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     2 **

     3 ** Copyright (C) 2010 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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    16 ** GNU Lesser General Public License Usage

    17 ** Alternatively, this file may be used under the terms of the GNU Lesser

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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 #include <QtCore/qsharedpointer.h>

    47 #ifndef QT_INCLUDE_COMPAT

    48 #include <QtCore/qrect.h>

    49 #endif

    50 

    51 QT_BEGIN_HEADER

    52 

    53 QT_BEGIN_NAMESPACE

    54 

    55 QT_MODULE(Gui)

    56 

    57 #ifdef Q_WS_QWS

    58 class QFontEngine;

    59 #endif

    60 

    61 class QTextCodec;

    62 class QRect;

    63 

    64 

    65 class Q_GUI_EXPORT QFontMetrics

    66 {

    67 public:

    68     QFontMetrics(const QFont &);

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

    70     QFontMetrics(const QFontMetrics &);

    71     ~QFontMetrics();

    72 

    73     QFontMetrics &operator=(const QFontMetrics &);

    74 

    75     int ascent() const;

    76     int descent() const;

    77     int height() const;

    78     int leading() const;

    79     int lineSpacing() const;

    80     int minLeftBearing() const;

    81     int minRightBearing() const;

    82     int maxWidth() const;

    83 

    84     int xHeight() const;

    85     int averageCharWidth() const;

    86 

    87     bool inFont(QChar) const;

    88 

    89     int leftBearing(QChar) const;

    90     int rightBearing(QChar) const;

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

    92 

    93     int width(QChar) const;

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

    95 

    96     QRect boundingRect(QChar) const;

    97 

    98     QRect boundingRect(const QString &text) const;

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

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

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

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

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

   104 

   105     QRect tightBoundingRect(const QString &text) const;

   106 

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

   108 

   109     int underlinePos() const;

   110     int overlinePos() const;

   111     int strikeOutPos() const;

   112     int lineWidth() const;

   113 

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

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

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

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

   118 

   119 #ifdef QT3_SUPPORT

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

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

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

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

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

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

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

   127 #endif

   128 private:

   129 #if defined(Q_WS_MAC)

   130     friend class QFontPrivate;

   131 #endif

   132     friend class QFontMetricsF;

   133     friend class QStackTextEngine;

   134 

   135     QExplicitlySharedDataPointer<QFontPrivate> d;

   136 };

   137 

   138 

   139 class Q_GUI_EXPORT QFontMetricsF

   140 {

   141 public:

   142     QFontMetricsF(const QFont &);

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

   144     QFontMetricsF(const QFontMetrics &);

   145     QFontMetricsF(const QFontMetricsF &);

   146     ~QFontMetricsF();

   147 

   148     QFontMetricsF &operator=(const QFontMetricsF &);

   149     QFontMetricsF &operator=(const QFontMetrics &);

   150 

   151     qreal ascent() const;

   152     qreal descent() const;

   153     qreal height() const;

   154     qreal leading() const;

   155     qreal lineSpacing() const;

   156     qreal minLeftBearing() const;

   157     qreal minRightBearing() const;

   158     qreal maxWidth() const;

   159 

   160     qreal xHeight() const;

   161     qreal averageCharWidth() const;

   162 

   163     bool inFont(QChar) const;

   164 

   165     qreal leftBearing(QChar) const;

   166     qreal rightBearing(QChar) const;

   167     qreal width(const QString &string) const;

   168 

   169     qreal width(QChar) const;

   170 

   171     QRectF boundingRect(const QString &string) const;

   172     QRectF boundingRect(QChar) const;

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

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

   175 

   176     QRectF tightBoundingRect(const QString &text) const;

   177 

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

   179 

   180     qreal underlinePos() const;

   181     qreal overlinePos() const;

   182     qreal strikeOutPos() const;

   183     qreal lineWidth() const;

   184 

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

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

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

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

   189 

   190 private:

   191     QExplicitlySharedDataPointer<QFontPrivate> d;

   192 };

   193 

   194 QT_END_NAMESPACE

   195 

   196 QT_END_HEADER

   197 

   198 #endif // QFONTMETRICS_H