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// SPDX-License-Identifier: GPL-2.0-or-later
#ifndef CANVAS_AXONOMGRID_H
#define CANVAS_AXONOMGRID_H
/*
* Authors:
* Johan Engelen <j.b.c.engelen@alumnus.utwente.nl>
*
* Copyright (C) 2006-2012 Authors
* Released under GNU GPL v2+, read the file 'COPYING' for more information.
*/
#include "line-snapper.h"
#include "canvas-grid.h"
class SPNamedView;
namespace Inkscape {
class CanvasItemBuffer;
namespace XML {
class Node;
};
class CanvasAxonomGrid : public CanvasGrid {
public:
CanvasAxonomGrid(SPNamedView * nv, Inkscape::XML::Node * in_repr, SPDocument * in_doc);
~CanvasAxonomGrid() override;
void Update (Geom::Affine const &affine, unsigned int flags) override;
void Render (Inkscape::CanvasItemBuffer *buf) override;
void readRepr() override;
void onReprAttrChanged (Inkscape::XML::Node * repr, char const *key, char const *oldval, char const *newval, bool is_interactive) override;
double lengthy; /**< The lengths of the primary y-axis */
double angle_deg[3]; /**< Angle of each axis (note that angle[2] == 0) */
double angle_rad[3]; /**< Angle of each axis (note that angle[2] == 0) */
double tan_angle[3]; /**< tan(angle[.]) */
bool scaled; /**< Whether the grid is in scaled mode */
protected:
friend class CanvasAxonomGridSnapper;
Geom::Point ow; /**< Transformed origin by the affine for the zoom */
double lyw = 1.0; /**< Transformed length y by the affine for the zoom */
double lxw_x = 1.0;
double lxw_z = 1.0;
double spacing_ylines = 1.0;
Geom::Point sw; /**< the scaling factors of the affine transform */
Gtk::Widget * newSpecificWidget() override;
private:
CanvasAxonomGrid(const CanvasAxonomGrid&) = delete;
CanvasAxonomGrid& operator=(const CanvasAxonomGrid&) = delete;
void updateWidgets();
Inkscape::UI::Widget::RegisteredUnitMenu *_rumg;
Inkscape::UI::Widget::RegisteredScalarUnit *_rsu_ox;
Inkscape::UI::Widget::RegisteredScalarUnit *_rsu_oy;
Inkscape::UI::Widget::RegisteredScalarUnit *_rsu_sy;
Inkscape::UI::Widget::RegisteredScalar *_rsu_ax;
Inkscape::UI::Widget::RegisteredScalar *_rsu_az;
Inkscape::UI::Widget::RegisteredColorPicker *_rcp_gcol;
Inkscape::UI::Widget::RegisteredColorPicker *_rcp_gmcol;
Inkscape::UI::Widget::RegisteredSuffixedInteger *_rsi;
};
class CanvasAxonomGridSnapper : public LineSnapper
{
public:
CanvasAxonomGridSnapper(CanvasAxonomGrid *grid, SnapManager *sm, Geom::Coord const d);
bool ThisSnapperMightSnap() const override;
Geom::Coord getSnapperTolerance() const override; //returns the tolerance of the snapper in screen pixels (i.e. independent of zoom)
bool getSnapperAlwaysSnap() const override; //if true, then the snapper will always snap, regardless of its tolerance
private:
LineList _getSnapLines(Geom::Point const &p) const override;
void _addSnappedLine(IntermSnapResults &isr, Geom::Point const &snapped_point, Geom::Coord const &snapped_distance, SnapSourceType const &source, long source_num, Geom::Point const &normal_to_line, const Geom::Point &point_on_line) const override;
void _addSnappedPoint(IntermSnapResults &isr, Geom::Point const &snapped_point, Geom::Coord const &snapped_distance, SnapSourceType const &source, long source_num, bool constrained_snap) const override;
void _addSnappedLinePerpendicularly(IntermSnapResults &isr, Geom::Point const &snapped_point, Geom::Coord const &snapped_distance, SnapSourceType const &source, long source_num, bool constrained_snap) const override;
CanvasAxonomGrid *grid;
};
}; //namespace Inkscape
#endif
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