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diff --git a/lib/prado/framework/Web/UI/ActiveControls/TActiveImage.php b/lib/prado/framework/Web/UI/ActiveControls/TActiveImage.php
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+<?php
+/**
+ * TActiveImage class file.
+ *
+ * @author Wei Zhuo <weizhuo[at]gamil[dot]com>
+ * @link https://github.com/pradosoft/prado
+ * @copyright Copyright &copy; 2005-2015 The PRADO Group
+ * @license https://github.com/pradosoft/prado/blob/master/COPYRIGHT
+ * @package System.Web.UI.ActiveControls
+ */
+
+/**
+ * TActiveImage class.
+ *
+ * TActiveImage allows the {@link setAlternateText AlternateText},
+ * {@link setImageAlign ImageAlign}, {@link setImageUrl ImageUrl},
+ * and {@link setDescriptionUrl DescriptionUrl} to be updated during
+ * a callback request.
+ *
+ * @author Wei Zhuo <weizhuo[at]gmail[dot]com>
+ * @package System.Web.UI.ActiveControls
+ * @since 3.1
+ */
+class TActiveImage extends TImage implements IActiveControl
+{
+ /**
+ * Creates a new callback control, sets the adapter to
+ * TActiveControlAdapter. If you override this class, be sure to set the
+ * adapter appropriately by, for example, by calling this constructor.
+ */
+ public function __construct()
+ {
+ parent::__construct();
+ $this->setAdapter(new TActiveControlAdapter($this));
+ }
+
+ /**
+ * @return TBaseActiveControl basic active control options.
+ */
+ public function getActiveControl()
+ {
+ return $this->getAdapter()->getBaseActiveControl();
+ }
+
+ /**
+ * Sets the alternative text to be displayed in the TImage when the image is unavailable.
+ * @param string the alternative text
+ */
+ public function setAlternateText($value)
+ {
+ parent::setAlternateText($value);
+ if($this->getActiveControl()->canUpdateClientSide())
+ $this->getPage()->getCallbackClient()->setAttribute($this, 'alt', $value);
+ }
+
+ /**
+ * Sets the alignment of the image with respective to other elements on the page.
+ * Possible values include: absbottom, absmiddle, baseline, bottom, left,
+ * middle, right, texttop, and top. If an empty string is passed in,
+ * imagealign attribute will not be rendered.
+ * @param string the alignment of the image
+ */
+ public function setImageAlign($value)
+ {
+ parent::setImageAlign($value);
+ if($this->getActiveControl()->canUpdateClientSide())
+ $this->getPage()->getCallbackClient()->setAttribute($this, 'align', $value);
+ }
+
+ /**
+ * @param string the URL of the image file
+ */
+ public function setImageUrl($value)
+ {
+ parent::setImageUrl($value);
+ if($this->getActiveControl()->canUpdateClientSide())
+ $this->getPage()->getCallbackClient()->setAttribute($this, 'src', $value);
+ }
+
+ /**
+ * @param string the URL to the long description of the image.
+ */
+ public function setDescriptionUrl($value)
+ {
+ parent::setDescriptionUrl($value);
+ if($this->getActiveControl()->canUpdateClientSide())
+ $this->getPage()->getCallbackClient()->setAttribute($this, 'longdesc', $value);
+ }
+}
+