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     2 **

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

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     5 ** Contact: Nokia Corporation (qt-info@nokia.com)

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

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     9 ** $QT_BEGIN_LICENSE:LGPL$

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    16 ** GNU Lesser General Public License Usage

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

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    38 ** $QT_END_LICENSE$

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    40 ****************************************************************************/

    41 

    42 #ifndef QFONTMETRICS_H

    43 #define QFONTMETRICS_H

    44 

    45 #include <QtGui/qfont.h>

    46 #ifndef QT_INCLUDE_COMPAT

    47 #include <QtCore/qrect.h>

    48 #endif

    49 

    50 QT_BEGIN_HEADER

    51 

    52 QT_BEGIN_NAMESPACE

    53 

    54 QT_MODULE(Gui)

    55 

    56 #ifdef Q_WS_QWS

    57 class QFontEngine;

    58 #endif

    59 

    60 class QTextCodec;

    61 class QRect;

    62 

    63 

    64 class Q_GUI_EXPORT QFontMetrics

    65 {

    66 public:

    67     QFontMetrics(const QFont &);

    68     QFontMetrics(const QFont &, QPaintDevice *pd);

    69     QFontMetrics(const QFontMetrics &);

    70     ~QFontMetrics();

    71 

    72     QFontMetrics &operator=(const QFontMetrics &);

    73 

    74     int ascent() const;

    75     int descent() const;

    76     int height() const;

    77     int leading() const;

    78     int lineSpacing() const;

    79     int minLeftBearing() const;

    80     int minRightBearing() const;

    81     int maxWidth() const;

    82 

    83     int xHeight() const;

    84     int averageCharWidth() const;

    85 

    86     bool inFont(QChar) const;

    87 

    88     int leftBearing(QChar) const;

    89     int rightBearing(QChar) const;

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

    91 

    92     int width(QChar) const;

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

    94 

    95     QRect boundingRect(QChar) const;

    96 

    97     QRect boundingRect(const QString &text) const;

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

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

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

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

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

   103 

   104     QRect tightBoundingRect(const QString &text) const;

   105 

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

   107 

   108     int underlinePos() const;

   109     int overlinePos() const;

   110     int strikeOutPos() const;

   111     int lineWidth() const;

   112 

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

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

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

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

   117 

   118 #ifdef QT3_SUPPORT

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

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

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

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

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

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

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

   126 #endif

   127 private:

   128 #if defined(Q_WS_MAC)

   129     friend class QFontPrivate;

   130 #endif

   131     friend class QFontMetricsF;

   132     friend class QStackTextEngine;

   133 

   134     QFontPrivate *d;

   135 };

   136 

   137 

   138 class Q_GUI_EXPORT QFontMetricsF

   139 {

   140 public:

   141     QFontMetricsF(const QFont &);

   142     QFontMetricsF(const QFont &, QPaintDevice *pd);

   143     QFontMetricsF(const QFontMetrics &);

   144     QFontMetricsF(const QFontMetricsF &);

   145     ~QFontMetricsF();

   146 

   147     QFontMetricsF &operator=(const QFontMetricsF &);

   148     QFontMetricsF &operator=(const QFontMetrics &);

   149 

   150     qreal ascent() const;

   151     qreal descent() const;

   152     qreal height() const;

   153     qreal leading() const;

   154     qreal lineSpacing() const;

   155     qreal minLeftBearing() const;

   156     qreal minRightBearing() const;

   157     qreal maxWidth() const;

   158 

   159     qreal xHeight() const;

   160     qreal averageCharWidth() const;

   161 

   162     bool inFont(QChar) const;

   163 

   164     qreal leftBearing(QChar) const;

   165     qreal rightBearing(QChar) const;

   166     qreal width(const QString &string) const;

   167 

   168     qreal width(QChar) const;

   169 

   170     QRectF boundingRect(const QString &string) const;

   171     QRectF boundingRect(QChar) const;

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

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

   174 

   175     QRectF tightBoundingRect(const QString &text) const;

   176 

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

   178 

   179     qreal underlinePos() const;

   180     qreal overlinePos() const;

   181     qreal strikeOutPos() const;

   182     qreal lineWidth() const;

   183 

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

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

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

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

   188 

   189 private:

   190     QFontPrivate *d;

   191 };

   192 

   193 QT_END_NAMESPACE

   194 

   195 QT_END_HEADER

   196 

   197 #endif // QFONTMETRICS_H