private void UpdateLayout()
{
if (_content2 == null && _content.texture == null && _content.frameCount == 0)
{
if (_autoSize)
{
_updatingLayout = true;
this.SetSize(50, 30);
_updatingLayout = false;
}
return;
}
_contentWidth = _contentSourceWidth;
_contentHeight = _contentSourceHeight;
if (_autoSize)
{
_updatingLayout = true;
if (_contentWidth == 0)
{
_contentWidth = 50;
}
if (_contentHeight == 0)
{
_contentHeight = 30;
}
this.SetSize(_contentWidth, _contentHeight);
_updatingLayout = false;
if (_width == _contentWidth && _height == _contentHeight)
{
if (_content2 != null)
{
_content2.SetXY(0, 0);
_content2.SetScale(1, 1);
}
else
{
_content.SetXY(0, 0);
_content.SetScale(1, 1);
if (_content.texture != null)
{
_content.SetNativeSize();
}
}
return;
}
//如果不相等，可能是由于大小限制造成的，要后续处理
}
float sx = 1, sy = 1;
if (_fill != FillType.None)
{
sx = this.width / _contentSourceWidth;
sy = this.height / _contentSourceHeight;
if (sx != 1 || sy != 1)
{
if (_fill == FillType.ScaleMatchHeight)
{
sx = sy;
}
else if (_fill == FillType.ScaleMatchWidth)
{
sy = sx;
}
else if (_fill == FillType.Scale)
{
if (sx > sy)
{
sx = sy;
}
else
{
sy = sx;
}
}
else if (_fill == FillType.ScaleNoBorder)
{
if (sx > sy)
{
sy = sx;
}
else
{
sx = sy;
}
}
if (_shrinkOnly)
{
if (sx > 1)
{
sx = 1;
}
if (sy > 1)
{
sy = 1;
}
}
_contentWidth = Mathf.FloorToInt(_contentSourceWidth * sx);
_contentHeight = Mathf.FloorToInt(_contentSourceHeight * sy);
}
}
if (_content2 != null)
{
_content2.SetScale(sx, sy);
}
else if (_content.texture != null)
{
_content.SetScale(1, 1);
_content.size = new Vector2(_contentWidth, _contentHeight);
}
else
{
_content.SetScale(sx, sy);
}
float nx;
float ny;
if (_align == AlignType.Center)
{
nx = Mathf.FloorToInt((this.width - _contentWidth) / 2);
}
else if (_align == AlignType.Right)
{
nx = Mathf.FloorToInt(this.width - _contentWidth);
}
else
{
nx = 0;
}
if (_verticalAlign == VertAlignType.Middle)
{
ny = Mathf.FloorToInt((this.height - _contentHeight) / 2);
}
else if (_verticalAlign == VertAlignType.Bottom)
{
ny = Mathf.FloorToInt(this.height - _contentHeight);
}
else
{
ny = 0;
}
if (_content2 != null)
{
_content2.SetXY(nx, ny);
}
else
{
_content.SetXY(nx, ny);
}
}
