<?php /** * TFont class file. * * @author Qiang Xue <qiang.xue@gmail.com> * @link http://www.pradosoft.com/ * @copyright Copyright © 2005 PradoSoft * @license http://www.pradosoft.com/license/ * @version $Id$ * @package System.Web.UI.WebControls */ /** * TFont class * * TFont encapsulates the CSS style fields related with font settings. * * @author Qiang Xue <qiang.xue@gmail.com> * @version $Id$ * @package System.Web.UI.WebControls * @since 3.0 */ class TFont extends TComponent { /** * Bits indicating the font states. */ const IS_BOLD=0x01; const IS_ITALIC=0x02; const IS_OVERLINE=0x04; const IS_STRIKEOUT=0x08; const IS_UNDERLINE=0x10; /** * Bits indicating whether particular font states are changed. */ const IS_SET_BOLD=0x01000; const IS_SET_ITALIC=0x02000; const IS_SET_OVERLINE=0x04000; const IS_SET_STRIKEOUT=0x08000; const IS_SET_UNDERLINE=0x10000; const IS_SET_SIZE=0x20000; const IS_SET_NAME=0x40000; /** * @var integer bits representing various states */ private $_flags=0; /** * @var string font name */ private $_name=''; /** * @var string font size */ private $_size=''; /** * @return boolean whether the font is in bold face. Defaults to false. */ public function getBold() { return ($this->_flags & self::IS_BOLD)!==0; } /** * @param boolean whether the font is in bold face */ public function setBold($value) { $this->_flags |= self::IS_SET_BOLD; if(TPropertyValue::ensureBoolean($value)) $this->_flags |= self::IS_BOLD; else $this->_flags &= ~self::IS_BOLD; } /** * @return boolean whether the font is in italic face. Defaults to false. */ public function getItalic() { return ($this->_flags & self::IS_ITALIC)!==0; } /** * @param boolean whether the font is italic */ public function setItalic($value) { $this->_flags |= self::IS_SET_ITALIC; if(TPropertyValue::ensureBoolean($value)) $this->_flags |= self::IS_ITALIC; else $this->_flags &= ~self::IS_ITALIC; } /** * @return boolean whether the font is overlined. Defaults to false. */ public function getOverline() { return ($this->_flags & self::IS_OVERLINE)!==0; } /** * @param boolean whether the font is overlined */ public function setOverline($value) { $this->_flags |= self::IS_SET_OVERLINE; if(TPropertyValue::ensureBoolean($value)) $this->_flags |= self::IS_OVERLINE; else $this->_flags &= ~self::IS_OVERLINE; } /** * @return string the font size */ public function getSize() { return $this->_size; } /** * @param string the font size */ public function setSize($value) { $this->_flags |= self::IS_SET_SIZE; $this->_size=$value; } /** * @return boolean whether the font is strikeout. Defaults to false. */ public function getStrikeout() { return ($this->_flags & self::IS_STRIKEOUT)!==0; } /** * @param boolean whether the font is strikeout */ public function setStrikeout($value) { $this->_flags |= self::IS_SET_STRIKEOUT; if(TPropertyValue::ensureBoolean($value)) $this->_flags |= self::IS_STRIKEOUT; else $this->_flags &= ~self::IS_STRIKEOUT; } /** * @return boolean whether the font is underlined. Defaults to false. */ public function getUnderline() { return ($this->_flags & self::IS_UNDERLINE)!==0; } /** * @param boolean whether the font is underlined */ public function setUnderline($value) { $this->_flags |= self::IS_SET_UNDERLINE; if(TPropertyValue::ensureBoolean($value)) $this->_flags |= self::IS_UNDERLINE; else $this->_flags &= ~self::IS_UNDERLINE; } /** * @return string the font name (family) */ public function getName() { return $this->_name; } /** * @param string the font name (family) */ public function setName($value) { $this->_flags |= self::IS_SET_NAME; $this->_name=$value; } /** * @return boolean whether the font is empty */ public function getIsEmpty() { return !$this->_flags; } /** * Clears up the font. */ public function reset() { $this->_flags=0; $this->_name=''; $this->_size=''; } /** * Merges the font with a new one. * If a font field is not set in the font, it will be overwritten with * the new one. * @param TFont the new font */ public function mergeWith($font) { if($font===null || $font->_flags===0) return; if(!($this->_flags & self::IS_SET_BOLD) && ($font->_flags & self::IS_SET_BOLD)) $this->setBold($font->getBold()); if(!($this->_flags & self::IS_SET_ITALIC) && ($font->_flags & self::IS_SET_ITALIC)) $this->setItalic($font->getItalic()); if(!($this->_flags & self::IS_SET_OVERLINE) && ($font->_flags & self::IS_SET_OVERLINE)) $this->setOverline($font->getOverline()); if(!($this->_flags & self::IS_SET_STRIKEOUT) && ($font->_flags & self::IS_SET_STRIKEOUT)) $this->setStrikeout($font->getStrikeout()); if(!($this->_flags & self::IS_SET_UNDERLINE) && ($font->_flags & self::IS_SET_UNDERLINE)) $this->setUnderline($font->getUnderline()); if(!($this->_flags & self::IS_SET_SIZE) && ($font->_flags & self::IS_SET_SIZE)) $this->setSize($font->getSize()); if(!($this->_flags & self::IS_SET_NAME) && ($font->_flags & self::IS_SET_NAME)) $this->setName($font->getName()); } /** * Copies the fields in a new font to this font. * If a font field is set in the new font, the corresponding field * in this font will be overwritten. * @param TFont the new font */ public function copyFrom($font) { if($font===null || $font->_flags===0) return; if($font->_flags & self::IS_SET_BOLD) $this->setBold($font->getBold()); if($font->_flags & self::IS_SET_ITALIC) $this->setItalic($font->getItalic()); if($font->_flags & self::IS_SET_OVERLINE) $this->setOverline($font->getOverline()); if($font->_flags & self::IS_SET_STRIKEOUT) $this->setStrikeout($font->getStrikeout()); if($font->_flags & self::IS_SET_UNDERLINE) $this->setUnderline($font->getUnderline()); if($font->_flags & self::IS_SET_SIZE) $this->setSize($font->getSize()); if($font->_flags & self::IS_SET_NAME) $this->setName($font->getName()); } /** * @return string the font in a css style string representation. */ public function toString() { if($this->_flags===0) return ''; $str=''; if($this->_flags & self::IS_SET_BOLD) $str.='font-weight:'.(($this->_flags & self::IS_BOLD)?'bold;':'normal;'); if($this->_flags & self::IS_SET_ITALIC) $str.='font-style:'.(($this->_flags & self::IS_ITALIC)?'italic;':'normal;'); $textDec=''; if($this->_flags & self::IS_UNDERLINE) $textDec.='underline'; if($this->_flags & self::IS_OVERLINE) $textDec.=' overline'; if($this->_flags & self::IS_STRIKEOUT) $textDec.=' line-through'; $textDec=ltrim($textDec); if($textDec!=='') $str.='text-decoration:'.$textDec.';'; if($this->_size!=='') $str.='font-size:'.$this->_size.';'; if($this->_name!=='') $str.='font-family:'.$this->_name.';'; return $str; } /** * Adds attributes related to CSS styles to renderer. * @param THtmlWriter the writer used for the rendering purpose */ public function addAttributesToRender($writer) { if($this->_flags===0) return; if($this->_flags & self::IS_SET_BOLD) $writer->addStyleAttribute('font-weight',(($this->_flags & self::IS_BOLD)?'bold':'normal')); if($this->_flags & self::IS_SET_ITALIC) $writer->addStyleAttribute('font-style',(($this->_flags & self::IS_ITALIC)?'italic':'normal')); $textDec=''; if($this->_flags & self::IS_UNDERLINE) $textDec.='underline'; if($this->_flags & self::IS_OVERLINE) $textDec.=' overline'; if($this->_flags & self::IS_STRIKEOUT) $textDec.=' line-through'; $textDec=ltrim($textDec); if($textDec!=='') $writer->addStyleAttribute('text-decoration',$textDec); if($this->_size!=='') $writer->addStyleAttribute('font-size',$this->_size); if($this->_name!=='') $writer->addStyleAttribute('font-family',$this->_name); } } ?>