Viewing file:  SurfacePDFLib.php (11.25 KB) -rwxr-xr-x
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<?php
/**
* @package php-svg-lib
* @link http://github.com/PhenX/php-svg-lib
* @author Fabien M�nager <fabien.menager@gmail.com>
* @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
*/
namespace Svg\Surface;
use Svg\Style;
use Svg\Document;
class SurfacePDFLib implements SurfaceInterface
{
const DEBUG = false;
private $canvas;
private $width;
private $height;
/** @var Style */
private $style;
public function __construct(Document $doc, $canvas = null)
{
if (self::DEBUG) echo __FUNCTION__ . "\n";
$dimensions = $doc->getDimensions();
$w = $dimensions["width"];
$h = $dimensions["height"];
if (!$canvas) {
$canvas = new \PDFlib();
/* all strings are expected as utf8 */
$canvas->set_option("stringformat=utf8");
$canvas->set_option("errorpolicy=return");
/* open new PDF file; insert a file name to create the PDF on disk */
if ($canvas->begin_document("", "") == 0) {
die("Error: " . $canvas->get_errmsg());
}
$canvas->set_info("Creator", "PDFlib starter sample");
$canvas->set_info("Title", "starter_graphics");
$canvas->begin_page_ext($w, $h, "");
}
// Flip PDF coordinate system so that the origin is in
// the top left rather than the bottom left
$canvas->setmatrix(
1, 0,
0, -1,
0, $h
);
$this->width = $w;
$this->height = $h;
$this->canvas = $canvas;
}
function out()
{
if (self::DEBUG) echo __FUNCTION__ . "\n";
$this->canvas->end_page_ext("");
$this->canvas->end_document("");
return $this->canvas->get_buffer();
}
public function save()
{
if (self::DEBUG) echo __FUNCTION__ . "\n";
$this->canvas->save();
}
public function restore()
{
if (self::DEBUG) echo __FUNCTION__ . "\n";
$this->canvas->restore();
}
public function scale($x, $y)
{
if (self::DEBUG) echo __FUNCTION__ . "\n";
$this->canvas->scale($x, $y);
}
public function rotate($angle)
{
if (self::DEBUG) echo __FUNCTION__ . "\n";
$this->canvas->rotate($angle);
}
public function translate($x, $y)
{
if (self::DEBUG) echo __FUNCTION__ . "\n";
$this->canvas->translate($x, $y);
}
public function transform($a, $b, $c, $d, $e, $f)
{
if (self::DEBUG) echo __FUNCTION__ . "\n";
$this->canvas->concat($a, $b, $c, $d, $e, $f);
}
public function beginPath()
{
if (self::DEBUG) echo __FUNCTION__ . "\n";
// TODO: Implement beginPath() method.
}
public function closePath()
{
if (self::DEBUG) echo __FUNCTION__ . "\n";
$this->canvas->closepath();
}
public function fillStroke()
{
if (self::DEBUG) echo __FUNCTION__ . "\n";
$this->canvas->fill_stroke();
}
public function clip()
{
if (self::DEBUG) echo __FUNCTION__ . "\n";
$this->canvas->clip();
}
public function fillText($text, $x, $y, $maxWidth = null)
{
if (self::DEBUG) echo __FUNCTION__ . "\n";
$this->canvas->set_text_pos($x, $y);
$this->canvas->show($text);
}
public function strokeText($text, $x, $y, $maxWidth = null)
{
if (self::DEBUG) echo __FUNCTION__ . "\n";
// TODO: Implement drawImage() method.
}
public function drawImage($image, $sx, $sy, $sw = null, $sh = null, $dx = null, $dy = null, $dw = null, $dh = null)
{
if (self::DEBUG) echo __FUNCTION__ . "\n";
if (strpos($image, "data:") === 0) {
$data = substr($image, strpos($image, ";") + 1);
if (strpos($data, "base64") === 0) {
$data = base64_decode(substr($data, 7));
}
}
else {
$data = file_get_contents($image);
}
$image = tempnam("", "svg");
file_put_contents($image, $data);
$img = $this->canvas->load_image("auto", $image, "");
$sy = $sy - $sh;
$this->canvas->fit_image($img, $sx, $sy, 'boxsize={' . "$sw $sh" . '} fitmethod=entire');
unlink($image);
}
public function lineTo($x, $y)
{
if (self::DEBUG) echo __FUNCTION__ . "\n";
$this->canvas->lineto($x, $y);
}
public function moveTo($x, $y)
{
if (self::DEBUG) echo __FUNCTION__ . "\n";
$this->canvas->moveto($x, $y);
}
public function quadraticCurveTo($cpx, $cpy, $x, $y)
{
if (self::DEBUG) echo __FUNCTION__ . "\n";
// FIXME not accurate
$this->canvas->curveTo($cpx, $cpy, $cpx, $cpy, $x, $y);
}
public function bezierCurveTo($cp1x, $cp1y, $cp2x, $cp2y, $x, $y)
{
if (self::DEBUG) echo __FUNCTION__ . "\n";
$this->canvas->curveto($cp1x, $cp1y, $cp2x, $cp2y, $x, $y);
}
public function arcTo($x1, $y1, $x2, $y2, $radius)
{
if (self::DEBUG) echo __FUNCTION__ . "\n";
}
public function arc($x, $y, $radius, $startAngle, $endAngle, $anticlockwise = false)
{
if (self::DEBUG) echo __FUNCTION__ . "\n";
$this->canvas->arc($x, $y, $radius, $startAngle, $endAngle);
}
public function circle($x, $y, $radius)
{
if (self::DEBUG) echo __FUNCTION__ . "\n";
$this->canvas->circle($x, $y, $radius);
}
public function ellipse($x, $y, $radiusX, $radiusY, $rotation, $startAngle, $endAngle, $anticlockwise)
{
if (self::DEBUG) echo __FUNCTION__ . "\n";
$this->canvas->ellipse($x, $y, $radiusX, $radiusY);
}
public function fillRect($x, $y, $w, $h)
{
if (self::DEBUG) echo __FUNCTION__ . "\n";
$this->rect($x, $y, $w, $h);
$this->fill();
}
public function rect($x, $y, $w, $h, $rx = 0, $ry = 0)
{
if (self::DEBUG) echo __FUNCTION__ . "\n";
$canvas = $this->canvas;
if ($rx <= 0.000001/* && $ry <= 0.000001*/) {
$canvas->rect($x, $y, $w, $h);
return;
}
/* Define a path for a rectangle with corners rounded by a given radius.
* Start from the lower left corner and proceed counterclockwise.
*/
$canvas->moveto($x + $rx, $y);
/* Start of the arc segment in the lower right corner */
$canvas->lineto($x + $w - $rx, $y);
/* Arc segment in the lower right corner */
$canvas->arc($x + $w - $rx, $y + $rx, $rx, 270, 360);
/* Start of the arc segment in the upper right corner */
$canvas->lineto($x + $w, $y + $h - $rx );
/* Arc segment in the upper right corner */
$canvas->arc($x + $w - $rx, $y + $h - $rx, $rx, 0, 90);
/* Start of the arc segment in the upper left corner */
$canvas->lineto($x + $rx, $y + $h);
/* Arc segment in the upper left corner */
$canvas->arc($x + $rx, $y + $h - $rx, $rx, 90, 180);
/* Start of the arc segment in the lower left corner */
$canvas->lineto($x , $y + $rx);
/* Arc segment in the lower left corner */
$canvas->arc($x + $rx, $y + $rx, $rx, 180, 270);
}
public function fill()
{
if (self::DEBUG) echo __FUNCTION__ . "\n";
$this->canvas->fill();
}
public function strokeRect($x, $y, $w, $h)
{
if (self::DEBUG) echo __FUNCTION__ . "\n";
$this->rect($x, $y, $w, $h);
$this->stroke();
}
public function stroke()
{
if (self::DEBUG) echo __FUNCTION__ . "\n";
$this->canvas->stroke();
}
public function endPath()
{
if (self::DEBUG) echo __FUNCTION__ . "\n";
$this->canvas->endPath();
}
public function measureText($text)
{
if (self::DEBUG) echo __FUNCTION__ . "\n";
$style = $this->getStyle();
$font = $this->getFont($style->fontFamily, $style->fontStyle);
return $this->canvas->stringwidth($text, $font, $this->getStyle()->fontSize);
}
public function getStyle()
{
if (self::DEBUG) echo __FUNCTION__ . "\n";
return $this->style;
}
public function setStyle(Style $style)
{
if (self::DEBUG) echo __FUNCTION__ . "\n";
$this->style = $style;
$canvas = $this->canvas;
if (($stroke = $style->stroke) && $stroke !== "none") {
$canvas->setcolor(
"stroke",
"rgb",
$stroke[0] / 255,
$stroke[1] / 255,
$stroke[2] / 255,
null
);
}
if (($fill = $style->fill) && $fill !== "none") {
$canvas->setcolor(
"fill",
"rgb",
$fill[0] / 255,
$fill[1] / 255,
$fill[2] / 255,
null
);
}
if ($fillRule = strtolower($style->fillRule)) {
$map = array(
"nonzero" => "winding",
"evenodd" => "evenodd",
);
if (isset($map[$fillRule])) {
$fillRule = $map[$fillRule];
$canvas->set_parameter("fillrule", $fillRule);
}
}
$opts = array();
if ($style->strokeWidth > 0.000001) {
$opts[] = "linewidth=$style->strokeWidth";
}
if (in_array($style->strokeLinecap, array("butt", "round", "projecting"))) {
$opts[] = "linecap=$style->strokeLinecap";
}
if (in_array($style->strokeLinejoin, array("miter", "round", "bevel"))) {
$opts[] = "linejoin=$style->strokeLinejoin";
}
$canvas->set_graphics_option(implode(" ", $opts));
$opts = array();
$opacity = $style->opacity;
if ($opacity !== null && $opacity < 1.0) {
$opts[] = "opacityfill=$opacity";
$opts[] = "opacitystroke=$opacity";
}
else {
$fillOpacity = $style->fillOpacity;
if ($fillOpacity !== null && $fillOpacity < 1.0) {
$opts[] = "opacityfill=$fillOpacity";
}
$strokeOpacity = $style->strokeOpacity;
if ($strokeOpacity !== null && $strokeOpacity < 1.0) {
$opts[] = "opacitystroke=$strokeOpacity";
}
}
if (count($opts)) {
$gs = $canvas->create_gstate(implode(" ", $opts));
$canvas->set_gstate($gs);
}
$font = $this->getFont($style->fontFamily, $style->fontStyle);
if ($font) {
$canvas->setfont($font, $style->fontSize);
}
}
private function getFont($family, $style)
{
$map = array(
"serif" => "Times",
"sans-serif" => "Helvetica",
"fantasy" => "Symbol",
"cursive" => "Times",
"monospace" => "Courier",
"arial" => "Helvetica",
"verdana" => "Helvetica",
);
$family = strtolower($family);
if (isset($map[$family])) {
$family = $map[$family];
}
return $this->canvas->load_font($family, "unicode", "fontstyle=$style");
}
public function setFont($family, $style, $weight)
{
// TODO: Implement setFont() method.
}
}
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