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Diffstat (limited to 'src/declarative/qml/qmlstringconverters.cpp')
-rw-r--r-- | src/declarative/qml/qmlstringconverters.cpp | 212 |
1 files changed, 212 insertions, 0 deletions
diff --git a/src/declarative/qml/qmlstringconverters.cpp b/src/declarative/qml/qmlstringconverters.cpp new file mode 100644 index 0000000..82d6eee --- /dev/null +++ b/src/declarative/qml/qmlstringconverters.cpp @@ -0,0 +1,212 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the QtDeclarative 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 either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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 1.0, 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. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtGui/qcolor.h> +#include <QtCore/qpoint.h> +#include <QtCore/qrect.h> +#include <QtCore/qsize.h> +#include <QtCore/qvariant.h> +#include "qmlstringconverters_p.h" + +QT_BEGIN_NAMESPACE + +static uchar fromHex(const uchar c, const uchar c2) +{ + uchar rv = 0; + if(c >= '0' && c <= '9') + rv += (c - '0') * 16; + else if(c >= 'A' && c <= 'F') + rv += (c - 'A' + 10) * 16; + else if(c >= 'a' && c <= 'f') + rv += (c - 'a' + 10) * 16; + + if(c2 >= '0' && c2 <= '9') + rv += (c2 - '0'); + else if(c2 >= 'A' && c2 <= 'F') + rv += (c2 - 'A' + 10); + else if(c2 >= 'a' && c2 <= 'f') + rv += (c2 - 'a' + 10); + + return rv; +} + +static uchar fromHex(const QString &s, int idx) +{ + uchar c = s.at(idx).toAscii(); + uchar c2 = s.at(idx + 1).toAscii(); + return fromHex(c, c2); +} + +QVariant QmlStringConverters::variantFromString(const QString &s) +{ + if(s.isEmpty()) + return QVariant(s); + if(s.startsWith(QLatin1Char('\'')) && s.endsWith(QLatin1Char('\''))) { + QString data = s.mid(1, s.length() - 2); + return QVariant(data); + } + bool ok = false; + QRectF r = rectFFromString(s, &ok); + if(ok) return QVariant(r); + QColor c = colorFromString(s, &ok); + if(ok) return QVariant(c); + QPointF p = pointFFromString(s, &ok); + if(ok) return QVariant(p); + QSizeF sz = sizeFFromString(s, &ok); + if(ok) return QVariant(sz); + bool b = boolFromString(s, &ok); + if(ok) return QVariant(b); + + return QVariant(s); +} + +QColor QmlStringConverters::colorFromString(const QString &s, bool *ok) +{ + if(s.startsWith(QLatin1Char('#')) && s.length() == 9) { + uchar a = fromHex(s, 1); + uchar r = fromHex(s, 3); + uchar g = fromHex(s, 5); + uchar b = fromHex(s, 7); + if(ok) *ok = true; + return QColor(r, g, b, a); + } else { + QColor rv; + if(s.startsWith(QLatin1Char('#')) || QColor::colorNames().contains(s.toLower())) + rv = QColor(s); + if(ok) *ok = rv.isValid(); + return rv; + } +} + +//expects input of "x,y" +QPointF QmlStringConverters::pointFFromString(const QString &s, bool *ok) +{ + if (s.count(QLatin1Char(',')) != 1) { + if (ok) + *ok = false; + return QPointF(); + } + + bool xGood, yGood; + int index = s.indexOf(QLatin1Char(',')); + qreal xCoord = s.left(index).toDouble(&xGood); + qreal yCoord = s.mid(index+1).toDouble(&yGood); + if (!xGood || !yGood) { + if (ok) + *ok = false; + return QPointF(); + } + + if (ok) + *ok = true; + return QPointF(xCoord, yCoord); +} + +//expects input of "widthxheight" +QSizeF QmlStringConverters::sizeFFromString(const QString &s, bool *ok) +{ + if (s.count(QLatin1Char('x')) != 1) { + if (ok) + *ok = false; + return QSizeF(); + } + + bool wGood, hGood; + int index = s.indexOf(QLatin1Char('x')); + qreal width = s.left(index).toDouble(&wGood); + qreal height = s.mid(index+1).toDouble(&hGood); + if (!wGood || !hGood) { + if (ok) + *ok = false; + return QSizeF(); + } + + if (ok) + *ok = true; + return QSizeF(width, height); +} + +//expects input of "x,y,widthxheight" //### use space instead of second comma? +QRectF QmlStringConverters::rectFFromString(const QString &s, bool *ok) +{ + if (s.count(QLatin1Char(',')) != 2 || s.count(QLatin1Char('x')) != 1) { + if (ok) + *ok = false; + return QRectF(); + } + + bool xGood, yGood, wGood, hGood; + int index = s.indexOf(QLatin1Char(',')); + qreal x = s.left(index).toDouble(&xGood); + int index2 = s.indexOf(QLatin1Char(','), index+1); + qreal y = s.mid(index+1, index2-index-1).toDouble(&yGood); + index = s.indexOf(QLatin1Char('x'), index2+1); + qreal width = s.mid(index2+1, index-index2-1).toDouble(&wGood); + qreal height = s.mid(index+1).toDouble(&hGood); + if (!xGood || !yGood || !wGood || !hGood) { + if (ok) + *ok = false; + return QRectF(); + } + + if (ok) + *ok = true; + return QRectF(x, y, width, height); +} + +bool QmlStringConverters::boolFromString(const QString &str, bool *ok) +{ + if (str.isEmpty() || str == QLatin1String("false") || str == QLatin1String("0")) { + if (ok) + *ok = true; + return false; + } else if (str == QLatin1String("true") || str == QLatin1String("1")) { + if (ok) + *ok = true; + return true; + } + + if (ok) + *ok = false; + return true; +} + +QT_END_NAMESPACE |