Paulo Soares wrote:
PdfContentByte.saveState() saves everything including the font, matrix,
colors, etc.
Hmm... ok, I get unexpected output (when viewed from Acrobat 7.0.7) if I
don't explicitly reset the PdfContentByte.setFontAndSize() at a point I
expected restoreState() to have reset the font back to what is was before.
My innerMethod function is actually an implementation of SMALL CAPS for
lowercased characters of the passed string, but I have simplified it in
this example.
Code goes something like:
public void outerMethod(PdfContentByte cb, BaseFont font) {
cb.setFontAndSize(font.getBaseFont(), 8);
innerMethod(cb, font.getBaseFont(), PdfContentByte.ALIGN_RIGHT, 8, 6,
"abcDEF", colOneIndentX, thisLineY, 0);
cb.setFontAndSize(font.getBaseFont(), 8); // Restore font info from
calling #innerMethod() this is the call I'm not expecting to need to make
cb.beginText();
// This is the text that which ends up in the wrong place, by around
6pts east when a 6pt/smallSize font got selected inside innerMethod
cb.showTextAligned(PdfContentByte.ALIGN_LEFT, "Some Data",
colTwoIndentX, thisLineY, 0);
cb.endText();
}
public void innerMethod(PdfContentByte cb, BaseFont baseFont, int align,
float bigSize, float smallSize, String s, float x, float y, float a) {
cb.saveState();
cb.beginText();
float fontSize = bigSize;
if(Ctype.islower(s.charAt(0)))
fontSize = smallSize;
float charSpacing = 1.0f;
cb.moveText(x, y); // Simplyfied example of ALIGN_LEFT
cb.setFontAndSize(baseFont, fontSize);
cb.setCharacterSpacing(charSpacing);
cb.showText(s.charAt(0));
cb.endText();
cb.restoreState();
}
Maybe there is somewhere I can attach a test case if anyone is
interested. For now I just make the extra call to cb.setFontAndSize()
after any call to innerMethod().
Adding:
cb.beginText();
cb.endText();
after the first cb.setFontAndSize() also fixes the output to what I
expect. I can't do saveState() after beginText() I get an error/warning
in acrobat.
Maybe a "setfont" isn't called until cb.beginText(), which means the
graphics state is not setup. I'm not sure what iText's goals are
aligning with PDF/PS syntax or being programtically intuitive.
Thanks for your clarification,
Darryl
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