1#!/usr/bin/env ruby
2# $Id: starter_basic.rb,v 1.3.2.5 2008/02/28 14:49:59 rjs Exp $
3#
4# Basic starter:
5# Create some simple text, vector graphics and image output
6#
7# required software: PDFlib Lite/PDFlib/PDFlib+PDI/PPS 7
8# required data: none
9#
10
11require 'PDFlib'
12
13# This is where the data files are. Adjust as necessary.
14searchpath = "../data"
15
16imagefile = "nesrin.jpg"
17
18begin
19  p = PDFlib.new
20
21  # This means we must check return values of load_font() etc.
22  p.set_parameter("errorpolicy", "return")
23
24  p.set_parameter("SearchPath", searchpath)
25
26  # we use "utf8" as textformat, this allows to use unicode encoding
27  p.set_parameter("textformat", "utf8");
28
29  if (p.begin_document("starter_basic.pdf", "") == -1)
30    raise "Error: " + p.get_errmsg()
31  end
32
33  p.set_info("Creator", "PDFlib starter sample")
34  p.set_info("Title", "starter_basic")
35
36  # We load the image before the first page, and use it
37  # on all pages
38  #
39  image = p.load_image("auto", imagefile, "")
40
41  if (image == -1)
42    raise "Error: " + p.get_errmsg()
43  end
44
45  # Page 1
46  p.begin_page_ext(595, 842, "")
47
48  # For PDFlib Lite: change "unicode" to "winansi"
49  font = p.load_font("Helvetica-Bold", "unicode", "")
50  if font == -1
51    raise "Error: " + p.get_errmsg + "\n"
52  end
53
54  p.setfont(font, 24)
55
56  p.set_text_pos(50, 700)
57  p.show("Hello world!")
58
59  p.fit_image(image,  0.0,  0.0, "scale=0.25")
60
61  p.end_page_ext("")
62
63  # Page 2
64  p.begin_page_ext(595, 842, "")
65
66  # red rectangle
67  p.setcolor("fill", "rgb", 1.0, 0.0, 0.0, 0.0)
68  p.rect(200, 200, 250, 150)
69  p.fill()
70
71  # blue circle
72  p.setcolor("fill", "rgb", 0.0, 0.0, 1.0, 0.0)
73  p.arc(400, 600, 100, 0, 360)
74  p.fill()
75
76  # thick gray line
77  p.setcolor("stroke", "gray", 0.5, 0.0, 0.0, 0.0)
78  p.setlinewidth(10)
79  p.moveto(100, 500)
80  p.lineto(300, 700)
81  p.stroke()
82
83  # Using the same image handle means the data will be copied
84  # to the PDF only once, which saves space.
85  #
86  p.fit_image(image, 150.0, 25.0, "scale=0.25")
87  p.end_page_ext("")
88
89  # Page 3
90  p.begin_page_ext(595, 842, "")
91
92  # Fit the image to a box of predefined size (without distortion)
93  optlist = "boxsize={400 400} position={center} fitmethod=meet"
94
95  p.fit_image(image, 100, 200, optlist)
96
97  p.end_page_ext("")
98
99  p.close_image(image)
100  p.end_document("")
101
102rescue  PDFlibException => pe
103  print "PDFlib exception occurred:\n"
104  print "[" + pe.get_errnum.to_s + "] " + pe.get_apiname + \
105		": " + pe.get_errmsg + "\n"
106rescue  Exception => e
107  print e.backtrace.join("\n") + "\n" + e.to_s
108ensure
109  p.delete() if p
110end
111# vim: sw=2
112