PDFlib Cookbook

cookbook

blocks/create_blocks_with_poca

Create PDFlib Blocks with the POCA interface.

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<?php
/*
 * Create PDFlib Blocks with the POCA interface
 * 
 * Required software: PPS 9
 * Required data: none
 */

$title = "Create PDFlib Blocks with POCA";

try {
    $p = new PDFlib();
        
    /* This means we must check return values of load_font() etc. */
    $p->set_option("errorpolicy=return");
    
    $p->set_option("stringformat=utf8");
    
    if ($p->begin_document("", "") == 0)
        throw new Exception("Error: " . $p->get_errmsg());

    $p->set_info("Creator", "PDFlib Cookbook");
    $p->set_info("Title", $title );

    $p->begin_page_ext(0, 0, "width=a4.width height=a4.height");

    $font = $p->load_font("Helvetica-Bold", "unicode", "");

    if ($font == 0)
        throw new Exception("Error: " . $p->get_errmsg());

    $p->fit_textline(
        "This document contains PDFlib Blocks generated with POCA",
        50, 800, "font=" . $font . " fontsize=12");

    /* Create the Block dictionary */
    $blockdict = $p->poca_new("containertype=dict usage=blocks");


    /* ---------------------------------------------------------
     * Create a Text Block
     * ---------------------------------------------------------
     */
    $blockname = "job_title";
    
    $textblock = $p->poca_new("containertype=dict usage=blocks " .
        "type=name key=Type value=Block");

    $container1 = $p->poca_new("containertype=array usage=blocks " .
        "type=integer values={70 640 300 700}");

    $p->poca_insert($textblock, "type=array key=Rect value=" . $container1);

    $p->poca_insert($textblock, "type=name key=Name value=" . $blockname);
    $p->poca_insert($textblock, "type=name key=Subtype value=Text");
    $p->poca_insert($textblock, "type=name key=fitmethod value=auto");
    $p->poca_insert($textblock, "type=string key=fontname value=Helvetica");
    $p->poca_insert($textblock,
        "type=string key=defaulttext value={Block created with POCA}");
    $p->poca_insert($textblock, "type=float key=fontsize value=12");
    $p->poca_insert($textblock, "type=percentage key=horizscaling value=105%");
    $p->poca_insert($textblock,
        "type=color key=fillcolor value={rgb 0 0.3 0.57}");

    $container2 = $p->poca_new("containertype=dict usage=blocks " .
            "type=integer key=format value=5");

    $p->poca_insert($textblock, "type=dict key=Custom value=" . $container2);

    /*
     * Hook up the Block in the page's Block dictionary. The PDFlib
     * Block specification requires that the key of the dictionary
     * entry is identical to the "Name" value inside the block
     * dictionary
     */
    $p->poca_insert($blockdict, "type=dict key=" . $blockname 
        . " direct=false value=" . $textblock);


    /* ---------------------------------------------------------
     * Create an Image Block
     * ---------------------------------------------------------
     */
    $blockname = "logo";
    
    $imageblock = $p->poca_new("containertype=dict usage=blocks " .
        "type=name key=Type value=Block");

    $container3 = $p->poca_new("containertype=array usage=blocks " .
        "type=integer values={70 440 300 600}");

    $p->poca_insert($imageblock, "type=array key=Rect value=" . $container3);

    $p->poca_insert($imageblock, "type=name key=Name value=" . $blockname);
    $p->poca_insert($imageblock, "type=name key=Subtype value=Image");
    $p->poca_insert($imageblock, "type=name key=fitmethod value=auto");

    /* Hook up the Block in the page's Block dictionary */
    $p->poca_insert($blockdict, "type=dict key=" . $blockname
        . " direct=false value=" . $imageblock);


    /* ---------------------------------------------------------
     * Create a PDF Block
     * ---------------------------------------------------------
     */
    $blockname = "pdflogo";
    
    $pdfblock = $p->poca_new("containertype=dict usage=blocks " .
        "type=name key=Type value=Block");

    $container4 = $p->poca_new("containertype=array usage=blocks " .
        "type=integer values={70 240 300 400}");

    $p->poca_insert($pdfblock, "type=array key=Rect value=" . $container4);

    $p->poca_insert($pdfblock, "type=name key=Name value=" . $blockname);
    $p->poca_insert($pdfblock, "type=name key=Subtype value=PDF");
    $p->poca_insert($pdfblock, "type=name key=fitmethod value=meet");
    
    /* Hook up the Block in the page's Block dictionary */
    $p->poca_insert($blockdict, "type=dict key=" . $blockname
            . " direct=false value=" . $pdfblock);

    /* Hook up the Block dictionary in the current page */
    $p->end_page_ext("blocks=" . $blockdict);

    /* Clean up */
    $p->poca_delete($blockdict, "recursive=true");
    
    $p->end_document("");
    
    $buf = $p->get_buffer();
    $len = strlen($buf);

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

} catch (PDFlibException $e) {
    echo("PDFlib exception occurred:\n".
        "[" . $e->get_errnum() . "] " . $e->get_apiname() .
        ": " . $e->get_errmsg() . "\n");
    exit(1);
} catch (Exception $e) {
    echo($e->getMessage());
    exit(1);
}

$p = 0;

?>