From a9d62d90ad6b78618a8491d292d75ceced033f2b Mon Sep 17 00:00:00 2001
From: xue <>
Date: Sun, 15 Jan 2006 19:46:50 +0000
Subject: Added column components of datagrid.

---
 framework/Web/UI/WebControls/TTemplateColumn.php | 185 +++++++++++++++++++++++
 1 file changed, 185 insertions(+)
 create mode 100644 framework/Web/UI/WebControls/TTemplateColumn.php

(limited to 'framework/Web/UI/WebControls/TTemplateColumn.php')

diff --git a/framework/Web/UI/WebControls/TTemplateColumn.php b/framework/Web/UI/WebControls/TTemplateColumn.php
new file mode 100644
index 00000000..ec4f191d
--- /dev/null
+++ b/framework/Web/UI/WebControls/TTemplateColumn.php
@@ -0,0 +1,185 @@
+<?php
+/**
+ * TTemplateColumn class file
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @link http://www.pradosoft.com/
+ * @copyright Copyright &copy; 2005 PradoSoft
+ * @license http://www.pradosoft.com/license/
+ * @version $Revision: $  $Date: $
+ * @package System.Web.UI.WebControls
+ */
+
+/**
+ * TDataGridColumn class file
+ */
+Prado::using('System.Web.UI.WebControls.TDataGridColumn');
+
+/**
+ * TTemplateColumn class
+ *
+ * TTemplateColumn customizes the layout of controls in the column with templates.
+ * In particular, you can specify <b>ItemTemplate</b>, <b>EditItemTemplate</b>
+ * <b>HeaderTemplate</b> and <b>FooterTemplate</b> to customize specific
+ * type of cells in the column.
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @version $Revision: $  $Date: $
+ * @package System.Web.UI.WebControls
+ * @since 3.0
+ */
+class TTemplateColumn extends TDataGridColumn
+{
+	/**
+	 * Number of seconds that a cached template will expire after
+	 */
+	const CACHE_EXPIRY=18000;
+	/**
+	 * Various item templates
+	 * @var string
+	 */
+	private $_itemTemplate='';
+	private $_editItemTemplate='';
+	private $_headerTemplate='';
+	private $_footerTemplate='';
+	private static $_templates=array();
+
+	/**
+	 * @return string the edit item template string
+	 */
+	public function getEditItemTemplate()
+	{
+		return $this->_editItemTemplate;
+	}
+
+	/**
+	 * Sets the edit item template string
+	 * @param string the edit item template
+	 */
+	public function setEditItemTemplate($value)
+	{
+		$this->_editItemTemplate=$value;
+	}
+
+	/**
+	 * @return string the template string for the item
+	 */
+	public function getItemTemplate()
+	{
+		return $this->_itemTemplate;
+	}
+
+	/**
+	 * Sets the template string for the item
+	 * @param string the item template
+	 */
+	public function setItemTemplate($value)
+	{
+		$this->_itemTemplate=$value;
+	}
+
+	/**
+	 * @return string the header template string
+	 */
+	public function getHeaderTemplate()
+	{
+		return $this->_headerTemplate;
+	}
+
+	/**
+	 * Sets the header template.
+	 * The template will be parsed immediately.
+	 * @param string the header template
+	 */
+	public function setHeaderTemplate($value)
+	{
+		$this->_headerTemplate=$value;
+	}
+
+	/**
+	 * @return string the footer template string
+	 */
+	public function getFooterTemplate()
+	{
+		return $this->_footerTemplate;
+	}
+
+	/**
+	 * Sets the footer template.
+	 * The template will be parsed immediately.
+	 * @param string the footer template
+	 */
+	public function setFooterTemplate($value)
+	{
+		$this->_footerTemplate=$value;
+	}
+
+	/**
+	 * Initializes the specified cell to its initial values.
+	 * This method overrides the parent implementation.
+	 * It initializes the cell based on different templates
+	 * (ItemTemplate, EditItemTemplate, HeaderTemplate, FooterTemplate).
+	 * @param TTableCell the cell to be initialized.
+	 * @param integer the index to the Columns property that the cell resides in.
+	 * @param string the type of cell (Header,Footer,Item,AlternatingItem,EditItem,SelectedItem)
+	 */
+	public function initializeCell($cell,$columnIndex,$itemType)
+	{
+		parent::initializeCell($cell,$columnIndex,$itemType);
+		$tplContent='';
+		switch($itemType)
+		{
+			case 'Header':
+				$tplContent=$this->_headerTemplate;
+				break;
+			case 'Footer':
+				$tplContent=$this->_footerTemplate;
+				break;
+			case 'Item':
+			case 'AlternatingItem':
+			case 'SelectedItem':
+				$tplContent=$this->_itemTemplate;
+				break;
+			case 'EditItem':
+				$tplContent=$this->_editItemTemplate===''?$this->_itemTemplate:$this->_editItemTemplate;
+				break;
+		}
+		if($tplContent!=='')
+		{
+			$cell->setText('');
+			$cell->getControls()->clear();
+			$this->createTemplate($tplContent)->instantiateIn($cell);
+		}
+	}
+
+	/**
+	 * Parses item template.
+	 * This method uses caching technique to accelerate template parsing.
+	 * @param string template string
+	 * @return ITemplate parsed template object
+	 */
+	protected function createTemplate($str)
+	{
+		$key=md5($str);
+		if(isset(self::$_templates[$key]))
+			return self::$_templates[$key];
+		else
+		{
+			$contextPath=$this->getOwner()->getTemplateControl()->getTemplate()->getContextPath();
+			if(($cache=$this->getApplication()->getCache())!==null)
+			{
+				if(($template=$cache->get($key))===null)
+				{
+					$template=new TTemplate($str,$contextPath);
+					$cache->set($key,$template,self::CACHE_EXPIRY);
+				}
+			}
+			else
+				$template=new TTemplate($str,$contextPath);
+			self::$_templates[$key]=$template;
+			return $template;
+		}
+	}
+}
+
+?>
\ No newline at end of file
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