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