Changes Nette form default markup to be compatible with Bootstrap CSS framework.

BootstrapHorizontalFormRenderer.php

<?php
namespace SmartCMS;

use Nette,
	Nette\Utils\Html;


class BootstrapHorizontalFormRenderer extends Nette\Forms\Rendering\DefaultFormRenderer
{
	public $wrappers = array(
		'form' => array(
			'container' => 'div class=form-horizontal',
			'errors' => TRUE,
		),

		'error' => array(
			'container' => 'ul class=error',
			'item' => 'li',
		),

		'group' => array(
			'container' => 'fieldset',
			'label' => 'legend',
			'description' => 'p',
		),

		'controls' => array(
			'container' => NULL,
		),

		'pair' => array(
			'container' => 'div class=control-group',
			'.required' => 'required',
			'.optional' => NULL,
			'.odd' => NULL,
		),

		'control' => array(
			'container' => 'div class=controls',
			'.odd' => NULL,

			'errors' => FALSE,
			'description' => 'p class=help-block',
			'requiredsuffix' => '',

			'.required' => 'required',
			'.text' => 'text',
			'.password' => 'text',
			'.file' => 'text',
			'.submit' => 'button',
			'.image' => 'imagebutton',
			'.button' => 'button',
		),

		'label' => array(
			'container' => NULL,
			'suffix' => NULL,
			'requiredsuffix' => '',
			'.class' => 'control-label',
		),

		'hidden' => array(
			'container' => 'div',
		),

		'buttons' => array(
			'container' => 'div class=form-actions',
			'.class' => 'btn'
		),
	);

	public function renderLabel(Nette\Forms\IControl $control)
	{
		$head = $this->getWrapper('label container');

		if ($control instanceof Nette\Forms\Controls\Checkbox || $control instanceof Nette\Forms\Controls\Button) {
			return $head->setHtml(($head->getName() === 'td' || $head->getName() === 'th') ? '&nbsp;' : '');

		} else {
			$label = $control->getLabel();
			$suffix = $this->getValue('label suffix') . ($control->isRequired() ? $this->getValue('label requiredsuffix') : '');
			$class = $this->getValue('label .class');
			if ($label instanceof Html) {
				$label->setHtml($label->getHtml() . $suffix);
				$label->class($class, TRUE);
				$suffix = '';
			}
			return $head->setHtml((string) $label . $suffix);
		}
	}

	public function renderPairMulti(array $controls)
	{
		$s = array();
		foreach ($controls as $control) {
			if (!$control instanceof Nette\Forms\IControl) {
				throw new Nette\InvalidArgumentException("Argument must be array of IFormControl instances.");
			}

			$controlPrototype = $control->getControl();
			if($control instanceof Nette\Forms\Controls\Button) {
				$class = $this->getValue('buttons .class');
				$controlPrototype->class($class, TRUE);
			}

			$s[] = (string) $controlPrototype;
		}
		$pair = $this->getWrapper('buttons container');
		$pair->add($this->renderLabel($control))->setHtml(implode(" ", $s));
		return $pair->render(0);
	}
}