1 files changed, 105 insertions, 0 deletions
diff --git a/src/object/box3d.h b/src/object/box3d.h
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--- /dev/null
+++ b/src/object/box3d.h
@@ -0,0 +1,105 @@
+// 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 : public SPGroup {
+public:
+	SPBox3D();
+	~SPBox3D() override;
+
+    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
+
+    /**
+     * Create a SPBox3D and append it to the parent.
+     */
+    static SPBox3D * createBox3D(SPItem * parent);
+
+	void build(SPDocument *document, Inkscape::XML::Node *repr) override;
+	void release() override;
+	void set(SPAttributeEnum 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 box3d_position_set (SPBox3D *box);
+Proj::Pt3 box3d_get_proj_corner (SPBox3D const *box, unsigned int id);
+Geom::Point box3d_get_corner_screen (SPBox3D const *box, unsigned int id, bool item_coords = true);
+Proj::Pt3 box3d_get_proj_center (SPBox3D *box);
+Geom::Point box3d_get_center_screen (SPBox3D *box);
+
+void box3d_set_corner (SPBox3D *box, unsigned int id, Geom::Point const &new_pos, Box3D::Axis movement, bool constrained);
+void box3d_set_center (SPBox3D *box, Geom::Point const &new_pos, Geom::Point const &old_pos, Box3D::Axis movement, bool constrained);
+void box3d_corners_for_PLs (const SPBox3D * box, Proj::Axis axis, Geom::Point &corner1, Geom::Point &corner2, Geom::Point &corner3, Geom::Point &corner4);
+bool box3d_recompute_z_orders (SPBox3D *box);
+void box3d_set_z_orders (SPBox3D *box);
+
+int box3d_pt_lies_in_PL_sector (SPBox3D const *box, Geom::Point const &pt, int id1, int id2, Box3D::Axis axis);
+int box3d_VP_lies_in_PL_sector (SPBox3D const *box, Proj::Axis vpdir, int id1, int id2, Box3D::Axis axis);
+
+void box3d_relabel_corners(SPBox3D *box);
+void box3d_check_for_swapped_coords(SPBox3D *box);
+
+std::list<SPBox3D *> box3d_extract_boxes(SPObject *obj);
+
+Persp3D *box3d_get_perspective(SPBox3D const *box);
+void box3d_switch_perspectives(SPBox3D *box, Persp3D *old_persp, Persp3D *new_persp, bool recompute_corners = false);
+
+SPGroup *box3d_convert_to_group(SPBox3D *box);
+
+
+#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 :