127 lines
4.5 KiB
PHP
127 lines
4.5 KiB
PHP
<?php
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/**
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* @package dompdf
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* @link http://www.dompdf.com/
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* @author Benj Carson <benjcarson@digitaljunkies.ca>
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* @author Fabien Ménager <fabien.menager@gmail.com>
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* @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
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* @version $Id: image_frame_reflower.cls.php 448 2011-11-13 13:00:03Z fabien.menager $
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*/
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/**
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* Image reflower class
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*
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* @access private
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* @package dompdf
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*/
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class Image_Frame_Reflower extends Frame_Reflower {
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function __construct(Image_Frame_Decorator $frame) {
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parent::__construct($frame);
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}
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function reflow(Frame_Decorator $block = null) {
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$this->_frame->position();
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//FLOAT
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//$frame = $this->_frame;
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//$page = $frame->get_root();
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//if (DOMPDF_ENABLE_CSS_FLOAT && $frame->get_style()->float !== "none" ) {
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// $page->add_floating_frame($this);
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//}
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// Set the frame's width
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$this->get_min_max_width();
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if ( $block ) {
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$block->add_frame_to_line($this->_frame);
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}
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}
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function get_min_max_width() {
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if (DEBUGPNG) {
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// Determine the image's size. Time consuming. Only when really needed?
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list($img_width, $img_height) = dompdf_getimagesize($this->_frame->get_image_url());
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print "get_min_max_width() ".
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$this->_frame->get_style()->width.' '.
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$this->_frame->get_style()->height.';'.
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$this->_frame->get_parent()->get_style()->width." ".
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$this->_frame->get_parent()->get_style()->height.";".
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$this->_frame->get_parent()->get_parent()->get_style()->width.' '.
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$this->_frame->get_parent()->get_parent()->get_style()->height.';'.
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$img_width. ' '.
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$img_height.'|' ;
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}
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$style = $this->_frame->get_style();
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//own style auto or invalid value: use natural size in px
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//own style value: ignore suffix text including unit, use given number as px
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//own style %: walk up parent chain until found available space in pt; fill available space
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//
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//special ignored unit: e.g. 10ex: e treated as exponent; x ignored; 10e completely invalid ->like auto
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$width = ($style->width > 0 ? $style->width : 0);
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if ( is_percent($width) ) {
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$t = 0.0;
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for ($f = $this->_frame->get_parent(); $f; $f = $f->get_parent()) {
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$f_style = $f->get_style();
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$t = $f_style->length_in_pt($f_style->width);
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if ($t != 0) {
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break;
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}
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}
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$width = ((float)rtrim($width,"%") * $t)/100; //maybe 0
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} elseif ( !mb_strpos($width, 'pt') ) {
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// Don't set image original size if "%" branch was 0 or size not given.
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// Otherwise aspect changed on %/auto combination for width/height
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// Resample according to px per inch
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// See also List_Bullet_Image_Frame_Decorator::__construct
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$width = $style->length_in_pt($width);
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}
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$height = ($style->height > 0 ? $style->height : 0);
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if ( is_percent($height) ) {
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$t = 0.0;
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for ($f = $this->_frame->get_parent(); $f; $f = $f->get_parent()) {
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$f_style = $f->get_style();
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$t = $f_style->length_in_pt($f_style->height);
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if ($t != 0) {
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break;
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}
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}
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$height = ((float)rtrim($height,"%") * $t)/100; //maybe 0
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} elseif ( !mb_strpos($height, 'pt') ) {
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// Don't set image original size if "%" branch was 0 or size not given.
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// Otherwise aspect changed on %/auto combination for width/height
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// Resample according to px per inch
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// See also List_Bullet_Image_Frame_Decorator::__construct
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$height = $style->length_in_pt($height);
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}
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if ($width == 0 || $height == 0) {
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// Determine the image's size. Time consuming. Only when really needed!
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list($img_width, $img_height) = dompdf_getimagesize($this->_frame->get_image_url());
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// don't treat 0 as error. Can be downscaled or can be catched elsewhere if image not readable.
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// Resample according to px per inch
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// See also List_Bullet_Image_Frame_Decorator::__construct
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if ($width == 0 && $height == 0) {
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$width = (float)($img_width * 72) / DOMPDF_DPI;
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$height = (float)($img_height * 72) / DOMPDF_DPI;
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} elseif ($height == 0 && $width != 0) {
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$height = ($width / $img_width) * $img_height; //keep aspect ratio
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} elseif ($width == 0 && $height != 0) {
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$width = ($height / $img_height) * $img_width; //keep aspect ratio
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}
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}
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if (DEBUGPNG) print $width.' '.$height.';';
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$style->width = $width . "pt";
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$style->height = $height . "pt";
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return array( $width, $width, "min" => $width, "max" => $width);
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}
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}
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