/*

 * Copyright (C) 2008 Emweb bv, Herent, Belgium.

 *

 * See the LICENSE file for terms of use.

 */

#include "Wt/WIcon.h"

#include "Wt/WApplication.h"

#include "Wt/WEnvironment.h"

#include "Wt/WCssDecorationStyle.h"

#include "Wt/WFont.h"

#include "WebUtils.h"

#include "DomElement.h"

namespace Wt {

WIcon::WIcon()

  : iconChanged_(false)

{ }

WIcon::WIcon(const std::string& name)

  : iconChanged_(false)

{

  setName(name);

}

void WIcon::setName(const std::string& name)

{

  if (name_ != name) {

    name_ = name;

    iconChanged_ = true;

    repaint();

    if (!name_.empty())

      loadIconFont();

  }

}

void WIcon::setSize(double factor)

{

  decorationStyle().font().setSize(WLength(factor, LengthUnit::FontEm));

}

double WIcon::size() const

{

  const WFont& f = decorationStyle().font();

  if (f.sizeLength().unit() == LengthUnit::FontEm)

    return f.sizeLength().value();

  else

    return 1;

}

void WIcon::updateDom(DomElement& element, bool all)

{

  if (iconChanged_ || all) {

    std::string sc;

    if (!all)

      sc = styleClass().toUTF8();

    if (!name_.empty())

      sc = Utils::addWord(sc, "fa fa-" + name_);

    element.setProperty(Property::Class, sc);

    iconChanged_ = false;

  }

  WInteractWidget::updateDom(element, all);

}

DomElementType WIcon::domElementType() const

{

  return DomElementType::I;

}

void WIcon::propagateRenderOk(bool deep)

{

  iconChanged_ = false;

  WInteractWidget::propagateRenderOk(deep);

}

void WIcon::loadIconFont()

{

  WApplication *app = WApplication::instance();

  std::string fontDir = WApplication::relativeResourcesUrl()

    + "font-awesome/";

  app->useStyleSheet(fontDir + "css/font-awesome.min.css");

}

}