File: C:/xampp/htdocs/PDFlib91/bind/php/starter_color.php
<?php
# $Id: starter_color.php,v 1.11 2013/03/01 14:56:54 stm Exp $
# Starter color:
# Demonstrate the basic use of supported color spaces
#
# Apply the following color spaces to text and vector graphics:
# - gray
# - rgb
# - cmyk
# - iccbasedgray/rgb/cmyk
# - spot
# - lab
# - pattern
# - shadings
#
# Required software: PDFlib/PDFlib+PDI/PPS 7
# Required data: none
# This is where the data files are. Adjust as necessary.
$searchpath = dirname(dirname(__FILE__)).'/data';
$outfile = "";
$title = "Starter Color";
$y = 800;
$x = 50;
$xoffset1=80;
$xoffset2 = 100;
$yoffset = 70;
$r = 30;
try {
# create a new PDFlib object
$p = new PDFlib();
$p->set_option("SearchPath={{" . $searchpath . "}}");
# This means we must check return values of load_font() etc.
$p->set_option("errorpolicy=return");
# all strings are expected as utf8
$p->set_option("stringformat=utf8");
if ($p->begin_document("", "") == 0) {
die("Error: " . $p->get_errmsg());
}
$p->set_info("Creator", "PDFlib Cookbook");
$buf = $title . ' $Revision: 1.11 $';
$p->set_info("Title", $buf);
# Load the font
$font = $p->load_font("Helvetica", "unicode", "");
if ($font == 0) {
die("Error: " . $p->get_errmsg());
}
# Start the page
$p->begin_page_ext(0, 0, "width=a4.width height=a4.height");
$p->setfont($font, 14);
# -------------------------------------------------------------------
# Use default colors
#
# If no special color is set the default values will be used. The
# default values are restored at the beginning of the page.
# 0=black in the Gray color space is the default fill and stroke
# color in many cases, as shown in our sample.
# -------------------------------------------------------------------
# Fill a circle with the default black fill color
$p->circle($x, $y-=$yoffset, $r);
$p->fill();
# Output text with default black fill color
$p->fit_textline(
"Circle and text filled with default color {gray 0}",
$x+$xoffset2, $y, "");
$p->fit_textline("1.", $x+$xoffset1, $y, "");
# -------------------------------------------------------------------
# Use the Gray color space
#
# Gray color is defined by Gray values between 0=black and 1=white.
# -------------------------------------------------------------------
# Using setcolor(), set the current fill color to a light gray
# represented by (0.5, 0, 0, 0) which defines 50% gray. Since gray
# colors are defined by only one value, the last three function
# parameters must be set to 0.
$p->setcolor("fill", "gray", 0.5, 0, 0, 0);
# Fill a circle with the current fill color defined above
$p->circle($x, $y-=$yoffset, $r);
$p->fill();
# Output text with the current fill color
$p->fit_textline("Circle and text filled with {gray 0.5}",
$x+$xoffset2, $y, "");
# Alternatively, you can set the fill color in the call to
# fit_textline() using the "fillcolor" option. This case applies the
# fill color just the single function call. The current fill color
# won't be affected.
$p->fit_textline("2.", $x+$xoffset1, $y, "fillcolor={gray 0.5}");
# --------------------------------------------------------------------
# Use the RGB color space
#
# RGB color is defined by RGB triples, i.e. three values between 0 and
# 1 specifying the percentage of red, green, and blue.
# (0, 0, 0) is black and (1, 1, 1) is white. The commonly used RGB
# color values in the range 0�255 must be divided by 255 in order to
# scale them to the range 0�1 as required by PDFlib.
# --------------------------------------------------------------------
# Use setcolor() to set the fill color to a grass-green
# represented by (0.1, 0.95, 0.3, 0) which defines 10% red, 95% green,
# 30% blue. Since RGB colors are defined by only three values, the last
# function parameter must be set to 0.
$p->setcolor("fill", "rgb", 0.1, 0.95, 0.3, 0);
# Draw a circle with the current fill color defined above
$p->circle($x, $y-=$yoffset, $r);
$p->fill();
# Output a text line with the RGB fill color defined above
$p->fit_textline("Circle and text filled with {rgb 0.1 0.95 0.3}",
$x+$xoffset2, $y, "");
# Alternatively, you can set the fill color in the call to
# fit_textline() using the "fillcolor" option. This case applies the
# fill color just the single function call. The current fill color
# won't be affected.
$p->fit_textline("3.", $x+$xoffset1, $y,
"fillcolor={rgb 0.1 0.95 0.3}");
# --------------------------------------------------------------------
# Use the CMYK color space
#
# CMYK color is defined by four CMYK values between 0 = no color and
# 1 = full color representing cyan, magenta, yellow, and black values;
# (0, 0, 0, 0) is white and (0, 0, 0, 1) is black.
# --------------------------------------------------------------------
# Use setcolor() to set the current fill color to a pale
# orange, represented by (0.1, 0.7, 0.7, 0.1) which defines 10% Cyan,
# 70% Magenta, 70% Yellow, and 10% Black.
$p->setcolor("fill", "cmyk", 0.1, 0.7, 0.7, 0.1);
# Fill a circle with the current fill color defined above
$p->circle($x, $y-=$yoffset, $r);
$p->fill();
# Output a text line with the CMYK fill color defined above
$p->fit_textline(
"Circle and text filled with {cmyk 0.1 0.7 0.7 0.1}",
$x+$xoffset2, $y, "");
# Alternatively, you can set the fill color in the call to
# fit_textline() using the "fillcolor" option. This case applies the
# fill color just the single function call. The current fill color
# won't be affected.
$p->fit_textline("4.", $x+$xoffset1, $y,
"fillcolor={cmyk 0.1 0.7 0.7 0.1}");
# --------------------------------------------------------------------
# Use a Lab color
#
# Device-independent color in the CIE L*a*b* color space is specified
# by a luminance value in the range 0-100 and two color values in the
# range -127 to 128. The first value contains the green-red axis,
# while the second value contains the blue-yellow axis.
# --------------------------------------------------------------------
# Set the current fill color to a loud blue, represented by
# (100, -127, -127, 0). Since Lab colors are defined by only three
# values, the last function parameter must be set to 0.
$p->setcolor("fill", "lab", 100, -127, -127, 0);
# Fill a circle with the fill color defined above
$p->circle($x, $y-=$yoffset, $r);
$p->fill();
# Output a text line with the Lab fill color defined above
$p->fit_textline("Circle and text filled with {lab 100 -127 -127}",
$x+$xoffset2, $y, "");
# Alternatively, you can set the fill color in the call to
# fit_textline() using the "fillcolor" option. This case applies the
# fill color just the single function call. The current fill color
# won't be affected.
$p->fit_textline("5.", $x+$xoffset1, $y,
"fillcolor={lab 100 -127 -127}");
# ---------------------------------------------------------------
# Use an ICC based color
#
# ICC-based colors are specified with the help of an ICC profile.
# ---------------------------------------------------------------
# Load the sRGB profile. sRGB is guaranteed to be always available
$icchandle = $p->load_iccprofile("sRGB", "usage=iccbased");
# Set the color based on the sRGB ICC profile to a grass-green,
# represented by the RGB color values (0.1 0.95 0.3) which
# define 10% Red, 95% Green, and 30% Blue.
#
# You can use the same syntax for CMYK and grayscale profiles with
# the corresponding number of four or one color values.
$p->set_graphics_option("fillcolor={iccbased " . $icchandle
. " 0.1 0.95 0.3}");
# Fill a circle with the ICC based RGB fill color defined above #
$p->circle($x, $y-=$yoffset, $r);
$p->fill();
# Output a text line with the ICC based RGB fill color defined above.
$p->fit_textline(
"Circle and text filled with {iccbased srgb 0.1 0.95 0.3}",
$x+$xoffset2, $y, "");
# Alternatively, you can set the fill color in the call to
# fit_textline() using the "fillcolor" option. This case applies the
# fill color just the single function call. The current fill color
# won't be affected.
#
# The sRGB profile can also be specified directly with a keyword,
# which makes the explicit loading of the profile with
# PDF_load_iccprofile() unnecessary.
$p->fit_textline("6.", $x+$xoffset1, $y,
"fillcolor={iccbased srgb 0.1 0.95 0.3}");
# --------------------------------------------------------------------
# Use a spot color
#
# Spot color (separation color space) is a predefined or arbitrarily
# named custom color with an alternate representation in one of the
# other color spaces above; this is generally used for preparing
# documents which are intended to be printed on an offset printing
# machine with one or more custom colors. The tint value (percentage)
# ranges from 0 = no color to 1 = maximum intensity of the spot color.
# --------------------------------------------------------------------
# Define the spot color "PANTONE 281 U" from the builtin color
# library PANTONE
$spot = $p->makespotcolor("PANTONE 281 U");
# Set the spot color "PANTONE 281 U" with a tint value of 1 (=100%)
# and output some text. Since spot colors are defined by only two
# values, the last two function parameters must be set to 0.
$p->setcolor("fill", "spot", $spot, 1.0, 0, 0);
# Fill a circle with the ICC based RGB fill color defined above
$p->circle($x, $y-=$yoffset, $r);
$p->fill();
$p->fit_textline(
"Circle and text filled with {spotname {PANTONE 281 U} 1}",
$x+$xoffset2, $y, "");
# Alternatively, you can set the fill color in the call to
# fit_textline() using the "fillcolor" option. This case applies the
# fill color just the single function call. The current fill color
# won't be affected.
$p->fit_textline("7.", $x+$xoffset1, $y,
"fillcolor={spotname {PANTONE 281 U} 1}");
# or
$buf = "fillcolor={spot " . $spot . " 1}";
$p->fit_textline("7.", $x+$xoffset1, $y, $buf);
# ----------------------------------------------------------
# For using the Pattern color space, see the Cookbook topics
# graphics/fill_pattern and images/background_pattern.
# ----------------------------------------------------------
# ---------------------------------------------------------
# For using the Shading color space, see the Cookbook topic
# color/color_gradient.
# ---------------------------------------------------------
$p->end_page_ext("");
$p->end_document("");
$buf = $p->get_buffer();
$len = strlen($buf);
header("Content-type: application/pdf");
header("Content-Length: $len");
header("Content-Disposition: inline; filename=starter_color.pdf");
print $buf;
}
catch (PDFlibException $e) {
die("PDFlib exception occurred in starter_color starter_color:\n" .
"[" . $e->get_errnum() . "] " . $e->get_apiname() . ": " .
$e->get_errmsg() . "\n");
}
catch (Exception $e) {
die($e);
}
$p = 0;
?>