private void DrawTextRun(SvgTextContentElement element, ref Point ctp,
WpfTextRun textRun, double rotate, WpfTextPlacement placement)
{
if (textRun == null || textRun.IsEmpty)
return;
string text = textRun.Text;
double emSize = GetComputedFontSize(element);
FontFamily fontFamily = GetTextFontFamily(element, emSize);
FontStyle fontStyle = GetTextFontStyle(element);
FontWeight fontWeight = GetTextFontWeight(element);
FontStretch fontStretch = GetTextFontStretch(element);
WpfTextStringFormat stringFormat = GetTextStringFormat(element);
// Fix the use of Postscript fonts...
WpfFontFamilyVisitor fontFamilyVisitor = _drawContext.FontFamilyVisitor;
if (!String.IsNullOrEmpty(_actualFontName) && fontFamilyVisitor != null)
{
WpfFontFamilyInfo currentFamily = new WpfFontFamilyInfo(fontFamily, fontWeight,
fontStyle, fontStretch);
WpfFontFamilyInfo familyInfo = fontFamilyVisitor.Visit(_actualFontName,
currentFamily, _drawContext);
if (familyInfo != null && !familyInfo.IsEmpty)
{
fontFamily = familyInfo.Family;
fontWeight = familyInfo.Weight;
fontStyle = familyInfo.Style;
fontStretch = familyInfo.Stretch;
}
}
WpfSvgPaint fillPaint = new WpfSvgPaint(_drawContext, element, "fill");
Brush textBrush = fillPaint.GetBrush();
WpfSvgPaint strokePaint = new WpfSvgPaint(_drawContext, element, "stroke");
Pen textPen = strokePaint.GetPen();
if (textBrush == null && textPen == null)
{
return;
}
else if (textBrush == null)
{
// If here, then the pen is not null, and so the fill cannot be null.
// We set this to transparent for stroke only text path...
textBrush = Brushes.Transparent;
}
TextDecorationCollection textDecors = GetTextDecoration(element);
TextAlignment alignment = stringFormat.Alignment;
string letterSpacing = element.GetAttribute("letter-spacing");
if (String.IsNullOrEmpty(letterSpacing))
{
FormattedText formattedText = new FormattedText(text,
textRun.IsLatin ? _drawContext.EnglishCultureInfo : _drawContext.CultureInfo,
stringFormat.Direction, new Typeface(fontFamily, fontStyle, fontWeight, fontStretch),
emSize, textBrush);
formattedText.TextAlignment = stringFormat.Alignment;
formattedText.Trimming = stringFormat.Trimming;
if (textDecors != null && textDecors.Count != 0)
{
formattedText.SetTextDecorations(textDecors);
}
//float xCorrection = 0;
//if (alignment == TextAlignment.Left)
// xCorrection = emSize * 1f / 6f;
//else if (alignment == TextAlignment.Right)
// xCorrection = -emSize * 1f / 6f;
double yCorrection = formattedText.Baseline;
Point textPoint = new Point(ctp.X, ctp.Y - yCorrection);
RotateTransform rotateAt = new RotateTransform(90, ctp.X, ctp.Y);
_textContext.PushTransform(rotateAt);
_textContext.DrawText(formattedText, textPoint);
//float bboxWidth = (float)formattedText.Width;
double bboxWidth = formattedText.WidthIncludingTrailingWhitespace;
if (alignment == TextAlignment.Center)
bboxWidth /= 2f;
else if (alignment == TextAlignment.Right)
bboxWidth = 0;
//ctp.X += bboxWidth + emSize / 4;
ctp.X += bboxWidth;
if (rotateAt != null)
{
_textContext.Pop();
}
}
else
{
RotateTransform rotateAt = new RotateTransform(90, ctp.X, ctp.Y);
_textContext.PushTransform(rotateAt);
float spacing = Convert.ToSingle(letterSpacing);
for (int i = 0; i < text.Length; i++)
{
FormattedText formattedText = new FormattedText(new string(text[i], 1),
textRun.IsLatin ? _drawContext.EnglishCultureInfo : _drawContext.CultureInfo,
stringFormat.Direction,
new Typeface(fontFamily, fontStyle, fontWeight, fontStretch),
emSize, textBrush);
formattedText.Trimming = stringFormat.Trimming;
formattedText.TextAlignment = stringFormat.Alignment;
if (textDecors != null && textDecors.Count != 0)
{
formattedText.SetTextDecorations(textDecors);
}
//float xCorrection = 0;
//if (alignment == TextAlignment.Left)
// xCorrection = emSize * 1f / 6f;
//else if (alignment == TextAlignment.Right)
// xCorrection = -emSize * 1f / 6f;
double yCorrection = formattedText.Baseline;
Point textPoint = new Point(ctp.X, ctp.Y - yCorrection);
_textContext.DrawText(formattedText, textPoint);
//float bboxWidth = (float)formattedText.Width;
double bboxWidth = formattedText.WidthIncludingTrailingWhitespace;
if (alignment == TextAlignment.Center)
bboxWidth /= 2f;
else if (alignment == TextAlignment.Right)
bboxWidth = 0;
//ctp.X += bboxWidth + emSize / 4 + spacing;
ctp.X += bboxWidth + spacing;
}
if (rotateAt != null)
{
_textContext.Pop();
}
}
}
public override void RenderText(SvgTextContentElement element,
ref Point ctp, string text, double rotate, WpfTextPlacement placement)
{
if (string.IsNullOrWhiteSpace(text))
{
return;
}
int vertOrientation = -1;
int horzOrientation = -1;
string orientationText = element.GetPropertyValue("glyph-orientation-vertical");
if (!string.IsNullOrWhiteSpace(orientationText))
{
double orientationValue = 0;
if (double.TryParse(orientationText, out orientationValue))
{
vertOrientation = (int)orientationValue;
}
}
orientationText = element.GetPropertyValue("glyph-orientation-horizontal");
if (!string.IsNullOrWhiteSpace(orientationText))
{
double orientationValue = 0;
if (double.TryParse(orientationText, out orientationValue))
{
horzOrientation = (int)orientationValue;
}
}
Point startPoint = ctp;
IList <WpfTextRun> textRunList = WpfTextRun.BreakWords(text,
vertOrientation, horzOrientation);
for (int tr = 0; tr < textRunList.Count; tr++)
{
// For unknown reasons, FormattedText will split a text like "-70%" into two parts "-"
// and "70%". We provide a shift to account for the split...
double baselineShiftX = 0;
double baselineShiftY = 0;
WpfTextRun textRun = textRunList[tr];
DrawingGroup verticalGroup = new DrawingGroup();
DrawingContext verticalContext = verticalGroup.Open();
DrawingContext currentContext = _drawContext;
_drawContext = verticalContext;
this.DrawSingleLineText(element, ref ctp, textRun, rotate, placement);
verticalContext.Close();
_drawContext = currentContext;
if (verticalGroup.Children.Count == 1)
{
DrawingGroup textGroup = verticalGroup.Children[0] as DrawingGroup;
if (textGroup != null)
{
verticalGroup = textGroup;
}
}
string runText = textRun.Text;
int charCount = runText.Length;
double totalHeight = 0;
DrawingCollection drawings = verticalGroup.Children;
int itemCount = drawings != null ? drawings.Count : 0;
for (int i = 0; i < itemCount; i++)
{
Drawing textDrawing = drawings[i];
DrawingGroup textGroup = textDrawing as DrawingGroup;
if (vertOrientation == -1)
{
if (textGroup != null)
{
for (int j = 0; j < textGroup.Children.Count; j++)
{
GlyphRunDrawing glyphDrawing = textGroup.Children[j] as GlyphRunDrawing;
if (glyphDrawing != null)
{
if (textRun.IsLatin)
{
GlyphRun glyphRun = glyphDrawing.GlyphRun;
IList <ushort> glyphIndices = glyphRun.GlyphIndices;
IDictionary <ushort, double> allGlyphWeights = glyphRun.GlyphTypeface.AdvanceWidths;
double lastAdvanceWeight =
allGlyphWeights[glyphIndices[glyphIndices.Count - 1]] * glyphRun.FontRenderingEmSize;
totalHeight += glyphRun.ComputeAlignmentBox().Width + lastAdvanceWeight / 2d;
}
else
{
totalHeight += ChangeGlyphOrientation(glyphDrawing,
baselineShiftX, baselineShiftY, false);
}
}
}
}
else
{
GlyphRunDrawing glyphDrawing = textDrawing as GlyphRunDrawing;
if (glyphDrawing != null)
{
if (textRun.IsLatin)
{
GlyphRun glyphRun = glyphDrawing.GlyphRun;
IList <UInt16> glyphIndices = glyphRun.GlyphIndices;
IDictionary <ushort, double> allGlyphWeights = glyphRun.GlyphTypeface.AdvanceWidths;
double lastAdvanceWeight =
allGlyphWeights[glyphIndices[glyphIndices.Count - 1]] * glyphRun.FontRenderingEmSize;
totalHeight += glyphRun.ComputeAlignmentBox().Width + lastAdvanceWeight / 2d;
}
else
{
totalHeight += ChangeGlyphOrientation(glyphDrawing,
baselineShiftX, baselineShiftY, false);
}
}
}
}
else if (vertOrientation == 0)
{
if (textGroup != null)
{
for (int j = 0; j < textGroup.Children.Count; j++)
{
GlyphRunDrawing glyphDrawing = textGroup.Children[j] as GlyphRunDrawing;
if (glyphDrawing != null)
{
baselineShiftX = ChangeGlyphOrientation(glyphDrawing,
baselineShiftX, baselineShiftY, textRun.IsLatin);
totalHeight += baselineShiftX;
}
}
}
else
{
GlyphRunDrawing glyphDrawing = textDrawing as GlyphRunDrawing;
if (textDrawing != null)
{
totalHeight += ChangeGlyphOrientation(glyphDrawing,
baselineShiftX, baselineShiftY, textRun.IsLatin);
}
}
}
else
{
throw new NotImplementedException();
}
}
if (!this.IsMeasuring)
{
_drawContext.DrawDrawing(verticalGroup);
}
if (tr < textRunList.Count)
{
ctp.X = startPoint.X;
ctp.Y = startPoint.Y + totalHeight;
startPoint.Y += totalHeight;
}
}
}
private void DrawTextRun(SvgTextContentElement element, ref Point ctp,
WpfTextRun textRun, double rotate, WpfTextPlacement placement)
{
if (textRun == null || textRun.IsEmpty)
{
return;
}
string text = textRun.Text;
double emSize = GetComputedFontSize(element);
var fontFamilyInfo = GetTextFontFamilyInfo(element);
FontFamily fontFamily = fontFamilyInfo.Family;
FontStyle fontStyle = fontFamilyInfo.Style;
FontWeight fontWeight = fontFamilyInfo.Weight;
FontStretch fontStretch = fontFamilyInfo.Stretch;
WpfTextStringFormat stringFormat = GetTextStringFormat(element);
// Fix the use of Postscript fonts...
WpfFontFamilyVisitor fontFamilyVisitor = _context.FontFamilyVisitor;
if (!string.IsNullOrWhiteSpace(_actualFontName) && fontFamilyVisitor != null)
{
//WpfFontFamilyInfo currentFamily = new WpfFontFamilyInfo(fontFamily, fontWeight,
// fontStyle, fontStretch);
WpfFontFamilyInfo familyInfo = fontFamilyVisitor.Visit(_actualFontName,
fontFamilyInfo, _context);
if (familyInfo != null && !familyInfo.IsEmpty)
{
fontFamily = familyInfo.Family;
fontWeight = familyInfo.Weight;
fontStyle = familyInfo.Style;
fontStretch = familyInfo.Stretch;
}
}
WpfSvgPaint fillPaint = new WpfSvgPaint(_context, element, "fill");
Brush textBrush = fillPaint.GetBrush();
WpfSvgPaint strokePaint = new WpfSvgPaint(_context, element, "stroke");
Pen textPen = strokePaint.GetPen();
if (textBrush == null && textPen == null)
{
return;
}
else if (textBrush == null)
{
// If here, then the pen is not null, and so the fill cannot be null.
// We set this to transparent for stroke only text path...
textBrush = Brushes.Transparent;
}
TextDecorationCollection textDecors = GetTextDecoration(element);
TextAlignment alignment = stringFormat.Alignment;
string letterSpacing = element.GetAttribute("letter-spacing");
if (string.IsNullOrWhiteSpace(letterSpacing))
{
FormattedText formattedText = new FormattedText(text,
textRun.IsLatin ? _context.EnglishCultureInfo : _context.CultureInfo,
stringFormat.Direction, new Typeface(fontFamily, fontStyle, fontWeight, fontStretch),
emSize, textBrush);
formattedText.TextAlignment = stringFormat.Alignment;
formattedText.Trimming = stringFormat.Trimming;
if (textDecors != null && textDecors.Count != 0)
{
formattedText.SetTextDecorations(textDecors);
}
//float xCorrection = 0;
//if (alignment == TextAlignment.Left)
// xCorrection = emSize * 1f / 6f;
//else if (alignment == TextAlignment.Right)
// xCorrection = -emSize * 1f / 6f;
double yCorrection = formattedText.Baseline;
Point textPoint = new Point(ctp.X, ctp.Y - yCorrection);
RotateTransform rotateAt = new RotateTransform(90, ctp.X, ctp.Y);
_drawContext.PushTransform(rotateAt);
_drawContext.DrawText(formattedText, textPoint);
//float bboxWidth = (float)formattedText.Width;
double bboxWidth = formattedText.WidthIncludingTrailingWhitespace;
if (alignment == TextAlignment.Center)
{
bboxWidth /= 2f;
}
else if (alignment == TextAlignment.Right)
{
bboxWidth = 0;
}
//ctp.X += bboxWidth + emSize / 4;
ctp.X += bboxWidth;
if (rotateAt != null)
{
_drawContext.Pop();
}
}
else
{
RotateTransform rotateAt = new RotateTransform(90, ctp.X, ctp.Y);
_drawContext.PushTransform(rotateAt);
float spacing = Convert.ToSingle(letterSpacing);
for (int i = 0; i < text.Length; i++)
{
FormattedText formattedText = new FormattedText(new string(text[i], 1),
textRun.IsLatin ? _context.EnglishCultureInfo : _context.CultureInfo,
stringFormat.Direction,
new Typeface(fontFamily, fontStyle, fontWeight, fontStretch),
emSize, textBrush);
formattedText.Trimming = stringFormat.Trimming;
formattedText.TextAlignment = stringFormat.Alignment;
if (textDecors != null && textDecors.Count != 0)
{
formattedText.SetTextDecorations(textDecors);
}
//float xCorrection = 0;
//if (alignment == TextAlignment.Left)
// xCorrection = emSize * 1f / 6f;
//else if (alignment == TextAlignment.Right)
// xCorrection = -emSize * 1f / 6f;
double yCorrection = formattedText.Baseline;
Point textPoint = new Point(ctp.X, ctp.Y - yCorrection);
_drawContext.DrawText(formattedText, textPoint);
//float bboxWidth = (float)formattedText.Width;
double bboxWidth = formattedText.WidthIncludingTrailingWhitespace;
if (alignment == TextAlignment.Center)
{
bboxWidth /= 2f;
}
else if (alignment == TextAlignment.Right)
{
bboxWidth = 0;
}
//ctp.X += bboxWidth + emSize / 4 + spacing;
ctp.X += bboxWidth + spacing;
}
if (rotateAt != null)
{
_drawContext.Pop();
}
}
}
private void DrawSingleLineText(SvgTextContentElement element, ref Point ctp,
WpfTextRun textRun, double rotate, WpfTextPlacement placement)
{
if (textRun == null || textRun.IsEmpty)
{
return;
}
string text = textRun.Text;
double emSize = GetComputedFontSize(element);
var fontFamilyInfo = GetTextFontFamilyInfo(element);
FontFamily fontFamily = fontFamilyInfo.Family;
FontStyle fontStyle = fontFamilyInfo.Style;
FontWeight fontWeight = fontFamilyInfo.Weight;
FontStretch fontStretch = fontFamilyInfo.Stretch;
WpfTextStringFormat stringFormat = GetTextStringFormat(element);
// Fix the use of Postscript fonts...
WpfFontFamilyVisitor fontFamilyVisitor = _context.FontFamilyVisitor;
if (!string.IsNullOrWhiteSpace(_actualFontName) && fontFamilyVisitor != null)
{
WpfFontFamilyInfo familyInfo = fontFamilyVisitor.Visit(_actualFontName,
fontFamilyInfo, _context);
if (familyInfo != null && !familyInfo.IsEmpty)
{
fontFamily = familyInfo.Family;
fontWeight = familyInfo.Weight;
fontStyle = familyInfo.Style;
fontStretch = familyInfo.Stretch;
}
}
WpfSvgPaint fillPaint = new WpfSvgPaint(_context, element, "fill");
Brush textBrush = fillPaint.GetBrush();
WpfSvgPaint strokePaint = new WpfSvgPaint(_context, element, "stroke");
Pen textPen = strokePaint.GetPen();
if (textBrush == null && textPen == null)
{
return;
}
if (textBrush == null)
{
// If here, then the pen is not null, and so the fill cannot be null.
// We set this to transparent for stroke only text path...
textBrush = Brushes.Transparent;
}
TextDecorationCollection textDecors = GetTextDecoration(element);
TextAlignment alignment = stringFormat.Alignment;
var typeface = new Typeface(fontFamily, fontStyle, fontWeight, fontStretch);
string letterSpacing = element.GetAttribute("letter-spacing");
if (string.IsNullOrWhiteSpace(letterSpacing))
{
#if DOTNET40 || DOTNET45 || DOTNET46
FormattedText formattedText = new FormattedText(text,
textRun.IsLatin ? _context.EnglishCultureInfo : _context.CultureInfo,
stringFormat.Direction, typeface, emSize, textBrush);
#else
FormattedText formattedText = new FormattedText(text,
textRun.IsLatin ? _context.EnglishCultureInfo : _context.CultureInfo,
stringFormat.Direction, typeface, emSize, textBrush, _context.PixelsPerDip);
#endif
if (this.IsMeasuring)
{
this.AddTextWidth(ctp, formattedText.WidthIncludingTrailingWhitespace);
return;
}
// formattedText.TextAlignment = stringFormat.Alignment;
formattedText.TextAlignment = TextAlignment.Left;
formattedText.Trimming = stringFormat.Trimming;
if (textDecors != null && textDecors.Count != 0)
{
formattedText.SetTextDecorations(textDecors);
}
//float xCorrection = 0;
//if (alignment == TextAlignment.Left)
// xCorrection = emSize * 1f / 6f;
//else if (alignment == TextAlignment.Right)
// xCorrection = -emSize * 1f / 6f;
double yCorrection = formattedText.Baseline;
//float yCorrection = 0;
if (textRun.IsLatin && textRun.VerticalOrientation == -1)
{
yCorrection = yCorrection + formattedText.OverhangAfter * 1.5;
}
Point textPoint = new Point(ctp.X, ctp.Y - yCorrection);
var textSize = this.MeasureString(text, emSize, typeface);
//float bboxWidth1 = (float)formattedText.Width;
double bboxWidth = formattedText.WidthIncludingTrailingWhitespace;
TranslateTransform translateAt = null;
RotateTransform rotateAt = new RotateTransform(90, ctp.X, ctp.Y);
if (alignment == TextAlignment.Center)
{
// translateAt = new TranslateTransform(0, -(textSize.Height - textSize.Width/2) / 2);
translateAt = new TranslateTransform(0, -(textSize.Height - yCorrection / 2) / 2);
}
else if (alignment == TextAlignment.Right)
{
// translateAt = new TranslateTransform(0, -(textSize.Height + textSize.Width / 2));
translateAt = new TranslateTransform(0, -(textSize.Height + yCorrection / 2));
}
if (translateAt != null)
{
TransformGroup group = new TransformGroup();
group.Children.Add(rotateAt);
group.Children.Add(translateAt);
_drawContext.PushTransform(group);
}
else
{
_drawContext.PushTransform(rotateAt);
}
_drawContext.DrawText(formattedText, textPoint);
if (alignment == TextAlignment.Center)
{
bboxWidth /= 2f;
}
else if (alignment == TextAlignment.Right)
{
bboxWidth = 0;
}
//ctp.X += bboxWidth + emSize / 4;
ctp.X += bboxWidth;
//if (translateAt != null)
//{
// _textContext.Pop();
//}
if (rotateAt != null)
{
_drawContext.Pop();
}
}
else
{
RotateTransform rotateAt = new RotateTransform(90, ctp.X, ctp.Y);
_drawContext.PushTransform(rotateAt);
double spacing = Convert.ToDouble(letterSpacing);
for (int i = 0; i < text.Length; i++)
{
#if DOTNET40 || DOTNET45 || DOTNET46
FormattedText formattedText = new FormattedText(new string(text[i], 1),
textRun.IsLatin ? _context.EnglishCultureInfo : _context.CultureInfo,
stringFormat.Direction, typeface, emSize, textBrush);
#else
FormattedText formattedText = new FormattedText(new string(text[i], 1),
textRun.IsLatin ? _context.EnglishCultureInfo : _context.CultureInfo,
stringFormat.Direction, typeface, emSize, textBrush, _context.PixelsPerDip);
#endif
if (this.IsMeasuring)
{
this.AddTextWidth(ctp, formattedText.WidthIncludingTrailingWhitespace);
continue;
}
formattedText.TextAlignment = stringFormat.Alignment;
formattedText.Trimming = stringFormat.Trimming;
if (textDecors != null && textDecors.Count != 0)
{
formattedText.SetTextDecorations(textDecors);
}
//float xCorrection = 0;
//if (alignment == TextAlignment.Left)
// xCorrection = emSize * 1f / 6f;
//else if (alignment == TextAlignment.Right)
// xCorrection = -emSize * 1f / 6f;
double yCorrection = formattedText.Baseline;
Point textPoint = new Point(ctp.X, ctp.Y - yCorrection);
_drawContext.DrawText(formattedText, textPoint);
//float bboxWidth = (float)formattedText.Width;
double bboxWidth = formattedText.WidthIncludingTrailingWhitespace;
if (alignment == TextAlignment.Center)
{
bboxWidth /= 2f;
}
else if (alignment == TextAlignment.Right)
{
bboxWidth = 0;
}
//ctp.X += bboxWidth + emSize / 4 + spacing;
ctp.X += bboxWidth + spacing;
}
if (rotateAt != null)
{
_drawContext.Pop();
}
}
}
