box3d-context.h revision 4358ff6156766a315e38e72a5c3c83d6d5f7486b
#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
*/
#include <sigc++/sigc++.h>
#include "event-context.h"
#include "proj_pt.h"
#include "vanishing-point.h"
struct SPKnotHolder;
#define SP_TYPE_BOX3D_CONTEXT (sp_box3d_context_get_type ())
#define SP_BOX3D_CONTEXT(obj) (GTK_CHECK_CAST ((obj), SP_TYPE_BOX3D_CONTEXT, Box3DContext))
#define SP_BOX3D_CONTEXT_CLASS(klass) (GTK_CHECK_CLASS_CAST ((klass), SP_TYPE_BOX3D_CONTEXT, Box3DContextClass))
#define SP_IS_BOX3D_CONTEXT(obj) (GTK_CHECK_TYPE ((obj), SP_TYPE_BOX3D_CONTEXT))
#define SP_IS_BOX3D_CONTEXT_CLASS(klass) (GTK_CHECK_CLASS_TYPE ((klass), SP_TYPE_BOX3D_CONTEXT))
class Box3DContext;
class Box3DContextClass;
struct Box3DContext : public SPEventContext {
SPItem *item;
NR::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)
*/
NR::Point drag_origin;
NR::Point drag_ptB;
NR::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 occured (i.e. the box is already extruded) */
Box3D::VPDrag * _vpdrag;
sigc::connection sel_changed_connection;
Inkscape::MessageContext *_message_context;
};
struct Box3DContextClass {
SPEventContextClass parent_class;
};
/* Standard Gtk function */
GtkType sp_box3d_context_get_type (void);
#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:
*/
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