protected override BitmapFont Read(ContentReader reader, BitmapFont existingInstance)
{
var totalTextures = reader.ReadInt32();
var textures = new Texture2D[totalTextures];
for (var i = 0; i < totalTextures; i++)
{
textures[i] = reader.ReadObject <Texture2D>();
}
var lineHeight = reader.ReadInt32();
var regionCount = reader.ReadInt32();
var regions = new BitmapFontRegion[regionCount];
for (var r = 0; r < regionCount; r++)
{
var character = (char)reader.ReadInt32();
var textureIndex = reader.ReadInt32();
var x = reader.ReadInt32();
var y = reader.ReadInt32();
var width = reader.ReadInt32();
var height = reader.ReadInt32();
var xOffset = reader.ReadInt32();
var yOffset = reader.ReadInt32();
var xAdvance = reader.ReadInt32();
var textureRegion = new Subtexture(textures[textureIndex], x, y, width, height);
regions[r] = new BitmapFontRegion(textureRegion, character, xOffset, yOffset, xAdvance);
}
return(new BitmapFont(regions, lineHeight));
}
void measureString(ref CharacterSource text, out Vector2 size)
{
if (text.Length == 0)
{
size = Vector2.Zero;
return;
}
var width = 0.0f;
var finalLineHeight = (float)lineHeight;
var fullLineCount = 0;
BitmapFontRegion currentFontRegion = null;
var offset = Vector2.Zero;
for (var i = 0; i < text.Length; i++)
{
var c = text[i];
if (c == '\r')
{
continue;
}
if (c == '\n')
{
fullLineCount++;
finalLineHeight = lineHeight;
offset.X = 0;
offset.Y = lineHeight * fullLineCount;
currentFontRegion = null;
continue;
}
if (currentFontRegion != null)
{
offset.X += spacing + currentFontRegion.xAdvance;
}
if (!_characterMap.TryGetValue(c, out currentFontRegion))
{
currentFontRegion = _defaultCharacterRegion;
}
var proposedWidth = offset.X + currentFontRegion.xAdvance + spacing;
if (proposedWidth > width)
{
width = proposedWidth;
}
if (currentFontRegion.height + currentFontRegion.yOffset > finalLineHeight)
{
finalLineHeight = currentFontRegion.height + currentFontRegion.yOffset;
}
}
size.X = width;
size.Y = fullLineCount * lineHeight + finalLineHeight;
}
/// <summary>
/// gets the BitmapFontRegion for the given char optionally substituting the default region if it isnt present.
/// </summary>
/// <returns><c>true</c>, if get font region for char was tryed, <c>false</c> otherwise.</returns>
/// <param name="c">C.</param>
/// <param name="fontRegion">Font region.</param>
/// <param name="useDefaultRegionIfNotPresent">If set to <c>true</c> use default region if not present.</param>
public bool tryGetFontRegionForChar(char c, out BitmapFontRegion fontRegion, bool useDefaultRegionIfNotPresent = false)
{
if (!_characterMap.TryGetValue(c, out fontRegion))
{
if (useDefaultRegionIfNotPresent)
{
fontRegion = defaultCharacterRegion;
return(true);
}
return(false);
}
return(true);
}
public static BitmapFont GetFromBMPSpriteFont(int xOffset, int yOffset, SpriteFont font)
{
var glyphs = font.GetGlyphs().ToArray();
var regions = new BitmapFontRegion[glyphs.Length];
for (var i = 0; i < regions.Length; i++)
{
var ch = glyphs[i].Key;
var glyph = glyphs[i].Value;
var rect = glyph.BoundsInTexture;
var subtext = new Subtexture(font.Texture, rect);
regions[i] = new BitmapFontRegion(subtext, ch, xOffset, glyph.Cropping.Y - yOffset, (int)glyph.WidthIncludingBearings);
}
return(new BitmapFont(regions, font.LineSpacing));
}
protected override BitmapFont Read(ContentReader reader, BitmapFont existingInstance)
{
Texture2D[] textures = null;
Vector2[] atlasOrigins = null;
var hasTextures = reader.ReadBoolean();
if (hasTextures)
{
var totalTextures = reader.ReadInt32();
textures = new Texture2D[totalTextures];
for (var i = 0; i < totalTextures; i++)
{
textures[i] = reader.ReadObject <Texture2D>();
}
}
else
{
var totalTextureNames = reader.ReadInt32();
atlasOrigins = new Vector2[totalTextureNames];
textures = new Texture2D[totalTextureNames];
for (var i = 0; i < totalTextureNames; i++)
{
var textureName = reader.ReadString();
atlasOrigins[i] = reader.ReadVector2();
textures[i] = reader.ContentManager.Load <Texture2D>(textureName);
}
}
var lineHeight = reader.ReadInt32();
var padTop = reader.ReadInt32();
var padLeft = reader.ReadInt32();
var padBottom = reader.ReadInt32();
var padRight = reader.ReadInt32();
var descent = reader.ReadInt32();
var regionCount = reader.ReadInt32();
var regions = new BitmapFontRegion[regionCount];
for (var r = 0; r < regionCount; r++)
{
var character = (char)reader.ReadInt32();
var textureIndex = reader.ReadInt32();
var x = reader.ReadInt32();
var y = reader.ReadInt32();
var width = reader.ReadInt32();
var height = reader.ReadInt32();
var xOffset = reader.ReadInt32();
var yOffset = reader.ReadInt32();
var xAdvance = reader.ReadInt32();
Subtexture textureRegion = null;
if (hasTextures)
{
textureRegion = new Subtexture(textures[textureIndex], x, y, width, height);
}
else
{
textureRegion = new Subtexture(textures[textureIndex], atlasOrigins[textureIndex].X + x, atlasOrigins[textureIndex].Y + y, width, height);
}
regions[r] = new BitmapFontRegion(textureRegion, character, xOffset, yOffset, xAdvance);
}
return(new BitmapFont(regions, lineHeight)
{
padTop = padTop,
padBottom = padBottom,
padRight = padRight,
padLeft = padLeft,
descent = descent
});
}
internal void drawInto(SpriteBatch spriteBatch, ref CharacterSource text, Vector2 position, Color color,
float rotation, Vector2 origin, Vector2 scale, SpriteEffects effect, float depth)
{
var flipAdjustment = Vector2.Zero;
var flippedVert = (effect & SpriteEffects.FlipVertically) == SpriteEffects.FlipVertically;
var flippedHorz = (effect & SpriteEffects.FlipHorizontally) == SpriteEffects.FlipHorizontally;
if (flippedVert || flippedHorz)
{
Vector2 size;
measureString(ref text, out size);
if (flippedHorz)
{
origin.X *= -1;
flipAdjustment.X = -size.X;
}
if (flippedVert)
{
origin.Y *= -1;
flipAdjustment.Y = lineHeight - size.Y;
}
}
var requiresTransformation = flippedHorz || flippedVert || rotation != 0f || scale != Vector2.One;
if (requiresTransformation)
{
Matrix temp;
Matrix.CreateTranslation(-origin.X, -origin.Y, 0f, out _transformationMatrix);
Matrix.CreateScale((flippedHorz ? -scale.X : scale.X), (flippedVert ? -scale.Y : scale.Y), 1f, out temp);
Matrix.Multiply(ref _transformationMatrix, ref temp, out _transformationMatrix);
Matrix.CreateTranslation(flipAdjustment.X, flipAdjustment.Y, 0, out temp);
Matrix.Multiply(ref temp, ref _transformationMatrix, out _transformationMatrix);
Matrix.CreateRotationZ(rotation, out temp);
Matrix.Multiply(ref _transformationMatrix, ref temp, out _transformationMatrix);
Matrix.CreateTranslation(position.X, position.Y, 0f, out temp);
Matrix.Multiply(ref _transformationMatrix, ref temp, out _transformationMatrix);
}
BitmapFontRegion currentFontRegion = null;
var offset = requiresTransformation ? Vector2.Zero : position - origin;
for (var i = 0; i < text.Length; ++i)
{
var c = text[i];
if (c == '\r')
{
continue;
}
if (c == '\n')
{
offset.X = requiresTransformation ? 0f : position.X - origin.X;
offset.Y += lineHeight;
currentFontRegion = null;
continue;
}
if (currentFontRegion != null)
{
offset.X += spacing + currentFontRegion.xAdvance;
}
if (!_characterMap.TryGetValue(c, out currentFontRegion))
{
currentFontRegion = _defaultCharacterRegion;
}
var p = offset;
if (flippedHorz)
{
p.X += currentFontRegion.width;
}
p.X += currentFontRegion.xOffset;
if (flippedVert)
{
p.Y += currentFontRegion.height - lineHeight;
}
p.Y += currentFontRegion.yOffset;
// transform our point if we need to
if (requiresTransformation)
{
Vector2.Transform(ref p, ref _transformationMatrix, out p);
}
var destRect = RectangleExt.fromFloats
(
p.X, p.Y,
currentFontRegion.width * scale.X,
currentFontRegion.height * scale.Y
);
spriteBatch.Draw(currentFontRegion.subtexture, destRect, currentFontRegion.subtexture.sourceRect, color, rotation, Vector2.Zero, effect, depth);
}
}
/// <summary>
/// truncates text and returns a new string with ellipsis appended if necessary. This method ignores all
/// line breaks.
/// </summary>
/// <returns>The text.</returns>
/// <param name="text">Text.</param>
/// <param name="ellipsis">Ellipsis.</param>
/// <param name="maxLineWidth">Max line width.</param>
public string truncateText(string text, string ellipsis, float maxLineWidth)
{
if (maxLineWidth < spaceWidth)
{
return(string.Empty);
}
var size = measureString(text);
// do we even need to truncate?
var ellipsisWidth = measureString(ellipsis).X;
if (size.X > maxLineWidth)
{
var sb = new StringBuilder();
var width = 0.0f;
BitmapFontRegion currentFontRegion = null;
var offsetX = 0.0f;
// determine how many chars we can fit in maxLineWidth - ellipsisWidth
for (var i = 0; i < text.Length; i++)
{
var c = text[i];
// we dont deal with line breaks or tabs
if (c == '\r' || c == '\n')
{
continue;
}
if (currentFontRegion != null)
{
offsetX += spacing + currentFontRegion.xAdvance;
}
if (!_characterMap.TryGetValue(c, out currentFontRegion))
{
currentFontRegion = defaultCharacterRegion;
}
var proposedWidth = offsetX + currentFontRegion.xAdvance + spacing;
if (proposedWidth > width)
{
width = proposedWidth;
}
if (width < maxLineWidth - ellipsisWidth)
{
sb.Append(c);
}
else
{
// no more room. append our ellipsis and get out of here
sb.Append(ellipsis);
break;
}
}
return(sb.ToString());
}
return(text);
}
