/**
* Creates a datalist item instance based on the item type and index.
* @param integer zero-based item index
* @param TListItemType item type
* @return TControl created datalist item
*/
protected function createItem($itemIndex, $itemType)
{
$template = null;
$classPath = null;
switch ($itemType) {
case TListItemType::Item:
$classPath = $this->getItemRenderer();
$template = $this->_itemTemplate;
break;
case TListItemType::AlternatingItem:
list($classPath, $template) = $this->getAlternatingItemDisplay();
break;
case TListItemType::SelectedItem:
list($classPath, $template) = $this->getSelectedItemDisplay($itemIndex);
break;
case TListItemType::EditItem:
list($classPath, $template) = $this->getEditItemDisplay($itemIndex);
break;
case TListItemType::Header:
$classPath = $this->getHeaderRenderer();
$template = $this->_headerTemplate;
break;
case TListItemType::Footer:
$classPath = $this->getFooterRenderer();
$template = $this->_footerTemplate;
break;
case TListItemType::Separator:
$classPath = $this->getSeparatorRenderer();
$template = $this->_separatorTemplate;
break;
default:
throw new TInvalidDataValueException('datalist_itemtype_unknown', $itemType);
}
if ($classPath !== '') {
$item = Prado::createComponent($classPath);
if ($item instanceof IItemDataRenderer) {
$item->setItemIndex($itemIndex);
$item->setItemType($itemType);
}
} else {
if ($template !== null) {
$item = new TDataListItem();
$item->setItemIndex($itemIndex);
$item->setItemType($itemType);
$template->instantiateIn($item);
} else {
$item = null;
}
}
return $item;
}
/**
* Displays the data list.
* @return string the rendering result.
*/
public function render()
{
$attr = $this->renderAttributes();
if ($this->getRepeatLayout() == 'Raw') {
$content = "<span {$attr}>";
foreach ($this->getBodies() as $body) {
$content .= $body->render();
}
return $content . "</span>";
}
$count = $this->items->length();
$cols = $this->getRepeatColumns();
$rows = $count % $cols == 0 ? $count / $cols : intval($count / $cols) + 1;
$output = array();
if ($this->getRepeatDirection() === 'Vertical') {
$n = 0;
for ($j = 0; $j < $cols; ++$j) {
$r = ($count - $n) % ($cols - $j) == 0 ? ($count - $n) / ($cols - $j) : intval(($count - $n) / ($cols - $j)) + 1;
for ($i = 0; $i < $rows; ++$i) {
if ($i < $r) {
$output[$i][$j] = $n;
$n++;
} else {
$output[$i][$j] = -1;
}
}
}
} else {
for ($i = 0; $i < $rows; ++$i) {
for ($j = 0; $j < $cols; ++$j) {
$n = $i * $cols + $j;
if ($n < $count) {
$output[$i][$j] = $n;
} else {
$output[$i][$j] = -1;
}
}
}
}
$itemStyle = $this->getItemStyle();
if (strlen($itemStyle)) {
$itemStyle = ' style="' . $itemStyle . '"';
}
$altItemStyle = $this->getAlternatingItemStyle();
if (strlen($altItemStyle)) {
$altItemStyle = ' style="' . $altItemStyle . '"';
}
$separatorStyle = $this->getSeparatorStyle();
if (strlen($separatorStyle)) {
$separatorStyle = ' style="' . $separatorStyle . '"';
}
$editItemStyle = $this->getEditItemStyle();
if (strlen($editItemStyle)) {
$editItemStyle = ' style="' . $editItemStyle . '"';
}
$selectedItemStyle = $this->getSelectedItemStyle();
if (strlen($selectedItemStyle)) {
$selectedItemStyle = ' style="' . $selectedItemStyle . '"';
}
$headerStyle = $this->getHeaderStyle();
if (strlen($headerStyle)) {
$headerStyle = ' style="' . $headerStyle . '"';
}
$footerStyle = $this->getFooterStyle();
if (strlen($footerStyle)) {
$footerStyle = ' style="' . $footerStyle . '"';
}
if ($this->getRepeatLayout() === 'Table') {
if ($cols <= 1) {
$colspan = '';
} else {
if (count($seps) > 0) {
$colspan = " colspan=\"" . ($cols + $cols) . "\"";
} else {
$colspan = " colspan=\"{$cols}\"";
}
}
$content = "<table {$attr}>\n";
if ($this->header && $this->isShowHeader()) {
$a = $this->header->renderAttributes();
$content .= "<tr>\n<td{$colspan}{$headerStyle} {$a}>" . $this->header->render() . "</td></tr>\n";
}
for ($i = 0; $i < $rows; ++$i) {
$content .= "<tr>\n";
for ($j = 0; $j < $cols; ++$j) {
$index = $output[$i][$j];
if (isset($this->items[$index])) {
$item = $this->items[$index];
$type = $item->getType();
if ($type == TDataListItem::TYPE_SELECTED_ITEM) {
$style = $selectedItemStyle;
} else {
if ($type == TDataListItem::TYPE_EDIT_ITEM) {
$style = $editItemStyle;
} else {
if ($type == TDataListItem::TYPE_ITEM) {
$style = $itemStyle;
} else {
if ($type == TDataListItem::TYPE_ALTERNATING_ITEM) {
$style = $altItemStyle;
} else {
$style = '';
}
}
}
}
$a = $item->renderAttributes();
$content .= "<td{$style} {$a}>" . $item->render() . "</td>\n";
} else {
$content .= "<td> </td>\n";
}
if (isset($this->separators[$index])) {
$separator = $this->separators[$index];
$a = $separator->renderAttributes();
if ($cols > 1) {
$content .= "<td{$separatorStyle} {$a}>" . $separator->render() . "</td>\n";
} else {
$content .= "</tr>\n<tr>\n<td{$separatorStyle} {$a}>" . $separator->render() . "</td>\n";
}
}
}
$content .= "</tr>\n";
}
if ($this->footer && $this->isShowFooter()) {
$a = $this->footer->renderAttributes();
$content .= "<tr>\n<td{$colspan}{$footerStyle} {$a}>" . $this->footer->render() . "</td></tr>\n";
}
$content .= "</table>\n";
} else {
$content = "<span {$attr}>";
if ($this->header && $this->isShowHeader()) {
$a = $this->header->renderAttributes();
$content .= "<span{$headerStyle} {$a}>" . $this->header->render() . "</span><br/>\n";
}
for ($i = 0; $i < $rows; ++$i) {
for ($j = 0; $j < $cols; ++$j) {
$index = $output[$i][$j];
if (isset($this->items[$index])) {
$item = $this->items[$index];
$type = $item->getType();
if ($type == TDataListItem::TYPE_SELECTED_ITEM) {
$style = $selectedItemStyle;
} else {
if ($type == TDataListItem::TYPE_EDIT_ITEM) {
$style = $editItemStyle;
} else {
if ($type == TDataListItem::TYPE_ITEM) {
$style = $itemStyle;
} else {
if ($type == TDataListItem::TYPE_ALTERNATING_ITEM) {
$style = $altItemStyle;
} else {
$style = '';
}
}
}
}
$a = $item->renderAttributes();
$content .= "<span{$style} {$a}>" . $item->render() . "</span>\n";
}
if (isset($this->separators[$index])) {
$separator = $this->separators[$index];
$a = $separator->renderAttributes();
if ($cols > 1) {
$content .= "<span{$separatorStyle} {$a}>" . $separator->render() . "</span>";
} else {
$content .= "</span><br/>\n<span{$separatorStyle} {$a}>" . $separator->render() . "</span>";
}
}
}
$content .= "<br/>\n";
}
if ($this->footer && $this->isShowFooter()) {
$a = $this->footer->renderAttributes();
$content .= "<span{$footerStyle} {$a}>" . $this->footer->render() . "</span><br/>\n";
}
$content .= "</span>\n";
}
return $content;
}