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<?php
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/**
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* TFont class file.
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*
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* @author Qiang Xue <qiang.xue@gmail.com>
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* @link http://www.pradosoft.com/
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* @copyright Copyright © 2005-2008 PradoSoft
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* @license http://www.pradosoft.com/license/
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* @version $Id: TFont.php 2541 2008-10-21 15:05:13Z qiang.xue $
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* @package System.Web.UI.WebControls
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*/
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/**
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* TFont class
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*
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* TFont encapsulates the CSS style fields related with font settings.
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*
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* @author Qiang Xue <qiang.xue@gmail.com>
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* @version $Id: TFont.php 2541 2008-10-21 15:05:13Z qiang.xue $
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* @package System.Web.UI.WebControls
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* @since 3.0
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*/
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class TFont extends TComponent
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{
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/**
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* Bits indicating the font states.
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*/
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const IS_BOLD=0x01;
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const IS_ITALIC=0x02;
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const IS_OVERLINE=0x04;
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const IS_STRIKEOUT=0x08;
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const IS_UNDERLINE=0x10;
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/**
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* Bits indicating whether particular font states are changed.
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*/
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const IS_SET_BOLD=0x01000;
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const IS_SET_ITALIC=0x02000;
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const IS_SET_OVERLINE=0x04000;
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const IS_SET_STRIKEOUT=0x08000;
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const IS_SET_UNDERLINE=0x10000;
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const IS_SET_SIZE=0x20000;
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const IS_SET_NAME=0x40000;
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/**
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* @var integer bits representing various states
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*/
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private $_flags=0;
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/**
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* @var string font name
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*/
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private $_name='';
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/**
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* @var string font size
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*/
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private $_size='';
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/**
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* @return boolean whether the font is in bold face. Defaults to false.
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*/
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public function getBold()
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{
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return ($this->_flags & self::IS_BOLD)!==0;
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}
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/**
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* @param boolean whether the font is in bold face
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*/
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public function setBold($value)
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{
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$this->_flags |= self::IS_SET_BOLD;
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if(TPropertyValue::ensureBoolean($value))
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$this->_flags |= self::IS_BOLD;
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else
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$this->_flags &= ~self::IS_BOLD;
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}
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/**
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* @return boolean whether the font is in italic face. Defaults to false.
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*/
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public function getItalic()
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{
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return ($this->_flags & self::IS_ITALIC)!==0;
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}
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/**
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* @param boolean whether the font is italic
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*/
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public function setItalic($value)
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{
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$this->_flags |= self::IS_SET_ITALIC;
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if(TPropertyValue::ensureBoolean($value))
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$this->_flags |= self::IS_ITALIC;
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else
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$this->_flags &= ~self::IS_ITALIC;
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}
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/**
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* @return boolean whether the font is overlined. Defaults to false.
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*/
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public function getOverline()
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{
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return ($this->_flags & self::IS_OVERLINE)!==0;
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}
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/**
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* @param boolean whether the font is overlined
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*/
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public function setOverline($value)
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{
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$this->_flags |= self::IS_SET_OVERLINE;
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if(TPropertyValue::ensureBoolean($value))
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$this->_flags |= self::IS_OVERLINE;
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else
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$this->_flags &= ~self::IS_OVERLINE;
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}
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/**
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* @return string the font size
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*/
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public function getSize()
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{
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return $this->_size;
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}
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/**
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* @param string the font size
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*/
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public function setSize($value)
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{
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$this->_flags |= self::IS_SET_SIZE;
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$this->_size=$value;
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}
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/**
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* @return boolean whether the font is strikeout. Defaults to false.
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*/
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public function getStrikeout()
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{
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return ($this->_flags & self::IS_STRIKEOUT)!==0;
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}
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/**
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* @param boolean whether the font is strikeout
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*/
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public function setStrikeout($value)
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{
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$this->_flags |= self::IS_SET_STRIKEOUT;
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if(TPropertyValue::ensureBoolean($value))
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$this->_flags |= self::IS_STRIKEOUT;
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else
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$this->_flags &= ~self::IS_STRIKEOUT;
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}
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/**
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* @return boolean whether the font is underlined. Defaults to false.
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*/
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public function getUnderline()
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{
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return ($this->_flags & self::IS_UNDERLINE)!==0;
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}
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/**
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* @param boolean whether the font is underlined
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*/
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public function setUnderline($value)
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{
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$this->_flags |= self::IS_SET_UNDERLINE;
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if(TPropertyValue::ensureBoolean($value))
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$this->_flags |= self::IS_UNDERLINE;
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else
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$this->_flags &= ~self::IS_UNDERLINE;
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}
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/**
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* @return string the font name (family)
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*/
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public function getName()
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{
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return $this->_name;
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}
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/**
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* @param string the font name (family)
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*/
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public function setName($value)
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{
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$this->_flags |= self::IS_SET_NAME;
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$this->_name=$value;
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}
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/**
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* @return boolean whether the font is empty
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*/
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public function getIsEmpty()
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{
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return !$this->_flags;
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}
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/**
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* Clears up the font.
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*/
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public function reset()
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{
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$this->_flags=0;
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$this->_name='';
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$this->_size='';
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}
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/**
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* Merges the font with a new one.
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* If a font field is not set in the font, it will be overwritten with
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* the new one.
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* @param TFont the new font
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*/
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public function mergeWith($font)
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{
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if($font===null || $font->_flags===0)
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return;
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if(!($this->_flags & self::IS_SET_BOLD) && ($font->_flags & self::IS_SET_BOLD))
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$this->setBold($font->getBold());
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if(!($this->_flags & self::IS_SET_ITALIC) && ($font->_flags & self::IS_SET_ITALIC))
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$this->setItalic($font->getItalic());
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if(!($this->_flags & self::IS_SET_OVERLINE) && ($font->_flags & self::IS_SET_OVERLINE))
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$this->setOverline($font->getOverline());
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if(!($this->_flags & self::IS_SET_STRIKEOUT) && ($font->_flags & self::IS_SET_STRIKEOUT))
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$this->setStrikeout($font->getStrikeout());
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if(!($this->_flags & self::IS_SET_UNDERLINE) && ($font->_flags & self::IS_SET_UNDERLINE))
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$this->setUnderline($font->getUnderline());
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if(!($this->_flags & self::IS_SET_SIZE) && ($font->_flags & self::IS_SET_SIZE))
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$this->setSize($font->getSize());
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if(!($this->_flags & self::IS_SET_NAME) && ($font->_flags & self::IS_SET_NAME))
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$this->setName($font->getName());
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}
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/**
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* Copies the fields in a new font to this font.
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* If a font field is set in the new font, the corresponding field
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* in this font will be overwritten.
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* @param TFont the new font
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*/
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public function copyFrom($font)
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{
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if($font===null || $font->_flags===0)
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return;
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if($font->_flags & self::IS_SET_BOLD)
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$this->setBold($font->getBold());
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if($font->_flags & self::IS_SET_ITALIC)
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$this->setItalic($font->getItalic());
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if($font->_flags & self::IS_SET_OVERLINE)
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$this->setOverline($font->getOverline());
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if($font->_flags & self::IS_SET_STRIKEOUT)
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$this->setStrikeout($font->getStrikeout());
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if($font->_flags & self::IS_SET_UNDERLINE)
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$this->setUnderline($font->getUnderline());
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if($font->_flags & self::IS_SET_SIZE)
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$this->setSize($font->getSize());
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if($font->_flags & self::IS_SET_NAME)
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$this->setName($font->getName());
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}
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/**
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* @return string the font in a css style string representation.
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*/
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public function toString()
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{
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if($this->_flags===0)
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return '';
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$str='';
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if($this->_flags & self::IS_SET_BOLD)
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$str.='font-weight:'.(($this->_flags & self::IS_BOLD)?'bold;':'normal;');
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if($this->_flags & self::IS_SET_ITALIC)
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$str.='font-style:'.(($this->_flags & self::IS_ITALIC)?'italic;':'normal;');
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$textDec='';
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if($this->_flags & self::IS_UNDERLINE)
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$textDec.='underline';
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if($this->_flags & self::IS_OVERLINE)
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$textDec.=' overline';
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if($this->_flags & self::IS_STRIKEOUT)
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$textDec.=' line-through';
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$textDec=ltrim($textDec);
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if($textDec!=='')
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$str.='text-decoration:'.$textDec.';';
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if($this->_size!=='')
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$str.='font-size:'.$this->_size.';';
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if($this->_name!=='')
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$str.='font-family:'.$this->_name.';';
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return $str;
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}
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/**
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* Adds attributes related to CSS styles to renderer.
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* @param THtmlWriter the writer used for the rendering purpose
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*/
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public function addAttributesToRender($writer)
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{
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if($this->_flags===0)
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return;
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if($this->_flags & self::IS_SET_BOLD)
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$writer->addStyleAttribute('font-weight',(($this->_flags & self::IS_BOLD)?'bold':'normal'));
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if($this->_flags & self::IS_SET_ITALIC)
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$writer->addStyleAttribute('font-style',(($this->_flags & self::IS_ITALIC)?'italic':'normal'));
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$textDec='';
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if($this->_flags & self::IS_UNDERLINE)
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$textDec.='underline';
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if($this->_flags & self::IS_OVERLINE)
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$textDec.=' overline';
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if($this->_flags & self::IS_STRIKEOUT)
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$textDec.=' line-through';
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$textDec=ltrim($textDec);
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if($textDec!=='')
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$writer->addStyleAttribute('text-decoration',$textDec);
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if($this->_size!=='')
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$writer->addStyleAttribute('font-size',$this->_size);
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if($this->_name!=='')
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$writer->addStyleAttribute('font-family',$this->_name);
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}
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}
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