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<?php /** * @package php-font-lib * @link https://github.com/PhenX/php-font-lib * @author Fabien Ménager <fabien.menager@gmail.com> * @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License * @version $Id: Font_Table_glyf.php 46 2012-04-02 20:22:38Z fabien.menager $ */
require_once dirname(__FILE__) . "/Font_Glyph_Outline_Component.php";
/** * Composite glyph outline * * @package php-font-lib */ class Font_Glyph_Outline_Composite extends Font_Glyph_Outline { const ARG_1_AND_2_ARE_WORDS = 0x0001; const ARGS_ARE_XY_VALUES = 0x0002; const ROUND_XY_TO_GRID = 0x0004; const WE_HAVE_A_SCALE = 0x0008; const MORE_COMPONENTS = 0x0020; const WE_HAVE_AN_X_AND_Y_SCALE = 0x0040; const WE_HAVE_A_TWO_BY_TWO = 0x0080; const WE_HAVE_INSTRUCTIONS = 0x0100; const USE_MY_METRICS = 0x0200; const OVERLAP_COMPOUND = 0x0400;
/** * @var Font_Glyph_Outline_Component[] */ public $components = array();
function getGlyphIDs(){ if (empty($this->components)) { $this->parseData(); }
$glyphIDs = array(); foreach ($this->components as $_component) { $glyphIDs[] = $_component->glyphIndex;
$_glyph = $this->table->data[$_component->glyphIndex]; $glyphIDs = array_merge($glyphIDs, $_glyph->getGlyphIDs()); }
return $glyphIDs; }
/*function parse() { //$this->parseData(); }*/
function parseData(){ parent::parseData();
$font = $this->getFont();
do { $flags = $font->readUInt16(); $glyphIndex = $font->readUInt16();
$a = 1.0; $b = 0.0; $c = 0.0; $d = 1.0; $e = 0.0; $f = 0.0;
$point_compound = null; $point_component = null;
$instructions = null;
if ($flags & self::ARG_1_AND_2_ARE_WORDS) { if ($flags & self::ARGS_ARE_XY_VALUES) { $e = $font->readInt16(); $f = $font->readInt16(); } else { $point_compound = $font->readUInt16(); $point_component = $font->readUInt16(); } } else { if ($flags & self::ARGS_ARE_XY_VALUES) { $e = $font->readInt8(); $f = $font->readInt8(); } else { $point_compound = $font->readUInt8(); $point_component = $font->readUInt8(); } }
if ($flags & self::WE_HAVE_A_SCALE) { $a = $d = $font->readInt16(); } elseif ($flags & self::WE_HAVE_AN_X_AND_Y_SCALE) { $a = $font->readInt16(); $d = $font->readInt16(); } elseif ($flags & self::WE_HAVE_A_TWO_BY_TWO) { $a = $font->readInt16(); $b = $font->readInt16(); $c = $font->readInt16(); $d = $font->readInt16(); }
//if ($flags & self::WE_HAVE_INSTRUCTIONS) { // //}
$component = new Font_Glyph_Outline_Component(); $component->flags = $flags; $component->glyphIndex = $glyphIndex; $component->a = $a; $component->b = $b; $component->c = $c; $component->d = $d; $component->e = $e; $component->f = $f; $component->point_compound = $point_compound; $component->point_component = $point_component; $component->instructions = $instructions;
$this->components[] = $component;
} while ($flags & self::MORE_COMPONENTS); }
function encode(){ $font = $this->getFont();
$gids = $font->getSubset();
$size = $font->writeInt16(-1); $size += $font->writeFWord($this->xMin); $size += $font->writeFWord($this->yMin); $size += $font->writeFWord($this->xMax); $size += $font->writeFWord($this->yMax);
foreach ($this->components as $_i => $_component) { $flags = 0; if ($_component->point_component === null && $_component->point_compound === null) { $flags |= self::ARGS_ARE_XY_VALUES;
if (abs($_component->e) > 0x7F || abs($_component->f) > 0x7F) { $flags |= self::ARG_1_AND_2_ARE_WORDS; } } elseif ($_component->point_component > 0xFF || $_component->point_compound > 0xFF) { $flags |= self::ARG_1_AND_2_ARE_WORDS; }
if ($_component->b == 0 && $_component->c == 0) { if ($_component->a == $_component->d) { if ($_component->a != 1.0) { $flags |= self::WE_HAVE_A_SCALE; } } else { $flags |= self::WE_HAVE_AN_X_AND_Y_SCALE; } } else { $flags |= self::WE_HAVE_A_TWO_BY_TWO; }
if ($_i < count($this->components)-1) { $flags |= self::MORE_COMPONENTS; }
$size += $font->writeUInt16($flags);
$new_gid = array_search($_component->glyphIndex, $gids); $size += $font->writeUInt16($new_gid);
if ($flags & self::ARG_1_AND_2_ARE_WORDS) { if ($flags & self::ARGS_ARE_XY_VALUES) { $size += $font->writeInt16($_component->e); $size += $font->writeInt16($_component->f); } else { $size += $font->writeUInt16($_component->point_compound); $size += $font->writeUInt16($_component->point_component); } } else { if ($flags & self::ARGS_ARE_XY_VALUES) { $size += $font->writeInt8($_component->e); $size += $font->writeInt8($_component->f); } else { $size += $font->writeUInt8($_component->point_compound); $size += $font->writeUInt8($_component->point_component); } }
if ($flags & self::WE_HAVE_A_SCALE) { $size += $font->writeInt16($_component->a); } elseif ($flags & self::WE_HAVE_AN_X_AND_Y_SCALE) { $size += $font->writeInt16($_component->a); $size += $font->writeInt16($_component->d); } elseif ($flags & self::WE_HAVE_A_TWO_BY_TWO) { $size += $font->writeInt16($_component->a); $size += $font->writeInt16($_component->b); $size += $font->writeInt16($_component->c); $size += $font->writeInt16($_component->d); } }
return $size; }
public function getSVGContours(){ $contours = array();
/** @var Font_Table_glyf $glyph_data */ $glyph_data = $this->getFont()->getTableObject("glyf");
/** @var Font_Glyph_Outline[] $glyphs */ $glyphs = $glyph_data->data;
foreach ($this->components as $component) { $contours[] = array( "contours" => $glyphs[$component->glyphIndex]->getSVGContours(), "transform" => $component->getMatrix(), ); }
return $contours; } }
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