private void RenderTextPath(SvgTextContentElement element, WpfTextOnPathDrawing pathDrawing,
string text, Point origin, double rotate, WpfTextPlacement placement)
{
if (string.IsNullOrWhiteSpace(text))
{
return;
}
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 = _context.FontFamilyVisitor;
if (!string.IsNullOrWhiteSpace(_actualFontName) && fontFamilyVisitor != null)
{
WpfFontFamilyInfo currentFamily = new WpfFontFamilyInfo(fontFamily, fontWeight,
fontStyle, fontStretch);
WpfFontFamilyInfo familyInfo = fontFamilyVisitor.Visit(_actualFontName,
currentFamily, _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 pen = strokePaint.GetPen();
TextDecorationCollection textDecors = GetTextDecoration(element);
TextAlignment alignment = stringFormat.Alignment;
pathDrawing.FontSize = emSize;
pathDrawing.FontFamily = fontFamily;
pathDrawing.FontWeight = fontWeight;
pathDrawing.FontStretch = fontStretch;
pathDrawing.Foreground = textBrush;
pathDrawing.AddTextPath(text, origin);
}
/// <summary>
///
/// </summary>
/// <param name="drawingDocument"></param>
protected virtual void BeginProcessing(WpfDrawingDocument drawingDocument = null)
{
if (_wpfSettings == null)
{
return;
}
var visitors = _wpfSettings.Visitors;
WpfLinkVisitor linkVisitor = visitors.LinkVisitor;
if (linkVisitor == null)
{
linkVisitor = new LinkVisitor();
visitors.LinkVisitor = linkVisitor;
}
WpfFontFamilyVisitor fontFamilyVisitor = visitors.FontFamilyVisitor;
if (fontFamilyVisitor == null)
{
fontFamilyVisitor = new FontFamilyVisitor();
visitors.FontFamilyVisitor = fontFamilyVisitor;
}
WpfEmbeddedImageVisitor imageVisitor = visitors.ImageVisitor;
if (imageVisitor == null)
{
imageVisitor = new EmbeddedImageVisitor();
visitors.ImageVisitor = imageVisitor;
}
WpfIDVisitor idVisitor = visitors.IDVisitor;
if (idVisitor != null)
{
visitors.IDVisitor = idVisitor;
}
WpfClassVisitor classVisitor = visitors.ClassVisitor;
if (classVisitor != null)
{
visitors.ClassVisitor = classVisitor;
}
if (_wpfRenderer != null)
{
_wpfRenderer.LinkVisitor = linkVisitor;
_wpfRenderer.ImageVisitor = imageVisitor;
_wpfRenderer.FontFamilyVisitor = fontFamilyVisitor;
_wpfRenderer.BeginRender(drawingDocument);
}
}
private void RenderTextPath(SvgTextContentElement element, WpfPathTextBuilder pathBuilder,
string text, Point origin, double rotate, WpfTextPlacement placement)
{
if (string.IsNullOrWhiteSpace(text))
{
return;
}
WpfSvgPaint fillPaint = new WpfSvgPaint(_context, element, "fill");
WpfSvgPaint strokePaint = new WpfSvgPaint(_context, element, "stroke");
Brush textBrush = fillPaint.GetBrush();
Pen textPen = strokePaint.GetPen();
if (textBrush == null && textPen == null)
{
return;
}
double emSize = GetComputedFontSize(element);
var fontFamilyInfo = GetTextFontFamilyInfo(element);
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)
{
fontFamilyInfo = familyInfo;
}
}
// Create the text builder object defined by the font family information
WpfTextBuilder textBuilder = WpfTextBuilder.Create(fontFamilyInfo, this.TextCulture, emSize);
textBuilder.TextDecorations = GetTextDecoration(element);
textBuilder.TextAlignment = stringFormat.Alignment;
// This is character-by-character placement, text-alignment will distort the view...
textBuilder.TextAlignment = TextAlignment.Left;
// Create the path-run information holder for this render request...
WpfPathTextRun textPathRun = new WpfPathTextRun(element, textBuilder);
// Finally, register the path-run with path builder...
pathBuilder.AddTextRun(textPathRun, text, origin, textBrush, textPen);
}
public override void RenderTextRun(SvgTextContentElement element, ref Point ctp,
string text, double rotate, WpfTextPlacement placement)
{
if (string.IsNullOrWhiteSpace(text))
{
return;
}
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);
if (textDecors == null)
{
SvgTextElement textElement = element.ParentNode as SvgTextElement;
if (textElement != null)
{
textDecors = GetTextDecoration(textElement);
}
}
TextAlignment alignment = stringFormat.Alignment;
bool hasWordSpacing = false;
string wordSpaceText = element.GetAttribute("word-spacing");
double wordSpacing = 0;
if (!string.IsNullOrWhiteSpace(wordSpaceText) &&
double.TryParse(wordSpaceText, out wordSpacing) && !wordSpacing.Equals(0))
{
hasWordSpacing = true;
}
bool hasLetterSpacing = false;
string letterSpaceText = element.GetAttribute("letter-spacing");
double letterSpacing = 0;
if (!string.IsNullOrWhiteSpace(letterSpaceText) &&
double.TryParse(letterSpaceText, out letterSpacing) && !letterSpacing.Equals(0))
{
hasLetterSpacing = true;
}
bool isRotatePosOnly = false;
IList <WpfTextPosition> textPositions = null;
int textPosCount = 0;
if ((placement != null && placement.HasPositions))
{
textPositions = placement.Positions;
textPosCount = textPositions.Count;
isRotatePosOnly = placement.IsRotateOnly;
}
var typeFace = new Typeface(fontFamily, fontStyle, fontWeight, fontStretch);
if (textPositions != null && textPositions.Count != 0)
{
if (textPositions.Count == text.Trim().Length) //TODO: Best way to handle this...
{
text = text.Trim();
}
}
if (hasLetterSpacing || hasWordSpacing || textPositions != null)
{
double spacing = Convert.ToDouble(letterSpacing);
int startSpaces = 0;
for (int i = 0; i < text.Length; i++)
{
if (char.IsWhiteSpace(text[i]))
{
startSpaces++;
}
else
{
break;
}
}
int j = 0;
string inputText = string.Empty;
for (int i = 0; i < text.Length; i++)
{
// Avoid rendering only spaces at the start of text run...
if (i == 0 && startSpaces != 0)
{
inputText = text.Substring(0, startSpaces + 1);
i += startSpaces;
}
else
{
inputText = new string(text[i], 1);
}
FormattedText formattedText = new FormattedText(inputText, _context.CultureInfo,
stringFormat.Direction, typeFace, emSize, textBrush);
if (this.IsMeasuring)
{
this.AddTextWidth(formattedText.WidthIncludingTrailingWhitespace);
continue;
}
formattedText.Trimming = stringFormat.Trimming;
formattedText.TextAlignment = stringFormat.Alignment;
if (textDecors != null && textDecors.Count != 0)
{
formattedText.SetTextDecorations(textDecors);
}
WpfTextPosition?textPosition = null;
if (textPositions != null && j < textPosCount)
{
textPosition = textPositions[j];
}
//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 rotateAngle = (float)rotate;
if (textPosition != null)
{
if (!isRotatePosOnly)
{
Point pt = textPosition.Value.Location;
ctp.X = pt.X;
ctp.Y = pt.Y;
}
rotateAngle = (float)textPosition.Value.Rotation;
}
Point textStart = ctp;
RotateTransform rotateAt = null;
if (!rotateAngle.Equals(0))
{
rotateAt = new RotateTransform(rotateAngle, textStart.X, textStart.Y);
_textContext.PushTransform(rotateAt);
}
Point textPoint = new Point(ctp.X, ctp.Y - yCorrection);
if (textPen != null || _context.TextAsGeometry)
{
Geometry textGeometry = formattedText.BuildGeometry(textPoint);
if (textGeometry != null && !textGeometry.IsEmpty())
{
_textContext.DrawGeometry(textBrush, textPen,
ExtractTextPathGeometry(textGeometry));
this.IsTextPath = true;
}
else
{
_textContext.DrawText(formattedText, textPoint);
}
}
else
{
_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;
if (hasLetterSpacing)
{
ctp.X += bboxWidth + letterSpacing;
}
if (hasWordSpacing && char.IsWhiteSpace(text[i]))
{
if (hasLetterSpacing)
{
ctp.X += wordSpacing;
}
else
{
ctp.X += bboxWidth + wordSpacing;
}
}
else
{
if (!hasLetterSpacing)
{
ctp.X += bboxWidth;
}
}
if (rotateAt != null)
{
_textContext.Pop();
}
j++;
}
}
else
{
FormattedText formattedText = new FormattedText(text, _context.CultureInfo,
stringFormat.Direction, typeFace, emSize, textBrush);
if (this.IsMeasuring)
{
this.AddTextWidth(formattedText.WidthIncludingTrailingWhitespace);
return;
}
if (alignment == TextAlignment.Center && this.TextWidth > 0)
{
alignment = TextAlignment.Left;
}
formattedText.TextAlignment = 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;
float rotateAngle = (float)rotate;
Point textPoint = new Point(ctp.X, ctp.Y - yCorrection);
RotateTransform rotateAt = null;
if (!rotateAngle.Equals(0))
{
rotateAt = new RotateTransform(rotateAngle, ctp.X, ctp.Y);
_textContext.PushTransform(rotateAt);
}
if (textPen != null || _context.TextAsGeometry)
{
Geometry textGeometry = formattedText.BuildGeometry(textPoint);
if (textGeometry != null && !textGeometry.IsEmpty())
{
_textContext.DrawGeometry(textBrush, textPen,
ExtractTextPathGeometry(textGeometry));
this.IsTextPath = true;
}
else
{
_textContext.DrawText(formattedText, textPoint);
}
}
else
{
_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();
}
}
}
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();
}
}
}
public override void RenderSingleLineText(SvgTextContentElement element, ref Point ctp,
string text, double rotate, WpfTextPlacement placement)
{
if (String.IsNullOrEmpty(text))
{
return;
}
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;
bool hasWordSpacing = false;
string wordSpaceText = element.GetAttribute("word-spacing");
double wordSpacing = 0;
if (!String.IsNullOrEmpty(wordSpaceText) &&
Double.TryParse(wordSpaceText, out wordSpacing) && (float)wordSpacing != 0)
{
hasWordSpacing = true;
}
bool hasLetterSpacing = false;
string letterSpaceText = element.GetAttribute("letter-spacing");
double letterSpacing = 0;
if (!String.IsNullOrEmpty(letterSpaceText) &&
Double.TryParse(letterSpaceText, out letterSpacing) && (float)letterSpacing != 0)
{
hasLetterSpacing = true;
}
bool isRotatePosOnly = false;
IList <WpfTextPosition> textPositions = null;
int textPosCount = 0;
if ((placement != null && placement.HasPositions))
{
textPositions = placement.Positions;
textPosCount = textPositions.Count;
isRotatePosOnly = placement.IsRotateOnly;
}
if (hasLetterSpacing || hasWordSpacing || textPositions != null)
{
for (int i = 0; i < text.Length; i++)
{
FormattedText formattedText = new FormattedText(new string(text[i], 1),
_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);
}
WpfTextPosition?textPosition = null;
if (textPositions != null && i < textPosCount)
{
textPosition = textPositions[i];
}
//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 rotateAngle = (float)rotate;
if (textPosition != null)
{
if (!isRotatePosOnly)
{
Point pt = textPosition.Value.Location;
ctp.X = pt.X;
ctp.Y = pt.Y;
}
rotateAngle = (float)textPosition.Value.Rotation;
}
Point textStart = ctp;
RotateTransform rotateAt = null;
if (rotateAngle != 0)
{
rotateAt = new RotateTransform(rotateAngle, textStart.X, textStart.Y);
_textContext.PushTransform(rotateAt);
}
Point textPoint = new Point(textStart.X, textStart.Y - yCorrection);
if (textPen != null || _drawContext.TextAsGeometry)
{
Geometry textGeometry = formattedText.BuildGeometry(textPoint);
if (textGeometry != null && !textGeometry.IsEmpty())
{
_textContext.DrawGeometry(textBrush, textPen,
ExtractTextPathGeometry(textGeometry));
this.IsTextPath = true;
}
else
{
_textContext.DrawText(formattedText, textPoint);
}
}
else
{
_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;
if (hasLetterSpacing)
{
ctp.X += bboxWidth + letterSpacing;
}
if (hasWordSpacing && Char.IsWhiteSpace(text[i]))
{
if (hasLetterSpacing)
{
ctp.X += wordSpacing;
}
else
{
ctp.X += bboxWidth + wordSpacing;
}
}
else
{
if (!hasLetterSpacing)
{
ctp.X += bboxWidth;
}
}
if (rotateAt != null)
{
_textContext.Pop();
}
}
}
else
{
FormattedText formattedText = new FormattedText(text, _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;
float rotateAngle = (float)rotate;
Point textPoint = new Point(ctp.X, ctp.Y - yCorrection);
RotateTransform rotateAt = null;
if (rotateAngle != 0)
{
rotateAt = new RotateTransform(rotateAngle, ctp.X, ctp.Y);
_textContext.PushTransform(rotateAt);
}
if (textPen != null || _drawContext.TextAsGeometry)
{
Geometry textGeometry = formattedText.BuildGeometry(textPoint);
if (textGeometry != null && !textGeometry.IsEmpty())
{
_textContext.DrawGeometry(textBrush, textPen,
ExtractTextPathGeometry(textGeometry));
this.IsTextPath = true;
}
else
{
_textContext.DrawText(formattedText, textPoint);
}
}
else
{
_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();
}
}
}
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();
}
}
}
public override void RenderText(SvgTextContentElement element, ref Point ctp,
string text, double rotate, WpfTextPlacement placement)
{
if (string.IsNullOrWhiteSpace(text))
{
return;
}
double emSize = GetComputedFontSize(element);
var fontFamilyInfo = GetTextFontFamilyInfo(element);
WpfTextStringFormat stringFormat = GetTextStringFormat(element);
if (fontFamilyInfo.FontFamilyType == WpfFontFamilyType.Svg ||
fontFamilyInfo.FontFamilyType == WpfFontFamilyType.Private)
{
WpfTextTuple textInfo = new WpfTextTuple(fontFamilyInfo, emSize, stringFormat, element);
this.RenderText(textInfo, ref ctp, text, rotate, placement);
return;
}
FontFamily fontFamily = fontFamilyInfo.Family;
FontStyle fontStyle = fontFamilyInfo.Style;
FontWeight fontWeight = fontFamilyInfo.Weight;
FontStretch fontStretch = fontFamilyInfo.Stretch;
// 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;
}
bool isForcedPathMode = false;
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;
}
else
{
// WPF gradient fill does not work well on text, use geometry to render it
isForcedPathMode = (fillPaint.FillType == WpfFillType.Gradient);
}
if (textPen != null)
{
textPen.LineJoin = PenLineJoin.Round; // Better for text rendering
isForcedPathMode = true;
}
TextDecorationCollection textDecors = GetTextDecoration(element);
TextAlignment alignment = stringFormat.Alignment;
bool hasWordSpacing = false;
string wordSpaceText = element.GetAttribute("word-spacing");
double wordSpacing = 0;
if (!string.IsNullOrWhiteSpace(wordSpaceText) &&
double.TryParse(wordSpaceText, out wordSpacing) && !wordSpacing.Equals(0))
{
hasWordSpacing = true;
}
bool hasLetterSpacing = false;
string letterSpaceText = element.GetAttribute("letter-spacing");
double letterSpacing = 0;
if (!string.IsNullOrWhiteSpace(letterSpaceText) &&
double.TryParse(letterSpaceText, out letterSpacing) && !letterSpacing.Equals(0))
{
hasLetterSpacing = true;
}
bool isRotatePosOnly = false;
IList <WpfTextPosition> textPositions = null;
int textPosCount = 0;
if ((placement != null && placement.HasPositions))
{
textPositions = placement.Positions;
textPosCount = textPositions.Count;
isRotatePosOnly = placement.IsRotateOnly;
}
var typeFace = new Typeface(fontFamily, fontStyle, fontWeight, fontStretch);
bool isRightToLeft = false;
var xmlLang = _textElement.XmlLang;
if (!string.IsNullOrWhiteSpace(xmlLang))
{
if (string.Equals(xmlLang, "ar", StringComparison.OrdinalIgnoreCase) || // Arabic language
string.Equals(xmlLang, "he", StringComparison.OrdinalIgnoreCase)) // Hebrew language
{
isRightToLeft = true;
}
}
if (hasLetterSpacing || hasWordSpacing || textPositions != null)
{
for (int i = 0; i < text.Length; i++)
{
var nextText = new string(text[i], 1);
FormattedText formattedText = new FormattedText(nextText,
_context.CultureInfo, stringFormat.Direction, typeFace, emSize, textBrush);
// formattedText.FlowDirection = isRightToLeft ? FlowDirection.RightToLeft : FlowDirection.LeftToRight;
formattedText.TextAlignment = stringFormat.Alignment;
formattedText.Trimming = stringFormat.Trimming;
if (textDecors != null && textDecors.Count != 0)
{
formattedText.SetTextDecorations(textDecors);
}
WpfTextPosition?textPosition = null;
if (textPositions != null && i < textPosCount)
{
textPosition = textPositions[i];
}
//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 rotateAngle = (float)rotate;
if (textPosition != null)
{
if (!isRotatePosOnly)
{
Point pt = textPosition.Value.Location;
ctp.X = pt.X;
ctp.Y = pt.Y;
}
rotateAngle = (float)textPosition.Value.Rotation;
}
Point textStart = ctp;
RotateTransform rotateAt = null;
if (!rotateAngle.Equals(0))
{
rotateAt = new RotateTransform(rotateAngle, textStart.X, textStart.Y);
_drawContext.PushTransform(rotateAt);
}
Point textPoint = new Point(textStart.X, textStart.Y - yCorrection);
if (_context.TextAsGeometry || isForcedPathMode)
{
Geometry textGeometry = formattedText.BuildGeometry(textPoint);
if (textGeometry != null && !textGeometry.IsEmpty())
{
_drawContext.DrawGeometry(textBrush, textPen, ExtractTextPathGeometry(textGeometry));
this.IsTextPath = true;
}
else
{
_drawContext.DrawText(formattedText, textPoint);
}
}
else
{
_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;
if (hasLetterSpacing)
{
ctp.X += bboxWidth + letterSpacing;
}
if (hasWordSpacing && char.IsWhiteSpace(text[i]))
{
if (hasLetterSpacing)
{
ctp.X += wordSpacing;
}
else
{
ctp.X += bboxWidth + wordSpacing;
}
}
else
{
if (!hasLetterSpacing)
{
ctp.X += bboxWidth;
}
}
if (rotateAt != null)
{
_drawContext.Pop();
}
}
}
else
{
FormattedText formattedText = new FormattedText(text, _context.CultureInfo,
stringFormat.Direction, typeFace, emSize, textBrush);
formattedText.TextAlignment = stringFormat.Alignment;
formattedText.Trimming = stringFormat.Trimming;
// formattedText.FlowDirection = isRightToLeft ? FlowDirection.RightToLeft : FlowDirection.LeftToRight;
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 rotateAngle = (float)rotate;
Point textPoint = new Point(ctp.X, ctp.Y - yCorrection);
RotateTransform rotateAt = null;
if (!rotateAngle.Equals(0))
{
rotateAt = new RotateTransform(rotateAngle, ctp.X, ctp.Y);
_drawContext.PushTransform(rotateAt);
}
if (_context.TextAsGeometry || isForcedPathMode)
{
Geometry textGeometry = formattedText.BuildGeometry(textPoint);
if (textGeometry != null && !textGeometry.IsEmpty())
{
_drawContext.DrawGeometry(textBrush, textPen,
ExtractTextPathGeometry(textGeometry));
this.IsTextPath = true;
}
else
{
_drawContext.DrawText(formattedText, textPoint);
}
}
else
{
_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();
}
}
}
