/// <summary>Enable or disable kerning.</summary>
/// <remarks>
/// Enable or disable kerning.
/// Some fonts may specify kern pairs, i.e. pair of glyphs, between which the amount of horizontal space is adjusted.
/// This adjustment is typically negative, e.g. in "AV" pair the glyphs will typically be moved closer to each other.
/// </remarks>
/// <param name="fontKerning">an enum value as a boolean wrapper specifying whether or not to apply kerning</param>
/// <returns>this Element.</returns>
public virtual T SetFontKerning(FontKerning fontKerning)
{
SetProperty(Property.FONT_KERNING, fontKerning);
return((T)(Object)this);
}
public static FontData LoadFontFromXmlFile(TextAsset fontLayout)
{
FontData font = new FontData();
XmlDocument document = new XmlDocument();
document.LoadXml(fontLayout.text);
XmlNode root = document.DocumentElement;
// load the basic attributes
XmlNode secton = root.SelectSingleNode("info");
font.Info.Face = ParseString(secton, "face");
font.Info.Size = ParseInt(secton, "size");
font.Info.Bold = ParseBool(secton, "bold");
font.Info.Italic = ParseBool(secton, "italic");
font.Info.Unicode = ParseBool(secton, "unicode");
font.Info.StretchHeight = ParseInt(secton, "stretchH");
font.Info.Charset = ParseString(secton, "charset");
font.Info.Smooth = ParseBool(secton, "smooth");
font.Info.SuperSampling = ParseInt(secton, "aa");
font.Info.Padding = ParseRect(secton, "padding");
font.Info.Spacing = ParseVector2(secton, "spacing");
font.Info.Outline = ParseInt(secton, "outline");
// common attributes
secton = root.SelectSingleNode("common");
font.Common.LineHeight = ParseInt(secton, "lineHeight");
font.Common.Base = ParseInt(secton, "base");
font.Common.ScaleW = ParseInt(secton, "scaleW");
font.Common.ScaleH = ParseInt(secton, "scaleH");
font.Common.Pages = ParseInt(secton, "pages");
font.Common.Packed = ParseBool(secton, "packed");
font.Common.AlphaChannel = ParseInt(secton, "alphaChnl");
font.Common.RedChannel = ParseInt(secton, "redChnl");
font.Common.GreenChannel = ParseInt(secton, "greenChnl");
font.Common.BlueChannel = ParseInt(secton, "blueChnl");
// load texture information
font.Pages.Clear();
foreach (XmlNode node in root.SelectNodes("pages/page"))
{
FontPage page = new FontPage();
page.Id = ParseInt(node, "id");
page.File = ParseString(node, "file");
font.Pages.Add(page);
}
// load character information
font.Chars.Clear();
foreach (XmlNode node in root.SelectNodes("chars/char"))
{
FontChar ch = new FontChar();
ch.Id = ParseInt(node, "id");
ch.X = ParseInt(node, "x");
ch.Y = ParseInt(node, "y");
ch.Width = ParseInt(node, "width");
ch.Height = ParseInt(node, "height");
ch.XOffset = ParseInt(node, "xoffset");
ch.YOffset = ParseInt(node, "yoffset");
ch.XAdvance = ParseInt(node, "xadvance");
ch.Page = ParseInt(node, "page");
ch.Channel = ParseInt(node, "chnl");
ch.Description = string.Format("Char: [{0}]; Code: [{1}]", (char)ch.Id, ch.Id);
font.Chars.Add(ch);
}
// loading kerning information
font.Kernings.Clear();
foreach (XmlNode node in root.SelectNodes("kernings/kerning"))
{
FontKerning key = new FontKerning();
key.First = ParseInt(node, "first");
key.Second = ParseInt(node, "second");
key.Amount = ParseInt(node, "amount");
key.Description = string.Format("[{0}] [{1}] Amout: [{2}]", (char)key.First, (char)key.Second, key.Amount);
font.Kernings.Add(key);
}
return font;
}
public void LowPrint(
VertexBufferWriter vertexWriter,
IndexBufferWriter indexWriter,
float x,
float y,
float z,
string text
)
{
if (string.IsNullOrEmpty(text) == true)
{
return;
}
y += common.Base;
FontChar fontChar = null;
for (int i = 0; i < text.Length; ++i)
{
char c = text[i];
fontChar = chars[c];
if (fontChar == null)
{
continue;
}
float a = fontChar.XAdvance;
float w = fontChar.Width;
float h = fontChar.Height;
float ox = fontChar.XOffset;
float oy = fontChar.YOffset;
indexWriter.Quad(
vertexWriter.CurrentIndex,
vertexWriter.CurrentIndex + 1,
vertexWriter.CurrentIndex + 2,
vertexWriter.CurrentIndex + 3
);
indexWriter.CurrentIndex += 6;
vertexWriter.Set(position, x + ox, y - oy, z);
vertexWriter.Set(texCoord, fontChar.U, fontChar.V);
vertexWriter.Set(color, 1.0f, 1.0f, 1.0f);
++vertexWriter.CurrentIndex;
Bounds.Extend(x + ox, y - oy);
vertexWriter.Set(position, x + w + ox, y - oy, z);
vertexWriter.Set(texCoord, fontChar.U2, fontChar.V);
vertexWriter.Set(color, 1.0f, 1.0f, 1.0f);
++vertexWriter.CurrentIndex;
Bounds.Extend(x + w + ox, y - oy);
vertexWriter.Set(position, x + w + ox, y - h - oy, z);
vertexWriter.Set(texCoord, fontChar.U2, fontChar.V2);
vertexWriter.Set(color, 1.0f, 1.0f, 1.0f);
++vertexWriter.CurrentIndex;
Bounds.Extend(x + w + ox, y - h - oy);
vertexWriter.Set(position, x + ox, y - h - oy, z);
vertexWriter.Set(texCoord, fontChar.U, fontChar.V2);
vertexWriter.Set(color, 1.0f, 1.0f, 1.0f);
++vertexWriter.CurrentIndex;
Bounds.Extend(x + ox, y - h - oy);
x += a;
if (
(i + 1 < text.Length - 1) &&
(fontChar.Kernings != null)
)
{
char next = text[i + 1];
FontKerning compare = new FontKerning((short)next);
int index = fontChar.Kernings.BinarySearch(compare);
if (index >= 0)
{
short amount = fontChar.Kernings[index].Amount;
x += (float)(amount);
}
}
}
}
public static FontData LoadFontFromTextFile(TextAsset fontLayout)
{
FontData font = new FontData();
string[] lines = fontLayout.text.Split('\n');
font.Pages.Clear();
font.Chars.Clear();
font.Kernings.Clear();
foreach (string line in lines)
{
Dictionary<string, string> table = ParseLine(line);
if (table.Count == 0)
{
continue;
}
switch (table["section"])
{
case "info":
font.Info.Face = ParseString(table, "face");
font.Info.Size = ParseInt(table, "size");
font.Info.Bold = ParseBool(table, "bold");
font.Info.Italic = ParseBool(table, "italic");
font.Info.Charset = ParseString(table, "charset");
font.Info.Unicode = ParseBool(table, "unicode");
font.Info.StretchHeight = ParseInt(table, "stretchH");
font.Info.Smooth = ParseBool(table, "smooth");
font.Info.SuperSampling = ParseInt(table, "aa");
font.Info.Padding = ParseRect(table, "padding");
font.Info.Spacing = ParseVector2(table, "spacing");
font.Info.Outline = ParseInt(table, "outline");
break;
case "common":
font.Common.LineHeight = ParseInt(table, "lineHeight");
font.Common.Base = ParseInt(table, "base");
font.Common.ScaleW = ParseInt(table, "scaleW");
font.Common.ScaleH = ParseInt(table, "scaleW");
font.Common.Pages = ParseInt(table, "pages");
font.Common.Packed = ParseBool(table, "packed");
font.Common.AlphaChannel = ParseInt(table, "alphaChnl");
font.Common.RedChannel = ParseInt(table, "redChnl");
font.Common.GreenChannel = ParseInt(table, "greenChnl");
font.Common.BlueChannel = ParseInt(table, "blueChnl");
break;
case "page":
FontPage page = new FontPage();
page.Id = ParseInt(table, "id");
page.File = ParseString(table, "file");
font.Pages.Add(page);
break;
case "char":
FontChar ch = new FontChar();
ch.Id = ParseInt(table, "id");
ch.X = ParseInt(table, "x");
ch.Y = ParseInt(table, "y");
ch.Width = ParseInt(table, "width");
ch.Height = ParseInt(table, "height");
ch.XOffset = ParseInt(table, "xoffset");
ch.YOffset = ParseInt(table, "yoffset");
ch.XAdvance = ParseInt(table, "xadvance");
ch.Page = ParseInt(table, "page");
ch.Channel = ParseInt(table, "chnl");
ch.Description = string.Format("Char: [{0}]; Code: [{1}]", (char)ch.Id, ch.Id);
font.Chars.Add(ch);
break;
case "kerning":
FontKerning key = new FontKerning();
key.First = ParseInt(table, "first");
key.Second = ParseInt(table, "second");
key.Amount = ParseInt(table, "amount");
key.Description = string.Format("[{0}] [{1}] Amout: [{2}]", (char)key.First, (char)key.Second, key.Amount);
font.Kernings.Add(key);
break;
}
}
return font;
}
