Subversion-Projekte lars-tiefland.prado

<?php
/**
 * TWizardNavigationButtonStyle class file.
 *
 * @author Qiang Xue <qiang.xue@gmail.com>
 * @link http://www.pradosoft.com/
 * @copyright Copyright &copy; 2005-2008 PradoSoft
 * @license http://www.pradosoft.com/license/
 * @version $Id $
 * @package System.Web.UI.WebControls
 */

/**
 * Includes TStyle class file
 */
Prado::using('System.Web.UI.WebControls.TStyle');

/**
 * TWizardNavigationButtonStyle class.
 * TWizardNavigationButtonStyle defines the style applied to a wizard navigation button.
 * The button type can be specified via {@link setButtonType ButtonType}, which
 * can be 'Button', 'Image' or 'Link'.
 * If the button is an image button, {@link setImageUrl ImageUrl} will be
 * used to load the image for the button.
 * Otherwise, {@link setButtonText ButtonText} will be displayed as the button caption.
 *
 * @author Qiang Xue <qiang.xue@gmail.com>
 * @version $Id: TWizardNavigationButtonStyle.php 2541 2008-10-21 15:05:13Z qiang.xue $
 * @package System.Web.UI.WebControls
 * @since 3.0
 */
class TWizardNavigationButtonStyle extends TStyle
{
        private $_imageUrl=null;
        private $_buttonText=null;
        private $_buttonType=null;

        /**
         * Sets the style attributes to default values.
         * This method overrides the parent implementation by
         * resetting additional TWizardNavigationButtonStyle specific attributes.
         */
        public function reset()
        {
                parent::reset();
                $this->_imageUrl=null;
                $this->_buttonText=null;
                $this->_buttonType=null;
        }

        /**
         * Copies the fields in a new style to this style.
         * If a style field is set in the new style, the corresponding field
         * in this style will be overwritten.
         * @param TStyle the new style
         */
        public function copyFrom($style)
        {
                parent::copyFrom($style);
                if($style instanceof TWizardNavigationButtonStyle)
                {
                        if($this->_imageUrl===null && $style->_imageUrl!==null)
                                $this->_imageUrl=$style->_imageUrl;
                        if($this->_buttonText===null && $style->_buttonText!==null)
                                $this->_buttonText=$style->_buttonText;
                        if($this->_buttonType===null && $style->_buttonType!==null)
                                $this->_buttonType=$style->_buttonType;
                }
        }

        /**
         * Merges the style with a new one.
         * If a style field is not set in this style, it will be overwritten by
         * the new one.
         * @param TStyle the new style
         */
        public function mergeWith($style)
        {
                parent::mergeWith($style);
                if($style instanceof TWizardNavigationButtonStyle)
                {
                        if($style->_imageUrl!==null)
                                $this->_imageUrl=$style->_imageUrl;
                        if($style->_buttonText!==null)
                                $this->_buttonText=$style->_buttonText;
                        if($style->_buttonType!==null)
                                $this->_buttonType=$style->_buttonType;
                }
        }

        /**
         * @return string image URL for the image button
         */
        public function getImageUrl()
        {
                return $this->_imageUrl===null?'':$this->_imageUrl;
        }

        /**
         * @param string image URL for the image button
         */
        public function setImageUrl($value)
        {
                $this->_imageUrl=$value;
        }

        /**
         * @return string button caption
         */
        public function getButtonText()
        {
                return $this->_buttonText===null?'':$this->_buttonText;
        }

        /**
         * @param string button caption
         */
        public function setButtonText($value)
        {
                $this->_buttonText=$value;
        }

        /**
         * @return TWizardNavigationButtonType button type. Default to TWizardNavigationButtonType::Button.
         */
        public function getButtonType()
        {
                return $this->_buttonType===null? TWizardNavigationButtonType::Button :$this->_buttonType;
        }

        /**
         * @param TWizardNavigationButtonType button type.
         */
        public function setButtonType($value)
        {
                $this->_buttonType=TPropertyValue::ensureEnum($value,'TWizardNavigationButtonType');
        }

        /**
         * Applies this style to the specified button
         * @param mixed button to be applied with this style
         */
        public function apply($button)
        {
                if($button instanceof TImageButton)
                {
                        if($button->getImageUrl()==='')
                                $button->setImageUrl($this->getImageUrl());
                }
                if($button->getText()==='')
                        $button->setText($this->getButtonText());
                $button->getStyle()->mergeWith($this);
        }
}