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/*
Copyright (C) 2001-2003 KSVG Team
This file is part of the KDE project
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 SVGLengthImpl_H
#define SVGLengthImpl_H
#include <dom/dom_misc.h>
#include "ksvg_lookup.h"
namespace KSVG
{
enum LengthMode
{
LENGTHMODE_UNKNOWN = 0,
LENGTHMODE_WIDTH = 1,
LENGTHMODE_HEIGHT = 2,
LENGTHMODE_OTHER = 3
};
class SVGShapeImpl;
class SVGLocatableImpl;
class SVGElementImpl;
class SVGLengthImpl : public DOM::DomShared
{
public:
SVGLengthImpl(LengthMode mode = LENGTHMODE_UNKNOWN, SVGElementImpl *context = 0);
SVGLengthImpl(const SVGLengthImpl &);
virtual ~SVGLengthImpl();
SVGLengthImpl &operator=(const SVGLengthImpl &);
unsigned short unitType() const;
void setValue(float value);
float value();
void setValueInSpecifiedUnits(float valueInSpecifiedUnits);
float valueInSpecifiedUnits() const;
void setValueAsString(const DOM::DOMString &);
DOM::DOMString valueAsString() const;
void newValueSpecifiedUnits(unsigned short unitType, float valueInSpecifiedUnits);
void convertToSpecifiedUnits(unsigned short unitType);
operator float();
static void convertPercentageToFloat(const TQString &perc, float &result);
// This method converts the value val to percentage notation ("xxx%").
// If the value string ends with the percentage sign it is returned,
// else the value is calculated against benchmark, ie. "0.2" -> "20%"
// for benchmark 1.0. This method should be useful in contexts that
// know the values should be in percentages up front, like bbox
// calculations.
static TQString convertValToPercentage(const TQString &val, float benchmark = 1.0);
SVGElementImpl *context() const;
void setContext(SVGElementImpl *context);
void setBBoxContext(SVGShapeImpl *bbox);
private:
float m_value;
float m_valueInSpecifiedUnits;
float percentageOfViewport();
void convertStringToPx(TQString s);
void convertNumToPx();
bool getValFromPx();
unsigned short m_unitType : 4;
// KSVG extension
LengthMode m_mode : 2;
SVGElementImpl *m_context;
SVGShapeImpl *m_bboxContext;
double dpi();
public:
KSVG_GET
KSVG_PUT
enum
{
// Properties
UnitType, Value, ValueAsString, ValueInSpecifiedUnits,
// Functions
NewValueSpecifiedUnits, ConvertToSpecifiedUnits
};
KJS::Value getValueProperty(KJS::ExecState *exec, int token) const;
void putValueProperty(KJS::ExecState *exec, int token, const KJS::Value &value, int attr);
};
class SVGLengthImplConstructor : public KJS::ObjectImp
{
public:
SVGLengthImplConstructor(KJS::ExecState *) { }
KJS::Value getValueProperty(KJS::ExecState *, int token) const;
// no put - all read-only
KSVG_GET
};
KJS::Value getSVGLengthImplConstructor(KJS::ExecState *exec);
}
KSVG_DEFINE_PROTOTYPE(SVGLengthImplProto)
KSVG_IMPLEMENT_PROTOFUNC(SVGLengthImplProtoFunc, SVGLengthImpl)
#endif
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