/// <summary>
/// Deserializes this structure from binary data.
/// </summary>
/// <param name="reader">The <see cref="BinaryReader"/> to read the data from.</param>
/// <param name="font">Tiny Font containing this appendix.</param>
/// <exception cref="ArgumentNullException"><paramref name="reader"/> is null.</exception>
/// <exception cref="ArgumentNullException"><paramref name="font"/> is null.</exception>
public override void ReadFrom(BinaryReader reader, TinyFont font)
{
if (reader == null)
{
throw new ArgumentNullException("reader");
}
if (font == null)
{
throw new ArgumentNullException("font");
}
_mask = reader.ReadUInt16();
_reserved = reader.ReadUInt16();
_fontPlanes.Clear();
ushort positionMask = _mask;
while (positionMask != 0)
{
if ((positionMask & 1) != 0)
{
FontPlane plane = new FontPlane();
plane.ReadFrom(reader, font);
_fontPlanes.Add(plane);
}
positionMask >>= 1;
}
}
/// <summary>
/// Ensures this structure contains valid data.
/// </summary>
/// <param name="font">The <see cref="TinyFont"/> containing this appendix.</param>
public override void Update(TinyFont font)
{
UpdateAssert(_setsData.Count <= ushort.MaxValue, "Too many metadata sets.");
UpdateAssert(_setsData.Count == _setsOffsets.ItemsCount, "Metadata set offset count mismatch.");
SortedDictionary <MetadataSetOffset, byte[]> sortedSets = new SortedDictionary <MetadataSetOffset, byte[]>();
for (int i = 0; i < _setsOffsets.ItemsCount; i++)
{
sortedSets.Add(_setsOffsets[i], _setsData[i]);
}
_setsOffsets.Clear();
_setsOffsets.AddRange(sortedSets.Keys);
_setsData.Clear();
_setsData.AddRange(sortedSets.Values);
int offset = 0;
for (int i = 0; i < _setsData.Count; i++)
{
UpdateAssert(offset <= ushort.MaxValue, "Too large metadata set.");
_setsOffsets[i].Offset = (ushort)offset;
offset += _setsData[i].Length;
}
_setsOffsets.Sentinel.Id = 0xFF;
_setsOffsets.Sentinel.Offset = offset;
}
private void FillOpenType(TinyFont font)
{
HashSet <ushort> userGlyphs = new HashSet <ushort>();
foreach (CharacterImportInfo info in EnumerateAllImports())
{
if (info.Mapping.Glyph.HasValue)
{
userGlyphs.Add(info.Mapping.Glyph.Value);
}
}
Dictionary <ushort, BuilderState> allGeneratedGlyphs = new Dictionary <ushort, BuilderState>();
foreach (FeatureImportInfo feature in _features.Where(f => f.Type == FeatureImportType.Substitution))
{
foreach (ushort generatedGlyph in _compiler.GetGeneratedGlyphIds(feature.BuilderState.GlyphTypeface, feature.Script, feature.Language, feature.Feature))
{
allGeneratedGlyphs[generatedGlyph] = feature.BuilderState;
}
}
GlyphClassesAppendix classes = font.GetOrAddNewAppendix <GlyphClassesAppendix>();
SubstitutionAppendix substitution = font.GetOrAddNewAppendix <SubstitutionAppendix>();
PositioningAppendix positioning = font.GetOrAddNewAppendix <PositioningAppendix>();
Dictionary <ushort, BuilderState> glyphsToAdd = new Dictionary <ushort, BuilderState>();
foreach (FeatureImportInfo feature in _features.Where(f => f.Type == FeatureImportType.Substitution))
{
foreach (ushort generatedGlyph in _compiler.CompileFeature(feature.BuilderState.GlyphTypeface, feature.Script, feature.Language, feature.Feature, substitution, classes, allGeneratedGlyphs.Keys.Concat(userGlyphs)))
{
glyphsToAdd[generatedGlyph] = feature.BuilderState;
}
}
foreach (KeyValuePair <ushort, BuilderState> toAddPair in glyphsToAdd)
{
if (!userGlyphs.Contains(toAddPair.Key))
{
int character;
if (toAddPair.Value.GlyphToCharacterMap.TryGetValue(toAddPair.Key, out character))
{
_characterImportList[character] = new CharacterImportInfo(toAddPair.Value, new CharacterGlyphPair(character, toAddPair.Key));
}
else if (toAddPair.Key < toAddPair.Value.GlyphTypeface.GlyphCount)
{
_glyphImportList.Add(new CharacterImportInfo(toAddPair.Value, new CharacterGlyphPair(null, toAddPair.Key)));
}
userGlyphs.Add(toAddPair.Key);
}
}
foreach (FeatureImportInfo feature in _features.Where(f => f.Type == FeatureImportType.Positioning))
{
_compiler.CompileFeature(feature.BuilderState.GlyphTypeface, feature.Script, feature.Language, feature.Feature, positioning, classes, allGeneratedGlyphs.Keys.Concat(userGlyphs), feature.BuilderState.EmSize);
}
}
/// <summary>
/// Deserializes this structure from binary data.
/// </summary>
/// <param name="reader">The <see cref="BinaryReader"/> to read the data from.</param>
/// <param name="font">The <see cref="TinyFont"/> containing this appendix.</param>
/// <exception cref="ArgumentNullException"><paramref name="reader"/> is null.</exception>
public override void ReadFrom(BinaryReader reader, TinyFont font)
{
if (reader == null)
{
throw new ArgumentNullException("reader");
}
while (true)
{
MetadataSetOffset offset = new MetadataSetOffset();
offset.ReadFrom(reader);
if (offset.Id == 0xFF)
{
_setsOffsets.Sentinel = offset;
break;
}
_setsOffsets.Add(offset);
}
for (int i = 0; i < _setsOffsets.ItemsCount; i++)
{
byte[] data = reader.ReadBytes(_setsOffsets[i + 1].Offset - _setsOffsets[i].Offset);
Sets.Add(data);
}
}
/// <summary>
/// Gets size of this appendix.
/// </summary>
/// <param name="font">Tiny Font containing this appendix.</param>
/// <returns>Size in bytes.</returns>
public override int GetSize(TinyFont font)
{
return(sizeof(ushort) + sizeof(ushort) +
_coverages.Count * Coverage.SizeOf +
_coverageGlyphCount * sizeof(int));
//sizeof(ushort) * (_coverageGlyphCount % 2);
}
/// <summary>
/// Deserializes this structure from binary data.
/// </summary>
/// <param name="reader">The <see cref="BinaryReader"/> to read the data from.</param>
/// <param name="font">Tiny Font containing this appendix.</param>
/// <exception cref="ArgumentNullException"><paramref name="reader"/> is null.</exception>
public override void ReadFrom(BinaryReader reader, TinyFont font)
{
if (reader == null)
{
throw new ArgumentNullException("reader");
}
_coverageCount = reader.ReadUInt16();
_coverageGlyphCount = reader.ReadUInt16();
_coverages.Clear();
_coverages.Capacity = _coverageCount;
for (int i = 0; i < _coverageCount; i++)
{
Coverage coverage = new Coverage();
coverage.ReadFrom(reader);
_coverages.Add(coverage);
}
_coverageGlyphs.Clear();
_coverageGlyphs.Capacity = _coverageGlyphCount;
for (int i = 0; i < _coverageGlyphCount; i++)
{
CoverageGlyphs.Add(reader.ReadInt32());
}
//if (_coverageGlyphCount % 2 == 1)
// reader.ReadUInt16();
}
/// <summary>
/// Gets total size in bytes of this appendix.
/// </summary>
/// <param name="font"></param>
/// <returns></returns>
public override int GetSize(TinyFont font)
{
return(sizeof(ushort) + sizeof(ushort) +
_featureOffsets.Count * FeatureOffset.SizeOf +
_features.Sum(f => f.GetSize()) +
(_parametersHeap == null ? 0 : _parametersHeap.Length));
}
/// <summary>
/// Serializes this structure into binary data.
/// </summary>
/// <param name="writer">The <see cref="BinaryWriter"/> to write the data to.</param>
/// <param name="font">The <see cref="TinyFont"/> containing this appendix.</param>
public override void WriteTo(BinaryWriter writer, TinyFont font)
{
if (_data != null)
{
writer.Write(_data);
}
}
/// <summary>
/// Serializes this structure into binary data.
/// </summary>
/// <param name="writer">The <see cref="BinaryWriter"/> to write the data to.</param>
/// <param name="font">Tiny Font containing this appendix.</param>
/// <exception cref="ArgumentNullException"><paramref name="writer"/> is null.</exception>
public override void WriteTo(BinaryWriter writer, TinyFont font)
{
if (writer == null)
{
throw new ArgumentNullException("writer");
}
writer.Write(_featureCount);
writer.Write(_heapSize);
foreach (FeatureOffset featureOffset in _featureOffsets)
{
featureOffset.WriteTo(writer);
}
foreach (Feature feature in _features)
{
feature.WriteTo(writer);
}
if (_parametersHeap != null)
{
writer.Write(_parametersHeap);
}
}
/// <summary>
/// Creates new instance of Tiny Font from binary reader.
/// </summary>
/// <param name="reader">Source or serialized data.</param>
/// <returns>New instance of Tiny Font.</returns>
public static TinyFont Load(BinaryReader reader)
{
TinyFont font = new TinyFont();
font.ReadFrom(reader);
return(font);
}
/// <summary>
/// Ensures this structure contains valid data.
/// </summary>
/// <param name="font">The <see cref="TinyFont"/> containing this appendix.</param>
public override void Update(TinyFont font)
{
if (_data != null && _data.Length > MaximumAppendixSize)
{
throw new InvalidOperationException();
}
}
/// <summary>
/// Deserializes this structure from binary data.
/// </summary>
/// <param name="reader">The <see cref="BinaryReader"/> to read the data from.</param>
/// <param name="font">Tiny Font containing this appendix.</param>
/// <exception cref="ArgumentNullException"><paramref name="reader"/> is null.</exception>
public override void ReadFrom(BinaryReader reader, TinyFont font)
{
if (reader == null)
{
throw new ArgumentNullException("reader");
}
_offsets.Clear();
for (int i = 0; i < font.TotalCharactersCount; i++)
{
_offsets.Add(reader.ReadUInt16());
}
_attachmentListSize = reader.ReadUInt16();
_lists.Clear();
foreach (ushort offset in _offsets)
{
if (offset > 0)
{
AttachmentList list = new AttachmentList();
list.ReadFrom(reader);
_lists.Add(list);
}
}
}
/// <summary>
/// Creates new instance of Character Info.
/// </summary>
/// <param name="font">Tiny Font containing character.</param>
/// <param name="rangeIndex">Index to character range containing this character.</param>
/// <param name="c">Characeter.</param>
/// <param name="plane">Font plane describing plane to which this character belongs.</param>
/// <param name="planeNumber">Number of <paramref name="plane"/> containg this character.</param>
internal CharacterInfo(TinyFont font, int rangeIndex, char c, FontPlane plane, int planeNumber)
{
Contract.Assert(plane != null, "Plane for specified character does not exists.");
_font = font;
_characterAntialiasingData = plane.CharacterAntialiasingData;
_characterBitmapData = plane.CharacterBitmapData;
_c = (char)c;
_planeNumber = planeNumber;
_rangeIndex = rangeIndex;
_range = plane.CharacterRanges[_rangeIndex];
checked
{
_characterIndex = (int)_range.IndexOfFirstCharacter + _c - _range.FirstCharacter;
_character = plane.Characters[_characterIndex];
_offset = (int)(_range.Offset + _character.Offset);
if (_font.Description.IsExtended)
{
_antialiasOffset = (int)(plane.CharacterRangesAntialiasing[_rangeIndex].Offset + plane.CharactersAntialiasing[_characterIndex].Offset);
}
else
{
_antialiasOffset = -1;
}
}
}
private void FillVerticalMetrics(TinyFont font)
{
GlyphMetadataAppendix metadata = font.GetOrAddNewAppendix <GlyphMetadataAppendix>();
List <sbyte> marginTop = new List <sbyte>();
List <sbyte> marginBottom = new List <sbyte>();
foreach (CharacterImportInfo info in from import in _characterImportList.Values
orderby import.Mapping.Character
select import)
{
marginTop.Add(Helper.FitIntoInt8(info.EmSideBearing.Top, Trace));
marginBottom.Add(Helper.FitIntoInt8(info.EmSideBearing.Bottom, Trace));
}
foreach (CharacterImportInfo info in _glyphImportList)
{
marginTop.Add(Helper.FitIntoInt8(info.EmSideBearing.Top, Trace));
marginBottom.Add(Helper.FitIntoInt8(info.EmSideBearing.Bottom, Trace));
}
GlyphMetadataAppendix.MetadataSetOffset offsetTop = new GlyphMetadataAppendix.MetadataSetOffset();
offsetTop.Id = GlyphMetadataAppendix.MarginTopSet;
offsetTop.Bits = GlyphMetadataAppendix.MetadataSetBitLength.Eight;
metadata.Sets.Add(marginTop.Select(m => (byte)m).ToArray());
metadata.SetsOffsets.Add(offsetTop);
GlyphMetadataAppendix.MetadataSetOffset offsetBottom = new GlyphMetadataAppendix.MetadataSetOffset();
offsetBottom.Id = GlyphMetadataAppendix.MarginBottomSet;
offsetBottom.Bits = GlyphMetadataAppendix.MetadataSetBitLength.Eight;
metadata.Sets.Add(marginBottom.Select(m => (byte)m).ToArray());
metadata.SetsOffsets.Add(offsetBottom);
}
internal int GetSize(TinyFont font)
{
return(FontMetrics.SizeOf +
FontDescription.SizeOf +
BitmapDescription.SizeOf +
_characterRanges.Count * CharacterRangeDescription.SizeOf +
_characters.Count * CharacterDescription.SizeOf +
_characterBitmapData.Length +
(font.Description.IsExtended ? AntialiasingMetrics.SizeOf : 0) +
_characterRangesAntialiasing.Count * CharacterRangeAntialiasing.SizeOf +
_charactersAntialiasing.Count * CharacterAntialiasing.SizeOf +
(_characterAntialiasingData == null ? 0 : _characterAntialiasingData.Length));
}
/// <summary>
/// Serializes this structure into binary data.
/// </summary>
/// <param name="writer">The <see cref="BinaryWriter"/> to write the data to.</param>
/// <param name="font">The <see cref="TinyFont"/> containing this appendix.</param>
/// <exception cref="ArgumentNullException"><paramref name="writer"/> is null.</exception>
public override void WriteTo(BinaryWriter writer, TinyFont font)
{
if (writer == null)
{
throw new ArgumentNullException("writer");
}
foreach (MetadataSetOffset offset in _setsOffsets)
{
offset.WriteTo(writer);
}
foreach (byte[] data in _setsData)
{
writer.Write(data);
}
}
/// <summary>
/// Ensures this structure contains valid data.
/// </summary>
/// <param name="font">Tiny Font containing this appendix.</param>
public override void Update(TinyFont font)
{
UpdateAssert(_features.ItemsCount <= ushort.MaxValue, "Too many features.");
UpdateAssert(_features.ItemsCount == _featureOffsets.ItemsCount, "Feature offset count mismatch.");
UpdateAssert(_parametersHeap == null || _parametersHeap.Length <= ushort.MaxValue, "The parameters heap is too large.");
_featureCount = (ushort)_features.ItemsCount;
_heapSize = (ushort)(_parametersHeap == null ? 0 : _parametersHeap.Length);
for (int i = 0; i < _features.ItemsCount; i++)
{
_features[i].Update();
}
_features.Sentinel.StateCount = 0;
_features.Sentinel.Rules.Clear();
_features.Sentinel.StateOffsets.Clear();
_features.Sentinel.StateOffsets.Sentinel = 0;
SortedDictionary <FeatureOffset, Feature> sortedFeatures = new SortedDictionary <FeatureOffset, Feature>();
for (int i = 0; i < _featureCount; i++)
{
sortedFeatures.Add(_featureOffsets[i], _features[i]);
}
_featureOffsets.Clear();
_featureOffsets.AddRange(sortedFeatures.Keys);
_features.Clear();
_features.AddRange(sortedFeatures.Values);
int offset = 0;
for (int i = 0; i < _features.Count; i++)
{
UpdateAssert(offset <= ushort.MaxValue, "Too large feature.");
_featureOffsets[i].Offset = (ushort)offset;
offset += _features[i].GetSize();
}
_featureOffsets.Sentinel.Tag = 0xFFFFFFFF;
}
/// <summary>
/// Serializes this structure into binary data.
/// </summary>
/// <param name="writer">The <see cref="BinaryWriter"/> to write the data to.</param>
/// <param name="font">Tiny Font containing this appendix.</param>
/// <exception cref="ArgumentNullException"><paramref name="writer"/> is null.</exception>
public override void WriteTo(BinaryWriter writer, TinyFont font)
{
if (writer == null)
{
throw new ArgumentNullException("writer");
}
foreach (ushort offset in _offsets)
{
writer.Write(offset);
}
writer.Write(_attachmentListSize);
foreach (AttachmentList list in _lists)
{
list.WriteTo(writer);
}
}
/// <summary>
/// Ensures this structure contains valid data.
/// </summary>
/// <param name="font">Tiny Font containing this appendix.</param>
public override void Update(TinyFont font)
{
UpdateAssert(_lists.Count <= ushort.MaxValue, "Too many attachment points lists.");
_offsets.Clear();
int offset = 1;
foreach (AttachmentList list in _lists)
{
list.Update();
_offsets.Add((ushort)offset);
offset += (list.GetSize() / sizeof(ushort));
UpdateAssert(offset <= ushort.MaxValue, "Too many attachment points.");
}
_attachmentListSize = (ushort)(offset - 1);
}
/// <summary>
/// Ensures this structure contains valid data.
/// </summary>
/// <param name="font">Tiny Font containing this appendix.</param>
public override void Update(TinyFont font)
{
UpdateAssert(_coverages.Count <= ushort.MaxValue, "Too many coverages.");
UpdateAssert(_coverageGlyphs.Count <= ushort.MaxValue, "Too many coverage glyphs.");
_coverageCount = (ushort)_coverages.Count;
_coverageGlyphCount = (ushort)_coverageGlyphs.Count;
foreach (Coverage coverage in _coverages)
{
UpdateAssert(coverage.Offset + coverage.Count <= _coverageGlyphs.Count, "Out of range coverage.");
_coverageGlyphs.Sort(coverage.Offset, coverage.Count, Comparer <int> .Default);
}
foreach (Coverage coverage in _coverages)
{
UpdateAssert(Helper.IsSorted(_coverageGlyphs, coverage.Offset, coverage.Count, Comparer <int> .Default), "Incompatible overlapping coverages.");
}
}
/// <summary>
/// Assembles new Tiny Font from imports.
/// </summary>
/// <returns>Tiny Font.</returns>
public TinyFont Build()
{
TinyFont font = new TinyFont();
if (_features.Count > 0)
{
FillOpenType(font); // can add new characters/glyphs
}
FillMetrics(font.Metrics);
for (ushort plane = 0; plane <= LastPlane; plane++)
{
FillCharacters(font, from import in _characterImportList.Values
orderby import.Mapping.Character
select import, plane);
}
for (int i = 0; i < _glyphImportList.Count; i++)
{
_glyphImportList[i].Mapping.Character = i + LastPlaneFirstCharacter;
}
if (_glyphImportList.Count > 0)
{
FillCharacters(font, _glyphImportList, LastPlane);
}
#if TERKA_FEATURES
if (_importGraphemeClusterBoundaries)
{
FillGraphemeClusterBoundaries(font);
}
if (_importVerticalMetrics)
{
FillVerticalMetrics(font);
}
#endif
font.Update();
RemapGlyphsToCharacters(font);
return(font);
}
/// <summary>
/// Serializes this structure into binary data.
/// </summary>
/// <param name="writer">The <see cref="BinaryWriter"/> to write the data to.</param>
/// <param name="font">Tiny Font containing this appendix.</param>
/// <exception cref="ArgumentNullException"><paramref name="writer"/> is null.</exception>
/// <exception cref="ArgumentNullException"><paramref name="font"/> is null.</exception>
public override void WriteTo(BinaryWriter writer, TinyFont font)
{
if (writer == null)
{
throw new ArgumentNullException("writer");
}
if (font == null)
{
throw new ArgumentNullException("font");
}
writer.Write(_mask);
writer.Write(_reserved);
foreach (FontPlane plane in _fontPlanes)
{
plane.WriteTo(writer, font);
}
}
/// <summary>
/// Deserializes this structure from binary data.
/// </summary>
/// <param name="reader">The <see cref="BinaryReader"/> to read the data from.</param>
/// <param name="font">Tiny Font containing this appendix.</param>
/// <exception cref="ArgumentNullException"><paramref name="reader"/> is null.</exception>
public override void ReadFrom(BinaryReader reader, TinyFont font)
{
if (reader == null)
{
throw new ArgumentNullException("reader");
}
_featureCount = reader.ReadUInt16();
_heapSize = reader.ReadUInt16();
_featureOffsets.Clear();
_featureOffsets.Capacity = _featureCount;
for (int i = 0; i < _featureCount; i++)
{
FeatureOffset offset = new FeatureOffset();
offset.ReadFrom(reader);
_featureOffsets.Add(offset);
}
_featureOffsets.Sentinel.ReadFrom(reader);
_features.Clear();
_features.Capacity = _featureCount;
for (int i = 0; i < _featureCount; i++)
{
Feature feature = new Feature();
feature.ReadFrom(reader);
_features.Add(feature);
}
_features.Sentinel.ReadFrom(reader);
if (_heapSize > 0)
{
_parametersHeap = reader.ReadBytes(_heapSize);
}
}
/// <summary>
/// Ensures this structure contains valid data.
/// </summary>
/// <param name="font">Tiny Font containing this appendix.</param>
public override void Update(TinyFont font)
{
ushort positionMask = _mask;
int removedMask = 0;
int i = 0;
while (positionMask != 0)
{
if ((positionMask & 1) != 0)
{
UpdateAssert(i < _fontPlanes.Count, "Too few planes.");
UpdateAssert(_fontPlanes[i] != null, "Plane not initialized.");
_fontPlanes[i].Update();
if (!_fontPlanes[i].HasContent)
{
removedMask |= 1 << i;
_fontPlanes.RemoveAt(i);
}
else
{
// we need to keep all metrics in sync, but bitmap ~ offset can be different
short planeOffset = _fontPlanes[i].Metrics.Offset;
_fontPlanes[i].Metrics = (FontMetrics)font.Metrics.Clone();
_fontPlanes[i].Metrics.Offset = planeOffset;
i++;
}
}
positionMask >>= 1;
}
_mask &= (ushort)~removedMask;
}
/// <summary>
/// Serializes this structure into binary data.
/// </summary>
/// <param name="writer">The <see cref="BinaryWriter"/> to write the data to.</param>
/// <param name="font">Tiny Font containing this appendix.</param>
/// <exception cref="ArgumentNullException"><paramref name="writer"/> is null.</exception>
public override void WriteTo(BinaryWriter writer, TinyFont font)
{
if (writer == null)
{
throw new ArgumentNullException("writer");
}
writer.Write(_coverageCount);
writer.Write(_coverageGlyphCount);
for (int i = 0; i < _coverages.Count; i++)
{
_coverages[i].WriteTo(writer);
}
for (int i = 0; i < _coverageGlyphs.Count; i++)
{
writer.Write(_coverageGlyphs[i]);
}
//if (_coverageGlyphCount % 2 == 1)
// writer.Write((ushort)0);
}
/// <summary>
/// Serializes this structure into binary data.
/// </summary>
/// <param name="writer">The <see cref="BinaryWriter"/> to write the data to.</param>
/// <param name="font">The <see cref="TinyFont"/> containing this appendix.</param>
/// <exception cref="ArgumentNullException"><paramref name="writer"/> is null.</exception>
public void WriteTo(BinaryWriter writer, TinyFont font)
{
if (writer == null)
{
throw new ArgumentNullException();
}
if (font == null)
{
throw new ArgumentNullException();
}
_metrics.WriteTo(writer);
_description.WriteTo(writer);
_characterBitmapDescription.WriteTo(writer);
WriteBasicTo(writer);
if (font.Description.IsExtended)
{
WriteExtendedTo(writer);
}
}
/// <summary>
/// Deserializes this structure from binary data.
/// </summary>
/// <param name="reader">The <see cref="BinaryReader"/> to read the data from.</param>
/// <param name="font">The <see cref="TinyFont"/> containing this appendix.</param>
/// <exception cref="ArgumentNullException"><paramref name="reader"/> is null.</exception>
public void ReadFrom(BinaryReader reader, TinyFont font)
{
if (reader == null)
{
throw new ArgumentNullException();
}
if (font == null)
{
throw new ArgumentNullException();
}
_metrics.ReadFrom(reader);
_description.ReadFrom(reader);
_characterBitmapDescription.ReadFrom(reader);
ReadBasicFrom(reader);
if (font.Description.IsExtended)
{
ReadExtendedFrom(reader);
}
}
private void FillGraphemeClusterBoundaries(TinyFont font)
{
GlyphMetadataAppendix metadata = font.GetOrAddNewAppendix <GlyphMetadataAppendix>();
byte[] clusterBoundaries = Resources.GraphemeBreakProperty;
BitArray data = new BitArray(0);
foreach (CharacterInfo info in font.EnumerateAllCharacterInfos())
{
byte property = FindClusterProperty(clusterBoundaries, info.Codepoint);
data.AppendLsb(property, 4);
}
byte[] setData = new byte[(data.Length + 7) / 8];
data.CopyTo(setData, 0);
metadata.Sets.Add(setData);
GlyphMetadataAppendix.MetadataSetOffset offset = new GlyphMetadataAppendix.MetadataSetOffset();
offset.Id = GlyphMetadataAppendix.GraphemeSet;
offset.Bits = GlyphMetadataAppendix.MetadataSetBitLength.Four;
metadata.SetsOffsets.Add(offset);
}
private void FillCharacters(TinyFont font, IEnumerable <CharacterImportInfo> imports, ushort planeNumber)
{
Contract.Requires(font != null, "Font cannot be null.");
Contract.Requires(font.Metrics != null, "Font metrics cannot be null.");
if (font.Metrics.Height == 0)
{
Trace.TraceEvent(TraceEventType.Warning, 0, "TinyFont has a height of zero. No glyphs will be included.");
return;
}
FontPlane plane = planeNumber == 0 ? font.FontPlanes[0] : new FontPlane();
Contract.Requires(plane != null, "Plane cannot be null.");
FillDescription(plane.Description);
uint numberOfCharacters = 0;
bool antialiasing = font.Description.IsExtended;
short firstNonBlankLine = short.MaxValue;
int maxCharacterWidth = font.Metrics.MaximumCharacterWidth;
BitArray antialiasingData = new BitArray(0);
List <BitArray> bitmapData = new List <BitArray>(font.Metrics.Height);
for (int i = 0; i < font.Metrics.Height; i++)
{
bitmapData.Add(new BitArray(0));
}
int lastCharacter = -1;
CharacterRangeDescription rangeDescription = null;
CharacterRangeAntialiasing rangeAntialiasing = null;
foreach (CharacterImportInfo import in imports)
{
Contract.Assert(import.Mapping.Character.Value >= 0 && import.Mapping.Character.Value <= LastPlaneLastCharacter, "All content must have valid two bytes characters.");
Contract.Assert(import.Mapping.Character.Value > lastCharacter, "Content must be ordered by characters and cannot overlap.");
int character = import.Mapping.Character.Value;
// If character does not belong to this plane, skip it
if ((character >> 16) != planeNumber)
{
continue;
}
if (lastCharacter != (character - 1))
{
if (rangeDescription != null)
{
rangeDescription.LastCharacter = (char)lastCharacter;
plane.CharacterRanges.Add(rangeDescription);
if (antialiasing)
{
plane.CharacterRangesAntialiasing.Add(rangeAntialiasing);
}
}
rangeDescription = new CharacterRangeDescription();
rangeDescription.Offset = (uint)bitmapData[0].Length;
rangeDescription.FirstCharacter = (char)character;
rangeDescription.IndexOfFirstCharacter = numberOfCharacters;
if (antialiasing)
{
rangeAntialiasing = new CharacterRangeAntialiasing();
rangeAntialiasing.Offset = (uint)(antialiasingData.Length / BitsPerByte);
}
}
lastCharacter = character;
maxCharacterWidth = Math.Max(maxCharacterWidth, import.InkBox.Width);
++numberOfCharacters;
CharacterDescription characterDescription = new CharacterDescription();
characterDescription.LeftMargin = Helper.FitIntoInt8(import.EmSideBearing.Left, Trace);
characterDescription.RightMargin = Helper.FitIntoInt8(import.EmSideBearing.Right, Trace);
characterDescription.Offset = checked ((ushort)(bitmapData[0].Length - rangeDescription.Offset));
plane.Characters.Add(characterDescription);
if (import.BitmapData != null)
{
AppendBitmap(bitmapData, import);
short glyphFirstNonBlankLine = Helper.FitIntoInt16(import.InkBox.Y, Trace);
if (firstNonBlankLine > glyphFirstNonBlankLine)
{
firstNonBlankLine = glyphFirstNonBlankLine;
}
}
if (antialiasing)
{
CharacterAntialiasing characterAntialiasing = new CharacterAntialiasing();
characterAntialiasing.Offset = import.AntialiasData == null ? CharacterAntialiasing.NoData : checked ((ushort)(antialiasingData.Length / BitsPerByte - rangeAntialiasing.Offset));
plane.CharactersAntialiasing.Add(characterAntialiasing);
if (import.AntialiasData != null)
{
AppendAntialiasing(antialiasingData, import);
int bitPadding = antialiasingData.Length % BitsPerByte;
if (bitPadding > 0)
{
antialiasingData.Length += BitsPerByte - bitPadding;
}
}
}
}
if (numberOfCharacters > 0)
{
if (rangeDescription != null)
{
rangeDescription.LastCharacter = (char)lastCharacter;
plane.CharacterRanges.Add(rangeDescription);
if (antialiasing)
{
plane.CharacterRangesAntialiasing.Add(rangeAntialiasing);
}
}
plane.Metrics.Offset = firstNonBlankLine;
plane.CharacterBitmap.Width = (uint)bitmapData[0].Length;
plane.CharacterBitmap.Height = (uint)(bitmapData.Count - firstNonBlankLine);
plane.CharacterBitmap.BitsPerPixel = 1;
plane.CharacterBitmapData = ToBitmapData(bitmapData, firstNonBlankLine);
if (antialiasing)
{
plane.CharacterAntialiasingData = ToAntialiasingData(antialiasingData);
plane.CharacterAntialiasingMetrics.Size = (uint)plane.CharacterAntialiasingData.Length;
}
font.Metrics.MaximumCharacterWidth = Helper.FitIntoInt16(maxCharacterWidth, Trace);
font.FontPlanes[planeNumber] = plane;
}
}
private void RemapGlyphsToCharacters(TinyFont font)
{
Dictionary <ushort, int> mapping = new Dictionary <ushort, int>();
foreach (CharacterImportInfo info in _glyphImportList)
{
if (info.Mapping.Glyph.HasValue)
{
mapping[info.Mapping.Glyph.Value] = info.Mapping.Character.Value;
}
}
foreach (CharacterImportInfo info in _characterImportList.Values)
{
if (info.Mapping.Glyph.HasValue)
{
mapping[info.Mapping.Glyph.Value] = info.Mapping.Character.Value;
}
}
byte plane;
ushort planeLess;
foreach (StateMachineAppendix substition in font.Appendices.OfType <StateMachineAppendix>())
{
foreach (StateMachineAppendix.Feature feature in substition.Features)
{
foreach (StateMachineAppendix.Rule rule in feature.Rules)
{
if (rule.Condition == StateMachineAppendix.RuleCondition.Glyph)
{
RemapGlyph(mapping, rule.ConditionParameter, out plane, out planeLess);
rule.ConditionPlane = plane;
rule.ConditionParameter = planeLess;
}
switch (rule.Action)
{
case StateMachineAppendix.RuleAction.GlyphOverwrite:
case StateMachineAppendix.RuleAction.GlyphRewrite_2_1:
case StateMachineAppendix.RuleAction.GlyphRewrite_3_1:
case StateMachineAppendix.RuleAction.GlyphInsertion:
{
RemapGlyph(mapping, rule.ActionParameter, out plane, out planeLess);
rule.ActionPlane = plane;
rule.ActionParameter = planeLess;
}
break;
case StateMachineAppendix.RuleAction.GlyphRewrite_N_M:
int offset = rule.ActionParameter + sizeof(ushort);
int glyphCount = BitConverter.ToUInt16(substition.ParametersHeap, offset);
offset += sizeof(ushort);
for (int i = 0; i < glyphCount; i++, offset += sizeof(int))
{
int glyph = BitConverter.ToInt32(substition.ParametersHeap, offset);
glyph = RemapGlyph(mapping, (ushort)glyph, out plane, out planeLess);
BitConverter.GetBytes(glyph).CopyTo(substition.ParametersHeap, offset);
}
break;
}
}
}
}
foreach (GlyphClassesAppendix coverage in font.Appendices.OfType <GlyphClassesAppendix>())
{
for (int i = 0; i < coverage.CoverageGlyphs.Count; i++)
{
coverage.CoverageGlyphs[i] = RemapGlyph(mapping, (ushort)coverage.CoverageGlyphs[i], out plane, out planeLess);
}
}
}