private void AddQuad(VertexHelper vertexHelper, Vector2 posMin, Vector2 posMax, Color32 color, Vector2 uv0Min, Vector2 uv0Max, Vector2 uv1Min, Vector2 uv1Max, float elementWidthScale)
{
int horizontalElements = CurvedUIHelper.GetNumberOfElementsForWidth(Mathf.Abs(posMin.x - posMax.x));
int verticalElements = CurvedUIHelper.GetNumberOfElementsForWidth(Mathf.Abs(posMin.y - posMax.y));
int currentVertCount = vertexHelper.currentVertCount;
for (int j = 0; j < verticalElements; j++)
{
float currrentVertProgress = j / (float)verticalElements;
float nextVertProgress = (j + 1) / (float)verticalElements;
float currentPosY = Mathf.LerpUnclamped(posMin.y, posMax.y, currrentVertProgress);
float currentUvY = Mathf.LerpUnclamped(uv0Min.y, uv0Max.y, currrentVertProgress);
float nextPosY = Mathf.LerpUnclamped(posMin.y, posMax.y, nextVertProgress);
float nextUvY = Mathf.LerpUnclamped(uv0Min.y, uv0Max.y, nextVertProgress);
for (int i = 0; i < horizontalElements + 1; i++)
{
float horizProgress = i / (float)horizontalElements;
float posX = Mathf.LerpUnclamped(posMin.x, posMax.x, horizProgress);
float uvX = Mathf.LerpUnclamped(uv0Min.x, uv0Max.x, horizProgress);
AddVert(vertexHelper, posX, currentPosY, uvX, currentUvY);
AddVert(vertexHelper, posX, nextPosY, uvX, nextUvY);
}
}
for (int j = 0; j < verticalElements; j++)
{
for (int k = 0; k < horizontalElements; k++)
{
int num4 = (j * (horizontalElements + 1) * 2) + (k * 2) + currentVertCount;
vertexHelper.AddTriangle(num4, 1 + num4, 2 + num4);
vertexHelper.AddTriangle(2 + num4, 3 + num4, 1 + num4);
}
}
}
protected override void DrawUnderlineMesh(Vector3 start, Vector3 end, ref int index, float startScale, float endScale, float maxScale, float sdfScale, Color32 underlineColor)
{
#if TMP_MANUALLY_GET_UNDERLINE
GetUnderlineSpecialCharacter(m_fontAsset);
var m_cached_Underline_Character = m_Underline.character;
#endif
if (m_cached_Underline_Character == null)
{
if (!TMP_Settings.warningsDisabled)
{
Debug.LogWarning("Unable to add underline since the Font Asset doesn't contain the underline character.", this);
}
return;
}
int horizontalElements = CurvedUIHelper.GetNumberOfElementsForWidth(Mathf.Abs(start.x - end.x));
int verticesCount = index + (horizontalElements * 4);
// Check to make sure our current mesh buffer allocations can hold these new Quads.
if (verticesCount > m_textInfo.meshInfo[0].vertices.Length)
{
// Resize Mesh Buffers
m_textInfo.meshInfo[0].ResizeMeshInfo(verticesCount / 4);
}
// Adjust the position of the underline based on the lowest character. This matters for subscript character.
start.y = Mathf.Min(start.y, end.y);
end.y = Mathf.Min(start.y, end.y);
float startPadding = m_padding * startScale / maxScale;
float endPadding = m_padding * endScale / maxScale;
float underlineThickness = m_fontAsset.faceInfo.underlineThickness;
// Alpha is the lower of the vertex color or tag color alpha used.
underlineColor.a = m_fontColor32.a < underlineColor.a ? (byte)(m_fontColor32.a) : (byte)(underlineColor.a);
Vector3[] vertices = m_textInfo.meshInfo[0].vertices;
Vector2[] uvs0 = m_textInfo.meshInfo[0].uvs0;
Vector2[] uvs2 = m_textInfo.meshInfo[0].uvs2;
Color32[] colors32 = m_textInfo.meshInfo[0].colors32;
Vector2 uvBL = new Vector2((m_cached_Underline_Character.glyph.glyphRect.x - startPadding) / m_fontAsset.atlasWidth, (m_cached_Underline_Character.glyph.glyphRect.y - m_padding) / m_fontAsset.atlasHeight); // bottom left
Vector2 uvTL = new Vector2(uvBL.x, (m_cached_Underline_Character.glyph.glyphRect.y + m_cached_Underline_Character.glyph.glyphRect.height + m_padding) / m_fontAsset.atlasHeight); // top left
Vector2 uvBR = new Vector2((m_cached_Underline_Character.glyph.glyphRect.x + endPadding + m_cached_Underline_Character.glyph.glyphRect.width) / m_fontAsset.atlasWidth, uvTL.y); // End Part - Bottom Right
Vector2 uvTR = new Vector2(uvBR.x, uvBL.y); // End Part - Top Right
var xScale = Mathf.Abs(sdfScale);
var width = end.x - start.x;
for (int i = 0; i < horizontalElements; i++)
{
var face = i * 4;
var faceWidth = width / horizontalElements * i;
var nextFaceWidth = width / horizontalElements * (i + 1);
var bl = index + face + 0;
var tl = index + face + 1;
var tr = index + face + 2;
var br = index + face + 3;
if (i == 0)
{
vertices[bl] = start + new Vector3(0, 0 - (underlineThickness + m_padding) * maxScale, 0);
vertices[tl] = start + new Vector3(0, m_padding * maxScale, 0);
vertices[tr] = vertices[tl] + new Vector3(nextFaceWidth, 0, 0);
vertices[br] = vertices[bl] + new Vector3(nextFaceWidth, 0, 0);
uvs0[bl] = uvBL;
uvs0[tl] = uvTL;
uvs0[tr] = Vector2.Lerp(uvTL, uvTR, nextFaceWidth / width);
uvs0[br] = Vector2.Lerp(uvBL, uvBR, nextFaceWidth / width);
}
else if (i == horizontalElements - 1)
{
vertices[bl] = start + new Vector3(faceWidth, -(underlineThickness + m_padding) * maxScale, 0);
vertices[tl] = start + new Vector3(faceWidth, m_padding * maxScale, 0);
vertices[tr] = end + new Vector3(0, m_padding * maxScale, 0);
vertices[br] = end + new Vector3(0, -(underlineThickness + m_padding) * maxScale, 0);
uvs0[bl] = Vector2.Lerp(uvBL, uvBR, faceWidth / width);
uvs0[tl] = Vector2.Lerp(uvTL, uvTR, faceWidth / width);
uvs0[tr] = uvTR;
uvs0[br] = uvBR;
}
else
{
vertices[bl] = start + new Vector3(faceWidth, 0 - (underlineThickness + m_padding) * maxScale, 0);
vertices[tl] = start + new Vector3(faceWidth, m_padding * maxScale, 0);
vertices[tr] = vertices[tl] + new Vector3(nextFaceWidth - faceWidth, 0, 0);
vertices[br] = vertices[bl] + new Vector3(nextFaceWidth - faceWidth, 0, 0);
uvs0[bl] = Vector2.Lerp(uvBL, uvBR, faceWidth / width);
uvs0[tl] = Vector2.Lerp(uvTL, uvTR, faceWidth / width);
uvs0[tr] = Vector2.Lerp(uvTL, uvTR, nextFaceWidth / width);
uvs0[br] = Vector2.Lerp(uvBL, uvBR, nextFaceWidth / width);
}
uvs2[bl] = PackUV(faceWidth / width, 0, xScale);
uvs2[tl] = PackUV(faceWidth / width, 1, xScale);
uvs2[tr] = PackUV(nextFaceWidth / width, 1, xScale);
uvs2[br] = PackUV(nextFaceWidth / width, 0, xScale);
colors32[bl] = underlineColor;
colors32[tl] = underlineColor;
colors32[tr] = underlineColor;
colors32[br] = underlineColor;
}
index = verticesCount;
}
