protected override void OnPopulateMesh(VertexHelper toFill)
{
if (!m_SupportEmoji)
{
base.OnPopulateMesh(toFill);
return;
}
if (font == null)
{
return;
}
m_DisableFontTextureRebuiltCallback = true;
Material mat = materialForRendering;
int emojIndex = 0;
Emoji emoj = mEmojies.Count > 0 ? mEmojies[emojIndex] : default(Emoji);
Vector2 extents = rectTransform.rect.size;
var settings = GetGenerationSettings(extents);
cachedTextGenerator.PopulateWithErrors(text, settings, gameObject);
// Apply the offset to the vertices
IList <UIVertex> verts = cachedTextGenerator.verts;
float unitsPerPixel = 1 / pixelsPerUnit;
//Last 4 verts are always a new line... (\n)
int vertCount = verts.Count - 4;
Vector2 roundingOffset = verts.Count == 0 ? Vector2.zero : new Vector2(verts[0].position.x, verts[0].position.y) * unitsPerPixel;
roundingOffset = PixelAdjustPoint(roundingOffset) - roundingOffset;
toFill.Clear();
if (roundingOffset != Vector2.zero)
{
for (int i = 0; i < vertCount; ++i)
{
int tempVertsIndex = i & 3;
m_TempVerts[tempVertsIndex] = verts[i];
m_TempVerts[tempVertsIndex].position *= unitsPerPixel;
m_TempVerts[tempVertsIndex].position.x += roundingOffset.x;
m_TempVerts[tempVertsIndex].position.y += roundingOffset.y;
if (tempVertsIndex == 3)
{
toFill.AddUIVertexQuad(m_TempVerts);
}
}
}
else
{
Vector2 duv = Vector2.one * 2;
for (int i = 0; i < vertCount; ++i)
{
int tempVertsIndex = i & 3;
m_TempVerts[tempVertsIndex] = verts[i];
m_TempVerts[tempVertsIndex].position *= unitsPerPixel;
if (tempVertsIndex == 3)
{
int es = 0;
while (emojIndex < mEmojies.Count && emoj.charIndex == (i >> 2) && mat != null)
{
es++;
string sprName;
float rot;
emoj.GetFrame(mTime, out sprName, out rot);
Sprite spr = GetSprite(sprName);
if (spr != null)
{
ModifyTempVertsUV(spr, duv);
if (Mathf.Abs(rot) > 0.1)
{
RotateTempVerts(rot);
}
if (emoj.offset.sqrMagnitude > 0.001)
{
var offset = (Vector3)emoj.offset;
if (Mathf.Abs(offset.x) < 1)
{
offset.x = Mathf.Abs(m_TempVerts[3].position.x - m_TempVerts[0].position.x) * offset.x;
}
if (Mathf.Abs(offset.y) < 1)
{
offset.y = Mathf.Abs(m_TempVerts[3].position.y - m_TempVerts[0].position.y) * offset.y;
}
MoveTempVerts(offset);
}
if (emoj.raw)
{
var col = Color.white;
col.a = color.a;
ModifyTempVertsColor(col);
}
var btn = GetEmojiBtn(emoj, emojIndex);
if (btn != null)
{
btn.rect = CalculateTempVertsBounds();
}
mat.SetTexture(mTexId, spr.texture);
toFill.AddUIVertexQuad(m_TempVerts);
}
if (++emojIndex < mEmojies.Count)
{
emoj = mEmojies[emojIndex];
}
}
if (es == 0)
{
toFill.AddUIVertexQuad(m_TempVerts);
}
}
}
}
m_DisableFontTextureRebuiltCallback = false;
}