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(); } } }