/// <summary>
/// Writes a Glyphs to the content stream.
/// </summary>
private void WriteGlyphs(Glyphs glyphs)
{
WriteSaveState("begin Glyphs", glyphs.Name);
// Transform also affects clipping and opacity mask
bool transformed = glyphs.RenderTransform != null;
if (transformed)
WriteRenderTransform(glyphs.RenderTransform);
bool clipped = glyphs.Clip != null;
if (clipped)
WriteClip(glyphs.Clip);
if (glyphs.Opacity < 1)
MultiplyOpacity(glyphs.Opacity);
if (glyphs.OpacityMask != null)
WriteOpacityMask(glyphs.OpacityMask);
XForm xform = null;
XImage ximage = null;
RealizeFill(glyphs.Fill, ref xform, ref ximage);
RealizeFont(glyphs);
double x = glyphs.OriginX;
double y = glyphs.OriginY;
//switch (format.Alignment)
//{
// case XStringAlignment.Near:
// // nothing to do
// break;
// case XStringAlignment.Center:
// x += (rect.Width - width) / 2;
// break;
// case XStringAlignment.Far:
// x += rect.Width - width;
// break;
//}
PdfFont realizedFont = this.graphicsState.realizedFont;
Debug.Assert(realizedFont != null);
realizedFont.AddChars(glyphs.UnicodeString);
TrueTypeDescriptor descriptor = realizedFont.FontDescriptor.descriptor;
//if (bold && !descriptor.IsBoldFace)
//{
// // TODO: emulate bold by thicker outline
//}
//if (italic && !descriptor.IsBoldFace)
//{
// // TODO: emulate italic by shearing transformation
//}
string s2 = "";
string s = glyphs.UnicodeString;
if (!String.IsNullOrEmpty(s))
{
for (int idx = 0; idx < s.Length; idx++)
{
char ch = s[idx];
int glyphID = 0;
if (descriptor.fontData.cmap.symbol)
{
glyphID = (int)ch + (descriptor.fontData.os2.usFirstCharIndex & 0xFF00);
glyphID = descriptor.CharCodeToGlyphIndex((char)glyphID);
}
else
glyphID = descriptor.CharCodeToGlyphIndex(ch);
s2 += (char)glyphID;
}
}
s = s2;
byte[] bytes = PdfEncoders.RawUnicodeEncoding.GetBytes(s);
bytes = PdfEncoders.FormatStringLiteral(bytes, true, false, true, null);
string text = PdfEncoders.RawEncoding.GetString(bytes);
XPoint pos = new XPoint(x, y);
AdjustTextMatrix(ref pos);
WriteLiteral("{0:0.###} {1:0.###} Td {2} Tj\n", pos.x, pos.y, text);
//PdfEncoders.ToStringLiteral(s, PdfStringEncoding.RawEncoding, null));
WriteRestoreState("end Glyphs", glyphs.Name);
}
// string realizedFontName = String.Empty;
// double realizedFontSize = 0;
public void RealizeFont(Glyphs glyphs)
{
// So far rendering mode 0 only
//RealizeBrush(brush, this.renderer.colorMode); // this.renderer.page.document.Options.ColorMode);
try
{
// Get fixed payload which contains the font manager
FixedPage fpage = glyphs.GetParent<FixedPage>();
if (fpage == null)
{
GetType();
this.realizedFont = new PdfFont(null);
}
FixedPayload payload = fpage.Document.Payload;
// Get the font object.
// Important: font.PdfFont is not yet defined here on the first call
string uriString = glyphs.FontUri;
Font font = payload.GetFont(uriString);
// Get the page local resource name and define font.PdfFont if it is not yet defined
string fontName = writer.GetFontName(font);
this.realizedFont = font.PdfFont;
//if (fontName != this.realizedFontName || this.realizedFontSize != font.Size)
{
//this.writer.WriteLiteral("{0} {1:0.###} Tf\n", fontName, -glyphs.FontRenderingEmSize);
this.writer.WriteLiteral("{0} {1:0.###} Tf\n", fontName, -glyphs.FontRenderingEmSize);
//this.realizedFontName = fontName;
//this.realizedFontSize = font.Size;
}
}
catch (Exception ex)
{
Debug.WriteLine(ex.Message);
}
}
/// <summary>
/// Parses a Glyphs element.
/// </summary>
Glyphs ParseGlyphs()
{
Debug.Assert(this.reader.Name == "Glyphs");
Glyphs glyphs = new Glyphs();
while (MoveToNextAttribute())
{
switch (this.reader.Name)
{
case "BidiLevel":
glyphs.BidiLevel = Int32.Parse(this.reader.Value);
break;
case "CaretStops":
glyphs.CaretStops = this.reader.Value;
break;
case "DeviceFontName":
glyphs.DeviceFontName = this.reader.Value;
break;
case "Fill":
glyphs.Fill = ParseBrush(this.reader.Value);
break;
case "FontRenderingEmSize":
glyphs.FontRenderingEmSize = ParseDouble(this.reader.Value);
break;
case "FontUri":
glyphs.FontUri = this.reader.Value;
break;
case "OriginX":
glyphs.OriginX = ParseDouble(this.reader.Value);
break;
case "OriginY":
glyphs.OriginY = ParseDouble(this.reader.Value);
break;
case "IsSideways":
glyphs.IsSideways = ParseBool(this.reader.Value);
break;
case "Indices":
glyphs.Indices = new GlyphIndices(this.reader.Value);
break;
case "UnicodeString":
glyphs.UnicodeString = this.reader.Value;
break;
case "StyleSimulations":
glyphs.StyleSimulations = ParseEnum<StyleSimulations>(this.reader.Value);
break;
case "RenderTransform":
glyphs.RenderTransform = ParseMatrixTransform(this.reader.Value);
break;
case "Clip":
glyphs.Clip = ParsePathGeometry(this.reader.Value);
break;
case "Opacity":
glyphs.Opacity = ParseDouble(this.reader.Value);
break;
case "Name":
glyphs.Name = this.reader.Value;
break;
case "FixedPage.NavigateUri":
glyphs.FixedPage_NavigateUri = this.reader.Value;
break;
case "xml:lang":
glyphs.lang = this.reader.Value;
break;
case "x:Key":
glyphs.Key = this.reader.Value;
break;
default:
UnexpectedAttribute(this.reader.Name);
break;
}
}
// TODO Glyphs
MoveBeyondThisElement();
return glyphs;
}
/// <summary>
/// Makes the specified font and brush to the current graphics objects.
/// </summary>
void RealizeFont(Glyphs glyphs)
{
if (this.streamMode != StreamMode.Text)
{
this.streamMode = StreamMode.Text;
WriteLiteral("BT\n");
// Text matrix is empty after BT
this.graphicsState.realizedTextPosition = new XPoint();
}
this.graphicsState.RealizeFont(glyphs);
}
private void WriteGlyphs_GlyphIndicesAndDistanceOnly(Glyphs glyphs, string text)
{
// TODO:
}
private void WriteGlyphs_ClusterMapping(Glyphs glyphs, string text)
{
GlyphIndices indices = glyphs.Indices;
int chCount = text.Length;
//int chidx = 0;
int glCont = indices.Count;
int glidx = 0;
bool stop = false;
do
{
GlyphIndices.GlyphMapping mapping = indices[glidx];
// if (mapping.HasClusterCount
}
while (!stop);
}
private void WriteGlyphs_None(Glyphs glyphs, string text)
{
// TODO:
}
private void WriteGlyphs_DistanceOnly(Glyphs glyphs, string text)
{
// TODO:
}
// ...on the way to handle Indices...
private void WriteGlyphs_Indices1(Glyphs glyphs, string text)
{
GlyphIndicesComplexity complexity = glyphs.Indices.Complexity;
complexity = GlyphIndicesComplexity.ClusterMapping;
switch (complexity)
{
case GlyphIndicesComplexity.None:
break;
case GlyphIndicesComplexity.DistanceOnly:
break;
case GlyphIndicesComplexity.GlyphIndicesAndDistanceOnly:
break;
case GlyphIndicesComplexity.ClusterMapping:
WriteGlyphs_ClusterMapping(glyphs, text);
break;
}
}
/// <summary>
/// Parses a Canvas element.
/// </summary>
Canvas ParseCanvas()
{
Debug.Assert(this.reader.Name == "Canvas");
Canvas canvas = new Canvas();
try
{
bool isEmptyElement = this.reader.IsEmptyElement;
while (MoveToNextAttribute())
{
switch (this.reader.Name)
{
case "Name":
canvas.Name = this.reader.Value;
break;
case "RenderTransform":
canvas.RenderTransform = ParseMatrixTransform(this.reader.Value);
break;
case "Clip":
canvas.Clip = ParsePathGeometry(this.reader.Value);
break;
case "Opacity":
canvas.Opacity = ParseDouble(this.reader.Value);
break;
case "OpacityMask":
canvas.OpacityMask = ParseBrush(this.reader.Value);
break;
case "RenderOptions.EdgeMode":
canvas.RenderOptions_EdgeMode = this.reader.Value;
break;
case "FixedPage.NavigateUri":
canvas.FixedPage_NavigateUri = this.reader.Value;
break;
case "AutomationProperties.HelpText":
canvas.AutomationProperties_HelpText = this.reader.Value;
break;
case "AutomationProperties.Name":
canvas.AutomationProperties_Name = this.reader.Value;
break;
case "xml:lang":
canvas.lang = this.reader.Value;
break;
case "xmlns:x":
break;
default:
UnexpectedAttribute(this.reader.Name);
break;
}
}
if (!isEmptyElement)
{
MoveToNextElement();
while (this.reader.IsStartElement())
{
switch (this.reader.Name)
{
case "Canvas.Resources":
MoveToNextElement();
ResourceDictionary rd = new ResourceDictionary();
canvas.Resources = rd;
rd.Parent = canvas;
rd.ResourceParent = ResourceDictionaryStack.Current;
ResourceDictionaryStack.Push(rd);
ParseResourceDictionary(rd);
MoveToNextElement();
break;
case "Canvas.RenderTransform":
MoveToNextElement();
canvas.RenderTransform = ParseMatrixTransform();
MoveToNextElement();
break;
case "Canvas.Clip":
MoveToNextElement();
canvas.Clip = ParsePathGeometry();
break;
case "Canvas.OpacityMask":
MoveToNextElement();
canvas.OpacityMask = ParseBrush();
canvas.OpacityMask.Parent = canvas;
break;
case "Path":
{
PdfSharp.Xps.XpsModel.Path path = ParsePath();
#if DEBUG
if (!String.IsNullOrEmpty(path.Name))
{
Debug.WriteLine("Path: " + path.Name);
}
#endif
canvas.Content.Add(path);
path.Parent = canvas;
}
break;
case "Glyphs":
{
PdfSharp.Xps.XpsModel.Glyphs glyphs = ParseGlyphs();
canvas.Content.Add(glyphs);
glyphs.Parent = canvas;
}
break;
case "Canvas":
{
PdfSharp.Xps.XpsModel.Canvas canvas2 = ParseCanvas();
canvas.Content.Add(canvas2);
canvas2.Parent = canvas;
}
break;
case "mc:AlternateContent":
case "mc:Choice":
MoveToNextElement();
//canvas.Content.Add(ParseCanvas());
break;
default:
Debugger.Break();
break;
}
}
}
MoveToNextElement();
}
finally
{
// If the current ResourceDictionary is from this Canvas, pop it.
if (canvas != null && canvas.Resources != null)
{
if (Object.ReferenceEquals(canvas.Resources, ResourceDictionaryStack.Current))
{
ResourceDictionaryStack.Pop();
}
}
}
return(canvas);
}
/// <summary>
/// This is just a draft to see what to do in detail.
/// </summary>
private void WriteGlyphs_ClusterMapping(Glyphs glyphs)
{
string unicodeString = glyphs.UnicodeString;
#if DEBUG_
if (!String.IsNullOrEmpty(unicodeString))
{
if (unicodeString.StartsWith("abc"))
GetType();
}
#endif
bool boldSimulation = (glyphs.StyleSimulations & StyleSimulations.BoldSimulation) == StyleSimulations.BoldSimulation;
double boldSimulationFactor = 1;
if (boldSimulation)
boldSimulationFactor = 1;
bool RightToLeft = glyphs.BidiLevel % 2 == 1; // TODOWPF: why is this a level?? what means "bidirectional nesting"?
GlyphIndices indices = glyphs.Indices;
if (indices == null)
indices = new GlyphIndices();
int codeIdx = 0;
int codeCount = String.IsNullOrEmpty(unicodeString) ? 0 : unicodeString.Length;
int glyphCount = indices.Count;
int glyphIdx = 0;
bool stop = false;
PdfFont realizedFont = this.graphicsState.realizedFont;
OpenTypeDescriptor descriptor = realizedFont.FontDescriptor.descriptor;
int glyphIndex;
double x = glyphs.OriginX;
double y = glyphs.OriginY;
XPoint pos = new XPoint(x, y); // accumulation may lead to rounding error -> check it!
double uOffset = 0;
double vOffset = 0;
StringBuilder outputText = new StringBuilder();
double accumulatedWidth = 0;
int outputGlyphCount = 0;
bool mustRender = false;
bool hasOffset = false;
do
{
GlyphIndices.GlyphMapping clusterMapping = new GlyphIndices.GlyphMapping(42);
if (glyphIdx < glyphCount)
clusterMapping = indices[glyphIdx];
for (int clusterGlyphIdx = 0; clusterGlyphIdx < clusterMapping.ClusterGlyphCount; clusterGlyphIdx++)
{
GlyphIndices.GlyphMapping mapping = new GlyphIndices.GlyphMapping(42);
if (glyphIdx + clusterGlyphIdx < glyphCount)
mapping = indices[glyphIdx + clusterGlyphIdx];
Debug.Assert(mustRender == false);
// Determine whether to render accumulated glyphs
if (outputGlyphCount > 0 && (hasOffset || mapping.HasAdvanceWidthOrOffset))
{
outputText.Append('>');
WriteLiteral("{0:0.####} {1:0.####} Td {2}Tj\n", pos.x, pos.y, outputText.ToString());
//double width = descriptor.GlyphIndexToPdfWidth(glyphIndex);
//if (!PdfSharp.Internal.DoubleUtil.IsNaN(mapping.AdvanceWidth))
// width = mapping.AdvanceWidth * 10;
//pos = new XPoint(accumulatedWidth + width / 1000 * glyphs.FontRenderingEmSize, 0);
pos = new XPoint(accumulatedWidth, 0);
// reset values
accumulatedWidth = 0;
outputGlyphCount = 0;
outputText.Length = 0;
mustRender = false;
}
mustRender = mapping.HasAdvanceWidth;
//mustRender = true;
// Adjust former uOffset
if (uOffset != 0)
{
pos.x -= uOffset;
uOffset = 0;
mustRender = true;
}
// Adjust position by current former uOffset
if (mapping.HasUOffset)
{
uOffset = mapping.UOffset * glyphs.FontRenderingEmSize / 100;
pos.x += uOffset;
mustRender = true;
hasOffset = true;
}
// Adjust former vOffset
if (vOffset != 0)
{
pos.y += vOffset;
vOffset = 0;
mustRender = true;
}
// Adjust position by current former vOffset
if (mapping.HasVOffset)
{
vOffset = mapping.VOffset * glyphs.FontRenderingEmSize / 100;
pos.y -= vOffset;
mustRender = true;
hasOffset = true;
}
// get index of current glyph
if (mapping.HasGlyphIndex)
glyphIndex = mapping.GlyphIndex;
else
glyphIndex = descriptor.CharCodeToGlyphIndex(unicodeString[codeIdx]);
// add glyph index to the fonts 'used glyph table'
realizedFont.AddGlyphIndices(new string((char)glyphIndex, 1));
#if true
if (outputGlyphCount == 0)
outputText.Append('<');
outputText.AppendFormat("{0:X2}{1:X2}", (byte)(glyphIndex >> 8), (byte)glyphIndex);
#else
byte[] bytes = new byte[2] { (byte)(glyphIndex >> 8), (byte)glyphIndex };
bytes = PdfEncoders.FormatStringLiteral(bytes, true, false, true, null);
string output = PdfEncoders.RawEncoding.GetString(bytes);
#endif
// At the end of the glyph run we must always render
if (!mustRender)
mustRender = codeIdx + clusterMapping.ClusterCodeUnitCount >= codeCount // is it the last code unit cluster
&& glyphIdx + clusterGlyphIdx + 1 >= glyphCount; // is it the last glyph index
//mustRender = true;
if (mustRender)
{
outputText.Append('>');
WriteLiteral("{0:0.####} {1:0.####} Td {2}Tj\n", pos.x, pos.y, outputText.ToString());
double width = descriptor.GlyphIndexToPdfWidth(glyphIndex);
if (!PdfSharp.Internal.DoubleUtil.IsNaN(mapping.AdvanceWidth))
width = mapping.AdvanceWidth * 10;
pos = new XPoint(accumulatedWidth + width * boldSimulationFactor / 1000 * glyphs.FontRenderingEmSize, 0);
// reset values
accumulatedWidth = 0;
outputGlyphCount = 0;
outputText.Length = 0;
mustRender = false;
}
else // deferred rendering
{
// accumulate width
Debug.Assert(DoubleUtil.IsNaN(mapping.AdvanceWidth));
double width = descriptor.GlyphIndexToPdfWidth(glyphIndex);
width = width * boldSimulationFactor / 1000 * glyphs.FontRenderingEmSize;
accumulatedWidth += width;
outputGlyphCount++;
}
}
codeIdx += clusterMapping.ClusterCodeUnitCount;
glyphIdx += clusterMapping.ClusterGlyphCount;
if (codeIdx >= codeCount && glyphIdx >= glyphCount)
stop = true;
}
while (!stop);
}
/// <summary>
/// Writes a Glyphs to the content stream.
/// </summary>
private void WriteGlyphs(Glyphs glyphs)
{
WriteSaveState("begin Glyphs", glyphs.Name);
// Transform also affects clipping and opacity mask
bool transformed = glyphs.RenderTransform != null;
if (transformed)
WriteRenderTransform(glyphs.RenderTransform);
bool clipped = glyphs.Clip != null;
if (clipped)
WriteClip(glyphs.Clip);
if (glyphs.Opacity < 1)
MultiplyOpacity(glyphs.Opacity);
if (glyphs.OpacityMask != null)
WriteOpacityMask(glyphs.OpacityMask);
XMatrix textMatrix = new XMatrix();
textMatrix.TranslatePrepend(glyphs.OriginX, glyphs.OriginY);
glyphs.OriginX = glyphs.OriginY = 0; // HACK: do not change model
double emSize = glyphs.FontRenderingEmSize;
textMatrix.ScalePrepend(glyphs.FontRenderingEmSize);
glyphs.FontRenderingEmSize = 1; // HACK: do not change model
bool boldSimulation = (glyphs.StyleSimulations & StyleSimulations.BoldSimulation) == StyleSimulations.BoldSimulation;
// just a draft...
if (boldSimulation)
{
boldSimulation = true;
// draw black stroke if it is not a solid color brush
XColor color = XColor.FromArgb(0, 0, 0);
if (glyphs.Fill is SolidColorBrush)
{
SolidColorBrush brush = glyphs.Fill as SolidColorBrush;
color = brush.Color;
}
WriteLiteral(String.Format(CultureInfo.InvariantCulture, "{0:0.###} {1:0.###} {2:0.###} RG\n", color.R / 255.0, color.G / 255.0, color.B / 255.0));
WriteLiteral("{0:0.###} w\n", emSize / 50);
}
if ((glyphs.StyleSimulations & StyleSimulations.ItalicSimulation) == StyleSimulations.ItalicSimulation)
{
textMatrix.SkewPrepend(-20, 0);
}
XForm xform = null;
XImage ximage = null;
RealizeFill(glyphs.Fill, ref xform, ref ximage);
RealizeFont(glyphs);
if (boldSimulation)
WriteLiteral("2 Tr\n", 1);
double x = glyphs.OriginX;
double y = glyphs.OriginY;
//switch (format.Alignment)
//{
// case XStringAlignment.Near:
// // nothing to do
// break;
// case XStringAlignment.Center:
// x += (rect.Width - width) / 2;
// break;
// case XStringAlignment.Far:
// x += rect.Width - width;
// break;
//}
PdfFont realizedFont = this.graphicsState.realizedFont;
Debug.Assert(realizedFont != null);
realizedFont.AddChars(glyphs.UnicodeString);
OpenTypeDescriptor descriptor = realizedFont.FontDescriptor.descriptor;
//if (bold && !descriptor.IsBoldFace)
//{
// // TODO: emulate bold by thicker outline
//}
//if (italic && !descriptor.IsBoldFace)
//{
// // TODO: emulate italic by shearing transformation
//}
#if true
string s2 = "";
string s = glyphs.UnicodeString;
if (!String.IsNullOrEmpty(s))
{
int length = s.Length;
for (int idx = 0; idx < length; idx++)
{
char ch = s[idx];
int glyphID = 0;
if (descriptor.fontData.cmap.symbol)
{
glyphID = (int)ch + (descriptor.fontData.os2.usFirstCharIndex & 0xFF00);
glyphID = descriptor.CharCodeToGlyphIndex((char)glyphID);
}
else
glyphID = descriptor.CharCodeToGlyphIndex(ch);
s2 += (char)glyphID;
}
}
s = s2;
#endif
byte[] bytes = PdfEncoders.RawUnicodeEncoding.GetBytes(s);
bytes = PdfEncoders.FormatStringLiteral(bytes, true, false, true, null);
string text = PdfEncoders.RawEncoding.GetString(bytes);
if (glyphs.IsSideways)
{
textMatrix.RotateAtPrepend(-90, new XPoint(x, y));
XPoint pos = new XPoint(x, y);
AdjustTextMatrix(ref pos);
//WriteTextTransform(textMatrix);
WriteLiteral("{0} Tj\n", text);
}
else
{
#if true
//if (glyphs.BidiLevel % 2 == 1)
// WriteLiteral("-1 Tc\n");
if (!textMatrix.IsIdentity)
WriteTextTransform(textMatrix);
WriteGlyphsInternal(glyphs, null);
#else
XPoint pos = new XPoint(x, y);
AdjustTextMatrix(ref pos);
WriteLiteral("{0:0.###} {1:0.###} Td {2} Tj\n", pos.x, pos.y, text);
//PdfEncoders.ToStringLiteral(s, PdfStringEncoding.RawEncoding, null));
#endif
}
WriteRestoreState("end Glyphs", glyphs.Name);
}
// ...on the way to handle Indices...
private void WriteGlyphsInternal(Glyphs glyphs, string text)
{
GlyphIndicesComplexity complexity = GlyphIndicesComplexity.None;
if (glyphs.Indices != null)
complexity = glyphs.Indices.Complexity;
complexity = GlyphIndicesComplexity.ClusterMapping;
switch (complexity)
{
case GlyphIndicesComplexity.None:
break;
case GlyphIndicesComplexity.DistanceOnly:
WriteGlyphs_DistanceOnly(glyphs);
break;
case GlyphIndicesComplexity.GlyphIndicesAndDistanceOnly:
break;
case GlyphIndicesComplexity.ClusterMapping:
WriteGlyphs_ClusterMapping(glyphs);
break;
}
}
