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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Inkscape SPGrid implementation
*
* Authors:
* James Ferrarelli
* Johan Engelen <johan@shouraizou.nl>
* Lauris Kaplinski
* Abhishek Sharma
* Jon A. Cruz <jon@joncruz.org>
* Tavmong Bah <tavmjong@free.fr>
* see git history
*
* Copyright (C) 2022 Authors
*
* Released under GNU GPL v2+, read the file 'COPYING' for more information.
*/
#ifndef SEEN_SP_GRID_H_
#define SEEN_SP_GRID_H_
#include "display/control/canvas-item-ptr.h"
#include "object/sp-object.h"
#include "svg/svg-bool.h"
#include "svg/svg-length.h"
#include "svg/svg-angle.h"
#include <memory>
#include <vector>
class SPDesktop;
namespace Inkscape {
class CanvasItemGrid;
class Snapper;
namespace Util {
class Unit;
}
} // namespace Inkscape
enum class GridType
{
RECTANGULAR,
AXONOMETRIC
};
class SPGrid final : public SPObject {
public:
SPGrid();
~SPGrid() override;
int tag() const override { return tag_of<decltype(*this)>; }
static void create_new(SPDocument *doc, Inkscape::XML::Node *parent, GridType type);
void setPrefValues();
void show(SPDesktop *desktop);
void hide(SPDesktop const *desktop);
bool isEnabled() const;
void setEnabled(bool v);
bool isVisible() const { return isEnabled() && _visible; }
void setVisible(bool v);
bool isDotted() const { return _dotted; }
void setDotted(bool v);
bool getSnapToVisibleOnly() const { return _snap_to_visible_only; }
void setSnapToVisibleOnly(bool v);
guint32 getMajorColor() const { return _major_color; }
void setMajorColor(const guint32 color);
guint32 getMinorColor() const { return _minor_color; }
void setMinorColor(const guint32 color);
Geom::Point getOrigin() const;
void setOrigin(Geom::Point const &new_origin);
Geom::Point getSpacing() const;
void setSpacing(Geom::Point const &spacing);
guint32 getMajorLineInterval() const { return _major_line_interval; }
void setMajorLineInterval(guint32 interval);
double getAngleX() const { return _angle_x.computed; }
void setAngleX(double deg);
double getAngleZ() const { return _angle_z.computed; }
void setAngleZ(double deg);
const char *typeName() const;
const char *displayName() const;
GridType getType() const { return _grid_type; }
const char *getSVGType() const;
void setSVGType(const char *svgtype);
void setUnit(const Glib::ustring &units);
const Inkscape::Util::Unit *getUnit() const;
bool isPixel() const { return _pixel; }
bool isLegacy() const { return _legacy; }
void scale(const Geom::Scale &scale);
Inkscape::CanvasItemGrid *getAssociatedView(SPDesktop const *desktop);
Inkscape::Snapper *snapper();
std::pair<Geom::Point, Geom::Point> getEffectiveOriginAndSpacing() const;
std::vector<CanvasItemPtr<Inkscape::CanvasItemGrid>> views;
protected:
void build(SPDocument *doc, Inkscape::XML::Node *repr) override;
void set(SPAttr key, const char *value) override;
void release() override;
void modified(unsigned int flags) override;
void update(SPCtx *ctx, unsigned int flags) override;
private:
void _checkOldGrid(SPDocument *doc, Inkscape::XML::Node *repr);
void _recreateViews();
SVGBool _visible;
SVGBool _enabled;
SVGBool _snap_to_visible_only;
SVGBool _dotted;
SVGLength _origin_x;
SVGLength _origin_y;
SVGLength _spacing_x;
SVGLength _spacing_y;
SVGAngle _angle_x; // only for axonomgrid, stored in degrees
SVGAngle _angle_z; // only for axonomgrid, stored in degrees
guint32 _major_line_interval;
guint32 _major_color;
guint32 _minor_color;
bool _pixel; // is in user units
bool _legacy; // a grid from versions prior to inkscape 0.98
GridType _grid_type;
std::unique_ptr<Inkscape::Snapper> _snapper;
Inkscape::Util::Unit const *_display_unit;
sigc::connection _page_selected_connection;
sigc::connection _page_modified_connection;
};
#endif // SEEN_SP_GRID_H_
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