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# coding: UTF-8
#============================================================+
# Begin : 2009-03-19
# Last Update : 2010-05-20
#
# Description : Example 047 for RBPDF class
# Transactions
#
# Author: Jun NAITOH
# License: LGPL 2.1 or later
#============================================================+
require("example_common.rb")
class Example047Controller < ApplicationController
def index
# create new PDF document
pdf = RBPDF.new(PDF_PAGE_ORIENTATION, PDF_UNIT, PDF_PAGE_FORMAT, true, 'UTF-8', false)
# set document information
pdf.set_creator(PDF_CREATOR)
pdf.set_author(PDF_AUTHOR)
pdf.set_title('RBPDF Example 047')
pdf.set_subject('RBPDF Tutorial')
pdf.set_keywords('RBPDF, PDF, example, test, guide')
# set default header data
pdf.set_header_data(PDF_HEADER_LOGO, PDF_HEADER_LOGO_WIDTH, PDF_HEADER_TITLE + ' 047', PDF_HEADER_STRING)
# set header and footer fonts
pdf.set_header_font([PDF_FONT_NAME_MAIN, '', PDF_FONT_SIZE_MAIN])
pdf.set_footer_font([PDF_FONT_NAME_DATA, '', PDF_FONT_SIZE_DATA])
# set default monospaced font
pdf.set_default_monospaced_font(PDF_FONT_MONOSPACED)
# set margins
pdf.set_margins(PDF_MARGIN_LEFT, PDF_MARGIN_TOP, PDF_MARGIN_RIGHT)
pdf.set_header_margin(PDF_MARGIN_HEADER)
pdf.set_footer_margin(PDF_MARGIN_FOOTER)
# set auto page breaks
pdf.set_auto_page_break(true, PDF_MARGIN_BOTTOM)
# set image scale factor
pdf.set_image_scale(PDF_IMAGE_SCALE_RATIO)
# set some language-dependent strings
pdf.set_language_array($l)
# ---------------------------------------------------------
# set font
pdf.set_font('helvetica', '', 16)
# add a page
pdf.add_page()
txt = 'Example of Transactions.
RBPDF allows you to undo some operations using the Transactions.
Check the source code for further information.'
pdf.write(0, txt, '', 0, 'L', true, 0, false, false, 0)
pdf.ln(5)
pdf.set_font('times', '', 12)
# start transaction
pdf.start_transaction()
pdf.write(0, "LINE 1\n")
pdf.write(0, "LINE 2\n")
# restarts transaction
pdf.start_transaction()
pdf.write(0, "LINE 3\n")
pdf.write(0, "LINE 4\n")
# rolls back to the last (re)start
pdf = pdf.rollback_transaction()
pdf.write(0, "LINE 5\n")
pdf.write(0, "LINE 6\n")
# start transaction
pdf.start_transaction()
pdf.write(0, "LINE 7\n")
# commit transaction (actually just frees memory)
pdf.commit_transaction();
# ---------------------------------------------------------
# Close and output PDF document
send_data pdf.output(), :type => "application/pdf", :disposition => "inline"
end
end
#============================================================+
# END OF FILE
#============================================================+
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