private bool CheckBitmapFontComponents(EntityManager em, ref Text2DRenderer tr, ref Text2DStyleBitmapFont tb)
{
if (!em.Exists(tr.style))
{
Debug.Log("Entity Text2DRenderer.style is not set ");
return(false);
}
if (!em.Exists(tb.font))
{
Debug.Log("Entity Text2DStyleBitmapFont.font is not set ");
return(false);
}
if (!em.HasComponent <Text2DStyle>(tr.style))
{
Debug.LogFormat("Missing a Text2DStyle component on entity: {0}",
tr.style.ToString());
return(false);
}
if (!em.HasComponent <BitmapFont>(tb.font))
{
Debug.LogFormat("Missing a BitmapFont component on entity: {0}", tb.font.ToString());
return(false);
}
BitmapFont bitmapFont = em.GetComponentData <BitmapFont>(tb.font);
if (!em.HasComponent <Image2D>(bitmapFont.textureAtlas))
{
Debug.LogFormat("Missing a Image2D component for the texture atlas bitmap font on entity: {0}", bitmapFont.textureAtlas.ToString());
return(false);
}
return(true);
}
private float MeasureBitmapFontText(EntityManager em, ref Entity e, ref Text2DPrivateBitmap privBitmap, string text, float2 rectTransformSize)
{
Text2DRenderer tr = em.GetComponentData <Text2DRenderer>(e);
Text2DStyle style = em.GetComponentData <Text2DStyle>(tr.style);
Text2DStyleBitmapFont bfStyle = em.GetComponentData <Text2DStyleBitmapFont>(e);
BitmapFont bf = em.GetComponentData <BitmapFont>(bfStyle.font);
float newSize = style.size;
if (bf.size != 0.0f)
{
newSize = style.size / bf.size;
}
//Get buffer of supported glyphs
DynamicBuffer <CharacterInfoBuffer> supportedGlyphs = em.GetBuffer <CharacterInfoBuffer>(bfStyle.font);
DynamicBuffer <GlyphPrivateBuffer> glyphs = em.GetBuffer <GlyphPrivateBuffer>(e);
glyphs.Clear();
glyphs.ResizeUninitialized(text.Length);
privBitmap.fontScale = new float2(newSize, newSize);
float lineWidth = 0.0f;
for (int i = 0; i < text.Length; ++i)
{
CharacterInfo info = new CharacterInfo();
// TODO: text[i] should be in UTF16. Convert to UTF32?
if (TextService.GetCharacterInfo(supportedGlyphs, text[i], out info))
{
GlyphPrivate glyph = new GlyphPrivate();
glyph.ci = info;
// Glyph position is center of the glyph
float x = (lineWidth + info.bearingX + info.width / 2.0f);
float y = (info.height / 2.0f - (info.height - info.bearingY));
glyph.position = new float2(x, y);
glyphs[i] = new GlyphPrivateBuffer()
{
c = glyph
};
lineWidth += info.advance;
}
else
{
lineWidth += 10.0f;
string l = "Glyph: " + text[i];
l += " not supported by the font entity: ";
Debug.Log(l + e.ToString());
}
}
float width = lineWidth;
float height = bf.ascent + math.abs((float)bf.descent);
//Resize if autofit added
if (em.HasComponent <Text2DAutoFit>(e))
{
Text2DAutoFit autofit = em.GetComponentData <Text2DAutoFit>(e);
float newWidth = width * newSize;
float newHeight = height * newSize;
float maxSize = autofit.maxSize / bf.size;
float minSize = autofit.minSize / bf.size;
if (math.abs(newWidth - rectTransformSize.x) >= 0.001f || newHeight > rectTransformSize.y)
{
float ratio = 1.0f;
if (newWidth > 0.0f)
{
ratio = rectTransformSize.x / newWidth;
}
newSize = math.min(newSize * ratio, maxSize);
privBitmap.fontScale = new float2(newSize, newSize);
newHeight = height * newSize;
if (newHeight > rectTransformSize.y)
{
if (newHeight > 0.0f)
{
ratio = rectTransformSize.y / newHeight;
}
newSize = math.min(newSize * ratio, maxSize);
privBitmap.fontScale = new float2(newSize, newSize);
}
}
if (newSize < minSize)
{
//TODO: Update when float.ToString will not throws an exception anymore
string l = "Text: " + text;
l += " is not renderable, the generated font size " + ((int)newSize).ToString();
l += " is smaller than the minimum allowed " + ((int)minSize).ToString();
Debug.Log(l);
}
}
//TODO: Update when float.ToString will not throws an exception anymore
string line = "Text with bitmap font, measured with: " + ((int)width).ToString();
line += " measured height: ";
line += ((int)height).ToString();
Debug.Log(line);
privBitmap.bounds.width = width;
privBitmap.bounds.height = height;
privBitmap.bounds.x = -(rectTransformSize.x / 2.0f) + (rectTransformSize.x * (tr.pivot.x));
privBitmap.bounds.y = -(rectTransformSize.y / 2.0f) + (rectTransformSize.y * (tr.pivot.y));
return(newSize);
}