1 files changed, 103 insertions, 0 deletions
diff --git a/src/ui/tools/box3d-tool.h b/src/ui/tools/box3d-tool.h
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+++ b/src/ui/tools/box3d-tool.h
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+// SPDX-License-Identifier: GPL-2.0-or-later
+#ifndef __SP_BOX3D_CONTEXT_H__
+#define __SP_BOX3D_CONTEXT_H__
+
+/*
+ * 3D box drawing context
+ *
+ * Author:
+ *   Lauris Kaplinski <lauris@kaplinski.com>
+ *
+ * Copyright (C) 2000 Lauris Kaplinski
+ * Copyright (C) 2000-2001 Ximian, Inc.
+ * Copyright (C) 2002 Lauris Kaplinski
+ * Copyright (C) 2007 Maximilian Albert <Anhalter42@gmx.de>
+ *
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+
+#include <cstddef>
+
+#include <2geom/point.h>
+#include <sigc++/connection.h>
+
+#include "proj_pt.h"
+#include "vanishing-point.h"
+
+#include "ui/tools/tool-base.h"
+
+class SPItem;
+class SPBox3D;
+
+namespace Box3D {
+    struct VPDrag;
+}
+
+namespace Inkscape {
+    class Selection;
+}
+
+#define SP_BOX3D_CONTEXT(obj) (dynamic_cast<Inkscape::UI::Tools::Box3dTool*>((Inkscape::UI::Tools::ToolBase*)obj))
+#define SP_IS_BOX3D_CONTEXT(obj) (dynamic_cast<const Inkscape::UI::Tools::Box3dTool*>((const Inkscape::UI::Tools::ToolBase*)obj) != NULL)
+
+namespace Inkscape {
+namespace UI {
+namespace Tools {
+
+class Box3dTool : public ToolBase {
+public:
+    Box3dTool(SPDesktop *desktop);
+    ~Box3dTool() override;
+
+    Box3D::VPDrag *_vpdrag;
+
+    bool root_handler(GdkEvent *event) override;
+    bool item_handler(SPItem *item, GdkEvent *event) override;
+
+private:
+    SPBox3D* box3d;
+    Geom::Point center;
+
+    /**
+     * save three corners while dragging:
+     * 1) the starting point (already done by the event_context)
+     * 2) drag_ptB --> the opposite corner of the front face (before pressing shift)
+     * 3) drag_ptC --> the "extruded corner" (which coincides with the mouse pointer location
+     *    if we are ctrl-dragging but is constrained to the perspective line from drag_ptC
+     *    to the vanishing point Y otherwise)
+     */
+    Geom::Point drag_origin;
+    Geom::Point drag_ptB;
+    Geom::Point drag_ptC;
+
+    Proj::Pt3 drag_origin_proj;
+    Proj::Pt3 drag_ptB_proj;
+    Proj::Pt3 drag_ptC_proj;
+
+    bool ctrl_dragged; /* whether we are ctrl-dragging */
+    bool extruded; /* whether shift-dragging already occurred (i.e. the box is already extruded) */
+
+    sigc::connection sel_changed_connection;
+
+	void selection_changed(Inkscape::Selection* selection);
+
+	void drag(guint state);
+	void finishItem();
+};
+
+}
+}
+}
+
+#endif /* __SP_BOX3D_CONTEXT_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 :