text: /****************************************************************************
  **
  ** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
  ** Contact: http://www.qt-project.org/legal
  **
  ** This file is part of the QtQuick module of the Qt Toolkit.
  **
  ** $QT_BEGIN_LICENSE:LGPL21$
  ** Commercial License Usage
  ** Licensees holding valid commercial Qt licenses may use this file in
  ** accordance with the commercial license agreement provided with the
  ** Software or, alternatively, in accordance with the terms contained in
  ** a written agreement between you and Digia. For licensing terms and
  ** conditions see http://qt.digia.com/licensing. For further information
  ** use the contact form at http://qt.digia.com/contact-us.
  **
  ** GNU Lesser General Public License Usage
  ** Alternatively, this file may be used under the terms of the GNU Lesser
  ** General Public License version 2.1 or version 3 as published by the Free
  ** Software Foundation and appearing in the file LICENSE.LGPLv21 and
  ** LICENSE.LGPLv3 included in the packaging of this file. Please review the
  ** following information to ensure the GNU Lesser General Public License
  ** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
  ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
  **
  ** In addition, as a special exception, Digia gives you certain additional
  ** rights. These rights are described in the Digia Qt LGPL Exception
  ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
  **
  ** $QT_END_LICENSE$
  **
  ****************************************************************************/
  
  #ifndef QQUICKFONTMETRICS_H
  #define QQUICKFONTMETRICS_H
  
  #include <qqml.h>
  
  #include <QtGui/QFontMetricsF>
  #include <QtCore/QObject>
  
  QT_BEGIN_NAMESPACE
  
  class QFont;
  
  class Q_AUTOTEST_EXPORT QQuickFontMetrics : public QObject
  {
      Q_OBJECT
  
      Q_PROPERTY(QFont font READ font WRITE setFont NOTIFY fontChanged)
      Q_PROPERTY(qreal ascent READ ascent NOTIFY fontChanged)
      Q_PROPERTY(qreal descent READ descent NOTIFY fontChanged)
      Q_PROPERTY(qreal height READ height NOTIFY fontChanged)
      Q_PROPERTY(qreal leading READ leading NOTIFY fontChanged)
      Q_PROPERTY(qreal lineSpacing READ lineSpacing NOTIFY fontChanged)
      Q_PROPERTY(qreal minimumLeftBearing READ minimumLeftBearing NOTIFY fontChanged)
      Q_PROPERTY(qreal minimumRightBearing READ minimumRightBearing NOTIFY fontChanged)
      Q_PROPERTY(qreal maximumCharacterWidth READ maximumCharacterWidth NOTIFY fontChanged)
      Q_PROPERTY(qreal xHeight READ xHeight NOTIFY fontChanged)
      Q_PROPERTY(qreal averageCharacterWidth READ averageCharacterWidth NOTIFY fontChanged)
      Q_PROPERTY(qreal underlinePosition READ underlinePosition NOTIFY fontChanged)
      Q_PROPERTY(qreal overlinePosition READ overlinePosition NOTIFY fontChanged)
      Q_PROPERTY(qreal strikeOutPosition READ strikeOutPosition NOTIFY fontChanged)
      Q_PROPERTY(qreal lineWidth READ lineWidth NOTIFY fontChanged)
  public:
      explicit QQuickFontMetrics(QObject *parent = 0);
      ~QQuickFontMetrics();
  
      QFont font() const;
      void setFont(const QFont &font);
  
      qreal ascent() const;
      qreal descent() const;
      qreal height() const;
      qreal leading() const;
      qreal lineSpacing() const;
      qreal minimumLeftBearing() const;
      qreal minimumRightBearing() const;
      qreal maximumCharacterWidth() const;
  
      qreal xHeight() const;
      qreal averageCharacterWidth() const;
  
      qreal underlinePosition() const;
      qreal overlinePosition() const;
      qreal strikeOutPosition() const;
      qreal lineWidth() const;
  
      Q_INVOKABLE qreal advanceWidth(const QString &text) const;
      Q_INVOKABLE QRectF boundingRect(const QString &text) const;
      Q_INVOKABLE QRectF tightBoundingRect(const QString &text) const;
      Q_INVOKABLE QString elidedText(const QString &text, Qt::TextElideMode mode, qreal width, int flags = 0) const;
  
  Q_SIGNALS:
      void fontChanged(const QFont &font);
  
  private:
      QFont m_font;
      QFontMetricsF m_metrics;
  };
  
  QT_END_NAMESPACE
  
  QML_DECLARE_TYPE(QQuickFontMetrics)
  
  #endif // QQUICKFONTMETRICS_H
  