// font and border rendering
private void UpdateText()
{
float width = _hitArea.Width;
float height = _hitArea.Height;
TextFormat format = _helperFormat;
// By working on a copy of the TextFormat, we make sure that modifications done
// within the 'fillMeshBatch' method do not cause any side effects.
//
// (We cannot use a static variable, because that might lead to problems when
// recreating textures after a context loss.)
format.CopyFrom(_format);
// Horizontal autoSize does not work for HTML text, since it supports custom alignment.
// What should we do if one line is aligned to the left, another to the right?
if (IsHorizontalAutoSize)
{
width = 100000;
}
if (IsVerticalAutoSize)
{
height = 100000;
}
_meshBatch.X = _meshBatch.Y = 0f;
_options.TextureScale = SparrowSharp.ContentScaleFactor;
_options.TextureFormat = _sDefaultTextureFormat;
_compositor.FillMeshBatch(_meshBatch, width, height, _text, format, _options);
if (_style != null)
{
_meshBatch.Style = _style;
}
if (_options.AutoSize != TextFieldAutoSize.NONE)
{
_textBounds = _meshBatch.GetBounds(_meshBatch);
if (IsHorizontalAutoSize)
{
_meshBatch.X = _textBounds.X = -_textBounds.X;
_hitArea.Width = _textBounds.Width;
_textBounds.X = 0;
}
if (IsVerticalAutoSize)
{
_meshBatch.Y = _textBounds.Y = -_textBounds.Y;
_hitArea.Height = _textBounds.Height;
_textBounds.Y = 0f;
}
}
else
{
// hit area doesn't change, and text bounds can be created on demand
_textBounds = null;
}
}
