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/****************************************************************************
**
** Copyright (C) 2010 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>
#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> &str) { return sizeof(str.val) * 2; }
static inline void appendTo(const HexString<T> &str, QChar *&out) { str.write(out); }
};
QT_END_NAMESPACE
#endif // QSTYLEHELPER_P_H
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