Size modifiers are:
- Printer::IMG_DEFAULT (leave image at original size)
- Printer::IMG_DOUBLE_WIDTH
- Printer::IMG_DOUBLE_HEIGHT
See the example/ folder for detailed examples.
The functions bitImage() and bitImageColumnFormat() take the same
parameters, and can be used if your printer doesn't support the newer
graphics commands.
<?php
/* Print-outs using the newer graphics print command */
require __DIR__ . '/../autoload.php';
use Mike42\Escpos\Printer;
use Mike42\Escpos\EscposImage;
use Mike42\Escpos\PrintConnectors\FilePrintConnector;
$connector = new FilePrintConnector("php://stdout");
$printer = new Printer($connector);
try {
$tux = EscposImage::load("resources/tux.png", false);
$printer->graphics($tux);
$printer->text("Regular Tux.\n");
$printer->feed();
$printer->graphics($tux, Printer::IMG_DOUBLE_WIDTH);
$printer->text("Wide Tux.\n");
$printer->feed();
$printer->graphics($tux, Printer::IMG_DOUBLE_HEIGHT);
$printer->text("Tall Tux.\n");
$printer->feed();
$printer->graphics($tux, Printer::IMG_DOUBLE_WIDTH | Printer::IMG_DOUBLE_HEIGHT);
$printer->text("Large Tux in correct proportion.\n");
$printer->cut();
} catch (Exception $e) {
/* Images not supported on your PHP, or image file not found */
$printer->text($e->getMessage() . "\n");
}
$printer->close();
foreach ($pages as $page) {
$printer->graphics($page, Printer::IMG_DOUBLE_HEIGHT | Printer::IMG_DOUBLE_WIDTH);
}
$printer->cut();
$printer->close();
/*
* 3: PDF printing still too slow? If you regularly print the same files, serialize & compress your
* EscposImage objects (after printing[1]), instead of throwing them away.
*
* (You can also do this to print logos on computers which don't have an
* image processing library, by preparing a serialized version of your logo on your PC)
*
* [1]After printing, the pixels are loaded and formatted for the print command you used, so even a raspberry pi can print complex PDF's quickly.
*/
$connector = new FilePrintConnector("php://stdout");
$printer = new Printer($connector);
$pdf = 'resources/document.pdf';
$ser = 'resources/document.z';
if (!file_exists($ser)) {
$pages = ImagickEscposImage::loadPdf($pdf);
} else {
$pages = unserialize(gzuncompress(file_get_contents($ser)));
}
foreach ($pages as $page) {
$printer->graphics($page);
}
$printer->cut();
$printer->close();
if (!file_exists($ser)) {
file_put_contents($ser, gzcompress(serialize($pages)));
}
}
$printer->setJustification();
// Reset
$printer->cut();
/* Barcodes - see barcode.php for more detail */
$printer->setBarcodeHeight(80);
$printer->setBarcodeTextPosition(Printer::BARCODE_TEXT_BELOW);
$printer->barcode("9876");
$printer->feed();
$printer->cut();
/* Graphics - this demo will not work on some non-Epson printers */
try {
$logo = EscposImage::load("resources/escpos-php.png", false);
$imgModes = array(Printer::IMG_DEFAULT, Printer::IMG_DOUBLE_WIDTH, Printer::IMG_DOUBLE_HEIGHT, Printer::IMG_DOUBLE_WIDTH | Printer::IMG_DOUBLE_HEIGHT);
foreach ($imgModes as $mode) {
$printer->graphics($logo, $mode);
}
} catch (Exception $e) {
/* Images not supported on your PHP, or image file not found */
$printer->text($e->getMessage() . "\n");
}
$printer->cut();
/* Bit image */
try {
$logo = EscposImage::load("resources/escpos-php.png", false);
$imgModes = array(Printer::IMG_DEFAULT, Printer::IMG_DOUBLE_WIDTH, Printer::IMG_DOUBLE_HEIGHT, Printer::IMG_DOUBLE_WIDTH | Printer::IMG_DOUBLE_HEIGHT);
foreach ($imgModes as $mode) {
$printer->bitImage($logo, $mode);
}
} catch (Exception $e) {
/* Images not supported on your PHP, or image file not found */
/* Fill in your own connector here */
$connector = new FilePrintConnector("php://stdout");
/* Information for the receipt */
$items = array(new item("Example item #1", "4.00"), new item("Another thing", "3.50"), new item("Something else", "1.00"), new item("A final item", "4.45"));
$subtotal = new item('Subtotal', '12.95');
$tax = new item('A local tax', '1.30');
$total = new item('Total', '14.25', true);
/* Date is kept the same for testing */
// $date = date('l jS \of F Y h:i:s A');
$date = "Monday 6th of April 2015 02:56:25 PM";
/* Start the printer */
$logo = EscposImage::load("resources/escpos-php.png", false);
$printer = new Printer($connector);
/* Print top logo */
$printer->setJustification(Printer::JUSTIFY_CENTER);
$printer->graphics($logo);
/* Name of shop */
$printer->selectPrintMode(Printer::MODE_DOUBLE_WIDTH);
$printer->text("ExampleMart Ltd.\n");
$printer->selectPrintMode();
$printer->text("Shop No. 42.\n");
$printer->feed();
/* Title of receipt */
$printer->setEmphasis(true);
$printer->text("SALES INVOICE\n");
$printer->setEmphasis(false);
/* Items */
$printer->setJustification(Printer::JUSTIFY_LEFT);
$printer->setEmphasis(true);
$printer->text(new item('', '$'));
$printer->setEmphasis(false);
$imgCombined_path = $tmpf_path . ".png";
try {
// Convert, load image, remove temp files
$cmd = sprintf("convert %s %s +append %s", escapeshellarg($img1_path), escapeshellarg($img2_path), escapeshellarg($imgCombined_path));
exec($cmd, $outp, $retval);
if ($retval != 0) {
// Detect and handle command failure
throw new Exception("Command \"{$cmd}\" returned {$retval}." . implode("\n", $outp));
}
$img = new EscposImage($imgCombined_path);
// Setup the printer
$connector = new FilePrintConnector("php://stdout");
$profile = DefaultCapabilityProfile::getInstance();
// Run the actual print
$printer = new Printer($connector, $profile);
try {
$printer->setJustification(Printer::JUSTIFY_CENTER);
$printer->graphics($img);
$printer->cut();
} finally {
// Always close the connection
$printer->close();
}
} catch (Exception $e) {
// Print out any errors: Eg. printer connection, image loading & external image manipulation.
echo $e->getMessage() . "\n";
echo $e->getTraceAsString();
} finally {
unlink($imgCombined_path);
unlink($tmpf_path);
}
