A few months ago this message was posted to the list. I have just got around to implementing it in my branch of iText.
The fix seems to work quite well, my question: Is there a reason why this hasn't been integrated into the main Trunk that I should be aware of when using it? -Bill Ensley www.bearprinting.com > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On > Behalf Of John Hellerud > Sent: Monday, April 30, 2007 9:50 AM > To: [email protected] > Subject: [iText-questions] PdfGraphics2D.drawString() > simulating bold, italic or bold-italic fonts. > > All, > > The PdfGraphics2D.drawString() method wasn't simulating bold, > italic or bold-italic when a bold, italic or bold-italic > specific version of the font was not found. > > The PdfGraphics2D.drawGlyphVector() method will produce the > proper output, but it consumes a lot of memory and produces > really large pdf files. > > The following PdfGraphics2D.drawString() method will simulate > bold, italic or bold-italic when needed, and it contains the > code I submitted earlier for horizontally scaled fonts. > > Note: > On my machine the font.getFontName() and font.getName() > values would be different when the java virtual machine was > using a bold, italic or bold-italic version of a font, and > the values were the same when it was simulating bold, italic, > and bold-italic. > > I would prefer if there was some way of determining if itext > doesn't have a bold, italic or bold-italic version of the > font, and use that information to trigger the code to > simulate a bold, italic, or bold-italic font. > > /** > * @see Graphics2D#drawString(String, float, float) */ > public void drawString(String s, float x, float y) { > if (s.length() == 0) > return; > setFillPaint(); > if (onlyShapes) { > > drawGlyphVector(this.font.layoutGlyphVector(getFontRenderContext(), > s.toCharArray(), 0, s.length(), > java.awt.Font.LAYOUT_LEFT_TO_RIGHT), x, y); > // Use the following line to compile in JDK 1.3 > // > drawGlyphVector(this.font.createGlyphVector(getFontRenderConte > xt(), s), x, y); > } > else { > boolean restoreTextRenderingMode = false; > AffineTransform at = getTransform(); > AffineTransform at2 = getTransform(); > at2.translate(x, y); > at2.concatenate(font.getTransform()); > setTransform(at2); > AffineTransform inverse = this.normalizeMatrix(); > AffineTransform flipper = > AffineTransform.getScaleInstance(1,-1); > inverse.concatenate(flipper); > double[] mx = new double[6]; > inverse.getMatrix(mx); > cb.beginText(); > cb.setFontAndSize(baseFont, fontSize); > > // Check if we need to simulate an italic font. > // When there are different fonts for italic, bold, > italic bold > // the font.getName() will be different from the > font.getFontName() > // value. When they are the same value then we are > normally dealing > // with a single font that has been made into an > italic or bold > // font. > if (font.isItalic() && > font.getFontName().equals(font.getName())) { > float angle = > baseFont.getFontDescriptor(baseFont.ITALICANGLE, > 1000); > float angle2 = font.getItalicAngle(); > > // We don't have an italic version of this font so we need > // to set the font angle ourselves to produce an > italic font. > if (angle2 == 0) { > // The JavaVM didn't have an angle setting for making > // the font an italic font so use a default of > // italic angle of 15 degrees. > angle2 = 15.0f; > } else { > // This sign of the angle for Java and PDF seams > // seams to be reversed. > angle2 = -angle2; > } > > if (angle == 0) { > mx[2] = angle2 / 100.0f; > } > } > cb.setTextMatrix((float)mx[0], (float)mx[1], (float)mx[2], > (float)mx[3], (float)mx[4], (float)mx[5]); > > > // Set the horizontal scaling to match the Java font > if needed. > Float hscale = (Float) > font.getAttributes().get(TextAttribute.WIDTH); > hscale = (hscale == null) ? > TextAttribute.WIDTH_REGULAR : hscale; > cb.setHorizontalScaling(100.0f / hscale); > > // Get the weight of the font so we can detect fonts > with a weight > // that makes them bold, but the Font.isBold() value is false. > Float weight = (Float) > font.getAttributes().get(TextAttribute.WEIGHT); > if (weight == null) { > weight = (font.isBold()) ? TextAttribute.WEIGHT_BOLD > : TextAttribute.WEIGHT_REGULAR; > } > > // Check if we need to simulate a bold font. > if ((font.isBold() || weight >= TextAttribute.WEIGHT_SEMIBOLD) > && (font.getFontName().equals(font.getName()))) { > > // Simulate a bold font. > float strokeWidth = font.getSize2D() > * (weight - > TextAttribute.WEIGHT_REGULAR) > / 30f; > > if (strokeWidth != 1) { > cb.setTextRenderingMode(PdfContentByte. > TEXT_RENDER_MODE_FILL_STROKE); > > cb.setLineWidth(strokeWidth); > cb.setColorStroke(getColor()); > restoreTextRenderingMode = true; > } > } > > double width = 0; > if (font.getSize2D() > 0) { > float scale = 1000 / font.getSize2D(); > width = font.deriveFont( > AffineTransform.getScaleInstance(scale, scale)) > .getStringBounds(s, > getFontRenderContext()).getWidth() > / scale; > } > if (s.length() > 1) { > float adv = ((float)width - baseFont.getWidthPoint(s, > fontSize)) > / (s.length() - 1); > cb.setCharacterSpacing(adv); > } > cb.showText(s); > if (s.length() > 1) { > cb.setCharacterSpacing(0); > } > > // Restore the original TextRenderingMode if needed. > if (restoreTextRenderingMode) { > > cb.setTextRenderingMode(PdfContentByte.TEXT_RENDER_MODE_FILL); > } > > cb.endText(); > setTransform(at); > if(underline) > { > // These two are supposed to be taken from the .AFM file > //int UnderlinePosition = -100; > int UnderlineThickness = 50; > // > double d = asPoints((double)UnderlineThickness, > (int)fontSize); > setStroke(new BasicStroke((float)d)); > y = (float)((double)(y) + > asPoints((double)(UnderlineThickness), (int)fontSize)); > Line2D line = new Line2D.Double((double)x, > (double)y, (double)(width+x), (double)y); > draw(line); > } > } > } > > > -- > John Hellerud > > > -------------------------------------------------------------- > ----------- > This SF.net email is sponsored by DB2 Express > Download DB2 Express C - the FREE version of DB2 express and take > control of your XML. No limits. Just data. Click to get it now. > http://sourceforge.net/powerbar/db2/ > _______________________________________________ > iText-questions mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/itext-questions > Buy the iText book: http://itext.ugent.be/itext-in-action/ ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ iText-questions mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/itext-questions Buy the iText book: http://itext.ugent.be/itext-in-action/
