Simple % bar in a pdf using Ruby

abscond (James Darling) — Thu, 08 Mar 2007 12:01:19 GMT

Will create a bar, filled to the percentage provided, and draw it in a PDF.

Requires PDF Writer, call method after setting up PDF to @pdf



  def generate_pdf_bar(p = 50, x = 10, y = 'center', w = 200, h = 10)

     # adjustments

    if y == 'center'

      y = @pdf.page_height / 2 - h

    else

      y = @pdf.page_height - y - h

    end

    p = w / 100 * p



      # Empty

    @pdf.stroke_color  Color::RGB::Black

    @pdf.rectangle(x, y, w, h).close_stroke



     # Fill

    @pdf.fill_color    Color::RGB::Black

    @pdf.stroke_color  Color::RGB::Black

    @pdf.rectangle(x, y, p, h).close_fill_stroke

  end

Showing message on status bar

korakot (Korakot Chaovavanich) — Mon, 06 Mar 2006 20:58:42 GMT

There's an empty space below app.title that we can
use as a status bar. So, I modify this recipe and
make it into a module. (need fgimage.pyd from here)



# status.py

from graphics import *

import fgimage

__all__ = ["status_on", "status_off"]



bar = Image.new((119,13))

bgcolor = screenshot().getpixel((0,0))[0]

fg = fgimage.FGImage()



def status_on(message=None):

    if message is not None:

        bar.clear(bgcolor)

        bar.text((0,11), unicode(message), 0xffffff)

    fg.set(57,30, bar._bitmapapi())



def status_off():

    fg.unset()

You can use it easily this way



>>> from status import *

>>> status_on('Hello world')  # show it

>>> status_off()              # hide it

>>>

See a screenshot.

DZone Snippets: bar code

Simple % bar in a pdf using Ruby

Showing message on status bar