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// SPDX-License-Identifier: GPL-2.0-or-later
/**
* Authors:
* Lauris Kaplinski <lauris@kaplinski.com>
* Carl Hetherington <inkscape@carlh.net>
*
* Copyright (C) 1999-2002 Lauris Kaplinski
* Copyright (C) 2000-2001 Ximian, Inc.
*
* Released under GNU GPL v2+, read the file 'COPYING' for more information.
*/
#ifndef SEEN_SP_SVG_LENGTH_H
#define SEEN_SP_SVG_LENGTH_H
#include <string>
/**
* SVG length type
*/
class SVGLength {
public:
SVGLength();
enum Unit {
NONE,
PX,
PT,
PC,
MM,
CM,
INCH,
EM,
EX,
PERCENT,
LAST_UNIT = PERCENT
};
// The object's value is valid / exists in SVG.
bool _set;
// The unit of value.
Unit unit;
// The value of this SVGLength as found in the SVG.
float value;
// The value in pixels (value * pixels/unit).
float computed;
float operator=(float v) {
_set = true;
unit = NONE;
value = computed = v;
return v;
}
bool read(char const *str);
void readOrUnset(char const *str, Unit u = NONE, float v = 0, float c = 0);
bool readAbsolute(char const *str);
std::string getUnit() const;
bool isAbsolute();
std::string write() const;
// To set 'v' use '='
void set(Unit u, float v); // Sets computed value based on u and v.
void set(Unit u, float v, float c); // Sets all three values.
void unset(Unit u = NONE, float v = 0, float c = 0);
void scale(double scale); // Scales length (value, computed), leaving unit alone.
void update(double em, double ex, double scale); // Updates computed value
};
char const *sp_svg_length_get_css_units(SVGLength::Unit unit);
bool svg_length_absolute_unit(SVGLength::Unit unit);
#endif // SEEN_SP_SVG_LENGTH_H
/*
Local Variables:
mode:c++
c-file-style:"stroustrup"
c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
indent-tabs-mode:nil
fill-column:99
End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8 :
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