// ------------------------------------------------------------------
// Constructor.
//
// PtsContext - Context
// TextParagraphCache - Contained line break
// ------------------------------------------------------------------
internal OptimalBreakSession(TextParagraph textParagraph, TextParaClient textParaClient, TextParagraphCache TextParagraphCache, OptimalTextSource optimalTextSource) : base(textParagraph.PtsContext)
{
_textParagraph = textParagraph;
_textParaClient = textParaClient;
_textParagraphCache = TextParagraphCache;
_optimalTextSource = optimalTextSource;
}
// ------------------------------------------------------------------
// Constructor.
//
// PtsContext - Context
// TextParagraphCache - Contained line break
// ------------------------------------------------------------------
internal OptimalBreakSession(TextParagraph textParagraph, TextParaClient textParaClient, TextParagraphCache TextParagraphCache, OptimalTextSource optimalTextSource) : base(textParagraph.PtsContext)
{
_textParagraph = textParagraph;
_textParaClient = textParaClient;
_textParagraphCache = TextParagraphCache;
_optimalTextSource = optimalTextSource;
}
// Token: 0x06006B23 RID: 27427 RVA: 0x001EED14 File Offset: 0x001ECF14
internal void CreateOptimalBreakSession(TextParaClient textParaClient, int dcpStart, int durTrack, LineBreakRecord lineBreakRecord, out OptimalBreakSession optimalBreakSession, out bool isParagraphJustified)
{
this._textRunCache = new TextRunCache();
TextFormatter textFormatter = base.StructuralCache.TextFormatterHost.TextFormatter;
TextLineBreak previousLineBreak = (lineBreakRecord != null) ? lineBreakRecord.TextLineBreak : null;
OptimalTextSource optimalTextSource = new OptimalTextSource(base.StructuralCache.TextFormatterHost, base.ParagraphStartCharacterPosition, durTrack, textParaClient, this._textRunCache);
base.StructuralCache.TextFormatterHost.Context = optimalTextSource;
TextParagraphCache textParagraphCache = textFormatter.CreateParagraphCache(base.StructuralCache.TextFormatterHost, dcpStart, TextDpi.FromTextDpi(durTrack), this.GetLineProperties(true, dcpStart), previousLineBreak, this._textRunCache);
base.StructuralCache.TextFormatterHost.Context = null;
optimalBreakSession = new OptimalBreakSession(this, textParaClient, textParagraphCache, optimalTextSource);
isParagraphJustified = ((TextAlignment)base.Element.GetValue(Block.TextAlignmentProperty) == TextAlignment.Justify);
}
internal static IList <TextBreakpoint> CreateMultiple(
TextParagraphCache paragraphCache,
int firstCharIndex,
int maxLineWidth,
TextLineBreak previousLineBreak,
IntPtr penaltyRestriction,
out int bestFitIndex
)
{
Invariant.Assert(paragraphCache != null);
// grab full text state from paragraph cache
FullTextState fullText = paragraphCache.FullText;
Invariant.Assert(fullText != null);
FormatSettings settings = fullText.TextStore.Settings;
Invariant.Assert(settings != null);
// update formatting parameters at line start
settings.UpdateSettingsForCurrentLine(
maxLineWidth,
previousLineBreak,
(firstCharIndex == fullText.TextStore.CpFirst)
);
Invariant.Assert(settings.Formatter != null);
// acquiring LS context
TextFormatterContext context = settings.Formatter.AcquireContext(fullText, IntPtr.Zero);
IntPtr previousBreakRecord = IntPtr.Zero;
if (settings.PreviousLineBreak != null)
{
previousBreakRecord = settings.PreviousLineBreak.BreakRecord.Value;
}
// need not consider marker as tab since marker does not affect line metrics and it wasnt drawn.
fullText.SetTabs(context);
LsBreaks lsbreaks = new LsBreaks();
LsErr lserr = context.CreateBreaks(
fullText.GetBreakpointInternalCp(firstCharIndex),
previousBreakRecord,
paragraphCache.Ploparabreak.Value, // para breaking session
penaltyRestriction,
ref lsbreaks,
out bestFitIndex
);
// get the exception in context before it is released
Exception callbackException = context.CallbackException;
// release the context
context.Release();
if (lserr != LsErr.None)
{
if (callbackException != null)
{
// rethrow exception thrown in callbacks
throw callbackException;
}
else
{
// throw with LS error codes
TextFormatterContext.ThrowExceptionFromLsError(SR.Get(SRID.CreateBreaksFailure, lserr), lserr);
}
}
// keep context alive at least till here
GC.KeepAlive(context);
TextBreakpoint[] breakpoints = new TextBreakpoint[lsbreaks.cBreaks];
for (int i = 0; i < lsbreaks.cBreaks; i++)
{
breakpoints[i] = new FullTextBreakpoint(
fullText,
firstCharIndex,
maxLineWidth,
ref lsbreaks,
i // the current break
);
}
return(breakpoints);
}
internal static IList<TextBreakpoint> CreateMultiple(
TextParagraphCache paragraphCache,
int firstCharIndex,
int maxLineWidth,
TextLineBreak previousLineBreak,
IntPtr penaltyRestriction,
out int bestFitIndex
)
{
Invariant.Assert(paragraphCache != null);
// grab full text state from paragraph cache
FullTextState fullText = paragraphCache.FullText;
Invariant.Assert(fullText != null);
FormatSettings settings = fullText.TextStore.Settings;
Invariant.Assert(settings != null);
// update formatting parameters at line start
settings.UpdateSettingsForCurrentLine(
maxLineWidth,
previousLineBreak,
(firstCharIndex == fullText.TextStore.CpFirst)
);
Invariant.Assert(settings.Formatter != null);
// acquiring LS context
TextFormatterContext context = settings.Formatter.AcquireContext(fullText, IntPtr.Zero);
IntPtr previousBreakRecord = IntPtr.Zero;
if (settings.PreviousLineBreak != null)
previousBreakRecord = settings.PreviousLineBreak.BreakRecord.Value;
// need not consider marker as tab since marker does not affect line metrics and it wasnt drawn.
fullText.SetTabs(context);
LsBreaks lsbreaks = new LsBreaks();
LsErr lserr = context.CreateBreaks(
fullText.GetBreakpointInternalCp(firstCharIndex),
previousBreakRecord,
paragraphCache.Ploparabreak.Value, // para breaking session
penaltyRestriction,
ref lsbreaks,
out bestFitIndex
);
// get the exception in context before it is released
Exception callbackException = context.CallbackException;
// release the context
context.Release();
if(lserr != LsErr.None)
{
if(callbackException != null)
{
// rethrow exception thrown in callbacks
throw callbackException;
}
else
{
// throw with LS error codes
TextFormatterContext.ThrowExceptionFromLsError(SR.Get(SRID.CreateBreaksFailure, lserr), lserr);
}
}
// keep context alive at least till here
GC.KeepAlive(context);
TextBreakpoint[] breakpoints = new TextBreakpoint[lsbreaks.cBreaks];
for (int i = 0; i < lsbreaks.cBreaks; i++)
{
breakpoints[i] = new FullTextBreakpoint(
fullText,
firstCharIndex,
maxLineWidth,
ref lsbreaks,
i // the current break
);
}
return breakpoints;
}
// Token: 0x06006B27 RID: 27431 RVA: 0x001EEE9C File Offset: 0x001ED09C
internal IList <TextBreakpoint> FormatLineVariants(TextParaClient textParaClient, TextParagraphCache textParagraphCache, OptimalTextSource optimalTextSource, int dcp, TextLineBreak textLineBreak, uint fswdir, int urStartLine, int durLine, bool allowHyphenation, bool clearOnLeft, bool clearOnRight, bool treatAsFirstInPara, bool treatAsLastInPara, bool suppressTopSpace, IntPtr lineVariantRestriction, out int iLineBestVariant)
{
base.StructuralCache.TextFormatterHost.Context = optimalTextSource;
IList <TextBreakpoint> result = textParagraphCache.FormatBreakpoints(dcp, textLineBreak, lineVariantRestriction, TextDpi.FromTextDpi(durLine), out iLineBestVariant);
base.StructuralCache.TextFormatterHost.Context = null;
return(result);
}
