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);
}
protected override void OnUpdate()
{
EntityManager em = EntityManager;
EntityCommandBuffer ecb = new EntityCommandBuffer(Allocator.Temp);
//Check bitmap font components
Entities.With(groupAddBitmapFontPrivateC).ForEach((Entity e, ref Text2DRenderer tr, ref Text2DStyleBitmapFont bf) =>
{
if (CheckBitmapFontComponents(em, ref tr, ref bf))
{
BitmapFont bitmapFont = em.GetComponentData <BitmapFont>(bf.font);
Image2D image2D = em.GetComponentData <Image2D>(bitmapFont.textureAtlas);
if (image2D.status == ImageStatus.Loaded)
{
//Add private compo
ecb.AddComponent(e, new Text2DPrivateBitmap());
ecb.AddComponent(e, new Text2DPrivateCacheBitmap());
ecb.AddBuffer <GlyphPrivateBuffer>(e);
ecb.AddBuffer <TextPrivateString>(e);
}
}
});
ecb.Playback(em);
ecb.Dispose();
Entities.ForEach((Entity e, ref Text2DRenderer tr, ref Text2DPrivateBitmap textP,
ref Text2DPrivateCacheBitmap textHtmlP) =>
{
Text2DStyle textStyle = em.GetComponentData <Text2DStyle>(tr.style);
Text2DStyleBitmapFont styleBitmap = em.GetComponentData <Text2DStyleBitmapFont>(e);
BitmapFont bitmapFont = em.GetComponentData <BitmapFont>(styleBitmap.font);
Text2DPrivateCacheBitmap temp = new Text2DPrivateCacheBitmap();
temp.size = textStyle.size;
temp.color = textStyle.color;
if (em.HasComponent <Text2DAutoFit>(e))
{
Text2DAutoFit autoFit = em.GetComponentData <Text2DAutoFit>(e);
temp.minSizeAutoFit = autoFit.minSize;
temp.maxSizeAutoFit = autoFit.maxSize;
}
if (em.HasComponent <RectTransformFinalSize>(e))
{
temp.rect = em.GetComponentData <RectTransformFinalSize>(e).size;
}
var newText = em.GetBufferAsString <TextString>(e);
var privText = em.GetBufferAsString <TextPrivateString>(e);
if (!textHtmlP.Equals(temp) || newText != privText)
{
// Re-compute text size
float newSize = MeasureBitmapFontText(em, ref e, ref textP, newText, temp.rect);
textP.size = newSize;
}
//Update private text component
em.SetBufferFromString <TextPrivateString>(e, newText);
textHtmlP = temp;
});
ecb = new EntityCommandBuffer(Allocator.Temp);
Entities.With(groupRemoveBitmapFontPrivateC).ForEach((Entity e, ref Text2DPrivateBitmap tr, ref Text2DPrivateCacheBitmap nc) =>
{
ecb.RemoveComponent <Text2DPrivateBitmap>(e);
ecb.RemoveComponent <Text2DPrivateCacheBitmap>(e);
ecb.RemoveComponent <GlyphPrivateBuffer>(e);
ecb.RemoveComponent <TextPrivateString>(e);
});
ecb.Playback(em);
ecb.Dispose();
}
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);
}
