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166 lines
5 KiB
C++
166 lines
5 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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** Contact: http://www.qt.io/licensing/
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**
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** This file is part of the QtGui module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see http://www.qt.io/terms-conditions. For further
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** information use the contact form at http://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 or version 3 as published by the Free
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** Software Foundation and appearing in the file LICENSE.LGPLv21 and
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** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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** following information to ensure the GNU Lesser General Public License
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** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** As a special exception, The Qt Company gives you certain additional
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** rights. These rights are described in The Qt Company LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "qfont.h"
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#include "qfont_p.h"
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#include "qfontengine_p.h"
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#include "qtextengine_p.h"
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#include "qfontmetrics.h"
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#include "qfontinfo.h"
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#include "qwidget.h"
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#include "qpainter.h"
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#include <limits.h>
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#include "qt_windows.h"
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#include <qapplication_p.h>
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#include "qapplication.h"
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#include <qunicodetables_p.h>
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#include <qfontdatabase.h>
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QT_BEGIN_NAMESPACE
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extern HDC shared_dc(); // common dc for all fonts
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extern QFont::Weight weightFromInteger(int weight); // qfontdatabase.cpp
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// ### maybe move to qapplication_win
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QFont qt_LOGFONTtoQFont(LOGFONT& lf, bool /*scale*/)
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{
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QString family = QString::fromWCharArray(lf.lfFaceName);
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QFont qf(family);
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qf.setItalic(lf.lfItalic);
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if (lf.lfWeight != FW_DONTCARE)
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qf.setWeight(weightFromInteger(lf.lfWeight));
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int lfh = qAbs(lf.lfHeight);
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qf.setPointSizeF(lfh * 72.0 / GetDeviceCaps(shared_dc(),LOGPIXELSY));
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qf.setUnderline(false);
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qf.setOverline(false);
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qf.setStrikeOut(false);
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return qf;
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}
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static inline float pixelSize(const QFontDef &request, int dpi)
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{
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float pSize;
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if (request.pointSize != -1)
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pSize = request.pointSize * dpi/ 72.;
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else
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pSize = request.pixelSize;
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return pSize;
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}
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static inline float pointSize(const QFontDef &fd, int dpi)
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{
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float pSize;
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if (fd.pointSize < 0)
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pSize = fd.pixelSize * 72. / ((float)dpi);
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else
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pSize = fd.pointSize;
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return pSize;
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}
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/*****************************************************************************
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QFont member functions
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*****************************************************************************/
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void QFont::initialize()
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{
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}
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void QFont::cleanup()
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{
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QFontCache::cleanup();
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}
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HFONT QFont::handle() const
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{
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QFontEngine *engine = d->engineForScript(QUnicodeTables::Common);
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Q_ASSERT(engine != 0);
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if (engine->type() == QFontEngine::Multi)
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engine = static_cast<QFontEngineMulti *>(engine)->engine(0);
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if (engine->type() == QFontEngine::Win)
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return static_cast<QFontEngineWin *>(engine)->hfont;
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return 0;
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}
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QString QFont::rawName() const
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{
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return family();
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}
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void QFont::setRawName(const QString &name)
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{
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setFamily(name);
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}
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QString QFont::defaultFamily() const
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{
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switch(d->request.styleHint) {
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case QFont::Times:
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return QString::fromLatin1("Times New Roman");
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case QFont::Courier:
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case QFont::Monospace:
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return QString::fromLatin1("Courier New");
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case QFont::Decorative:
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return QString::fromLatin1("Bookman Old Style");
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case QFont::Cursive:
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return QString::fromLatin1("Comic Sans MS");
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case QFont::Fantasy:
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return QString::fromLatin1("Impact");
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case QFont::Helvetica:
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return QString::fromLatin1("Arial");
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case QFont::System:
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default:
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return QString::fromLatin1("MS Sans Serif");
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}
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}
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QString QFont::lastResortFamily() const
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{
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return QString::fromLatin1("helvetica");
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}
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QString QFont::lastResortFont() const
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{
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return QString::fromLatin1("arial");
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}
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QT_END_NAMESPACE
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