/****************************************************************************

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** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

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** This file is part of the QtGui module of the Qt Toolkit.

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** GNU Lesser General Public License Usage

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** General Public License version 2.1 as published by the Free Software

** Foundation and appearing in the file LICENSE.LGPL included in the

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** ensure the GNU Lesser General Public License version 2.1 requirements

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****************************************************************************/

#ifndef QFONTMETRICS_H

#define QFONTMETRICS_H

#include <QtGui/qfont.h>

#ifndef QT_INCLUDE_COMPAT

#include <QtCore/qrect.h>

#endif

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Gui)

#ifdef Q_WS_QWS

class QFontEngine;

#endif

class QTextCodec;

class QRect;

class Q_GUI_EXPORT QFontMetrics

{

public:

    QFontMetrics(const QFont &);

    QFontMetrics(const QFont &, QPaintDevice *pd);

    QFontMetrics(const QFontMetrics &);

    ~QFontMetrics();

    QFontMetrics &operator=(const QFontMetrics &);

    int ascent() const;

    int descent() const;

    int height() const;

    int leading() const;

    int lineSpacing() const;

    int minLeftBearing() const;

    int minRightBearing() const;

    int maxWidth() const;

    int xHeight() const;

    int averageCharWidth() const;

    bool inFont(QChar) const;

    int leftBearing(QChar) const;

    int rightBearing(QChar) const;

    int width(const QString &, int len = -1) const;

    int width(QChar) const;

    int charWidth(const QString &str, int pos) const;

    QRect boundingRect(QChar) const;

    QRect boundingRect(const QString &text) const;

    QRect boundingRect(const QRect &r, int flags, const QString &text, int tabstops=0, int *tabarray=0) const;

    inline QRect boundingRect(int x, int y, int w, int h, int flags, const QString &text,

                              int tabstops=0, int *tabarray=0) const

        { return boundingRect(QRect(x, y, w, h), flags, text, tabstops, tabarray); }

    QSize size(int flags, const QString& str, int tabstops=0, int *tabarray=0) const;

    QRect tightBoundingRect(const QString &text) const;

    QString elidedText(const QString &text, Qt::TextElideMode mode, int width, int flags = 0) const;

    int underlinePos() const;

    int overlinePos() const;

    int strikeOutPos() const;

    int lineWidth() const;

    bool operator==(const QFontMetrics &other); // 5.0 - remove me

    bool operator==(const QFontMetrics &other) const;

    inline bool operator !=(const QFontMetrics &other) { return !operator==(other); } // 5.0 - remove me

    inline bool operator !=(const QFontMetrics &other) const { return !operator==(other); }

#ifdef QT3_SUPPORT

    inline QRect boundingRect(const QString &text, int len) const

        { return boundingRect(text.left(len)); }

    inline QRect boundingRect(int x, int y, int w, int h, int flags, const QString& str, int len,

                              int tabstops=0, int *tabarray=0) const

        { return boundingRect(QRect(x, y, w, h), flags, str.left(len), tabstops, tabarray); }

    inline QSize size(int flags, const QString& str, int len, int tabstops=0, int *tabarray=0) const

        { return size(flags, str.left(len), tabstops, tabarray); }

#endif

private:

#if defined(Q_WS_MAC)

    friend class QFontPrivate;

#endif

    friend class QFontMetricsF;

    friend class QStackTextEngine;

    QFontPrivate *d;

};

class Q_GUI_EXPORT QFontMetricsF

{

public:

    QFontMetricsF(const QFont &);

    QFontMetricsF(const QFont &, QPaintDevice *pd);

    QFontMetricsF(const QFontMetrics &);

    QFontMetricsF(const QFontMetricsF &);

    ~QFontMetricsF();

    QFontMetricsF &operator=(const QFontMetricsF &);

    QFontMetricsF &operator=(const QFontMetrics &);

    qreal ascent() const;

    qreal descent() const;

    qreal height() const;

    qreal leading() const;

    qreal lineSpacing() const;

    qreal minLeftBearing() const;

    qreal minRightBearing() const;

    qreal maxWidth() const;

    qreal xHeight() const;

    qreal averageCharWidth() const;

    bool inFont(QChar) const;

    qreal leftBearing(QChar) const;

    qreal rightBearing(QChar) const;

    qreal width(const QString &string) const;

    qreal width(QChar) const;

    QRectF boundingRect(const QString &string) const;

    QRectF boundingRect(QChar) const;

    QRectF boundingRect(const QRectF &r, int flags, const QString& string, int tabstops=0, int *tabarray=0) const;

    QSizeF size(int flags, const QString& str, int tabstops=0, int *tabarray=0) const;

    QRectF tightBoundingRect(const QString &text) const;

    QString elidedText(const QString &text, Qt::TextElideMode mode, qreal width, int flags = 0) const;

    qreal underlinePos() const;

    qreal overlinePos() const;

    qreal strikeOutPos() const;

    qreal lineWidth() const;

    bool operator==(const QFontMetricsF &other); // 5.0 - remove me

    bool operator==(const QFontMetricsF &other) const;

    inline bool operator !=(const QFontMetricsF &other) { return !operator==(other); } // 5.0 - remove me

    inline bool operator !=(const QFontMetricsF &other) const { return !operator==(other); }

private:

    QFontPrivate *d;

};

QT_END_NAMESPACE

QT_END_HEADER

#endif // QFONTMETRICS_H