//public override void SetVerticesDirty()
//{
// base.SetVerticesDirty();
// if( _Clone )
// return;
// if( IsActive() && showLine )
// RefreshLine();
//}
void RefreshLine()
{
if (Application.isPlaying == false)
{
return;
}
CreateLine();
if (_UnderLine == null)
{
return;
}
supportRichText = false;
Font font = this.font;
_UnderLine.color = this.color;
font.RequestCharactersInTexture(text, this.fontSize, FontStyle.Normal);
CharacterInfo characterInfo;
float width = 0f;
for (int i = 0; i < text.Length; i++)
{
font.GetCharacterInfo(text[i], out characterInfo, this.fontSize);
//width+=characterInfo.width; unity5.x提示此方法将来要废弃
width += characterInfo.advance;
}
int lineCount = Mathf.CeilToInt(width / _Width);
_UnderLine.SetBase("");
StringBuilder line = new StringBuilder();;
for (int i = 0; i < lineCount - 1; i++)
{
line.Append("_");
}
_UnderLine.SetBase(line.ToString());
}
void CreateLine()
{
if (_Clone || _UnderLine != null)
{
return;
}
//克隆Text，获得相同的属性
GameObject cloneObj = new GameObject("Underline");
cloneObj.AddComponent <RectTransform>();
_UnderLine = cloneObj.AddComponent <UITextUnderline>();
//_UnderLine = Instantiate( this ) as UITextUnderline;
//_UnderLine.name = "Underline";
_UnderLine._Clone = true;
_UnderLine.font = this.font;
_UnderLine.fontSize = this.fontSize;
_UnderLine.fontStyle = this.fontStyle;
_UnderLine.lineSpacing = this.lineSpacing;
_UnderLine.alignment = this.alignment;
cloneObj.transform.SetParent(transform);
RectTransform rt = cloneObj.GetComponent <RectTransform>();
//设置下划线坐标和位置
rt.localScale = Vector3.one;
rt.anchoredPosition3D = Vector3.zero;
rt.offsetMax = Vector2.zero;
rt.offsetMin = Vector2.zero;
rt.anchorMax = Vector2.one;
rt.anchorMin = Vector2.zero;
_UnderLine.SetBase("_");
_Width = _UnderLine.preferredWidth; //单个下划线宽度
if (!_ShowLine)
{
_UnderLine.gameObject.SetActive(false);
}
}