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Edit File: starter_image.php

<?php
# $Id: starter_image.php,v 1.1.2.1 2007/12/29 23:26:05 rjs Exp $
# Starter image:
# Load and place an image using various options for scaling and positioning
#
# Place the image it its original size.
# Place the image with scaling and orientation to the west.
# Fit the image into a box with clipping.
# Fit the image into a box with proportional resizing.
# Fit the image into a box entirely.
#
# Required software: PDFlib Lite/PDFlib/PDFlib+PDI/PPS 7
# Required data: image file

# This is where the data files are. Adjust as necessary.
$searchpath = "../data";
$title = "Starter Image";

# create a new PDFlib object
$p = PDF_new();

$imagefile = "lionel.jpg";
$bw = 400;
$bh = 200;
$x = 20;
$y = 580;
$yoffset = 260;

PDF_set_parameter($p, "SearchPath", $searchpath);

# This means we must check return values of load_font() etc.
    PDF_set_parameter($p, "errorpolicy", "return");

if (PDF_begin_document($p, "", "") == 0) {
	die("Error: " .  PDF_get_errmsg($p));
    }

PDF_set_info($p, "Creator", "PDFlib Cookbook");
    $buf = $title .  '  $Revision: 1.1.2.1 $';
    PDF_set_info($p, "Title", $buf);

# For PDFlib Lite: change "unicode" to "winansi"
    $font = PDF_load_font($p, "Helvetica", "winansi", "");
    if ($font == 0) {
	die("Error: " .  PDF_get_errmsg($p));
    }

# Load the image
    $image = PDF_load_image($p, "auto", $imagefile, "");
    if ($image == 0) {
	die("Error: " .  PDF_get_errmsg($p));
    }

# Start page 1
    PDF_begin_page_ext($p, 0, 0, "width=a4.width height=a4.height");
    PDF_setfont($p, $font, 12);

# ------------------------------------
    # Place the image in its original size
    # ------------------------------------

# Position the image in its original size with its lower left corner
    # at the reference point (20, 380)
    
    PDF_fit_image($p, $image, 20, 380, "");

# Output some descriptive text
    PDF_fit_textline($p,
	"The image is placed with the lower left corner in its original " .
	"size at reference point (20, 380):", 20, 820, "");
    PDF_fit_textline($p, "fit_image(image, 20, 380, \"\");", 20, 800, "");

# --------------------------------------------------------
    # Place the image with scaling and orientation to the west
    # --------------------------------------------------------

# Position the image with its lower right corner at the reference
    # point (580, 20).
    # "scale=0.5" scales the image by 0.5.
    # "orientate=west" orientates the image to the west.
    
    PDF_fit_image($p, $image, 580, 20,
	"scale=0.5 position={right bottom} orientate=west");

# Output some descriptive text
    PDF_fit_textline($p,
	"The image is placed with a scaling of 0.5 and an orientation to " .
	"the west with the lower right corner", 580, 320,
	"position={right bottom}");
    PDF_fit_textline($p,
	" at reference point (580, 20): fit_image(image, 580, 20, " .
	"\"scale=0.5 orientate=west position={right bottom}\");",
	580, 300, "position={right bottom}");

PDF_end_page_ext($p, "");

# Start page 2
    PDF_begin_page_ext($p, 0, 0, "width=a4.width height=a4.height");
    PDF_setfont($p, $font, 12);

# --------------------------------------
    # Fit the image into a box with clipping
    # --------------------------------------

# The "boxsize" option defines a box with a given width and height and
    # its lower left corner located at the reference point.
    # "position={right top}" positions the image on the top right of the
    # box.
    # "fitmethod=clip" clips the image to fit it into the box.
    
    $buf = "boxsize={" . $bw . " " . $bh . 
	    "} position={right top} fitmethod=clip";
    PDF_fit_image($p, $image, $x, $y, $buf);

# Output some descriptive text
    PDF_fit_textline($p,
	"fit_image(image, x, y, \"boxsize={400 200} position={right top} " .
	"fitmethod=clip\");", 20, $y+$bh+10, "");

# ---------------------------------------------------
    # Fit the image into a box with proportional resizing
    # ---------------------------------------------------

# The "boxsize" option defines a box with a given width and height and
    # its lower left corner located at the reference point.
    # "position={center}" positions the image in the center of the
    # box.
    # "fitmethod=meet" resizes the image proportionally until its height
    # or width completely fits into the box.
    # The "showborder" option is used to illustrate the borders of the box.
    
    $buf = "boxsize={" . $bw . " " . $bh . 
		"} position={center} fitmethod=meet showborder";
    PDF_fit_image($p, $image, $x, $y-=$yoffset, $buf);

# Output some descriptive text
    PDF_fit_textline($p,
	"fit_image(image, x, y, \"boxsize={400 200} position={center} " .
	"fitmethod=meet showborder\");", 20, $y+$bh+10, "");

# ---------------------------------
    # Fit the image into a box entirely
    # ---------------------------------

# The "boxsize" option defines a box with a given width and height and
    # its lower left corner located at the reference point.
    # By default, the image is positioned in the lower left corner of the
    # box.
    # "fitmethod=entire" resizes the image proportionally until its height
    # or width completely fits into the box.
    
    $buf =  "boxsize={" . $bw . " " . $bh . "} fitmethod=entire";
    PDF_fit_image($p, $image, $x, $y-=$yoffset, $buf);

# Output some descriptive text
    PDF_fit_textline($p,
	"fit_image(image, x, y, \"boxsize={400 200} fitmethod=entire\");",
	20, $y+$bh+10, "");

PDF_end_page_ext($p, "");

PDF_close_image($p, $image);

PDF_end_document($p, "");

$buf = PDF_get_buffer($p);
$len = strlen($buf);

header("Content-type: application/pdf");
header("Content-Length: $len");
header("Content-Disposition: inline; filename=hello.pdf");
print $buf;