public DrawingContext(Component parent)
{
vertex = new FillHelper();
parser = new TexFormulaParser();
monoContainer = parent;
hasInit = true;
}
public bool Parse(string input)
{
if (!hasInit)
{
vertex = new FillHelper();
parser = new TexFormulaParser();
}
try
{
parsingComplete = false;
string[] strings = input.Split(newLineChar, StringSplitOptions.RemoveEmptyEntries);
if (parsed.Count > 0)
{
for (int i = 0; i < parsed.Count; i++)
{
parsed[i].Flush();
}
}
parsed.Clear();
for (int i = 0; i < strings.Length; i++)
{
parsed.Add(parser.Parse(strings[i]));
}
parsingComplete = true;
}
catch
{
return(false);
}
return(true);
}
protected void ApplyShadowZeroAlloc(FillHelper verts, Color32 color, int start, int end, float z, bool justReplace)
{
UIVertex uIVertex = new UIVertex();
for (int i = start; i < end; i++)
{
verts.PopulateUIVertex(ref uIVertex, i);
Vector3 position = uIVertex.position;
position.z = z;
uIVertex.position = position;
uIVertex.color = Color.Lerp(uIVertex.color, color, m_BodyAlpha);
if (justReplace)
{
verts.SetUIVertex(uIVertex, i);
}
else
{
verts.AddVert(uIVertex);
if (i % 4 == 0)
{
var t = verts.currentVertCount - 1;
verts.AddTriangle(t + 0, t + 1, t + 3);
verts.AddTriangle(t + 3, t + 1, t + 2);
}
}
}
}
private void FixTMP(FillHelper verts)
{
var scale = context.monoContainer.transform.lossyScale.y * factor;
for (int i = 0; i < verts.vertexcount; i++)
{
verts.m_Uv1S[i] = new Vector2(verts.m_Uv1S[i].x, scale);
}
}
public bool Parse(string input, out string errResult, int renderFont = -1)
{
#if TEXDRAW_PROFILE
Profiler.BeginSample("Parsing");
#endif
if (!hasInit)
{
vertex = new FillHelper();
parser = new TexFormulaParser();
}
try
{
TexUtility.RenderFont = -2;
TexUtility.RawRenderFont = renderFont;
parsingComplete = false;
string[] strings = input.Split(newLineChar, StringSplitOptions.None);
if (parsed.Count > 0)
{
for (int i = 0; i < parsed.Count; i++)
{
parsed[i].Flush();
}
}
parsed.Clear();
for (int i = 0; i < strings.Length; i++)
{
parsed.Add(parser.Parse(strings[i]));
}
parsingComplete = true;
}
catch (Exception ex)
{
errResult = ex.Message;
#if TEXDRAW_PROFILE
Profiler.EndSample();
#endif
// throw ex;
return(false);
}
errResult = String.Empty;
#if TEXDRAW_PROFILE
Profiler.EndSample();
#endif
return(true);
}
private void RenderUV3Line(FillHelper verts, Rect uv, int idx)
{
// After render... uhh it's done... except if there's autoFill per line in there... which need to be done right now ...
switch (autoFill)
{
case Filling.PerLine:
for (int j = idx; j < verts.vertexcount; j++)
{
verts.SetUV2(InverseLerp(uv, verts.m_Positions[j]), j);
}
break;
/*case 5:
* //Toughest filling method: Per word - Not yet available
* var boxes = box.Box.Children;
* r = new Rect(offset, box.RenderSize);
* for (int j = lastVerts; j < verts.currentVertCount; j++) {
* verts.m_Uv2S[j] = InverseLerp(r, verts.m_Positions[j]);
* }
* break;*/
}
}
public void Render()
{
if (hasRect && (rectArea.size.x <= 0 || rectArea.size.y <= 0))
{
return;
}
// At first, calculate starting offset
CalculateRenderedArea(size, alignment, rectArea);
// We'll start from top (line-per-line). This means offset will subtracted decrementally..
float scaleFactor = scale * factor, paragraph = 0, x, y;
offset.y += size.y;
FillHelper verts = context.vertex;
for (int i = 0; i < formulas.Count; i++)
{
var box = formulas[i];
int lastVerts = verts.vertexcount;
float alignX = alignment.x, sizeX = size.x;
if (box.usingMetaRules)
{
var r = rectArea;
var meta = box.metaRules;
sizeX = box.Width * scaleFactor;
alignX = meta.GetAlignment(alignment.x);
r.width -= box.PenaltyWidth * scaleFactor;
// We only need to adjust horizontal offset
offset.x = CalculateXMetric(sizeX, alignX, r.width
, r.x + r.width / 2, meta.left, meta.right, box.partOfPreviousLine == 0 ? meta.leading : 0);
}
if (box.Box.totalHeight == 0)
{
continue; // empty meta block
}
// Get ready to render
if (box.partOfPreviousLine == 0)
{
offset.y -= paragraph * scaleFactor;
}
x = offset.x + alignX * (sizeX - scaleFactor * box.Width);
y = offset.y -= box.Height * scaleFactor;
box.Render(context, x, y, scaleFactor);
offset.y -= (box.Depth + box.PenaltySpacing) * scaleFactor;
if (box.partOfPreviousLine == 0)
{
paragraph = box.PenaltyParagraph;
}
if (autoFill == Filling.PerLine)
{
RenderUV3Line(verts, new Rect(new Vector2(x, offset.y),
new Vector2(box.Width, box.Depth + box.Height) * scaleFactor), lastVerts);
}
}
if (autoFill > 0)
{
RenderUV3(verts);
}
#if TEXDRAW_TMP
FixTMP(verts);
#endif
}
private void RenderUV3(FillHelper verts)
{
var count = verts.vertexcount;
switch (autoFill)
{
case Filling.Rectangle:
Rect r;
if (hasRect)
{
r = rectArea;
}
else
{
r = new Rect(-VecScale(size, alignment), size);
}
for (int i = 0; i < count; i++)
{
verts.SetUV2(InverseLerp(r, verts.m_Positions[i]), i);
}
break;
case Filling.WholeText:
if (hasRect)
{
r = new Rect(-(
VecScale(size, (alignment)) +
VecScale(rectArea.size, VecNormal(alignment)) +
-(rectArea.center)), size);
}
else
{
r = new Rect(-VecScale(size, alignment), size);
}
for (int i = 0; i < count; i++)
{
verts.SetUV2(InverseLerp(r, verts.m_Positions[i]), i);
}
break;
case Filling.WholeTextSquared:
if (hasRect)
{
r = new Rect(-(
VecScale(size, (alignment)) +
VecScale(rectArea.size, VecNormal(alignment)) +
-(rectArea.center)), size);
}
else
{
r = new Rect(-VecScale(size, alignment), size);
}
var max = Mathf.Max(r.width, r.height);
var center = r.center;
r.size = Vector2.one * max;
r.center = center;
for (int i = 0; i < count; i++)
{
verts.SetUV2(InverseLerp(r, verts.m_Positions[i]), i);
}
break;
case Filling.PerCharacter:
for (int i = 0; i < count; i++)
{
int l = i % 4;
verts.SetUV2(new Vector2(l == 0 | l == 3 ? 0 : 1, l < 2 ? 0 : 1), i);
}
break;
case Filling.PerCharacterSquared:
for (int i = 0; i < count; i += 4)
{
Vector2 sz = verts.m_Positions[i + 2] - verts.m_Positions[i];
if (sz.x <= 0 || sz.y <= 0)
{
for (int l = 0; l < 4; l++)
{
verts.SetUV2(new Vector2(l == 0 | l == 3 ? 0 : 1, l < 2 ? 0 : 1), i);
}
continue;
}
float xMin, xMax, yMin, yMax;
if (sz.x > sz.y)
{
var h = sz.y / sz.x;
xMin = 0;
xMax = 1;
yMin = (1 - h) / 2;
yMax = 1 - yMin;
}
else
{
var v = sz.x / sz.y;
yMin = 0;
yMax = 1;
xMin = (1 - v) / 2;
xMax = 1 - xMin;
}
for (int l = 0; l < 4; l++)
{
verts.SetUV2(new Vector2(l == 0 | l == 3 ? xMin : xMax, l < 2 ? yMin : yMax), i + l);
}
}
break;
case Filling.LocalContinous:
var ratio = 1 / (factor * scale);
for (int i = 0; i < count; i++)
{
verts.SetUV2(verts.m_Positions[i] * ratio, i);
}
break;
case Filling.WorldContinous:
ratio = 1 / (factor * scale);
var transform = context.monoContainer.transform;
for (int i = 0; i < count; i++)
{
verts.SetUV2(transform.TransformPoint(verts.m_Positions[i]) * ratio, i);
}
break;
}
}
public void Render()
{
if (hasRect && autoFit > 0 && (rectArea.size.x <= 0 || rectArea.size.y <= 0))
{
return;
}
// At first, calculate starting offset
CalculateRenderedArea(size, alignment, rectArea);
var lastIsCustomAlign = false;
//Layout bug fix.
float shift;
float lastOffsetX = offset.x;
float postYOffset = 0f, postYParagraph = 0f; //
// We'll start from top (line-per-line). This means offset will subtracted decrementally..
offset.y += size.y;
TexRenderer box;
var scaleFactor = scale * factor;
FillHelper verts = context.vertex;
for (int i = 0; i < formulas.Count; i++)
{
int lastVerts = verts.currentVertCount;
box = formulas[i];
// Recalculate offsets
var alignX = alignment.x;
var sizeX = size.x;
offset.y -= (box.Box.totalHeight +
(i > 0 && formulas[i - 1].Box.totalHeight > 0 ? spaceSize + postYOffset : 0) +
(box.partOfPreviousLine == 0 ? postYParagraph : 0)) * scaleFactor;
box.Scale *= factor;
shift = (box.Box.height - box.Box.depth) * box.Scale;
// Recalculate again if something defined in box's meta
if (box.usingMetaRules)
{
float lastY = offset.y;
var meta = box.metaRules;
alignX = meta.GetAlignment(alignment.x);
sizeX = (box.Box.width) * scaleFactor;
var rectModify = rectArea;
rectModify.width -= (meta.right + meta.left + box.partOfPreviousLine > 0 ? 0 : meta.leading) * scaleFactor;
// We only need to adjust horizontal offset
CalculateRenderedArea(new Vector2(sizeX, 0), new Vector2(alignX, alignment.y), rectModify);
offset.x += ((1 - alignX) * meta.left
- (alignX) * meta.right
+ (box.partOfPreviousLine > 0 ? 0 : (-(alignX * 2 - 1)) * meta.leading)
) * scaleFactor;
sizeX -= rectArea.xMax - rectModify.xMax;
offset.y = lastY; // Don't want thing messed.
postYOffset = (meta.spacing); // Additional spacing
postYParagraph = box.Box.totalHeight > 0 ? meta.paragraph : 0;
lastIsCustomAlign = true;
}
else if (lastIsCustomAlign)
{
// This is just for restoring things from beginning (if necessary)
postYOffset = 0;
postYParagraph = 0;
offset.x = lastOffsetX;
lastIsCustomAlign = false;
}
// Get ready to render
float x = offset.x + /*box.Box.shift * box.Scale +*/ alignX * (sizeX - box.Scale * box.Box.width);
float y = offset.y - shift;
box.Render(context, x, y);
// After render... uhh it's done... except if there's autoFill per line in there... which need to be done right now ...
switch (autoFill)
{
case Filling.PerLine:
Rect r = new Rect(new Vector2(x, offset.y), box.RenderSize);
for (int j = lastVerts; j < verts.currentVertCount; j++)
{
verts.SetUV2(inverseLerp(r, verts.m_Positions[j]), j);
}
break;
/*case 5:
* //Toughest filling method: Per word - Not yet available
* var boxes = box.Box.Children;
* r = new Rect(offset, box.RenderSize);
* for (int j = lastVerts; j < verts.currentVertCount; j++) {
* verts.m_Uv2S[j] = inverseLerp(r, verts.m_Positions[j]);
* }
* break;*/
}
}
if (autoFill > 0)
{
RenderUV3(verts);
}
}
