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Diffstat (limited to 'src/gui/styles/qstylehelper_p.h')
-rw-r--r-- | src/gui/styles/qstylehelper_p.h | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/src/gui/styles/qstylehelper_p.h b/src/gui/styles/qstylehelper_p.h new file mode 100644 index 0000000000..27587e30ac --- /dev/null +++ b/src/gui/styles/qstylehelper_p.h @@ -0,0 +1,118 @@ +/**************************************************************************** +** +** 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. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtCore/qglobal.h> +#include <QtCore/qpoint.h> +#include <QtCore/qstring.h> +#include <QtGui/qpolygon.h> +#include <QtCore/qstringbuilder.h> + +#ifndef QSTYLEHELPER_P_H +#define QSTYLEHELPER_P_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. +// + +QT_BEGIN_NAMESPACE + +class QPainter; +class QPixmap; +class QStyleOptionSlider; +class QStyleOption; + +namespace QStyleHelper +{ + QString uniqueName(const QString &key, const QStyleOption *option, const QSize &size); + qreal dpiScaled(qreal value); +#ifndef QT_NO_DIAL + qreal angle(const QPointF &p1, const QPointF &p2); + QPolygonF calcLines(const QStyleOptionSlider *dial); + int calcBigLineSize(int radius); + void drawDial(const QStyleOptionSlider *dial, QPainter *painter); +#endif //QT_NO_DIAL + void drawBorderPixmap(const QPixmap &pixmap, QPainter *painter, const QRect &rect, + int left = 0, int top = 0, int right = 0, + int bottom = 0); +} + +// internal helper. Converts an integer value to an unique string token +template <typename T> + struct HexString +{ + inline HexString(const T t) + : val(t) + {} + + inline void write(QChar *&dest) const + { + const ushort hexChars[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' }; + const char *c = reinterpret_cast<const char *>(&val); + for (uint i = 0; i < sizeof(T); ++i) { + *dest++ = hexChars[*c & 0xf]; + *dest++ = hexChars[(*c & 0xf0) >> 4]; + ++c; + } + } + const T val; +}; + +// specialization to enable fast concatenating of our string tokens to a string +template <typename T> + struct QConcatenable<HexString<T> > +{ + typedef HexString<T> type; + enum { ExactSize = true }; + static int size(const HexString<T> &) { return sizeof(T) * 2; } + static inline void appendTo(const HexString<T> &str, QChar *&out) { str.write(out); } + typedef QString ConvertTo; +}; + +QT_END_NAMESPACE + +#endif // QSTYLEHELPER_P_H |