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<?php
/**
* @package dompdf
* @link http://dompdf.github.com/
* @author Benj Carson <benjcarson@digitaljunkies.ca>
* @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
*/
namespace Dompdf\Renderer;
use Dompdf\Frame;
use Dompdf\FrameDecorator\AbstractFrameDecorator;
use Dompdf\Helpers;
/**
* Renders block frames
*
* @package dompdf
*/
class Block extends AbstractRenderer
{
/**
* @param Frame $frame
*/
function render(Frame $frame)
{
$style = $frame->get_style();
$node = $frame->get_node();
$dompdf = $this->_dompdf;
$options = $dompdf->getOptions();
list($x, $y, $w, $h) = $frame->get_border_box();
$this->_set_opacity($frame->get_opacity($style->opacity));
if ($node->nodeName === "body") {
$h = $frame->get_containing_block("h") - (float)$style->length_in_pt([
$style->margin_top,
$style->border_top_width,
$style->border_bottom_width,
$style->margin_bottom],
(float)$style->length_in_pt($style->width));
}
// Handle anchors & links
if ($node->nodeName === "a" && $href = $node->getAttribute("href")) {
$href = Helpers::build_url($dompdf->getProtocol(), $dompdf->getBaseHost(), $dompdf->getBasePath(), $href);
$this->_canvas->add_link($href, $x, $y, (float)$w, (float)$h);
}
// Draw our background, border and content
list($tl, $tr, $br, $bl) = $style->get_computed_border_radius($w, $h);
if ($tl + $tr + $br + $bl > 0) {
$this->_canvas->clipping_roundrectangle($x, $y, (float)$w, (float)$h, $tl, $tr, $br, $bl);
}
if (($bg = $style->background_color) !== "transparent") {
$this->_canvas->filled_rectangle($x, $y, (float)$w, (float)$h, $bg);
}
if (($url = $style->background_image) && $url !== "none") {
$this->_background_image($url, $x, $y, $w, $h, $style);
}
if ($tl + $tr + $br + $bl > 0) {
$this->_canvas->clipping_end();
}
$border_box = [$x, $y, $w, $h];
$this->_render_border($frame, $border_box);
$this->_render_outline($frame, $border_box);
if ($options->getDebugLayout()) {
if ($options->getDebugLayoutBlocks()) {
$this->_debug_layout($frame->get_border_box(), "red");
if ($options->getDebugLayoutPaddingBox()) {
$this->_debug_layout($frame->get_padding_box(), "red", [0.5, 0.5]);
}
}
if ($options->getDebugLayoutLines() && $frame->get_decorator()) {
foreach ($frame->get_decorator()->get_line_boxes() as $line) {
$frame->_debug_layout([$line->x, $line->y, $line->w, $line->h], "orange");
}
}
}
$id = $frame->get_node()->getAttribute("id");
if (strlen($id) > 0) {
$this->_canvas->add_named_dest($id);
}
}
/**
* @param AbstractFrameDecorator $frame
* @param null $border_box
* @param string $corner_style
*/
protected function _render_border(AbstractFrameDecorator $frame, $border_box = null, $corner_style = "bevel")
{
$style = $frame->get_style();
$bp = $style->get_border_properties();
if (empty($border_box)) {
$border_box = $frame->get_border_box();
}
// find the radius
$radius = $style->get_computed_border_radius($border_box[2], $border_box[3]); // w, h
// Short-cut: If all the borders are "solid" with the same color and style, and no radius, we'd better draw a rectangle
if (
in_array($bp["top"]["style"], ["solid", "dashed", "dotted"]) &&
$bp["top"] == $bp["right"] &&
$bp["right"] == $bp["bottom"] &&
$bp["bottom"] == $bp["left"] &&
array_sum($radius) == 0
) {
$props = $bp["top"];
if ($props["color"] === "transparent" || $props["width"] <= 0) {
return;
}
list($x, $y, $w, $h) = $border_box;
$width = (float)$style->length_in_pt($props["width"]);
$pattern = $this->_get_dash_pattern($props["style"], $width);
$this->_canvas->rectangle($x + $width / 2, $y + $width / 2, (float)$w - $width, (float)$h - $width, $props["color"], $width, $pattern);
return;
}
// Do it the long way
$widths = [
(float)$style->length_in_pt($bp["top"]["width"]),
(float)$style->length_in_pt($bp["right"]["width"]),
(float)$style->length_in_pt($bp["bottom"]["width"]),
(float)$style->length_in_pt($bp["left"]["width"])
];
foreach ($bp as $side => $props) {
list($x, $y, $w, $h) = $border_box;
$length = 0;
$r1 = 0;
$r2 = 0;
if (!$props["style"] ||
$props["style"] === "none" ||
$props["width"] <= 0 ||
$props["color"] == "transparent"
) {
continue;
}
switch ($side) {
case "top":
$length = (float)$w;
$r1 = $radius["top-left"];
$r2 = $radius["top-right"];
break;
case "bottom":
$length = (float)$w;
$y += (float)$h;
$r1 = $radius["bottom-left"];
$r2 = $radius["bottom-right"];
break;
case "left":
$length = (float)$h;
$r1 = $radius["top-left"];
$r2 = $radius["bottom-left"];
break;
case "right":
$length = (float)$h;
$x += (float)$w;
$r1 = $radius["top-right"];
$r2 = $radius["bottom-right"];
break;
default:
break;
}
$method = "_border_" . $props["style"];
// draw rounded corners
$this->$method($x, $y, $length, $props["color"], $widths, $side, $corner_style, $r1, $r2);
}
}
/**
* @param AbstractFrameDecorator $frame
* @param null $border_box
* @param string $corner_style
*/
protected function _render_outline(AbstractFrameDecorator $frame, $border_box = null, $corner_style = "bevel")
{
$style = $frame->get_style();
$props = [
"width" => $style->outline_width,
"style" => $style->outline_style,
"color" => $style->outline_color,
];
if (!$props["style"] || $props["style"] === "none" || $props["width"] <= 0) {
return;
}
if (empty($border_box)) {
$border_box = $frame->get_border_box();
}
$offset = (float)$style->length_in_pt($props["width"]);
$pattern = $this->_get_dash_pattern($props["style"], $offset);
// If the outline style is "solid" we'd better draw a rectangle
if (in_array($props["style"], ["solid", "dashed", "dotted"])) {
$border_box[0] -= $offset / 2;
$border_box[1] -= $offset / 2;
$border_box[2] += $offset;
$border_box[3] += $offset;
list($x, $y, $w, $h) = $border_box;
$this->_canvas->rectangle($x, $y, (float)$w, (float)$h, $props["color"], $offset, $pattern);
return;
}
$border_box[0] -= $offset;
$border_box[1] -= $offset;
$border_box[2] += $offset * 2;
$border_box[3] += $offset * 2;
$method = "_border_" . $props["style"];
$widths = array_fill(0, 4, (float)$style->length_in_pt($props["width"]));
$sides = ["top", "right", "left", "bottom"];
$length = 0;
foreach ($sides as $side) {
list($x, $y, $w, $h) = $border_box;
switch ($side) {
case "top":
$length = (float)$w;
break;
case "bottom":
$length = (float)$w;
$y += (float)$h;
break;
case "left":
$length = (float)$h;
break;
case "right":
$length = (float)$h;
$x += (float)$w;
break;
default:
break;
}
$this->$method($x, $y, $length, $props["color"], $widths, $side, $corner_style);
}
}
}
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