1 files changed, 368 insertions, 0 deletions
diff --git a/src/widgets/platforms/x11/qfont_x11.cpp b/src/widgets/platforms/x11/qfont_x11.cpp
new file mode 100644
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+++ b/src/widgets/platforms/x11/qfont_x11.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** 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 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** 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.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#define QT_FATAL_ASSERT
+
+#include "qplatformdefs.h"
+
+#include "qfont.h"
+#include "qapplication.h"
+#include "qfontinfo.h"
+#include "qfontdatabase.h"
+#include "qfontmetrics.h"
+#include "qpaintdevice.h"
+#include "qtextcodec.h"
+#include "qiodevice.h"
+#include "qhash.h"
+
+#include <private/qunicodetables_p.h>
+#include "qfont_p.h"
+#include "qfontengine_p.h"
+#include "qfontengine_x11_p.h"
+#include "qtextengine_p.h"
+
+#include <private/qt_x11_p.h>
+#include "qx11info_x11.h"
+
+#include <time.h>
+#include <stdlib.h>
+#include <ctype.h>
+
+#define QFONTLOADER_DEBUG
+#define QFONTLOADER_DEBUG_VERBOSE
+
+QT_BEGIN_NAMESPACE
+
+double qt_pixelSize(double pointSize, int dpi)
+{
+    if (pointSize < 0)
+        return -1.;
+    if (dpi == 75) // the stupid 75 dpi setting on X11
+        dpi = 72;
+    return (pointSize * dpi) /72.;
+}
+
+double qt_pointSize(double pixelSize, int dpi)
+{
+    if (pixelSize < 0)
+        return -1.;
+    if (dpi == 75) // the stupid 75 dpi setting on X11
+        dpi = 72;
+    return pixelSize * 72. / ((double) dpi);
+}
+
+/*
+  Removes wildcards from an XLFD.
+
+  Returns \a xlfd with all wildcards removed if a match for \a xlfd is
+  found, otherwise it returns \a xlfd.
+*/
+static QByteArray qt_fixXLFD(const QByteArray &xlfd)
+{
+    QByteArray ret = xlfd;
+    int count = 0;
+    char **fontNames =
+        XListFonts(QX11Info::display(), xlfd, 32768, &count);
+    if (count > 0)
+        ret = fontNames[0];
+    XFreeFontNames(fontNames);
+    return ret ;
+}
+
+typedef QHash<int, QString> FallBackHash;
+Q_GLOBAL_STATIC(FallBackHash, fallBackHash)
+
+// Returns the user-configured fallback family for the specified script.
+QString qt_fallback_font_family(int script)
+{
+    FallBackHash *hash = fallBackHash();
+    return hash->value(script);
+}
+
+// Sets the fallback family for the specified script.
+Q_GUI_EXPORT void qt_x11_set_fallback_font_family(int script, const QString &family)
+{
+    FallBackHash *hash = fallBackHash();
+    if (!family.isEmpty())
+        hash->insert(script, family);
+    else
+        hash->remove(script);
+}
+
+int QFontPrivate::defaultEncodingID = -1;
+
+void QFont::initialize()
+{
+    extern int qt_encoding_id_for_mib(int mib); // from qfontdatabase_x11.cpp
+    QTextCodec *codec = QTextCodec::codecForLocale();
+    // determine the default encoding id using the locale, otherwise
+    // fallback to latin1 (mib == 4)
+    int mib = codec ? codec->mibEnum() : 4;
+
+    // for asian locales, use the mib for the font codec instead of the locale codec
+    switch (mib) {
+    case 38: // eucKR
+        mib = 36;
+        break;
+
+    case 2025: // GB2312
+        mib = 57;
+        break;
+
+    case 113: // GBK
+        mib = -113;
+        break;
+
+    case 114: // GB18030
+        mib = -114;
+        break;
+
+    case 2026: // Big5
+        mib = -2026;
+        break;
+
+    case 2101: // Big5-HKSCS
+        mib = -2101;
+        break;
+
+    case 16: // JIS7
+        mib = 15;
+        break;
+
+    case 17: // SJIS
+    case 18: // eucJP
+        mib = 63;
+        break;
+    }
+
+    // get the default encoding id for the locale encoding...
+    QFontPrivate::defaultEncodingID = qt_encoding_id_for_mib(mib);
+}
+
+void QFont::cleanup()
+{
+    QFontCache::cleanup();
+}
+
+/*!
+  \internal
+  X11 Only: Returns the screen with which this font is associated.
+*/
+int QFont::x11Screen() const
+{
+    return d->screen;
+}
+
+/*! \internal
+    X11 Only: Associate the font with the specified \a screen.
+*/
+void QFont::x11SetScreen(int screen)
+{
+    if (screen < 0) // assume default
+        screen = QX11Info::appScreen();
+
+    if (screen == d->screen)
+        return; // nothing to do
+
+    detach();
+    d->screen = screen;
+}
+
+Qt::HANDLE QFont::handle() const
+{
+    QFontEngine *engine = d->engineForScript(QUnicodeTables::Common);
+    Q_ASSERT(engine != 0);
+    if (engine->type() == QFontEngine::Multi)
+        engine = static_cast<QFontEngineMulti *>(engine)->engine(0);
+    if (engine->type() == QFontEngine::XLFD)
+        return static_cast<QFontEngineXLFD *>(engine)->fontStruct()->fid;
+    return 0;
+}
+
+
+FT_Face QFont::freetypeFace() const
+{
+#ifndef QT_NO_FREETYPE
+    QFontEngine *engine = d->engineForScript(QUnicodeTables::Common);
+    if (engine->type() == QFontEngine::Multi)
+        engine = static_cast<QFontEngineMulti *>(engine)->engine(0);
+#ifndef QT_NO_FONTCONFIG
+    if (engine->type() == QFontEngine::Freetype) {
+        const QFontEngineFT *ft = static_cast<const QFontEngineFT *>(engine);
+        return ft->non_locked_face();
+    } else
+#endif
+    if (engine->type() == QFontEngine::XLFD) {
+        const QFontEngineXLFD *xlfd = static_cast<const QFontEngineXLFD *>(engine);
+        return xlfd->non_locked_face();
+    }
+#endif
+    return 0;
+}
+
+QString QFont::rawName() const
+{
+    QFontEngine *engine = d->engineForScript(QUnicodeTables::Common);
+    Q_ASSERT(engine != 0);
+    if (engine->type() == QFontEngine::Multi)
+        engine = static_cast<QFontEngineMulti *>(engine)->engine(0);
+    if (engine->type() == QFontEngine::XLFD)
+        return QString::fromLatin1(engine->name());
+    return QString();
+}
+struct QtFontDesc;
+
+void QFont::setRawName(const QString &name)
+{
+    detach();
+
+    // from qfontdatabase_x11.cpp
+    extern bool qt_fillFontDef(const QByteArray &xlfd, QFontDef *fd, int dpi, QtFontDesc *desc);
+
+    if (!qt_fillFontDef(qt_fixXLFD(name.toLatin1()), &d->request, d->dpi, 0)) {
+        qWarning("QFont::setRawName: Invalid XLFD: \"%s\"", name.toLatin1().constData());
+
+        setFamily(name);
+        setRawMode(true);
+    } else {
+        resolve_mask = QFont::AllPropertiesResolved;
+    }
+}
+
+QString QFont::lastResortFamily() const
+{
+    return QString::fromLatin1("Helvetica");
+}
+
+QString QFont::defaultFamily() const
+{
+    switch (d->request.styleHint) {
+    case QFont::Times:
+        return QString::fromLatin1("Times");
+
+    case QFont::Courier:
+        return QString::fromLatin1("Courier");
+
+    case QFont::Monospace:
+        return QString::fromLatin1("Courier New");
+
+    case QFont::Cursive:
+        return QString::fromLatin1("Comic Sans MS");
+
+    case QFont::Fantasy:
+        return QString::fromLatin1("Impact");
+
+    case QFont::Decorative:
+        return QString::fromLatin1("Old English");
+
+    case QFont::Helvetica:
+    case QFont::System:
+    default:
+        return QString::fromLatin1("Helvetica");
+    }
+}
+
+/*
+  Returns a last resort raw font name for the font matching algorithm.
+  This is used if even the last resort family is not available. It
+  returns \e something, almost no matter what.  The current
+  implementation tries a wide variety of common fonts, returning the
+  first one it finds. The implementation may change at any time.
+*/
+static const char * const tryFonts[] = {
+    "-*-helvetica-medium-r-*-*-*-120-*-*-*-*-*-*",
+    "-*-courier-medium-r-*-*-*-120-*-*-*-*-*-*",
+    "-*-times-medium-r-*-*-*-120-*-*-*-*-*-*",
+    "-*-lucida-medium-r-*-*-*-120-*-*-*-*-*-*",
+    "-*-helvetica-*-*-*-*-*-120-*-*-*-*-*-*",
+    "-*-courier-*-*-*-*-*-120-*-*-*-*-*-*",
+    "-*-times-*-*-*-*-*-120-*-*-*-*-*-*",
+    "-*-lucida-*-*-*-*-*-120-*-*-*-*-*-*",
+    "-*-helvetica-*-*-*-*-*-*-*-*-*-*-*-*",
+    "-*-courier-*-*-*-*-*-*-*-*-*-*-*-*",
+    "-*-times-*-*-*-*-*-*-*-*-*-*-*-*",
+    "-*-lucida-*-*-*-*-*-*-*-*-*-*-*-*",
+    "-*-fixed-*-*-*-*-*-*-*-*-*-*-*-*",
+    "6x13",
+    "7x13",
+    "8x13",
+    "9x15",
+    "fixed",
+    0
+};
+
+// Returns true if the font exists, false otherwise
+static bool fontExists(const QString &fontName)
+{
+    int count;
+    char **fontNames = XListFonts(QX11Info::display(), (char*)fontName.toLatin1().constData(), 32768, &count);
+    if (fontNames) XFreeFontNames(fontNames);
+
+    return count != 0;
+}
+
+QString QFont::lastResortFont() const
+{
+    static QString last;
+
+    // already found
+    if (! last.isNull())
+        return last;
+
+    int i = 0;
+    const char* f;
+
+    while ((f = tryFonts[i])) {
+        last = QString::fromLatin1(f);
+
+        if (fontExists(last))
+            return last;
+
+        i++;
+    }
+
+#if defined(CHECK_NULL)
+    qFatal("QFontPrivate::lastResortFont: Cannot find any reasonable font");
+#endif
+    return last;
+}
+
+QT_END_NAMESPACE