/**
* add a filled rectangle to the current stream
*
* @param x the x position of left edge in millipoints
* @param y the y position of top edge in millipoints
* @param w the width in millipoints
* @param h the height in millipoints
* @param fill the fill color/gradient
* @param stroke the stroke color/gradient
*/
private void AddRect(int x, int y, int w, int h,
PdfColor stroke,
PdfColor fill)
{
CloseText();
currentStream.DrawAndFillRect(x, y, w, h, stroke, fill);
}
/**
* add a rectangle to the current stream
*
* @param x the x position of left edge in millipoints
* @param y the y position of top edge in millipoints
* @param w the width in millipoints
* @param h the height in millipoints
* @param stroke the stroke color/gradient
*/
private void AddRect(int x, int y, int w, int h, PdfColor stroke)
{
CloseText();
currentStream.Write("ET\nq\n" + stroke.getColorSpaceOut(false)
+ PdfNumber.doubleOut(x / 1000f) + " " + PdfNumber.doubleOut(y / 1000f) + " "
+ PdfNumber.doubleOut(w / 1000f) + " " + PdfNumber.doubleOut(h / 1000f) + " re s\n"
+ "Q\nBT\n");
}
/**
* add a filled rectangle to the current stream
*
* @param x the x position of left edge in millipoints
* @param y the y position of top edge in millipoints
* @param w the width in millipoints
* @param h the height in millipoints
* @param fill the fill color/gradient
*/
private void AddFilledRect(int x, int y, int w, int h,
PdfColor fill)
{
CloseText();
currentStream.Write("ET\nq\n" + fill.getColorSpaceOut(true)
+ PdfNumber.doubleOut(x / 1000f) + " " + PdfNumber.doubleOut(y / 1000f) + " "
+ PdfNumber.doubleOut(w / 1000f) + " " + PdfNumber.doubleOut(h / 1000f) + " re f\n"
+ "Q\nBT\n");
}
/**
* add a line to the current stream
*
* @param x1 the start x location in millipoints
* @param y1 the start y location in millipoints
* @param x2 the end x location in millipoints
* @param y2 the end y location in millipoints
* @param th the thickness in millipoints
* @param rs the rule style
* @param r the red component
* @param g the green component
* @param b the blue component
*/
private void AddLine(int x1, int y1, int x2, int y2, int th, int rs,
PdfColor stroke)
{
CloseText();
currentStream.Write("ET\nq\n" + stroke.getColorSpaceOut(false)
+ SetRuleStylePattern(rs) + PdfNumber.doubleOut(x1 / 1000f) + " "
+ PdfNumber.doubleOut(y1 / 1000f) + " m " + PdfNumber.doubleOut(x2 / 1000f) + " "
+ PdfNumber.doubleOut(y2 / 1000f) + " l " + PdfNumber.doubleOut(th / 1000f) + " w S\n"
+ "Q\nBT\n");
}
void AddLineThrough(int x, int y, int w, int lineH,
int fontAscender,
PdfColor theAreaColor)
{
int yPos = y + fontAscender * 3 / 8;
AddLine(x, yPos, x + w, yPos, lineH / 14,
theAreaColor);
prevLineThroughXEndPos = x + w;
prevLineThroughYEndPos = yPos;
prevLineThroughSize = lineH / 14;
prevLineThroughColor = theAreaColor;
}
void AddOverLine(int x, int y, int w, int lineH,
int fontAscender,
PdfColor theAreaColor)
{
int yPos = y + fontAscender + lineH / 10;
AddLine(x, yPos, x + w, yPos, lineH / 14,
theAreaColor);
prevOverlineXEndPos = x + w;
prevOverlineYEndPos = yPos;
prevOverlineSize = lineH / 14;
prevOverlineColor = theAreaColor;
}
void AddUnderLine(int x, int y, int w, int lineH,
PdfColor theAreaColor)
{
int yPos = y - lineH / 10;
AddLine(x, yPos, x + w, yPos, lineH / 14,
theAreaColor);
// save position for underlining a following InlineSpace
prevUnderlineXEndPos = x + w;
prevUnderlineYEndPos = yPos;
prevUnderlineSize = lineH / 14;
prevUnderlineColor = theAreaColor;
}
public void StopRenderer()
{
fontSetup.AddToResources(new PdfFontCreator(pdfDoc), pdfDoc.getResources());
pdfDoc.outputTrailer();
pdfDoc = null;
pdfResources = null;
currentStream = null;
currentAnnotList = null;
currentPage = null;
idReferences = null;
currentFontName = String.Empty;
currentFill = null;
prevUnderlineColor = null;
prevOverlineColor = null;
prevLineThroughColor = null;
fontSetup = null;
fontInfo = null;
}
private void AddWordLines(WordArea area, int rx, int bl, int size,
PdfColor theAreaColor)
{
if (area.getUnderlined())
{
int yPos = bl - size / 10;
AddLine(rx, yPos, rx + area.getContentWidth(), yPos, size / 14,
theAreaColor);
// save position for underlining a following InlineSpace
prevUnderlineXEndPos = rx + area.getContentWidth();
prevUnderlineYEndPos = yPos;
prevUnderlineSize = size / 14;
prevUnderlineColor = theAreaColor;
}
if (area.getOverlined())
{
int yPos = bl + area.GetFontState().Ascender + size / 10;
AddLine(rx, yPos, rx + area.getContentWidth(), yPos, size / 14,
theAreaColor);
prevOverlineXEndPos = rx + area.getContentWidth();
prevOverlineYEndPos = yPos;
prevOverlineSize = size / 14;
prevOverlineColor = theAreaColor;
}
if (area.getLineThrough())
{
int yPos = bl + area.GetFontState().Ascender * 3 / 8;
AddLine(rx, yPos, rx + area.getContentWidth(), yPos, size / 14,
theAreaColor);
prevLineThroughXEndPos = rx + area.getContentWidth();
prevLineThroughYEndPos = yPos;
prevLineThroughSize = size / 14;
prevLineThroughColor = theAreaColor;
}
}
/**
* render inline area to PDF
*
* @param area inline area to render
*/
public void RenderWordArea(WordArea area)
{
FontState fontState = area.GetFontState();
String name = fontState.FontName;
int size = fontState.FontSize;
// This assumes that *all* CIDFonts use a /ToUnicode mapping
Font font = (Font)fontState.FontInfo.GetFontByName(name);
if ((!name.Equals(this.currentFontName)) ||
(size != this.currentFontSize))
{
CloseText();
this.currentFontName = name;
this.currentFontSize = size;
currentStream.SetFont(name, size);
}
// Do letter spacing (must be outside of [...] TJ]
float letterspacing = ((float)fontState.LetterSpacing) / 1000f;
if (letterspacing != this.currentLetterSpacing)
{
this.currentLetterSpacing = letterspacing;
CloseText(); //?
currentStream.SetLetterSpacing(letterspacing);
}
//--------------------------------------------
PdfColor?a_color = this.currentFill;
PdfColor areaObj_color = area.GetColor();
if (a_color == null || !areaObj_color.IsEq(a_color.Value))
{
//change area color
a_color = areaObj_color;
CloseText(); //?
this.currentFill = a_color;
currentStream.SetFontColor(a_color.Value);
}
//--------------------------------------------
int rx = this.currentXPosition;
int bl = this.currentYPosition;
int areaContentW = area.getContentWidth();
if (area.getUnderlined())
{
AddUnderLine(rx, bl, areaContentW, size, a_color.Value);
}
if (area.getOverlined())
{
AddOverLine(rx, bl, areaContentW, size, fontState.Ascender, a_color.Value);
}
if (area.getLineThrough())
{
AddLineThrough(rx, bl, areaContentW, size, fontState.Ascender, a_color.Value);
}
//--------------------------------------------
_textPrinter.Reset(fontState, options != null && options.Kerning);
if (!textOpen || bl != prevWordY)
{
CloseText();
//set text matrix
_textPrinter.SetTextPos(rx, bl);
//pdf.Append("1 0 0 1 " + PdfNumber.doubleOut(rx / 1000f) +
// " " + PdfNumber.doubleOut(bl / 1000f) + " Tm [" + startText);
prevWordY = bl;
textOpen = true; //***
}
else
{
// express the space between words in thousandths of an em
int space = prevWordX - rx + prevWordWidth;
float emDiff = (float)space / (float)currentFontSize * 1000f;
// this prevents a problem in Acrobat Reader where large
// numbers cause text to disappear or default to a limit
if (emDiff < -33000)
{
CloseText();
_textPrinter.SetTextPos(rx, bl);
//pdf.Append("1 0 0 1 " + PdfNumber.doubleOut(rx / 1000f) +
// " " + PdfNumber.doubleOut(bl / 1000f) + " Tm [" + startText);
textOpen = true;//***
}
else
{
_textPrinter.SetEmDiff(emDiff);
//pdf.Append(PdfNumber.doubleOut(emDiff));
//pdf.Append(" ");
//pdf.Append(startText);
}
}
prevWordWidth = areaContentW;
prevWordX = rx;
string s = area.GetTextContent();
if (area is PageNumberInlineArea)
{
//need to resolve to page number
s = idReferences.getPageNumber(s);
}
_textPrinter.WriteText(s);
//-------
_textPrinter.PrintContentTo(currentStream);
//-------
this.currentXPosition += area.getContentWidth();
}
/**
* add a filled rectangle to the current stream
*
* @param x the x position of left edge in millipoints
* @param y the y position of top edge in millipoints
* @param w the width in millipoints
* @param h the height in millipoints
* @param fill the fill color/gradient
*/
private void AddFilledRect(int x, int y, int w, int h,
PdfColor fill)
{
CloseText();
currentStream.FillRect(x, y, w, h, fill);
}
/**
* add a rectangle to the current stream
*
* @param x the x position of left edge in millipoints
* @param y the y position of top edge in millipoints
* @param w the width in millipoints
* @param h the height in millipoints
* @param stroke the stroke color/gradient
*/
private void AddRect(int x, int y, int w, int h, PdfColor stroke)
{
CloseText();
currentStream.DrawRect(x, y, w, h, stroke);
}
/**
* add a line to the current stream
*
* @param x1 the start x location in millipoints
* @param y1 the start y location in millipoints
* @param x2 the end x location in millipoints
* @param y2 the end y location in millipoints
* @param th the thickness in millipoints
* @param rs the rule style
* @param r the red component
* @param g the green component
* @param b the blue component
*/
private void AddLine(int x1, int y1, int x2, int y2, int th, RuleStyle rs,
PdfColor stroke)
{
CloseText();
currentStream.DrawLine(x1, y1, x2, y2, th, rs, stroke);
}
/**
* render page into PDF
*
* @param page page to render
*/
public void RenderPage(Page page)
{
BodyAreaContainer body;
AreaContainer before, after, start, end;
currentStream = this.pdfDoc.makeContentStream();
body = page.getBody();
before = page.getBefore();
after = page.getAfter();
start = page.getStart();
end = page.getEnd();
this.currentFontName = "";
this.currentFontSize = 0;
this.currentLetterSpacing = Single.NaN;
currentStream.Write("BT\n");
RenderBodyAreaContainer(body);
if (before != null)
{
RenderAreaContainer(before);
}
if (after != null)
{
RenderAreaContainer(after);
}
if (start != null)
{
RenderAreaContainer(start);
}
if (end != null)
{
RenderAreaContainer(end);
}
CloseText();
// Bug fix for issue 1823
this.currentLetterSpacing = Single.NaN;
float w = page.getWidth();
float h = page.GetHeight();
currentStream.Write("ET\n");
currentPage = this.pdfDoc.makePage(
this.pdfResources, currentStream,
Convert.ToInt32(Math.Round(w / 1000)),
Convert.ToInt32(Math.Round(h / 1000)), page);
if (page.hasLinks() || currentAnnotList != null)
{
if (currentAnnotList == null)
{
currentAnnotList = this.pdfDoc.makeAnnotList();
}
currentPage.SetAnnotList(currentAnnotList);
ArrayList lsets = page.getLinkSets();
foreach (LinkSet linkSet in lsets)
{
linkSet.align();
String dest = linkSet.getDest();
int linkType = linkSet.getLinkType();
ArrayList rsets = linkSet.getRects();
foreach (LinkedRectangle lrect in rsets)
{
currentAnnotList.Add(this.pdfDoc.makeLink(lrect.getRectangle(),
dest, linkType).GetReference());
}
}
currentAnnotList = null;
}
else
{
// just to be on the safe side
currentAnnotList = null;
}
// ensures that color is properly reset for blocks that carry over pages
this.currentFill = null;
}
/**
* render inline area to PDF
*
* @param area inline area to render
*/
public void RenderWordArea(WordArea area)
{
// TODO: I don't understand why we are locking the private member
// _wordAreaPDF. Maybe this string buffer was originally static? (MG)
lock (_wordAreaPDF)
{
StringBuilder pdf = _wordAreaPDF;
pdf.Length = 0;
GdiKerningPairs kerning = null;
bool kerningAvailable = false;
// If no options are supplied, by default we do not enable kerning
if (options != null && options.Kerning)
{
kerning = area.GetFontState().Kerning;
if (kerning != null && (kerning.Count > 0))
{
kerningAvailable = true;
}
}
String name = area.GetFontState().FontName;
int size = area.GetFontState().FontSize;
// This assumes that *all* CIDFonts use a /ToUnicode mapping
Font font = (Font)area.GetFontState().FontInfo.GetFontByName(name);
bool useMultiByte = font.MultiByteFont;
string startText = useMultiByte ? "<" : "(";
string endText = useMultiByte ? "> " : ") ";
if ((!name.Equals(this.currentFontName)) || (size != this.currentFontSize))
{
CloseText();
this.currentFontName = name;
this.currentFontSize = size;
pdf = pdf.Append("/" + name + " " +
PdfNumber.doubleOut(size / 1000f) + " Tf\n");
}
// Do letter spacing (must be outside of [...] TJ]
float letterspacing = ((float)area.GetFontState().LetterSpacing) / 1000f;
if (letterspacing != this.currentLetterSpacing)
{
this.currentLetterSpacing = letterspacing;
CloseText();
pdf.Append(PdfNumber.doubleOut(letterspacing));
pdf.Append(" Tc\n");
}
PdfColor areaColor = this.currentFill;
if (areaColor == null || areaColor.getRed() != (double)area.getRed() ||
areaColor.getGreen() != (double)area.getGreen() ||
areaColor.getBlue() != (double)area.getBlue())
{
areaColor = new PdfColor((double)area.getRed(),
(double)area.getGreen(),
(double)area.getBlue());
CloseText();
this.currentFill = areaColor;
pdf.Append(this.currentFill.getColorSpaceOut(true));
}
int rx = this.currentXPosition;
int bl = this.currentYPosition;
AddWordLines(area, rx, bl, size, areaColor);
if (!textOpen || bl != prevWordY)
{
CloseText();
pdf.Append("1 0 0 1 " + PdfNumber.doubleOut(rx / 1000f) +
" " + PdfNumber.doubleOut(bl / 1000f) + " Tm [" + startText);
prevWordY = bl;
textOpen = true;
}
else
{
// express the space between words in thousandths of an em
int space = prevWordX - rx + prevWordWidth;
float emDiff = (float)space / (float)currentFontSize * 1000f;
// this prevents a problem in Acrobat Reader where large
// numbers cause text to disappear or default to a limit
if (emDiff < -33000)
{
CloseText();
pdf.Append("1 0 0 1 " + PdfNumber.doubleOut(rx / 1000f) +
" " + PdfNumber.doubleOut(bl / 1000f) + " Tm [" + startText);
textOpen = true;
}
else
{
pdf.Append(PdfNumber.doubleOut(emDiff));
pdf.Append(" ");
pdf.Append(startText);
}
}
prevWordWidth = area.getContentWidth();
prevWordX = rx;
string s;
if (area.getPageNumberID() != null)
{
// This text is a page number, so resolve it
s = idReferences.getPageNumber(area.getPageNumberID());
if (s == null)
{
s = String.Empty;
}
}
else
{
s = area.getText();
}
int wordLength = s.Length;
for (int index = 0; index < wordLength; index++)
{
ushort ch = area.GetFontState().MapCharacter(s[index]);
if (!useMultiByte)
{
if (ch > 127)
{
pdf.Append("\\");
pdf.Append(Convert.ToString((int)ch, 8));
}
else
{
switch (ch)
{
case '(':
case ')':
case '\\':
pdf.Append("\\");
break;
}
pdf.Append((char)ch);
}
}
else
{
pdf.Append(GetUnicodeString(ch));
}
if (kerningAvailable && (index + 1) < wordLength)
{
ushort ch2 = area.GetFontState().MapCharacter(s[index + 1]);
AddKerning(pdf, ch, ch2, kerning, startText, endText);
}
}
pdf.Append(endText);
currentStream.Write(pdf.ToString());
this.currentXPosition += area.getContentWidth();
}
}
