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/* This file is part of the KDE project
* Copyright (C) 2009 Jan Hambrecht <jaham@gmx.net>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef SVGUTIL_H
#define SVGUTIL_H
#include "flake_export.h"
#include <QPointF>
#include <QSizeF>
#include <QTransform>
class QString;
class QRectF;
class SvgGraphicsContext;
class FLAKE_EXPORT SvgUtil
{
public:
/**
* Converts given value from userspace units to points.
*/
static double fromUserSpace(double value);
/**
* Converts given value from points to userspace units.
*/
static double toUserSpace(double value);
/// Converts given point from points to userspace units.
static QPointF toUserSpace(const QPointF &point);
/// Converts given rectangle from points to userspace units.
static QRectF toUserSpace(const QRectF &rect);
/// Converts given rectangle from points to userspace units.
static QSizeF toUserSpace(const QSizeF &size);
/**
* Parses the given string containing a percentage number.
* @param s the input string containing the percentage
* @return the percentage number normalized to 0..100
*/
static double toPercentage(QString s);
/**
* Parses the given string containing a percentage number.
* @param s the input string containing the percentage
* @return the percentage number normalized to 0..1
*/
static double fromPercentage(QString s);
/**
* Converts position from objectBoundingBox units to userSpace units.
*/
static QPointF objectToUserSpace(const QPointF &position, const QRectF &objectBound);
/**
* Converts size from objectBoundingBox units to userSpace units.
*/
static QSizeF objectToUserSpace(const QSizeF &size, const QRectF &objectBound);
/**
* Converts position from userSpace units to objectBoundingBox units.
*/
static QPointF userSpaceToObject(const QPointF &position, const QRectF &objectBound);
/**
* Converts size from userSpace units to objectBoundingBox units.
*/
static QSizeF userSpaceToObject(const QSizeF &size, const QRectF &objectBound);
/**
* Parses transform attribute value into a matrix.
* @param transform the transform attribute value
* @return the resulting transformation matrix
*/
static QTransform parseTransform(const QString &transform);
/// Converts specified transformation to a string
static QString transformToString(const QTransform &transform);
/// Parses a viewbox attribute into an rectangle
static QRectF parseViewBox(QString viewbox);
/// Parses a length attribute
static qreal parseUnit(SvgGraphicsContext *gc, const QString &, bool horiz = false, bool vert = false, const QRectF &bbox = QRectF());
/// parses a length attribute in x-direction
static qreal parseUnitX(SvgGraphicsContext *gc, const QString &unit);
/// parses a length attribute in y-direction
static qreal parseUnitY(SvgGraphicsContext *gc, const QString &unit);
/// parses a length attribute in xy-direction
static qreal parseUnitXY(SvgGraphicsContext *gc, const QString &unit);
/// parses the number into parameter number
static const char * parseNumber(const char *ptr, qreal &number);
};
#endif // SVGUTIL_H
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