public GwenRenderer()
{
zCounter = new ZCounter();
_guiBuffer = new GUIGeometryBuffer(zCounter);
}
internal static void DrawText(GUIGeometryBuffer geometryBuffer, Flood.GUI.Font font, Vector2 position, String text, Color color)
{
var ttfont = font.EngineFont.Resolve();
for (var i = 0; i < text.Length; i++)
{
char c = text[i];
Glyph glyph;
var foundGlyph = ttfont.GetGlyphInfo(c, font.Size, out glyph);
if (!foundGlyph)
{
Log.Warn("Glyph not found for character " + c);
continue;
}
bool drawSubtexture = true;
SubTexture subTexture;
if (!glyphCache.TryGetGlyph(font, c, out subTexture))
{
var imageHandle = ttfont.CreateGlyphImage(c, font.Size);
if (imageHandle.Id == ResourceHandle <Resource> .Invalid)
{
drawSubtexture = false;
}
else
{
var subTextureFound = textureAtlas.GetImageSubTexture(imageHandle, out subTexture);
if (!subTextureFound)
{
textureAtlas.AddImage(imageHandle);
subTextureFound = textureAtlas.GetImageSubTexture(imageHandle, out subTexture);
if (subTextureFound)
{
glyphCache.AddGlyph(font, c, subTexture);
}
else
{
Log.Warn("subTexture not Found\n");
continue;
}
}
}
}
if (drawSubtexture)
{
var renderRect = new RectangleF(
position.X + glyph.XOffset,
position.Y + glyph.BaseLineOffset,
glyph.Width,
glyph.Height);
geometryBuffer.AddRectangle(renderRect, subTexture.LeftTopUV, subTexture.RightTopUV, subTexture.RightBottomUV, subTexture.LeftBottomUV, textMaterial, color);
}
if (i < text.Length - 1)
{
var kern = ttfont.GetKerning(text[i], text[i + 1], font.Size);
position.X += glyph.Advance + kern.X;
position.Y += kern.Y;
}
}
}
