diff options
| author | xue <> | 2005-11-10 12:47:19 +0000 |
|---|---|---|
| committer | xue <> | 2005-11-10 12:47:19 +0000 |
| commit | 55c4ac1bfe565f1ca7f537fdd8b7a201be28e581 (patch) | |
| tree | a0599d5e36fdbb3f1e169ae56bab7d529597e3eb /framework/Web/UI/WebControls/TLabel.php | |
Initial import of prado framework
Diffstat (limited to 'framework/Web/UI/WebControls/TLabel.php')
| -rw-r--r-- | framework/Web/UI/WebControls/TLabel.php | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/framework/Web/UI/WebControls/TLabel.php b/framework/Web/UI/WebControls/TLabel.php new file mode 100644 index 00000000..464a4cd7 --- /dev/null +++ b/framework/Web/UI/WebControls/TLabel.php @@ -0,0 +1,106 @@ +<?php
+/**
+ * TLabel class file.
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @link http://www.xisc.com/
+ * @copyright Copyright © 2004-2005, Qiang Xue
+ * @license http://www.opensource.org/licenses/bsd-license.php BSD License
+ * @version $Revision: $ $Date: $
+ * @package System.Web.UI.WebControls
+ */
+
+/**
+ * TLabel class
+ *
+ * TLabel represents a label control that displays text on a Web pagge.
+ * Use <b>Text</b> property to set the text to be displayed.
+ * TLabel will render the contents enclosed within its component tag
+ * if <b>Text</b> is empty.
+ * To use TLabel as a form label, associate it with a control by setting the
+ * <b>AssociateControlID</b> property. The associated control must be locatable
+ * within the label's naming container.
+ *
+ * Note, <b>Text</b> will NOT be encoded for rendering.
+ * Make usre it does not contain dangerous characters that you want to avoid.
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @version $Revision: $ $Date: $
+ * @package System.Web.UI.WebControls
+ * @since 3.0
+ */
+class TLabel extends TWebControl
+{
+ /**
+ * @return string tag name of the label, returns 'label' if there is an associated control, 'span' otherwise.
+ */
+ protected function getTagName()
+ {
+ return ($this->getAssociatedControlID()==='')?'span':'label';
+ }
+
+ /**
+ * Adds attributes to renderer.
+ * @param THtmlTextWriter the renderer
+ * @throws TInvalidDataValueException if associated control cannot be found using the ID
+ */
+ protected function addAttributesToRender($writer)
+ {
+ if(($aid=$this->getAssociatedControlID())!=='')
+ {
+ if($control=$this->findControl($aid))
+ $writer->addAttribute('for',$control->getClientID());
+ else
+ throw new TInvalidDataValueException('control_not_found',$aid);
+ }
+ parent::addAttributesToRender($writer);
+ }
+
+ /**
+ * Renders the body content of the label.
+ * @param THtmlTextWriter the renderer
+ */
+ protected function renderContents($writer)
+ {
+ if(($text=$this->getText())==='')
+ parent::renderContents($writer);
+ else
+ $writer->write($text);
+ }
+
+ /**
+ * @return string the text value of the label
+ */
+ public function getText()
+ {
+ return $this->getViewState('Text','');
+ }
+
+ /**
+ * @param string the text value of the label
+ */
+ public function setText($value)
+ {
+ $this->setViewState('Text',$value,'');
+ }
+
+ /**
+ * @return string the associated control ID
+ */
+ public function getAssociatedControlID()
+ {
+ return $this->getViewState('AssociatedControlID','');
+ }
+
+ /**
+ * Sets the ID of the control that the label is associated with.
+ * The control must be locatable via {@link TControl::findControl} using the ID.
+ * @param string the associated control ID
+ */
+ public function setAssociatedControlID($value)
+ {
+ $this->setViewState('AssociatedControlID',$value,'');
+ }
+}
+
+?>
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