is maximum limit character length. Now move any
//character before that to the new previous line
//Did we use word wrap? Track the last space index
if (_useWordWrap && lastSpaceIdx >= 0 && lastSpaceIdx < box.children.Count - 1)
{
//Already ommited since it is exluded
j = lastSpaceIdx;
x = lastSpaceX;
xOri = lastSpaceX - xPenalty + box.children[lastSpaceIdx].width;
requestToSkip = true;
//Justify too? then expand our spaces width
if (_doJustify && _spaceIdxs.Count > 1)
{
float normalizedWidth = rectArea.width / scale;
float extraWidth = (normalizedWidth - x) / (float)(_spaceIdxs.Count - 1);
for (int k = 0; k < _spaceIdxs.Count; k++)
{
box.children[_spaceIdxs[k]].width += extraWidth;
}
x = normalizedWidth;
}
}
else if (box.children[j] is StrutBox && ((StrutBox)box.children[j]).policy == StrutPolicy.BlankSpace)
{
x -= box.children[j].width;
requestToSkip = true;
}
else
{
x -= box.children[j].width;
xOri = x - xPenalty;
}
if (j > box.children.Count - 2)
{
x += box.children[j].width;
xOri = x - xPenalty;
continue;
}
int oriPartMark = m_formulas[i].partOfPreviousLine;
m_formulas[i].partOfPreviousLine = (_useWordWrap && lastSpaceIdx >= 0) ? 2 : 1;
if (requestToSkip)
{
j--; // Skip the unneeded space char
}
m_formulas.Insert(i, TexRenderer.Get(HorizontalBox.Get(
box.children.GetRangePool(j + 1, box.children.Count - j - 1)), originalScale, m_formulas[i].metaRules)); //Add to previous line,
box.children.RemoveRange(j + 1, box.children.Count - j - 1);
//Update our measurements, remember now m_formulas[i] is different with box
if (oriPartMark > 0)
{
m_formulas[i].partOfPreviousLine = oriPartMark;
}
box.width -= xOri;
y = m_formulas[i].Box.totalHeight;
if (oriPartMark > 0)
{
y += m_formulas[i].PenaltyParagraph;
}
if (requestToSkip)
{
formulas[i].Box.shift -= m_formulas[i].Box.children[0].width;
}
formulas[i].Box.width = x - xPenalty;
size.x = Mathf.Max(size.x, x);
size.y += (spaceSize + m_formulas[i].PenaltySpacing + y) * scale;
break;
}
}
