// ------------------------------------------------------------------
// Constructor.
// ------------------------------------------------------------------
internal ParaEllipsisLineProperties(TextParagraphProperties lp)
{
_lp = lp;
}
/// <summary>
/// Formats a text line.
/// </summary>
/// <param name="textSource">The text source.</param>
/// <param name="firstTextSourceIndex">The first character index to start the text line from.</param>
/// <param name="paragraphWidth">A <see cref="double"/> value that specifies the width of the paragraph that the line fills.</param>
/// <param name="paragraphProperties">A <see cref="TextParagraphProperties"/> value that represents paragraph properties,
/// such as TextWrapping, TextAlignment, or TextStyle.</param>
/// <param name="previousLineBreak">A <see cref="TextLineBreak"/> value that specifies the text formatter state,
/// in terms of where the previous line in the paragraph was broken by the text formatting process.</param>
/// <returns>The formatted line.</returns>
public abstract TextLine FormatLine(ITextSource textSource, int firstTextSourceIndex, double paragraphWidth,
TextParagraphProperties paragraphProperties, TextLineBreak?previousLineBreak = null);
public TextLine FormatLine(TextSource textSource, int firstCharIndex, double paragraphWidth, TextParagraphProperties paragraphProperties, TextLineBreak previousLineBreak)
{
var runs = new List <Tuple <TextRun, GlyphRun, int, double> >();
int index = firstCharIndex;
double x = paragraphProperties.Indent, height = 0, baseline = 0;
double trailWhitespaceWidth = 0;
while (true)
{
var run = textSource.GetTextRun(index);
var textProps = run.Properties ?? paragraphProperties.DefaultTextRunProperties;
var fontSize = textProps.FontRenderingEmSize;
var len = run.Length;
if (textProps != null)
{
height = Math.Max(height, (int)(textProps.Typeface.FontFamily.LineSpacing * fontSize));
baseline = Math.Max(baseline, (int)(textProps.Typeface.FontFamily.Baseline * fontSize));
}
if (run is TextEndOfLine || run == null)
{
index += len;
runs.Add(Tuple.Create(run, (GlyphRun)null, 0, 0.0));
break;
}
else if (run is TextCharacters)
{
var chrs = (TextCharacters)run;
var charBuf = getCharBuf(chrs.CharacterBufferReference);
var charOffset = getCharOffset(chrs.CharacterBufferReference);
GlyphTypeface gl;
if (!textProps.Typeface.TryGetGlyphTypeface(out gl))
{
throw new Exception("GlyphTypeface does not exists for font '" + textProps.Typeface.FontFamily + "'.");
}
ushort[] glyphIndexes = new ushort[len];
double[] advanceWidths = new double[len];
double totalWidth = 0;
int trailWhitespace = 0;
trailWhitespaceWidth = 0;
for (int n = 0; n < len; n++)
{
var c = charBuf[charOffset + n];
ushort glyphIndex;
double width;
if (c == '\t')
{
glyphIndex = gl.CharacterToGlyphMap[' '];
width = paragraphProperties.DefaultIncrementalTab - x % paragraphProperties.DefaultIncrementalTab;
}
else
{
if (!gl.CharacterToGlyphMap.TryGetValue(c, out glyphIndex))
{
glyphIndex = gl.CharacterToGlyphMap['?'];
}
width = gl.AdvanceWidths[glyphIndex] * fontSize;
}
glyphIndexes[n] = glyphIndex;
advanceWidths[n] = width;
if (char.IsWhiteSpace(c))
{
trailWhitespace++;
trailWhitespaceWidth += width;
}
else
{
totalWidth += trailWhitespaceWidth + width;
trailWhitespaceWidth = 0;
trailWhitespace = 0;
}
}
var origin = new Point(x, 0);
var glyphRun = new GlyphRun(
gl, 0, false, fontSize, glyphIndexes, origin, advanceWidths,
null, null, null, null, null, null);
runs.Add(Tuple.Create(run, glyphRun, trailWhitespace, trailWhitespaceWidth));
x += totalWidth + trailWhitespaceWidth;
index += len;
}
else if (run is TextEmbeddedObject)
{
var obj = (TextEmbeddedObject)run;
var metrics = obj.Format(paragraphWidth - x);
runs.Add(Tuple.Create(run, (GlyphRun)null, 0, metrics.Width));
height = Math.Max(height, obj.Format(paragraphWidth - x).Height);
x += metrics.Width;
index += len;
}
}
return(new GlyphRunLine {
entries = runs.ToArray(),
baseline = baseline,
width = x - trailWhitespaceWidth,
height = height,
mode = mode
});
}
internal TextMarkerSource(
TextParagraphProperties textParagraphProperties,
TextMarkerStyle markerStyle,
int autoNumberingIndex
)
{
Debug.Assert(markerStyle != TextMarkerStyle.None);
_textParagraphProperties = textParagraphProperties;
TextRunProperties defaultRunProperties = _textParagraphProperties.DefaultTextRunProperties;
PixelsPerDip = defaultRunProperties.PixelsPerDip;
string symbolString = null;
if (IsKnownSymbolMarkerStyle(markerStyle))
{
switch (markerStyle)
{
case TextMarkerStyle.Disc:
symbolString = "\x9f"; break;
case TextMarkerStyle.Circle:
symbolString = "\xa1"; break;
case TextMarkerStyle.Square:
symbolString = "\x71"; break;
case TextMarkerStyle.Box:
symbolString = "\xa7"; break;
}
Typeface defaultTypeface = defaultRunProperties.Typeface;
// recreate a new marker run properties based on symbol typeface e.g. Wingding
_textRunProperties = new GenericTextRunProperties(
new Typeface(
new FontFamily("Wingdings"),
defaultTypeface.Style,
defaultTypeface.Weight,
defaultTypeface.Stretch
),
defaultRunProperties.FontRenderingEmSize,
defaultRunProperties.FontHintingEmSize,
PixelsPerDip,
defaultRunProperties.TextDecorations,
defaultRunProperties.ForegroundBrush,
defaultRunProperties.BackgroundBrush,
defaultRunProperties.BaselineAlignment,
CultureMapper.GetSpecificCulture(defaultRunProperties.CultureInfo),
null // default number substitution for culture
);
}
else if (IsKnownIndexMarkerStyle(markerStyle))
{
// Internal client code should have already validated this.
Debug.Assert(autoNumberingIndex > 0);
_textRunProperties = defaultRunProperties;
int counter = autoNumberingIndex;
switch (markerStyle)
{
case TextMarkerStyle.Decimal:
_characterArray = ConvertNumberToString(counter, false, DecimalNumerics);
break;
case TextMarkerStyle.LowerLatin:
_characterArray = ConvertNumberToString(counter, true, LowerLatinNumerics);
break;
case TextMarkerStyle.UpperLatin:
_characterArray = ConvertNumberToString(counter, true, UpperLatinNumerics);
break;
case TextMarkerStyle.LowerRoman:
symbolString = ConvertNumberToRomanString(counter, false);
break;
case TextMarkerStyle.UpperRoman:
symbolString = ConvertNumberToRomanString(counter, true);
break;
}
}
else
{
Debug.Assert(false, "Invalid marker style");
}
if (symbolString != null)
{
_characterArray = symbolString.ToCharArray();
}
Debug.Assert(_characterArray != null);
}
/// <summary>
/// Verify all text formatting arguments
/// </summary>
private void VerifyTextFormattingArguments(
TextSource textSource,
int firstCharIndex,
double paragraphWidth,
TextParagraphProperties paragraphProperties,
TextRunCache textRunCache
)
{
if (textSource == null)
{
throw new ArgumentNullException("textSource");
}
if (textRunCache == null)
{
throw new ArgumentNullException("textRunCache");
}
if (paragraphProperties == null)
{
throw new ArgumentNullException("paragraphProperties");
}
if (paragraphProperties.DefaultTextRunProperties == null)
{
throw new ArgumentNullException("paragraphProperties.DefaultTextRunProperties");
}
if (paragraphProperties.DefaultTextRunProperties.Typeface == null)
{
throw new ArgumentNullException("paragraphProperties.DefaultTextRunProperties.Typeface");
}
if (DoubleUtil.IsNaN(paragraphWidth))
{
throw new ArgumentOutOfRangeException("paragraphWidth", SR.Get(SRID.ParameterValueCannotBeNaN));
}
if (double.IsInfinity(paragraphWidth))
{
throw new ArgumentOutOfRangeException("paragraphWidth", SR.Get(SRID.ParameterValueCannotBeInfinity));
}
if (paragraphWidth < 0 ||
paragraphWidth > Constants.RealInfiniteWidth)
{
throw new ArgumentOutOfRangeException("paragraphWidth", SR.Get(SRID.ParameterMustBeBetween, 0, Constants.RealInfiniteWidth));
}
double realMaxFontRenderingEmSize = Constants.RealInfiniteWidth / Constants.GreatestMutiplierOfEm;
if (paragraphProperties.DefaultTextRunProperties.FontRenderingEmSize < 0 ||
paragraphProperties.DefaultTextRunProperties.FontRenderingEmSize > realMaxFontRenderingEmSize)
{
throw new ArgumentOutOfRangeException("paragraphProperties.DefaultTextRunProperties.FontRenderingEmSize", SR.Get(SRID.ParameterMustBeBetween, 0, realMaxFontRenderingEmSize));
}
if (paragraphProperties.Indent > Constants.RealInfiniteWidth)
{
throw new ArgumentOutOfRangeException("paragraphProperties.Indent", SR.Get(SRID.ParameterCannotBeGreaterThan, Constants.RealInfiniteWidth));
}
if (paragraphProperties.LineHeight > Constants.RealInfiniteWidth)
{
throw new ArgumentOutOfRangeException("paragraphProperties.LineHeight", SR.Get(SRID.ParameterCannotBeGreaterThan, Constants.RealInfiniteWidth));
}
if (paragraphProperties.DefaultIncrementalTab < 0 ||
paragraphProperties.DefaultIncrementalTab > Constants.RealInfiniteWidth)
{
throw new ArgumentOutOfRangeException("paragraphProperties.DefaultIncrementalTab", SR.Get(SRID.ParameterMustBeBetween, 0, Constants.RealInfiniteWidth));
}
}
public TextLine FormatLine(TextSource textSource, int firstCharIndex, double paragraphWidth,
TextParagraphProperties paragraphProperties, TextLineBreak previousLineBreak)
{
return(formatter.FormatLine(textSource, firstCharIndex, paragraphWidth, paragraphProperties, previousLineBreak));
}
// ------------------------------------------------------------------
// GetTextMarkerProperties
// ------------------------------------------------------------------
internal TextMarkerProperties GetTextMarkerProperties(TextParagraphProperties textParaProps)
{
return(new TextSimpleMarkerProperties(_style, _offset, _index, textParaProps));
}
public static void FormatAndDrawLines(TextChange?change,
int textStorePosition,
ICustomTextSource source,
double paragraphWidth0,
Point linePosition,
int lineNo,
TextParagraphProperties genericTextParagraphProperties,
DrawingContext myDc,
Func <InputTuple, ILineInfo2Base?, object?> delegate1,
ILineInfo2Base [] lineInfos,
int liIndex,
int batchLines,
DrawingGroup myGroup0,
object?batchArg, Func <DrawingContext?, DrawingGroup, ILineInfo2Base[], int, bool, object?, bool> batchAction, int?end)
{
TextLineBreak?prev = null;
var myGroup = myGroup0;
var initialLineSet = true;
while (textStorePosition < end.GetValueOrDefault(source.Length))
{
// Debug.WriteLine(Thread.CurrentThread.ManagedThreadId + ": "+ textStorePosition);
var paragraphWidth = paragraphWidth0 - linePosition.X;
if (paragraphWidth < 0)
{
paragraphWidth = 0;
}
var textParagraphProperties = source.GetTextParagraphProperties(textStorePosition);
var pp = textParagraphProperties ?? genericTextParagraphProperties;
InputTuple in1 = new InputTuple(null, linePosition,
source.AsTextSource(), textStorePosition, null,
null, change, lineNo);
var(height, length, _, li, prev1) = DoFormatLine2(source.AsTextSource(),
textStorePosition, paragraphWidth, pp, myDc, linePosition, delegate1, in1, CreateLineInfo, lineNo, prev);
prev = prev1;
// var boundingRect = new Rect(linePosition.X, linePosition.Y, widthWithWs, height);
lineInfos[liIndex++] = li;
linePosition.Y += height;
lineNo++;
// Update the index position in the text store.
textStorePosition += length;
// if (lineNo % (lineCount / 10) == 0)
// progress?.Report(new UpdateProgress(textStorePosition, lineNo, lineCount));
if (lineNo <= 0 || lineNo % batchLines != 0)
{
continue;
}
if (batchAction(myDc, myGroup, lineInfos, liIndex, initialLineSet, batchArg))
{
myGroup = new DrawingGroup();
myDc = myGroup.Open();
}
liIndex = 0;
initialLineSet = false;
}
if (lineNo % batchLines != 0)
{
batchAction(myDc, myGroup, lineInfos, liIndex, initialLineSet, batchArg);
}
// progress?.Report(new UpdateProgress(textStorePosition, lineNo, lineCount));
}
public TextLine FormatLine(TextSource textSource, int firstCharIndex, double paragraphWidth, TextParagraphProperties paragraphProperties)
{
return(TextLineImpl.Create(paragraphProperties, firstCharIndex, (int)paragraphWidth, textSource));
}
// Token: 0x06006866 RID: 26726 RVA: 0x001D6D10 File Offset: 0x001D4F10
internal void Format(Line.FormattingContext ctx, int dcp, int width, int trackWidth, TextParagraphProperties lineProps, TextLineBreak textLineBreak)
{
this._formattingContext = ctx;
this._dcp = dcp;
this._host.Context = this;
this._wrappingWidth = TextDpi.FromTextDpi(width);
this._trackWidth = TextDpi.FromTextDpi(trackWidth);
this._mirror = (lineProps.FlowDirection == FlowDirection.RightToLeft);
this._indent = lineProps.Indent;
try
{
if (ctx.LineFormatLengthTarget == -1)
{
this._line = this._host.TextFormatter.FormatLine(this._host, dcp, this._wrappingWidth, lineProps, textLineBreak, ctx.TextRunCache);
}
else
{
this._line = this._host.TextFormatter.RecreateLine(this._host, dcp, ctx.LineFormatLengthTarget, this._wrappingWidth, lineProps, textLineBreak, ctx.TextRunCache);
}
this._runs = this._line.GetTextRunSpans();
Invariant.Assert(this._runs != null, "Cannot retrieve runs collection.");
if (this._formattingContext.MeasureMode)
{
List <InlineObject> list = new List <InlineObject>(1);
int num = this._dcp;
foreach (TextSpan <TextRun> textSpan in this._runs)
{
TextRun value = textSpan.Value;
if (value is InlineObjectRun)
{
list.Add(new InlineObject(num, ((InlineObjectRun)value).UIElementIsland, (TextParagraph)this._paraClient.Paragraph));
}
else if (value is FloatingRun)
{
if (((FloatingRun)value).Figure)
{
this._hasFigures = true;
}
else
{
this._hasFloaters = true;
}
}
num += textSpan.Length;
}
if (list.Count == 0)
{
list = null;
}
this.TextParagraph.SubmitInlineObjects(dcp, dcp + this.ActualLength, list);
}
}
finally
{
this._host.Context = null;
}
}