/**
* Render the grid into a valid XHTML snippet.
*
* \return
* XHTML string that can be used directly for output
*/
function render()
{
/* Create the table */
$table = new AnewtXHTMLTable();
$table->set_class('grid');
$extra_class = $this->_get('class');
if (!is_null($extra_class)) {
$table->add_class($extra_class);
}
/* Which columns do we need to process? */
$visible_columns = $this->visible_columns();
$number_of_expanded_visible_columns = $this->_number_of_expanded_visible_columns();
/* Render colgroup and col elements */
foreach ($visible_columns as $column) {
$column_group = new AnewtXHTMLTableColumnGroup();
$column_group->set_class($column->id);
$cell_renderers = $column->cell_renderers();
foreach ($cell_renderers as $cell_renderer) {
$column_group->append_child(new AnewtXHTMLTableColumn(null, array('class' => $cell_renderer->id)));
}
$table->append_child($column_group);
unset($column_group);
}
/* Render the header */
if ($this->_get('show-header')) {
$table_head = new AnewtXHTMLTableHead();
$header_cells = new AnewtXHTMLFragment();
$sub_header_cells = new AnewtXHTMLFragment();
/* Find out in advance whether we need to show a subheader (a second
* row of header cells with cellrenderer titles instead of column
* titles.) */
$show_sub_header = false;
foreach ($visible_columns as $column) {
foreach ($column->cell_renderers() as $cell_renderer) {
$cell_renderer_title = $cell_renderer->_get('title');
if (!is_null($cell_renderer_title)) {
/* Okay, there is at least one cell renderer with
* a non-empty title. */
$show_sub_header = true;
break 2;
}
}
}
foreach ($visible_columns as $column) {
$column_title = $column->_get('title');
$header_cell = new AnewtXHTMLTableHeaderCell($column_title);
/* Allow CSS styling and highlighting on a column level */
$header_cell->set_class(sprintf('column-%s', $column->id));
if ($column->_get('highlight')) {
$header_cell->add_class('highlight');
}
$cell_renderers = $column->cell_renderers();
$n_cell_renderers = count($cell_renderers);
/* If we need to show a subheader row, we loop over the cell
* renderers and use their titles, if set. If no subheader is
* shown anyway, we jus skip over this part. */
$column_has_sub_header_titles = false;
if ($show_sub_header) {
$sub_header_cells_for_column = new AnewtXHTMLFragment();
foreach ($cell_renderers as $cell_renderer) {
$cell_title = $cell_renderer->_get('title');
$sub_header_cell = new AnewtXHTMLTableHeaderCell($cell_title);
$sub_header_cell->set_class(sprintf('column-%s cell-%s', $column->id, $cell_renderer->id));
if ($column->_get('highlight')) {
$sub_header_cell->add_class('highlight');
}
$sub_header_cells_for_column->append_child($sub_header_cell);
if (strlen($cell_title) > 0) {
$column_has_sub_header_titles = true;
}
unset($sub_header_cell);
}
/* Only add the sub header cells if there are any. Otherwise
* we set a row span to make the header span two rows, since
* other rows use the second row to display the sub header
* cells. */
if ($column_has_sub_header_titles) {
$sub_header_cells->append_child($sub_header_cells_for_column);
} else {
$header_cell->set_attribute('rowspan', (string) 2);
}
}
/* We need to set a colspan if the column contains multiple cell
* renderers, because each cell renderer results in a td element
* in the final output, and the header should span all of the
* child cells. */
if ($n_cell_renderers >= 2) {
$header_cell->set_attribute('colspan', (string) $n_cell_renderers);
}
$column_title = $column->_getdefault('title', '');
$header_cells->append_child($header_cell);
unset($header_cell);
}
/* Now add the rows to the header. FIXME: should create
* AnewtXHTMLTableHead early on instead. */
$table_head->append_child(new AnewtXHTMLTableRow($header_cells));
if ($show_sub_header) {
$table_head->append_child(new AnewtXHTMLTableRow($sub_header_cells));
}
$table->append_child($table_head);
}
/* Grid summary text in table foot */
if ($this->_get('show-summary')) {
$table_foot = new AnewtXHTMLTableFoot();
$table_foot->append_child(new AnewtXHTMLTableRow(new AnewtXHTMLTableCell($this->_get('summary-text'), array('class' => 'summary', 'colspan' => (string) $number_of_expanded_visible_columns))));
$table->append_child($table_foot);
}
/* Make alternating row colors possible (zebra pattern) */
$generator = $this->get('generator');
if (is_null($generator)) {
anewt_include('generator');
$generator = new AnewtGenerator('odd', 'even');
}
assert('$generator instanceof AnewtGenerator');
/* Render the row data itself */
$table_body = new AnewtXHTMLTableBody();
foreach ($this->_rows as $data) {
/* This array will hold the rendered cells */
$cells = array();
/* Iterate over all visible columns of the Grid */
foreach (array_keys($visible_columns) as $column_id) {
$column = $visible_columns[$column_id];
/* Iterate over the cell renderers */
$cell_renderers = $column->cell_renderers();
foreach (array_keys($cell_renderers) as $cell_renderer_key) {
$rendered_cell = $cell_renderers[$cell_renderer_key]->render_cell($data);
$cells[] = $rendered_cell;
}
}
$row_attr = array('class' => $generator->next());
$table_body->append_child(new AnewtXHTMLTableRow($cells, $row_attr));
}
$table->append_child($table_body);
return $table;
}
$fragment->append_child(new AnewtXHTMLParagraph(new AnewtXHTMLEmphasis('Emphasis, '), new AnewtXHTMLStrong('strong, '), new AnewtXHTMLDefinition('defitinion, '), new AnewtXHTMLCode('code, '), new AnewtXHTMLSample('sample, '), new AnewtXHTMLKeyboard('keyboard, '), new AnewtXHTMLVariable('var, '), new AnewtXHTMLAbbreviation('abbr, '), 'and ', new AnewtXHTMLAcronym('acronym'), '.'));
$fragment->append_child(new AnewtXHTMLPreformatted('This is some preformatted text.'));
$fragment->append_child(new AnewtXHTMLBlockQuote(new AnewtXHTMLParagraph('This is a long quotation.'), new AnewtXHTMLParagraph('This is second paragraph of the long quotation.')));
$fragment->append_child(new AnewtXHTMLParagraph('This is a small quote: ', new AnewtXHTMLQuote('To be or not to be.')));
$fragment->append_child(new AnewtXHTMLParagraph('This paragraph is to test ', new AnewtXHTMLSubscript('subscripted'), ' and ', new AnewtXHTMLSuperscript('superscripted'), ' text.'));
/* Lists */
$fragment->append_child(new AnewtXHTMLHeader2('Lists'));
$fragment->append_child(new AnewtXHTMLHeader3('Ordered list'));
$ol = new AnewtXHTMLOrderedList(new AnewtXHTMLListItem('one'), new AnewtXHTMLListItem('two'), array('class' => 'foo'));
$ol->append_child(new AnewtXHTMLListItem('three', ' and last', array('class' => 'last')));
$fragment->append_child($ol);
$fragment->append_child(new AnewtXHTMLHeader3('Definition list'));
$fragment->append_child(new AnewtXHTMLDefinitionList(new AnewtXHTMLDefinitionTerm('foo'), new AnewtXHTMLDefinitionDescription('bar'), new AnewtXHTMLDefinitionTerm('quux'), new AnewtXHTMLDefinitionDescription('baz')), array('class' => 'definitions'));
/* Tables */
$fragment->append_child(new AnewtXHTMLHeader2('Tables'));
$table = new AnewtXHTMLTable();
$table_head = new AnewtXHTMLTableHead(new AnewtXHTMLTableRow(ax_fragment(new AnewtXHTMLTableHeaderCell('Column 1'), new AnewtXHTMLTableHeaderCell('Column 2'))));
$table->append_child($table_head);
$table_body = new AnewtXHTMLTableBody(ax_fragment(new AnewtXHTMLTableRow(ax_fragment(new AnewtXHTMLTableCell('r1c1'), new AnewtXHTMLTableCell('r1c2')), new AnewtXHTMLTableRow(ax_fragment(new AnewtXHTMLTableCell('r2c1'), new AnewtXHTMLTableCell('r2c2'))))));
$table->append_child($table_body);
$fragment->append_child($table);
/* Forms */
$fragment->append_child(new AnewtXHTMLHeader2('Forms'));
$form = new AnewtXHTMLForm(null, array('method' => 'GET'));
$input_fragment = new AnewtXHTMLFragment();
$input_fragment->append_child(new AnewtXHTMLLabel('Label: ', array('for' => 'test')));
$input_fragment->append_child(new AnewtXHTMLInput(null, array('name' => 'test', 'id' => 'test', 'type' => 'text')));
$form->append_child(new AnewtXHTMLParagraph($input_fragment));
$select = new AnewtXHTMLSelect(null, array('name' => 'select'));
$select->append_child(new AnewtXHTMLOption('First', array('value' => 'first')));
$select->append_child(new AnewtXHTMLOption('Second', array('value' => 'second')));
