Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Core / CSharp / MS / Internal / TextFormatting / LineServicesRun.cs / 1600529 / LineServicesRun.cs
//------------------------------------------------------------------------
//
// Microsoft Windows Client Platform
// Copyright (C) Microsoft Corporation, 2001
//
// File: LSRun.cs
//
// Contents: Text run in a full text line
//
// Created: 9-6-2001 Worachai Chaoweeraprasit (wchao)
//
//-----------------------------------------------------------------------
using System;
using System.Collections;
using System.Collections.Generic;
using System.Diagnostics;
using System.Runtime.InteropServices;
using System.Windows;
using System.Windows.Media;
using System.Windows.Media.TextFormatting;
using System.Globalization;
using System.Security;
using System.Security.Permissions;
using MS.Internal.Shaping;
using MS.Internal.FontCache;
using MS.Utility;
using SR=MS.Internal.PresentationCore.SR;
using SRID=MS.Internal.PresentationCore.SRID;
using MS.Internal.Text.TextInterface;
namespace MS.Internal.TextFormatting
{
///
/// Run represented by a plsrun value dispatched to LS during FetchRun
///
internal sealed class LSRun
{
private TextRunInfo _runInfo; // TextRun Info of the text
private Plsrun _type; // Plsrun used as run type
private int _offsetToFirstCp; // dcp from line's cpFirst
private int _textRunLength; // textrun length
private CharacterBufferRange _charBufferRange; // character buffer range
private int _baselineOffset; // distance from top to baseline
private int _height; // height
private int _baselineMoveOffset; // run is moved by this offset from baseline
private int _emSize; // run ideal EM size
private TextShapeableSymbols _shapeable; // shapeable run
private ushort _charFlags; // character attribute flags
private byte _bidiLevel; // resolved bidi level
private IList _textEffects; // TextEffects that should be applied for this run
///
/// Construct an lsrun
///
internal LSRun(
TextRunInfo runInfo,
IList textEffects,
Plsrun type,
int offsetToFirstCp,
int textRunLength,
int emSize,
ushort charFlags,
CharacterBufferRange charBufferRange,
TextShapeableSymbols shapeable,
double realToIdeal,
byte bidiLevel
) :
this(
runInfo,
textEffects,
type,
offsetToFirstCp,
textRunLength,
emSize,
charFlags,
charBufferRange,
(shapeable != null ? (int)Math.Round(shapeable.Baseline * realToIdeal) : 0),
(shapeable != null ? (int)Math.Round(shapeable.Height * realToIdeal) : 0),
shapeable,
bidiLevel
)
{}
///
/// Construct an lsrun
///
private LSRun(
TextRunInfo runInfo,
IList textEffects,
Plsrun type,
int offsetToFirstCp,
int textRunLength,
int emSize,
ushort charFlags,
CharacterBufferRange charBufferRange,
int baselineOffset,
int height,
TextShapeableSymbols shapeable,
byte bidiLevel
)
{
_runInfo = runInfo;
_type = type;
_offsetToFirstCp = offsetToFirstCp;
_textRunLength = textRunLength;
_emSize = emSize;
_charFlags = charFlags;
_charBufferRange = charBufferRange;
_baselineOffset = baselineOffset;
_height = height;
_bidiLevel = bidiLevel;
_shapeable = shapeable;
_textEffects = textEffects;
}
///
/// Construct an lsrun for a constant control char
///
internal LSRun(
Plsrun type,
IntPtr controlChar
) :
this(
null, // text run info
type,
controlChar,
0, // textRunLength
-1, // offsetToFirstChar
0
)
{}
///
/// Construct an lsrun
///
/// TextRunInfo
/// plsrun type
/// control character
/// text run length
/// character offset to the first cp
/// bidi level of this run
///
/// Critical: This has an unsafe code block
/// TreatAsSafe: This code is ok to call since it does not expose the critical pointer
///
[SecurityCritical, SecurityTreatAsSafe]
internal LSRun(
TextRunInfo runInfo,
Plsrun type,
IntPtr controlChar,
int textRunLength,
int offsetToFirstCp,
byte bidiLevel
)
{
unsafe
{
_runInfo = runInfo;
_type = type;
_charBufferRange = new CharacterBufferRange((char*)controlChar, 1);
_textRunLength = textRunLength;
_offsetToFirstCp = offsetToFirstCp;
_bidiLevel = bidiLevel;
}
}
internal void Truncate(int newLength)
{
_charBufferRange = new CharacterBufferRange(
_charBufferRange.CharacterBufferReference,
newLength
);
_textRunLength = newLength;
}
///
/// A Boolean value indicates whether hit-testing is allowed within the run
///
internal bool IsHitTestable
{
get
{
return _type == Plsrun.Text;
}
}
///
/// A Boolean value indicates whether this run contains visible content.
///
internal bool IsVisible
{
get
{
return (_type == Plsrun.Text || _type == Plsrun.InlineObject);
}
}
///
/// A Boolean value indicates whether this run is End-Of-Line marker.
///
internal bool IsNewline
{
get
{
return (_type == Plsrun.LineBreak || _type == Plsrun.ParaBreak);
}
}
///
/// A Boolean value indicates whether additional info is required for caret positioning
///
internal bool NeedsCaretInfo
{
get
{
return _shapeable != null && _shapeable.NeedsCaretInfo;
}
}
///
/// A Boolean value indicates whether run has extended character
///
internal bool HasExtendedCharacter
{
get
{
return _shapeable != null && _shapeable.HasExtendedCharacter;
}
}
///
/// Draw glyphrun
///
/// The drawing context to draw into
///
/// The foreground brush of the glyphrun. Pass in "null" to draw the
/// glyph run with the foreground in TextRunProperties.
///
/// The GlyphRun to be drawn
/// bounding rectangle of drawn glyphrun
///
/// TextEffect drawing code may use a different foreground brush for the text.
///
internal Rect DrawGlyphRun(
DrawingContext drawingContext,
Brush foregroundBrush,
GlyphRun glyphRun
)
{
Debug.Assert(_shapeable != null);
Rect inkBoundingBox = glyphRun.ComputeInkBoundingBox();
if (!inkBoundingBox.IsEmpty)
{
// glyph run's ink bounding box is relative to its origin
inkBoundingBox.X += glyphRun.BaselineOrigin.X;
inkBoundingBox.Y += glyphRun.BaselineOrigin.Y;
}
if (drawingContext != null)
{
int pushCount = 0; // the number of push we do
try
{
if (_textEffects != null)
{
// we need to push in the same order as they are set
for (int i = 0; i < _textEffects.Count; i++)
{
// get the text effect by its index
TextEffect textEffect = _textEffects[i];
if (textEffect.Transform != null && textEffect.Transform != Transform.Identity)
{
drawingContext.PushTransform(textEffect.Transform);
pushCount++;
}
if (textEffect.Clip != null)
{
drawingContext.PushClip(textEffect.Clip);
pushCount++;
}
if (textEffect.Foreground != null)
{
// remember the out-most non-null brush
// this brush will be used to draw the glyph run
foregroundBrush = textEffect.Foreground;
}
}
}
_shapeable.Draw(drawingContext, foregroundBrush, glyphRun);
}
finally
{
for (int i = 0; i < pushCount; i++)
{
drawingContext.Pop();
}
}
}
return inkBoundingBox;
}
///
/// Map a UV real coordinate to an XY real coordinate
///
/// line drawing origin XY
/// vector to line origin UV
/// real distance in text flow direction
/// real distance in paragraph flow direction
/// container line
internal static Point UVToXY(
Point origin,
Point vectorToOrigin,
double u,
double v,
TextMetrics.FullTextLine line
)
{
Point xy;
origin.Y += vectorToOrigin.Y;
if (line.RightToLeft)
{
xy = new Point(line.Formatter.IdealToReal(line.ParagraphWidth) - vectorToOrigin.X - u + origin.X, v + origin.Y);
}
else
{
xy = new Point(u + vectorToOrigin.X + origin.X, v + origin.Y);
}
return xy;
}
///
/// Map a UV ideal coordinate to an XY real coordinate
///
/// line drawing origin
/// vector to line origin UV
/// ideal distance in text flow direction
/// ideal distance in paragraph flow direction
/// container line
internal static Point UVToXY(
Point origin,
Point vectorToOrigin,
int u,
int v,
TextMetrics.FullTextLine line
)
{
Point xy;
origin.Y += vectorToOrigin.Y;
if (line.RightToLeft)
{
xy = new Point(line.Formatter.IdealToReal(line.ParagraphWidth - u) - vectorToOrigin.X + origin.X, line.Formatter.IdealToReal(v) + origin.Y);
}
else
{
xy = new Point(line.Formatter.IdealToReal(u) + vectorToOrigin.X + origin.X, line.Formatter.IdealToReal(v) + origin.Y);
}
return xy;
}
///
/// Map a UV ideal coordinate to an XY ideal coordinate
///
/// line drawing origin
/// vector to line origin UV
/// ideal distance in text flow direction
/// ideal distance in paragraph flow direction
/// container line
/// ideal X origin
/// ideal Y origin
internal static void UVToNominalXY(
Point origin,
Point vectorToOrigin,
int u,
int v,
TextMetrics.FullTextLine line,
out int nominalX,
out int nominalY
)
{
origin.Y += vectorToOrigin.Y;
if (line.RightToLeft)
{
nominalX = line.ParagraphWidth - u + TextFormatterImp.RealToIdeal(-vectorToOrigin.X + origin.X);
}
else
{
nominalX = u + TextFormatterImp.RealToIdeal(vectorToOrigin.X + origin.X);
}
nominalY = v + TextFormatterImp.RealToIdeal(origin.Y);
}
///
/// Create a rectangle of the two specified UV coordinates
///
/// line drawing origin
/// logical top-left point
/// logical bottom-right point
/// container line
internal static Rect RectUV(
Point origin,
LSPOINT topLeft,
LSPOINT bottomRight,
TextMetrics.FullTextLine line
)
{
int dx = topLeft.x - bottomRight.x;
if(dx == 1 || dx == -1)
{
// in certain situation LS can be off by 1
bottomRight.x = topLeft.x;
}
Rect rect = new Rect(
new Point(line.Formatter.IdealToReal(topLeft.x), line.Formatter.IdealToReal(topLeft.y)),
new Point(line.Formatter.IdealToReal(bottomRight.x), line.Formatter.IdealToReal(bottomRight.y))
);
if(DoubleUtil.AreClose(rect.TopLeft.X, rect.BottomRight.X))
{
rect.Width = 0;
}
if(DoubleUtil.AreClose(rect.TopLeft.Y, rect.BottomRight.Y))
{
rect.Height = 0;
}
return rect;
}
///
/// Move text run's baseline by the specified value
///
/// offset to be moved away from baseline
internal void Move(int baselineMoveOffset)
{
_baselineMoveOffset += baselineMoveOffset;
}
internal byte BidiLevel
{
get { return _bidiLevel; }
}
internal bool IsSymbol
{
get
{
TextShapeableCharacters shapeable = _shapeable as TextShapeableCharacters;
return shapeable != null && shapeable.IsSymbol;
}
}
internal int OffsetToFirstCp
{
get { return _offsetToFirstCp; }
}
internal int Length
{
get { return _textRunLength; }
}
internal TextModifierScope TextModifierScope
{
get { return _runInfo.TextModifierScope; }
}
internal Plsrun Type
{
get { return _type; }
}
internal ushort CharacterAttributeFlags
{
get { return _charFlags; }
}
internal CharacterBuffer CharacterBuffer
{
get { return _charBufferRange.CharacterBuffer; }
}
internal int StringLength
{
get { return _charBufferRange.Length; }
}
internal int OffsetToFirstChar
{
get { return _charBufferRange.OffsetToFirstChar; }
}
internal TextRun TextRun
{
get { return _runInfo.TextRun; }
}
internal TextShapeableSymbols Shapeable
{
get { return _shapeable; }
}
internal int BaselineOffset
{
get { return _baselineOffset; }
set { _baselineOffset = value; }
}
internal int Height
{
get { return _height; }
set { _height = value; }
}
internal int Descent
{
get { return Height - BaselineOffset; }
}
internal TextRunProperties RunProp
{
get
{
return _runInfo.Properties;
}
}
internal CultureInfo TextCulture
{
get
{
return CultureMapper.GetSpecificCulture(RunProp != null ? RunProp.CultureInfo : null);
}
}
internal int EmSize
{
get { return _emSize; }
}
internal int BaselineMoveOffset
{
get { return _baselineMoveOffset; }
}
///
/// required set of features that will be added to every feature set
/// It will be used if nothing is set in typogrpahy porperties
///
private enum CustomOpenTypeFeatures
{
AlternativeFractions ,
PetiteCapitalsFrom----s ,
SmallCapitalsFrom----s ,
ContextualAlternates ,
CaseSensitiveForms ,
ContextualLigatures ,
CapitalSpacing ,
ContextualSwash ,
CursivePositioning ,
DiscretionaryLigatures ,
ExpertForms ,
Fractions ,
FullWidth ,
HalfForms ,
HalantForms ,
AlternateHalfWidth ,
HistoricalForms ,
HorizontalKanaAlternates ,
HistoricalLigatures ,
HojoKanjiForms ,
HalfWidth ,
JIS78Forms ,
JIS83Forms ,
JIS90Forms ,
JIS04Forms ,
Kerning ,
StandardLigatures ,
LiningFigures ,
MathematicalGreek ,
AlternateAnnotationForms ,
NLCKanjiForms ,
OldStyleFigures ,
Ordinals ,
ProportionalAlternateWidth ,
PetiteCapitals ,
ProportionalFigures ,
ProportionalWidths ,
QuarterWidths ,
RubyNotationForms ,
StylisticAlternates ,
ScientificInferiors ,
SmallCapitals ,
SimplifiedForms ,
StylisticSet1 ,
StylisticSet2 ,
StylisticSet3 ,
StylisticSet4 ,
StylisticSet5 ,
StylisticSet6 ,
StylisticSet7 ,
StylisticSet8 ,
StylisticSet9 ,
StylisticSet10 ,
StylisticSet11 ,
StylisticSet12 ,
StylisticSet13 ,
StylisticSet14 ,
StylisticSet15 ,
StylisticSet16 ,
StylisticSet17 ,
StylisticSet18 ,
StylisticSet19 ,
StylisticSet20 ,
Subscript ,
Superscript ,
Swash ,
Titling ,
TraditionalNameForms ,
TabularFigures ,
TraditionalForms ,
ThirdWidths ,
Unicase ,
SlashedZero ,
Count
}
private const ushort FeatureNotEnabled = 0xffff;
private static DWriteFontFeature[] CreateDWriteFontFeatures(TextRunTypographyProperties textRunTypographyProperties)
{
if (textRunTypographyProperties != null)
{
if (textRunTypographyProperties.CachedFeatureSet != null)
{
return textRunTypographyProperties.CachedFeatureSet;
}
else
{
List fontFeatures = new List((int)CustomOpenTypeFeatures.Count);
if (textRunTypographyProperties.CapitalSpacing)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.CapitalSpacing, 1));
}
if (textRunTypographyProperties.CaseSensitiveForms)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.CaseSensitiveForms, 1));
}
if (textRunTypographyProperties.ContextualAlternates)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.ContextualAlternates, 1));
}
if (textRunTypographyProperties.ContextualLigatures)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.ContextualLigatures, 1));
}
if (textRunTypographyProperties.DiscretionaryLigatures)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.DiscretionaryLigatures, 1));
}
if (textRunTypographyProperties.HistoricalForms)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.HistoricalForms, 1));
}
if (textRunTypographyProperties.HistoricalLigatures)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.HistoricalLigatures, 1));
}
if (textRunTypographyProperties.Kerning)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.Kerning, 1));
}
if (textRunTypographyProperties.MathematicalGreek)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.MathematicalGreek, 1));
}
if (textRunTypographyProperties.SlashedZero)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.SlashedZero, 1));
}
if (textRunTypographyProperties.StandardLigatures)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.StandardLigatures, 1));
}
if (textRunTypographyProperties.StylisticSet1)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.StylisticSet1, 1));
}
if (textRunTypographyProperties.StylisticSet10)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.StylisticSet10, 1));
}
if (textRunTypographyProperties.StylisticSet11)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.StylisticSet11, 1));
}
if (textRunTypographyProperties.StylisticSet12)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.StylisticSet12, 1));
}
if (textRunTypographyProperties.StylisticSet13)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.StylisticSet13, 1));
}
if (textRunTypographyProperties.StylisticSet14)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.StylisticSet14, 1));
}
if (textRunTypographyProperties.StylisticSet15)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.StylisticSet15, 1));
}
if (textRunTypographyProperties.StylisticSet16)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.StylisticSet16, 1));
}
if (textRunTypographyProperties.StylisticSet17)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.StylisticSet17, 1));
}
if (textRunTypographyProperties.StylisticSet18)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.StylisticSet18, 1));
}
if (textRunTypographyProperties.StylisticSet19)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.StylisticSet19, 1));
}
if (textRunTypographyProperties.StylisticSet2)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.StylisticSet2, 1));
}
if (textRunTypographyProperties.StylisticSet20)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.StylisticSet20, 1));
}
if (textRunTypographyProperties.StylisticSet3)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.StylisticSet3, 1));
}
if (textRunTypographyProperties.StylisticSet4)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.StylisticSet4, 1));
}
if (textRunTypographyProperties.StylisticSet5)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.StylisticSet5, 1));
}
if (textRunTypographyProperties.StylisticSet6)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.StylisticSet6, 1));
}
if (textRunTypographyProperties.StylisticSet7)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.StylisticSet7, 1));
}
if (textRunTypographyProperties.StylisticSet8)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.StylisticSet8, 1));
}
if (textRunTypographyProperties.StylisticSet9)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.StylisticSet9, 1));
}
if (textRunTypographyProperties.EastAsianExpertForms)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.ExpertForms, 1));
}
if (textRunTypographyProperties.AnnotationAlternates > 0)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.AlternateAnnotationForms, checked((uint)textRunTypographyProperties.AnnotationAlternates)));
}
if (textRunTypographyProperties.ContextualSwashes > 0)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.ContextualSwash, checked((uint)textRunTypographyProperties.ContextualSwashes)));
}
if (textRunTypographyProperties.StylisticAlternates > 0)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.StylisticAlternates, checked((uint)textRunTypographyProperties.StylisticAlternates)));
}
if (textRunTypographyProperties.StandardSwashes > 0)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.Swash, checked((uint)textRunTypographyProperties.StandardSwashes)));
}
switch (textRunTypographyProperties.Capitals)
{
case FontCapitals.AllPetiteCaps: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.PetiteCapitals, 1));
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.PetiteCapitalsFrom----s, 1));
break;
case FontCapitals.AllSmallCaps: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.SmallCapitals, 1));
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.SmallCapitalsFrom----s, 1));
break;
case FontCapitals.PetiteCaps: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.PetiteCapitals, 1));
break;
case FontCapitals.SmallCaps: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.SmallCapitals, 1));
break;
case FontCapitals.Titling: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.Titling, 1));
break;
case FontCapitals.Unicase: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.Unicase, 1));
break;
}
switch (textRunTypographyProperties.EastAsianLanguage)
{
case FontEastAsianLanguage.Simplified: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.SimplifiedForms, 1));
break;
case FontEastAsianLanguage.Traditional: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.TraditionalForms, 1));
break;
case FontEastAsianLanguage.TraditionalNames: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.TraditionalNameForms, 1));
break;
case FontEastAsianLanguage.NlcKanji: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.NLCKanjiForms, 1));
break;
case FontEastAsianLanguage.HojoKanji: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.HojoKanjiForms, 1));
break;
case FontEastAsianLanguage.Jis78: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.JIS78Forms, 1));
break;
case FontEastAsianLanguage.Jis83: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.JIS83Forms, 1));
break;
case FontEastAsianLanguage.Jis90: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.JIS90Forms, 1));
break;
case FontEastAsianLanguage.Jis04: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.JIS04Forms, 1));
break;
}
switch (textRunTypographyProperties.Fraction)
{
case FontFraction.Stacked: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.AlternativeFractions, 1));
break;
case FontFraction.Slashed: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.Fractions, 1));
break;
}
switch (textRunTypographyProperties.NumeralAlignment)
{
case FontNumeralAlignment.Proportional: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.ProportionalFigures, 1));
break;
case FontNumeralAlignment.Tabular: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.TabularFigures, 1));
break;
}
switch (textRunTypographyProperties.NumeralStyle)
{
case FontNumeralStyle.Lining: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.LiningFigures, 1));
break;
case FontNumeralStyle.OldStyle: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.OldStyleFigures, 1));
break;
}
switch (textRunTypographyProperties.Variants)
{
case FontVariants.Inferior: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.ScientificInferiors, 1));
break;
case FontVariants.Ordinal: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.Ordinals, 1));
break;
case FontVariants.Ruby: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.RubyNotationForms, 1));
break;
case FontVariants.Subscript: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.Subscript, 1));
break;
case FontVariants.Superscript: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.Superscript, 1));
break;
}
switch (textRunTypographyProperties.EastAsianWidths)
{
case FontEastAsianWidths.Proportional:
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.ProportionalWidths, 1));
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.ProportionalAlternateWidth, 1));
break;
case FontEastAsianWidths.Full: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.FullWidth, 1));
break;
case FontEastAsianWidths.Half:
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.HalfWidth, 1));
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.AlternateHalfWidth, 1));
break;
case FontEastAsianWidths.Third: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.ThirdWidths, 1));
break;
case FontEastAsianWidths.Quarter: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.QuarterWidths, 1));
break;
}
textRunTypographyProperties.CachedFeatureSet = fontFeatures.ToArray();
return textRunTypographyProperties.CachedFeatureSet;
}
}
return null;
}
///
/// Compile feature set from the linked list of LSRuns.
/// TypographyProperties should be either all null or all not-null.
/// First is used for internal purposes, also can be used by simple clients.
///
///
/// Critical - deals with unsafe int array
///
[SecurityCritical]
internal static unsafe void CompileFeatureSet(
LSRun[] lsruns,
int* pcchRuns,
uint totalLength,
out DWriteFontFeature[][] fontFeatures,
out uint[] fontFeatureRanges
)
{
Debug.Assert(lsruns != null && lsruns.Length > 0 && lsruns[0] != null);
//
// Quick check for null properties
// Run properties should be all null or all not null
//
if (lsruns[0].RunProp.TypographyProperties == null)
{
for (int i = 1; i < lsruns.Length; i++)
{
if (lsruns[i].RunProp.TypographyProperties != null)
{
throw new ArgumentException(SR.Get(SRID.CompileFeatureSet_InvalidTypographyProperties));
}
}
fontFeatures = null;
fontFeatureRanges = null;
return;
}
//End of quick check. We will process custom features now.
fontFeatures = new DWriteFontFeature[lsruns.Length][];
fontFeatureRanges = new uint[lsruns.Length];
for (int i = 0; i < lsruns.Length; i++)
{
TextRunTypographyProperties properties = lsruns[i].RunProp.TypographyProperties;
fontFeatures[i] = CreateDWriteFontFeatures(properties);
fontFeatureRanges[i] = checked((uint)pcchRuns[i]);
}
}
///
/// Compile feature set from the linked list of LSRuns.
/// TypographyProperties should be either all null or all not-null.
/// First is used for internal purposes, also can be used by simple clients.
///
internal static void CompileFeatureSet(
TextRunTypographyProperties textRunTypographyProperties,
uint totalLength,
out DWriteFontFeature[][] fontFeatures,
out uint[] fontFeatureRanges
)
{
//
// Quick check for null properties
// Run properties should be all null or all not null
//
if (textRunTypographyProperties == null)
{
fontFeatures = null;
fontFeatureRanges = null;
}
else
{
// End of quick check. We will process custom features now.
fontFeatures = new DWriteFontFeature[1][];
fontFeatureRanges = new uint[1];
fontFeatures[0] = CreateDWriteFontFeatures(textRunTypographyProperties);
fontFeatureRanges[0] = totalLength;
}
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
//------------------------------------------------------------------------
//
// Microsoft Windows Client Platform
// Copyright (C) Microsoft Corporation, 2001
//
// File: LSRun.cs
//
// Contents: Text run in a full text line
//
// Created: 9-6-2001 Worachai Chaoweeraprasit (wchao)
//
//-----------------------------------------------------------------------
using System;
using System.Collections;
using System.Collections.Generic;
using System.Diagnostics;
using System.Runtime.InteropServices;
using System.Windows;
using System.Windows.Media;
using System.Windows.Media.TextFormatting;
using System.Globalization;
using System.Security;
using System.Security.Permissions;
using MS.Internal.Shaping;
using MS.Internal.FontCache;
using MS.Utility;
using SR=MS.Internal.PresentationCore.SR;
using SRID=MS.Internal.PresentationCore.SRID;
using MS.Internal.Text.TextInterface;
namespace MS.Internal.TextFormatting
{
///
/// Run represented by a plsrun value dispatched to LS during FetchRun
///
internal sealed class LSRun
{
private TextRunInfo _runInfo; // TextRun Info of the text
private Plsrun _type; // Plsrun used as run type
private int _offsetToFirstCp; // dcp from line's cpFirst
private int _textRunLength; // textrun length
private CharacterBufferRange _charBufferRange; // character buffer range
private int _baselineOffset; // distance from top to baseline
private int _height; // height
private int _baselineMoveOffset; // run is moved by this offset from baseline
private int _emSize; // run ideal EM size
private TextShapeableSymbols _shapeable; // shapeable run
private ushort _charFlags; // character attribute flags
private byte _bidiLevel; // resolved bidi level
private IList _textEffects; // TextEffects that should be applied for this run
///
/// Construct an lsrun
///
internal LSRun(
TextRunInfo runInfo,
IList textEffects,
Plsrun type,
int offsetToFirstCp,
int textRunLength,
int emSize,
ushort charFlags,
CharacterBufferRange charBufferRange,
TextShapeableSymbols shapeable,
double realToIdeal,
byte bidiLevel
) :
this(
runInfo,
textEffects,
type,
offsetToFirstCp,
textRunLength,
emSize,
charFlags,
charBufferRange,
(shapeable != null ? (int)Math.Round(shapeable.Baseline * realToIdeal) : 0),
(shapeable != null ? (int)Math.Round(shapeable.Height * realToIdeal) : 0),
shapeable,
bidiLevel
)
{}
///
/// Construct an lsrun
///
private LSRun(
TextRunInfo runInfo,
IList textEffects,
Plsrun type,
int offsetToFirstCp,
int textRunLength,
int emSize,
ushort charFlags,
CharacterBufferRange charBufferRange,
int baselineOffset,
int height,
TextShapeableSymbols shapeable,
byte bidiLevel
)
{
_runInfo = runInfo;
_type = type;
_offsetToFirstCp = offsetToFirstCp;
_textRunLength = textRunLength;
_emSize = emSize;
_charFlags = charFlags;
_charBufferRange = charBufferRange;
_baselineOffset = baselineOffset;
_height = height;
_bidiLevel = bidiLevel;
_shapeable = shapeable;
_textEffects = textEffects;
}
///
/// Construct an lsrun for a constant control char
///
internal LSRun(
Plsrun type,
IntPtr controlChar
) :
this(
null, // text run info
type,
controlChar,
0, // textRunLength
-1, // offsetToFirstChar
0
)
{}
///
/// Construct an lsrun
///
/// TextRunInfo
/// plsrun type
/// control character
/// text run length
/// character offset to the first cp
/// bidi level of this run
///
/// Critical: This has an unsafe code block
/// TreatAsSafe: This code is ok to call since it does not expose the critical pointer
///
[SecurityCritical, SecurityTreatAsSafe]
internal LSRun(
TextRunInfo runInfo,
Plsrun type,
IntPtr controlChar,
int textRunLength,
int offsetToFirstCp,
byte bidiLevel
)
{
unsafe
{
_runInfo = runInfo;
_type = type;
_charBufferRange = new CharacterBufferRange((char*)controlChar, 1);
_textRunLength = textRunLength;
_offsetToFirstCp = offsetToFirstCp;
_bidiLevel = bidiLevel;
}
}
internal void Truncate(int newLength)
{
_charBufferRange = new CharacterBufferRange(
_charBufferRange.CharacterBufferReference,
newLength
);
_textRunLength = newLength;
}
///
/// A Boolean value indicates whether hit-testing is allowed within the run
///
internal bool IsHitTestable
{
get
{
return _type == Plsrun.Text;
}
}
///
/// A Boolean value indicates whether this run contains visible content.
///
internal bool IsVisible
{
get
{
return (_type == Plsrun.Text || _type == Plsrun.InlineObject);
}
}
///
/// A Boolean value indicates whether this run is End-Of-Line marker.
///
internal bool IsNewline
{
get
{
return (_type == Plsrun.LineBreak || _type == Plsrun.ParaBreak);
}
}
///
/// A Boolean value indicates whether additional info is required for caret positioning
///
internal bool NeedsCaretInfo
{
get
{
return _shapeable != null && _shapeable.NeedsCaretInfo;
}
}
///
/// A Boolean value indicates whether run has extended character
///
internal bool HasExtendedCharacter
{
get
{
return _shapeable != null && _shapeable.HasExtendedCharacter;
}
}
///
/// Draw glyphrun
///
/// The drawing context to draw into
///
/// The foreground brush of the glyphrun. Pass in "null" to draw the
/// glyph run with the foreground in TextRunProperties.
///
/// The GlyphRun to be drawn
/// bounding rectangle of drawn glyphrun
///
/// TextEffect drawing code may use a different foreground brush for the text.
///
internal Rect DrawGlyphRun(
DrawingContext drawingContext,
Brush foregroundBrush,
GlyphRun glyphRun
)
{
Debug.Assert(_shapeable != null);
Rect inkBoundingBox = glyphRun.ComputeInkBoundingBox();
if (!inkBoundingBox.IsEmpty)
{
// glyph run's ink bounding box is relative to its origin
inkBoundingBox.X += glyphRun.BaselineOrigin.X;
inkBoundingBox.Y += glyphRun.BaselineOrigin.Y;
}
if (drawingContext != null)
{
int pushCount = 0; // the number of push we do
try
{
if (_textEffects != null)
{
// we need to push in the same order as they are set
for (int i = 0; i < _textEffects.Count; i++)
{
// get the text effect by its index
TextEffect textEffect = _textEffects[i];
if (textEffect.Transform != null && textEffect.Transform != Transform.Identity)
{
drawingContext.PushTransform(textEffect.Transform);
pushCount++;
}
if (textEffect.Clip != null)
{
drawingContext.PushClip(textEffect.Clip);
pushCount++;
}
if (textEffect.Foreground != null)
{
// remember the out-most non-null brush
// this brush will be used to draw the glyph run
foregroundBrush = textEffect.Foreground;
}
}
}
_shapeable.Draw(drawingContext, foregroundBrush, glyphRun);
}
finally
{
for (int i = 0; i < pushCount; i++)
{
drawingContext.Pop();
}
}
}
return inkBoundingBox;
}
///
/// Map a UV real coordinate to an XY real coordinate
///
/// line drawing origin XY
/// vector to line origin UV
/// real distance in text flow direction
/// real distance in paragraph flow direction
/// container line
internal static Point UVToXY(
Point origin,
Point vectorToOrigin,
double u,
double v,
TextMetrics.FullTextLine line
)
{
Point xy;
origin.Y += vectorToOrigin.Y;
if (line.RightToLeft)
{
xy = new Point(line.Formatter.IdealToReal(line.ParagraphWidth) - vectorToOrigin.X - u + origin.X, v + origin.Y);
}
else
{
xy = new Point(u + vectorToOrigin.X + origin.X, v + origin.Y);
}
return xy;
}
///
/// Map a UV ideal coordinate to an XY real coordinate
///
/// line drawing origin
/// vector to line origin UV
/// ideal distance in text flow direction
/// ideal distance in paragraph flow direction
/// container line
internal static Point UVToXY(
Point origin,
Point vectorToOrigin,
int u,
int v,
TextMetrics.FullTextLine line
)
{
Point xy;
origin.Y += vectorToOrigin.Y;
if (line.RightToLeft)
{
xy = new Point(line.Formatter.IdealToReal(line.ParagraphWidth - u) - vectorToOrigin.X + origin.X, line.Formatter.IdealToReal(v) + origin.Y);
}
else
{
xy = new Point(line.Formatter.IdealToReal(u) + vectorToOrigin.X + origin.X, line.Formatter.IdealToReal(v) + origin.Y);
}
return xy;
}
///
/// Map a UV ideal coordinate to an XY ideal coordinate
///
/// line drawing origin
/// vector to line origin UV
/// ideal distance in text flow direction
/// ideal distance in paragraph flow direction
/// container line
/// ideal X origin
/// ideal Y origin
internal static void UVToNominalXY(
Point origin,
Point vectorToOrigin,
int u,
int v,
TextMetrics.FullTextLine line,
out int nominalX,
out int nominalY
)
{
origin.Y += vectorToOrigin.Y;
if (line.RightToLeft)
{
nominalX = line.ParagraphWidth - u + TextFormatterImp.RealToIdeal(-vectorToOrigin.X + origin.X);
}
else
{
nominalX = u + TextFormatterImp.RealToIdeal(vectorToOrigin.X + origin.X);
}
nominalY = v + TextFormatterImp.RealToIdeal(origin.Y);
}
///
/// Create a rectangle of the two specified UV coordinates
///
/// line drawing origin
/// logical top-left point
/// logical bottom-right point
/// container line
internal static Rect RectUV(
Point origin,
LSPOINT topLeft,
LSPOINT bottomRight,
TextMetrics.FullTextLine line
)
{
int dx = topLeft.x - bottomRight.x;
if(dx == 1 || dx == -1)
{
// in certain situation LS can be off by 1
bottomRight.x = topLeft.x;
}
Rect rect = new Rect(
new Point(line.Formatter.IdealToReal(topLeft.x), line.Formatter.IdealToReal(topLeft.y)),
new Point(line.Formatter.IdealToReal(bottomRight.x), line.Formatter.IdealToReal(bottomRight.y))
);
if(DoubleUtil.AreClose(rect.TopLeft.X, rect.BottomRight.X))
{
rect.Width = 0;
}
if(DoubleUtil.AreClose(rect.TopLeft.Y, rect.BottomRight.Y))
{
rect.Height = 0;
}
return rect;
}
///
/// Move text run's baseline by the specified value
///
/// offset to be moved away from baseline
internal void Move(int baselineMoveOffset)
{
_baselineMoveOffset += baselineMoveOffset;
}
internal byte BidiLevel
{
get { return _bidiLevel; }
}
internal bool IsSymbol
{
get
{
TextShapeableCharacters shapeable = _shapeable as TextShapeableCharacters;
return shapeable != null && shapeable.IsSymbol;
}
}
internal int OffsetToFirstCp
{
get { return _offsetToFirstCp; }
}
internal int Length
{
get { return _textRunLength; }
}
internal TextModifierScope TextModifierScope
{
get { return _runInfo.TextModifierScope; }
}
internal Plsrun Type
{
get { return _type; }
}
internal ushort CharacterAttributeFlags
{
get { return _charFlags; }
}
internal CharacterBuffer CharacterBuffer
{
get { return _charBufferRange.CharacterBuffer; }
}
internal int StringLength
{
get { return _charBufferRange.Length; }
}
internal int OffsetToFirstChar
{
get { return _charBufferRange.OffsetToFirstChar; }
}
internal TextRun TextRun
{
get { return _runInfo.TextRun; }
}
internal TextShapeableSymbols Shapeable
{
get { return _shapeable; }
}
internal int BaselineOffset
{
get { return _baselineOffset; }
set { _baselineOffset = value; }
}
internal int Height
{
get { return _height; }
set { _height = value; }
}
internal int Descent
{
get { return Height - BaselineOffset; }
}
internal TextRunProperties RunProp
{
get
{
return _runInfo.Properties;
}
}
internal CultureInfo TextCulture
{
get
{
return CultureMapper.GetSpecificCulture(RunProp != null ? RunProp.CultureInfo : null);
}
}
internal int EmSize
{
get { return _emSize; }
}
internal int BaselineMoveOffset
{
get { return _baselineMoveOffset; }
}
///
/// required set of features that will be added to every feature set
/// It will be used if nothing is set in typogrpahy porperties
///
private enum CustomOpenTypeFeatures
{
AlternativeFractions ,
PetiteCapitalsFrom----s ,
SmallCapitalsFrom----s ,
ContextualAlternates ,
CaseSensitiveForms ,
ContextualLigatures ,
CapitalSpacing ,
ContextualSwash ,
CursivePositioning ,
DiscretionaryLigatures ,
ExpertForms ,
Fractions ,
FullWidth ,
HalfForms ,
HalantForms ,
AlternateHalfWidth ,
HistoricalForms ,
HorizontalKanaAlternates ,
HistoricalLigatures ,
HojoKanjiForms ,
HalfWidth ,
JIS78Forms ,
JIS83Forms ,
JIS90Forms ,
JIS04Forms ,
Kerning ,
StandardLigatures ,
LiningFigures ,
MathematicalGreek ,
AlternateAnnotationForms ,
NLCKanjiForms ,
OldStyleFigures ,
Ordinals ,
ProportionalAlternateWidth ,
PetiteCapitals ,
ProportionalFigures ,
ProportionalWidths ,
QuarterWidths ,
RubyNotationForms ,
StylisticAlternates ,
ScientificInferiors ,
SmallCapitals ,
SimplifiedForms ,
StylisticSet1 ,
StylisticSet2 ,
StylisticSet3 ,
StylisticSet4 ,
StylisticSet5 ,
StylisticSet6 ,
StylisticSet7 ,
StylisticSet8 ,
StylisticSet9 ,
StylisticSet10 ,
StylisticSet11 ,
StylisticSet12 ,
StylisticSet13 ,
StylisticSet14 ,
StylisticSet15 ,
StylisticSet16 ,
StylisticSet17 ,
StylisticSet18 ,
StylisticSet19 ,
StylisticSet20 ,
Subscript ,
Superscript ,
Swash ,
Titling ,
TraditionalNameForms ,
TabularFigures ,
TraditionalForms ,
ThirdWidths ,
Unicase ,
SlashedZero ,
Count
}
private const ushort FeatureNotEnabled = 0xffff;
private static DWriteFontFeature[] CreateDWriteFontFeatures(TextRunTypographyProperties textRunTypographyProperties)
{
if (textRunTypographyProperties != null)
{
if (textRunTypographyProperties.CachedFeatureSet != null)
{
return textRunTypographyProperties.CachedFeatureSet;
}
else
{
List fontFeatures = new List((int)CustomOpenTypeFeatures.Count);
if (textRunTypographyProperties.CapitalSpacing)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.CapitalSpacing, 1));
}
if (textRunTypographyProperties.CaseSensitiveForms)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.CaseSensitiveForms, 1));
}
if (textRunTypographyProperties.ContextualAlternates)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.ContextualAlternates, 1));
}
if (textRunTypographyProperties.ContextualLigatures)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.ContextualLigatures, 1));
}
if (textRunTypographyProperties.DiscretionaryLigatures)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.DiscretionaryLigatures, 1));
}
if (textRunTypographyProperties.HistoricalForms)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.HistoricalForms, 1));
}
if (textRunTypographyProperties.HistoricalLigatures)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.HistoricalLigatures, 1));
}
if (textRunTypographyProperties.Kerning)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.Kerning, 1));
}
if (textRunTypographyProperties.MathematicalGreek)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.MathematicalGreek, 1));
}
if (textRunTypographyProperties.SlashedZero)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.SlashedZero, 1));
}
if (textRunTypographyProperties.StandardLigatures)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.StandardLigatures, 1));
}
if (textRunTypographyProperties.StylisticSet1)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.StylisticSet1, 1));
}
if (textRunTypographyProperties.StylisticSet10)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.StylisticSet10, 1));
}
if (textRunTypographyProperties.StylisticSet11)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.StylisticSet11, 1));
}
if (textRunTypographyProperties.StylisticSet12)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.StylisticSet12, 1));
}
if (textRunTypographyProperties.StylisticSet13)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.StylisticSet13, 1));
}
if (textRunTypographyProperties.StylisticSet14)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.StylisticSet14, 1));
}
if (textRunTypographyProperties.StylisticSet15)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.StylisticSet15, 1));
}
if (textRunTypographyProperties.StylisticSet16)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.StylisticSet16, 1));
}
if (textRunTypographyProperties.StylisticSet17)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.StylisticSet17, 1));
}
if (textRunTypographyProperties.StylisticSet18)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.StylisticSet18, 1));
}
if (textRunTypographyProperties.StylisticSet19)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.StylisticSet19, 1));
}
if (textRunTypographyProperties.StylisticSet2)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.StylisticSet2, 1));
}
if (textRunTypographyProperties.StylisticSet20)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.StylisticSet20, 1));
}
if (textRunTypographyProperties.StylisticSet3)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.StylisticSet3, 1));
}
if (textRunTypographyProperties.StylisticSet4)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.StylisticSet4, 1));
}
if (textRunTypographyProperties.StylisticSet5)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.StylisticSet5, 1));
}
if (textRunTypographyProperties.StylisticSet6)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.StylisticSet6, 1));
}
if (textRunTypographyProperties.StylisticSet7)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.StylisticSet7, 1));
}
if (textRunTypographyProperties.StylisticSet8)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.StylisticSet8, 1));
}
if (textRunTypographyProperties.StylisticSet9)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.StylisticSet9, 1));
}
if (textRunTypographyProperties.EastAsianExpertForms)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.ExpertForms, 1));
}
if (textRunTypographyProperties.AnnotationAlternates > 0)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.AlternateAnnotationForms, checked((uint)textRunTypographyProperties.AnnotationAlternates)));
}
if (textRunTypographyProperties.ContextualSwashes > 0)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.ContextualSwash, checked((uint)textRunTypographyProperties.ContextualSwashes)));
}
if (textRunTypographyProperties.StylisticAlternates > 0)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.StylisticAlternates, checked((uint)textRunTypographyProperties.StylisticAlternates)));
}
if (textRunTypographyProperties.StandardSwashes > 0)
{
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.Swash, checked((uint)textRunTypographyProperties.StandardSwashes)));
}
switch (textRunTypographyProperties.Capitals)
{
case FontCapitals.AllPetiteCaps: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.PetiteCapitals, 1));
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.PetiteCapitalsFrom----s, 1));
break;
case FontCapitals.AllSmallCaps: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.SmallCapitals, 1));
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.SmallCapitalsFrom----s, 1));
break;
case FontCapitals.PetiteCaps: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.PetiteCapitals, 1));
break;
case FontCapitals.SmallCaps: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.SmallCapitals, 1));
break;
case FontCapitals.Titling: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.Titling, 1));
break;
case FontCapitals.Unicase: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.Unicase, 1));
break;
}
switch (textRunTypographyProperties.EastAsianLanguage)
{
case FontEastAsianLanguage.Simplified: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.SimplifiedForms, 1));
break;
case FontEastAsianLanguage.Traditional: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.TraditionalForms, 1));
break;
case FontEastAsianLanguage.TraditionalNames: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.TraditionalNameForms, 1));
break;
case FontEastAsianLanguage.NlcKanji: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.NLCKanjiForms, 1));
break;
case FontEastAsianLanguage.HojoKanji: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.HojoKanjiForms, 1));
break;
case FontEastAsianLanguage.Jis78: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.JIS78Forms, 1));
break;
case FontEastAsianLanguage.Jis83: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.JIS83Forms, 1));
break;
case FontEastAsianLanguage.Jis90: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.JIS90Forms, 1));
break;
case FontEastAsianLanguage.Jis04: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.JIS04Forms, 1));
break;
}
switch (textRunTypographyProperties.Fraction)
{
case FontFraction.Stacked: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.AlternativeFractions, 1));
break;
case FontFraction.Slashed: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.Fractions, 1));
break;
}
switch (textRunTypographyProperties.NumeralAlignment)
{
case FontNumeralAlignment.Proportional: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.ProportionalFigures, 1));
break;
case FontNumeralAlignment.Tabular: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.TabularFigures, 1));
break;
}
switch (textRunTypographyProperties.NumeralStyle)
{
case FontNumeralStyle.Lining: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.LiningFigures, 1));
break;
case FontNumeralStyle.OldStyle: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.OldStyleFigures, 1));
break;
}
switch (textRunTypographyProperties.Variants)
{
case FontVariants.Inferior: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.ScientificInferiors, 1));
break;
case FontVariants.Ordinal: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.Ordinals, 1));
break;
case FontVariants.Ruby: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.RubyNotationForms, 1));
break;
case FontVariants.Subscript: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.Subscript, 1));
break;
case FontVariants.Superscript: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.Superscript, 1));
break;
}
switch (textRunTypographyProperties.EastAsianWidths)
{
case FontEastAsianWidths.Proportional:
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.ProportionalWidths, 1));
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.ProportionalAlternateWidth, 1));
break;
case FontEastAsianWidths.Full: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.FullWidth, 1));
break;
case FontEastAsianWidths.Half:
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.HalfWidth, 1));
fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.AlternateHalfWidth, 1));
break;
case FontEastAsianWidths.Third: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.ThirdWidths, 1));
break;
case FontEastAsianWidths.Quarter: fontFeatures.Add(new DWriteFontFeature(Text.TextInterface.DWriteFontFeatureTag.QuarterWidths, 1));
break;
}
textRunTypographyProperties.CachedFeatureSet = fontFeatures.ToArray();
return textRunTypographyProperties.CachedFeatureSet;
}
}
return null;
}
///
/// Compile feature set from the linked list of LSRuns.
/// TypographyProperties should be either all null or all not-null.
/// First is used for internal purposes, also can be used by simple clients.
///
///
/// Critical - deals with unsafe int array
///
[SecurityCritical]
internal static unsafe void CompileFeatureSet(
LSRun[] lsruns,
int* pcchRuns,
uint totalLength,
out DWriteFontFeature[][] fontFeatures,
out uint[] fontFeatureRanges
)
{
Debug.Assert(lsruns != null && lsruns.Length > 0 && lsruns[0] != null);
//
// Quick check for null properties
// Run properties should be all null or all not null
//
if (lsruns[0].RunProp.TypographyProperties == null)
{
for (int i = 1; i < lsruns.Length; i++)
{
if (lsruns[i].RunProp.TypographyProperties != null)
{
throw new ArgumentException(SR.Get(SRID.CompileFeatureSet_InvalidTypographyProperties));
}
}
fontFeatures = null;
fontFeatureRanges = null;
return;
}
//End of quick check. We will process custom features now.
fontFeatures = new DWriteFontFeature[lsruns.Length][];
fontFeatureRanges = new uint[lsruns.Length];
for (int i = 0; i < lsruns.Length; i++)
{
TextRunTypographyProperties properties = lsruns[i].RunProp.TypographyProperties;
fontFeatures[i] = CreateDWriteFontFeatures(properties);
fontFeatureRanges[i] = checked((uint)pcchRuns[i]);
}
}
///
/// Compile feature set from the linked list of LSRuns.
/// TypographyProperties should be either all null or all not-null.
/// First is used for internal purposes, also can be used by simple clients.
///
internal static void CompileFeatureSet(
TextRunTypographyProperties textRunTypographyProperties,
uint totalLength,
out DWriteFontFeature[][] fontFeatures,
out uint[] fontFeatureRanges
)
{
//
// Quick check for null properties
// Run properties should be all null or all not null
//
if (textRunTypographyProperties == null)
{
fontFeatures = null;
fontFeatureRanges = null;
}
else
{
// End of quick check. We will process custom features now.
fontFeatures = new DWriteFontFeature[1][];
fontFeatureRanges = new uint[1];
fontFeatures[0] = CreateDWriteFontFeatures(textRunTypographyProperties);
fontFeatureRanges[0] = totalLength;
}
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
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