Added DummyDataSource. TDataGrid completed (tests pending).

4 files changed, 339 insertions, 29 deletions

diff --git a/framework/Collections/TDummyDataSource.php b/framework/Collections/TDummyDataSource.php
new file mode 100644
index 00000000..74f5f667
--- /dev/null
+++ b/framework/Collections/TDummyDataSource.php
@@ -0,0 +1,131 @@
+<?php

+/**

+ * TDummyDataSource, TDummyDataSourceIterator classes

+ *

+ * @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.Collections

+ */

+

+/**

+ * TDummyDataSource class

+ *

+ * TDummyDataSource implements a dummy data collection with a specified number

+ * of dummy data items. You can traverse it using <b>foreach</b>

+ * PHP statement like the following,

+ * <code>

+ * foreach($dummyDataSource as $dataItem)

+ * </code>

+ *

+ * @author Qiang Xue <qiang.xue@gmail.com>

+ * @version $Revision: $  $Date: $

+ * @package System.Collections

+ * @since 3.0

+ */

+class TDummyDataSource extends TComponent implements IteratorAggregate

+{

+	private $_count;

+

+	public function __construct($count)

+	{

+		$this->_count=$count;

+	}

+

+	public function getCount()

+	{

+		return $this->_count;

+	}

+

+	/**

+	 * @return Iterator iterator

+	 */

+	public function getIterator()

+	{

+		return new TDummyDataSourceIterator($this->_count);

+	}

+}

+

+/**

+ * TDummyDataSourceIterator class

+ *

+ * TDummyDataSourceIterator implements Iterator interface.

+ *

+ * TDummyDataSourceIterator is used by {@link TDummyDataSource}.

+ * It allows TDummyDataSource to return a new iterator

+ * for traversing its dummy items.

+ *

+ * @author Qiang Xue <qiang.xue@gmail.com>

+ * @version $Revision: $  $Date: $

+ * @package System.Collections

+ * @since 3.0

+ */

+class TDummyDataSourceIterator implements Iterator

+{

+	private $_index;

+	private $_count;

+

+	/**

+	 * Constructor.

+	 * @param TList the data to be iterated through

+	 * @param integer start index

+	 * @param integer number of items to be iterated through

+	 */

+	public function __construct($count)

+	{

+		$this->_count=$count;

+		$this->_index=0;

+	}

+

+	/**

+	 * Rewinds internal array pointer.

+	 * This method is required by the interface Iterator.

+	 */

+	public function rewind()

+	{

+		$this->_index=0;

+	}

+

+	/**

+	 * Returns the key of the current array item.

+	 * This method is required by the interface Iterator.

+	 * @return integer the key of the current array item

+	 */

+	public function key()

+	{

+		return $this->_index;

+	}

+

+	/**

+	 * Returns the current array item.

+	 * This method is required by the interface Iterator.

+	 * @return mixed the current array item

+	 */

+	public function current()

+	{

+		return null;

+	}

+

+	/**

+	 * Moves the internal pointer to the next array item.

+	 * This method is required by the interface Iterator.

+	 */

+	public function next()

+	{

+		$this->_index++;

+	}

+

+	/**

+	 * Returns whether there is an item at current position.

+	 * This method is required by the interface Iterator.

+	 * @return boolean

+	 */

+	public function valid()

+	{

+		return $this->_index<$this->_count;

+	}

+}

+

+?>
\ No newline at end of file
diff --git a/framework/Collections/TPagedDataSource.php b/framework/Collections/TPagedDataSource.php
index 71e7c9e6..02c15b64 100644
--- a/framework/Collections/TPagedDataSource.php
+++ b/framework/Collections/TPagedDataSource.php
@@ -1,5 +1,33 @@
 <?php

+/**

+ * TPagedDataSource, TPagedListIterator, TPagedMapIterator classes

+ *

+ * @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.Collections

+ */

 

+/**

+ * TPagedDataSource class

+ *

+ * TPagedDataSource implements an integer-indexed collection class with paging functionality.

+ *

+ * Data items in TPagedDataSource can be traversed using <b>foreach</b>

+ * PHP statement like the following,

+ * <code>

+ * foreach($pagedDataSource as $dataItem)

+ * </code>

+ * The data are fetched from {@link setDataSource DataSource}. Only the items

+ * within the specified page will be returned and traversed.

+ *

+ * @author Qiang Xue <qiang.xue@gmail.com>

+ * @version $Revision: $  $Date: $

+ * @package System.Collections

+ * @since 3.0

+ */

 class TPagedDataSource extends TComponent implements IteratorAggregate

 {

 	/**

@@ -214,6 +242,9 @@ class TPagedDataSource extends TComponent implements IteratorAggregate
 			return $this->_dataSource->getCount();

 	}

 

+	/**

+	 * @return Iterator iterator

+	 */

 	public function getIterator()

 	{

 		if($this->_dataSource instanceof TList)

@@ -228,12 +259,12 @@ class TPagedDataSource extends TComponent implements IteratorAggregate
 

 

 /**

- * TListIterator class

+ * TPagedListIterator class

  *

- * TListIterator implements Iterator interface.

+ * TPagedListIterator implements Iterator interface.

  *

- * TListIterator is used by TList. It allows TList to return a new iterator

- * for traversing the items in the list.

+ * TPagedListIterator is used by {@link TPagedDataSource}. It allows TPagedDataSource

+ * to return a new iterator for traversing the items in a {@link TList} object.

  *

  * @author Qiang Xue <qiang.xue@gmail.com>

  * @version $Revision: $  $Date: $

@@ -249,7 +280,9 @@ class TPagedListIterator implements Iterator
 

 	/**

 	 * Constructor.

-	 * @param array the data to be iterated through

+	 * @param TList the data to be iterated through

+	 * @param integer start index

+	 * @param integer number of items to be iterated through

 	 */

 	public function __construct(TList $list,$startIndex,$count)

 	{

@@ -311,6 +344,19 @@ class TPagedListIterator implements Iterator
 	}

 }

 

+/**

+ * TPagedMapIterator class

+ *

+ * TPagedMapIterator implements Iterator interface.

+ *

+ * TPagedMapIterator is used by {@link TPagedDataSource}. It allows TPagedDataSource

+ * to return a new iterator for traversing the items in a {@link TMap} object.

+ *

+ * @author Qiang Xue <qiang.xue@gmail.com>

+ * @version $Revision: $  $Date: $

+ * @package System.Collections

+ * @since 3.0

+ */

 class TPagedMapIterator implements Iterator

 {

 	private $_map;

diff --git a/framework/Web/UI/TForm.php b/framework/Web/UI/TForm.php
index 4cb97911..7155627a 100644
--- a/framework/Web/UI/TForm.php
+++ b/framework/Web/UI/TForm.php
@@ -11,13 +11,10 @@ class TForm extends TControl
 	protected function addAttributesToRender($writer)

 	{

 		$attributes=$this->getAttributes();

-//		$writer->addAttribute('name',$this->getName());

 		$writer->addAttribute('method',$this->getMethod());

 		$writer->addAttribute('action',$this->getRequest()->getRequestURI());

 		if(($enctype=$this->getEnctype())!=='')

 			$writer->addAttribute('enctype',$enctype);

-		$attributes->remove('name');

-		$attributes->remove('method');

 		$attributes->remove('action');

 

 		$page=$this->getPage();

@@ -35,6 +32,7 @@ class TForm extends TControl
 		}*/

 		if($this->getDefaultButton()!=='')

 		{//todo

+		/*

 			$control=$this->findControl($this->getDefaultButton());

 			if(!$control)

 				$control=$page->findControl($this->getDefaultButton());

@@ -42,6 +40,7 @@ class TForm extends TControl
 				$page->getClientScript()->registerDefaultButtonScript($control,$writer,false);

 			else

 				throw new Exception('Only IButtonControl can be default button.');

+				*/

 		}

 		$writer->addAttribute('id',$this->getClientID());

 		foreach($attributes as $name=>$value)

@@ -101,7 +100,7 @@ class TForm extends TControl
 	{

 		$this->setViewState('Enctype',$value,'');

 	}

-

+/*

 	public function getSubmitDisabledControls()

 	{

 		return $this->getViewState('SubmitDisabledControls',false);

@@ -111,7 +110,7 @@ class TForm extends TControl
 	{

 		$this->setViewState('SubmitDisabledControls',TPropertyValue::ensureBoolean($value),false);

 	}

-

+*/

 	public function getName()

 	{

 		return $this->getUniqueID();

diff --git a/framework/Web/UI/WebControls/TDataGrid.php b/framework/Web/UI/WebControls/TDataGrid.php
index f25f8036..1042ba84 100644
--- a/framework/Web/UI/WebControls/TDataGrid.php
+++ b/framework/Web/UI/WebControls/TDataGrid.php
@@ -12,6 +12,7 @@
 

 Prado::using('System.Web.UI.WebControls.TBaseDataList');

 Prado::using('System.Collections.TPagedDataSource');

+Prado::using('System.Collections.TDummyDataSource');

 Prado::using('System.Web.UI.WebControls.TTable');

 

 /**

@@ -725,6 +726,15 @@ class TDataGrid extends TBaseDataList
 			$this->setViewState('ItemCount',$this->_items->getCount(),0);

 		else

 			$this->clearViewState('ItemCount');

+		if($this->_autoColumns)

+		{

+			$state=array();

+			foreach($this->_autoColumns as $column)

+				$state[]=$column->saveState();

+			$this->setViewState('ColumnState',$state,array());

+		}

+		else

+			$this->clearViewState('ColumnState');

 	}

 

 	/**

@@ -735,7 +745,17 @@ class TDataGrid extends TBaseDataList
 	protected function onLoadState($param)

 	{

 		if(!$this->getIsDataBound())

-			$this->restoreItemsFromViewState();

+		{

+			$state=$this->getViewState('ColumnState',array());

+			$columns=$this->getAutoColumns();

+			foreach($state as $st)

+			{

+				$column=new TBoundColumn;

+				$column->loadState($st);

+				$columns->add($column);

+			}

+			$this->restoreGridFromViewState();

+		}

 		$this->clearViewState('ItemCount');

 	}

 

@@ -764,21 +784,28 @@ class TDataGrid extends TBaseDataList
 	protected function restoreGridFromViewState()

 	{

 		$this->reset();

+		if(($itemCount=$this->getViewState('ItemCount',0))<=0)

+			return;

 		$this->_pagedDataSource=$ds=$this->createPagedDataSource();

-		// set dummy data source

-		// create columns from viewstate

+		if($ds->getAllowCustomPaging())

+			$ds->setDataSource(new TDummyDataSource($itemCount));

+		else

+			$ds->setDataSource(new TDummyDataSource($this->getViewState('DataSourceCount',0));

+

+		$columns=new TList($this->getColumns());

+		$columns->mergeWith($this->_autoColumns);

+

 		if($columns->getCount()>0)

 		{

 			foreach($columns as $column)

 				$column->initialize();

-			$allowPaging=$ds->getAllowPaging();

 			if($allowPaging)

-				// create pager

-			// create header

-			// may need to use the first row of data to build items here

+				$this->createPager(-1,-1,$columnCount,$ds);

+			$this->createItemInternal(-1,-1,'Header',false,null,$columns);

 			$selectedIndex=$this->getSelectedItemIndex();

 			$editIndex=$this->getEditItemIndex();

 			$index=0;

+			$dsIndex=$ds->getAllowPaging()?$ds->getFirstIndexInPage():0;

 			foreach($ds as $data)

 			{

 				if($index===$editIndex)

@@ -789,11 +816,13 @@ class TDataGrid extends TBaseDataList
 					$itemType='AlternatingItem';

 				else

 					$itemType='Item';

-				// create item

+				$items->add($this->createItemInternal($index,$dsIndex,$itemType,false,null,$columns));

 				$index++;

+				$dsIndex++;

 			}

-			// create footer

-			// create pager

+			$this->createItemInternal(-1,-1,'Footer',false,null,$columns);

+			if($allowPaging)

+				$this->createPager(-1,-1,$columnCount,$ds);

 		}

 		$this->_pagedDataSource=null;

 	}

@@ -815,7 +844,11 @@ class TDataGrid extends TBaseDataList
 		$allowPaging=$ds->getAllowPaging();

 		if($allowPaging && $ds->getCurrentPageIndex()>=$ds->getPageCount())

 			throw new TInvalidDataValueException('datagrid_currentpageindex_invalid');

-		$columns=$this->getAllColumns($ds);

+		// get all columns

+		$columns=new TList($this->getColumns());

+		$autoColumns=$this->createAutoColumns($ds);

+		$columns->mergeWith($autoColumns);

+

 		$items=$this->getItems();

 

 		if(($columnCount=$columns->getCount())>0)

@@ -1046,16 +1079,9 @@ class TDataGrid extends TBaseDataList
 		}

 	}

 

-	protected function getAllColumns($dataSource)

-	{

-		$list=new TList($this->getColumns());

-		$list->mergeWith($this->createAutoColumns($dataSource));

-		return $list;

-	}

-

 	protected function createAutoColumns($dataSource)

 	{

-		if(!$dataSource || $dataSource->getCount()<=0)

+		if(!$dataSource)

 			return null;

 		$autoColumns=$this->getAutoColumns();

 		$autoColumns->clear();

@@ -1085,6 +1111,114 @@ class TDataGrid extends TBaseDataList
 		}

 		return $autoColumns;

 	}

+

+	/**

+	 * Applies styles to items, header, footer and separators.

+	 * Item styles are applied in a hierarchical way. Style in higher hierarchy

+	 * will inherit from styles in lower hierarchy.

+	 * Starting from the lowest hierarchy, the item styles include

+	 * item's own style, {@link getItemStyle ItemStyle}, {@link getAlternatingItemStyle AlternatingItemStyle},

+	 * {@link getSelectedItemStyle SelectedItemStyle}, and {@link getEditItemStyle EditItemStyle}.

+	 * Therefore, if background color is set as red in {@link getItemStyle ItemStyle},

+	 * {@link getEditItemStyle EditItemStyle} will also have red background color

+	 * unless it is set to a different value explicitly.

+	 */

+	protected function applyItemStyles()

+	{

+		$headerStyle=$this->getViewState('HeaderStyle',null);

+		$footerStyle=$this->getViewState('FooterStyle',null);

+		$pagerStyle=$this->getViewState('PagerStyle',null);

+		$separatorStyle=$this->getViewState('SeparatorStyle',null);

+		$itemStyle=$this->getViewState('ItemStyle',null);

+		$alternatingItemStyle=$this->getViewState('AlternatingItemStyle',null);

+		if($itemStyle!==null)

+		{

+			if($alternatingItemStyle===null)

+				$alternatingItemStyle=new TTableItemStyle;

+			$alternatingItemStyle->mergeWith($itemStyle);

+		}

+		$selectedItemStyle=$this->getViewState('SelectedItemStyle',null);

+		if($alternatingItemStyle!==null)

+		{

+			if($selectedItemStyle===null)

+				$selectedItemStyle=new TTableItemStyle;

+			$selectedItemStyle->mergeWith($alternatingItemStyle);

+		}

+		$editItemStyle=$this->getViewState('EditItemStyle',null);

+		if($selectedItemStyle!==null)

+		{

+			if($editItemStyle===null)

+				$editItemStyle=new TTableItemStyle;

+			$editItemStyle->mergeWith($selectedItemStyle);

+		}

+

+		foreach($this->getControls() as $index=>$control)

+		{

+			switch($control->getItemType())

+			{

+				case 'Header':

+					if($headerStyle)

+						$control->getStyle()->mergeWith($headerStyle);

+					if(!$this->getShowHeader())

+						$control->setVisible(false);

+					break;

+				case 'Footer':

+					if($footerStyle)

+						$control->getStyle()->mergeWith($footerStyle);

+					if(!$this->getShowFooter())

+						$control->setVisible(false);

+					break;

+				case 'Separator':

+					if($separatorStyle)

+						$control->getStyle()->mergeWith($separatorStyle);

+					break;

+				case 'Item':

+					if($itemStyle)

+						$control->getStyle()->mergeWith($itemStyle);

+					break;

+				case 'AlternatingItem':

+					if($alternatingItemStyle)

+						$control->getStyle()->mergeWith($alternatingItemStyle);

+					break;

+				case 'SelectedItem':

+					if($selectedItemStyle)

+						$control->getStyle()->mergeWith($selectedItemStyle);

+					break;

+				case 'EditItem':

+					if($editItemStyle)

+						$control->getStyle()->mergeWith($editItemStyle);

+					break;

+				case 'Pager':

+					if($pagerStyle)

+					{

+						$control->getStyle()->mergeWith($pagerStyle);

+						$mode=$pagerStyle->getMode();

+						if($index===0)

+						{

+							if($mode==='Bottom')

+								$control->setVisible(false);

+						}

+						else

+						{

+							if($mode==='Top')

+								$control->setVisible(false);

+						}

+					}

+					break;

+				default:

+					break;

+			}

+		}

+	}

+

+	protected function renderContents($writer)

+	{

+		if($this->getHasControls())

+		{

+			$this->applyItemStyles();

+			parent::renderContents($writer);

+		}

+	}

 }

 

 /**