From a3566649d1c22df0639efde0987edfc0596e99d9 Mon Sep 17 00:00:00 2001 From: Jiang Jiang Date: Mon, 6 Feb 2012 14:07:35 +0100 Subject: Add distance field generation functions from Scenegraph Since we may use distance field text rendering in raster, these functions need to be moved from declarative to QtGui. Change-Id: I158bc3bae02b5590ae812f06ad7a78a5914bcb9e Reviewed-by: Eskil Abrahamsen Blomfeldt --- src/gui/text/qdistancefield_p.h | 85 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 85 insertions(+) create mode 100644 src/gui/text/qdistancefield_p.h (limited to 'src/gui/text/qdistancefield_p.h') diff --git a/src/gui/text/qdistancefield_p.h b/src/gui/text/qdistancefield_p.h new file mode 100644 index 0000000000..486d291b78 --- /dev/null +++ b/src/gui/text/qdistancefield_p.h @@ -0,0 +1,85 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/ +** +** This file is part of the QtDeclarative module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** 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. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU General +** Public License version 3.0 as published by the Free Software Foundation +** and appearing in the file LICENSE.GPL included in the packaging of this +** file. Please review the following information to ensure the GNU General +** Public License version 3.0 requirements will be met: +** http://www.gnu.org/copyleft/gpl.html. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QDISTANCEFIELD_H +#define QDISTANCEFIELD_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists purely as an +// implementation detail. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. +// + +#include +#include + +QT_BEGIN_NAMESPACE + +#define QT_DISTANCEFIELD_DEFAULT_BASEFONTSIZE 54 +#define QT_DISTANCEFIELD_DEFAULT_TILESIZE 64 +#define QT_DISTANCEFIELD_DEFAULT_SCALE 16 +#define QT_DISTANCEFIELD_DEFAULT_RADIUS 80 +#define QT_DISTANCEFIELD_HIGHGLYPHCOUNT 2000 + +#define QT_DISTANCEFIELD_BASEFONTSIZE(NarrowOutlineFont) \ + (NarrowOutlineFont ? QT_DISTANCEFIELD_DEFAULT_BASEFONTSIZE * 2 : \ + QT_DISTANCEFIELD_DEFAULT_BASEFONTSIZE) +#define QT_DISTANCEFIELD_TILESIZE(NarrowOutlineFont) \ + (NarrowOutlineFont ? QT_DISTANCEFIELD_DEFAULT_TILESIZE * 2 : \ + QT_DISTANCEFIELD_DEFAULT_TILESIZE) +#define QT_DISTANCEFIELD_SCALE(NarrowOutlineFont) \ + (NarrowOutlineFont ? QT_DISTANCEFIELD_DEFAULT_SCALE / 2 : \ + QT_DISTANCEFIELD_DEFAULT_SCALE) +#define QT_DISTANCEFIELD_RADIUS(NarrowOutlineFont) \ + (NarrowOutlineFont ? QT_DISTANCEFIELD_DEFAULT_RADIUS / 2 : \ + QT_DISTANCEFIELD_DEFAULT_RADIUS) + +bool Q_GUI_EXPORT qt_fontHasNarrowOutlines(const QRawFont &f); +QImage Q_GUI_EXPORT qt_renderDistanceFieldGlyph(const QRawFont &font, glyph_t glyph, bool doubleResolution); + +QT_END_NAMESPACE + +#endif // QDISTANCEFIELD_H -- cgit v1.2.3