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<?php
/**
* File containing the abstract ezcGraphPalette class
*
* @package Graph
* @version //autogentag//
* @copyright Copyright (C) 2005-2008 eZ systems as. All rights reserved.
* @license http://ez.no/licenses/new_bsd New BSD License
*/
/**
* Abstract class to contain pallet definitions
*
* @version //autogentag//
* @package Graph
* @mainclass
*/
abstract class ezcGraphPalette
{
/**
* Indicates which color should be used for the next dataset
*
* @var integer
*/
protected $colorIndex = -1;
/**
* Indicates which symbol should be used for the nect dataset
*
* @var integer
*/
protected $symbolIndex = -1;
/**
* Axiscolor
*
* @var ezcGraphColor
*/
protected $axisColor;
/**
* Color of grid lines
*
* @var ezcGraphColor
*/
protected $majorGridColor;
/**
* Color of minor grid lines
*
* @var ezcGraphColor
*/
protected $minorGridColor;
/**
* Array with colors for datasets
*
* @var array
*/
protected $dataSetColor;
/**
* Array with symbols for datasets
*
* @var array
*/
protected $dataSetSymbol;
/**
* Name of font to use
*
* @var string
*/
protected $fontName;
/**
* Fontcolor
*
* @var ezcGraphColor
*/
protected $fontColor;
/**
* Backgroundcolor
*
* @var ezcGraphColor
*/
protected $chartBackground;
/**
* Bordercolor the chart
*
* @var ezcGraphColor
*/
protected $chartBorderColor;
/**
* Borderwidth for the chart
*
* @var integer
* @access protected
*/
protected $chartBorderWidth = 0;
/**
* Backgroundcolor for elements
*
* @var ezcGraphColor
*/
protected $elementBackground;
/**
* Bordercolor for elements
*
* @var ezcGraphColor
*/
protected $elementBorderColor;
/**
* Borderwidth for elements
*
* @var integer
* @access protected
*/
protected $elementBorderWidth = 0;
/**
* Padding in elements
*
* @var integer
*/
protected $padding = 1;
/**
* Margin of elements
*
* @var integer
*/
protected $margin = 0;
/**
* Ensure value to be a color
*
* @param mixed $color Color to transform into a ezcGraphColor object
* @return ezcGraphColor
*/
protected function checkColor( &$color )
{
if ( $color == null )
{
return ezcGraphColor::fromHex( '#000000FF' );
}
elseif ( !( $color instanceof ezcGraphColor ) )
{
$color = ezcGraphColor::create( $color );
}
return $color;
}
/**
* Manually reset the color counter to use the first color again
*
* @access public
*/
public function resetColorCounter()
{
$this->colorIndex = -1;
$this->symbolIndex = -1;
}
/**
* Returns the requested property
*
* @param string $propertyName Name of property
* @return mixed
* @ignore
*/
public function __get( $propertyName )
{
switch ( $propertyName )
{
case 'axisColor':
case 'majorGridColor':
case 'minorGridColor':
case 'fontColor':
case 'chartBackground':
case 'chartBorderColor':
case 'elementBackground':
case 'elementBorderColor':
return ( $this->$propertyName = $this->checkColor( $this->$propertyName ) );
case 'dataSetColor':
$this->colorIndex = ( ( $this->colorIndex + 1 ) % count( $this->dataSetColor ) );
return $this->checkColor( $this->dataSetColor[ $this->colorIndex ] );
case 'dataSetSymbol':
$this->symbolIndex = ( ( $this->symbolIndex + 1 ) % count( $this->dataSetSymbol ) );
return $this->dataSetSymbol[ $this->symbolIndex ];
case 'fontName':
case 'chartBorderWidth':
case 'elementBorderWidth':
case 'padding':
case 'margin':
return $this->$propertyName;
default:
throw new ezcBasePropertyNotFoundException( $propertyName );
}
}
/**
* __set
*
* @param mixed $propertyName Property name
* @param mixed $propertyValue Property value
* @access public
* @ignore
*/
public function __set( $propertyName, $propertyValue )
{
switch ( $propertyName )
{
case 'axisColor':
case 'majorGridColor':
case 'minorGridColor':
case 'fontColor':
case 'chartBackground':
case 'chartBorderColor':
case 'elementBackground':
case 'elementBorderColor':
$this->$propertyName = ezcGraphColor::create( $propertyValue );
break;
case 'dataSetColor':
if ( !is_array( $propertyValue ) )
{
throw new ezcBaseValueException( $propertyName, $propertyValue, 'array( ezcGraphColor )' );
}
$this->dataSetColor = array();
foreach ( $propertyValue as $value )
{
$this->dataSetColor[] = ezcGraphColor::create( $value );
}
$this->colorIndex = -1;
break;
case 'dataSetSymbol':
if ( !is_array( $propertyValue ) )
{
throw new ezcBaseValueException( $propertyName, $propertyValue, 'array( (int) ezcGraph::SYMBOL_TYPE )' );
}
$this->dataSetSymbol = array();
foreach ( $propertyValue as $value )
{
$this->dataSetSymbol[] = (int) $value;
}
$this->symbolIndex = -1;
break;
case 'fontName':
$this->$propertyName = (string) $propertyValue;
break;
case 'chartBorderWidth':
case 'elementBorderWidth':
case 'padding':
case 'margin':
if ( !is_numeric( $propertyValue ) ||
( $propertyValue < 0 ) )
{
throw new ezcBaseValueException( $propertyName, $propertyValue, 'int >= 0' );
}
$this->$propertyName = (int) $propertyValue;
break;
default:
throw new ezcBasePropertyNotFoundException( $propertyName );
}
}
}
?>
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