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// SPDX-License-Identifier: GPL-2.0-or-later
#ifndef COMMON_CONTEXT_H_SEEN
#define COMMON_CONTEXT_H_SEEN
/*
* Common drawing mode. Base class of Eraser and Calligraphic tools.
*
* Authors:
* Mitsuru Oka <oka326@parkcity.ne.jp>
* Lauris Kaplinski <lauris@kaplinski.com>
*
* The original dynadraw code:
* Paul Haeberli <paul@sgi.com>
*
* Copyright (C) 1998 The Free Software Foundation
* Copyright (C) 1999-2002 authors
* Copyright (C) 2001-2002 Ximian, Inc.
* Copyright (C) 2008 Jon A. Cruz
*
* Released under GNU GPL v2+, read the file 'COPYING' for more information.
*/
#include "ui/tools/tool-base.h"
#include <memory>
class SPCurve;
namespace Inkscape {
namespace XML {
class Node;
}
}
#define SAMPLING_SIZE 8 /* fixme: ?? */
namespace Inkscape {
class CanvasItemBpath;
namespace UI {
namespace Tools {
class DynamicBase : public ToolBase {
public:
DynamicBase(SPDesktop *desktop, std::string prefs_path, const std::string &cursor_filename);
~DynamicBase() override;
void set(const Inkscape::Preferences::Entry& val) override;
protected:
/** accumulated shape which ultimately goes in svg:path */
std::unique_ptr<SPCurve> accumulated;
/** canvas items for "committed" segments */
std::vector<Inkscape::CanvasItemBpath *> segments;
/** canvas item for red "leading" segment */
Inkscape::CanvasItemBpath *currentshape;
/** shape of red "leading" segment */
std::unique_ptr<SPCurve> currentcurve;
/** left edge of the stroke; combined to get accumulated */
std::unique_ptr<SPCurve> cal1;
/** right edge of the stroke; combined to get accumulated */
std::unique_ptr<SPCurve> cal2;
/** left edge points for this segment */
Geom::Point point1[SAMPLING_SIZE];
/** right edge points for this segment */
Geom::Point point2[SAMPLING_SIZE];
/** number of edge points for this segment */
gint npoints;
/* repr */
Inkscape::XML::Node *repr;
/* common */
Geom::Point cur;
Geom::Point vel;
double vel_max;
Geom::Point acc;
Geom::Point ang;
Geom::Point last;
Geom::Point del;
/* extended input data */
gdouble pressure;
gdouble xtilt;
gdouble ytilt;
/* attributes */
bool dragging; /* mouse state: mouse is dragging */
bool usepressure;
bool usetilt;
double mass, drag;
double angle;
double width;
double vel_thin;
double flatness;
double tremor;
double cap_rounding;
bool is_drawing;
/** uses absolute width independent of zoom */
bool abs_width;
Geom::Point getViewPoint(Geom::Point n) const;
Geom::Point getNormalizedPoint(Geom::Point v) const;
};
}
}
}
#endif // COMMON_CONTEXT_H_SEEN
/*
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:textwidth=99 :
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