Right-alignment text in PDFBOX?

Question

I need to draw text in right alignment using PDFBOX (java).

I am currently using ContentStream.drawString to draw text to the pdf. I'm not using monospace font, so the width of characters varies.

Any ideas?

Solution 1

Easy solution!

text_width = (myFont.getStringWidth(myString) / 1000.0f) * fontSize;
contentStream.moveTextPositionByAmount(-text_width, 0);
contentStream.drawString(myString);
contentStream.moveTextPositionByAmount(text_width, 0);

Where myFont = the font you are using, fontSize is the size of the font, and myString is the line of text you want to draw.

Solution 2

I based my answer from this of @mirror31

    float pagewidth = page.getMediaBox().getWidth();
    float text_width = (font.getStringWidth(text) / 1000.0f) * size;
    float x = pagewidth - ((paddingRight * 2) + text_width);

    contentStream.newLineAtOffset(x, 0);
    contentStream.setFont(font, size);
    contentStream.showText(text);
    contentStream.newLineAtOffset(-x, 0);

I hope this can help someone

Comments

[mkl]

For simplicity sake, I assume, this code does not take horizontal scaling, character spacing, and word spacing into account.

[Fadils]

is number_width == text_width ?

[Mirror318]

Yes, sorry that must have been a bug. Basically you get the (physical) length of the string, move the cursor that much back, print the string, move the cursor to the right side again.

[Chad Bingham]

Why divide by 1000?