/*

 * Copyright (C) 2014 Emweb bv, Herent, Belgium.

 *

 * See the LICENSE file for terms of use.

 */

#include "Wt/WException.h"

#include "Wt/WFontMetrics.h"

#include "Wt/WPaintDevice.h"

#include "Wt/WPainter.h"

#ifdef WT_HAS_WPDFIMAGE

#include "Wt/WPdfImage.h"

#endif // WT_HAS_WPDFIMAGE

#include "ServerSideFontMetrics.h"

namespace Wt {

ServerSideFontMetrics::ServerSideFontMetrics()

{

#ifdef WT_HAS_WPDFIMAGE

  img_.reset(new WPdfImage(100, 100));

  painter_.reset(new WPainter(img_.get()));

#endif // WT_HAS_WPDFIMAGE

}

ServerSideFontMetrics::~ServerSideFontMetrics()

{ }

WFontMetrics ServerSideFontMetrics::fontMetrics(const WFont& font)

{

#ifdef WT_HAS_WPDFIMAGE

  painter_->setFont(font);

  return painter_->device()->fontMetrics();

#else

  throw WException("ServerSideFontMetrics not available");

#endif // WT_HAS_WPDFIMAGE

}

WTextItem

ServerSideFontMetrics::measureText(const WFont& font,

                                   const WString& text, double maxWidth,

                                   bool wordWrap)

{

#ifdef WT_HAS_WPDFIMAGE

  painter_->setFont(font);

  WTextItem t = painter_->device()->measureText(text, maxWidth, wordWrap);

  const double REL_ERROR = 1.02;

  return WTextItem(t.text(), t.width() * REL_ERROR,

                   t.nextWidth() > 0 ? t.nextWidth() * REL_ERROR : t.nextWidth());

#else

  throw WException("ServerSideFontMetrics not available");

#endif // WT_HAS_WPDFIMAGE

}

bool ServerSideFontMetrics::available()

{

#ifdef WT_HAS_WPDFIMAGE

  return true;

#else

  return false;

#endif // WT_HAS_WPDFIMAGE

}

}