box3d.h

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// SPDX-License-Identifier: GPL-2.0-or-later
#ifndef SEEN_SP_BOX3D_H
#define SEEN_SP_BOX3D_H
 
/*
 * SVG <box3d> implementation
 *
 * Authors:
 *   Lauris Kaplinski <lauris@kaplinski.com>
 *   Maximilian Albert <Anhalter42@gmx.de>
 *   Abhishek Sharma
 *   Jon A. Cruz <jon@joncruz.org.
 *
 * Copyright (C) 2007      Authors
 * Copyright (C) 1999-2002 Lauris Kaplinski
 * Copyright (C) 2000-2001 Ximian, Inc.
 *
 * Released under GNU GPL v2+, read the file 'COPYING' for more information.
 */
 
#include "sp-item-group.h"
#include "proj_pt.h"
#include "axis-manip.h"
 
#define SP_TYPE_BOX3D            (box3d_get_type ())
 
class Persp3D;
class Persp3DReference;
 
class SPBox3D final : public SPGroup {
public:
    SPBox3D();
    ~SPBox3D() override;
    int tag() const override { return tag_of<decltype(*this)>; }
 
    int z_orders[6]; // z_orders[i] holds the ID of the face at position #i in the group (from top to bottom)
 
    char *persp_href;
    Persp3DReference *persp_ref;
 
    Proj::Pt3 orig_corner0;
    Proj::Pt3 orig_corner7;
 
    Proj::Pt3 save_corner0;
    Proj::Pt3 save_corner7;
 
    Box3D::Axis swapped; // to indicate which coordinates are swapped during dragging
 
    int my_counter; // for debugging only
 
    static SPBox3D * createBox3D(SPItem * parent);
 
    void build(SPDocument *document, Inkscape::XML::Node *repr) override;
    void release() override;
    void set(SPAttr key, char const* value) override;
    void update(SPCtx *ctx, unsigned int flags) override;
    Inkscape::XML::Node* write(Inkscape::XML::Document *xml_doc, Inkscape::XML::Node *repr, unsigned int flags) override;
 
        virtual const char* display_name();
    Geom::Affine set_transform(Geom::Affine const &transform) override;
    void convert_to_guides() const override;
    const char* displayName() const override;
    char *description() const override;
 
    void position_set ();
    Geom::Point get_corner_screen (unsigned int id, bool item_coords = true) const;
    Proj::Pt3 get_proj_center ();
    Geom::Point get_center_screen ();
 
    void set_corner (unsigned int id, Geom::Point const &new_pos, Box3D::Axis movement, bool constrained);
    void set_center (Geom::Point const &new_pos, Geom::Point const &old_pos, Box3D::Axis movement, bool constrained);
    void corners_for_PLs (Proj::Axis axis, Geom::Point &corner1, Geom::Point &corner2, Geom::Point &corner3, Geom::Point &corner4) const;
    bool recompute_z_orders ();
    void set_z_orders ();
 
    int pt_lies_in_PL_sector (Geom::Point const &pt, int id1, int id2, Box3D::Axis axis) const;
    int VP_lies_in_PL_sector (Proj::Axis vpdir, int id1, int id2, Box3D::Axis axis) const;
 
    void relabel_corners();
    void check_for_swapped_coords();
 
    static std::list<SPBox3D *> extract_boxes(SPObject *obj);
 
    Persp3D *get_perspective() const;
    void switch_perspectives(Persp3D *old_persp, Persp3D *new_persp, bool recompute_corners = false);
 
    SPGroup *convert_to_group();
};
 
#endif // SEEN_SP_BOX3D_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:textwidth=99 :