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<?php |
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/** |
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* @package dompdf |
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* @link https://github.com/dompdf/dompdf |
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* @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License |
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*/ |
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namespace Dompdf\FrameDecorator; |
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|
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use Dompdf\Dompdf; |
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use Dompdf\Frame; |
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use Dompdf\Exception; |
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|
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/** |
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* Decorates Frame objects for text layout |
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* |
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* @package dompdf |
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*/ |
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class Text extends AbstractFrameDecorator |
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{ |
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/** |
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* @var float |
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*/ |
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protected $text_spacing; |
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|
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/** |
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* Text constructor. |
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* @param Frame $frame |
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* @param Dompdf $dompdf |
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* @throws Exception |
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*/ |
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function __construct(Frame $frame, Dompdf $dompdf) |
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{ |
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if (!$frame->is_text_node()) { |
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throw new Exception("Text_Decorator can only be applied to #text nodes."); |
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} |
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|
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parent::__construct($frame, $dompdf); |
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$this->text_spacing = 0.0; |
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} |
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|
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function reset() |
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{ |
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parent::reset(); |
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$this->text_spacing = 0.0; |
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} |
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|
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// Accessor methods |
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|
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/** |
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* @return float |
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*/ |
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public function get_text_spacing(): float |
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{ |
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return $this->text_spacing; |
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} |
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|
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/** |
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* @return string |
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*/ |
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function get_text() |
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{ |
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// FIXME: this should be in a child class (and is incorrect) |
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// if ( $this->_frame->get_style()->content !== "normal" ) { |
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// $this->_frame->get_node()->data = $this->_frame->get_style()->content; |
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// $this->_frame->get_style()->content = "normal"; |
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// } |
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|
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// Helpers::pre_r("---"); |
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// $style = $this->_frame->get_style(); |
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// var_dump($text = $this->_frame->get_node()->data); |
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// var_dump($asc = utf8_decode($text)); |
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// for ($i = 0; $i < strlen($asc); $i++) |
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// Helpers::pre_r("$i: " . $asc[$i] . " - " . ord($asc[$i])); |
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// Helpers::pre_r("width: " . $this->_dompdf->getFontMetrics()->getTextWidth($text, $style->font_family, $style->font_size)); |
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|
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return $this->_frame->get_node()->data; |
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} |
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|
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//........................................................................ |
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|
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/** |
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* Vertical padding, border, and margin do not apply when determining the |
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* height for inline frames. |
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* |
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* http://www.w3.org/TR/CSS21/visudet.html#inline-non-replaced |
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* |
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* The vertical padding, border and margin of an inline, non-replaced box |
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* start at the top and bottom of the content area, not the |
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* 'line-height'. But only the 'line-height' is used to calculate the |
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* height of the line box. |
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* |
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* @return float |
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*/ |
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public function get_margin_height(): float |
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{ |
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// This function is also called in add_frame_to_line() and is used to |
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// determine the line height |
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$style = $this->get_style(); |
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$font = $style->font_family; |
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$size = $style->font_size; |
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$fontHeight = $this->_dompdf->getFontMetrics()->getFontHeight($font, $size); |
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|
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return ($style->line_height / ($size > 0 ? $size : 1)) * $fontHeight; |
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} |
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|
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public function get_padding_box(): array |
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{ |
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$style = $this->_frame->get_style(); |
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$pb = $this->_frame->get_padding_box(); |
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$pb[3] = $pb["h"] = (float) $style->length_in_pt($style->height); |
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return $pb; |
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} |
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|
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/** |
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* @param float $spacing |
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*/ |
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public function set_text_spacing(float $spacing): void |
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{ |
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$this->text_spacing = $spacing; |
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$this->recalculate_width(); |
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} |
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|
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/** |
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* Recalculate the text width |
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* |
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* @return float |
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*/ |
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public function recalculate_width(): float |
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{ |
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$fontMetrics = $this->_dompdf->getFontMetrics(); |
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$style = $this->get_style(); |
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$text = $this->get_text(); |
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$font = $style->font_family; |
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$size = $style->font_size; |
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$word_spacing = $this->text_spacing + $style->word_spacing; |
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$letter_spacing = $style->letter_spacing; |
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$text_width = $fontMetrics->getTextWidth($text, $font, $size, $word_spacing, $letter_spacing); |
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|
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$style->set_used("width", $text_width); |
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return $text_width; |
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} |
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|
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// Text manipulation methods |
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|
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/** |
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* Split the text in this frame at the offset specified. The remaining |
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* text is added as a sibling frame following this one and is returned. |
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* |
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* @param int $offset |
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* @return Frame|null |
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*/ |
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function split_text($offset) |
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{ |
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if ($offset == 0) { |
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return null; |
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} |
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|
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$split = $this->_frame->get_node()->splitText($offset); |
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if ($split === false) { |
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return null; |
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} |
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|
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$deco = $this->copy($split); |
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|
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$p = $this->get_parent(); |
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$p->insert_child_after($deco, $this, false); |
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|
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if ($p instanceof Inline) { |
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$p->split($deco); |
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} |
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|
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return $deco; |
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} |
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|
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/** |
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* @param int $offset |
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* @param int $count |
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*/ |
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function delete_text($offset, $count) |
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{ |
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$this->_frame->get_node()->deleteData($offset, $count); |
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} |
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|
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/** |
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* @param string $text |
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*/ |
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function set_text($text) |
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{ |
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$this->_frame->get_node()->data = $text; |
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} |
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} |
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|
