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<?php
/**
* File containing the ezcGraphRadialGradient class
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
* @package Graph
* @version //autogentag//
* @license http://www.apache.org/licenses/LICENSE-2.0 Apache License, Version 2.0
*/
/**
* Class representing radial gradient fills. For drivers which cannot draw
* gradients it falls back to a native ezcGraphColor. In this case the start
* color of the gradient will be used.
*
* @property ezcGraphCoordinate $center
* Center point of the gradient.
* @property int $width
* Width of ellipse
* @property int $height
* Width of ellipse
* @property int $offset
* Offset for starting color
* @property ezcGraphColor $startColor
* Starting color of the gradient.
* @property ezcGraphColor $endColor
* Ending color of the gradient.
*
* @version //autogentag//
* @package Graph
*/
class ezcGraphRadialGradient extends ezcGraphColor
{
/**
* Constructor
*
* @param ezcGraphCoordinate $center
* @param mixed $width
* @param mixed $height
* @param ezcGraphColor $startColor
* @param ezcGraphColor $endColor
* @return void
*/
public function __construct( ezcGraphCoordinate $center, $width, $height, ezcGraphColor $startColor, ezcGraphColor $endColor )
{
$this->properties['center'] = $center;
$this->properties['width'] = (float) $width;
$this->properties['height'] = (float) $height;
$this->properties['offset'] = 0;
$this->properties['startColor'] = $startColor;
$this->properties['endColor'] = $endColor;
}
/**
* __set
*
* @param mixed $propertyName
* @param mixed $propertyValue
* @throws ezcBaseValueException
* If a submitted parameter was out of range or type.
* @throws ezcBasePropertyNotFoundException
* If a the value for the property options is not an instance of
* @return void
* @ignore
*/
public function __set( $propertyName, $propertyValue )
{
switch ( $propertyName )
{
case 'center':
if ( !$propertyValue instanceof ezcGraphCoordinate )
{
throw new ezcBaseValueException( $propertyName, $propertyValue, 'ezcGraphCoordinate' );
}
else
{
$this->properties['center'] = $propertyValue;
}
break;
case 'width':
if ( !is_numeric( $propertyValue ) ||
( $propertyValue <= 0 ) )
{
throw new ezcBaseValueException( $propertyName, $propertyValue, 'float > 0' );
}
$this->properties['width'] = (float) $propertyValue;
break;
case 'height':
if ( !is_numeric( $propertyValue ) ||
( $propertyValue <= 0 ) )
{
throw new ezcBaseValueException( $propertyName, $propertyValue, 'float > 0' );
}
$this->properties['height'] = (float) $propertyValue;
break;
case 'offset':
if ( !is_numeric( $propertyValue ) ||
( $propertyValue < 0 ) ||
( $propertyValue > 1 ) )
{
throw new ezcBaseValueException( $propertyName, $propertyValue, '0 <= float <= 1' );
}
$this->properties['offset'] = $propertyValue;
break;
case 'startColor':
$this->properties['startColor'] = ezcGraphColor::create( $propertyValue );
break;
case 'endColor':
$this->properties['endColor'] = ezcGraphColor::create( $propertyValue );
break;
}
}
/**
* __get
*
* @param mixed $propertyName
* @throws ezcBasePropertyNotFoundException
* If a the value for the property options is not an instance of
* @return mixed
* @ignore
*/
public function __get( $propertyName )
{
switch ( $propertyName )
{
case 'red':
case 'green':
case 'blue':
case 'alpha':
// Fallback to native color
return $this->properties['startColor']->$propertyName;
default:
if ( isset( $this->properties[$propertyName] ) )
{
return $this->properties[$propertyName];
}
else
{
throw new ezcBasePropertyNotFoundException( $propertyName );
}
}
}
/**
* Returns a unique string representation for the gradient.
*
* @access public
* @return void
*/
public function __toString()
{
return sprintf( 'RadialGradient_%d_%d_%d_%d_%.2F_%02x%02x%02x%02x_%02x%02x%02x%02x',
$this->properties['center']->x,
$this->properties['center']->y,
$this->properties['width'],
$this->properties['height'],
$this->properties['offset'],
$this->properties['startColor']->red,
$this->properties['startColor']->green,
$this->properties['startColor']->blue,
$this->properties['startColor']->alpha,
$this->properties['endColor']->red,
$this->properties['endColor']->green,
$this->properties['endColor']->blue,
$this->properties['endColor']->alpha
);
}
}
?>
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