diff options
Diffstat (limited to 'src/gui/text/qfontmetrics.cpp')
-rw-r--r-- | src/gui/text/qfontmetrics.cpp | 58 |
1 files changed, 34 insertions, 24 deletions
diff --git a/src/gui/text/qfontmetrics.cpp b/src/gui/text/qfontmetrics.cpp index a96df58..c9be073 100644 --- a/src/gui/text/qfontmetrics.cpp +++ b/src/gui/text/qfontmetrics.cpp @@ -1,7 +1,6 @@ /**************************************************************************** ** ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). -** All rights reserved. ** Contact: Nokia Corporation (qt-info@nokia.com) ** ** This file is part of the QtGui module of the Qt Toolkit. @@ -21,9 +20,10 @@ ** ensure the GNU Lesser General Public License version 2.1 requirements ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. ** -** In addition, as a special exception, Nokia gives you certain additional -** rights. These rights are described in the Nokia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.1, included in the file LGPL_EXCEPTION.txt in this +** package. ** ** If you have questions regarding the use of this file, please contact ** Nokia at qt-info@nokia.com. @@ -75,9 +75,8 @@ extern int qt_defaultDpi(); \brief The QFontMetrics class provides font metrics information. - \ingroup multimedia + \ingroup painting \ingroup shared - \ingroup text QFontMetrics functions calculate the size of characters and strings for a given font. There are three ways you can create a @@ -164,7 +163,7 @@ extern int qt_defaultDpi(); metrics that are compatible with a certain paint device. */ QFontMetrics::QFontMetrics(const QFont &font) - : d(font.d) + : d(font.d.data()) { d->ref.ref(); } @@ -196,7 +195,7 @@ QFontMetrics::QFontMetrics(const QFont &font, QPaintDevice *paintdevice) d->dpi = dpi; d->screen = screen; } else { - d = font.d; + d = font.d.data(); d->ref.ref(); } @@ -528,12 +527,14 @@ int QFontMetrics::rightBearing(QChar ch) const */ int QFontMetrics::width(const QString &text, int len) const { + int pos = text.indexOf(QLatin1Char('\x9c')); + QString txt = (pos == -1) ? text : text.left(pos); if (len < 0) - len = text.length(); + len = txt.length(); if (len == 0) return 0; - QTextEngine layout(text, d); + QTextEngine layout(txt, d); layout.ignoreBidi = true; return qRound(layout.width(0, len)); } @@ -557,11 +558,10 @@ int QFontMetrics::width(const QString &text, int len) const \warning This function will produce incorrect results for Arabic characters or non-spacing marks in the middle of a string, as the glyph shaping and positioning of marks that happens when - processing strings cannot be taken into account. Use charWidth() - instead if you aren't looking for the width of isolated - characters. + processing strings cannot be taken into account. When implementing + an interactive text control, use QTextLayout instead. - \sa boundingRect(), charWidth() + \sa boundingRect() */ int QFontMetrics::width(QChar ch) const { @@ -799,7 +799,7 @@ QRect QFontMetrics::boundingRect(const QRect &rect, int flags, const QString &te */ QSize QFontMetrics::size(int flags, const QString &text, int tabStops, int *tabArray) const { - return boundingRect(QRect(0,0,0,0), flags, text, tabStops, tabArray).size(); + return boundingRect(QRect(0,0,0,0), flags | Qt::TextLongestVariant, text, tabStops, tabArray).size(); } /*! @@ -858,11 +858,23 @@ QRect QFontMetrics::tightBoundingRect(const QString &text) const right-to-left layouts, and on the left side for right-to-left layouts. Note that this behavior is independent of the text language. - */ QString QFontMetrics::elidedText(const QString &text, Qt::TextElideMode mode, int width, int flags) const { - QStackTextEngine engine(text, QFont(d)); + QString _text = text; + if (!(flags & Qt::TextLongestVariant)) { + int posA = 0; + int posB = _text.indexOf(QLatin1Char('\x9c')); + while (posB >= 0) { + QString portion = _text.mid(posA, posB - posA); + if (size(flags, portion).width() <= width) + return portion; + posA = posB + 1; + posB = _text.indexOf(QLatin1Char('\x9c'), posA); + } + _text = _text.mid(posA); + } + QStackTextEngine engine(_text, QFont(d)); return engine.elidedText(mode, width, flags); } @@ -928,9 +940,8 @@ int QFontMetrics::lineWidth() const \brief The QFontMetricsF class provides font metrics information. - \ingroup multimedia + \ingroup painting \ingroup shared - \ingroup text QFontMetricsF functions calculate the size of characters and strings for a given font. You can construct a QFontMetricsF object @@ -1006,7 +1017,7 @@ QFontMetricsF &QFontMetricsF::operator=(const QFontMetrics &other) metrics that are compatible with a certain paint device. */ QFontMetricsF::QFontMetricsF(const QFont &font) - : d(font.d) + : d(font.d.data()) { d->ref.ref(); } @@ -1038,7 +1049,7 @@ QFontMetricsF::QFontMetricsF(const QFont &font, QPaintDevice *paintdevice) d->dpi = dpi; d->screen = screen; } else { - d = font.d; + d = font.d.data(); d->ref.ref(); } @@ -1386,9 +1397,8 @@ qreal QFontMetricsF::width(const QString &text) const \warning This function will produce incorrect results for Arabic characters or non-spacing marks in the middle of a string, as the glyph shaping and positioning of marks that happens when - processing strings cannot be taken into account. Use charWidth() - instead if you aren't looking for the width of isolated - characters. + processing strings cannot be taken into account. When implementing + an interactive text control, use QTextLayout instead. \sa boundingRect() */ |